WASTE MANAGEMENT INC
10-Q/A, 1998-08-28
REFUSE SYSTEMS
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<PAGE>

- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------

                     SECURITIES AND EXCHANGE COMMISSION
                          Washington, D.C. 20549

                                FORM 10-Q/A
(MARK ONE)

/X/  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934

                    For the quarterly period ended June 30, 1998
                                          
                                         OR

/ /  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934


          For the transition period from  _____________  to  _____________

                           COMMISSION FILE NUMBER 1-12154
     
                               WASTE MANAGEMENT, INC.
               (Exact name of registrant as specified in its charter)

               DELAWARE                                    73-1309529
    (State or other jurisdiction of                     (I.R.S. Employer
     incorporation or organization)                    Identification No.)

                                          
                                    1001 FANNIN
                                     SUITE 4000
                                HOUSTON, TEXAS 77002
                      (Address of principal executive offices)


                                   (713) 512-6200
                (Registrant's telephone number, including area code)
                                          
                              USA WASTE SERVICES, INC.
           (Former name or former address, if changed since last report)

     Indicate by check mark whether the registrant (1) has filed all reports 
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 
1934 during the preceding 12 months (or for such shorter period that the 
registrant was required to file such reports), and (2) has been subject to 
such filing requirements for the past 90 days.   Yes  /X/   No   / /

     The number of shares of Common Stock, $.01 par value, of the Registrant
outstanding at August 10, 1998, was 571,789,484 (excluding 7,892,612 shares held
in the Waste Management, Inc. Employee Stock Benefit Trust).

- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>

PART I.
ITEM 1.  FINANCIAL STATEMENTS.


                               WASTE MANAGEMENT, INC.
                                          
                       CONDENSED CONSOLIDATED BALANCE SHEETS
                 (IN THOUSANDS, EXCEPT SHARE AND PAR VALUE AMOUNTS)
                                    (UNAUDITED)

                                      ASSETS
<TABLE>
                                                                       June 30,      December 31,
                                                                         1998            1997
                                                                      ----------     ------------
<S>                                                                   <C>            <C>
Current assets:          
     Cash and cash equivalents                                        $   44,990     $   51,241 
     Accounts receivable, net                                            549,842        442,347 
     Notes and other receivables                                          80,517         56,361 
     Deferred income taxes                                                41,924         52,592 
     Prepaid expenses and other                                           58,396         52,845 
                                                                      ----------     ----------
          Total current assets                                           775,669        655,386 
Notes and other receivables                                               23,300         32,386 
Property and equipment, net                                            5,123,117      3,955,008 
Excess of cost over net assets of acquired businesses, net             2,035,462      1,539,927 
Other intangible assets, net                                             136,543        106,058 
Other assets                                                             280,709        334,080 
                                                                      ----------     ----------
          Total assets                                                $8,374,800     $6,622,845 
                                                                      ----------     ----------
                                                                      ----------     ----------
                           LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
     Accounts payable                                                 $  245,611     $  237,176
     Accrued liabilities                                                 191,490        228,771
     Deferred revenues                                                    85,120         63,417
     Current maturities of long-term debt                                 53,172         39,286
                                                                      ----------     ----------
          Total current liabilities                                      575,393        568,650
Long-term debt, less current maturities                                4,050,989      2,724,443
Deferred income taxes                                                    351,446        320,439
Closure, post-closure, and other liabilities                             446,745        380,337
                                                                      ----------     ----------
          Total liabilities                                            5,424,573      3,993,869
                                                                      ----------     ----------
Commitments and contingencies

Stockholders' equity:
     Preferred stock, $.01 par value; 10,000,000
          shares authorized; none issued                                      --             --
     Common stock, $.01 par value;
          500,000,000 shares authorized; 223,660,312 and
          217,805,496 shares issued, respectively                          2,237          2,178
     Additional paid-in capital                                        2,513,472      2,392,797
     Retained earnings                                                   497,667        253,497
     Accumulated other comprehensive income                              (62,665)       (19,012)
     Less treasury stock at cost, 23,485 shares                             (484)          (484)
                                                                      ----------     ----------
          Total stockholders' equity                                   2,950,227      2,628,976
                                                                      ----------     ----------
          Total liabilities and stockholders' equity                  $8,374,800     $6,622,845
                                                                      ----------     ----------
                                                                      ----------     ----------
</TABLE>
                 The accompanying notes are an integral part 
             of these condensed consolidated financial statements.

                                        1
<PAGE>
                               WASTE MANAGEMENT, INC.
                                          
                  CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                      (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
                                    (UNAUDITED)

<TABLE>
                                                       Three Months Ended June 30,   Six Months Ended June 30,
                                                       ---------------------------   -------------------------
                                                           1998           1997          1998           1997
                                                         --------       --------     ----------     ----------
<S>                                                      <C>            <C>          <C>            <C>
Operating revenues                                       $882,044       $656,225     $1,651,484     $1,116,709
                                                         --------       --------     ----------     ----------
Costs and expenses:
     Operating (exclusive of depreciation
      and amortization shown below)                       437,763        340,147        835,255        581,465
     General and administrative                            83,680         71,730        165,596        125,407
     Depreciation and amortization                         99,606         75,406        185,716        131,584
     Merger costs                                           5,305          3,263          5,305          5,259
                                                         --------       --------     ----------     ----------
                                                          626,354        490,546      1,191,872        843,715
                                                         --------       --------     ----------     ----------
Income from operations                                    255,690        165,679        459,612        272,994
                                                         --------       --------     ----------     ----------
Other income (expense):
     Interest expense                                     (52,793)       (25,174)       (91,161)       (41,272)
     Interest and other income, net                         8,949          5,738         44,999         11,437
                                                         --------       --------     ----------     ----------
                                                          (43,844)       (19,436)       (46,162)       (29,835)
                                                         --------       --------     ----------     ----------
Income before income taxes and
     extraordinary item                                   211,846        146,243        413,450        243,159
Provision for income taxes                                 84,738         58,947        165,380         97,901
                                                         --------       --------     ----------     ----------
Income before extraordinary item                          127,108         87,296        248,070        145,258
Extraordinary item related to early retirement
     of debt, net of tax benefit of $2,600                 (3,900)            --         (3,900)            --
Net income                                               $123,208       $ 87,296     $  244,170     $  145,258
                                                         --------       --------     ----------     ----------
                                                         --------       --------     ----------     ----------
Basic earnings per common share:
     Income before extraordinary item                    $   0.57       $   0.43     $     1.13     $     0.73
     Extraordinary item                                     (0.01)            --          (0.01)            --
                                                         --------       --------     ----------     ----------
     Net income                                          $   0.56       $   0.43     $     1.12     $     0.73
                                                         --------       --------     ----------     ----------
                                                         --------       --------     ----------     ----------
Diluted earnings per common share:
     Income before extraordinary item                    $   0.53       $   0.40     $     1.05     $     0.69
     Extraordinary item                                     (0.01)            --          (0.01)            --
                                                         --------       --------     ----------     ----------
     Net income                                          $   0.52       $   0.40     $     1.04     $     0.69
                                                         --------       --------     ----------     ----------
                                                         --------       --------     ----------     ----------
Weighted average number of common
     shares outstanding                                   222,143        204,729        220,316        198,751
                                                         --------       --------     ----------     ----------
                                                         --------       --------     ----------     ----------
Weighted average number of common
     and dilutive potential common shares
     outstanding                                          247,772        232,951        245,469        224,362
                                                         --------       --------     ----------     ----------
                                                         --------       --------     ----------     ----------
</TABLE>

                  The accompanying notes are an integral part 
            of these condensed consolidated financial statements.

                                       2
<PAGE>

                                    WASTE MANAGEMENT, INC.
                  CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
                                        (IN THOUSANDS)
                                         (UNAUDITED)
 
<TABLE>
                                                                                               Accumulated
                                                                              Additional          Other
                                                     Preferred      Common      Paid-in          Retained  Comprehensive  Treasury
                                                       Stock         Stock      Capital          Earnings     Income        Stock
                                                       -----         -----      -------          --------     ------        -----
<S>                                                   <C>           <C>        <C>               <C>         <C>           <C>
Balance, December 31, 1997                            $  --         $2,178     $2,392,797        $253,497    $(19,012)     $(484)
     Common stock options and warrants
          exercised, including tax benefits              --             15         27,203              --          --         --
     Common stock issued in business
          combinations and development projects          --             40         86,667              --          --         --
     Foreign currency translation adjustment             --             --             --              --     (43,653)        --
     Other                                               --              4          6,805              --          --         --
     Net income                                          --             --             --         244,170          --         --
                                                      -----         ------     ----------        --------    --------      -----
Balance, June 30, 1998                                $  --         $2,237     $2,513,472        $497,667    $(62,665)     $(484)
                                                      -----         ------     ----------        --------    --------      -----
                                                      -----         ------     ----------        --------    --------      -----
</TABLE>

                          The accompanying notes are an integral part 
                    of these condensed consolidated financial statements.
                                              
                                              3
<PAGE>
                                          
                               WASTE MANAGEMENT, INC.
                  CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (IN THOUSANDS)
                                    (UNAUDITED)
<TABLE>
                                                             Six Months Ended June 30,
                                                            ----------------------------
                                                               1998             1997
                                                            -----------      -----------
<S>                                                         <C>              <C>
Cash flows from operating activities:
     Net income                                             $   244,170      $   145,258 
     Adjustments to reconcile net income to net                           
      cash provided by operating activities:
          Depreciation and amortization                         185,716          131,584 
          Deferred income taxes                                  42,957           36,231 
          Gain on sale of assets                                 (9,647)            (648)
          Equity in earnings of a partnership                   (28,124)              -- 
          Effect of nonrecurring charges                          4,689               -- 
          Changes in assets and liabilities, net of
               effects of acquisitions and divestitures:
          Accounts receivable and other receivables             (77,916)         (85,890)
          Prepaid expenses and other                            (27,687)           3,993
          Other assets                                          (18,596)           1,696
          Accounts payable and accrued liabilities             (230,818)        (113,349)
          Deferred revenues and other liabilities               (13,551)         (12,284)
          Other, net                                            (21,908)          (1,015)
                                                            -----------      -----------
Net cash provided by operating activities                        49,285          105,576 
                                                            -----------      -----------

Cash flows from investing activities:
     Acquisitions of businesses, net of cash acquired        (1,272,430)      (1,168,677)
     Capital expenditures                                      (214,583)        (208,738)
     Proceeds from sale of assets                                60,083          109,026 
     Proceeds from partnership distribution                     131,803               -- 
     Other                                                      (10,713)         (25,054)
                                                            -----------      -----------
Net cash used in investing activities                        (1,305,840)      (1,293,443)
                                                            -----------      -----------

Cash flows from financing activities:
     Proceeds from issuance of long-term debt                 1,558,368        1,658,295 
     Principal payments on long-term debt                      (325,395)        (948,465)
     Net proceeds from issuance of common stock                      --          506,381 
     Proceeds from exercise of common stock
          options and warrants                                   16,420           23,739 
     Other                                                          702           (8,276)
                                                            -----------      -----------
Net cash provided by financing activities                     1,250,095        1,231,674 
                                                            -----------      -----------
Effect of exchange rate changes on cash and
          cash equivalents                                          209             (126)
                                                            -----------      -----------
Increase (decrease) in cash and cash equivalents                 (6,251)          43,681 
Cash and cash equivalents at beginning of period                 51,241           26,079 
                                                            -----------      -----------
Cash and cash equivalents at end of period                  $    44,990      $    69,760 
                                                            -----------      -----------
                                                            -----------      -----------
</TABLE>

                 The accompanying notes are an integral part 
             of these condensed consolidated financial statements.

                                       4
<PAGE>

                               WASTE MANAGEMENT, INC.
                NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                    (UNAUDITED)

     On July 16, 1998, USA Waste Services, Inc. (this registrant) consummated a
merger with Waste Management, Inc. (collectively the "Combined Company")
accounted for as a pooling of interests pursuant to which USA Waste Services,
Inc. issued 0.725 of a share of its common stock for each outstanding share of
Waste Management, Inc. common stock (the "Merger").  At the effective time of
the Merger, Waste Management, Inc. changed its name to Waste Management
Holdings, Inc. ("WM Holdings") and USA Waste Services, Inc. changed its name to
Waste Management, Inc. (herein referred to as "Waste Management" or the
"Company").  With the exception of Note 9, the financial information and
disclosures included in Part I, Item 1 of this Form 10-Q presents the Company
prior to the consummation of the Merger.  Certain supplemental financial
information regarding the Combined Company is included in Part II, Item 5 of
this Form 10-Q.

     The condensed consolidated balance sheets of the Company as of June 30,
1998 and December 31, 1997, the condensed consolidated statements of operations
for the three and six months ended June 30, 1998 and 1997, the condensed
consolidated statement of stockholders' equity for the six months ended June 30,
1998, and the condensed consolidated statements of cash flows for the six months
ended June 30, 1998 and 1997 are unaudited.  In the opinion of management, such
financial statements include all adjustments, consisting only of normal
recurring adjustments, necessary for a fair presentation of financial position,
results of operations, and cash flows for the periods presented. The financial
statements presented herein should be read in connection with the Company's
Annual Report on Form 10-K for the year ended December 31, 1997, and with the
Company's Joint Proxy Statement/Prospectus dated June 9, 1998, that was filed in
connection with the Merger.

1.  BUSINESS COMBINATIONS

     On January 14, 1998, the Company acquired the solid waste divisions of City
Management Holdings Trust ("City Management") for approximately $810,000,000
consisting of cash paid, and liabilities and debt assumed.  The businesses
acquired are primarily located in the state of Michigan and include several
collection operations, landfills, and transfer stations.  This acquisition was
accounted for using the purchase method of accounting.

     On June 18, 1998, the Company acquired the solid waste businesses of
American Waste Systems, Inc. ("American") for approximately $150,000,000 in
cash.  The acquired assets include three landfills and one collection operation
located in Ohio.  This acquisition was accounted for using the purchase method
of accounting.

     In addition to the acquisitions of City Management and American, during the
six months ended June 30, 1998, the Company acquired 12 landfills, 85 collection
businesses, and 15 transfer stations for approximately $410,000,000 in cash
paid, and liabilities and debt assumed, and approximately 1,715,000 shares of
the Company's common stock in business combinations accounted for using the
purchase method of accounting.

     The unaudited pro forma information set forth below assumes all
acquisitions accounted for as purchases from January 1, 1997 through June 30,
1998, had occurred at the beginning of 1997. The unaudited pro forma information
is presented for informational purposes only and is not necessarily indicative
of the results of operations that actually would have been achieved had the
purchase acquisitions been consummated at that time (in thousands, except per
share amounts):

                                     5
<PAGE>

<TABLE>
                                                 Six Months Ended June 30,
                                                 -------------------------
                                                    1998          1997
                                                 ----------    ----------
<S>                                              <C>           <C>
Operating revenues                               $1,743,934    $1,729,062
Income before extraordinary item                    254,298       177,382
Net income                                          250,398       177,382
Basic earnings per common share:
     Income before extraordinary item                  1.14          0.86
     Net income                                        1.13          0.86
Diluted earnings per common share:
     Income before extraordinary item                  1.07          0.81
     Net income                                        1.06          0.81
</TABLE>


     On May 6, 1998, the Company consummated a merger with TransAmerican Waste
Industries, Inc. ("TransAmerican") accounted for using the pooling of interests
method of accounting, pursuant to which the Company issued approximately
1,975,000 shares of its common stock in exchange for all outstanding shares of
TransAmerican (the "TransAmerican Merger").  Periods reported prior to the
consummation of the TransAmerican Merger were not restated to include the
accounts and operations of TransAmerican as the combined results would not be
materially different from the results as previously presented. The businesses
acquired include five collection operations, nine landfills, and two transfer
stations located throughout the southern United States.

     In addition to the TransAmerican Merger, the Company consummated four other
acquisitions accounted for as poolings of interests during the six months ended
June 30, 1998, pursuant to which the Company issued approximately 275,000 shares
of its common stock in exchange for all outstanding shares of the acquired
companies.  Periods reported prior to the consummation of these poolings of
interests were not restated to include the accounts and operations of the
acquired companies as the combined results would not be materially different
from the results as previously presented.  For the three months ended June 30,
1998, the Company incurred $5,305,000 of merger costs related to the
TransAmerican Merger and the other poolings of interests transactions
consummated during the period.

2.  LONG-TERM DEBT

Long-term debt consists of the following (in thousands):

<TABLE>
                                                                 June 30,     December 31,
                                                                   1998           1997
                                                                   ----           ----
<S>                                                             <C>             <C>
Senior revolving credit facility                                $1,458,000    $  430,000
6 1/2% Senior notes due 2002, net of unamortized discount
     of $1,988 and $2,229                                          348,012       347,771
7% Senior notes due 2004, net of unamortized discount
     of $2,218 and $2,455                                          297,782       297,545
7 1/8% Senior notes due 2007, net of unamortized discount
     of $2,722 and $2,919                                          297,278       297,081
7 1/8% Senior notes due 2017, net of unamortized discount
     of $1,491 and $1,533                                          148,509       148,467
4% Convertible subordinated notes due 2002                         535,275       535,275
4 1/2% Convertible subordinated notes due 2001                     149,333       149,500
5% Convertible subordinated debentures due 2006                    115,000       115,000
Tax-exempt bonds, principal payable in periodic installments,
     maturing through 2021, fixed and variable interest
     rates ranging from 3.25% to 9.25% at June 30, 1998            273,049       265,355
Other                                                              481,923       177,735
                                                                ----------    ----------
                                                                 4,104,161     2,763,729
Less current maturities                                             53,172        39,286
                                                                ----------    ----------
                                                                $4,050,989    $2,724,443
                                                                ----------    ----------
                                                                ----------    ----------
</TABLE>

     On August 7, 1997, the Company entered into a $2,000,000,000 senior
revolving credit facility with a consortium

                                       6
<PAGE>

of banks (the "Credit Facility"). The Credit Facility is used for general
corporate purposes including borrowings and standby letters of credit and
principal reductions are not required for the Credit Facility during its
five-year term.  The Credit Facility requires a facility fee not to exceed
0.30% per annum and loans under the Credit Facility bear interest at a rate
based on the Eurodollar rate plus a spread not to exceed 0.575% per annum.
At December 31, 1997, the Company had borrowed $430,000,000 and had issued
letters of credit of $467,029,000 under the Credit Facility.  The applicable
interest rate and facility fee at December 31, 1997, was 6.1% and 0.1125% per
annum, respectively.  At June 30, 1998, the Company had borrowed
$1,458,000,000 and had issued letters of credit of $472,786,000 under the
Credit Facility.  The applicable interest rate and facility fee was 5.925%
and 0.1125%, respectively, at June 30, 1998.

     Included in other long-term debt at June 30, 1998 is $325,000,000 of bank
debt that was incurred during the second quarter of 1998 and subsequently
retired with proceeds from the Company's $3,000,000,000 syndicated loan facility
that was entered into in conjunction with the consummation of the Merger (see
Notes 9 and 10).  Interest rates for the bank debt approximated the applicable
interest rates for the existing Credit Facility.

     Upon consummation of the TransAmerican Merger, the Company retired
approximately $40,000,000 of TransAmerican's outstanding indebtedness with an
average interest rate of 9.0% with proceeds from the Company's Credit Facility.
In connection with this debt retirement, the Company incurred prepayment
penalties and other fees of $1,811,000 and wrote off the related remaining
unamortized discounts and discounts and debt offering costs of $4,689,000, which
were recorded as an extraordinary item during the three months ended June 30,
1998.

3.  INCOME TAXES

     The difference in federal income taxes at the statutory rate and the
provision for income taxes for the three and six months ended June 30, 1998 and
1997, is primarily due to state and local income taxes.

4.  EARNINGS PER COMMON SHARE

     In February 1997, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 128, Earnings Per Share ("SFAS No.128").
SFAS No. 128 specifies the computation, presentation, and disclosure
requirements of earnings per share and supercedes Accounting Principles Board
Opinion No. 15, Earnings Per Share. SFAS No. 128 requires a dual presentation of
basic and diluted earnings per share.  Basic earnings per share, which is based
on the weighted average number of common shares outstanding, replaces primary
earnings per share.  Diluted earnings per share, which is based on the weighted
average number of common and dilutive potential common shares outstanding,
replaces fully diluted earnings per share and utilizes the average market price
per share as opposed to the greater of the average market price per share or
ending market price per share when applying the treasury stock method in
determining dilutive potential shares.  SFAS No. 128 was effective for the
Company for the year ended December 31, 1997, and required all prior-period
earnings per share data to be restated to conform to its presentation.
Accordingly, the Company has restated all previously reported earnings per share
amounts.

     Diluted earnings per common share for the three and six months ended
June 30, 1998 and 1997, have been calculated assuming conversion of the
Company's convertible subordinated notes and debentures.  For the three and
six months ended June 30, 1998, interest (net of taxes) of $5,069,000 and
$10,082,000, respectively, has been added back to net income for the diluted
earnings per share calculation.  For the three and six months ended June 30,
1997, interest (net of taxes) of $5,078,000 and $8,773,000, respectively, has
been added back to net income for the diluted earnings per share calculation.

     The following reconciles the number of common shares outstanding to the
weighted average number of common shares outstanding and the weighted average
number of common and dilutive potential common shares outstanding for the
purpose of calculating basic and dilutive earnings per common share,
respectively (in thousands):

                                   7
<PAGE>

<TABLE>
                                                  Three Months Ended June 30,    Six Months Ended June 30,
                                                  ---------------------------    -------------------------
                                                     1998           1997           1998            1997
                                                    -------        -------        -------         -------
<S>                                                 <C>            <C>            <C>             <C>
Number of common shares outstanding                 223,637        208,591        223,637         208,591
Effect of using weighted average common
     shares outstanding                              (1,494)        (3,862)        (3,321)         (9,840)
                                                    -------        -------        -------         -------
Weighted average number of common
     shares outstanding                             222,143        204,729        220,316         198,751
Dilutive effect of common stock
     options and warrants                             4,339          6,911          3,863           6,879
Dilutive effect of convertible subordinated
     notes and debentures                            21,290         21,311         21,290          18,732
                                                    -------        -------        -------         -------
Weighted average number of common
     and dilutive potential common shares
     outstanding                                    247,772        232,951        245,469         224,362
                                                    -------        -------        -------         -------
                                                    -------        -------        -------         -------
</TABLE>

5.  COMPREHENSIVE INCOME

     In June 1997, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 130, REPORTING COMPREHENSIVE INCOME ("SFAS
No. 130").  SFAS No. 130 establishes standards for reporting and presentation of
comprehensive income and its components.  Comprehensive income is defined as the
change in equity of a business enterprise during a period from transactions and
other events and circumstances from nonowner sources and includes all changes in
equity during a period except those resulting from investments by owners and
distributions to owners.  SFAS No. 130 is effective for the Company in 1998 and
requires comparative disclosure for prior periods presented.  Comprehensive
income and its components for the three and six months ended June 30, 1998 and
1997 is as follows (in thousands):

<TABLE>
                                                  Three Months Ended June 30,    Six Months Ended June 30,
                                                  ---------------------------    -------------------------
                                                     1998            1997          1998            1997
                                                   --------        -------       --------        --------
<S>                                                <C>             <C>           <C>             <C>
Net income                                         $123,208        $87,296       $244,170        $145,258
Foreign currency translation adjustment             (25,167)            55        (43,653)            (15)
                                                   --------        -------       --------        --------
Comprehensive income                               $ 98,041        $87,351       $200,517        $145,243
                                                   --------        -------       --------        --------
                                                   --------        -------       --------        --------
</TABLE>

   Accumulated other comprehensive income at June 30, 1998 and December 31,
1997, is comprised solely of foreign currency translation adjustments.

6.  PARTNERSHIP INVESTMENT

     In November 1997, the Company purchased for approximately $97,000,000, a
49% limited partner interest in a limited partnership which was formed for the
purpose of acquiring shares of WM Holdings common stock (prior to the Merger) on
the open market.  The limited partnership purchased shares of WM Holdings common
stock during November 1997 and sold substantially all of such shares in March
1998.  For the six months ended June 30, 1998, the Company recorded other income
of $28,124,000 ($16,875,000 after tax, or $0.07 per share on a diluted basis)
for its equity in the earnings of the limited partnership.

7.  COMMITMENTS AND CONTINGENCIES

     ENVIRONMENTAL MATTERS - The Company is subject to extensive and evolving
federal, state, and local environmental laws and regulations in the United
States and elsewhere that have been enacted in response to technological
advances and the public's increased concern over environmental issues.  As a
result of changing governmental attitudes in this area, management anticipates
that the Company will continually modify or replace facilities and alter methods
of operation.  The majority of the expenditures necessary to comply with the
environmental laws and regulations are made in the normal course of business.
Although the Company, to the best of its knowledge, is in compliance in all
material respects with the laws and regulations affecting its operations, there
is no assurance that the Company will not have to expend substantial amounts for
compliance in the future.

                                     8
<PAGE>

     LITIGATION - As of June 30, 1998, the Company or its subsidiaries has been
notified that they are potentially responsible parties ("PRPs") in connection
with eight locations listed on the Superfund National Priorities List ("NPL").
None of the eight NPL sites at which claims have been made against the Company
are owned by the Company, and they are at different procedural stages under
Superfund.  At six of the NPL sites, the Company's liability is well defined
as a consequence of a governmental decision as to the appropriate remedy.  At
the others, where investigations have not been completed, remedies have not
been selected or responsible parties have been unable to reach an agreement,
the Company's liability is less certain.  While the Company, based on its
status reviews of its PRP claims, does not currently anticipate that the
amount of such liabilities will have a material adverse effect on the
Company's operations, financial condition or cash flows, the measurement of
environmental liabilities is inherently difficult and the possibility remains
that technological, regulatory or enforcement developments, the results of
environmental studies, or other factors could materially alter this
expectation at any time.

     The Company and certain of its subsidiaries are parties to various other
litigation matters arising in the ordinary course of business.  Management
believes that the ultimate resolution of these matters will not have a material
adverse effect on the Company's financial position, results of operations or
cash flows.  In the normal course of its business and as a result of the
extensive government regulation of the solid waste industry, the Company
periodically may become subject to various judicial and administrative
proceedings and investigations involving federal, state, or local agencies. To
date, the Company has not been required to pay any material fine or had a
judgment entered against it for violation of any environmental law.  From time
to time, the Company also may be subjected to actions brought by citizen's
groups in connection with the permitting of landfills or transfer stations, or
alleging violations of the permits pursuant to which the Company operates.  From
time to time, the Company is also subject to claims for personal injury or
property damage arising out of accidents involving its vehicles or other
equipment.

     INSURANCE - The Company carries a broad range of insurance coverages, which
management considers prudent for the protection of the Company's assets and
operations.  Some of these coverages are subject to varying retentions of risk
by the Company.  The casualty coverages currently include $2,000,000 primary
commercial general liability and $1,000,000 primary automobile liability
supported by $300,000,000 in umbrella insurance protection.  The property policy
provides insurance coverage for all of the Company's real and personal property,
including California earthquake perils.  The Company also carries $200,000,000
in aircraft liability protection.

     The Company maintains workers' compensation insurance in accordance with
laws of the various states and countries in which it has employees.  The Company
also currently has an environmental impairment liability ("EIL") insurance
policy for certain of its landfills, transfer stations, and recycling facilities
that provides coverage for property damages and/or bodily injuries to third
parties caused by off-site pollution emanating from such landfills, transfer
stations, or recycling facilities.  This policy provides $5,000,000 of coverage
per loss with a $10,000,000 aggregate limit.  Upon consummation of the Merger
(see Note 9), this policy was amended to provide $10,000,000 of coverage per
loss with a $20,000,000 aggregate limit.

     To date, the Company has not experienced any difficulty in obtaining
insurance.  However, if the Company in the future is unable to obtain adequate
insurance, or decides to operate without insurance, a partially or completely
uninsured claim against the Company, if successful and of sufficient magnitude,
could have a material adverse effect on the Company's financial condition,
results of operations or cash flows.  Additionally, continued availability of
casualty and EIL insurance with sufficient limits at acceptable terms is an
important aspect of obtaining revenue-producing waste service contracts.

8.  NEW ACCOUNTING PRONOUNCEMENTS

     In June 1997, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 131, DISCLOSURES ABOUT SEGMENTS OF AN
ENTERPRISE AND RELATED INFORMATION ("SFAS No. 131").  SFAS No. 131 establishes
standards for reporting information about operating segments in annual financial
statements and requires that those enterprises report selected information about
operating segments in interim financial reports issued to shareholders.  SFAS
No. 131 is effective for fiscal years beginning after December 15, 1997.
Adoption is not required for interim periods in the initial year of application.
Adoption of this statement will not have a material impact on the Consolidated
Financial Statements of the Company.

     In April 1998, the Accounting Standards Executive Committee of the American
Institute of Certified Public

                                       9
<PAGE>

Accountants issued Statement of Position 98-5, ACCOUNTING FOR THE COSTS OF
START-UP ACTIVITIES ("SOP 98-5").  SOP 98-5 requires all costs of start-up
activities to be expensed as incurred.  Start-up activities are defined as
those one-time activities related to opening a new facility, introducing a
new product or service, conducting business in a new territory, conducting
business with a new class of customer or beneficiary, initiating a new
process in an existing facility, or commencing some new operation.
Activities related to mergers or acquisitions are not considered start-up
activities, and therefore SOP 98-5 does not change the accounting for such
items.  SOP 98-5 is effective for financial statements for years beginning
after December 15, 1998.  Management is currently assessing the impact that
the adoption of SOP 98-5 will have on the Company's financial position,
results of operations and cash flows.

9.  THE MERGER

     On July 16, 1998, the Company consummated the Merger with WM Holdings
(formerly Waste Management, Inc.) accounted for as a pooling of interests.
Under the terms of the agreement, the Company issued 0.725 of a share of its
common stock for each outstanding share of WM Holdings common stock.  The
Merger increased the Company's outstanding shares of common stock by
approximately 354,000,000 shares. The Combined Company is a leading
international provider of waste management and related services to
governmental, residential, commercial and industrial customers in the United
States and selected international markets.  The corporate headquarters of the
Combined Company is located in Houston, Texas, and John E. Drury, the
Company's Chairman of the Board and Chief Executive Officer, is the Chief
Executive Officer of the Combined Company.  Robert S. Miller, WM Holding's
Chief Executive Officer and Chairman of the Board, is the non-executive
Chairman of the Board for the Combined Company for a twelve month term, after
which, Mr. Drury will become the Chairman of the Board and continue as Chief
Executive Officer.  Rodney R. Proto, the Company's President and Chief
Operating Officer, and Earl E. DeFrates, the Company's Executive Vice
President and Chief Financial Officer, have been appointed to their respective
positions with the Combined Company.  See Part II, Item 5, of this Form 10-Q
for supplemental financial information on the Combined Company.

10.  SUBSEQUENT EVENTS

     On June 29, 1998, WM Holdings announced that it had reached an agreement
to acquire the publicly owned shares of its subsidiary, Waste Management
International plc ("WM International").  Under the agreement, holders of the
approximately 20% of outstanding shares of WM International not currently
owned by the Combined Company will receive 345 pence in cash for each share
held.  The agreement values each WM International American Depository Receipt
("ADR"), each representing two WM International ordinary shares, at
approximately $11.50 based on the exchange rate at the time of the
announcement. As the agreement is priced in pounds sterling, the U.S. dollar
value of the agreement will fluctuate with the pound-dollar exchange rate.
Closing of the transaction is subject to approval by the WM International
minority shareholders, approval of the English High Court and satisfaction of
other customary items, however, is expected to occur in the fourth quarter of
1998.

     On July 17, 1998, the Company issued $600,000,000 of 7% senior notes,
due on July 15, 2028 (the "7% Notes") and $600,000,000 of 6 1/8% mandatorily
tendered senior notes, due on July 15, 2011 (the "6 1/8% Notes").  The 7%
Notes are redeemable, in whole or in part, at the option of the Company at
any time and from time to time at the redemption price, as defined.  The
6 1/8% Notes are subject to certain mandatory tender features as described in
the indenture. The proceeds from the 7% Notes and 6 1/8% Notes were used to
repay outstanding indebtedness under the Company's senior revolving credit
facility.  Interest on the 7% Notes and 6 1/8% Notes is payable semi-annually
on January 15 and July 15.

     Upon consummation of the Merger, the Combined Company entered into a
syndicated loan facility in the amount of $3,000,000,000, which was an addition
to the Company's existing $2,000,000,000 senior revolving credit facility. The
syndicated loan facility is renewable annually and provides for a one-year term
option at the Company's request. The facility is available for the issuance of
commercial paper and borrowings and up to $800,000,000 of standby letters of
credit.  The applicable interest rate, facility fee and covenant restrictions
for the syndicated loan facility are similar to those contained in the Company's
existing senior revolving credit facility which was amended to provide for the
Merger.

                                       10
<PAGE>

ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS.

     On July 16, 1998, USA Waste Services, Inc. (this registrant) consummated a
merger with Waste Management, Inc. (collectively the "Combined Company")
accounted for as a pooling of interests pursuant to which USA Waste Services,
Inc. issued 0.725 of a share of its common stock for each outstanding share of
Waste Management, Inc. common stock (the "Merger").  At the effective time of
the Merger, Waste Management, Inc. changed its name to Waste Management
Holdings, Inc. ("WM Holdings") and USA Waste Services, Inc. changed its name to
Waste Management, Inc. (herein referred to as "Waste Management" or the
"Company").  The financial information and disclosures included in Part I, Item
2 of this Form 10-Q presents the Company prior to the consummation of the
Merger.  Certain supplemental financial information regarding the Combined
Company is included in Part II, Item 5 of this Form 10-Q.

     The following discussion reviews the Company's operations for the three and
six months ended June 30, 1998 and 1997, and should be read in conjunction with
the Company's Condensed Consolidated Financial Statements and related notes
thereto included elsewhere herein as well as the Company's Consolidated
Financial Statements and related notes thereto included in Part II, Item 8 of
the Company's Annual Report on Form 10-K for the year ended December 31, 1997.

     The following discussion includes statements that are forward-looking in
nature.  Whether such statements ultimately prove to be accurate depends upon a
variety of factors that may affect the business and operations of the Company.
Certain of these factors are discussed under "Business - Factors Influencing
Future Results and Accuracy of Forward-Looking Statements" included in Part I,
Item 1 of the Company's Annual Report on Form 10-K for the year ended December
31, 1997.

INTRODUCTION

     The Company provides nonhazardous solid waste management services,
consisting of collection, transfer, disposal, recycling, and other miscellaneous
services in various locations throughout the United States, Canada, and Puerto
Rico. Since August 1990, the Company has experienced significant growth
principally through the acquisition and integration of solid waste businesses
and is the third largest nonhazardous solid waste management company in North
America, as measured by revenues for the 1997 fiscal year.  As of June 30,
1998, the Company owned or operated an extensive network of landfills,
transfer stations, and collection operations serving in excess of nine million
customers.

     The Company's operating revenues consist primarily of fees charged for its
collection and disposal services. Operating revenues for collection services
include fees from residential, commercial, industrial, and municipal collection
customers.  A portion of these fees are billed in advance; a liability for
future service is recorded upon receipt of payment and operating revenues are
recognized as services are actually provided.  Fees for residential and
municipal services are normally based on the type and frequency of service.
Fees for commercial and industrial services are normally based on the type and
frequency of service and the volume of solid waste collected.

     The Company's operating revenues from its landfill operations consist of
disposal fees (known as tipping fees) charged to third parties and are normally
billed monthly.  Tipping fees are based on the volume or weight of solid waste
being disposed of at the Company's landfill sites.  Fees are charged at transfer
stations based on the volume or weight of solid waste deposited, taking into
account the Company's cost of loading, transporting, and disposing of the solid
waste at a landfill.  Intercompany revenues between the Company's collection,
transfer, and landfill operations have been eliminated in the Condensed
Consolidated Financial Statements presented elsewhere herein.

     Operating expenses include direct and indirect labor and the related taxes
and benefits, fuel, maintenance and repairs of equipment and facilities, tipping
fees paid to third party landfills, property taxes, and accruals for future
landfill closure and post-closure costs.  Certain direct landfill development
expenditures are capitalized and amortized over the estimated useful life of a
site as capacity is consumed, and include acquisition, engineering, upgrading,
construction, capitalized interest, and permitting costs.  All indirect
development expenses, such as administrative salaries and general corporate
overhead, are charged to expense in the period incurred.

     General and administrative costs include management salaries, clerical and
administrative costs, professional services, facility rentals, and related
insurance costs, as well as costs related to the Company's marketing and sales
force.

                                       11
<PAGE>

RESULTS OF OPERATIONS

     The following table presents, for the periods indicated, the period to
period change in dollars (in thousands) and percentages for the various
Condensed Consolidated Statement of Operations line items and for certain
supplementary data.

<TABLE>
                                                       Period to Period              Period to Period
                                                        Change for the                Change for the
                                                      Three Months Ended             Six Months Ended
                                                           June 30,                      June 30,
                                                        1998 and 1997                  1998 and 1997
                                                   ----------------------        -----------------------
                                                      $                %            $                 %
                                                   --------          ----        --------           ----
<S>                                                <C>               <C>         <C>                <C>
Statement of Operations:
Operating revenues                                 $225,819          34.4%       $534,775           47.9%
                                                   --------                      --------
Costs and expenses:
     Operating (exclusive of depreciation
       and amortization shown below)                 97,616           28.7        253,790            43.6
     General and administrative                      11,950           16.7         40,189            32.0
     Depreciation and amortization                   24,200           32.1         54,132            41.1
     Merger costs                                     2,042           62.6             46             0.9
                                                   --------                      --------
                                                    135,808           27.7        348,157            41.3
                                                   --------                      --------
Income from operations                               90,011           54.3        186,618            68.4
                                                   --------                      --------
Other income (expense):
     Interest expense                               (27,619)        (109.7)       (49,889)         (120.9)
     Interest and other income, net                   3,211           56.0         33,562           293.5
                                                   --------                      --------
                                                    (24,408)        (125.6)       (16,327)          (54.7)
                                                   --------                      --------
Income before income taxes and
     extraordinary item                              65,603           44.9        170,291            70.0
Provision for income taxes                           25,791           43.8         67,479            68.9
                                                   --------                      --------
Income before extraordinary item                     39,812           45.6        102,812            70.8
Extraordinary item                                   (3,900)        (100.0)        (3,900)         (100.0)
                                                   --------                      --------
Net income                                          $35,912           41.1%      $ 98,918            68.1%
                                                   --------                      --------
                                                   --------                      --------
Supplementary Data:
EBITDA (1)                                         $114,211           47.4 %     $240,750            59.5%
                                                   --------                      --------
                                                   --------                      --------
EBITDA, excluding merger costs (1)                 $116,253           47.6 %     $240,796            58.8%
                                                   --------                      --------
                                                   --------                      --------
</TABLE>
- ---------------
(1)  EBITDA represents income from operations plus depreciation and amortization
     expense.  EBITDA, which is not a measure of financial performance under
     generally accepted accounting principles, is provided because the Company
     understands that such information is used by certain investors when
     analyzing the financial position and performance of the Company.

                                         12
<PAGE>

     The following table presents, for the periods indicated, the percentage
relationship that the various Condensed Consolidated Statements of Operations
line items and certain supplementary data bear to operating revenues:

<TABLE>
                                                  Three Months Ended June 30,    Six Months Ended June 30,
                                                  ---------------------------    -------------------------
                                                      1998           1997          1998             1997
                                                      ----           ----          ----             ----
<S>                                                   <C>            <C>            <C>             <C>
STATEMENT OF OPERATIONS:
Operating revenues
     Collection                                        61.5%          62.9%          62.7%           60.6%
     Transfer                                          12.3           10.0           12.1            10.3
     Disposal                                          23.2           23.7           22.2            24.9
     Other                                              3.0            3.4            3.0             4.2
                                                      -----          -----          -----           -----
                                                      100.0          100.0          100.0           100.0
                                                      -----          -----          -----           -----
Costs and expenses:
     Operating (exclusive of depreciation
     and amortization shown below)                     49.6           51.8           50.6            52.1
     General and administrative                         9.5           11.0           10.0            11.2
     Depreciation and amortization                     11.3           11.5           11.3            11.8
     Merger costs                                       0.6            0.5            0.3             0.5
                                                      -----          -----          -----           -----
                                                       71.0           74.8           72.2            75.6
                                                      -----          -----          -----           -----
Income from operations                                 29.0           25.2           27.8            24.4
                                                      -----          -----          -----           -----
Other income (expense):
     Interest expense                                  (6.0)          (3.8)          (5.5)           (3.7)
     Interest and other income, net                     1.0            0.9            2.7             1.1
                                                      -----          -----          -----           -----
                                                       (5.0)          (2.9)          (2.8)           (2.6)
                                                      -----          -----          -----           -----
Income before income taxes and
     extraordinary item                                24.0           22.3           25.0            21.8
Provision for income taxes                              9.6            9.0           10.0             8.8
                                                      -----          -----          -----           -----
Income before extraordinary item                       14.4           13.3           15.0            13.0
Extraordinary item                                     (0.4)            --           (0.2)             --
                                                      -----          -----          -----           -----
Net income                                             14.0%          13.3%          14.8%           13.0%
                                                      -----          -----          -----           -----
                                                      -----          -----          -----           -----
SUPPLEMENTARY DATA:
EBITDA (1)                                             40.3%          36.7%          39.1%           36.2%
                                                      -----          -----          -----           -----
                                                      -----          -----          -----           -----
EBITDA, excluding merger costs (1)                     40.9%          37.2%          39.4%           36.7%
                                                      -----          -----          -----           -----
                                                      -----          -----          -----           -----
</TABLE>

(1)  EBITDA represents income from operations plus depreciation and amortization
     expense.  EBITDA, which is not a measure of financial performance under
     generally accepted accounting principles, is provided because the Company
     understands that such information is used by certain investors when
     analyzing the financial position and performance of the Company.

                                      13
<PAGE>

RESULTS OF OPERATIONS FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 1998 AND 1997

 OPERATING REVENUES

   For the three and six months ended June 30, 1998, operating revenues
increased $225,819,000, or 34.4%, and $534,775,000, or 47.9%, respectively, as
compared to the corresponding prior year period.  The increase in operating
revenues is primarily attributable to the effects of acquisitions of domestic
and Canadian solid waste businesses and the internal growth of comparable
operations.  Acquisitions during 1998 of solid waste businesses operating in the
United States and the effect of such acquisitions consummated during 1997
accounted for increases in operating revenues of $204,800,000, or 31.2% for the
three months ended June 30, 1998, and $459,600,000, or 41.2% for the six months
ended June 30, 1998.  Acquisitions primarily during 1997 of solid waste
businesses operating in Canada accounted for increases in operating revenues of
$23,900,000, or 3.6% for the three months ended June 30, 1998, and $99,900,000,
or 8.9% for the six months ended June 30, 1998.  Internal growth of comparable
operations resulted in increases in operating revenues of $57,500,000, or 8.8%
for the three months ended June 30, 1998, and $97,700,000, or 8.7% for the six
months ended June 30, 1998.  Internal growth was comprised of 3.1% price and
5.7% volume for the three months ended June 30, 1998, and 3.1% price and 5.6%
volume for the six months ended June 30, 1998.  The foreign currency
translation differences between the U.S. and Canadian dollars had the effect
of decreasing operating revenues by $4,544,000 and $9,319,000 for the three
and six months ended June 30, 1998, respectively.  The remaining decrease in
operating revenues was primarily the result of dispositions during 1997 of
certain non-core businesses and non-strategically located solid waste
operations.

   The Company's one line of business, integrated solid waste management,
encompasses the entire waste stream from collection to transfer station to
landfill.  As a percentage of total operating revenues, the Company's mix
between collection, transfer station, and landfill, reflects an increase in
collection and transfer station operations and a decrease in landfill operations
for the six months ended June 30, 1998, as compared to the corresponding prior
year period.  This change is primarily the result of the Company's
acquisitions of businesses with large collection operations, including the
Canadian solid waste businesses of both Allied Waste Industries, Inc. in March
1997 and WM Holdings in June 1997, the Company's on-going tuck-in acquisition
program, and the Company's efforts to improve its waste internalization
through the acquisition and construction of strategically located transfer
stations.

   As a result of the Company's large investments during 1997 in Canadian solid
waste businesses, operating revenues from foreign operations have increased
significantly as a percentage of total operating revenues from 1997 to 1998. The
following table summarizes for these periods the Company's operating revenues by
geographic area and the percentage relationship of operating revenues by
geographic area to total operating revenues (dollars in thousands):

<TABLE>
                                            Three Months Ended June 30,                    Six Months Ended June 30,
                                    ---------------------------------------------    ---------------------------------------------
                                            1998                     1997                    1998                   1997
                                    --------------------      -------------------    ---------------------   ---------------------
<S>                                 <C>            <C>        <C>          <C>       <C>             <C>     <C>             <C>
United States and Puerto
  Rico                              $771,409       87.5%      $631,948      96.3%    $1,447,964      87.7%   $1,060,999      95.0%
Canada                               110,635       12.5         21,136       3.2        203,520      12.3        49,908       4.5
Mexico                                    --         --          3,141       0.5             --        --         5,802       0.5
                                    --------      -----       --------     -----     ----------     -----    ----------     -----
     Total operating revenues       $882,044      100.0%      $656,225     100.0%    $1,651,484     100.0%   $1,116,709     100.0%
                                    --------      -----       --------     -----     ----------     -----    ----------     -----
                                    --------      -----       --------     -----     ----------     -----    ----------     -----
</TABLE>

 OPERATING COSTS AND EXPENSES (EXCLUSIVE OF DEPRECIATION SHOWN BELOW)

   Operating costs and expenses increased $97,616,000, or 28.7% and
$253,790,000, or 43.6% for the three and six months ended June 30, 1998,
respectively, as compared to the corresponding periods of 1997.  However, as a
percentage of operating revenues, operating costs and expenses decreased from
51.8% to 49.6% for the three months ended June 30, 1997 and 1998, respectively,
and decreased from 52.1% to 50.6% for the six months ended June 30, 1997 and
1998, respectively.  The improvements in the operating margins reflect operating
synergies realized from the Company's tuck-in acquisition program, its merger
with United Waste Systems, Inc. ("United") in August 1997 and the results of the
Company's internal growth for the respective periods.  Additionally, the
improvements in the operating margins reflect cost reductions realized from the
Company's efforts to increase its

                                    14
<PAGE>

utilization of internal disposal capacity, which improved from 49.9% to 56.0%
for the three months ended June 30, 1997 and 1998, respectively, and from
51.7% to 55.5% for the six months ended June 30, 1997 and 1998, respectively.

 GENERAL AND ADMINISTRATIVE

   General and administrative expenses increased $11,950,000, or 16.7% and
$40,189,000, or 43.6% for the three and six months ended June 30, 1998,
respectively, as compared to the respective prior year periods.  However, as a
percentage of operating revenues, general and administrative expenses have
decreased from 11.0% to 9.5% for the three months ended June 30, 1997 and 1998,
respectively, and decreased from 11.2% to 10.0% for the six months ended June
30, 1997 and 1998, respectively.  The decrease in general and administrative
expenses as a percentage of operating revenues is the result of the Company's
ability to integrate acquisitions of solid waste businesses without a
proportionate increase in general and administrative expenses as well as cost
reductions resulting from the Company's merger with United in August 1997.

 DEPRECIATION AND AMORTIZATION

   Depreciation and amortization expense increased $24,200,000, or 32.1% and
$54,132,000, or 41.1% for the three and six months ended June 30, 1998,
respectively, as compared to the corresponding prior year periods.  The increase
is primarily due to the effect of acquisitions of solid waste businesses during
1997 and 1998, and increases landfill volumes from internal growth and higher
internalization.  The average tons per day for the three months ended June 30,
1997 and 1998, increased from 129,500 to 174,300, respectively, and increased
from 115,200 to 159,400 for the six months ended June 30, 1997 and 1998,
respectively.  As a percentage of operating revenues, depreciation and
amortization was consistent for the periods presented.  The incremental
depreciation and amortization due to the improved utilization of internal
disposal capacity was offset by the improved utilization of equipment through
internal growth in collection and disposal operations.

 MERGER COSTS

   In the first and second quarter of 1997, the Company recorded expenses of
$1,996,000 and $3,263,000, respectively, related to the acquisition of solid
waste businesses accounted for under the pooling of interests method of
accounting.  For the three months ended June 30, 1998, the Company recorded
merger related expenses of $5,305,000 for the acquisition of solid waste
businesses accounted for as poolings of interests, including the Company's
merger with TransAmerican Waste Industries, Inc. ("TransAmerican"), which was
consummated in May 1998.

 INCOME FROM OPERATIONS

   Income from operations increased $90,011,000, or 54.3% for the three months
ended June 30, 1998, and increased $186,618,000, or 68.4% for the six months
ended June 30, 1998, as compared to the respective prior year periods due to the
reasons discussed above.  As a percentage of operating revenues, income from
operations, exclusive of merger costs, increased from 25.7% to 29.6% and from
24.9% to 28.1% for the three and six months ended June 30, 1997 and 1998,
respectively.  The improvement is a result of economies of scale realized by the
Company from recent mergers and acquisitions, increased utilization of internal
disposal capacity, and improvements in comparable operations.

 OTHER INCOME AND EXPENSES

   Other income and expenses consists of interest expense, interest income, and
other income.  Interest costs, including amounts capitalized, increased due to
the increases in the Company's outstanding indebtedness.  Interest capitalized
for the three and six months ended June 30, 1998, was $7,955,000 and
$14,261,000, respectively, as compared to $5,814,000 and $11,627,000 for the
three and six months ended June 30, 1997, respectively.  The increase in
capitalized interest is primarily due to development activity at landfills
acquired during 1997 and the first six months of 1998.  Included in other
income for the six months ended June 30, 1998, was $28,124,000 ($16,875,000

                                    15
<PAGE>

after tax or $0.07 per share on a diluted basis), representing the Company's
equity in earnings of a partnership formed in 1997 for the purpose of
acquiring common stock of WM Holdings in the open market.

 PROVISION FOR INCOME TAXES

   The Company recorded a provision for income taxes of $84,738,000 and
$165,380,000 for the three and six months ended June 30, 1998, respectively, and
$58,947,000 and $97,901,000 for the three and six months ended June 30, 1997,
respectively.  The difference in the provision for income taxes at the federal
statutory rate and the recorded amounts for the periods presented is primarily
due to state and local income taxes.

 EXTRAORDINARY ITEM

     During the second quarter of 1998, the Company recorded an extraordinary
loss related to the early retirement of debt.  The outstanding debt of
approximately $40,000,000 that was retired was assumed as part of the merger
with TransAmerican that was consummated in May 1998, and had an average interest
rate of approximately 9.0%.  The extraordinary item, before income taxes, was
comprised of $1,811,000 for prepayment penalties and other fees and $4,689,000
for the write-off of unamortized discount and debt issuance costs.

 NET INCOME

   For the three and six months ended June 30, 1998, respectively, net income
was $123,208,000 and $244,170,000, or $0.52 and $1.04 per share on a diluted
basis as compared to $87,296,000 and $145,258,000, or $0.40 and $0.69 for the
respective prior year periods.  Excluding the extraordinary item and the
Company's equity in earnings of a partnership discussed above, diluted earnings
per share was $0.55 and $1.00 for the three and six months ended June 30, 1998,
respectively.

LIQUIDITY AND CAPITAL RESOURCES

     The Company operates in an industry that requires a high level of capital
investment.  The Company's capital requirements basically stem from (i) its
working capital needs for its ongoing operations, (ii) capital expenditures for
cell construction and expansion of its landfill sites, as well as new trucks and
equipment for its collection operations, and (iii) business acquisitions. The
Company's strategy is to meet these capital needs first from internally
generated funds and secondly from various financing sources available to the
Company, including the incurrence of debt and the issuance of its common stock.
It is further part of the Company's strategy to minimize working capital while
maintaining available commitments under bank credit agreements to fund any
capital needs in excess of internally generated cash flow.

     As of June 30, 1998, the Company had working capital of $200,276,000 (a
ratio of current assets to current liabilities of 1.35:1) and a cash balance of
$44,990,000 which compares to working capital of $86,736,000 (a ratio of current
assets to current liabilities of 1.15:1) and a cash balance of $51,241,000 as of
December 31, 1997.  For the six months ended June 30, 1998, net cash from
operating activities was approximately $49,285,000 and net cash from
financing activities was approximately $1,250,095,000, as compared to
$105,576,000 and $1,231,674,000, respectively, for the corresponding prior
year period.  Net cash from operating activities and financing activities was
primarily used to fund acquisitions of businesses of $1,272,430,000 and
$1,168,677,000 and for capital expenditures of $214,583,000 and
$208,738,000 for the six months ended June 30, 1998 and 1997, respectively.
For the six months ended June 30, 1998, net cash flows from investing
activities included a cash distribution of $131,803,000 from a partnership, of
which the Company owned a 49% interest, that was formed for the purpose of
acquiring common stock of WM Holdings in the open market (see "Recent
Developments").

     In general, the Company's capital expenditures and working capital
requirements have increased reflecting the Company's business strategy of growth
through acquisitions and development projects.  The Company intends to finance
the remainder of its 1998 capital expenditures through internally generated cash
flow and amounts available under its senior revolving credit facility.

                                      16
<PAGE>

SIGNIFICANT FINANCING EVENTS

     On August 7, 1997, the Company entered into a $2,000,000,000 senior
revolving credit facility with a consortium of banks (the "Credit Facility").
The Credit Facility is used for general corporate purposes including borrowings
and standby letters of credit and principal reductions are not required for the
Credit Facility during its five-year term.  The Credit Facility requires a
facility fee not to exceed 0.30% per annum and loans under the Credit Facility
bear interest at a rate based on the Eurodollar rate plus a spread not to exceed
0.575% per annum.  At December 31, 1997, the Company had borrowed $430,000,000
and had issued letters of credit of $467,029,000 under the Credit Facility.  The
applicable interest rate and facility fee at December 31, 1997, was 6.1% and
0.1125% per annum, respectively.

     At June 30, 1998, the Company had borrowed $1,458,000,000 and had issued
letters of credit of $472,786,000 under the Credit Facility.  The applicable
interest rate and facility fee was 5.925% and 0.1125%, respectively, at June 30,
1998.

ACQUISITION ACTIVITY FOR THE SIX MONTHS ENDED JUNE 30, 1998

     On January 14, 1998, the Company acquired the solid waste divisions of City
Management Holding Trust ("City Management") for approximately $810,000,000
consisting of cash paid, and liabilities and debt assumed. The businesses
acquired are primarily located in the state of Michigan and include several
collection operations, landfills, and transfer stations.  This acquisition was
accounted for using the purchase method of accounting.

     On May 6, 1998, the Company consummated a merger with TransAmerican
accounted for as a pooling of interests, pursuant to which the Company issued
approximately 1,975,000 shares of its common stock in exchange for all
outstanding shares of TransAmerican.  Periods reported prior to the
consummation of this transaction were not restated to include the accounts and
operations of TransAmerican as the combined results would not be materially
different from the results as previously presented. The businesses acquired
include five collection operations, nine landfills, and two transfer stations
located throughout the southern United States.

     On June 18, 1998, the Company acquired the solid waste businesses of
American Waste Systems, Inc., for approximately $150,000,000 in cash.  The
businesses acquired include three landfills and one collection operation located
in Ohio.  This acquisition was accounted for using the purchase method of
accounting.

     In addition to the aforementioned acquisitions, during the six months ended
June 30, 1998, the Company acquired 7 landfills, 84 collection businesses, and 8
transfer stations for approximately $411,000,000 in cash, liabilities incurred
and debt assumed, and approximately 1,990,000 shares of the Company's common
stock in business combinations during the six months ended June 30, 1998,
primarily accounted for under the purchase method of accounting.

RECENT DEVELOPMENTS

     On July 16, 1998, the Company consummated the Merger with WM Holdings
accounted for as a pooling of interests.  Under the terms of the agreement, the
Company issued 0.725 of a share of its common stock for each outstanding share
of WM Holdings common stock.  The Merger increased the Company's outstanding
shares of common stock by approximately 354,000,000 shares.  The Combined
Company is a leading international provider of waste management and related
services to governmental, residential, commercial and industrial customers in
the United States and selected international markets.  The corporate
headquarters of the Combined Company is located in Houston, Texas, and John E.
Drury, the Company's Chairman of the Board and Chief Executive Officer, is the
Chief Executive Officer of the Combined Company.  Robert S. Miller, WM
Holding's Chief Executive Officer and Chairman of the Board, has become the
non-executive Chairman of the Board for the Combined Company for a twelve
month term, after

                                      17
<PAGE>

which, Mr. Drury will become the Chairman of the Board and continue as Chief
Executive Officer. Rodney R. Proto, the Company's President and Chief
Operating Officer, and Earl E. DeFrates, the Company's Executive Vice
President and Chief Financial Officer, have been appointed to their
respective positions with the Combined Company. See Part II, Item 5, of this
Form 10-Q for supplemental financial information on the Combined Company.

     On June 29, 1998, WM Holdings announced that it had reached an agreement to
acquire the publicly owned shares of its subsidiary, Waste Management
International plc ("WM International").  Under the agreement, holders of the
approximately 20% of outstanding shares of WM International not currently
owned by the Combined Company will receive 345 pence in cash for each share
held.  The agreement values each WM International American Depository Receipt
("ADR"), each representing two WM International ordinary shares, at
approximately $11.50 based on the exchange rate at the time of the announcement.
As the agreement is priced in pounds sterling, the U.S. dollar value of the
agreement will fluctuate with the pound-dollar exchange rate.  Closing of the
transaction is subject to approval by the WM International minority
shareholders, approval of the English High Court and satisfaction of other
customary items, however, is expected to occur in the fourth quarter of 1998.

     On July 17, 1998, the Company issued $600,000,000 of 7% senior notes, 
due on July 15, 2028 (the "7% Notes") and $600,000,000 of 6-1/8% mandatorily 
tendered senior notes, due on July 15, 2011 (the "6-1/8% Notes"). The 7% 
Notes are redeemable, in whole or in part, at the option of the Company at 
any time and from time to time at the redemption price, as defined.  The 
6-1/8% Notes are subject to certain mandatory tender features as described in 
the indenture. The proceeds from the 7% Notes and 6-1/8% Notes were used to 
repay outstanding indebtedness under the Company's senior revolving credit 
facility.  Interest on the 7% Notes and 6-1/8% Notes is payable semi-annually 
on January 15 and July 15.

     Upon consummation of the Merger, the Combined Company entered into a
syndicated loan facility in the amount of $3,000,000,000, which was an addition
to the Company's existing $2,000,000,000 senior revolving credit facility.  The
syndicated loan facility is renewable annually and provides for a one-year term
option at the Company's request.  The facility is available for the issuance of
commercial paper and borrowings and up to $800,000,000 of standby letters of
credit.  The applicable interest rate, facility fee and covenant restrictions
for the syndicated loan facility are similar to those contained in the Company's
existing senior revolving credit facility which was amended to provide for the
Merger.

   The Company's business plan is to grow through acquisitions as well as
development projects.  The Company has issued equity securities in business
acquisitions and expects to do so in the future.  Furthermore, the Company's
future growth will depend greatly upon its ability to raise additional capital.
The Company continually reviews various financing alternatives and depending
upon market conditions could pursue the sale of debt and/or equity securities to
help effectuate its business strategy.  Management believes that it can arrange
the necessary financing required to accomplish its business plan; however, to
the extent the Company is not successful in its future financing strategies the
Company's growth could be limited.

     On August 4, 1997, the Company filed a shelf registration statement with
the Securities and Exchange Commission to provide for the issuance of up to
20,000,000 shares of the Company's common stock that may be offered and issued
by the Company from time to time in connection with the acquisition directly or
indirectly by the Company of other businesses or properties or interests
therein, and which may be reserved for issuance pursuant to, or offered and
issued upon exercise or conversion of, warrants, options, convertible notes, or
other similar instruments issued by the Company from time to time in connection
with such acquisitions.  As of August 10, 1998, the Company had approximately
15,000,000 shares of its common stock available for future offerings
and issuances under this shelf registration statement.

SEASONALITY AND INFLATION

   The Company's operating revenues tend to be somewhat lower in the winter
months.  This is generally reflected in the Company's first quarter and
fourth quarter operating results.  This is primarily attributable to the fact
that (i) the volume of waste relating to construction and demolition
activities tends to increase in the spring and

                               18
<PAGE>

summer months and (ii) the volume of residential waste in certain regions
where the Company operates tends to decrease during the winter months.

   The Company believes that inflation and changing prices have not had, and are
not expected to have, any material adverse effect on the results of operations
in the near future.

2000 DATE CONVERSION

   In 1997, the Company began to modify its computer information systems to
ensure proper processing of transactions relating to the year 2000 and beyond
and expects to complete the required modifications during 1998. The amount
charged to expense during the three and six months ended June 30, 1998 and 1997,
as well as the amounts anticipated to be charged to expense during the remainder
of 1998 related to the year 2000 computer compliance modifications, have not
been and are not expected to be material to the Company's financial position,
results of operations or cash flows.

NEW ACCOUNTING PRONOUNCEMENTS

     In June 1997, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 131, DISCLOSURES ABOUT SEGMENTS OF AN
ENTERPRISE AND RELATED INFORMATION ("SFAS No. 131").  SFAS No. 131 establishes
standards for reporting information about operating segments in annual financial
statements and requires that those enterprises report selected information about
operating segments in interim financial reports issued to shareholders.  SFAS
No. 131 is effective for fiscal years beginning after December 15, 1997.
Adoption is not required for interim periods in the initial year of application.
Adoption of this statement will not have a material impact on the consolidated
financial statements of the Company.

     In April 1998, the Accounting Standards Executive Committee of the American
Institute of Certified Public Accountants issued Statement of Position 98-5,
ACCOUNTING FOR THE COSTS OF START-UP ACTIVITIES ("SOP 98-5").  SOP 98-5 requires
all costs of start-up activities to be expensed as incurred.  Start-up
activities are defined as those one-time activities related to opening a new
facility, introducing a new product or service, conducting business in a new
territory, conducting business with a new class of customer or beneficiary,
initiating a new process in an existing facility, or commencing some new
operation.  Activities related to mergers or acquisitions are not considered
start-up activities, and therefore SOP 98-5 does not change the accounting for
such items.  SOP 98-5 is effective for financial statements for years beginning
after December 15, 1998.  Management is currently assessing the impact that the
adoption of SOP 98-5 will have on the Company's financial position, results of
operations and cash flows.




                                      19
<PAGE>

PART II.
ITEM 1.  LEGAL PROCEEDINGS.

     As of June 30, 1998, the Company or its subsidiaries has been notified that
they are potentially responsible parties ("PRPs") in connection with eight
locations listed on the Superfund National Priorities List ("NPL").  None of the
eight NPL sites at which claims have been made against the Company are owned by
the Company, and they are at different procedural stages under Superfund.  At
six of the NPL sites, the Company's liability is well defined as a
consequence of a governmental decision as to the appropriate remedy.  At the
others, where investigations have not been completed, remedies not selected or
responsible parties have been unable to reach agreement, the Company's liability
is less certain.  While the Company, based on its status reviews of its PRP
claims, does not currently anticipate that the amount of such liabilities will
have a material adverse effect on the Company's operations, financial condition
or cash flows, the measurement of environmental liabilities is inherently
difficult and the possibility remains that technological, regulatory or
enforcement developments, the results of environmental studies, or other factors
could materially alter this expectation at any time.

     The Company and certain of its subsidiaries are parties to various other
litigation matters arising in the ordinary course of business.  Management
believes that the ultimate resolution of these matters will not have a material
adverse effect on the Company's financial position, results of operations or
cash flows.  In the normal course of its business and as a result of the
extensive government regulation of the solid waste industry, the Company
periodically may become subject to various judicial and administrative
proceedings and investigations involving federal, state, or local agencies.  To
date, the Company has not been required to pay any material fine or judgment for
violation of an environmental law.  From time to time, the Company also may be
subjected to actions brought by citizen's groups in connection with the
permitting of landfills or transfer stations, or alleging violations of the
permits pursuant to which the Company operates.  The Company is also subject
from time to time to claims for personal injury or property damage arising out
of accidents involving its vehicles or other equipment.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

     At the Company's Annual Meeting of Stockholders held on May 19, 1998, a
proposal to elect the nominees listed in the following table as directors of the
Company was submitted to a vote of the Company's stockholders. The following
table also shows the results of voting as to each nominee:

<TABLE>
            Nominee                Votes For   Votes Withheld
            -------                ---------   --------------
            <S>                   <C>             <C>
            Richard D. Kinder     178,647,374     2,974,536
            Larry J. Martin       178,721,692     2,900,218
            Rodney R. Proto       178,673,684     2,948,226
            Alexander W. Rangos   178,557,811     3,064,099
</TABLE>

     At the same meeting, a proposal to approve an increase in the number of
shares available for grant under the Company's 1993 Stock Incentive Plan by
10,000,000 shares was submitted to a vote of the Company's stockholders.  The
proposal was adopted by the stockholders.  The voting was as follows:

<TABLE>
                                                               VOTES
                                               VOTES FOR      AGAINST     ABSTENTIONS
                                               ---------      -------     -----------
<S>                                            <C>            <C>           <C>
Approve increase in shares available for
   grant under the Company's 1993
   Stock Incentive Plan                        173,765,268    6,743,050     1,113,592
</TABLE>

                                          20
<PAGE>

ITEM 5.  OTHER INFORMATION.

     On July 16, 1998, USA Waste Services, Inc. (this registrant) consummated 
a merger transaction with Waste Management, Inc. accounted for as a pooling 
of interests pursuant to which USA Waste Services, Inc. issued 0.725 of a 
share of its common stock for each outstanding share of Waste Management, 
Inc. (the "Merger").  At the effective time of the Merger, Waste Management, 
Inc. changed its name to Waste Management Holdings, Inc. (herein referred to 
as "WM Holdings") and USA Waste Services, Inc. changed its name to Waste 
Management, Inc. (herein referred to as "Waste Management" or the "Company"). 
The following supplemental condensed consolidated balance sheets of Waste 
Management as of June 30, 1998 and December 31, 1997, and the related 
supplemental condensed consolidated statements of operations for the three 
and six months ended June 30, 1998 and 1997 are presented for informational 
purposes.  Generally accepted accounting principles proscribe giving effect 
to a consummated business combination accounted for by the pooling of 
interests method in historical financial statements that do not include the 
date of consummation.  The supplemental unaudited condensed consolidated 
financial statements do not extend through the date of consummation of the 
Merger; however, they will become the historical consolidated financial 
statements of the Company after financial statements covering the date of 
consummation of the Merger are issued.  These financial statements do not 
give effect to any divestitures of business units which are required by the 
antitrust regulatory authorities or to any cost savings which may result from 
the integration of the previously separate operations, nor do such financial 
statements include the nonrecurring costs directly related to the Merger 
which are expected to be included in the Company's operations within the 
twelve months following the Merger.  Such nonrecurring costs have yet to be 
determined, however are expected to be significant.


                                       21
<PAGE>


                               WASTE MANAGEMENT, INC.
                 SUPPLEMENTAL CONDENSED CONSOLIDATED BALANCE SHEETS
                 (In Thousands, Except Share and Par Value Amounts)
                                    (Unaudited)
                                       ASSETS
<TABLE>
                                                                          June 30,                      December 31,
                                                                            1998                            1997
                                                                         -----------                    -----------
<S>                                                                      <C>                            <C>
Current assets:

     Cash and cash equivalents                                           $   268,305                    $   184,052
     Short-term investments                                                    1,462                         59,296
     Accounts receivable, net                                              2,079,857                      1,956,593
     Notes and other receivables                                             104,311                         89,345
     Deferred income taxes                                                    41,924                         52,592
     Costs and estimated earnings in excess of                  
          billings on uncompleted projects                                   134,672                        158,610
     Prepaid expenses and other                                              366,504                        300,404
                                                                         -----------                    -----------
          Total current assets                                             2,997,035                      2,800,892


Notes and other receivables                                                  120,004                        128,105
Property and equipment, net                                               12,127,923                     11,104,440
Excess of cost over net assets of acquired businesses, net                 5,603,141                      4,658,818
Other intangible assets, net                                                 146,052                        118,653
Net assets of continuing businesses held for sale                            142,121                        154,384
Other assets                                                                 863,583                        978,086
                                                                         -----------                    -----------
          Total assets                                                   $21,999,859                    $19,943,378
                                                                         -----------                    -----------
                                                                         -----------                    -----------
                       LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:

     Accounts payable                                                    $   866,099                    $   995,223
     Accrued liabilities                                                   1,853,763                      1,881,085
     Deferred revenues                                                       299,468                        296,996
     Current maturities of long-term debt                                  1,361,643                      1,587,751
                                                                         -----------                    -----------
          Total current liabilities                                        4,380,973                      4,761,055
Long-term debt, less current maturities                                    9,286,271                      7,803,000
Deferred income taxes                                                        552,161                        517,612
Closure, post-closure, and other liabilities                               2,043,188                      1,945,770
                                                                         -----------                    -----------
          Total liabilities                                               16,262,593                     15,027,437
                                                                         -----------                    -----------

Minority interest in subsidiaries                                            740,581                      1,110,681
                                                                         -----------                    -----------
Commitments and contingencies
Stockholders' equity:
     Preferred stock, $.01 par value; 10,000,000
          shares authorized; none issued                                          --                             --
     Common stock, $.01 par value;
          1,500,000,000 shares authorized; 591,309,092
          and 585,454,260 shares issued, respectively                          5,913                          5,855
     Additional paid-in capital                                            4,054,674                      3,828,475
     Retained earnings                                                     2,265,733                      1,933,929
     Accumulated other comprehensive income                                 (336,858)                      (283,193)
     Restricted stock unearned compensation                                   (9,209)                       (11,102)
     Less treasury stock at cost, 14,151,859 and
          34,239,062 shares, respectively                                   (602,545)                    (1,369,329)
     Less employee stock benefit trust at market,
          7,892,612 shares                                                  (381,023)                      (299,375)
                                                                         -----------                    -----------
          Total stockholders' equity                                       4,996,685                      3,805,260
                                                                         -----------                    -----------
          Total liabilities and stockholders' equity                     $21,999,859                    $19,943,378
                                                                         -----------                    -----------
                                                                         -----------                    -----------
</TABLE>
                               See accompanying notes.

                                         22
<PAGE>

                               WASTE MANAGEMENT, INC.
            SUPPLEMENTAL CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                      (In Thousands, Except Per Share Amounts)
                                    (Unaudited)
                                     
<TABLE>
                                                          Three Months Ended June 30,    Six Months Ended June 30,
                                                              1998           1997           1998            1997
                                                           ----------     ----------     ----------      ----------
<S>                                                        <C>            <C>            <C>             <C>
Operating revenues                                         $3,175,177     $2,989,533     $6,076,238      $5,655,002
                                                           ----------     ----------     ----------      ----------
Costs and expenses:
     Operating (exclusive of depreciation and
          amortization shown below)                         1,865,559      1,809,941      3,623,266       3,505,784
     General and administrative                               370,092        328,588        709,831         631,837
     Depreciation and amortization                            381,606        326,238        733,064         630,676
     Merger costs                                               5,305          3,263         11,147           5,259
     Unusual items                                                 --         47,790             --          69,611
(Income) loss from continuing operations
     held for sale, net of minority interest                   (4,986)         4,249         (2,570)          4,130
                                                           ----------     ----------     ----------      ----------
                                                            2,617,576      2,520,069      5,074,738       4,847,297
                                                           ----------     ----------     ----------      ----------
Income from operations                                        557,601        469,464      1,001,500         807,705
                                                           ----------     ----------     ----------      ----------
Other income (expense):
     Interest expense                                        (172,020)      (136,317)      (325,962)       (267,470)
     Minority interest                                        (12,864)       (27,943)       (38,166)        (55,018)
     Interest and other income, net                            47,075        (13,137)       123,507         140,369
                                                           ----------     ----------     ----------      ----------
                                                             (137,809)      (177,397)      (240,621)       (182,119)
                                                           ----------     ----------     ----------      ----------
Income from continuing operations
     before income taxes                                      419,792        292,067        760,879         625,586
Provision for income taxes                                    179,340        156,360        341,155         317,585
                                                           ----------     ----------     ----------      ----------
Income from continuing operations                             240,452        135,707        419,724         308,001
Discontinued operations:
     Income from gain on disposal or from reserve
          adjustment, net of applicable income taxes and
          minority interest of $82,080 and $82,073 for the
          three and six months ended June 30, 1997,
          respectively                                             --          7,561             --           8,208
                                                           ----------     ----------     ----------      ----------
Income before extraordinary item                              240,452        143,268        419,724         316,209
Extraordinary item related to early
     retirement of debt, net of tax benefit of $2,600          (3,900)            --         (3,900)             --
                                                           ----------     ----------     ----------      ----------
Net income                                                 $  236,552     $  143,268     $  415,824      $  316,209
                                                           ----------     ----------     ----------      ----------
                                                           ----------     ----------     ----------      ----------
Basic earnings per common share:
     Continuing operations                                 $     0.43     $     0.25     $     0.76      $     0.57
     Discontinued operations                                       --           0.01             --            0.01
     Extraordinary item                                         (0.01)            --          (0.01)             --
                                                           ----------     ----------     ----------      ----------
     Net income                                            $     0.42     $     0.26     $     0.75      $     0.58
                                                           ----------     ----------     ----------      ----------
                                                           ----------     ----------     ----------      ----------
Diluted earnings per common share:
     Continuing operations                                 $     0.42     $     0.25     $     0.74      $     0.56
     Discontinued operations                                       --           0.01             --            0.01
     Extraordinary item                                         (0.01)            --          (0.01)             --
                                                           ----------     ----------     ----------      ----------
     Net income                                            $     0.41      $    0.26     $     0.73      $     0.57
                                                           ----------     ----------     ----------      ----------
                                                           ----------     ----------     ----------      ----------
</TABLE>

                                    See accompanying notes.

                                               23
<PAGE>

                               WASTE MANAGEMENT, INC.
                    NOTES TO SUPPLEMENTAL CONDENSED CONSOLIDATED
                                FINANCIAL STATEMENTS

1.  BASIS OF PRESENTATION

     The supplemental condensed consolidated financial statements present the
issuance of the Company's common stock in exchange for all outstanding shares of
WM Holdings common stock, and the Merger accounted for using the pooling of
interests method of accounting pursuant to Opinion No. 16 of the Accounting
Principles Board.  The pooling of interests method of accounting assumes that
the combining companies have been merged since their inception, and the
historical financial statements for periods prior to consummation of the
Merger are restated as though the companies have been combined from their
inception.

     These financial statements do not give effect to any divestitures of
business units which are required by the antitrust regulatory authorities or to
any cost savings which may result from the integration of the previously
separate operations, nor do such financial statements include the nonrecurring
costs directly related to the Merger which are expected to be included in the
Company's operations within the twelve months following the Merger. Such
nonrecurring costs have yet to be determined, however are expected to be
significant.

     Certain reclassifications have been made to the Company's and WM 
Holding's historical financial statements for purposes of the supplemental 
presentation.  Such reclassifications are not material to the supplemental 
condensed consolidated financial statements.

2.   Supplemental Adjustments

Adjustments to the supplemental condensed consolidated financial statements were
as follows:

     -    In June 1997, WM Holdings sold a majority of its Canadian solid waste
          businesses to the Company and, as a result of such sale, recorded a
          pre-tax gain of approximately $61,331,000.  The Company accounted for
          this transaction as a purchase business combination and allocated the
          purchase price to the assets acquired and liabilities assumed
          accordingly.  Assuming that the Company and WM Holdings had been
          combined since their inception, the gain recorded by WM Holdings in
          1997 has been eliminated and the basis recorded by the Company for
          assets acquired and liabilities assumed has been restored to WM
          Holding's historical book value.  In addition, the Supplemental
          Condensed Consolidated Statement of Operations for the three and six
          months ended June 30, 1998 and 1997 have been adjusted for the effect
          of lower amortization as a result of restoring the book basis of the
          assets acquired and liabilities assumed by the Company to the
          historical book value of WM Holdings.

     -    Adjustments have been made to conform the accounting for certain
          landfill related issues as if the Company and WM Holdings had been
          combined since their inception.

     -    In November 1997, the Company purchased a 49% limited partner interest
          in a limited partnership, which was formed for the purpose of
          acquiring shares of WM Holdings common stock on the open market (prior
          to the Merger).  The limited partnership purchased shares of WM
          Holdings common stock during November 1997 and sold substantially all
          of such shares in March 1998.  For the six months ended June 30, 1998,
          the Company recorded other income of $28,124,000 for its equity in the
          earnings of the limited partnership.  An adjustment has been made to
          reverse the Company's equity in the earnings of the limited
          partnership to account for the transaction as if the companies had
          been combined since their inception.

     -    The stockholders' equity accounts have been adjusted to reflect the
          assumed issuance of 367,648,786 and 367,648,780 shares of the
          Company's common stock as of December 31, 1997 and June 30, 1998,
          respectively, for the 507,101,774 and 507,101,766 shares of WM
          Holding's common stock issued as of December 31, 1997 and June 30,
          1998, respectively, based on an exchange ratio of 0.725 of a share of
          the Company's common stock for each share of WM Holdings common

                                        24
<PAGE>

          stock.  As the WM Holdings treasury stock was cancelled upon the
          effective time of the merger, the actual number of shares of the
          Company's common stock to be issued pursuant to the Merger were based
          upon the number of shares of WM Holdings common stock issued and
          outstanding immediately prior to the consummation of the Merger.

     -    Adjustments have been made to reclassify WM Holding's depreciation and
          amortization from operating expenses and general and administrative
          expenses to a separate line item to conform to the presentation of the
          Company.

     -    Supplemental basic earnings per common share for each period are based
          on the combined weighted average number of common shares outstanding,
          after giving effect to the issuance of 0.725 of a share of the
          Company's common stock for each share of WM Holdings Common Stock.
          Supplemental diluted earnings per common share for each period are
          based on the combined weighted average number of common and dilutive
          potential common shares outstanding, after giving effect to the
          issuance of 0.725 of a share of the Company's common stock for each
          outstanding share of WM Holdings common stock. The combined weighted
          average shares outstanding used in the supplemental basic and diluted
          earnings per share calculations are net of the shares of WM Holdings
          common stock that are held by WM Holdings' employee stock benefit
          trust and are treated similar to treasury shares for earnings per
          share calculation purposes.  The supplemental diluted earnings per
          share for the three months ended June 30, 1998 and 1997 have been
          calculated assuming conversion of certain convertible debt, and
          therefore interest (net of taxes) of approximately $7,600,000 and
          approximately $7,600,000, respectively, has been added back to income
          from continuing operations for this calculation.  The supplemental
          diluted earnings per share for the six months ended June 30, 1998 and
          1997 have been calculated assessing conversion of certain convertible
          debt, and therefore, interest (net of taxes) of approximately
          $15,100,000 and approximately $13,700,000, respectively, has been
          added back to income from continuing operations for this calculation.

                                            25
<PAGE>

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K.

 (a) EXHIBITS:

<TABLE>
  Exhibit No.*                        Description
  ------------                        -----------
<S>            <C>
     10.1      Amended and Restated Revolving Credit Agreement dated as of
               August 7, 1997, among the Registrant, Bank of America National
               Trust and Savings Association, Morgan Guaranty Trust Company of
               New York and other financial institutions [Incorporated by
               reference to Exhibit 10.1 of the Registrant's Current Report on
               Form 8-K dated August 26, 1997].

     10.2      First Amendment dated as of March 6, 1998, to Amended and
               Restated Revolving Credit Agreement, among the Registrant, Bank
               of America National Trust and Savings Association, Morgan
               Guaranty Trust Company of New York and other financial
               institutions [Incorporated by reference to Exhibit 10.2 of the
               Registrant's Quarterly Report on Form 10-Q for the quarterly
               period ended March 31, 1998].

     10.3      Second Amendment dated as of July 16, 1998, to Amended and
               Restated Revolving Credit Agreement, among the Registrant, Bank
               of America National Trust and Savings Association, Morgan
               Guaranty Trust Company of New York and other financial
               institutions.

     10.4      Loan Agreement dated as of July 16, 1998, among the Registrant,
               Bank of America National Trust and Savings Association, Chase
               Bank of Texas, N.A., Deutsche Bank AG, New York Branch, Morgan
               Guaranty Trust Company of New York and other financial
               institutions.

     10.5      1993 Stock Incentive Plan, as Amended and Restated.

       12      Computation of Ratio of Earnings to Fixed Charges.

       27      Financial Data Schedule.
</TABLE>
       ---------------
       *       In the case of incorporation by reference to documents filed
               under the Securities and Exchange Act of 1934, the Registrant's
               file number under that Act is 1-12154.

 (b) REPORTS ON FORM 8-K:

     No reports on Form 8-K were filed by the Company during the second quarter
of 1998.

                                         26
<PAGE>

                                SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.





                                  WASTE MANAGEMENT, INC.

                                  By: /s/ EARL E. DEFRATES
                                      -----------------------------
                                  Earl E. DeFrates,
                                  Executive Vice President and
                                  Chief Financial Officer
                                  (Principal Financial Officer)

                                  By: /s/ BRUCE E. SNYDER
                                      -----------------------------
                                  Bruce E. Snyder,
                                  Vice President and
                                  Chief Accounting Officer
                                  (Principal Accounting Officer)

Date:     August 28, 1998

                                     27
<PAGE>

                                 INDEX TO EXHIBITS

<TABLE>
 Exhibit No.*                       Description
 ------------                       -----------
<S>            <C>
     10.1      Amended and Restated Revolving Credit Agreement dated as of
               August 7, 1997, among the Registrant, Bank of America National
               Trust and Savings Association, Morgan Guaranty Trust Company of
               New York and other financial institutions [Incorporated by
               reference to Exhibit 10.1 of the Registrant's Current Report on
               Form 8-K dated August 26, 1997].

     10.2      First Amendment dated as of March 6, 1998, to Amended and
               Restated Revolving Credit Agreement, among the Registrant, Bank
               of America National Trust and Savings Association, Morgan
               Guaranty Trust Company of New York and other financial
               institutions [Incorporated by reference to Exhibit 10.2 of the
               Registrant's Quarterly Report on Form 10-Q for the quarterly
               period ended March 31, 1998].

     10.3      Second Amendment dated as of July 16, 1998, to Amended and
               Restated Revolving Credit Agreement, among the Registrant, Bank
               of America National Trust and Savings Association, Morgan
               Guaranty Trust Company of New York and other financial
               institutions.

     10.4      Loan Agreement dated as of July 16, 1998, among the Registrant,
               Bank of America National Trust and Savings Association, Chase
               Bank of Texas, N.A., Deutsche Bank AG, New York Branch, Morgan
               Guaranty Trust Company of New York and other financial
               institutions.

     10.5      1993 Stock Incentive Plan, as Amended and Restated.

     12        Computation of Ratio of Earnings to Fixed Charges.

     27        Financial Data Schedule.
</TABLE>
     ---------------
     *         In the case of incorporation by reference to documents filed
               under the Securities and Exchange Act of 1934, the Registrant's
               file number under that Act is 1-12154.


<PAGE>

                            SECOND AMENDED AND RESTATED
                             REVOLVING CREDIT AGREEMENT
                                          
                             DATED AS OF JULY 16, 1998
                                          
                                    by and among
                                          
                              USA WASTE SERVICES, INC.
                                          
                                  (the "Borrower")
                                          
                                          
                                        and
                                          
                                   THE GUARANTORS
                                          
                                        and
                                          
               BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION
                                      ("BOA")
                     MORGAN GUARANTY TRUST COMPANY OF NEW YORK
                                      ("MGT")
                                          
                 AND THE OTHER FINANCIAL INSTITUTIONS WHICH BECOME
                             A PARTY TO THIS AGREEMENT 
                                          
                            (Collectively, the "Banks")
                                          
                                        and
                                          
                MGT AS ADMINISTRATIVE AGENT AND DOCUMENTATION AGENT
                                          
                            (the "Administrative Agent")


<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<S>                                                                                             <C>
Section 1.  DEFINITIONS AND RULES OF INTERPRETATION. . . . . . . . . . . . . . . . . . . . . . . .2
    Section 1.1.  DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
    Section 1.2.  RULES OF INTERPRETATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Section 2.  THE LOAN FACILITIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
    Section 2.1.  COMMITMENT TO LEND.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
    Section 2.2.  FACILITY FEE; UTILIZATION FEE. . . . . . . . . . . . . . . . . . . . . . . . . .18
    Section 2.3.  REDUCTION OF TOTAL COMMITMENT. . . . . . . . . . . . . . . . . . . . . . . . . .18
    Section 2.4.  THE SYNDICATED NOTES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
    Section 2.5.  INTEREST ON LOANS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
    Section 2.6.  REQUESTS FOR SYNDICATED LOANS. . . . . . . . . . . . . . . . . . . . . . . . . .19
    Section 2.7.  ELECTION OF EURODOLLAR RATE; NOTICE OF ELECTION; INTEREST PERIODS; 
     MINIMUM AMOUNTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
    Section 2.8.  FUNDS FOR SYNDICATED LOANS.. . . . . . . . . . . . . . . . . . . . . . . . . . .21
    Section 2.9.  MATURITY OF THE LOANS AND REIMBURSEMENT OBLIGATIONS. . . . . . . . . . . . . . .21
    Section 2.10.  OPTIONAL PREPAYMENTS OR REPAYMENTS OF LOANS.. . . . . . . . . . . . . . . . . .22
    Section 2.11.  SWING LINE LOANS; SETTLEMENTS.. . . . . . . . . . . . . . . . . . . . . . . . .22
Section 3.  LETTERS OF CREDIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
    Section 3.1.  LETTER OF CREDIT COMMITMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . .24
    Section 3.2.  REIMBURSEMENT OBLIGATION OF THE BORROWER.. . . . . . . . . . . . . . . . . . . .25
    Section 3.3.  OBLIGATIONS ABSOLUTE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
    Section 3.4.  RELIANCE BY THE ISSUING BANKS. . . . . . . . . . . . . . . . . . . . . . . . . .26
    Section 3.5.  NOTICE REGARDING LETTERS OF CREDIT.. . . . . . . . . . . . . . . . . . . . . . .26
    Section 3.6.  LETTER OF CREDIT FEE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Section 4.  COMPETITIVE BID LOANS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
    Section 4.1.  THE COMPETITIVE BID OPTION.. . . . . . . . . . . . . . . . . . . . . . . . . . .26
    Section 4.2.  COMPETITIVE BID LOAN ACCOUNTS:  COMPETITIVE BID NOTES. . . . . . . . . . . . . .26
    Section 4.3.  COMPETITIVE BID QUOTE REQUEST; INVITATION FOR COMPETITIVE BID QUOTES.. . . . . .27
    Section 4.4.  ALTERNATIVE MANNER OF PROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . .28
    Section 4.5.  SUBMISSION AND CONTENTS OF COMPETITIVE BID QUOTES. . . . . . . . . . . . . . . .28
    Section 4.6.  NOTICE TO BORROWER.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
    Section 4.7.  ACCEPTANCE AND NOTICE BY BORROWER AND ADMINISTRATIVE AGENT.. . . . . . . . . . .30
    Section 4.8.  ALLOCATION BY ADMINISTRATIVE AGENT.. . . . . . . . . . . . . . . . . . . . . . .30
    Section 4.9.  FUNDING OF COMPETITIVE BID LOANS.. . . . . . . . . . . . . . . . . . . . . . . .31
    Section 4.10.  FUNDING LOSSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
    Section 4.11.  REPAYMENT OF COMPETITIVE BID LOANS; INTEREST. . . . . . . . . . . . . . . . . .31
Section 5.  PROVISIONS RELATING TO ALL LOANS AND LETTERS OF CREDIT.. . . . . . . . . . . . . . . .31
    Section 5.1.  PAYMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
    Section 5.2.  MANDATORY REPAYMENTS OF THE LOANS. . . . . . . . . . . . . . . . . . . . . . . .33
    Section 5.3.  COMPUTATIONS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
    Section 5.4.  ILLEGALITY; INABILITY TO DETERMINE EURODOLLAR RATE.. . . . . . . . . . . . . . .34
    Section 5.5.  ADDITIONAL COSTS, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
    Section 5.6.  CAPITAL ADEQUACY.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

                                       -ii-

<PAGE>

    Section 5.7.  CERTIFICATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
    Section 5.8.  EURODOLLAR AND COMPETITIVE BID INDEMNITY.. . . . . . . . . . . . . . . . . . . .36
    Section 5.9.  INTEREST ON OVERDUE AMOUNTS. . . . . . . . . . . . . . . . . . . . . . . . . . .36
    Section 5.10.  INTEREST LIMITATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
    Section 5.11.  REASONABLE EFFORTS TO MITIGATE. . . . . . . . . . . . . . . . . . . . . . . . .37
    Section 5.12.  REPLACEMENT OF BANKS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
    Section 5.13.  ADVANCES BY ADMINISTRATIVE AGENT. . . . . . . . . . . . . . . . . . . . . . . .38
Section 6.  REPRESENTATIONS AND WARRANTIES.. . . . . . . . . . . . . . . . . . . . . . . . . . . .38
    Section 6.1.  CORPORATE AUTHORITY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
    Section 6.2.  GOVERNMENTAL APPROVALS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
    Section 6.3.  TITLE TO PROPERTIES; LEASES. . . . . . . . . . . . . . . . . . . . . . . . . . .39
    Section 6.4.  FINANCIAL STATEMENTS; SOLVENCY.. . . . . . . . . . . . . . . . . . . . . . . . .40
    Section 6.5.  NO MATERIAL CHANGES, ETC.. . . . . . . . . . . . . . . . . . . . . . . . . . . .40
    Section 6.6.  FRANCHISES, PATENTS, COPYRIGHTS, ETC.. . . . . . . . . . . . . . . . . . . . . .41
    Section 6.7.  LITIGATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
    Section 6.8.  NO MATERIALLY ADVERSE CONTRACTS, ETC.. . . . . . . . . . . . . . . . . . . . . .41
    Section 6.9.  COMPLIANCE WITH OTHER INSTRUMENTS, LAWS, ETC.. . . . . . . . . . . . . . . . . .41
    Section 6.10.  TAX STATUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
    Section 6.11.  NO EVENT OF DEFAULT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
    Section 6.12.  HOLDING COMPANY AND INVESTMENT COMPANY ACTS.. . . . . . . . . . . . . . . . . .42
    Section 6.13.  ABSENCE OF FINANCING STATEMENTS, ETC. . . . . . . . . . . . . . . . . . . . . .42
    Section 6.14.  EMPLOYEE BENEFIT PLANS. . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
         Section 6.14.1.  IN GENERAL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
         Section 6.14.2.  TERMINABILITY OF WELFARE PLANS.. . . . . . . . . . . . . . . . . . . . .42
         Section 6.14.3.  GUARANTEED PENSION PLANS.. . . . . . . . . . . . . . . . . . . . . . . .43
         Section 6.14.4.  MULTIEMPLOYER PLANS. . . . . . . . . . . . . . . . . . . . . . . . . . .43
    Section 6.15.  ENVIRONMENTAL COMPLIANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . .43
    Section 6.16.  TRUE COPIES OF CHARTER AND OTHER DOCUMENTS. . . . . . . . . . . . . . . . . . .45
    Section 6.17.  DISCLOSURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
    Section 6.18.  PERMITS AND GOVERNMENTAL AUTHORITY. . . . . . . . . . . . . . . . . . . . . . .45
Section 7.  AFFIRMATIVE COVENANTS OF THE BORROWER. . . . . . . . . . . . . . . . . . . . . . . . .46
    Section 7.1.  PUNCTUAL PAYMENT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
    Section 7.2.  MAINTENANCE OF U.S. OFFICE.. . . . . . . . . . . . . . . . . . . . . . . . . . .46
    Section 7.3.  RECORDS AND ACCOUNTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
    Section 7.4.  FINANCIAL STATEMENTS, CERTIFICATES AND INFORMATION.. . . . . . . . . . . . . . .46
    Section 7.5.  CORPORATE EXISTENCE AND CONDUCT OF BUSINESS. . . . . . . . . . . . . . . . . . .47
    Section 7.6.  MAINTENANCE OF PROPERTIES. . . . . . . . . . . . . . . . . . . . . . . . . . . .48
    Section 7.7.  INSURANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
    Section 7.8.  TAXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
    Section 7.9.  INSPECTION OF PROPERTIES, BOOKS AND CONTRACTS. . . . . . . . . . . . . . . . . .49
    Section 7.10.  COMPLIANCE WITH LAWS, CONTRACTS, LICENSES AND PERMITS; MAINTENANCE OF 
    MATERIAL LICENSES AND PERMITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
    Section 7.11.  ENVIRONMENTAL INDEMNIFICATION.. . . . . . . . . . . . . . . . . . . . . . . . .49
    Section 7.12.  FURTHER ASSURANCES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
    Section 7.13.  NOTICE OF POTENTIAL CLAIMS OR LITIGATION. . . . . . . . . . . . . . . . . . . .50

                                       -iii-

<PAGE>

    Section 7.14.  NOTICE OF CERTAIN EVENTS CONCERNING INSURANCE AND ENVIRONMENTAL CLAIMS. . . . .50
    Section 7.15.  NOTICE OF DEFAULT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
    Section 7.16.  USE OF PROCEEDS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
    Section 7.17.  CERTAIN TRANSACTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Section 8.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER.. . . . . . . . . . . . . . . . . . . . . .52
    Section 8.1.  RESTRICTIONS ON INDEBTEDNESS.. . . . . . . . . . . . . . . . . . . . . . . . . .52
    Section 8.2.  RESTRICTIONS ON LIENS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
    Section 8.3.  RESTRICTIONS ON INVESTMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . .54
    Section 8.4.  MERGERS, CONSOLIDATIONS, SALES.. . . . . . . . . . . . . . . . . . . . . . . . .55
    Section 8.5.  RESTRICTED DISTRIBUTIONS AND REDEMPTIONS.. . . . . . . . . . . . . . . . . . . .56
    Section 8.6.  EMPLOYEE BENEFIT PLANS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Section 9.  FINANCIAL COVENANTS OF THE BORROWER. . . . . . . . . . . . . . . . . . . . . . . . . .57
    Section 9.1.  INTEREST COVERAGE RATIO. . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
    Section 9.2.  TOTAL DEBT TO EBITDA.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Section 10.  CONDITIONS PRECEDENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
    Section 10.1.  CONDITIONS TO EFFECTIVENESS.. . . . . . . . . . . . . . . . . . . . . . . . . .57
         Section 10.1.1.  CORPORATE ACTION.. . . . . . . . . . . . . . . . . . . . . . . . . . . .58
         Section 10.1.2.  LOAN DOCUMENTS, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . .58
         Section 10.1.3.  CERTIFIED COPIES OF CHARTER DOCUMENTS. . . . . . . . . . . . . . . . . .58
         Section 10.1.4.  INCUMBENCY CERTIFICATE.. . . . . . . . . . . . . . . . . . . . . . . . .58
         Section 10.1.5.  CERTIFICATES OF INSURANCE. . . . . . . . . . . . . . . . . . . . . . . .58
         Section 10.1.6.  OPINIONS OF COUNSEL. . . . . . . . . . . . . . . . . . . . . . . . . . .58
         Section 10.1.7.  EXISTING DEBT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
         Section 10.1.8.  SATISFACTORY FINANCIAL CONDITION.. . . . . . . . . . . . . . . . . . . .59
         Section 10.1.9.  PAYMENT OF AMENDMENT FEES. . . . . . . . . . . . . . . . . . . . . . . .59
         Section 10.1.10.  WMI MERGER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
         [Section 10.1.11.  LIEN SEARCH RESULTS. . . . . . . . . . . . . . . . . . . . . . . . . .59
    Section 10.2.  NOTICE OF EFFECTIVE DATE. . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Section 11.  CONDITIONS TO ALL LOANS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
    Section 11.1.  REPRESENTATIONS TRUE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
    Section 11.2.  PERFORMANCE; NO EVENT OF DEFAULT. . . . . . . . . . . . . . . . . . . . . . . .59
    Section 11.3.  NO LEGAL IMPEDIMENT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
    Section 11.4.  GOVERNMENTAL REGULATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . .60
    Section 11.5.  PROCEEDINGS AND DOCUMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . .60
Section 12.  EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENT. . . . . . . . . . . . . .60
    Section 12.1.  EVENTS OF DEFAULT AND ACCELERATION. . . . . . . . . . . . . . . . . . . . . . .60
    Section 12.2.  TERMINATION OF COMMITMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . .63
    Section 12.3.  REMEDIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Section 13.  SETOFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Section 14.  EXPENSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Section 15.  THE ADMINISTRATIVE AGENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
    Section 15.1.  APPOINTMENT, POWERS AND IMMUNITIES. . . . . . . . . . . . . . . . . . . . . . .64
    Section 15.2.  ACTIONS BY ADMINISTRATIVE AGENT.. . . . . . . . . . . . . . . . . . . . . . . .64

                                       -iv-

<PAGE>

    Section 15.3.  INDEMNIFICATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
    Section 15.4.  REIMBURSEMENT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
    Section 15.5.  DOCUMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
    Section 15.6.  NON-RELIANCE ON ADMINISTRATIVE AGENT AND OTHER BANKS. . . . . . . . . . . . . .66
    Section 15.7.  RESIGNATION OF ADMINISTRATIVE AGENT.. . . . . . . . . . . . . . . . . . . . . .66
    Section 15.8.  ACTION BY THE BANKS, CONSENTS, AMENDMENTS, WAIVERS, ETC.. . . . . . . . . . . .67
Section 16.  INDEMNIFICATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Section 17.  WITHHOLDING TAXES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Section 18.  TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION.. . . . . . . . . . . . . . . . . . . .69
    Section 18.1.  SHARING OF INFORMATION WITH SECTION 20 SUBSIDIARY.. . . . . . . . . . . . . . .69
    Section 18.2.  CONFIDENTIALITY.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
    Section 18.3.  PRIOR NOTIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
    Section 18.4.  OTHER.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Section 19.  SURVIVAL OF COVENANTS, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Section 20.  ASSIGNMENT AND PARTICIPATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Section 21.  PARTIES IN INTEREST.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Section 22.  NOTICES, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Section 23.  MISCELLANEOUS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Section 24.  CONSENTS, ETC.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Section 25.  WAIVER OF JURY TRIAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Section 26.  GOVERNING LAW; SUBMISSION TO JURISDICTION.. . . . . . . . . . . . . . . . . . . . . .74
Section 27.  SEVERABILITY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Section 28.  GUARANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
    Section 28.1.  GUARANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
    Section 28.2.  GUARANTY ABSOLUTE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
    Section 28.3.  EFFECTIVENESS; ENFORCEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . .76
    Section 28.4.  WAIVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
    Section 28.5.  EXPENSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
    Section 28.6.  CONCERNING JOINT AND SEVERAL LIABILITY OF THE GUARANTORS. . . . . . . . . . . .77
    Section 28.7.  WAIVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
    Section 28.8.  SUBROGATION; SUBORDINATION. . . . . . . . . . . . . . . . . . . . . . . . . . .79
Section 29.  PARI PASSU TREATMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Section 30.  TRANSITIONAL ARRANGEMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Section 31.  SPECIAL WAIVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Section 32.  FINAL AGREEMENT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

                                       EXHIBITS

      EXHIBIT A        Form of Syndicated Note
      EXHIBIT B        Form of Swing Line Note
      EXHIBIT C        Form of Competitive Bid Note
      EXHIBIT D        Form of Syndicated Loan Request
      EXHIBIT E        Form of Letter of Credit Request
      EXHIBIT F        Form of Compliance Certificate

                                       -v-

<PAGE>

      EXHIBIT G        Form of Assignment and Acceptance
      EXHIBIT H        Form of Competitive Bid Quote Request
      EXHIBIT I        Form of Invitation for Competitive Bid Quotes
      EXHIBIT J        Form of Competitive Bid Quote
      EXHIBIT K        Form of Notice of Acceptance/Rejection of
                            Competitive Bid Quote(s)
      EXHIBIT L        Form of WMI Joinder


                                    SCHEDULES


      SCHEDULE 1       Banks; Commitment Percentages; 
                            Banks' Addresses for Notices
      SCHEDULE 3.1(a)  Existing Letters of Credit
      SCHEDULE 6.7     Litigation
      SCHEDULE 6.15    Environmental Compliance
      SCHEDULE 8.1(e)  Existing Indebtedness of Old WMI
      SCHEDULE 8.2(a)  Existing Liens
      SCHEDULE 8.3     Existing WMInternational Investments
</TABLE>

                                       -vi-

<PAGE>

                             SECOND AMENDED AND RESTATED
                             REVOLVING CREDIT AGREEMENT

     This SECOND AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT is made as 
of the 16th day of July, l998, by and among USA WASTE SERVICES, INC., a 
Delaware corporation having its chief executive office at 1001 Fannin Street, 
Suite 4000, Houston, Texas 77002 (the "Borrower"), the Guarantors, and BANK 
OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION, a national banking 
association having its principal place of business at 231 South LaSalle 
Street Chicago, Illinois 60697 ("BOA"), MORGAN GUARANTY TRUST COMPANY OF NEW 
YORK, a New York state banking association having its principal place of 
business at 60 Wall Street, New York, New York 10260 ("MGT"), and each of the 
other financial institutions party hereto (collectively, the "Banks"), and 
MGT as administrative agent and documentation agent (the "Administrative 
Agent").

                                W I T N E S S E T H:

     WHEREAS, the Borrower, Sanifill, United, BOA, MGT, the Banks, and MGT as 
Administrative and Documentation Agent thereunder (collectively, the 
"Original Parties") are party to that certain Amended and Restated Revolving 
Credit Agreement dated as of August 7, 1997, by and among the Original 
Parties (as amended  by the First Amendment dated as of March 6, l998, the 
"Existing Credit Agreement"); and 

     WHEREAS, the Borrower and Dome have entered into the WMI Merger 
Agreement (as such term is defined below) with Waste Management, Inc. ("Old 
WMI") with respect to the WMI Merger (as such term is defined below);

     WHEREAS, in connection with the WMI Merger, Old WMI will become a wholly 
owned Subsidiary of the Borrower and will change its name to "Waste 
Management Holdings, Inc.", execute a joinder and become a Guarantor 
hereunder, and the Borrower will change its name to "Waste Management, Inc."; 
and

     WHEREAS, the Borrower has requested changes in certain terms and the 
pricing of the Existing Credit Agreement;

     NOW, THEREFORE, in consideration of the foregoing, the mutual covenants 
and agreements set forth herein below, and other good and valuable 
consideration, the receipt and sufficiency of which are hereby acknowledged 
by the parties, on the Effective Date the Existing Credit Agreement shall be 
amended and restated by this Agreement, the terms of which are as follows:

<PAGE>

     SECTION 1.  DEFINITIONS AND RULES OF INTERPRETATION.  

     Section 1.1.  DEFINITIONS.  The following terms shall have the meanings 
set forth in this Section 1 or elsewhere in the provisions of this Agreement 
referred to below:

     ABSOLUTE COMPETITIVE BID LOAN(S).  See Section 4.3(a).

     ACCOUNTANTS.  See Section 7.4(a).

     ADMINISTRATIVE AGENT.  See Preamble.

     AFFECTED BANK.  See Section 5.12.

     AGENTS.  BOA, BancAmerica Securities, Inc. and J.P. Morgan Securities 
Inc.

     AGREEMENT.  This Second Amended and Restated Revolving Credit Agreement, 
including the Schedules and Exhibits hereto, as from time to time amended and 
supplemented in accordance with the terms hereof.

     APPLICABLE CANADIAN PENSION LEGISLATION.  At any time, any pension or 
retirement benefits legislation (be it federal, provincial, territorial, or 
otherwise) then applicable to any of the Canadian Subsidiaries, including the 
Pension Benefits Act (Ontario), the Income Tax Act (Canada), and all 
regulations made thereunder.

     APPLICABLE EURODOLLAR RATE.  The applicable rate per annum of interest 
on the Eurodollar Loans shall be as set forth in the Pricing Table.

     APPLICABLE FACILITY RATE.  The applicable rate per annum with respect to 
the Facility Fee shall be as set forth in the Pricing Table.  

     APPLICABLE L/C RATE.  The applicable rate per annum on the Maximum 
Drawing Amount shall be as set forth in the Pricing Table.  

     APPLICABLE REQUIREMENTS.  See Section 7.10.

     APPLICABLE SWING LINE RATE.  The annual rate of interest agreed upon 
from time to time by MGT and the Borrower with respect to Swing Line Loans.

     ASSIGNMENT AND ACCEPTANCE.  See Section 20.

     AVERAGE QUARTERLY UTILIZATION AMOUNT.  See Section 2.2(b).

     BALANCE SHEET DATE.  December 31, 1997.

     BANKS.  See Preamble.

     BASE RATE.  The higher of (a) the annual rate of interest announced from 
time to time by the Administrative Agent at its Head Office as its "prime 
rate" (it being understood that such rate 

<PAGE>

is a reference rate and not necessarily the lowest rate of interest charged 
by the Administrative Agent), or (b) one percent (1%) above the Overnight 
Federal Funds Effective Rate.

     BASE RATE LOANS.  Syndicated Loans bearing interest calculated by 
reference to the Base Rate.

     BOA.  See Preamble.

     BORROWER.  See Preamble.

     BUSINESS DAY.  Any day, other than a Saturday, Sunday or any day on 
which banking institutions in New York, New York are authorized by law to 
close, and, when used in connection with a Eurodollar Loan, a Eurodollar 
Business Day.

     CAPITALIZED LEASES.  Leases under which the Borrower or any of its 
Subsidiaries is the lessee or obligor, the discounted future rental payment 
obligations under which are required to be capitalized on the balance sheet 
of the lessee or obligor in accordance with GAAP.

     CERCLA.  See Section 6.15(a).

     CERTIFIED OR CERTIFIED.  With respect to the financial statements of any 
Person, such statements as audited by a firm of independent auditors, whose 
report expresses the opinion, without qualification, that such financial 
statements present fairly the financial position of such Person.

     CFO or the CAO.  See Section 7.4(b).

     CODE.  The Internal Revenue Code of 1986, as amended and in effect from 
time to time.

     COMMITMENT.  With respect to each Bank, such Bank's commitment to make 
Syndicated Loans to, and to participate in the issuance, extension and 
renewal of Letters of Credit for the account of, the Borrower, determined by 
multiplying such Bank's Commitment Percentage by the Total Commitment.

     COMMITMENT PERCENTAGE.  With respect to each Bank, the percentage 
initially set forth next to such Bank's name on SCHEDULE 1 hereto, as the 
same may be adjusted in accordance with Section 2.3 and Section 20.

     COMPETITIVE BID LOAN(S).  A borrowing hereunder consisting of one or 
more loans made by any of the participating Banks whose offer to make a 
Competitive Bid Loan as part of such borrowing has been accepted by the 
Borrower under the auction bidding procedure described in Section 4 hereof.

     COMPETITIVE BID LOAN ACCOUNTS.  See Section 4.2(a).

     COMPETITIVE BID MARGIN.  See Section 4.5(b)(iv).

<PAGE>

     COMPETITIVE BID NOTES.  See Section 4.2(b).

     COMPETITIVE BID QUOTE.  An offer by a Bank to make a Competitive Bid 
Loan in accordance with Section 4.5 hereof.

     COMPETITIVE BID QUOTE REQUEST.  See Section 4.3.

     COMPETITIVE BID RATE.  See Section 4.5(b)(v).  

     COMPLIANCE CERTIFICATE.  See Section 7.4(c).

     CONSOLIDATED or CONSOLIDATED.  With reference to any term defined 
herein, shall mean that term as applied to the accounts of the Borrower and 
its Subsidiaries consolidated in accordance with GAAP.

     CONSOLIDATED EARNINGS BEFORE INTEREST AND TAXES, or EBIT.  For any 
period, the Consolidated Net Income (or Deficit) of the Borrower and its 
Subsidiaries on a consolidated basis PLUS the sum of (1) interest expense, 
(2) income taxes (other than income taxes that are a net credit except the 
WMI Merger pooling costs and merger-related expenses in item (3) below), (3) 
up to $1,700,000,000 in pooling costs and merger-related expenses actually 
incurred with respect to the WMI Merger, taken as a special charge in the 
quarter ending September 30, 1998, and (4) up to $200,000,000 in after tax 
charges actually incurred with respect to Old WMI shareholder litigation and 
Securities and Exchange Commission investigations which were pending or 
initiated prior to the Effective Date, taken as a special charge, to the 
extent that each of items (1) through (4) was deducted, without duplication, 
in determining Consolidated Net Income (or Deficit) in the relevant period.

     CONSOLIDATED EARNINGS BEFORE INTEREST, TAXES, DEPRECIATION AND 
AMORTIZATION or EBITDA.  For any period, EBIT PLUS (a) depreciation expense, 
and (b) amortization expense to the extent the same would be included in the 
calculation of Consolidated Net Income for such period, determined in 
accordance with GAAP.

     CONSOLIDATED NET INCOME (or DEFICIT).  The consolidated net income (or 
deficit) of the Borrower and its Subsidiaries on a consolidated basis, after 
deduction of all expenses, taxes, and other proper charges, determined in 
accordance with GAAP.

     CONSOLIDATED NET WORTH.  The sum of the par value of the capital stock 
(excluding treasury stock), capital in excess of par or stated value of 
shares of capital stock, retained earnings (minus accumulated deficit) and 
any other account which, in accordance with GAAP, constitute stockholders' 
equity, of the Borrower and its Subsidiaries determined on a consolidated 
basis, excluding any effect of foreign currency transaction computed pursuant 
to Financial Accounting Standards Board Statement No. 52, as amended, 
supplemented or modified from time to time, or otherwise in accordance with 
GAAP.

     CONSOLIDATED TANGIBLE ASSETS.  Consolidated Total Assets less the sum of:

<PAGE>

          (a)  the total book value of all assets of the Borrower and its 
     Subsidiaries properly classified as intangible assets under generally
     accepted accounting principles, including such items as goodwill, the
     purchase price of acquired assets in excess of the fair market value
     thereof, trademarks, trade names, service marks, customer lists, brand
     names, copyrights, patents and licenses, and rights with respect to the
     foregoing; PLUS

          (b)  all amounts representing any write-up in the book value of any
     assets of the Borrower or its Subsidiaries resulting from a revaluation
     thereof subsequent to the Balance Sheet Date.

     CONSOLIDATED TOTAL ASSETS.  All assets of the Borrower and its 
Subsidiaries determined on a consolidated basis in accordance with GAAP.

     CONSOLIDATED TOTAL INTEREST EXPENSE.  For any period, the aggregate amount
of interest expense required by GAAP to be paid or accrued during such period on
all Indebtedness of the Borrower and its Subsidiaries outstanding during all or
any part of such period, including capitalized interest expense for such period.

     DEFAULTING BANK.  See Section 5.12.

     DEFAULTS.  See Section 12.1.

     DEUTSCHE.  Deutsche Bank AG, New York Branch, the duly licensed New York 
branch of a German corporation having its principal place of business at 31 
West 52nd Street, New York, New York . 10019.

     DISCLOSURE DOCUMENTS.  The Borrower's financial statements referred to 
in Section 6.4 and filings made by the Borrower or Old WMI with the 
Securities and Exchange Commission that were publicly available prior to the 
Effective Date.

     DISPOSAL.  See "Release".

     DISTRIBUTION.  The declaration or payment of any dividend or other 
return on equity on or in respect of any shares of any class of capital 
stock, any partnership interests or any membership interests of any Person, 
other than dividends or other such returns payable solely in shares of common 
stock, partnership interests or membership units of such Person, as the case 
may be; the purchase, redemption, or other retirement of any shares of any 
class of capital stock, partnership interests or membership units of such 
Person, directly or indirectly through a Subsidiary or otherwise; the return 
of equity capital by any Person to its shareholders, partners or members as 
such; or any other distribution on or in respect of any shares of any class 
of capital stock, partnership interest or membership unit of such Person.

     DOLLARS or US$ or $ or U.S. DOLLARS.  Dollars in lawful currency of the 
United States of America.

<PAGE>

     DOME.  Dome Merger Subsidiary, Inc., a Delaware corporation and wholly 
owned Subsidiary of Borrower.

     DRAWDOWN DATE.  The date on which any Loan is made or is to be made, or 
any amount is paid by an Issuing Bank under a Letter of Credit.

     EBIT.  See definition of Consolidated Earnings Before Interest and Taxes.

     EBITDA.  See definition of Consolidated Earnings Before Interest, Taxes, 
Depreciation and Amortization.

     EFFECTIVE DATE.  The date on which the conditions precedent set forth in 
Section 10.1 hereof are satisfied and the Majority Banks consent to this 
Agreement.

     EMPLOYEE BENEFIT PLAN.  Any employee benefit plan within the meaning of 
Section 3(3) of ERISA or Applicable Canadian Pension Legislation maintained 
or contributed to by the Borrower, any of its Subsidiaries, or any ERISA 
Affiliate, other than a Multiemployer Plan.

     ENVIRONMENTAL LAWS.  See Section 6.15(a).

     EPA.  See Section 6.15(b).

     ERISA.  The Employee Retirement Income Security Act of 1974, as amended 
and in effect from time to time.

     ERISA AFFILIATE.  Any Person which is treated as a single employer with 
the Borrower or any of its Subsidiaries under Section 414 of the Code.

     ERISA REPORTABLE EVENT.  A reportable event within the meaning of 
Section 4043 of ERISA and the regulations promulgated thereunder with respect 
to a Guaranteed Pension Plan  as to which the requirement of notice has not 
been waived.

     EUROCURRENCY RESERVE RATE.  For any day with respect to a Eurodollar 
Loan, the maximum rate (expressed as a decimal) at which any lender subject 
thereto would be required to maintain reserves under Regulation D of the 
Board of Governors of the Federal Reserve System (or any successor or similar 
regulations relating to such reserve requirements) against "Eurocurrency 
Liabilities" (as that term is used in Regulation D), if such liabilities were 
outstanding.  The Eurocurrency Reserve Rate shall be adjusted automatically 
on and as of the effective date of any change in the Eurocurrency Reserve 
Rate.

     EURODOLLAR BUSINESS DAY.  Any day on which commercial banks are open for 
international business (including dealings in Dollar deposits) in London or 
such other eurodollar interbank market as may be selected by the 
Administrative Agent in its sole discretion acting in good faith.

     EURODOLLAR INTEREST DETERMINATION DATE.  For any Interest Period, the 
date two Eurodollar Business Days prior to the first day of such Interest 
Period.

<PAGE>

     EURODOLLAR LENDING OFFICE.  Initially, the office of each Bank set forth 
in SCHEDULE 1 hereto; thereafter, upon notice to the Administrative Agent, 
such other office of such Bank that shall be making or maintaining Eurodollar 
Loans.

     EURODOLLAR LOANS.  Syndicated Loans bearing interest calculated by 
reference to the Eurodollar Rate.

     EURODOLLAR RATE.  For any Interest Period with respect to a Eurodollar 
Loan, the rate of interest equal to (i) the arithmetic average of the rates 
per annum for each Reference Bank at which such Reference Bank's Eurodollar 
Lending Office is offered Dollar deposits at approximately 10:00 a.m. (New 
York time) two (2) Eurodollar Business Days prior to the beginning of such 
Interest Period in the interbank eurodollar market where the eurodollar 
operations of such Eurodollar Lending Office are customarily conducted, for 
delivery on the first day of such Interest Period for the number of days 
comprised therein and in an amount comparable to the amount of the Eurodollar 
Rate Loan of such Reference Bank to which such Interest Period applies, 
DIVIDED BY (ii) a number equal to 1.00 minus the Eurocurrency Reserve Rate, 
if applicable (rounded upwards to the nearest 1/16 of one percent).  

     EVENTS OF DEFAULT.  See Section 12.1.

     EXISTING CREDIT AGREEMENT.  See Recitals.

     FACILITY FEE.  See Section 2.2(a).

     generally accepted accounting principles or GAAP.  (i) When used in 
Section 9, whether directly or indirectly through reference to a capitalized 
term used therein, means (A) principles that are consistent with the 
principles promulgated or adopted by the Financial Accounting Standards Board 
and its predecessors, in effect for the fiscal year ended on the Balance 
Sheet Date, and (B) to the extent consistent with such principles, the 
accounting practice of the Borrower reflected in its financial statements for 
the year ended on the Balance Sheet Date, and (ii) when used in general, 
other than as provided above, means principles that are (A) consistent with 
the principles promulgated or adopted by the Financial Accounting Standards 
Board and its predecessors, as in effect from time to time, and (B) 
consistently applied with past financial statements of the Borrower adopting 
the same principles, provided that in each case referred to in this 
definition of "generally accepted accounting principles" a certified public 
accountant would, insofar as the use of such accounting principles is 
pertinent, be in a position to deliver an unqualified opinion (other than a 
qualification regarding changes in generally accepted accounting principles) 
as to financial statements in which such principles have been properly 
applied.

     GUARANTEED OBLIGATIONS.  See Section 28.1.

     GUARANTEED PENSION PLAN.  Any employee pension benefit plan within the 
meaning of Section 3(2) of ERISA maintained or contributed to by the 
Borrower, its Subsidiaries or any ERISA Affiliate the benefits of which are 
guaranteed on termination in full or in part by the PBGC pursuant to Title IV 
of ERISA, other than a Multiemployer Plan.

<PAGE>

     GUARANTOR(S).  Sanifill and United, collectively, until the WMI Joinder 
Date; and thereafter (or until the release of Sanifill, United or both, 
pursuant to Section 28.3 of this Agreement) Sanifill, United and Old WMI.

     HAZARDOUS SUBSTANCES.  See Section 6.15(b).

     HEAD OFFICE.  The Administrative Agent's head office located in New 
York, New York, or at such other location as the Administrative Agent may 
designate from time to time.

     INDEBTEDNESS.  Collectively without duplication, whether classified as 
Indebtedness, an Investment or otherwise on the obligor's balance sheet, (a) 
all indebtedness for borrowed money, (b) all obligations for the deferred 
purchase price of property or services (other than trade payables not overdue 
by more than ninety (90) days incurred in the ordinary course of business), 
(c) all obligations evidenced by notes, bonds, debentures or other similar 
debt instruments, (d) all obligations created or arising under any 
conditional sale or other title retention agreement with respect to property 
acquired (even though the rights and remedies of the seller or lender under 
such agreement in the event of default are limited to repossession or sale of 
such property), (e) all obligations, liabilities and indebtedness under 
Capitalized Leases, (f) all obligations, liabilities or indebtedness 
(contingent or otherwise) under surety, performance bonds or any other 
bonding arrangements, (g) all Indebtedness of others referred to in clauses 
(a) through (f) above which is guaranteed, or in effect guaranteed, directly 
or indirectly in any manner, including through an agreement (A) to pay or 
purchase such Indebtedness or to advance or supply funds for the payment or 
purchase of such Indebtedness, (B) to purchase, sell or lease (as lessee or 
lessor) property, or to purchase or sell services, primarily for the purpose 
of enabling any Person to make payment of such Indebtedness or to assure the 
holder of such Indebtedness against loss, (C) to supply funds to or in any 
other manner invest in any Person (including any agreement to pay for 
property or services irrespective of whether such property is received or 
such services are rendered) or (D) otherwise to assure any Person against 
loss, and (h) all Indebtedness referred to in clauses (a) through (g) above 
secured or supported by (or for which the holder of such Indebtedness has an 
existing right, contingent or otherwise, to be secured or supported by) any 
lien or encumbrance on (or other right of reourse to or against) property 
(including, without limitation, accounts and contract rights), even though 
the owner of the property has not assumed or become liable, contractually or 
otherwise, for the payment of such Indebtedness; PROVIDED THAT if either a 
Permitted Receivables Transaction or a sale of receivables under the WMF 
Agreement is outstanding and is accounted for as a sale of accounts 
receivable under generally accepted accounting principles, Indebtedness 
determined as aforesaid shall be adjusted to include the additional 
Indebtedness, determined on a consolidated basis, which would have been 
outstanding had such Permitted Receivables Transaction been accounted for as 
a borrowing.  The sum of all such Indebtedness of the Borrower and its 
Subsidiaries on a consolidated basis under (a) through (h) above shall be 
referred to as "Total Debt"; PROVIDED, HOWEVER, that Indebtedness under (f) 
above shall be included in such calculation only to the extent that a surety 
has been called upon to make payment on a bond.

<PAGE>

     INELIGIBLE SECURITIES.  Securities which may not be underwritten or 
dealt in by member banks of the Federal Reserve System under Section 16 of 
the Banking Act of 1933 (12 U.S.C. Section 24, Seventh), as amended.

     INTEREST PERIOD.  With respect to each Loan (a) initially, the period 
commencing on the Drawdown Date of such Loan and ending on the last day of 
one of the periods set forth below, as selected by the Borrower in accordance 
with this Agreement (i) for any Base Rate Loan or Swing Line Loan, the first 
day of the month; (ii) for any Eurodollar Loan, 1, 2, 3, or 6 months; (iii) 
for any Absolute Competitive Bid Loan, from 7 through 180 days; and (iv) for 
any LIBOR Competitive Bid Loan, 1, 2, 3, 4, 5, or 6 months; and (b) 
thereafter, each period commencing on the last day of the next preceding 
Interest Period applicable to such Loan and ending on the last day of one of 
the periods set forth above, as selected by the Borrower in accordance with 
this Agreement or if such period has no numerically corresponding day, on the 
last Business Day of such period; PROVIDED that any Interest Period which 
would otherwise end on a day which is not a Business Day shall be deemed to 
end on the next succeeding Business Day; PROVIDED FURTHER that for any 
Interest Period for any Eurodollar Loan or LIBOR Competitive Bid Loan, if 
such next succeeding Business Day falls in the next succeeding calendar 
month, such Interest Period shall be deemed to end on the next preceding 
Business Day; and PROVIDED FURTHER that no Interest Period shall extend 
beyond the Maturity Date.

     INTERIM BALANCE SHEET DATE.  March 31, 1998.

     INVESTMENTS.  All expenditures made by a Person and all liabilities 
incurred (contingently or otherwise) by a Person for the acquisition of stock 
(other than the stock of wholly owned Subsidiaries), pre-payments for use of 
landfill air space in excess of usual and customary industry practice, or 
Indebtedness of, or for loans, advances, capital contributions or transfers 
of property to, or in respect of any guaranties or other commitments as 
described under Indebtedness, or obligations of, any other Person, including 
without limitation, the funding of any captive insurance company (other than 
loans, advances, capital contributions or transfers of property to any wholly 
owned Subsidiaries or guaranties with respect to Indebtedness of wholly owned 
Subsidiaries).  In determining the aggregate amount of Investments 
outstanding at any particular time: (a) the amount of any Investment 
represented by a guaranty shall be taken at not less than the principal 
amount of the obligations guaranteed and still outstanding; (b) there shall 
be included as an Investment all interest accrued with respect to 
Indebtedness constituting an Investment unless and until such interest is 
paid; (c) there shall be deducted in respect of each such Investment any 
amount received as a return of capital (but only by repurchase, redemption, 
retirement, repayment, liquidating dividend or liquidating distribution); (d) 
there shall not be deducted in respect of any Investment any amounts received 
as earnings on such Investment, whether as dividends, interest or otherwise, 
except that accrued interest included as provided in the foregoing clause (b) 
may be deducted when paid; and (e) there shall not be deducted from the 
aggregate amount of Investments any decrease in the value thereof.

     ISSUANCE FEE.  See Section 3.6.

<PAGE>

     ISSUING BANKS.  The Bank(s) issuing Letters of Credit, which shall be 
(a) MGT, BOA, BankBoston, N.A., Chase Bank of Texas, N.A. (f/k/a Texas 
Commerce Bank, National Association) and Fleet Bank, N.A. and (b) such other 
Banks as agreed to by the Borrower and the Administrative Agent; and with 
respect to Old WMI Letters of Credit only, the Transitional Issuing Banks.

     LETTER OF CREDIT APPLICATIONS.  Letter of credit applications in such 
form as may be agreed upon by the Borrower and the Issuing Bank from time to 
time which are entered into pursuant to Section 3 hereof, as such Letter of 
Credit Applications are amended, varied or supplemented from time to time; 
PROVIDED, HOWEVER, in the event of any conflict or inconsistency between the 
terms of any Letter of Credit Application and this Agreement, the terms of 
this Agreement shall control.

     LETTER OF CREDIT FEE.  See Section 3.6.

     LETTER OF CREDIT PARTICIPATION.  See Section 3.1(b).

     LETTERS OF CREDIT.  Standby letters of credit issued or to be issued by 
the Issuing Banks under Section 3 hereof for the account of the Borrower.

     LIBOR COMPETITIVE BID LOAN(S).  See Section 4.3(a).

     LIBOR RATE.  For any Interest Period with respect to a LIBOR Competitive 
Bid Loan, (a) the rate of interest equal to the rate determined by the 
Administrative Agent at which Dollar deposits for such Interest Period are 
offered based on information presented on Telerate Page 3750 as of 11:00 a.m. 
(London time) two (2) Eurodollar Business Days prior to the first day of such 
Interest Period, or (b) if such rate is not shown at such place, the rate of 
interest equal to (i) the arithmetic average of the rates per annum for each 
Reference Bank at which such Reference Bank's Eurodollar Lending Office is 
offered Dollar deposits two (2) Eurodollar Business Days prior to the 
beginning of such Interest Period in the interbank eurodollar market where 
the eurodollar operations of such Eurodollar Lending Office are customarily 
conducted, for delivery on the first day of such Interest Period for the 
number of days comprised therein and in an amount comparable to the amount of 
the Eurodollar Loan of such Reference Bank to which such Interest Period 
applies, DIVIDED BY (ii) a number equal to 1.00 minus the Eurocurrency 
Reserve Rate, if applicable (rounded upwards to the nearest 1/16 of one 
percent).

     LOAN DOCUMENTS.  This Agreement, the Notes, the Letter of Credit 
Applications, the Letters of Credit, the WMI Joinder and any documents, 
instruments or agreements executed in connection with any of the foregoing, 
each as amended, modified, supplemented, or replaced from time to time.

     LOANS.  Collectively, the Syndicated Loans, the Swing Line Loans and the 
Competitive Bid Loans.

     MAJORITY BANKS.  The Banks with fifty-one percent (51%) of the Total 
Commitment; PROVIDED THAT in the event that the Total Commitment has been 
terminated, the Majority Banks 

<PAGE>

shall be the Banks holding fifty-one percent (51%) of the aggregate 
outstanding principal amount of the Obligations on such date.

     MATERIAL SUBSIDIARY.  Any Subsidiary which, at the time such 
determination is made, (a) has assets, revenues, or liabilities equal to at 
least $20,000,000, or (b) is the holder of or the applicant for a permit to 
operate a solid waste facility pursuant to RCRA or any analogous state law.

     MATURITY DATE.  August 7, 2002.

     MAXIMUM DRAWING AMOUNT.  The maximum aggregate amount from time to time 
that the beneficiaries may draw under outstanding Letters of Credit.

     MGT.  See Preamble.

     MOODY'S.  Moody's Investors Service, Inc.

     MULTIEMPLOYER PLAN.  Any multiemployer plan within the meaning of 
Section 3(37) of ERISA maintained or contributed to by the Borrower, any of 
its Subsidiaries, or any ERISA Affiliate.

     NEW LENDING OFFICE.  See Section 5.1(c).

     NON-U.S. BANK.  See Section 5.1(b).

     NOTES.  Collectively, the Competitive Bid Notes, the Syndicated Notes, 
and the Swing Line Note.

     OBLIGATIONS.  All indebtedness, obligations and liabilities of the 
Borrower to any of the Banks and the Administrative Agent arising or incurred 
under this Agreement or any of the other Loan Documents or in respect of any 
of the Loans made or Reimbursement Obligations incurred or the Letters of 
Credit, the Notes, or any other instrument at any time evidencing any thereof 
individually or collectively, existing on the date of this Agreement or 
arising thereafter, direct or indirect, joint or several, absolute or 
contingent, matured or unmatured, liquidated or unliquidated, secured or 
unsecured, arising by contract, operation of law or otherwise. 

     OLD WMI.  See Recitals.

     ORIGINAL CLOSING DATE.  August 7, l997.

     ORIGINAL PARTIES.  See Recitals.

     OVERNIGHT FEDERAL FUNDS EFFECTIVE RATE.  The overnight federal funds 
effective rate as published by the Board of Governors of the Federal Reserve 
System, as in effect from time to time, or if such rate is not published, the 
average of the quotations at approximately 11:00 a.m. New York time for the 
day of such transaction(s), received by the Administrative Agent from three 
Federal Funds brokers of recognized standing selected by the Administrative 
Agent.

<PAGE>

     PBGC.  The Pension Benefit Guaranty Corporation created by Section 4002 
of ERISA and any successor entity or entities having similar responsibilities.

     PERMITTED LIENS.  See Section 8.2.

     PERMITTED RECEIVABLES TRANSACTION.  Any sale or sales of, and/or 
securitization of, any accounts receivable of the Borrower and/or any of its 
Subsidiaries (the "Receivables") pursuant to which (a) the Borrower and its 
Subsidiaries realize aggregate net proceeds of not more than $250,000,000 at 
any one time outstanding, including, without limitation, any revolving 
purchase(s) of Receivables where the maximum aggregate uncollected purchase 
price (exclusive of any deferred purchase price) for such Receivables at any 
time outstanding does not exceed $250,000,000, and (b) which Receivables 
shall not be discounted more than 25%.

     PERSON.  Any individual, corporation, partnership, joint venture, 
limited liability company, trust, unincorporated association, business, or 
other legal entity, and any government or any governmental agency or 
political subdivision thereof.

     PRICING TABLE:

<TABLE>

                                                                     APPLICABLE
               SENIOR PUBLIC           APPLICABLE    APPLICABLE      EURODOLLAR
 LEVEL          DEBT RATING          FACILITY RATE     L/C RATE         RATE
- -------------------------------------------------------------------------------
<S>     <C>                          <C>             <C>             <C>       
   1    At  least  A- by Standard &     0.08500%       0.2150%       Eurodollar
        Poor's  or  at  least A3 by    per annum      per annum      Rate plus
        Moody's                                                       0.2150%
                                                                     per annum
- -------------------------------------------------------------------------------
   2    At least BBB+ by Standard &     0.1050%        0.2700%       Eurodollar
        Poor's  or at least Baa1 by    per annum      per annum      Rate plus
        Moody's                                                       0.2700% 
                                                                     per annum
- -------------------------------------------------------------------------------
   3    At  least BBB by Standard &     0.1250%        0.3250%       Eurodollar
        Poor's  or at least Baa2 by    per annum      per annum      Rate plus
        Moody's                                                     0. 0.3250% 
                                                                     per annum
- -------------------------------------------------------------------------------
   4    At least BBB- by Standard &     0.1500%        0.3750%       Eurodollar
        Poor's  or at least Baa3 by    per annum      per annum      Rate plus
        Moody's                                                     0. 0.3750% 
                                                                     per annum
- -------------------------------------------------------------------------------

<PAGE>

- -------------------------------------------------------------------------------
   5    At  least BB+ by Standard &     0.2500%        0.5000%       Eurodollar
        Poor's  or  at least Ba1 by    per annum      per annum      Rate plus
        Moody's                                                       0.5000% 
                                                                     per annum
- -------------------------------------------------------------------------------
   6    If no other level applies       0.3000%        0.5750%       Eurodollar
                                       per annum      per annum      Rate plus
                                                                      0.5750% 
                                                                     per annum
- -------------------------------------------------------------------------------
</TABLE>


The applicable rates charged for any day shall be determined by the Senior 
Public Debt Rating in effect as of that day.

     PRUDENTIAL PRIVATE PLACEMENT DEBT.  (a) That certain Amended and 
Restated Note Agreement dated as of August 28, 1996 by and among the 
Borrower, Sanifill and The Prudential Insurance Company of America and (b) 
that certain Amended and Restated Master Shelf Agreement dated as of August 
28, 1996 by and among the Borrower, Sanifill and The Prudential Insurance 
Company of America, as each shall be amended through the Effective Date.

     RCRA.  See Section 6.15(a).

     REAL PROPERTY.  All real property heretofore, now, or hereafter owned, 
operated, or leased by the Borrower or any of its Subsidiaries.

     REFERENCE BANKS.  BOA, Deutsche and MGT.

     REGULATORY DISPOSITION.  The disposition of any assets of the Borrower 
and its Subsidiaries (including Old WMI) required under antitrust laws in 
connection with the WMI Merger.

     REIMBURSEMENT OBLIGATION.  The Borrower's obligation to reimburse the 
applicable Issuing Bank and the Banks on account of any drawing under any 
Letter of Credit, all as provided in Section 3.2.

     RELEASE.  Shall have the meaning specified in the Comprehensive 
Environmental Response, Compensation and Liability Act of 1980, 42 U.S.C. 
Sections 9601 ET SEQ. ("CERCLA") and the term "Disposal" (or "Disposed") 
shall have the meaning specified in the Resource Conservation and Recovery 
Act of 1976, 42 U.S.C. Sections 6901 ET SEQ. ("RCRA") and regulations 
promulgated thereunder; provided, that in the event either CERCLA or RCRA is 
amended so as to broaden the meaning of any term defined thereby, such 
broader meaning shall apply as of the effective date of such amendment and 
provided further, to the extent that the laws of Canada or a state, province, 
territory or other political subdivision thereof wherein the property lies 
establish a meaning for "Release" or "Disposal" which is broader than 
specified in either CERCLA, or 

<PAGE>

RCRA, such broader meaning shall apply to the Borrower's or any of its 
Subsidiaries' activities in that state, province, territory or political 
subdivision.

     REPLACEMENT BANK.  See Section 5.12.

     REPLACEMENT NOTICE.  See Section 5.12.

     SANIFILL.  Sanifill, Inc., a Delaware corporation having its chief 
executive office at 1001 Fannin Street, Suite 4000, Houston, Texas 77002.

     SANIFILL CONVERTIBLE SUBORDINATED DEBT.  Indebtedness under that certain 
indenture dated as of March 1, 1996, by and between Sanifill and Chase Bank 
of Texas (f/k/a Texas Commerce Bank National Association) as Trustee, as in 
effect on August 7, 1997, with respect to $115,000,000 of 5% convertible 
subordinated debt due March 1, 2006.

     SECTION 20 SUBSIDIARY.  A Subsidiary of the bank holding company 
controlling any Bank, which Subsidiary has been granted authority by the 
Federal Reserve Board to underwrite and deal in certain Ineligible Securities.

     SENIOR PUBLIC DEBT RATING.  The rating(s) of the Borrower's public 
unsecured long-term senior debt, without third party credit enhancement, 
issued by Moody's and/or Standard & Poor's; or in the event no public 
unsecured long-term senior debt is outstanding, the rating(s) of this credit 
facility issued by Moody's and/or Standard & Poor's upon the request of the 
Borrower; PROVIDED that until such time as the Borrower receives such 
rating(s) on such public unsecured long-term senior debt or this credit 
facility, the Borrower's corporate credit rating by Standard & Poor's shall 
apply; PROVIDED FURTHER that in the event that both Moody's and Standard & 
Poor's have issued such ratings, the Senior Public Debt Rating will be the 
higher of such ratings unless such ratings by Moody's and Standard & Poor's 
are more than one rank apart, as set forth in the table below, in which case 
the Senior Public Debt Rating will be set at one rank below the higher of the 
two ratings.
<TABLE>
- -------------------------------------------------------------------------------
               RANK          STANDARD & POOR'S                 MOODY'S
- -------------------------------------------------------------------------------
               <S>       <C>                          <C>
                 1                   A-                           A3
- -------------------------------------------------------------------------------
                 2                  BBB+                         Baa1
- -------------------------------------------------------------------------------
                 3                  BBB                          Baa2
- -------------------------------------------------------------------------------
                 4                  BBB-                         Baa3
- -------------------------------------------------------------------------------
                 5                  BB+                          Ba1
- -------------------------------------------------------------------------------
                 6       If no other level applies    If no other level applies
- -------------------------------------------------------------------------------
</TABLE>

<PAGE>

     STANDARD & POOR'S.  Standard & Poor's Ratings Services, a division of 
The McGraw-Hill Companies, Inc.

     SUBSIDIARY.  Any corporation, association, trust, or other business 
entity of which the designated parent shall at any time own directly or 
indirectly through a Subsidiary or Subsidiaries at least a majority of the 
outstanding capital stock or other interest entitled to vote generally.

     SWING LINE LOANS.  See Section 2.11(a).

     SWING LINE NOTE.  See Section 2.11(a).

     SWING LINE SETTLEMENT.  The making or receiving of payments, in 
immediately available funds, by the Banks to or from the Administrative Agent 
in accordance with Section 2.11 hereof to the extent necessary to cause each 
Bank's actual share of the outstanding amount of the Syndicated Loans to be 
equal to such Bank's Commitment Percentage of the outstanding amount of such 
Syndicated Loans, in any case when, prior to such action, the actual share is 
not so equal.

     SWING LINE SETTLEMENT AMOUNT.  See Section 2.11(b).

     SWING LINE SETTLEMENT DATE.  See Section 2.11(b).

     SWING LINE SETTLING BANK.  See Section 2.11(b).

     SYNDICATED LOAN REQUEST.  See Section 2.6(a).

     SYNDICATED LOANS.  A borrowing hereunder consisting of one or more loans 
made by the Banks to the Borrower under the procedure described in Section 
2.1(a) and Section 2.11 hereof.

     SYNDICATED NOTES.  See Section 2.4(a).

     TOTAL COMMITMENT.  $2,000,000,000, as such amount may be reduced 
pursuant to Section 2.3 hereof, or, if such Total Commitment has been 
terminated pursuant to Section 2.3 or Section 12.2 hereof, zero.

     TRANSITIONAL ISSUING BANKS.  Comerica Bank, Banque Nationale de Paris, 
Royal Bank of Canada, Deutsche and Wachovia Bank.

     UNITED.  United Waste Systems, Inc., a Delaware corporation having its 
chief executive office at 1001 Fannin Street, Suite 4000, Houston, Texas 
77002.

     UNITED CONVERTIBLE SUBORDINATED DEBT.  Indebtedness under that certain 
indenture dated as of June 5, 1996 between United and Bankers Trust Company, 
as trustee, with respect to $150,000,000 of 4.5% convertible subordinated 
notes due June 1, 2001.

     UNITED INDENTURE.  That certain indenture dated as of June 5, 1996, 
between United and Bankers Trust Company, as trustee, in the principal amount 
of $150,000,000 due June 1, 2001.

<PAGE>

     UNITED SENIOR SECURED NOTES.  That certain Secured Note Agreement among 
United and the purchasers listed in the schedule attached thereto dated as of 
September 1, 1995 in the principal amount of $75,000,000 due September 1, 
2005.

     UTILIZATION FEE.  See Section 2.2(b).

     WMF AGREEMENT.  The Receivables Transfer and the Servicing Agreement for 
$550,000,000 dated as of December 27, 1997, among Old WMI, Waste Management 
Financing Corporation, and the Subsidiaries of Old WMI party thereto, the 
lenders party thereto and The Chase Manhattan Bank, as agent.

     WMI CREDIT AGREEMENT.  That certain Credit Agreement, dated as of March 
31, 1998, among Old WMI, the lenders party thereto and The Chase Manhattan 
Bank, as Administrative Agent.

     WMI JOINDER.  A joinder to this Agreement in the form of EXHIBIT L 
executed by Old WMI simultaneously with the closing of the WMI Merger wherein 
Old WMI becomes a Guarantor hereunder, and such other related documents 
reasonably requested by the Administrative Agent, all in form and substance 
satisfactory to the Administrative Agent.

     WMI JOINDER DATE.  The date of the WMI Joinder.

     WMI MERGER.  The merger of Dome into Old WMI pursuant to the WMI Merger 
Agreement, on or about July 16, 1998, with Old WMI being the surviving 
corporation and becoming a wholly owned subsidiary of the Borrower and with 
Old WMI changing its name to Waste Management Holdings, Inc.

     WMI MERGER AGREEMENT.  The Agreement and Plan of Merger, dated as of 
March 10, 1998, among the Borrower, Dome and Old WMI.

     WMI MERGER COSTS AND SPECIAL CHARGES. Up to $1,700,000,000 in pooling 
costs and merger-related expenses actually incurred with respect to the WMI 
Merger, taken as a special charge in the quarter ending September 30, l998, 
and up to $200,000,000 in after tax charges actually incurred with respect to 
Old WMI shareholder litigation and Securities and Exchange Commission 
investigations which were pending or initiated prior to the Effective Date, 
taken as a special charge.

     WMINTERNATIONAL.  Waste Management International PLC, a public limited 
company incorporated in England and Wales and a Subsidiary of Old WMI.

     YEAR 2000 COMPLIANCE ISSUE.  The risk that computer applications used by 
the Borrower or any of its Subsidiaries may be unable to recognize and 
perform properly date-sensitive functions involving certain dates prior to 
and any date after December 31, 1999.

     Section 1.2.  RULES OF INTERPRETATION.  

<PAGE>

          (a)  A reference to any document or agreement (including this
     Agreement) shall include such document or agreement as amended, modified or
     supplemented from time to time in accordance with its terms and the terms
     of this Agreement.

          (b)  The singular includes the plural and the plural includes the
     singular.

          (c)  A reference to any law includes any amendment or modification to
     such law.

          (d)  A reference to any Person includes its permitted successors and
     permitted assigns.

          (e)  Accounting terms capitalized but not otherwise defined herein
     have the meanings assigned to them by generally accepted accounting
     principles applied on a consistent basis by the accounting entity to which
     they refer.

          (f)  The words "include", "includes" and "including" are not limiting.

          (g)  All terms not specifically defined herein or by generally
     accepted accounting principles, which terms are defined in the Uniform
     Commercial Code as in effect in the State of New York, have the meanings
     assigned to them therein.

          (h)  Reference to a particular "Section " refers to that section of
     this Agreement unless otherwise indicated.

          (i)  The words "herein", "hereof", "hereunder" and words of like
     import shall refer to this Agreement as a whole and not to any particular
     section or subdivision of this Agreement.

     SECTION 2.  THE LOAN FACILITIES.

     Section 2.1.  COMMITMENT TO LEND.  

          (a)  Subject to the terms and conditions set forth in this Agreement,
     each of the Banks severally agrees to lend to the Borrower and the Borrower
     may borrow, repay, and reborrow from time to time between the Effective
     Date and the Maturity Date, upon notice by the Borrower to the
     Administrative Agent given in accordance with this Section 2, its
     Commitment Percentage of the Syndicated Loans as are requested by the
     Borrower; PROVIDED THAT the sum of the outstanding principal amount of the
     Syndicated Loans (including the Swing Line Loans) and the Maximum Drawing
     Amount of outstanding Letters of Credit shall not exceed the Total
     Commitment MINUS the aggregate amount of Competitive Bid Loans outstanding
     at such time.

          (b)  Each request for a Loan or Letter of Credit hereunder shall
     constitute a representation and warranty by the Borrower that the
     conditions set forth in Section 10 and Section 11, as the case may be, have
     been satisfied on the date of such request.  Any unpaid Reimbursement
     Obligation shall be a Base Rate Loan, as set forth in Section 3.2(a).

<PAGE>

     Section 2.2.  FACILITY FEE; UTILIZATION FEE.  

          (a)  The Borrower agrees to pay to the Administrative Agent for the
     account of the Banks a fee (the "Facility Fee") on the Total Commitment
     equal to the Applicable Facility Rate multiplied by the Total Commitment. 
     The Facility Fee shall be payable for the period from and after the
     Effective Date quarterly in arrears on the first day of each calendar
     quarter for the immediately preceding calendar quarter commencing on
     October 1, 1998 with a final payment on the Maturity Date (or on the date
     of termination in full of the Total Commitment, if earlier).  The Facility
     Fee shall be distributed pro rata among the Banks in accordance with each
     Bank's Commitment Percentage.

          (b)  In the event that the average outstanding amount of the Loans
     PLUS the average Maximum Drawing Amount of the Letters of Credit and unpaid
     Reimbursement Obligations in any calendar quarter (collectively, the
     "Average Quarterly Utilization Amount") exceeds fifty percent (50%) of the
     Total Commitment in effect during such calendar quarter, the Borrower
     agrees to pay to the Administrative Agent for the account of the Banks a
     fee (the "Utilization Fee") equal to 0.10% per annum on the Average
     Quarterly Utilization Amount.  If applicable, the Utilization Fee shall be
     payable quarterly in arrears on the first day of each calendar quarter for
     the immediate preceding calendar quarter (or such lesser period of time as
     has elapsed since the Effective Date), commencing October 1, 1998 with a
     final payment on the Maturity Date (or on the date of termination in full
     of the Total Commitment if earlier).  The Utilization Fee shall be
     distributed PRO RATA among the Banks in accordance with each Bank's
     Commitment Percentage.

     Section 2.3.  REDUCTION OF TOTAL COMMITMENT.  

          (a)  The Borrower shall have the right at any time and from time to
     time upon three (3) Business Days' prior written notice to the
     Administrative Agent to reduce by $25,000,000 or a greater amount or
     terminate entirely, the Total Commitment, whereupon each Bank's Commitment
     shall be reduced PRO RATA in accordance with such Bank's Commitment
     Percentage of the amount specified in such notice or, as the case may be,
     terminated PROVIDED that at no time may (i) the Total Commitment be reduced
     to an amount less than the sum of (A) the Maximum Drawing Amount of all
     Letters of Credit, and (B) all Loans then outstanding.

          (b)  No reduction or termination of the Total Commitment once made may
     be revoked; the portion of the Total Commitment reduced or terminated may
     not be reinstated; and amounts in respect of such reduced or terminated
     portion may not be reborrowed.

          (c)  The Administrative Agent will notify the Banks promptly after
     receiving any notice delivered by the Borrower pursuant to this Section 2.3
     and will distribute to each Bank a revised SCHEDULE 1 to this Agreement.

     Section 2.4.  THE SYNDICATED NOTES.  

<PAGE>

          (a)  The Syndicated Loans shall be evidenced by separate promissory
     notes of the Borrower in substantially the form of EXHIBIT A hereto (each,
     a "Syndicated Note"), dated as of the Original Closing Date and completed
     with appropriate insertions.  One Syndicated Note shall be payable to the
     order of each Bank in an amount equal to its maximum Commitment, and shall
     represent the obligation of the Borrower to pay such Bank such principal
     amount or, if less, the outstanding principal amount of all Syndicated
     Loans made by such Bank, plus interest accrued thereon, as set forth
     herein.

          (b)  The Borrower irrevocably authorizes each Bank to make, or cause
     to be made, in connection with a Drawdown Date of any Syndicated Loan and
     at the time of receipt of any payment of principal on its Syndicated Note,
     an appropriate notation on such Bank's records or on the schedule attached
     to such Bank's Syndicated Note or a continuation of such schedule attached
     thereto reflecting the making of such Loan, or the receipt of such payment
     (as the case may be) and each Bank may, prior to any transfer of its
     Syndicated Note endorse on the reverse side thereof the outstanding
     principal amount of such Loans evidenced thereby.  The outstanding amount
     of the Loans set forth on such Bank's records shall be PRIMA FACIE evidence
     of the principal amount thereof owing and unpaid to such Bank, but the
     failure to record, or any error in so recording, any such amount shall not
     limit or otherwise affect the obligations of the Borrower hereunder or
     under such Notes to make payments of principal of or interest on any such
     Notes when due.

     SECTION 2.5.  INTEREST ON LOANS.  

          (a)  The outstanding principal amount of the Syndicated Loans shall
     bear interest at the rate per annum equal to (i) the Base Rate on Base Rate
     Loans, (ii) the Applicable Eurodollar Rate on Eurodollar Loans and (iii)
     the Applicable Swing Line Rate on Swing Line Loans.

          (b)  Interest shall be payable (i) monthly in arrears on the first
     Business Day of each month, commencing August 1, 1998, on Base Rate Loans,
     (ii) on the last day of the applicable Interest Period, and if such
     Interest Period is longer than three months, also on the last day of the
     third month following the commencement of such Interest Period, on
     Eurodollar Loans, and (iii) on the Maturity Date for all Loans.

     SECTION 2.6.  REQUESTS FOR SYNDICATED LOANS.  

          (a)  The Borrower shall give to the Administrative Agent written 
notice in the form of EXHIBIT D hereto (or telephonic notice confirmed in 
writing or a facsimile in the form of EXHIBIT D hereto) of each Syndicated 
Loan requested hereunder (a "Syndicated Loan Request") not later than (a) 
11:00 a.m. (New York time) on the proposed Drawdown Date of any Base Rate 
Loan, or (b) 11:00 a.m. (New York time) three (3) Eurodollar Business Days 
prior to the proposed Drawdown Date of any Eurodollar Loan.  Each such 
Syndicated Loan Request shall specify (A) the principal amount of the 
Syndicated Loan requested, (B) the proposed Drawdown Date of such Syndicated 
Loan, (C) whether such Syndicated Loan requested is to be a Base Rate Loan or 
a Eurodollar Loan, and (D) the Interest Period for such Syndicated Loan, if a 
Eurodollar 

<PAGE>

Loan.  Each Syndicated Loan requested shall be in a minimum amount 
of $10,000,000.  Each such Syndicated Loan Request shall reflect the Maximum 
Drawing Amount of all Letters of Credit outstanding and the amount of all 
Loans outstanding (including Competitive Bid Loans and Swing Line Loans).  
Syndicated Loan Requests made hereunder shall be irrevocable and binding on 
the Borrower, and shall obligate the Borrower to accept the Syndicated Loan 
requested from the Banks on the proposed Drawdown Date.

     (b)  Each of the representations and warranties made by the Borrower to 
the Banks or the Administrative Agent in this Agreement or any other Loan 
Document shall be true and correct in all material respects when made and 
shall, for all purposes of this Agreement, be deemed to be repeated by the 
Borrower on and as of the date of the submission of a Syndicated Loan 
Request, Competitive Bid Quote Request, or Letter of Credit Application and 
on and as of the Drawdown Date of any Loan or the date of issuance of any 
Letter of Credit (except to the extent (i) of changes resulting from 
transactions contemplated or permitted by this Agreement and the other Loan 
Documents, (ii) of changes occurring in the ordinary course of business that 
singly or in the aggregate are not materially adverse to the business, assets 
or financial condition of the Borrower and its Subsidiaries as a whole, or 
(iii) that such representations and warranties expressly relate only to an 
earlier date).

     (c)  The Administrative Agent shall promptly notify each Bank of each
Syndicated Loan Request received by the Administrative Agent (i) on the proposed
Drawdown Date of any Base Rate Loan, or (ii) three (3) Eurodollar Business Days
prior to the proposed Drawdown Date of any Eurodollar Loan.

     SECTION 2.7.  ELECTION OF EURODOLLAR RATE; NOTICE OF ELECTION; INTEREST
PERIODS; MINIMUM AMOUNTS.  

          (a)  At the Borrower's option, so long as no Default or Event of
     Default has occurred and is then continuing, the Borrower may (i) elect to
     convert any Base Rate Loan or a portion thereof to a Eurodollar Loan, (ii)
     at the time of any Syndicated Loan Request, specify that such requested
     Loan shall be a Eurodollar Loan, or (iii) upon expiration of the applicable
     Interest Period, elect to maintain an existing Eurodollar Loan as such,
     PROVIDED that the Borrower give notice to the Administrative Agent pursuant
     to Section 2.7(b) hereof.  Upon determining any Eurodollar Rate, the
     Administrative Agent shall forthwith provide notice thereof to the Borrower
     and the Banks, and each such notice to the Borrower shall be considered
     PRIMA FACIE correct and binding, absent manifest error.

          (b)  Three (3) Eurodollar Business Days prior to the making of any
     Eurodollar Loan or the conversion of any Base Rate Loan to a Eurodollar
     Loan, or, in the case of an outstanding Eurodollar Loan, the expiration
     date of the applicable Interest Period, the Borrower shall give written,
     telex or facsimile notice received by the Administrative Agent not later
     than 11:00 a.m. (New York time) of its election pursuant to Section 2.7(a).
     Each such notice delivered to the Administrative Agent shall specify the
     aggregate principal amount of the Syndicated Loans to be borrowed or
     maintained as or converted to Eurodollar Loans and the requested duration
     of the Interest Period that will be applicable 

<PAGE>

     to such Eurodollar Loan, and shall be irrevocable and binding upon the 
     Borrower.  If the Borrower shall fail to give the Administrative Agent 
     notice of its election hereunder together with all of the other 
     information required by this Section 2.7(b) with respect to any 
     Syndicated Loan, whether at the end of an Interest Period or otherwise, 
     such Syndicated Loan shall be deemed a Base Rate Loan. The 
     Administrative Agent shall promptly notify the Banks in writing (or by 
     telephone confirmed in writing or by facsimile) of such election.

          (c)  Notwithstanding anything herein to the contrary, the Borrower may
     not specify an Interest Period that would extend beyond the Maturity Date.

          (d)  No conversion of Loans pursuant to this Section 2.7 may result in
     Eurodollar Loans that are less than $5,000,000.  In no event shall the
     Borrower have more than eight (8) different Interest Periods for borrowings
     of Eurodollar Loans outstanding at any time.

          (e)  Subject to the terms and conditions of Section 5.8 hereof, if any
     affected Bank demands compensation under Section 5.5(c) or (d) with respect
     to any Eurodollar Loan, the Borrower may at any time, upon at least three
     (3) Business Days' prior written notice to the applicable Administrative
     Agent, elect to convert such Eurodollar Loan into a Base Rate Loan (on
     which interest and principal shall be payable contemporaneously with the
     related Eurodollar Loans of the other Banks).  Thereafter, and until such
     time as the affected Bank notifies the Administrative Agent that the
     circumstances giving rise to the demand for compensation under Section
     5.5(c) or (d) no longer exist, all requests for Eurodollar Loans from such
     affected Bank shall be deemed to be requests for Base Rate Loans.  Once the
     affected Bank notifies the Administrative Agent that such circumstances no
     longer exist, the Borrower may elect that the principal amount of each such
     Loan converted hereunder shall again bear interest as Eurodollar Loans
     beginning on the first day of the next succeeding Interest Period
     applicable to the related Eurodollar Loans of the other Banks.

     SECTION 2.8.  FUNDS FOR SYNDICATED LOANS.  Not later than 1:00 p.m. (New 
York time) on the proposed Drawdown Date of Syndicated Loans, each of the 
Banks will make available to the Administrative Agent at its Head Office, in 
immediately available funds, the amount of its Commitment Percentage of the 
amount of the requested Loan. Upon receipt from each Bank of such amount, and 
upon receipt of the documents required by Section 10 and Section 11 and the 
satisfaction of the other conditions set forth therein, the Administrative 
Agent will make available to the Borrower the aggregate amount of such 
Syndicated Loans made available by the Banks.  The failure or refusal of any 
Bank to make available to the Administrative Agent at the aforesaid time and 
place on any Drawdown Date the amount of its Commitment Percentage of the 
requested Syndicated Loan shall not relieve any other Bank from its several 
obligations hereunder to make available to the Administrative Agent the 
amount of such Bank's Commitment Percentage of the requested Loan.

     SECTION 2.9.  MATURITY OF THE LOANS AND REIMBURSEMENT OBLIGATIONS.  The 
Borrower promises to pay on the Maturity Date, and there shall become 
absolutely due and payable on the Maturity 

<PAGE>

Date, all of the Loans and unpaid Reimbursement Obligations outstanding on 
such date, together with any and all accrued and unpaid interest thereon and 
any fees and other amounts owing hereunder.

     SECTION 2.10.  OPTIONAL PREPAYMENTS OR REPAYMENTS OF LOANS.  Subject to 
the terms and conditions of Section 5.8, the Borrower shall have the right, 
at its election, to repay or prepay the outstanding amount of the Loans, as a 
whole or in part, at any time without penalty or premium.  The Borrower shall 
give the Administrative Agent no later than 11:00 a.m. (New York time) (a) on 
the proposed date of prepayment or repayment of Base Rate Loans and (b) three 
(3) Business Day prior to the proposed date of prepayment or repayment of all 
other Loans, written notice (or telephonic notice confirmed in writing or by 
facsimile) of any proposed prepayment or repayment pursuant to this Section 
2.10, specifying the proposed date of prepayment or repayment of Loans and 
the principal amount to be paid.  Notwithstanding the foregoing, the Borrower 
may not prepay any Competitive Bid Loans.  The Administrative Agent shall 
promptly notify each Bank by written notice (or telephonic notice confirmed 
in writing or by facsimile) of such notice of payment.

     SECTION 2.11.  SWING LINE LOANS; SETTLEMENTS.

          (a)  Solely for ease of administration of the Syndicated Loans, MGT
     may, but shall not be required to, fund Base Rate Loans made in accordance
     with the provisions of this Agreement ("Swing Line Loans").  The Swing Line
     Loans shall be evidenced by a promissory note of the Borrower in
     substantially the form of EXHIBIT B hereto (the "Swing Line Note") and, at
     the discretion of MGT may be in amounts less than $10,000,000 PROVIDED that
     the outstanding amount of Swing Line Loans advanced by MGT hereunder shall
     not exceed $10,000,000 at any time.  Each Bank shall remain severally and
     unconditionally liable to fund its pro rata share (based upon each Bank's
     Commitment Percentage) of such Swing Line Loans on each Swing Line
     Settlement Date and, in the event MGT chooses not to fund all Base Rate
     Loans requested on any date, to fund its Commitment Percentage of the Base
     Rate Loans requested, subject to satisfaction of the provisions hereof
     relating to the making of Base Rate Loans.  Prior to each Swing Line
     Settlement, all payments or repayments of the principal of, and interest
     on, Swing Line Loans shall be credited to the account of MGT.

          (b)  The Banks shall effect Swing Line Settlements on (i) the Business
     Day immediately following any day which MGT gives written notice to the
     Administrative Agent to effect a Swing Line Settlement, (ii) the Business
     Day immediately following the Administrative Agent's becoming aware of the
     existence of any Default or Event of Default and (iii) the Maturity Date
     (each such date, a "Swing Line Settlement Date").  One (1) Business Day
     prior to each such Swing Line Settlement Date, the Administrative Agent
     shall give telephonic notice to the Banks of (A) the respective outstanding
     amount of Syndicated Loans made by each Bank as at the close of business on
     the prior day, (B) the amount that any Bank, as applicable (a "Swing Line
     Settling Bank"), shall pay to effect a Swing Line Settlement (a "Swing Line
     Settlement Amount") and (C) the portion (if any) of the aggregate Swing
     Line Settlement Amount to be paid to each Bank.  A 

<PAGE>

     statement of the Administrative Agent submitted to the Banks with 
     respect to any amounts owing hereunder shall be PRIMA FACIE evidence of 
     the amount due and owing. Each Swing Line Settling Bank shall, not 
     later than 1:00 p.m. (New York time) on each Swing Line Settlement 
     Date, effect a wire transfer of immediately available funds to the 
     Administrative Agent at its Head Office in the amount of such Bank's 
     Swing Line Settlement Amount.  The Administrative Agent shall, as 
     promptly as practicable during normal business hours on each Swing Line 
     Settlement Date, effect a wire transfer of immediately available funds 
     to each Bank of the Swing Line Settlement Amount to be paid to such 
     Bank.  All funds advanced by any Bank as a Swing Line Settling Bank 
     pursuant to this Section 2.11(b) shall for all purposes be treated as a 
     Base Rate Loan made by such Swing Line Settling Bank to the Borrower, 
     and all funds received by any Bank pursuant to this Section 2.11(b) 
     shall for all purposes be treated as repayment of amounts owed by the 
     Borrower with respect to Base Rate Loans made by such Bank.

          (c)  The Administrative Agent may (unless notified to the contrary by
     any Swing Line Settling Bank by 12:00 noon (New York time) one (1) Business
     Day prior to the Settlement Date) assume that each Swing Line Settling Bank
     has made available (or will make available by the time specified in Section
     2.11(b)) to the Administrative Agent its Swing Line Settlement Amount, and
     the Administrative Agent may (but shall not be required to), in reliance
     upon such assumption, make available to each applicable Bank its share (if
     any) of the aggregate Swing Line Settlement Amount.  If the Swing Line
     Settlement Amount of such Swing Line Settling Bank is made available to the
     Administrative Agent by such Swing Line Settling Bank on a date after such
     Swing Line Settlement Date, such Swing Line Settling Bank shall pay the
     Administrative Agent on demand an amount equal to the product of (i) the
     average, computed for the period referred to in clause (iii) below, of the
     weighted average annual interest rate paid by the Administrative Agent for
     federal funds acquired by the Administrative Agent during each day included
     in such period TIMES (ii) such Swing Line Settlement Amount TIMES (iii) a
     fraction, the numerator of which is the number of days that elapse from and
     including such Swing Line Settlement Date to but not including the date on
     which such Swing Line Settlement Amount shall become immediately available
     to the Administrative Agent, and the denominator of which is 365.  Upon
     payment of such amount such Swing Line Settling Bank shall be deemed to
     have delivered its Swing Line Settlement Amount on the Swing Line
     Settlement Date and shall become entitled to interest payable by the
     Borrower with respect to such Swing Line Settling Bank's Swing Line
     Settlement Amount as if such share were delivered on the Swing Line
     Settlement Date.  If such Swing Line Settlement Amount is not in fact made
     available to the Administrative Agent by such Swing Line Settling Bank
     within three (3) Business Days of such Swing Line Settlement Date, the
     Administrative Agent shall be entitled to recover such amount from the
     Borrower, with interest thereon at the Base Rate.

          (d)  After any Swing Line Settlement Date, any payment by the Borrower
     of Swing Line Loans hereunder shall be allocated among the Banks, in
     amounts determined so as to provide that after such application and the
     related Swing Line Settlement, the 

<PAGE>

     outstanding amount of Syndicated Loans of each Bank equals, as nearly as 
     practicable, such Bank's Commitment Percentage of the aggregate amount of 
     Syndicated Loans.

     SECTION 3.  LETTERS OF CREDIT.

     SECTION 3.1.  LETTER OF CREDIT COMMITMENTS.

          (a)  Subject to the terms and conditions hereof and the receipt of a
     Letter of Credit Application by an Issuing Bank, with a copy to the
     Administrative Agent reflecting the Maximum Drawing Amount of all Letters
     of Credit (including the requested Letter of Credit), such Issuing Bank, on
     behalf of the Banks and in reliance upon the representations and warranties
     of the Borrower contained herein and the agreement of the Banks contained
     in Section 3.1(b) hereof, agrees to issue Letters of Credit for the account
     of the Borrower (which may, with such Issuing Bank's consent, incorporate
     automatic renewals for periods of up to twelve (12) months), in such form
     as may be requested from time to time by the Borrower and agreed to by the
     Issuing Bank; PROVIDED, HOWEVER, that, after giving effect to such request,
     the aggregate Maximum Drawing Amount of all Letters of Credit issued at any
     time shall not exceed the Total Commitment MINUS the aggregate outstanding
     amount of the Loans and PROVIDED FURTHER, that no Letter of Credit shall
     have an expiration date later than the earlier of (i) eighteen (18) months
     after the date of issuance (which may incorporate automatic renewals for
     periods of up to twelve (12) months), or (ii) five (5) Business Days prior
     to the Maturity Date. The letters of credit listed in SCHEDULE 3.1(a)
     issued by Issuing Banks under the Existing Credit Agreement shall be
     Letters of Credit under this Agreement.  The letters of credit listed in
     SCHEDULE 3.1(b) issued by the Transitional Issuing Banks to the account of
     Old WMI or its Subsidiaries (the "Old WMI Letters of Credit") shall be
     Letters of Credit under this Agreement issued for the account of the
     Borrower as of the WMI Joinder Date; PROVIDED, HOWEVER, no Issuance Fee
     shall be payable hereunder to any Transitional Issuing Bank.  The Old WMI
     Letters of Credit may only be renewed or extended by Letters of Credit
     issued by Issuing Banks (other than Transitional Issuing Banks) hereunder.

          (b)  Each Letter of Credit shall be denominated in Dollars.  Each Bank
     severally agrees that it shall be absolutely liable, without regard to the
     occurrence of any Default or Event of Default, the termination of the Total
     Commitment pursuant to Section 12.2, or any other condition precedent
     whatsoever, to the extent of such Bank's Commitment Percentage to reimburse
     the Issuing Bank on demand for the amount of each draft paid by the Issuing
     Bank under each Letter of Credit to the extent that such amount is not
     reimbursed by the Borrower pursuant to Section 3.2 (such agreement for a
     Bank being called herein the "Letter of Credit Participation" of such
     Bank).  Each Bank agrees that its obligation to reimburse the Issuing Bank
     pursuant to this Section 3.1(b) shall not be affected in any way by any
     circumstance other than the gross negligence or willful misconduct of the
     Issuing Bank.  

<PAGE>

          (c)  Each such reimbursement payment made by a Bank to the Issuing
     Bank shall be treated as the purchase by such Bank of a participating
     interest in the applicable Reimbursement Obligation under Section 3.2 in an
     amount equal to such payment.  Each Bank shall share in accordance with its
     participating interest in any interest which accrues pursuant to Section
     3.2.

     SECTION 3.2.  REIMBURSEMENT OBLIGATION OF THE BORROWER.  In order to 
induce the Issuing Banks to issue, extend and renew each Letter of Credit, 
the Borrower hereby agrees to reimburse or pay to each Issuing Bank, with 
respect to each Letter of Credit issued, extended or renewed by such Issuing 
Bank hereunder as follows:

          (a)  if any draft presented under any Letter of Credit is honored by
     such Issuing Bank or such Issuing Bank otherwise makes payment with respect
     thereto, the sum of (i) the amount paid by such Issuing Bank under or with
     respect to such Letter of Credit, and (ii) the amount of any taxes, fees,
     charges or other costs and expenses whatsoever incurred by such Issuing
     Bank in connection with any payment made by such Issuing Bank under, or
     with respect to, such Letter of Credit, PROVIDED HOWEVER, if the Borrower
     does not reimburse such Issuing Bank on the Drawdown Date, such amount
     shall, provided that no Event of Default under Sections 12.1(g) or 12.1(h)
     has occurred, become automatically a Syndicated Loan which is a Base Rate
     Loan advanced hereunder in an amount equal to such sum; and

          (b)  upon the Maturity Date or the acceleration of the Reimbursement
     Obligations with respect to all Letters of Credit in accordance with
     Section 12, an amount equal to the then Maximum Drawing Amount of  all
     Letters of Credit shall be paid by the Borrower to the Administrative Agent
     to be held as cash collateral for the applicable Reimbursement Obligations.

     SECTION 3.3.  OBLIGATIONS ABSOLUTE.  The Borrower's respective 
obligations under this Section 3 shall be absolute and unconditional under 
any and all circumstances and irrespective of the occurrence of any Default 
or Event of Default or any condition precedent whatsoever or any setoff, 
counterclaim or defense to payment which the Borrower may have or have had 
against any Issuing Bank, any Bank or any beneficiary of a Letter of Credit, 
and the Borrower expressly waives any such rights that it may have with 
respect thereto.  The Borrower further agrees with each Issuing Bank and the 
Banks that such Issuing Bank and the Banks (i) shall not be responsible for, 
and the Borrower's Reimbursement Obligations under Section 3.2 shall not be 
affected by, among other things, the validity or genuineness of documents or 
of any endorsements thereon, even if such documents should in fact prove to 
be in any or all respects invalid, fraudulent or forged (unless due to the 
willful misconduct of such Issuing Bank or any other Bank), or any dispute 
between or among the Borrower and the beneficiary of any Letter of Credit or 
any financing institution or other party to which any Letter of Credit may be 
transferred or any claims or defenses whatsoever of the Borrower against the 
beneficiary of any Letter of Credit or any such transferee, and (ii) shall 
not be liable for any error, omission, interruption or delay in transmission, 
dispatch or delivery of any message or advice, however transmitted, in 
connection with any Letter of Credit except to the extent of their own 
willful misconduct.  The Borrower 

<PAGE>

agrees that any action taken or omitted by any Issuing Bank or any Bank in 
good faith under or in connection with any Letter of Credit and the related 
drafts and documents shall be binding upon the Borrower and shall not result 
in any liability on the part of such Issuing Bank or any Bank (or their 
respective affiliates) to the Borrower.  Nothing herein shall constitute a 
waiver by the Borrower of any of its rights against any beneficiary of a 
Letter of Credit.

     SECTION 3.4.  RELIANCE BY THE ISSUING BANKS.  To the extent not 
inconsistent with Section 3.3, each Issuing Bank shall be entitled to rely, 
and shall be fully protected in relying, upon any Letter of Credit, draft, 
writing, resolution, notice, consent, certificate, affidavit, letter, 
cablegram, telegram, facsimile, telex or teletype message, statement, order 
or other document believed by such Issuing Bank in good faith to be genuine 
and correct and to have been signed, sent or made by the proper Person or 
Persons and upon advice and statements of legal counsel, independent 
accountants and other experts selected by such Issuing Bank.

     SECTION 3.5.  NOTICE REGARDING LETTERS OF CREDIT.  One (1) Business Day 
prior to the issuance of any Letter of Credit or amendments, extensions or 
terminations thereof, the applicable Issuing Bank shall notify the 
Administrative Agent of the terms of such Letter of Credit, amendment, 
extension or termination.  On the day of any drawing under any Letter of 
Credit, such Issuing Bank shall notify the Administrative Agent of such 
drawing under any Letter of Credit.

     SECTION 3.6.  LETTER OF CREDIT FEE.  The Borrower shall pay a fee (the 
"Letter of Credit Fee") equal to the Applicable L/C Rate on the Maximum 
Drawing Amount of the Letters of Credit to the Administrative Agent for the 
account of the Banks, to be shared PRO RATA by the Banks in accordance with 
their respective Commitment Percentages.  The Letter of Credit Fee shall be 
payable quarterly in arrears on the first day of each calendar quarter for 
the quarter just ended, commencing October 1, 1998, and on the Maturity Date. 
 In addition, an issuing fee (the "Issuance Fee") with respect to each Letter 
of Credit to be agreed upon annually between the Borrower and each Issuing 
Bank shall be payable to such Issuing Bank for its account. 

     SECTION 4.  COMPETITIVE BID LOANS.

     SECTION 4.1.  THE COMPETITIVE BID OPTION.  In addition to the Syndicated 
Loans made pursuant to Section 2 hereof, the Borrower may request Competitive 
Bid Loans pursuant to the terms of this Section 4.  The Banks may, but shall 
have no obligation to, make such offers and the Borrower may, but shall have 
no obligation to, accept such offers in the manner set forth in this Section 
4.  Notwithstanding any other provision herein to the contrary, at no time 
shall the aggregate principal amount of Competitive Bid Loans outstanding at 
any time exceed the Total Commitment MINUS the sum of (a) the aggregate 
outstanding principal amount of Syndicated Loans (including the Swing Loans), 
PLUS (b) the Maximum Drawing Amount of Letters of Credit, outstanding at such 
time.

     SECTION 4.2.  COMPETITIVE BID LOAN ACCOUNTS:  COMPETITIVE BID NOTES.  

          (a)  The obligation of the Borrower to repay the outstanding principal
     amount of any and all Competitive Bid Loans, plus interest at the
     applicable Competitive Bid Rate accrued thereon, shall be evidenced by this
     Agreement and by individual loan accounts (the "Competitive Bid Loan
     Accounts" and individually, a "Competitive Bid 

<PAGE>

     Loan Account") maintained by the Administrative Agent on its books for 
     each of the Banks, it being the intention of the parties hereto that, 
     except as provided for in paragraph (b) of this Section 4.2, the 
     Borrower's obligations with respect to Competitive Bid Loans are to be 
     evidenced only as stated herein and not by separate promissory notes.

          (b)  Any Bank may at any time, and from time to time, request that any
     Competitive Bid Loans outstanding to such Bank be evidenced by a promissory
     note of the Borrower in substantially the form of EXHIBIT C hereto (each, a
     "Competitive Bid Note"), dated as of the Original Closing Date and
     completed with appropriate insertions.  One Competitive Bid Note shall be
     payable to the order of each Bank in an amount equal to the Total
     Commitment, and representing the obligation of the Borrower to pay such
     Bank such principal amount or, if less, the outstanding principal amount of
     any and all Competitive Bid Loans made by such Bank, plus interest at the
     applicable Competitive Bid Rate or Competitive Bid Margin accrued thereon,
     as set forth herein.  Upon execution and delivery by the Borrower of a
     Competitive Bid Note, the Borrower's obligation to repay any and all
     Competitive Bid Loans made to it by such Bank and all interest thereon
     shall thereafter be evidenced by such Competitive Bid Note.

          (c)  The Borrower irrevocably authorizes (i) each Bank to make or
     cause to be made, in connection with a Drawdown Date of any Competitive Bid
     Loan or at the time of receipt of any payment of principal on such Bank's
     Competitive Bid Note in the case of a Competitive Bid Note, and (ii) the
     Administrative Agent to make or cause to be made, in connection with a
     Drawdown Date of any Competitive Bid Loan or at the time of receipt of any
     payment of principal on such Bank's Competitive Bid Loan Account in the
     case of a Competitive Bid Loan Account, an appropriate notation on such
     Bank's records or on the schedule attached to such Bank's Competitive Bid
     Note or a continuation of such schedule attached thereto, or the
     Administrative Agent's records, as applicable, reflecting the making of the
     Competitive Bid Loan or the receipt of such payment (as the case may be)
     and such Bank may, prior to any transfer of a Competitive Bid Note, endorse
     on the reverse side thereof the outstanding principal amount of Competitive
     Bid Loans evidenced thereby.  The outstanding amount of the Competitive Bid
     Loans set forth on such Bank's record or the Administrative Agent's
     records, as applicable, shall be PRIMA FACIE evidence of the principal
     amount thereof owing and unpaid to such Bank, but the failure to record, or
     any error in so recording, any such amount shall not limit or otherwise
     affect the obligations of the Borrower hereunder to make payments of
     principal of or interest on any Competitive Bid Loan when due.

     SECTION 4.3.  COMPETITIVE BID QUOTE REQUEST; INVITATION FOR COMPETITIVE BID
QUOTES.  

          (a)  When the Borrower wishes to request offers to make Competitive
     Bid Loans under this Section 4, it shall transmit to the Administrative
     Agent by telex or facsimile a Competitive Bid Quote Request substantially
     in the form of EXHIBIT H hereto (a "Competitive Bid Quote Request") so as
     to be received no later than 1:00 p.m. (New York time) (x) five (5)
     Eurodollar Business Days prior to the requested Drawdown Date in the case
     of a LIBOR Competitive Bid Loan (a "LIBOR Competitive Bid Loan") or (y) 

<PAGE>

     one (1) Business Day prior to the requested Drawdown Date in the case of 
     an Absolute Competitive Bid Loan (an "Absolute Competitive Bid Loan"),
     specifying:

               (i) the requested Drawdown Date (which must be a Eurodollar
          Business Day in the case of a LIBOR Competitive Bid Loan or a Business
          Day in the case of an Absolute Competitive Bid Loan);

               (ii) the aggregate amount of such Competitive Bid Loans, which
          shall be $10,000,000 or larger multiple of $1,000,000; 

               (iii) the duration of the Interest Period(s) applicable thereto,
          subject to the provisions of the definition of Interest Period; and

               (iv)  whether the Competitive Bid Quotes requested are for LIBOR
          Competitive Bid Loans or Absolute Competitive Bid Loans.

     The Borrower may request offers to make Competitive Bid Loans for more than
     one Interest Period in a single Competitive Bid Quote Request.  No new
     Competitive Bid Quote Request shall be given until the Borrower has
     notified the Administrative Agent of its acceptance or non-acceptance of
     the Competitive Bid Quotes relating to any outstanding Competitive Bid
     Quote Request.

          (b)  Promptly upon receipt of a Competitive Bid Quote Request, the
     Administrative Agent shall send to the Banks by telecopy or facsimile
     transmission an Invitation for Competitive Bid Quotes substantially in the
     form of EXHIBIT I hereto, which shall constitute an invitation by the
     Borrower to each Bank to submit Competitive Bid Quotes in accordance with
     this Section 4.  

     SECTION 4.4.  ALTERNATIVE MANNER OF PROCEDURE.  If, after receipt by the 
Administrative Agent and each of the Banks of a Competitive Bid Quote Request 
from the Borrower in accordance with Section 4.3, the Administrative Agent or 
any Bank shall be unable to complete any procedure of the auction process 
described in Sections 4.5 through 4.6 (inclusive) due to the inability of 
such Person to transmit or receive communications through the means specified 
therein, such Person may rely on telephonic notice for the transmission or 
receipt of such communications.  In any case where such Person shall rely on 
telephone transmission or receipt, any communication made by telephone shall, 
as soon as possible thereafter, be followed by written confirmation thereof.

     SECTION 4.5.  SUBMISSION AND CONTENTS OF COMPETITIVE BID QUOTES.  

          (a)  Each Bank may, but shall be under no obligation to, submit a
     Competitive Bid Quote containing an offer or offers to make Competitive Bid
     Loans in response to any Competitive Bid Quote Request.  Each Competitive
     Bid Quote must comply with the requirements of this Section 4.5 and must be
     submitted to the Administrative Agent by telex or facsimile transmission at
     its offices as specified in or pursuant to Section 22 not later than (x)
     2:00 p.m. (New York time) on the fourth Eurodollar Business Day prior to
     the proposed Drawdown Date, in the case of a LIBOR Competitive Bid Loan or
     (y) 10:00 a.m. (New 

<PAGE>

     York time) on the proposed Drawdown Date, in the case of an Absolute 
     Competitive Bid Loan, PROVIDED that Competitive Bid Quotes may be 
     submitted by the Administrative Agent in its capacity as a Bank only if 
     it submits its Competitive Bid Quote to the Borrower not later than (x) 
     one hour prior to the deadline for the other Banks, in the case of a 
     LIBOR Competitive Bid Loan or (y) 15 minutes prior to the deadline for 
     the other Banks, in the case of an Absolute Competitive Bid Loan.  
     Subject to the provisions of Sections 10 and 11 hereof, any Competitive 
     Bid Quote so made shall be irrevocable except with the written consent 
     of the Administrative Agent given on the instructions of the Borrower.

          (b)  Each Competitive Bid Quote shall be in substantially the form of
     EXHIBIT J hereto and shall in any case specify:

               (i)  the proposed Drawdown Date;

               (ii)  the principal amount of the Competitive Bid Loan for which
          each proposal is being made, which principal amount (w) may be greater
          than or less than the Commitment of the quoting Bank, (x) must be
          $5,000,000 or a larger multiple of $1,000,000, (y) may not exceed the
          aggregate principal amount of Competitive Bid Loans for which offers
          were requested and (z) may be subject to an aggregate limitation as to
          the principal amount of Competitive Bid Loans for which offers being
          made by such quoting Bank may be accepted;

               (iii)  the Interest Period(s) for which Competitive Bid Quotes
          are being submitted;

               (iv)  in the case of a LIBOR Competitive Bid Loan, the margin
          above or below the applicable LIBOR Rate (the "Competitive Bid
          Margin") offered for each such Competitive Bid Loan, expressed as a
          percentage (specified to the nearest 1/10,000th of 1%) to be added to
          or subtracted from such LIBOR Rate;

               (v)  in the case of an Absolute Competitive Bid Loan, the rate of
          interest per annum (specified to the nearest 1/10,000th of 1%) (the
          "Competitive Bid Rate") offered for each such Absolute Competitive Bid
          Loan; and

               (vi)  the identity of the quoting Bank.

     A Competitive Bid Quote may include up to five separate offers by the
     quoting Bank with respect to each Interest Period specified in the related
     Invitation for Competitive Bid Quotes.

          (c)  Any Competitive Bid Quote shall be disregarded if it:

               (i)  is not substantially in the form of EXHIBIT J hereto;

               (ii)  contains qualifying, conditional or similar language;
<PAGE>
               (iii)  proposes terms other than or in addition to those set
          forth in the applicable Invitation for Competitive Bid Quotes; or

               (iv)  arrives after the time set forth in Section 4.5(a) hereof.

     SECTION 4.6.  NOTICE TO BORROWER.  The Administrative Agent shall 
promptly notify the Borrower of the terms (x) of any Competitive Bid Quote 
submitted by a Bank that is in accordance with Section 4.5 and (y) of any 
Competitive Bid Quote that amends, modifies or is otherwise inconsistent with 
a previous Competitive Bid Quote submitted by such Bank with respect to the 
same Competitive Bid Quote Request.  Any such subsequent Competitive Bid 
Quote shall be disregarded by the Administrative Agent unless such subsequent 
Competitive Bid Quote is submitted solely to correct a manifest error in such 
former Competitive Bid Quote.  The Administrative Agent's notice to the 
Borrower shall specify (A) the aggregate principal amount of Competitive Bid 
Loans for which offers have been received for each Interest Period specified 
in the related Competitive Bid Quote Request, (B) the respective principal 
amounts and Competitive Bid Margins or Competitive Bid Rates, as the case may 
be, so offered, and the identity of the respective Banks submitting such 
offers, and (C) if applicable, limitations on the aggregate principal amount 
of Competitive Bid Loans for which offers in any single Competitive Bid Quote 
may be accepted.

     SECTION 4.7.  ACCEPTANCE AND NOTICE BY BORROWER AND ADMINISTRATIVE 
AGENT.  Not later than 11:00 a.m. (New York time) on (x) the third Eurodollar 
Business Day prior to the proposed Drawdown Date, in the case of a LIBOR 
Competitive Bid Loan or (y) the proposed Drawdown Date, in the case of an 
Absolute Competitive Bid Loan, the Borrower shall notify the Administrative 
Agent of its acceptance or non-acceptance of each Competitive Bid Quote in 
substantially the form of EXHIBIT K hereto.  The Borrower may accept any 
Competitive Bid Quote in whole or in part; provided that:

          (i)  the aggregate principal amount of each Competitive Bid Loan may
     not exceed the applicable amount set forth in the related Competitive Bid
     Quote Request;

          (ii)  acceptance of offers may only be made on the basis of ascending
     Competitive Bid Margins or Competitive Bid Rates, as the case may be, and

          (iii)  the Borrower may not accept any offer that is described in
     subsection 4.5(c) or that otherwise fails to comply with the requirements
     of this Agreement.

The Administrative Agent shall promptly notify each Bank which submitted a 
Competitive Bid Quote of the Borrower's acceptance or non-acceptance thereof. 
At the request of any Bank which submitted a Competitive Bid Quote and with 
the consent of the Borrower, the Administrative Agent will promptly notify 
all Banks which submitted Competitive Bid Quotes of (a) the aggregate 
principal amount of, and (b) the range of Competitive Bid Rates or 
Competitive Bid Margins of, the accepted Competitive Bid Loans for each 
requested Interest Period.

     SECTION 4.8.  ALLOCATION BY ADMINISTRATIVE AGENT.  If offers are made by 
two or more Banks with the same Competitive Bid Margin or Competitive Bid 
Rate, as the case may be, for a greater 

<PAGE>

aggregate principal amount than the amount in respect of which offers are 
accepted for the related Interest Period, the principal amount of Competitive 
Bid Loans in respect of which such offers are accepted shall be allocated by 
the Administrative Agent among such Banks as nearly as possible (in such 
multiples, not less than $1,000,000, as the Administrative Agent may deem 
appropriate) in proportion to the aggregate principal amounts of such offers. 
 Determination by the Administrative Agent of the amounts of Competitive Bid 
Loans shall be conclusive in the absence of manifest error.

     SECTION 4.9.  FUNDING OF COMPETITIVE BID LOANS.  If, on or prior to the 
Drawdown Date of any Competitive Bid Loan, the Total Commitment has not 
terminated in full and if, on such Drawdown Date, the applicable conditions 
of Sections 10 and 11 hereof are satisfied, the Bank or Banks whose offers 
the Borrower has accepted will fund each Competitive Bid Loan so accepted.  
Such Bank or Banks will make such Competitive Bid Loans by crediting the 
Administrative Agent for further credit to the Borrower's specified account 
with the Administrative Agent, in immediately available funds not later than 
1:00 p.m. (New York time) on such Drawdown Date.

     SECTION 4.10.  FUNDING LOSSES.  If, after acceptance of any Competitive 
Bid Quote pursuant to Section 4, the Borrower (i) fails to borrow any 
Competitive Bid Loan so accepted on the date specified therefor, or (ii) 
repays the outstanding amount of the Competitive Bid Loan prior to the last 
day of the Interest Period relating thereto, the Borrower shall indemnify the 
Bank making such Competitive Bid Quote or funding such Competitive Bid Loan 
against any loss or expense incurred by reason of the liquidation or 
reemployment of deposits or other funds acquired by such Bank to fund or 
maintain such unborrowed Loans, including, without limitation compensation as 
provided in Section 5.8.

     SECTION 4.11.  REPAYMENT OF COMPETITIVE BID LOANS; INTEREST.  The 
principal of each Competitive Bid Loan shall become absolutely due and 
payable by the Borrower on the last day of the Interest Period relating 
thereto, and the Borrower hereby absolutely and unconditionally promises to 
pay to the Administrative Agent for the account of the relevant Banks at or 
before 1:00 p.m. (New York time) on the last day of the Interest Periods 
relating thereto the principal amount of all such Competitive Bid Loans, plus 
interest thereon at the applicable Competitive Bid Rates.  The Competitive 
Bid Loans shall bear interest at the rate per annum specified in the 
applicable Competitive Bid Quotes.  Interest on the Competitive Bid Loans 
shall be payable (a) on the last day of the applicable Interest Periods, and 
if any such Interest Period is longer than three months, also on the last day 
of the third month following the commencement of such Interest Period, and 
(b) on the Maturity Date for all Loans.  Subject to the terms of this 
Agreement, the Borrower may make Competitive Bid Quote Requests with respect 
to new borrowings of any amounts so repaid prior to the Maturity Date.

     SECTION 5.  PROVISIONS RELATING TO ALL LOANS AND LETTERS OF CREDIT.

     SECTION 5.1.  PAYMENTS.

          (a)  All payments of principal, interest, Reimbursement Obligations,
     fees (other than the Issuance Fee) and any other amounts due hereunder or
     under any of the other Loan Documents shall be made to the Administrative
     Agent at its Head Office in 

<PAGE>

     immediately available funds by 11:00 a.m. (New York time) on any due 
     date.  Subject to the provisions of Section 29, if a payment is 
     received by the Administrative Agent at or before 1:00 p.m. (New York 
     time) on any Business Day, the Administrative Agent shall on the same
     Business Day transfer in immediately available funds, as applicable, to (1)
     each of the Banks, their pro rata portion of such payment in accordance
     with their respective Commitment Percentages, in the case of payments with
     respect to Syndicated Loans and Letters of Credit, (2) MGT in the case of
     payments with respect to Swing Line Loans, and (3) the appropriate Bank(s),
     in the case of payments with respect to Competitive Bid Loans.  If such
     payment is received by the Administrative Agent after 1:00 p.m. (New York
     time) on any Business Day, such transfer shall be made by the
     Administrative Agent to the applicable Bank(s) on the next Business Day. 
     In the event that the Administrative Agent fails to make such transfer to
     any Bank as set forth above, the Administrative Agent shall pay to such
     Bank on demand an amount equal to the product of (i) the average, computed
     for the period referred to in clause (iii) below, of the weighted average
     interest rate paid by such Bank for funds acquired by such Bank during each
     day included in such period, TIMES (ii) the amount (A) equal to such Bank's
     Commitment Percentage of such payment in the case of payments under clause
     (1) above, or (B) of such payment to which such Bank is entitled in the
     case of payments with respect to Competitive Bid Loans and Swing Line
     Loans, TIMES (iii) a fraction, the numerator of which is the number of days
     that elapse from and including the date of payment to and including the
     date on which the amount due to such Bank shall become immediately
     available to such Bank, and the denominator of which is 365.  A statement
     of such Bank submitted to the applicable Administrative Agent with respect
     to any amounts owing under this paragraph shall be PRIMA FACIE evidence of
     the amount due and owing to such Bank by the Administrative Agent.

          (b)  Each Bank that is not incorporated or organized under the laws of
     the United States of America or a state thereof or the District of Columbia
     (a "Non-U.S. Bank") agrees that, prior to the first date on which any
     payment is due to it hereunder, it will deliver to the Borrower and the
     Administrative Agent two duly completed copies of United States Internal
     Revenue Service Form 1001 or 4224 or successor applicable form, as the case
     may be, certifying in each case that such Non-U.S. Bank is entitled to
     receive payments under this Agreement and the Notes payable to it, without
     deduction or withholding of any United States federal income taxes.  Each
     Non-U.S. Bank that so delivers a Form 1001 or 4224 pursuant to the
     preceding sentence further undertakes to deliver to each of the Borrower
     and the Administrative Agent two further copies of Form 1001 or 4224 or
     successor applicable form, or other manner of certification, as the case
     may be, on or before the date that any such letter or form expires or
     becomes obsolete or after the occurrence of any event requiring a change in
     the most recent form previously delivered by it to the Borrower, and such
     extensions or renewals thereof as may reasonably be requested by the
     Borrower, certifying in the case of a Form 1001 or 4224 that such Non-U.S.
     Bank is entitled to receive payments under this Agreement and the Notes
     without deduction or withholding of any United States federal income taxes,
     unless in any such case an event (including, without limitation, any change
     in treaty, law or regulation) has occurred prior to the date on which any
     such delivery would otherwise be 

<PAGE>

     required which renders all such forms inapplicable or which would prevent 
     such Non-U.S. Bank from duly completing and delivering any such form with 
     respect to it and such Non-U.S. Bank advises the Borrower that it is not 
     capable of receiving payments without any deduction or withholding of 
     United States federal income tax.

          (c)  The Borrower shall not be required to pay any additional amounts
     to any Non-U.S. Bank in respect of United States Federal withholding tax
     pursuant to Section 17 to the extent that (i) the obligation to withhold
     amounts with respect to United States Federal withholding tax existed on
     the date such Non-U.S. Bank became a party to this Agreement or, with
     respect to payments to a different lending office designated by the Non-
     U.S. Bank as its applicable lending office (a "New Lending Office"), the
     date such Non-U.S. Bank designated such New Lending Office with respect to
     a Loan; provided, however, that this clause (i) shall not apply to any
     transferee or New Lending Office as a result of an assignment, transfer or
     designation made at the request of the Borrower; and provided further,
     however, that this clause (i) shall not apply to the extent the indemnity
     payment or additional amounts any transferee, or Bank through a New Lending
     Office, would be entitled to receive without regard to this clause (i) do
     not exceed the indemnity payment or additional amounts that the Person
     making the assignment or transfer to such transferee, or Bank making the
     designation of such New Lending Office, would have been entitled to receive
     in the absence of such assignment, transfer or designation; or (ii) the
     obligation to pay such additional amounts would not have arisen but for a
     failure by such Non-U.S. Bank to comply with the provisions of paragraph
     (c) above.

          (d)  Notwithstanding the foregoing, each Bank agrees to use reasonable
     efforts (consistent with legal and regulatory restrictions) to change its
     lending office to avoid or to minimize any amounts otherwise payable under
     Section 17 in each case solely if such change can be made in a manner so
     that such Bank, in its sole determination, suffers no legal, economic or
     regulatory disadvantage.

     SECTION 5.2.  MANDATORY REPAYMENTS OF THE LOANS.  If at any time the sum 
of the outstanding principal amount of the Loans PLUS the Maximum Drawing 
Amount of all outstanding Letters of Credit exceeds the Total Commitment, 
whether by reduction of the Total Commitment or otherwise, then the Borrower 
shall immediately pay the amount of such excess to the Administrative Agent, 
(a) for application to the Loans, first to Syndicated Loans, then to 
Competitive Bid Loans, subject to Section 5.8, or (b) if no Loans shall be 
outstanding, to be held by the Administrative Agent for the benefit of the 
Banks as collateral security for such excess Maximum Drawing Amount and the 
Borrower hereby grants a security interest in such amount to the 
Administrative Agent for the benefit of the Banks; PROVIDED, HOWEVER, that if 
the amount of cash collateral held by the Administrative Agent pursuant to 
this Section 5.2 exceeds the Maximum Drawing Amount required to be 
collateralized from time to time, the Administrative Agent shall return such 
excess to the Borrower.

     SECTION 5.3.  COMPUTATIONS.  Except as otherwise expressly provided 
herein, all computations of interest, Facility Fees, Utilization Fees, Letter 
of Credit Fees or other fees shall be based on a 360-day year and paid for 
the actual number of days elapsed, except that computations based on 

<PAGE>

the Administrative Agent's "prime rate" shall be based on a 365 or 366, as 
applicable, day year and paid for the actual number of days elapsed.  
Whenever a payment hereunder or under any of the other Loan Documents becomes 
due on a day that is not a Business Day, the due date for such payment shall 
be extended to the next succeeding Business Day, and interest shall accrue 
during such extension; PROVIDED THAT for any Interest Period for any 
Eurodollar Loan if such next succeeding Business Day falls in the next 
succeeding calendar month or after the Maturity Date, it shall be deemed to 
end on the next preceding Business Day.

     SECTION 5.4.  ILLEGALITY; INABILITY TO DETERMINE EURODOLLAR RATE.  
Notwithstanding any other provision of this Agreement (other than Section 
5.10), if (a) the introduction of, any change in, or any change in the 
interpretation of, any law or regulation applicable to any Bank or the 
Administrative Agent shall make it unlawful, or any central bank or other 
governmental authority having jurisdiction thereof shall assert that it is 
unlawful, for any Bank or the Administrative Agent to perform its obligations 
in respect of any Eurodollar Loans, or (b) if any Bank or the Administrative 
Agent, as applicable, shall reasonably determine with respect to Eurodollar 
Loans that (i) by reason of circumstances affecting any Eurodollar interbank 
market, adequate and reasonable methods do not exist for ascertaining the 
Eurodollar Rate which would otherwise be applicable during any Interest 
Period, or (ii) deposits of Dollars in the relevant amount for the relevant 
Interest Period are not available to such Bank or the Administrative Agent in 
any Eurodollar interbank market, or (iii) the Eurodollar Rate does not or 
will not accurately reflect the cost to the Bank or the Administrative Agent 
of obtaining or maintaining the Eurodollar Loans during any Interest Period, 
then such Bank or the Administrative Agent shall promptly give telephonic, 
telex or cable notice of such determination to the Borrower (which notice 
shall be conclusive and binding upon the Borrower).  Upon such notification 
by the Bank or the Administrative Agent, the obligation of the Banks and the 
Administrative Agent to make Eurodollar Loans shall be suspended until the 
Banks or the Administrative Agent, as the case may be, determine that such 
circumstances no longer exist, and to the extent permitted by law the 
outstanding Eurodollar Loans shall continue to bear interest at the 
applicable rate based on the Eurodollar Rate until the end of the applicable 
Interest Period, and thereafter shall be deemed converted to Base Rate Loans 
in equal principal amounts to such former Eurodollar Loans.

     SECTION 5.5.  ADDITIONAL COSTS, ETC.  If any present or future 
applicable law (which expression, as used herein, includes statutes, rules 
and regulations thereunder and interpretations thereof by any competent court 
or by any governmental or other regulatory body or official charged with the 
administration or the interpretation thereof and requests, directives, 
instructions and notices at any time or from time to time hereafter made upon 
or otherwise issued to any Bank by any central bank or other fiscal, monetary 
or other authority, whether or not having the force of law) shall:

          (a)  subject such Bank to any tax, levy, impost, duty, charge, fee,
     deduction or withholding of any nature with respect to this Agreement, the
     other Loan Documents, such Bank's Commitment or the Loans (other than taxes
     based upon or measured by the income or profits of such Bank imposed by the
     jurisdiction of its incorporation or organization, or the location of its
     lending office); or

<PAGE>

          (b)  materially change the basis of taxation (except for changes in
     taxes on income or profits of such Bank imposed by the jurisdiction of its
     incorporation or organization, or the location of its lending office) of
     payments to such Bank of the principal or of the interest on any Loans or
     any other amounts payable to such Bank under this Agreement or the other
     Loan Documents; or

          (c)  except as provided in Section 5.6 or as otherwise reflected in
     the Base Rate, the Eurodollar Rate, or the Competitive Bid Rate, impose or
     increase or render applicable (other than to the extent specifically
     provided for elsewhere in this Agreement) any special deposit, reserve,
     assessment, liquidity, capital adequacy or other similar requirements
     (whether or not having the force of law) against assets held by, or
     deposits in or for the account of, or loans by, or commitments of, an
     office of any Bank with respect to this Agreement, the other Loan
     Documents, such Bank's Commitment or the Loans; or

          (d)  impose on such Bank any other conditions or requirements with
     respect to this Agreement, the other Loan Documents, the Loans, such Bank's
     Commitment or any class of loans or commitments of which any of the Loans
     or such Bank's Commitment forms a part, and the result of any of the
     foregoing is:

               (i)  to increase the cost to such Bank of making, funding,
          issuing, renewing, extending or maintaining the Loans or such Bank's
          Commitment or issuing or participating in Letters of Credit;

               (ii) to reduce the amount of principal, interest or other amount
          payable to such Bank hereunder on account of such Bank's Commitment,
          the Loans or the Reimbursement Obligations; or

               (iii)     to require such Bank to make any payment or to forego
          any interest or other sum payable hereunder, the amount of which
          payment or foregone interest or other sum is calculated by reference
          to the gross amount of any sum receivable or deemed received by such
          Bank from the Borrower hereunder,

          then, and in each such case, the Borrower will, upon demand made by
     such Bank at any time and from time to time as often as the occasion
     therefore may arise (which demand shall be accompanied by a statement
     setting forth the basis of such demand which shall be conclusive absent
     manifest error), pay such reasonable additional amounts as will be
     sufficient to compensate such Bank for such additional costs, reduction,
     payment or foregone interest or other sum.

     SECTION 5.6.  CAPITAL ADEQUACY.  If any Bank shall have determined that, 
after the date hereof, the adoption of any applicable law, rule or regulation 
regarding capital adequacy, or any change in any such law, rule, or 
regulation, or any change in the interpretation or administration thereof by 
any governmental authority, central bank or comparable 

<PAGE>

agency charged with the interpretation or administration thereof, or any 
request or directive regarding capital adequacy (whether or not having the 
force of law) of any such authority, central bank or comparable agency, has 
or would have the effect of reducing the rate of return on capital of such 
Bank (or any corporation controlling such Bank) as a consequence of such 
Bank's obligations hereunder to a level below that which such Bank (or any 
corporation controlling such Bank) could have achieved but for such adoption, 
change, request or directive (taking into consideration its policies with 
respect to capital adequacy) by an amount deemed by such Bank to be material, 
then from time to time, within 15 days after demand by such Bank, the 
Borrower shall pay to such Bank such additional amount or amounts as will, in 
such Bank's reasonable determination, fairly compensate such Bank (or any 
corporation controlling such Bank) for such reduction.  Each Bank shall 
allocate such cost increases among its customers in good faith and on an 
equitable basis.

     SECTION 5.7.  CERTIFICATE.  A certificate setting forth the additional 
amounts payable pursuant to Section 5.5 or Section 5.6 and a reasonable 
explanation of such amounts which are due, submitted by any Bank to the 
Borrower, shall be conclusive, absent manifest error, that such amounts are 
due and owing.

     SECTION 5.8.  EURODOLLAR AND COMPETITIVE BID INDEMNITY.  The Borrower 
agrees to indemnify the Banks and the Administrative Agent and to hold them 
harmless from and against any reasonable loss, cost or expense that any such 
Bank and the Administrative Agent may sustain or incur as a consequence of 
(a) the default by the Borrower in payment of the principal amount of or any 
interest on any Eurodollar Loans or Competitive Bid Loans as and when due and 
payable, including any such loss or expense arising from interest or fees 
payable by any Bank or the Administrative Agent to lenders of funds obtained 
by it in order to maintain its Eurodollar Loans or Competitive Bid Loans, (b) 
the default by the Borrower in making a borrowing of a Eurodollar Loan or 
Competitive Bid Loan or conversion of a Eurodollar Loan or a prepayment of a 
Eurodollar or Competitive Bid Loan other than pursuant to Section 2.5(b) 
after the Borrower has given (or is deemed to have given) a Syndicated Loan 
Request, a notice pursuant to Section 2.7 or a Notice of Acceptance/Rejection 
of Competitive Bid Quote(s), or a notice pursuant to Section 2.10, and (c) 
the making of any payment of a Eurodollar Loan or Competitive Bid Loan, or 
the making of any conversion of any Eurodollar Loan to a Base Rate Loan on a 
day that is not the last day of the applicable Interest Period with respect 
thereto. Such loss, cost, or reasonable expense shall include an amount equal 
to the excess, if any, as reasonably determined by each Bank of (i) its cost 
of obtaining the funds for (A) the Eurodollar Loan being paid, prepaid, 
converted, not converted, reallocated, or not borrowed, as the case may be 
(based on the Eurodollar Rate), or (B) the Competitive Bid Loan being paid, 
prepaid, or not borrowed, as the case may be (based on the Competitive Bid 
Rate) for the period from the date of such payment, prepayment, conversion, 
or failure to borrow  or convert, as the case may be, to the last day of the 
Interest Period for such Loan (or, in the case of a failure to borrow, the 
Interest Period for the Loan which would have commenced on the date of such 
failure to borrow) over (ii) the amount of interest (as reasonably determined 
by such Bank) that would be realized by such Bank in reemploying the funds so 
paid, prepaid, converted, or not borrowed, converted, or prepaid for such 
period or Interest Period, as the case may be, which determinations shall be 
conclusive absent manifest error.

     SECTION 5.9.  INTEREST ON OVERDUE AMOUNTS.  Overdue principal and (to 
the extent permitted by applicable law) interest on the Loans and all other 
overdue amounts payable hereunder or under 

<PAGE>

any of the other Loan Documents shall bear interest compounded monthly and 
payable on demand at a rate per annum equal to the Base Rate PLUS 2%, until 
such amount shall be paid in full (after as well as before judgment).

     SECTION 5.10.  INTEREST LIMITATION.  Notwithstanding any other term of 
this Agreement or the Notes, any other Loan Document or any other document 
referred to  herein or therein, the maximum amount of interest which may be 
charged to or collected from any Person liable hereunder or under the Notes 
by any Bank shall be absolutely limited to, and shall in no event exceed, the 
maximum amount of interest which could lawfully be charged or collected by 
such Bank under applicable laws (including, to the extent applicable, the 
provisions of Section 5197 of the Revised Statutes of the United States of 
America, as amended, and 12 U.S.C. Section 85, as amended).

     SECTION 5.11.  REASONABLE EFFORTS TO MITIGATE.  Each Bank agrees that as 
promptly as practicable after it becomes aware of the occurrence of an event 
or the existence of a condition that would cause it to be affected under 
Sections 5.4, 5.5 or 5.6, such Bank will give notice thereof to the Borrower, 
with a copy to the Administrative Agent and, to the extent so requested by 
the Borrower and not inconsistent with such Bank's internal policies, such 
Bank shall use reasonable efforts and take such actions as are reasonably 
appropriate if as a result thereof the additional moneys which would 
otherwise be required to be paid to such Bank pursuant to such sections would 
be materially reduced, or the illegality or other adverse circumstances which 
would otherwise require a conversion of such Loans or result in the inability 
to make such Loans pursuant to such sections would cease to exist, and in 
each case if, as determined by such Bank in its sole discretion, the taking 
such actions would not adversely affect such Loans or such Bank or otherwise 
be disadvantageous to such Bank.

     SECTION 5.12.  REPLACEMENT OF BANKS.  If any Bank (an "Affected Bank") 
(i) makes demand upon the Borrower for (or if the Borrower is otherwise 
required to pay) amounts pursuant to Sections 5.5 or 5.6, (ii) is unable to 
make or maintain Eurodollar Loans as a result of a condition described in 
Section 5.4 or (iii) defaults in its obligation to make Loans or to 
participate in Letters of Credit in accordance with the terms of this 
Agreement (such Bank being referred to as a "Defaulting Bank"), the Borrower 
may, within 90 days of receipt of such demand, notice (or the occurrence of 
such other event causing the Borrower to be required to pay such compensation 
or causing Section 5.4 to be applicable), or default, as the case may be, by 
notice (a "Replacement Notice") in writing to the Administrative Agent and 
such Affected Bank (A) request the Affected Bank to cooperate with the 
Borrower in obtaining a replacement bank satisfactory to the Administrative 
Agent and the Borrower (the "Replacement Bank") as provided herein, but none 
of such Banks shall be under an obligation to find a Replacement Bank; (B) 
request the non-Affected Banks to acquire and assume all of the Affected 
Bank's Loans and Commitment, and to participate in Letters of Credit as 
provided herein, but none of such Banks shall be under an obligation to do 
so; or (C) designate a Replacement Bank reasonably satisfactory to the 
Administrative Agent.  If any satisfactory Replacement Bank shall be 
obtained, and/or any of the non-Affected Banks shall agree to acquire and 
assume all of the Affected Bank's Loans and Commitment, and to participate in 
Letters of Credit then such Affected Bank shall, so long as no Event of 
Default shall have occurred and be continuing, assign, in accordance with 
Section 20, all of its Commitment, Loans, Notes and other rights and 
obligations under this Agreement and all other Loan 

<PAGE>

Documents to such Replacement Bank or non-Affected Banks, as the case may be, 
in exchange for payment of the principal amount so assigned and all interest 
and fees accrued on the amount so assigned, plus all other Obligations then 
due and payable to the Affected Bank; PROVIDED, HOWEVER, that (x) such 
assignment shall be without recourse, representation or warranty and shall be 
on terms and conditions reasonably satisfactory to such Affected Bank and 
such Replacement Bank and/or non-Affected Banks, as the case may be, and (y) 
prior to any such assignment, the Borrower shall have paid to such Affected 
Bank all amounts properly demanded and unreimbursed under Sections 5.5, 5.6 
and 5.8.  Upon the effective date of such assignment, the Borrower shall 
issue replacement Notes to such Replacement Bank and/or non-Affected Banks, 
as the case may be, and such Replacement Bank shall become a "Bank" for all 
purposes under this Agreement and the other Loan Documents.

     SECTION 5.13.  ADVANCES BY ADMINISTRATIVE AGENT.  The Administrative 
Agent may (unless earlier notified to the contrary by any Bank by 12:00 noon 
(New York time) one (1) Business Day prior to any Drawdown Date) assume that 
each Bank has made available (or will before the end of such Business Day 
make available) to the Administrative Agent the amount of such Bank's 
Commitment Percentage with respect to the Loans (or, in the case of 
Competitive Bid Loans, the amount of such Bank's accepted offers of such 
Loans, if any) to be made on such Drawdown Date, and the Administrative Agent 
may (but shall not be required to), in reliance upon such assumption, make 
available to the Borrower a corresponding amount.  If any Bank makes such 
amount available to the Administrative Agent on a date after such Drawdown 
Date, such Bank shall pay the Administrative Agent on demand an amount equal 
to the product of (i) the average, computed for the period referred to in 
clause (iii) below, of the weighted average annual interest rate paid by the 
Administrative Agent for federal funds acquired by the Administrative Agent 
during each day included in such period TIMES (ii) the amount equal to such 
Bank's Commitment Percentage of such Syndicated Loan (or, in the case of 
Competitive Bid Loans and Swing Line Loans, the amount of such Bank's 
accepted offer of such Competitive Bid Loans, if any, and portion of such 
Swing Line Loans) TIMES (iii) a fraction, the numerator of which is the 
number of days that elapse from and including such Drawdown Date to but not 
including the date on which the amount equal to such Bank's Commitment 
Percentage of such Loans, or the amount of such Bank's accepted offers of 
such Competitive Bid Loans, if any, and portion of Swing Line Loans, shall 
become immediately available to the Administrative Agent, and the denominator 
of which is 365.  A statement of the Administrative Agent submitted to such 
Bank with respect to any amounts owing under this paragraph shall be PRIMA 
FACIE evidence of the amount due and owing to the Administrative Agent by 
such Bank.  If such amount is not in fact made available to the 
Administrative Agent by such Bank within three (3) Business Days of such 
Drawdown Date, the Administrative Agent shall be entitled to recover such 
amount from such Borrower, with interest thereon at the applicable rate per 
annum.

     SECTION 6.  REPRESENTATIONS AND WARRANTIES.  The Borrower (and each of 
the Guarantors, where applicable) represents and warrants to the Banks that:

     SECTION 6.1.  CORPORATE AUTHORITY.

<PAGE>

          (a)  INCORPORATION; GOOD STANDING.  The Borrower and each of its
     Subsidiaries (i) is a corporation duly organized, validly existing and in
     good standing under the laws of its respective jurisdiction of
     incorporation, (ii) has all requisite corporate power to own its property
     and conduct its business as now conducted and as presently contemplated,
     and (iii) is in good standing as a foreign corporation and is duly
     authorized to do business in each jurisdiction in which its property or
     business as presently conducted or contemplated makes such qualification
     necessary, except where a failure to be so qualified would not have a
     material adverse effect on the business, assets or financial condition of
     the Borrower and its Subsidiaries as a whole.

          (b)  AUTHORIZATION.  The execution, delivery and performance of its
     Loan Documents and the transactions contemplated hereby and thereby (i) are
     within the corporate authority of the Borrower and each of the Guarantors,
     (ii) have been duly authorized by all necessary corporate proceedings on
     the part of each of the Borrower and the Guarantors, (iii) do not conflict
     with or result in any breach or contravention of any provision of law,
     statute, rule or regulation to which any of the Borrower or the Guarantors
     or any of their Subsidiaries is subject or any judgment, order, writ,
     injunction, license or permit applicable to the Borrower, any of the
     Guarantors or any of their Subsidiaries so as to materially adversely
     affect the assets, business or any activity of the Borrower, the Guarantors
     and their Subsidiaries as a whole, and (iv) do not conflict with any
     provision of the corporate charter or bylaws of the Borrower, the
     Guarantors or any Subsidiary or any agreement or other instrument binding
     upon the Borrower, the Guarantors or any of their Subsidiaries.

          (c)  ENFORCEABILITY.  The execution, delivery and performance of the
     Loan Documents by the Borrower and the Guarantors will result in valid and
     legally binding obligations of the Borrower and the Guarantors enforceable
     against them in accordance with the respective terms and provisions hereof
     and thereof, except as enforceability is limited by bankruptcy, insolvency,
     reorganization, moratorium or other laws relating to or affecting generally
     the enforcement of creditors' rights and except to the extent that
     availability of the remedy of specific performance or injunctive relief is
     subject to the discretion of the court before which any proceeding therefor
     may be brought.

     SECTION 6.2.  GOVERNMENTAL APPROVALS.  The execution, delivery and 
performance of the Loan Documents by the Borrower and the Guarantors and the 
consummation by the Borrower and the Guarantors of the transactions 
contemplated hereby and thereby do not require any approval or consent of, or 
filing with, any governmental agency or authority other than those already 
obtained and those required after the date hereof in connection with the 
Borrower's and its Subsidiaries' performance of their covenants contained in 
Sections 7, 8 and 9 hereof.

     SECTION 6.3.  TITLE TO PROPERTIES; LEASES.  The Borrower and its 
Subsidiaries own all of the assets reflected in the consolidated balance 
sheet as at the Interim Balance Sheet Date or acquired since that date 
(except property and assets operated under capital leases or sold or 
otherwise disposed of in the ordinary course of business since that date), 
subject to no mortgages, Capitalized 

<PAGE>

Leases, conditional sales agreements, title retention agreements, liens or 
other encumbrances except Permitted Liens.

     SECTION 6.4.  FINANCIAL STATEMENTS; SOLVENCY.  

          (a)  There have been furnished to the Banks consolidated balance
     sheets of the Borrower and its Subsidiaries and Old WMI and its
     Subsidiaries dated the Balance Sheet Date and consolidated statements of
     operations for the fiscal periods then ended, certified by the Accountants.
     In addition, there have been furnished to the Banks consolidated balance
     sheets of the Borrower and its Subsidiaries, and Old WMI and its
     Subsidiaries dated the Interim Balance Sheet Date and the related
     consolidated statements of operation for the fiscal quarter ending on the
     Interim Balance Sheet Date.  All said balance sheets and statements of
     operations have been prepared in accordance with GAAP (but, in the case of
     any of such financial statements which are unaudited, only to the extent
     GAAP is applicable to interim unaudited reports), fairly present the
     financial condition of the Borrower and its Subsidiaries on a consolidated
     basis, or Old WMI and its Subsidiaries on a consolidated basis, as at the
     close of business on the dates thereof and the results of operations for
     the periods then ended, subject, in the case of unaudited interim financial
     statements, to changes resulting from audit and normal year-end adjustments
     and to the absence of complete footnotes.  There are no contingent
     liabilities of the Borrower and its Subsidiaries or Old WMI and its
     Subsidiaries involving material amounts, known to the officers of the
     Borrower or Old WMI which have not been disclosed in said balance sheets
     and the related notes thereto or otherwise in writing to the Banks.

          (b)  The Borrower and its Subsidiaries on a consolidated basis and Old
     WMI and its Subsidiaries on a consolidated basis (both before and after
     giving effect to the transactions contemplated by this Agreement including
     the WMI Merger) are solvent (i.e., they have assets having a fair value in
     excess of the amount required to pay their probable liabilities on their
     existing debts as they become absolute and matured) and have, and expect to
     have, the ability to pay their debts from time to time incurred in
     connection therewith as such debts mature.

     SECTION 6.5.  NO MATERIAL CHANGES, ETC.  Since the Interim Balance Sheet 
Date, there have occurred no material adverse changes in the consolidated 
financial condition, business or assets of the Borrower and its Subsidiaries, 
taken together, or Old WMI and its Subsidiaries, taken together, as the case 
may be, as shown on or reflected in the consolidated balance sheets of the 
Borrower and its Subsidiaries or Old WMI and its Subsidiaries as at the 
Interim Balance Sheet Date, or the consolidated statements of income for the 
period then ended other than changes in the ordinary course of business which 
have not had any material adverse effect either individually or in the 
aggregate on the financial condition, business or assets of the Borrower and 
its Subsidiaries, taken together, or Old WMI and its Subsidiaries, taken 
together, as the case may be.  Since the Interim Balance Sheet Date, there 
have not been any Distributions (including Distributions by the Borrower and 
Old WMI) other than as permitted by Section 8.5 hereof, except as disclosed 
in the Disclosure Documents.

<PAGE>

     SECTION 6.6.  FRANCHISES, PATENTS, COPYRIGHTS, ETC.  The Borrower and 
each of its Subsidiaries possess all franchises, patents, copyrights, 
trademarks, trade names, licenses and permits, and rights in respect of the 
foregoing, adequate for the conduct of their business substantially as now 
conducted (other than those the absence of which would not have a material 
adverse effect on the business, operations or financial condition of the 
Borrower and its Subsidiaries as a whole) without known conflict with any 
rights of others other than a conflict which would not have a material 
adverse effect on the financial condition, business or assets of the Borrower 
and its Subsidiaries as a whole.

     SECTION 6.7.  LITIGATION.  Except as set forth on SCHEDULE 6.7 or in the 
Disclosure Documents, there are no actions, suits, proceedings or 
investigations of any kind pending or, to the knowledge of the Borrower or 
any of its Subsidiaries, threatened against the Borrower or any of its 
Subsidiaries before any court, tribunal or administrative agency or board 
which, either in any case or in the aggregate, could reasonably be expected 
to have a material adverse effect on the financial condition, business, or 
assets of the Borrower and its Subsidiaries, considered as a whole, or 
materially impair the right of the Borrower and its Subsidiaries, considered 
as a whole, to carry on business substantially as now conducted, or result in 
any substantial liability not adequately covered by insurance, or for which 
adequate reserves are not maintained on the consolidated balance sheet or 
which question the validity of any of the Loan Documents to which the 
Borrower or any of its Subsidiaries is a party, or any action taken or to be 
taken pursuant hereto or thereto.

     SECTION 6.8.  NO MATERIALLY ADVERSE CONTRACTS, ETC.  Neither the 
Borrower nor any of its Subsidiaries is subject to any charter, corporate or 
other legal restriction, or any judgment, decree, order, rule or regulation 
which in the judgment of the Borrower's or such Subsidiary's officers has or 
could reasonably be expected in the future to have a materially adverse 
effect on the business, assets or financial condition of the Borrower and its 
Subsidiaries, considered as a whole.  Neither the Borrower nor any of its 
Subsidiaries is a party to any contract or agreement which in the judgment of 
the Borrower's or its Subsidiary's officers has or could reasonably be 
expected to have any materially adverse effect on the financial condition, 
business or assets of the Borrower and its Subsidiaries, considered as a 
whole, except as otherwise reflected in adequate reserves as required by GAAP.

     SECTION 6.9.  COMPLIANCE WITH OTHER INSTRUMENTS, LAWS, ETC.  Neither the 
Borrower nor any of its Subsidiaries is (a) violating any provision of its 
charter documents or by-laws or (b) any agreement or instrument to which any 
of them may be subject or by which any of them or any of their properties may 
be bound or any decree, order, judgment, or any statute, license, rule or 
regulation, in a manner which could (in the case of such agreements or such 
instruments) reasonably be expected to result in the imposition of 
substantial penalties or materially and adversely affect the financial 
condition, business or assets of the Borrower and its Subsidiaries, 
considered as a whole.

     SECTION 6.10.  TAX STATUS.  The Borrower and its Subsidiaries have filed 
all federal, state, provincial and territorial income and all other tax 
returns, reports and declarations (or obtained extensions with respect 
thereto) required by applicable law to be filed by them (unless and only 

<PAGE>

to the extent that the Borrower or such Subsidiary has set aside on its books 
provisions reasonably adequate for the payment of all unpaid and unreported 
taxes as required by GAAP); and have paid all taxes and other governmental 
assessments and charges (other than taxes, assessments and other governmental 
charges imposed by jurisdictions other than the United States, Canada or any 
political subdivision thereof which in the aggregate are not material to the 
financial condition, business or assets of the Borrower or such Subsidiary on 
an individual basis or of the Borrower and its Subsidiaries on a consolidated 
basis) that are material in amount, shown or determined to be due on such 
returns, reports and declarations, except those being contested in good 
faith; and, as required by GAAP, have set aside on their books provisions 
reasonably adequate for the payment of all taxes for periods subsequent to 
the periods to which such returns, reports or declarations apply.  Except to 
the extent contested in the manner permitted in the preceding sentence, there 
are no unpaid taxes in any material amount claimed by the taxing authority of 
any jurisdiction to be due and owing by the Borrower or any Subsidiary, nor 
do the officers of the Borrower or any of its Subsidiaries know of any basis 
for any such claim.

     SECTION 6.11.  NO EVENT OF DEFAULT.  No Default or Event of Default has 
occurred and is continuing.

     SECTION 6.12.  HOLDING COMPANY AND INVESTMENT COMPANY ACTS.  Neither the 
Borrower nor any of its Subsidiaries is a "holding Company", or a "subsidiary 
Company" of a "holding Borrower", or an "affiliate" of a "holding Company", 
as such terms are defined in the Public Utility Holding Company Act of 1935; 
nor is any of them a "registered investment Company", or an "affiliated 
Company" or a "principal underwriter" of a "registered investment Company", 
as such terms are defined in the Investment Company Act of 1940, as amended.

     SECTION 6.13.  ABSENCE OF FINANCING STATEMENTS, ETC.  Except as 
permitted by Section 8.2 of this Agreement, there is no Indebtedness senior 
to the Obligations, and there is no effective financing statement, security 
agreement, chattel mortgage, real estate mortgage or other document filed or 
recorded with any filing records, registry, or other public office, which 
purports to cover, affect or give notice of any present or possible future 
lien on, or security interest in, any assets or property of the Borrower or 
any of its Subsidiaries or right thereunder.

     SECTION 6.14.  EMPLOYEE BENEFIT PLANS.

     SECTION 6.14.1.  IN GENERAL.  Each Employee Benefit Plan has been 
maintained and operated in compliance in all material respects with the 
provisions of ERISA and/or all Applicable Canadian Pension Legislation, as 
applicable, and, to the extent applicable, the Code, including but not 
limited to the provisions thereunder respecting prohibited transactions. 
Promptly upon the request of any Bank or the Administrative Agent, the 
Borrower will furnish to the Administrative Agent the most recently completed 
annual report, Form 5500, with all required attachments, and actuarial 
statement required to be submitted under Section 103(d) of ERISA, with 
respect to each Guaranteed Pension Plan.

          SECTION 6.14.2.  TERMINABILITY OF WELFARE PLANS.  Under each 
Employee Benefit Plan which is an employee welfare benefit plan within the 
meaning of Section 3(1) or Section 3(2)(B) of ERISA, no 

<PAGE>

benefits are due unless the event giving rise to the benefit entitlement 
occurs prior to plan termination (except as required by Title I, Part 6 of 
ERISA) . The Borrower or an ERISA Affiliate, as appropriate, may terminate 
each such Plan at any time (or at any time subsequent to the expiration of 
any applicable bargaining agreement) in the discretion of the Borrower or 
such ERISA Affiliate without liability to any Person.

          SECTION 6.14.3.  GUARANTEED PENSION PLANS.  Each contribution 
required to be made to avoid the incurrence of an accumulated funding 
deficiency, the notice or lien provisions of Section 302(f) of ERISA, or 
otherwise, has been timely made.  No waiver of an accumulated funding 
deficiency or extension of amortization periods has been received with 
respect to any Guaranteed Pension Plan.  No liability to the PBGC (other than 
required insurance premiums, all of which have been paid) has been incurred 
by the Borrower or any ERISA Affiliate with respect to any Guaranteed Pension 
Plan and there has not been any ERISA Reportable Event, or any other event or 
condition which presents a material risk of termination of any Guaranteed 
Pension Plan by the PBGC. Based on the latest valuation of each Guaranteed 
Pension Plan (which in each case occurred within twelve months of the date of 
this representation), and on the actuarial methods and assumptions employed 
for that valuation, the aggregate benefit liabilities of all such Guaranteed 
Pension Plans within the meaning of Section 4001 of ERISA did not exceed the 
aggregate value of the assets of all such Guaranteed Pension Plans, 
disregarding for this purpose the benefit liabilities and assets of any 
Guaranteed Pension Plan with assets in excess of benefit liabilities.

          SECTION 6.14.4.  MULTIEMPLOYER PLANS.  Neither the Borrower nor any 
ERISA Affiliate has incurred any material liability (including secondary 
liability) to any Multiemployer Plan as a result of a complete or partial 
withdrawal from such Multiemployer Plan under Section 4201 of ERISA or as a 
result of a sale of assets described in Section 4204 of ERISA.  Neither the 
Borrower nor any ERISA Affiliate has been notified that any Multiemployer 
Plan is in reorganization or insolvent under and within the meaning of 
Section 4241 or Section 4245 of ERISA or that any Multiemployer Plan intends 
to terminate or has been terminated under Section 4041A of ERISA.

     SECTION 6.15.  ENVIRONMENTAL COMPLIANCE.  The Borrower and its 
Subsidiaries have taken all necessary steps to investigate the past and 
present condition and usage of the Real Property and the operations conducted 
by the Borrower and its Subsidiaries and, based upon such diligent 
investigation, have determined that, except as set forth on SCHEDULE 6.15 or 
the Disclosure Documents:

          (a)  Neither the Borrower, its Subsidiaries, nor any operator of their
     properties, is in violation, or alleged violation, of any judgment, decree,
     order, law, permit, license, rule or regulation pertaining to environmental
     matters, including without limitation, those arising under the Resource
     Conservation and Recovery Act ("RCRA"), the Comprehensive Environmental
     Response, Compensation and Liability Act of 1980 as amended ("CERCLA"), the
     Superfund Amendments and Reauthorization Act of 1986 ("SARA"), the Federal
     Clean Water Act, the Federal Clean Air Act, the Toxic Substances Control
     Act, or any applicable international, federal, state, provincial,
     territorial or local statute, regulation, ordinance, order or decree
     relating to health, safety, waste 

<PAGE>

     transportation or disposal, or the environment (the "Environmental Laws"), 
     which violation, individually or in the aggregate, would have a material 
     adverse effect on the business, assets or financial condition of the 
     Borrower and its Subsidiaries on a consolidated basis.

          (b)  Except with respect to any such matters which individually or in
     the aggregate would not reasonably be expected to have a material adverse
     effect on the business, assets or financial condition of the Borrower and
     its Subsidiaries on a consolidated basis, neither the Borrower nor any of
     its Subsidiaries has received notice from any third party including,
     without limitation: any federal, state, provincial, territorial or local
     governmental authority, (i) that any one of them has been identified by the
     United States Environmental Protection Agency ("EPA") as a potentially
     responsible party under CERCLA with respect to a site listed on the
     National Priorities List, 40 C.F.R. Part 300 Appendix B; (ii) that any
     hazardous waste, as defined by 42 U.S.C. Section 6903(5), any hazardous
     substances as defined by 42 U.S.C. Section 9601(14), any pollutant or
     contaminant as defined by 42 U.S.C. Section 9601(33) or any toxic
     substance, oil or hazardous materials or other chemicals or substances
     regulated by any Environmental Laws, excluding household hazardous waste
     ("Hazardous Substances"), which any one of them has generated, transported
     or disposed of, has been found at any site at which a federal, state,
     provincial, territorial or local agency or other third party has conducted
     or has ordered that the Borrower or any of its Subsidiaries conduct a
     remedial investigation, removal or other response action pursuant to any
     Environmental Law; or (iii) that it is or shall be a named party to any
     claim, action, cause of action, complaint, legal or administrative
     proceeding arising out of any third party's incurrence of costs, expenses,
     losses or damages of any kind whatsoever in connection with the Release of
     Hazardous Substances.

          (c)  (i) No portion of the Real Property or other assets of the
     Borrower and its Subsidiaries has been used for the handling, processing,
     storage or disposal of Hazardous Substances except in accordance with
     applicable Environmental Laws, except as would not reasonably be expected
     to have a material adverse effect on the business, assets or financial
     condition of the Borrower and its Subsidiaries on a consolidated basis;
     (ii) in the course of any activities conducted by the Borrower, its
     Subsidiaries, or operators of the Real Property or other assets of the
     Borrower and its Subsidiaries, no Hazardous Substances have been generated
     or are being used on such properties except in accordance with applicable
     Environmental Laws, except for occurrences that would not have a material
     adverse effect on the business, assets or financial condition of the
     Borrower and its Subsidiaries on a consolidated basis; (iii) there have
     been no unpermitted Releases or threatened Releases of Hazardous Substances
     on, upon, into or from the Real Property or other assets of the Borrower or
     its Subsidiaries, which Releases would have a material adverse effect on
     the value of such properties; (iv) to the best of the Borrower's and its
     Subsidiaries' knowledge, there have been no Releases on, upon, from or into
     any real property in the vicinity of the Real Property or other assets of
     the Borrower or its Subsidiaries which, through soil or groundwater
     contamination, may have come to be located on, and which would reasonably
     be expected to have a material 

<PAGE>

     adverse effect on the value of, such properties; and (v) in addition, 
     any Hazardous Substances that have been generated on the Real Property 
     or other assets of the Borrower or its Subsidiaries have been transported 
     offsite only by carriers having an identification number issued by the 
     EPA, treated or disposed of only by treatment or disposal facilities 
     maintaining valid permits as required under applicable Environmental
     Laws, which transporters and facilities have been and are, to the best 
     of the Borower's and its Subsidiaries' knowledge, operating in compliance 
     with such permits and applicable Environmental Laws.

          (d)  None of the Real Property or other assets of the Borrower or its
     Subsidiaries or any of the stock (or assets) being acquired with proceeds
     of Loans is or shall be subject to any applicable environmental clean-up
     responsibility law or environmental restrictive transfer law or regulation,
     by virtue of the transactions set forth herein and contemplated hereby.

     SECTION 6.16.  TRUE COPIES OF CHARTER AND OTHER DOCUMENTS.  Each of the 
Borrower and the Guarantors has furnished the Administrative Agent as of the 
Effective Date, true and complete copies of (a) all charter and other 
incorporation documents (together with any amendments thereto) and (b) 
by-laws (together with any amendments thereto).

     SECTION 6.17.  DISCLOSURE.  No representation or warranty made by the 
Borrower or any Guarantor in this Agreement or in any agreement, instrument, 
document, certificate, statement or letter furnished to the Banks or the 
Administrative Agent by or on behalf of or at the request of the Borrower and 
the Guarantors in connection with any of the transactions contemplated by the 
Loan Documents contains any untrue statement of a material fact or omits to 
state a material fact necessary in order to make the statements contained 
therein not misleading in light of the circumstances in which they are made.

     SECTION 6.18.  PERMITS AND GOVERNMENTAL AUTHORITY.  All permits (other 
than those the absence of which would not have a material adverse effect on 
the business, operations or financial condition of the Borrower and its 
Subsidiaries as a whole) required for the construction and operation of all 
landfills currently owned or operated by the Borrower or any of its 
Subsidiaries have been obtained and remain in full force and effect and are 
not subject to any appeals or further proceedings or to any unsatisfied 
conditions that may allow material modification or revocation.  Neither the 
Borrower nor any of its Subsidiaries, nor, to the knowledge of the Borrower 
and its Subsidiaries, the holder of such permits is in violation of any such 
permits, except for any violation which would not have a material adverse 
effect on the business, operations or financial condition of the Borrower and 
its Subsidiaries as a whole.

     SECTION 6.19.  YEAR 2000 COMPLIANCE.  The Borrower and its Subsidiaries 
have reviewed the areas within their businesses and operations which could be 
adversely affected by, and have developed or are developing a program to 
address on a timely basis, the Year 2000 Compliance Issue.  Based upon such 
review, the Borrower reasonably believes that the Year 2000 Compliance Issue 
will not have any material adverse effect on the business, operations or 
financial condition of the Borrower and its Subsidiaries as a whole.

<PAGE>

     SECTION 7.  AFFIRMATIVE COVENANTS OF THE BORROWER.  The Borrower agrees 
that, so long as any Obligation or any Letter of Credit is outstanding or the 
Banks have any obligation to make Loans, or the Issuing Bank has any 
obligation to issue, extend or renew any Letters of Credit hereunder, or the 
Banks have any obligations to reimburse the Issuing Bank for drawings honored 
under any Letter of Credit, it shall, and shall cause its Subsidiaries to, 
comply with the following covenants:

     SECTION 7.1.  PUNCTUAL PAYMENT.  The Borrower will duly and punctually 
pay or cause to be paid the principal and interest on the Loans, all 
Reimbursement Obligations, fees and other amounts provided for in this 
Agreement and the other Loan Documents, all in accordance with the terms of 
this Agreement and such other Loan Documents.

     SECTION 7.2.  MAINTENANCE OF U.S. OFFICE.  The Borrower will maintain 
its chief executive offices at Houston, Texas, or at such other place in the 
United States of America as the Borrower shall designate upon 30 days' prior 
written notice to the Administrative Agent.

     SECTION 7.3.  RECORDS AND ACCOUNTS.  The Borrower will, and will cause 
each of its Subsidiaries to, keep true and accurate records and books of 
account in which full, true and correct entries will be made in accordance 
with GAAP and with the requirements of all regulatory authorities and 
maintain adequate accounts and reserves for all taxes (including income 
taxes), depreciation, depletion, obsolescence and amortization of its 
properties, all other contingencies, and all other proper reserves.

     Section 7.4.  FINANCIAL STATEMENTS, CERTIFICATES AND INFORMATION.  The 
Borrower will deliver to the Banks:

          (a)  as soon as practicable, but, in any event not later than 92 days
     after the end of each fiscal year of the Borrower, the consolidated balance
     sheet of the Borrower and its Subsidiaries as at the end of such year,
     consolidated statements of cash flows, and the related consolidated
     statements of operations, each setting forth in comparative form the
     figures for the previous fiscal year, all such consolidated financial
     statements to be in reasonable detail, prepared, in accordance with GAAP
     and, with respect to the consolidated financial statements, certified by
     PricewaterhouseCoopers LLP or Arthur Anderson LLP or by other independent
     auditors selected by the Borrower and reasonably satisfactory to the Banks
     (the "Accountants").  In addition, simultaneously therewith, the Borrower
     shall provide the Banks with a written statement from such Accountants to
     the effect that they have read a copy of this Agreement, and that, in
     making the examination necessary to said certification, they have obtained
     no knowledge of any Default or Event of Default, or, if such Accountants
     shall have obtained knowledge of any then existing Default or Event of
     Default they shall disclose in such statement any such Default or Event of
     Default;

          (b)  as soon as practicable, but in any event not later than 47 days
     after the end of each of the first three fiscal quarters of each fiscal
     year of the Borrower, copies of the consolidated balance sheet and
     statement of operations of the Borrower and its Subsidiaries as at the end
     of such quarter, subject to year-end adjustments, and the related

<PAGE>

     consolidated statement of cash flows, all in reasonable detail and prepared
     in accordance with GAAP (to the extent GAAP is applicable to interim
     unaudited financial statements) with a certification by the principal
     financial or accounting officer of the Borrower (the "CFO or the CAO") that
     the consolidated financial statements are prepared in accordance with GAAP
     (to the extent GAAP is applicable to interim unaudited financial
     statements) and fairly present the consolidated financial condition of the
     Borrower and its Subsidiaries on a consolidated basis as at the close of
     business on the date thereof and the results of operations for the period
     then ended, it being understood that no such statement need be accompanied
     by complete footnotes;

          (c)  simultaneously with the delivery of the financial statements
     referred to in (a) and (b) above, a certificate in the form of EXHIBIT F
     hereto (the "Compliance Certificate") signed by the CFO or the CAO or the
     Borrower's corporate treasurer, stating that the Borrower and its
     Subsidiaries are in compliance with the covenants contained in Sections 7,
     8 and 9 hereof as of the end of the applicable period and setting forth in
     reasonable detail computations evidencing such compliance with respect to
     the covenants contained in Sections 8.1(d), 8.3, 8.4, 8.5, and 9 hereof and
     that no Default or Event of Default exists, PROVIDED that if the Borrower
     shall at the time of issuance of such Compliance Certificate or at any
     other time obtain knowledge of any Default or Event of Default, the
     Borrower shall include in such certificate or otherwise deliver forthwith
     to the Banks a certificate specifying the nature and period of existence
     thereof and what action the Borrower proposes to take with respect thereto;

          (d)  contemporaneously with, or promptly following, the filing or
     mailing thereof, copies of all material of a financial nature filed with
     the Securities and Exchange Commission or sent to the Borrower's and its
     Subsidiaries' stockholders generally; and

          (e)  from time to time such other financial data and other information
     as the Banks may reasonably request.

     The Borrower hereby authorizes each Bank to disclose any information 
obtained pursuant to this Agreement to all appropriate governmental 
regulatory authorities where required by law; PROVIDED, HOWEVER, this 
authorization shall not be deemed to be a waiver of any rights to object to 
the disclosure by the Banks of any such information which the Borrower has or 
may have under the federal Right to Financial Privacy Act of 1978, as in 
effect from time to time, except as to matters specifically permitted therein.

     SECTION 7.5.  CORPORATE EXISTENCE AND CONDUCT OF BUSINESS.  The Borrower 
will, and will cause each Subsidiary, to do or cause to be done all things 
necessary to preserve and keep in full force and effect its corporate 
existence, corporate rights and franchises; and effect and maintain its 
foreign qualifications (except where the failure of the Borrower or any 
Subsidiary to remain so qualified would not materially adversely impair the 
financial condition, business or assets of the Borrower and its Subsidiaries 
on a consolidated basis), licensing, domestication or authorization except as 
terminated by its Board of Directors in the exercise of its reasonable 
judgment; PROVIDED that such termination would not have a material adverse 
effect on the financial 

<PAGE>

condition, business or assets of the Borrower and its Subsidiaries on a 
consolidated basis.  The Borrower will not, and will cause its Subsidiaries 
not to, become obligated under any contract or binding arrangement which, at 
the time it was entered into, would materially adversely impair the financial 
condition, business or assets of the Borrower and its Subsidiaries, on a 
consolidated basis.  The Borrower will, and will cause each Subsidiary to, 
continue to engage primarily in the businesses now conducted by it and in 
related businesses.

     SECTION 7.6.  MAINTENANCE OF PROPERTIES.  The Borrower will, and will 
cause its Subsidiaries to, cause all material properties used or useful in 
the conduct of their businesses to be maintained and kept in good condition, 
repair and working order (ordinary wear and tear excepted) and supplied with 
all necessary equipment and cause to be made all necessary repairs, renewals, 
replacements, betterments and improvements thereof, all as in the judgment of 
the Borrower and its Subsidiaries may be necessary so that the businesses 
carried on in connection therewith may be properly and advantageously 
conducted at all times; PROVIDED, HOWEVER, that nothing in this section shall 
prevent the Borrower or any of its Subsidiaries from discontinuing the 
operation and maintenance of any of its properties if such discontinuance is, 
in the judgment of the Borrower or such Subsidiary, desirable in the conduct 
of its or their business and which does not in the aggregate materially 
adversely affect the financial condition, business or assets of the Borrower 
and its Subsidiaries on a consolidated basis.

     SECTION 7.7.  INSURANCE.  The Borrower will, and will cause its 
Subsidiaries to, maintain with financially sound and reputable insurance 
companies, funds or underwriters, insurance of the kinds, covering the risks 
(other than risks arising out of or in any way connected with personal 
liability of any officers and directors thereof) and in the relative 
proportionate amounts usually carried by reasonable and prudent companies 
conducting businesses similar to that of the Borrower and its Subsidiaries, 
in amounts substantially similar to the existing coverage policies maintained 
by the Borrower and its Subsidiaries, copies of which have been provided to 
the Administrative Agent.  In addition, the Borrower will furnish from time 
to time, upon any Bank's request, a summary of the insurance coverage of the 
Borrower and its Subsidiaries, which summary shall be in form and substance 
satisfactory to the Banks and, if requested by any of the Banks, will furnish 
to the Administrative Agent and such Bank copies of the applicable policies.

     SECTION 7.8.  TAXES.  The Borrower will, and will cause its Subsidiaries 
to, duly pay and discharge, or cause to be paid and discharged, before the 
same shall become overdue, all taxes, assessments and other governmental 
charges (other than taxes, assessments and other governmental charges imposed 
by jurisdictions other than the United States, Canada or any political 
subdivision thereof, which in the aggregate are not material to the business, 
financial conditions, or assets of the Borrower and its Subsidiaries on a 
consolidated basis) imposed upon it and its real properties, sales and 
activities, or any part thereof, or upon the income or profits therefrom, as 
well as all claims for labor, materials, or supplies, which if unpaid might 
by law become a lien or charge upon any of its property; PROVIDED, HOWEVER, 
that any such tax, assessment, charge, levy or claim need not be paid if the 
validity or amount thereof shall currently be contested in good faith by 
appropriate proceedings and if the Borrower or such Subsidiary shall have set 
aside on its books adequate reserves with respect thereto as required by 
GAAP; and PROVIDED, FURTHER, that the Borrower or such Subsidiary will pay 
all such taxes, 

<PAGE>

assessments, charges, levies or claims forthwith upon the commencement of 
proceedings to foreclose any lien which may have attached as security 
therefor.

     SECTION 7.9.  INSPECTION OF PROPERTIES, BOOKS AND CONTRACTS.  The 
Borrower will, and will cause its Subsidiaries to, permit the Administrative 
Agent or any Bank or any of their designated representatives, upon reasonable 
notice, to visit and inspect any of the properties of the Borrower and its 
Subsidiaries, to examine the books of account of the Borrower and its 
Subsidiaries, or contracts (and to make copies thereof and extracts 
therefrom), and to discuss the affairs, finances and accounts of the Borrower 
and its Subsidiaries with, and to be advised as to the same by, their 
officers, all at such times and intervals as may be reasonably requested.

     SECTION 7.10.  COMPLIANCE WITH LAWS, CONTRACTS, LICENSES AND PERMITS; 
MAINTENANCE OF MATERIAL LICENSES AND PERMITS.  The Borrower will, and will 
cause each Subsidiary to, (i) comply with the provisions of its charter 
documents and by-laws; (ii) comply in all material respects with all 
agreements and instruments by which it or any of its properties may be bound; 
(iii) comply with all applicable laws and regulations (including 
Environmental Laws), decrees, orders, judgments, licenses and permits, 
including, without limitation, all environmental permits ("Applicable 
Requirements"), except where noncompliance with such Applicable Requirements 
would not reasonably be expected to have a material adverse effect in the 
aggregate on the consolidated financial condition, properties or businesses 
of the Borrower and its Subsidiaries; and (iv) maintain all material 
operating permits for all landfills now owned or hereafter acquired; and (v) 
dispose of hazardous waste only at licensed disposal facilities operating, to 
the best of the Borrower's or such Subsidiary's knowledge after reasonable 
inquiry, in compliance with Environmental Laws.  If at any time any 
authorization, consent, approval, permit or license from any officer, agency 
or instrumentality of any government shall become necessary or required in 
order that the Borrower or any Subsidiary may fulfill any of its obligations 
hereunder or under any other Loan Document, the Borrower will immediately 
take or cause to be taken all reasonable steps within the power of the 
Borrower or such Subsidiary to obtain such authorization, consent, approval, 
permit or license and furnish the Banks with evidence thereof.

     SECTION 7.11.  ENVIRONMENTAL INDEMNIFICATION.  The Borrower covenants 
and agrees that it will indemnify and hold the Banks, the Issuing Banks and 
the Administrative Agent and their respective affiliates, and each of the 
representatives, agents and officers of each of the foregoing, harmless from 
and against any and all claims, expense, damage, loss or liability incurred 
by the Banks, the Issuing Banks or the Administrative Agent (including all 
costs of legal representation incurred by the Banks, the Issuing Banks or the 
Administrative Agent) relating to (a) any Release or threatened Release of 
Hazardous Substances on the Real Property; (b) any violation of any 
Environmental Laws or Applicable Requirements with respect to conditions at 
the Real Property or other assets of the Borrower or its Subsidiaries, or the 
operations conducted thereon; or (c) the investigation or remediation of 
offsite locations at which the Borrower, any of its Subsidiaries, or their 
predecessors are alleged to have directly or indirectly Disposed of Hazardous 
Substances.  It is expressly acknowledged by the Borrower that this covenant 
of indemnification shall survive the payment of the Loans and Reimbursement 
Obligations and satisfaction of all other Obligations hereunder and shall 
inure to the benefit of the Banks, the Issuing Banks, the Administrative 
Agent and their affiliates, successors and assigns.

<PAGE>

     SECTION 7.12.  FURTHER ASSURANCES.  The Borrower and the Guarantors will 
cooperate with the Administrative Agent and execute such further instruments 
and documents as the Administrative Agent shall reasonably request to carry 
out to the Banks' satisfaction the transactions contemplated by this 
Agreement.

     SECTION 7.13.  NOTICE OF POTENTIAL CLAIMS OR LITIGATION.  The Borrower 
shall deliver to the Banks, within 30 days of receipt thereof, written notice 
of the initiation of any action, claim, complaint, or any other notice of 
dispute or potential litigation against the Borrower or any of its 
Subsidiaries wherein the potential liability is in excess of $25,000,000 or 
which questions the validity or enforceability of any Loan Document together 
with a copy of each such notice received by the Borrower or any of its 
Subsidiaries.

     SECTION 7.14.  NOTICE OF CERTAIN EVENTS CONCERNING INSURANCE AND
ENVIRONMENTAL CLAIMS.      

          (a)  The Borrower will provide the Banks with written notice as to 
     any material cancellation or material adverse change in any insurance 
     of the Borrower or any of its Subsidiaries within ten (10) Business 
     Days after the Borrower's or any of its Subsidiary's receipt of any 
     notice (whether formal or informal) of such material cancellation or 
     material change by any of its insurers.
     
           (b)  The Borrower will promptly, and in any event within ten (10) 
     Business Days of the Borrower's obtaining knowledge thereof, notify the 
     Banks in writing of any of the following events:

               (i)  upon the Borrower's or any Subsidiary's obtaining knowledge 
          of any violation of any Environmental Law regarding the Real Property 
          or the Borrower's or any Subsidiary's operations which violation 
          could have a material adverse effect on the business, financial 
          condition, or assets of the Borrower and its Subsidiaries on a 
          consolidated basis;
          
               (ii)  upon the Borrower's or any Subsidiary's obtaining knowledge
          of any potential or known Release, or threat of Release, of any 
          Hazardous Substance at, from, or into the Real Property which could 
          materially affect the business, financial condition, or assets of the 
          Borrower and its Subsidiaries on a consolidated basis;
          
               (iii)  upon the Borrower's or any Subsidiary's receipt of any 
          notice of any material violation of any Environmental Law or of any 
          Release or threatened Release of Hazardous Substances, including a 
          notice or claim of liability or potential responsibility from any 
          third party (including any federal, state, provincial, territorial or
          local governmental officials) and including notice of any formal 
          inquiry, proceeding, demand, investigation or other action with 
          regard to (A) the Borrower's, any Subsidiary's or any Person's 
          operation of the Real Property, (B) contamination on, from, or into 
          the Real Property, or (C) investigation or remediation of offsite 
          locations at which the Borrower, any Subsidiary, or its predecessors 
          are alleged to have directly or indirectly Disposed 

<PAGE>

          of Hazardous Substances, and with respect to which the liability 
          associated therewith could be reasonably expected to exceed 
          $25,000,000; or
          
               (iv) upon the Borrower's or any Subsidiary's obtaining knowledge
          that any expense or loss which individually or in the aggregate 
          exceeds $25,000,000 has been incurred by such governmental authority 
          in connection with the assessment, containment, removal or 
          remediation of any Hazardous Substances with respect to which the 
          Borrower or any Subsidiary may be liable or for which a lien may be 
          imposed on the Real Property.

     SECTION 7.15.  NOTICE OF DEFAULT.  The Borrower will promptly notify the 
Banks in writing of the occurrence of any Default or Event of Default.  If 
any Person shall give any notice or take any other action in respect of a 
claimed default (whether or not constituting an Event of Default) under this 
Agreement or any other note, evidence of indebtedness, indenture or other 
obligation evidencing indebtedness in excess of $25,000,000 as to which the 
Borrower or any of its Subsidiaries is a party or obligor, whether as 
principal or surety, the Borrower shall forthwith upon obtaining actual 
knowledge thereof give written notice thereof to the Banks, describing the 
notice of action and the nature of the claimed default.

     SECTION 7.16.  USE OF PROCEEDS.  The proceeds of the Loans shall be used 
for general corporate purposes and in connection with the WMI Merger and 
refinancing the WMI Credit Agreement and other existing debt and letters of 
credit of Old WMI and the Borrower.  No proceeds of the Loans shall be used 
in any way that will violate Regulations G, T, U or X of the Board of 
Governors of the Federal Reserve System.  No portion of the proceeds of any 
Loan is to be used, and no portion of any Letter of Credit is to be obtained, 
for the purpose of (a) knowingly purchasing, or providing credit support for 
the purchase of, Ineligible Securities from a Section 20 Subsidiary during 
any period in which such Section 20 Subsidiary makes a market in such 
Ineligible Securities, (b) knowingly purchasing, or providing credit support 
for the purchase of, during the underwriting or placement period, any 
Ineligible Securities being underwritten or privately placed by a Section 20 
Subsidiary, or (c) making, or providing credit support for the making of, 
payments of principal or interest on Ineligible Securities underwritten or 
privately placed by a Section 20 Subsidiary and issued by or for the benefit 
of the Borrower or any Subsidiary or other affiliate of the Borrower.

     SECTION 7.17.  CERTAIN TRANSACTIONS.  Except as disclosed in the 
Disclosure Documents, and except for arm's length transactions pursuant to 
which the Borrower or any Subsidiary makes payments in the ordinary course of 
business upon terms no less favorable than the Borrower or such Subsidiary 
could obtain from third parties, none of the officers, directors, or 
employees of the Borrower or any Subsidiary are presently or shall be a party 
to any transaction with the Borrower or any Subsidiary (other than for 
services as employees, officers and directors), including any contract, 
agreement or other arrangement providing for the furnishing of services to or 
by, providing for rental of real or personal property to or from, or 
otherwise requiring payments to or from any officer, director or such 
employee or, to the knowledge of the Borrower or any Subsidiary, any 
corporation, partnership, trust or other entity in which any officer, 

<PAGE>

director, or any such employee has a substantial interest or is an officer, 
director, trustee or partner.

     SECTION 8.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER.  The Borrower 
agrees that, so long as any Obligation or Letter of Credit is outstanding or 
the Banks have any obligation to make Loans or any Issuing Bank has any 
obligation to issue, extend or renew any Letters of Credit hereunder, or the 
Banks have any obligation to reimburse any Issuing Bank for drawings honored 
under any Letter of Credit, it shall, and shall cause its Subsidiaries to, 
comply with the following covenants:

     SECTION 8.1.  RESTRICTIONS ON INDEBTEDNESS.  Neither the Borrower nor 
any of its Subsidiaries shall become or be a guarantor or surety of, or 
otherwise create, incur, assume, or be or remain liable, contingently or 
otherwise, with respect to any Indebtedness, or become or be responsible in 
any manner (whether by agreement to purchase any obligations, stock, assets, 
goods or services, or to supply or advance any funds, assets, goods or 
services or otherwise) with respect to any Indebtedness of any other Person, 
or incur any Indebtedness other than:

          (a)  Indebtedness arising under this Agreement or the other Loan
     Documents;

          (b)  (i) Indebtedness incurred by the Borrower or any Subsidiary with
     respect to any suretyship or performance bond incurred in the ordinary
     course of its business and undrawn landfill closure bonds; and

               (ii) Guarantees of the Subsidiaries' obligations to governmental
     authorities in lieu of the posting of any landfill closure bonds;

          (c)  Unsecured Indebtedness of the Borrower (and any guarantee thereof
     by Old WMI), including commercial paper, which is pari passu or
     subordinated to the Obligations; PROVIDED that there does not exist a
     Default or Event of Default at the time of the incurrence of such
     Indebtedness and no Default or Event of Default would be created by the
     incurrence of such Indebtedness;

          (d)  (i)  Indebtedness of the Borrower's Subsidiaries (other than of
     Old WMI and the Sanifill Convertible Subordinated Debt and United
     Convertible Subordinated Debt), (ii) secured Indebtedness of the Borrower,
     (iii) Indebtedness with respect to drawn landfill closure bonds of the
     Borrower's Subsidiaries (other than of Old WMI), and (iv) Indebtedness with
     respect to Permitted Receivables Transactions (other than of Old WMI);
     PROVIDED that the aggregate amount of all such Indebtedness in this Section
     8.1(d) shall not exceed 15% of Consolidated Tangible Assets at any time; 

          (e)  Indebtedness of Old WMI listed in SCHEDULE 8.1(E) on the terms
     and conditions existing on the Effective Date, PROVIDED that any extension,
     renewal or refinancing of such Indebtedness is prohibited unless the amount
     of such extended, renewed or refinanced Indebtedness by Old WMI is deducted
     from Indebtedness allowed under Section 8.1(d) above;

<PAGE>

          (f)  The Sanifill Convertible Subordinated Debt and United Convertible
     Subordinated Debt; and 

          (g)  Until July 31, 1998 only, with respect to the WMF Agreement.

     SECTION 8.2.  RESTRICTIONS ON LIENS.  The Borrower will not, and will 
cause its Subsidiaries not to, create or incur or suffer to be created or 
incurred or to exist any lien, encumbrance, mortgage, pledge, charge, 
restriction or other security interest of any kind upon any property or 
assets of any character, whether now owned or hereafter acquired, or upon the 
income or profits therefrom; or transfer any of such property or assets or 
the income or profits therefrom for the purpose of subjecting the same to the 
payment of Indebtedness or performance of any other obligation in priority to 
payment of its general creditors; or acquire, or agree or have an option to 
acquire, any property or assets upon conditional sale or other title 
retention or purchase money security agreement, device or arrangement; or 
suffer to exist for a period of more than 30 days after the same shall have 
been incurred any Indebtedness or claim or demand against it which if unpaid 
might by law or upon bankruptcy or insolvency, or otherwise, be given any 
priority whatsoever over its general creditors; or sell, assign, pledge or 
otherwise transfer any accounts, contract rights, general intangibles or 
chattel paper, with or without recourse, except as follows (the "Permitted 
Liens"):

          (a)  Liens existing on the Effective Date and listed on SCHEDULE
     8.2(A) hereto;

          (b)  Liens securing Indebtedness permitted by Section 8.1(b)(i)
     hereof; provided that the assets subject to such liens and security
     interests shall be limited to those contracts to which such guaranty,
     suretyship or indemnification obligations relate and the rights to payment
     thereunder;

          (c)  Liens securing Indebtedness permitted under Sections 8.1(d) and
     (e) (provided that Liens created pursuant to a Permitted Receivables
     Transaction are only on the receivables so transferred and secure only the
     obligations with respect thereto), and Section 8.1(g), provided such liens
     are discharged by August 31, 1998;

          (d)  Liens securing Indebtedness arising under the United Senior
     Secured Notes;

          (e)  Liens to secure taxes, assessments and other government charges
     in respect of obligations not overdue;

          (f)  Deposits or pledges made in connection with, or to secure payment
     of, workmen's compensation, unemployment insurance, old age pensions or
     other social security obligations;

          (g)  Liens in respect of judgments or awards which have been in force
     for less than the applicable period for taking an appeal so long as
     execution is not levied thereunder or in respect of which the Borrower (or
     any Subsidiary) shall at the time in good faith be prosecuting an appeal or
     proceedings for review and in respect of which a 

<PAGE>

     stay of execution shall have been obtained pending such appeal or review 
     and in respect of which the Borrower maintains adequate reserves;

          (h)  Liens of carriers, warehousemen, mechanics and materialmen, and
     other like liens, in existence less than 120 days from the date of creation
     thereof in respect of obligations not overdue, PROVIDED THAT such liens may
     continue to exist for a period of more than 120 days if the validity or
     amount thereof shall currently be contested by the Borrower (or any
     Subsidiary) in good faith by appropriate proceedings and if the Borrower
     shall have set aside on its books adequate reserves with respect thereto as
     required by GAAP and PROVIDED FURTHER THAT the Borrower (or any Subsidiary)
     will pay any such claim forthwith upon commencement of proceedings to
     foreclose any such lien; and

          (i)  Encumbrances consisting of easements, rights of way, zoning
     restrictions, restrictions on the use of real property and defects and
     irregularities in the title thereto, landlord's or lessor's liens under
     leases to which the Borrower or any Subsidiary is a party, and other minor
     liens or encumbrances none of which in the opinion of the Borrower
     interferes materially with the use of the property affected in the ordinary
     conduct of the business of the Borrower or any of its Subsidiaries, which
     defects do not individually or in the aggregate have a material adverse
     effect on the business of the Borrower or any Subsidiary individually or of
     the Borrower and its Subsidiaries on a consolidated basis.

          The Borrower and the Guarantors covenant and agree that if any of them
     or any of their Subsidiaries shall create or assume any lien upon any of
     their respective properties or assets, whether now owned or hereafter
     acquired, other than Permitted Liens (unless prior written consent shall
     have been obtained from the Banks), the Borrower and the Guarantors will
     make or cause to be made effective provision whereby the Obligations and
     their respective Guaranteed Obligations will be secured by such lien
     equally and ratably with any and all other Indebtedness thereby secured so
     long as such other Indebtedness shall be so secured; PROVIDED, that the
     covenants of the Borrower and the Guarantors contained in this sentence
     shall only be in effect for so long as the Borrower or any Guarantor shall
     be similarly obligated under any other Indebtedness; PROVIDED, FURTHER,
     that an Event of Default shall occur for so long as such other Indebtedness
     becomes secured notwithstanding any actions taken by the Borrower or any
     Guarantor to ratably secure the Obligations and the Guaranteed Obligations
     hereunder.

     SECTION 8.3.  RESTRICTIONS ON INVESTMENTS.  Except to the extent 
provided in Section 8.4, neither the Borrower nor any Subsidiary may make or 
permit to exist or to remain outstanding any Investment, unless both before 
and after giving effect thereto (i) the Borrower and its Subsidiaries are in 
compliance with the covenants set forth in Sections 7, 8 and 9 hereof; (ii) 
there does not exist a Default or Event of Default and no Default or Event of 
Default would be created by the making of such Investment; and (iii) the 
aggregate amount of all Investments (excluding Investments in (A) direct 
obligations of the United States of America or any agency thereof having 
maturities of less than one (1) year, (B) certificates of deposit having 
maturities of less than one (1) year, issued by commercial banks in the 
United States or Canada having capital and 

<PAGE>

surplus of not less than $100,000,000, (C) wholly owned Subsidiaries (other 
than WMInternational), and (D) existing WMInternational Investments listed on 
Schedule 8.3) does not exceed 10% of Consolidated Tangible Assets; PROVIDED, 
that the ability of the Borrower and its Subsidiaries to incur any 
Indebtedness in connection with any Investment permitted by this Section 8.3 
shall be governed by Section 8.1.

     SECTION 8.4.  MERGERS, CONSOLIDATIONS, SALES.  

          (a)  Neither the Borrower nor any Subsidiary shall be a party to any
     merger, consolidation or exchange of stock unless the Borrower shall be the
     surviving entity with respect to any such transaction to which the Borrower
     is a party and a Guarantor shall be the survivor of any merger with any
     Subsidiary which is not Guarantor or a Subsidiary shall be the surviving
     entity (and continue to be a Subsidiary) with respect to any such
     transactions to which one or more Subsidiaries is a party (and the
     conditions set forth below are satisfied), or purchase or otherwise acquire
     all or substantially all of the assets or stock of any class of, or any
     partnership, membership or joint venture or other interest in, any other
     Person except as otherwise provided in Section 8.3 or this Section 8.4. 
     Notwithstanding the foregoing, the Borrower and its Subsidiaries may
     purchase or otherwise acquire all or substantially all of the assets or
     stock of any class of, or joint venture or other interest in, any Person if
     the following conditions have been met:  (i) the proposed transaction will
     not otherwise create a Default or an Event of Default hereunder; (ii) the
     business to be acquired predominantly involves (A) the collection,
     transfer, hauling, disposal or recycling of solid waste (excluding
     hazardous waste as that term is defined in RCRA) or thermal soil
     remediation, or (B) other lines of businesses currently engaged in by Old
     WMI, including (1) on-site portable sanitation services, (2) industrial
     cleaning services, (3) chemical waste treatment, storage, disposal and
     related services, (4) on-site integrated hazardous waste management
     services, including hazardous waste identification, packaging, removal, and
     recycling services, (5) radioactive waste management services, (6)
     development and operation of waste-to-energy facilities and related
     services, (7) the treatment and management of biosolids, (8) design and
     installation of air pollution control systems and equipment, or (9)
     environmental and infrastructure consulting and related services, provided
     that revenues from operations with respect to items (3), (4) and (5) shall
     not exceed ten percent (10%) of consolidated revenues without the consent
     of the Majority Banks; (iii) the business to be acquired operates
     predominantly (A) in North America or (B) outside North America, PROVIDED,
     that the aggregate amount of such acquisitions under this clause (B) does
     not exceed fifteen percent (15%) of Consolidated Tangible Assets; and (iv)
     the board of directors and (if required by applicable law) the
     shareholders, or the equivalent thereof, of the business to be acquired has
     approved such acquisition.  Notwithstanding anything herein to the
     contrary, the ability of the Borrower and its Subsidiaries to incur any
     Indebtedness in connection with any transaction permitted pursuant to this
     Section 8.4 shall be governed by Section 8.1.  Notwithstanding the
     foregoing, the Borrower may effect the WMI Merger provided that such
     transaction will not otherwise create a Default or Event of Default
     hereunder.

<PAGE>

          (b)  Neither the Borrower nor any Subsidiary shall sell, transfer,
     convey or lease any assets or group of assets including the sale or
     transfer of any property owned by the Borrower or any Subsidiary in order
     then or thereafter to lease such property or lease other property which the
     Borrower or such Subsidiary intends to use for substantially the same
     purpose as the property being sold or transferred (except (1) transfers of
     real or personal property among Subsidiaries of the Borrower which are
     wholly owned by the Borrower, (2) Regulatory Dispositions, and (3) so long
     as no Default or Event of Default has occurred and is continuing, or would
     result therefrom, sales of assets in the ordinary course of business in any
     calendar year with an aggregate value not greater than five percent (5%) of
     Consolidated Total Assets, as set forth in the most recent financial
     statements delivered to the Banks pursuant to Section 7.4 hereof) or sell
     or assign, with or without recourse, any receivables (except accounts
     receivable more than sixty (60) days past due sold or assigned in the
     ordinary course of collecting past due accounts, or pursuant to a Permitted
     Receivables Transaction).

     SECTION 8.5.  RESTRICTED DISTRIBUTIONS AND REDEMPTIONS.  Neither the 
Borrower nor any of its Subsidiaries will (a) declare or pay any 
Distributions, or (b) redeem, convert, retire or otherwise acquire shares of 
any class of its capital stock (other than in connection with a merger 
permitted by Section 8.4 hereof or conversion into another form of equity of 
any preferred shares of the Borrower existing as of the Effective Date 
pursuant to the terms thereof); PROVIDED that the Borrower and its 
Subsidiaries may pay cash dividends and redeem stock in an aggregate amount 
not to exceed (x) $100,000,000 PLUS (y) on a cumulative basis, 50% of the sum 
of, if positive, (i) Consolidated Net Income after June 30, 1998 plus (ii) 
WMI Merger Costs and Special Charges. Notwithstanding the above, any 
Subsidiary may make Distributions to the Borrower and the Borrower agrees 
that neither the Borrower nor any Material Subsidiary will enter into any 
agreement restricting Distributions from such Material Subsidiary to the 
Borrower.

     SECTION 8.6.  EMPLOYEE BENEFIT PLANS.  None of the Borrower, any of its 
Subsidiaries, or any ERISA Affiliate will:

          (a)  engage in any "prohibited transaction" within the meaning of 9406
     of ERISA or Section 4975 of the Code which could result in a material
     liability for the Borrower on a consolidated basis; or

          (b)  permit any Guaranteed Pension Plan to incur an "accumulated
     funding deficiency", as such term is defined in Section 302 of ERISA,
     whether or not such deficiency is or may be waived; or

          (c)  fail to contribute to any Guaranteed Pension Plan to an extent
     which, or terminate any Guaranteed Pension Plan in a manner which, could
     result in the imposition of a lien or encumbrance on the assets of the
     Borrower or any guarantor pursuant to Section 302(f) or Section 4068 of
     ERISA; or

          (d)  permit or take any action which would result in the aggregate
     benefit liabilities (with the meaning of Section 4001 of ERISA) of all
     Guaranteed Pension Plans exceeding the value of the aggregate assets of
     such Plans, disregarding for this purpose 

<PAGE>

     the benefit liabilities and assets of any such Plan with assets in 
     excess of benefit liabilities; or

          (e)  take any action referred to in paragraph (a), (b), (c) or (d)
     above that would violate any provisions of Applicable Canadian Pension
     Legislation.

     The Borrower and its Subsidiaries will (i) promptly upon the request of 
any Bank or the Administrative Agent, furnish to the Banks a copy of the most 
recent actuarial statement required to be submitted under Section 103(d) of 
ERISA and Annual Report, Form 5500, with all required attachments, in respect 
of each Guaranteed Pension Plan and (ii) promptly upon receipt or dispatch, 
furnish to the Banks any notice, report or demand sent or received in respect 
of a Guaranteed Pension Plan under Sections 302, 4041, 4042, 4043, 4063, 
4065, 4066 and 4068 of ERISA, or in respect of a Multiemployer Plan, under 
Sections 4041A, 4202, 4219, 4242 or 4245 of ERISA.

     SECTION 9.  FINANCIAL COVENANTS OF THE BORROWER.  The Borrower agrees 
that, so long as any Obligation or Letter of Credit is outstanding or the 
Banks have any obligation to make Loans, or any Issuing Bank has any 
obligation to issue, extend or renew any Letter of Credit hereunder, or the 
Banks have any obligation to reimburse any Issuing Bank for drawings honored 
under any Letter of Credit, it shall, and shall cause its Subsidiaries to, 
comply with the following covenants:

     SECTION 9.1.  INTEREST COVERAGE RATIO.  As of the end of any fiscal 
quarter of the Borrower ending during any period described in the table set 
forth below, the Borrower will not permit the ratio of (a) EBIT to (b) 
Consolidated Total Interest Expense for such period to be less than the ratio 
set forth opposite such period in such table:

                  Period                               Ratio
                  ------                               -----
     Effective Date - March 31, 1999                   2.50:1
     April 1, 1999 and thereafter                      3.00:1

     The Interest Coverage Ratio shall be calculated on a cumulative quarterly
basis for the fiscal quarters ending September 30, 1998, through March 31, 1999,
and thereafter for the four fiscal quarters then ending.

     SECTION 9.2.  TOTAL DEBT TO EBITDA.  As of the end of any fiscal quarter 
of the Borrower commencing with the fiscal quarter ending September 30, 1998, 
the ratio of Total Debt to EBITDA shall not exceed 3.00:1 at any time.  For 
the purposes of this Section 9.2, EBITDA shall be calculated on an annualized 
basis for the fiscal quarters ending September 30, 1998 through the fiscal 
quarter ending March 31, 1999, and thereafter, for the four fiscal quarters 
then ending.

     SECTION 10.  CONDITIONS PRECEDENT.      

     SECTION 10.1.  CONDITIONS TO EFFECTIVENESS.  The effectiveness of this 
Agreement and the obligations of the Banks to make any Loans and of any 
Issuing Bank to issue Letters of Credit 

<PAGE>

and of the Banks to participate in Letters of Credit and otherwise be bound 
by the terms of this Agreement shall be subject to the satisfaction of each 
of the following conditions precedent:

     SECTION 10.1.1.  CORPORATE ACTION.  All corporate action necessary for 
the valid execution, delivery and performance by the Borrower and the 
Guarantors of the Loan Documents shall have been duly and effectively taken, 
and evidence thereof certified by authorized officers of the Borrower and the 
Guarantors and satisfactory to the Majority Banks shall have been provided to 
the Banks.

     SECTION 10.1.2.  LOAN DOCUMENTS, ETC.  Each of the Loan Documents and 
other documents listed on the closing agenda shall have been duly and 
properly authorized, executed and delivered by the respective parties thereto 
and shall be in full force and effect in a form satisfactory to the Majority 
Banks.

     SECTION 10.1.3.  CERTIFIED COPIES OF CHARTER DOCUMENTS.  The Banks shall 
have received from each of the Borrower and the Guarantors a copy, certified 
by a duly authorized officer of such Person to be true and complete on the 
Effective Date, of (a) its charter or other incorporation documents as in 
effect on such date of certification, and (b) its by-laws as in effect on 
such date.

     SECTION 10.1.4.  INCUMBENCY CERTIFICATE.  The Banks shall have received 
an incumbency certificate, dated as of the Effective Date, signed by duly 
authorized officers giving the name and bearing a specimen signature of each 
individual who shall be authorized: (a) to sign the Loan Documents on behalf 
of the Borrower and each Guarantor; (b) to make Syndicated Loan Requests and 
Letter of Credit Requests; (c) to make Competitive Bid Quote Requests; and 
(d) to give notices and to take other action on the Borrower's behalf under 
the Loan Documents.

     SECTION 10.1.5.  CERTIFICATES OF INSURANCE.  

     The Banks shall have received (i) a certificate of insurance from an 
independent insurance broker dated as of the Effective Date, or within 15 
days prior thereto, identifying insurers, types of insurance, insurance 
limits, and policy terms, and otherwise describing the insurance obtained in 
accordance with the provisions of the Loan Documents and (ii) copies of all 
policies evidencing such insurance (or certificates therefor signed by the 
insurer or an agent authorized to bind the insurer).

     SECTION 10.1.6.  OPINIONS OF COUNSEL.  The Banks shall have received 
favorable legal opinions from outside counsel to the Borrower and the 
Guarantors addressed to the Banks, dated the Effective Date, in form and 
substance satisfactory to the Administrative Agent.

     SECTION 10.1.7.  EXISTING DEBT.  The Administrative Agent shall have 
received a payoff letter, in form and substance satisfactory to the 
Administrative Agent, with respect to the accrued interest and fees under the 
Existing Credit Agreement, payoff letters with respect to Old WMI, and other 
debt of the Borrower, such payoff letter(s) indicating the amount of the loan 
obligations of the Borrower, its Subsidiaries, and the Guarantors to be 
discharged as of the Effective Date.

<PAGE>

     SECTION 10.1.8.  SATISFACTORY FINANCIAL CONDITION.  No material adverse 
change, in the judgment of the Majority Banks, shall have occurred in the 
financial condition, results of operations, business, properties or prospects 
of the Borrower and its Subsidiaries, or Old WMI and its Subsidiaries, taken 
as a whole, since the most recent financial statements and projections 
provided to the Banks.

     SECTION 10.1.9.  PAYMENT OF AMENDMENT FEES.  The Borrower shall have 
paid the agreed upon amendment fees to the Administrative Agent for the 
account of the Banks.

     SECTION 10.1.10.  WMI MERGER.  The WMI Merger shall be successfully 
completed on terms no less favorable to the Borrower than the terms set forth 
in the WMI Merger Agreement, and evidence thereof satisfactory to the 
Administrative Agent, including, without limitation, a legal opinion as to 
the completion of the WMI Merger, shall have been furnished to the 
Administrative Agent.  In addition, the definitive documentation relating to 
the WMI Merger shall be in form and substance reasonably satisfactory to the 
Agents, and the structure of the WMI Merger, including all tax, ERISA, 
accounting and other consequences thereof, shall be satisfactory to the 
Agents.

     SECTION 10.1.11.  LIEN SEARCH RESULTS.  The Administrative Agent shall 
have received the results of UCC lien searches satisfactory to the 
Administrative Agent with respect to Old WMI and its Subsidiaries indicating 
no liens or encumbrances other than Permitted Liens.

     SECTION 10.2.  NOTICE OF EFFECTIVE DATE.  Promptly upon receipt of the 
items set forth above, the Administrative Agent shall notify the Banks that 
all of the conditions of Section 10.1 have been satisfied and that the 
Majority Banks have approved this Agreement.  As soon as practical 
thereafter, the Administrative Agent shall distribute an original counterpart 
of the WMI Joinder and this Agreement to each Bank, together with copies of 
other items delivered in connection with the closing of this Agreement.

     SECTION 11.  CONDITIONS TO ALL LOANS.  The obligations of the Banks to 
make any Loan and the obligation of any Issuing Bank to issue, extend, or 
renew any Letter of Credit at the time of and subsequent to the Effective 
Date is subject to the following conditions precedent:

     SECTION 11.1.  REPRESENTATIONS TRUE.  Each of the representations and 
warranties of the Borrower and the Guarantors (as applicable) contained in 
this Agreement or in any document or instrument delivered pursuant to or in 
connection with this Agreement shall be true as of the date as of which they 
were made and shall also be true at and as of the time of the making of such 
Loan or the issuance, extension, or renewal of any Letter of Credit, as 
applicable, with the same effect as if made at and as of that time (except to 
the extent of changes resulting from transactions contemplated or permitted 
by this Agreement and changes occurring in the ordinary course of business 
which singly or in the aggregate are not materially adverse to the business, 
assets or financial condition of the Borrower and its Subsidiaries as a 
whole, and to the extent that such representations and warranties relate 
expressly and solely to an earlier date).

     SECTION 11.2.  PERFORMANCE; NO EVENT OF DEFAULT.  The Borrower shall 
have performed and complied with all terms and conditions herein required to 
be performed or complied with by 

<PAGE>

them prior to or at the time of the making of any Loan the issuance, 
extension or renewal of any Letter of Credit, and at the time of the making 
of any Loan or the issuance, renewal or extension of any Letter of Credit, 
there shall exist no Default or Event of Default or condition which would 
result in a Default or an Event of Default upon consummation of such Loan or 
issuance, extension, or renewal of any Letter of Credit, as applicable.  Each 
request for a Loan, or for issuance, extension or renewal of a Letter of 
Credit shall constitute certification by the Borrower that the conditions 
specified in Sections 11.1 and 11.2 will be duly satisfied on the date of 
such Loan or Letter of Credit issuance, extension or renewal.

     SECTION 11.3.  NO LEGAL IMPEDIMENT.  No change shall have occurred in 
any law or regulations thereunder or interpretations thereof which in the 
reasonable opinion of the Banks would make it illegal for the Banks to make 
Loans, for any Issuing Bank to issue, extend or renew, or the Banks to 
participate in, Letters of Credit hereunder.

     SECTION 11.4.  GOVERNMENTAL REGULATION.  The Banks shall have received 
from the Borrower and its Subsidiaries such statements in substance and form 
reasonably satisfactory to the Banks as they shall require for the purpose of 
compliance with any applicable regulations of the Comptroller of the Currency 
or the Board of Governors of the Federal Reserve System or the Office of the 
Superintendent of Financial Institutions.

     SECTION 11.5.  PROCEEDINGS AND DOCUMENTS.  All proceedings in connection 
with the transactions contemplated by this Agreement and all documents 
incident thereto shall have been delivered to the Banks as of the date of the 
making of any extension of credit in substance and in form satisfactory to 
the Banks, including without limitation a Syndicated Loan Request in the form 
attached hereto as EXHIBIT D or a Letter of Credit Request in the form of 
EXHIBIT E and the Banks shall have received all information and such 
counterpart originals or certified or other copies of such documents as the 
Banks may reasonably request.

     SECTION 12.  EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENT. 

     SECTION 12.1.  EVENTS OF DEFAULT AND ACCELERATION.  If any of the 
following events ("Events of Default" or, if the giving of notice or the 
lapse of time or both is required, then, prior to such notice and/or lapse of 
time, "Defaults") shall occur:

          (a)  if the Borrower shall fail to pay any principal of the Loans when
     the same shall become due and payable, whether at the stated date of
     maturity or any accelerated date of maturity or at any other date fixed for
     payment;

          (b)  if the Borrower shall fail to pay any interest or fees or other
     amounts owing hereunder (other than those specified in subsection (a)
     above) within five (5) Business Days after the same shall become due and
     payable whether at the Maturity Date or any accelerated date of maturity or
     at any other date fixed for payment;

          (c)  if the Borrower shall fail to comply with any of the covenants
     contained in Sections 7, 8 and 9 hereof;

<PAGE>

          (d)  if the Borrower shall fail to perform any term, covenant or
     agreement contained herein or in any of the other Loan Documents (other
     than those specified in subsections (a), (b), and (c) above) and such
     failure shall not be remedied within 30 days after written notice of such
     failure shall have been given to the Borrower by the Administrative Agent
     or any of the Banks;

          (e)  if any representation or warranty contained in this Agreement or
     in any document or instrument delivered pursuant to or in connection with
     this Agreement shall prove to have been false in any material respect upon
     the date when made or repeated;

          (f)  if the Borrower or any of its Subsidiaries shall fail to pay when
     due, or within any applicable period of grace, any Indebtedness in an
     aggregate amount greater than $50,000,000, or fail to observe or perform
     any material term, covenant or agreement contained in any one or more
     agreements by which it is bound, evidencing or securing any Indebtedness in
     an aggregate amount greater than $50,000,000 for such period of time as
     would, or would have permitted (assuming the giving of appropriate notice
     if required) the holder or holders thereof or of any obligations issued
     thereunder to accelerate the maturity thereof or terminate its commitment
     with respect thereto;

          (g)  if the Borrower, any Guarantor or any Material Subsidiary makes
     an assignment for the benefit of creditors, or admits in writing its
     inability to pay or generally fails to pay its debts as they mature or
     become due, or petitions or applies for the appointment of a trustee or
     other custodian, liquidator or receiver of the Borrower, the Guarantors or
     any Material Subsidiary, or of any substantial part of the assets of the
     Borrower, the Guarantors or any Material Subsidiary or commences any case
     or other proceeding relating to the Borrower, the Guarantors or any
     Material Subsidiary under any bankruptcy, reorganization, arrangement,
     insolvency, readjustment of debt, dissolution or liquidation or similar law
     of any jurisdiction, now or hereafter in effect, or takes any action to
     authorize or in furtherance of any of the foregoing, or if any such
     petition or application is filed or any such case or other proceeding is
     commenced against the Borrower, the Guarantors or any Material Subsidiary
     or the Borrower, any Guarantor or any Material Subsidiary indicates its
     approval thereof, consent thereto or acquiescence therein;

          (h)  if a decree or order is entered appointing any such trustee,
     custodian, liquidator or receiver or adjudicating the Borrower or any
     Guarantor or any Material Subsidiary bankrupt or insolvent, or approving a
     petition in any such case or other proceeding, or a decree or order for
     relief is entered in respect of the Borrower or any Guarantor or any
     Material Subsidiary in an involuntary case under federal bankruptcy laws of
     any jurisdiction as now or hereafter constituted, and such decree or order
     remains in effect for more than 30 days, whether or not consecutive;

          (i)  if there shall remain in force, undischarged, unsatisfied and
     unstayed, for more than thirty days, whether or not consecutive, any final
     judgment against the Borrower or any Subsidiary which, with other
     outstanding final judgments against the 

<PAGE>

     Borrower and its Subsidiaries exceeds in the aggregate $25,000,000 after 
     taking into account any undisputed insurance coverage;

          (j)  if, with respect to any Guaranteed Pension Plan (or any
     corresponding plan described in any Applicable Canadian Pension
     Legislation), an ERISA Reportable Event or similar event under Applicable
     Canadian Pension Legislation shall have occurred and the Banks shall have
     determined in their reasonable discretion that such event reasonably could
     be expected to result in liability of the Borrower or any Subsidiary to the
     PBGC or similar Canadian authorities or the Plan in an aggregate amount
     exceeding $25,000,000 and such event in the circumstances occurring
     reasonably could constitute grounds for the partial or complete termination
     of such Plan by the PBGC or similar Canadian authorities or for the
     appointment by the appropriate United States District Court or Canadian
     Court of a trustee to administer such Plan; or a trustee shall have been
     appointed by the appropriate United States District Court or Canadian Court
     to administer such Plan; or the PBGC or similar Canadian authorities shall
     have instituted proceedings to terminate such Plan;

          (k)  if any of the Loan Documents shall be cancelled, terminated,
     revoked or rescinded otherwise than in accordance with the terms thereof or
     with the express prior written agreement, consent or approval of the Banks,
     or any action at law, suit or in equity or other legal proceeding to
     cancel, revoke or rescind any of the Loan Documents shall be commenced by
     or on behalf of the Borrower, any Guarantor, or any of their respective
     stockholders, or any court or any other governmental or regulatory
     authority or agency of competent jurisdiction shall make a determination
     that, or issue a judgment, order, decree or ruling to the effect that, any
     one or more of the Loan Documents is illegal, invalid or unenforceable in
     accordance with the terms thereof; or

          (l)  if any person or group of persons (within the meaning of Section
     13 or 14 of the Securities Exchange Act of 1934, as amended) shall have
     acquired beneficial ownership (within the meaning of Rule 13d-3 promulgated
     by the Securities and Exchange Commission under said Act) of 25% or more of
     the outstanding shares of common voting stock of the Borrower; or during
     any period of twelve consecutive calendar months, individuals who were
     directors of the Borrower on the first day of such period shall cease to
     constitute a majority of the board of directors of the Borrower;

then, and in any such event, so long as the same may be continuing, the
Administrative Agent may, and upon the request of the Majority Banks shall, by
notice in writing to the Borrower, declare all amounts owing with respect to
this Agreement, the Notes and the other Loan Documents and all Reimbursement
Obligations to be, and they shall thereupon forthwith become, immediately due
and payable without presentment, demand, protest, notice of intent to
accelerate, notice of acceleration to the extent permitted by law or other
notice of any kind, all of which are hereby expressly waived by the Borrower;
PROVIDED that in the event of any Event of Default specified in Section 12.1(g)
or 12.1(h), all such amounts shall become immediately due and payable
automatically and without any requirement of notice from the Administrative
Agent or any Bank.  Upon demand by the Majority Banks after the occurrence of
any Event of Default, the 

<PAGE>

Borrower shall immediately provide to the Administrative Agent cash in an 
amount equal to the aggregate Maximum Drawing Amount to be held by the 
Administrative Agent as collateral security for the Reimbursement Obligations.

     SECTION 12.2.  TERMINATION OF COMMITMENTS.  If any Event of Default 
pursuant to Sections 12.1(g) or 12.1(h) hereof shall occur, any unused 
portion of the Total Commitment hereunder shall forthwith terminate and the 
Banks and the Issuing Banks shall be relieved of all obligations to make 
Loans or to issue, extend or renew Letters of Credit hereunder; or if any 
other Event of Default shall occur, the Majority Banks may by notice to the 
Borrower terminate the unused portion of the Total Commitment hereunder, and, 
upon such notice being given, such unused portion of the Total Commitment 
hereunder shall terminate immediately and the Banks and the Issuing Banks 
shall be relieved of all further obligations to make Loans or to issue, 
extend or renew Letters of Credit hereunder.  No termination of any portion 
of the Total Commitment hereunder shall relieve the Borrower of any of its 
existing Obligations to the Banks, the Issuing Banks or the Administrative 
Agent hereunder or elsewhere.

     SECTION 12.3.  REMEDIES.  In case any one or more of the Events of 
Default shall have occurred and be continuing, and whether or not the Banks 
shall have accelerated the maturity of the Loans and other Obligations 
pursuant to Section 12.1, each Bank, upon notice to the other Banks, if owed 
any amount with respect to the Loans or the Reimbursement Obligations, may 
proceed to protect and enforce its rights by suit in equity, action at law or 
other appropriate proceeding, whether for the specific performance of any 
covenant or agreement contained in this Agreement and the other Loan 
Documents or any instrument pursuant to which the Obligations to such Bank 
are evidenced, including, without limitation, as permitted by applicable law 
the obtaining of the EX PARTE appointment of a receiver, and, if such amount 
shall have become due, by declaration or otherwise, proceed to enforce the 
payment thereof or any legal or equitable right of such Bank, any recovery 
being subject to the terms of Section 29 hereof.  No remedy herein conferred 
upon any Bank or the Administrative Agent or the holder of any Note is 
intended to be exclusive of any other remedy and each and every remedy shall 
be cumulative and shall be in addition to every other remedy given hereunder 
or now or hereafter existing at law or in equity or by statute or any other 
provision of law.

     SECTION 13.  SETOFF.  Regardless of the adequacy of any collateral, 
during the continuance of an Event of Default, any deposits or other sums 
credited by or due from any Bank to the Borrower or any of them and any 
securities or other property of the Borrower or any of them in the possession 
of such Bank may be applied to or set off against the payment of Obligations 
and any and all other liabilities, direct, or indirect, absolute or 
contingent, due or to become due, now existing or hereafter arising, of the 
Borrower to the Banks or the Administrative Agent. Any amounts set off 
pursuant to this Section 13 shall be distributed ratably in accordance with 
Section 30 among all of the Banks by the Bank setting off such amounts.  If 
any Bank fails to share such setoff ratably, the Administrative Agent shall 
have the right to withhold such Bank's share of the Borrower's payments until 
each of the Banks shall have, in the aggregate, received a pro rata repayment.

     SECTION 14.  EXPENSES.  Whether or not the transactions contemplated 
herein shall be consummated, the Borrower hereby promises to reimburse the 
Administrative Agent for all 

<PAGE>

reasonable out-of-pocket fees and disbursements (including all reasonable 
attorneys' fees) incurred or expended in connection with the preparation, 
filing or recording, or interpretation of this Agreement, the other Loan 
Documents, or any amendment, modification, approval, consent or waiver hereof 
or thereof.  The Borrower further promises to reimburse the Administrative 
Agent and the Banks for all reasonable out-of-pocket fees and disbursements 
(including all reasonable legal fees and the allocable cost of in-house 
attorneys' fees) incurred or expended in connection with the enforcement of 
any Obligations or the satisfaction of any indebtedness of the Borrower 
hereunder or under any other Loan Document, or in connection with any 
litigation, proceeding or dispute hereunder in any way related to the credit 
hereunder.  The Borrower also promises to pay the Administrative Agent all 
reasonable out-of-pocket fees and disbursements, incurred or expended in 
connection with the Competitive Bid Loan procedure under Section 4 hereof.

     SECTION 15.  THE ADMINISTRATIVE AGENT.  

     SECTION 15.1.  APPOINTMENT, POWERS AND IMMUNITIES.  Each Bank hereby 
irrevocably appoints and authorizes MGT to act as Administrative Agent, 
PROVIDED, HOWEVER, the Administrative Agent is hereby authorized to serve 
only as administrative and documentation agent for the Banks and to exercise 
such powers as are reasonably incidental thereto and as are set forth in this 
Agreement and the other Loan Documents.  The Administrative Agent hereby 
acknowledges that it does not have the authority to negotiate any agreement 
which would bind the Banks or agree to any amendment, waiver or modification 
of any of the Loan Documents or bind the Banks except as set forth in this 
Agreement or the Loan Documents.  Except as provided in this Agreement, and 
in the other Loan Documents, the Administrative Agent shall take action or 
refrain from acting only upon instructions of the Banks.  It is agreed that 
the duties, rights, privileges and immunities of the Issuing Banks, in their 
capacity as issuers of Letters of Credit hereunder, shall be identical to the 
duties, rights, privileges and immunities of the Administrative Agent as 
provided in this Section 15.  The Administrative Agent shall not have any 
duties or responsibilities or any fiduciary relationship with any Bank except 
those expressly set forth in this Agreement and the other Loan Documents.  
Neither the Administrative Agent nor any of its affiliates shall be 
responsible to the Banks for any recitals, statements, representations or 
warranties made by the Borrower or any other Person whether contained herein 
or otherwise or for the value, validity, effectiveness, genuineness, 
enforceability or sufficiency of this Agreement, the other Loan Documents or 
any other document referred to or provided for herein or therein or for any 
failure by the Borrower or any other Person to perform its obligations 
hereunder or thereunder or in respect of the Notes.  The Administrative Agent 
may employ agents and attorneys-in-fact and shall not be responsible for the 
negligence or misconduct of any such agents or attorneys-in-fact selected by 
it with reasonable care.  The Administrative Agent, the Agents and any of 
their directors, officers, employees or agents shall not be responsible for 
any action taken or omitted to be taken by it or them hereunder or in 
connection herewith, except for its or their own gross negligence or willful 
misconduct.  The Administrative Agent in its separate capacity as a Bank 
shall have the same rights and powers hereunder as any other Bank.

     SECTION 15.2.  ACTIONS BY ADMINISTRATIVE AGENT.  The Administrative 
Agent shall be fully justified in failing or refusing to take any action 
under this Agreement as reasonably deemed appropriate unless it shall first 
have received the consent of the Majority Banks (or, when 

<PAGE>

expressly required hereby, all of the Banks), and shall be indemnified to its 
reasonable satisfaction by the Banks against any and all liability and 
expense which may be incurred by it by reason of taking or continuing to take 
any such action.  The Administrative Agent shall in all cases be fully 
protected in acting, or in refraining from acting, under this Agreement or 
any of the Loan Documents in accordance with the instruction of the Majority 
Banks (or, when expressly required hereby or thereby, all of the Banks), and 
such instruction and any action taken or failure to act pursuant thereto 
shall be binding upon the Banks and all future holders of the Notes or any 
Letter of Credit Participation.

     SECTION 15.3.  INDEMNIFICATION.  Without limiting the obligations of the 
Borrower hereunder or under any other Loan Document, the Banks agree to 
indemnify the Administrative Agent, its affiliates and its respective 
directors, officers, agents and employees (to the extent not reimbursed by 
the Borrower) ratably in accordance with their respective Commitment 
Percentages for any and all liabilities, obligations, losses, damages, 
penalties, actions, judgments, suits, costs, expenses or disbursements of any 
kind or nature whatsoever which may at any time be imposed on, incurred by or 
asserted against the Administrative Agent in any way relating to or arising 
out of this Agreement or any other Loan Document or any documents 
contemplated by or referred to herein or therein or the transactions 
contemplated hereby or thereby or the enforcement of any of the terms hereof 
or thereof or of any such other documents; PROVIDED, that no Bank shall be 
liable for any of the foregoing to the extent they arise from the gross 
negligence or willful misconduct of the Administrative Agent (or any agent 
thereof) and provided further that no Bank shall be liable with respect to 
acts of Section 20 Subsidiaries of other Banks, IT BEING THE INTENT OF THE 
PARTIES HERETO THAT ALL SUCH INDEMNIFIED PARTIES SHALL BE INDEMNIFIED FOR 
THEIR ORDINARY SOLE OR CONTRIBUTORY NEGLIGENCE.

     SECTION 15.4.  REIMBURSEMENT.  Without limiting the provisions of 
Sections 5.1(a), 5.13, and 13, the Administrative Agent shall not be obliged 
to make available to any Person any sum which the Administrative Agent is 
expecting to receive for the account of that Person until the Administrative 
Agent has determined that it has received that sum.  The Administrative Agent 
may, however, disburse funds prior to determining that the sums which the 
Administrative Agent expects to receive have been finally and unconditionally 
paid to the Administrative Agent, if the Administrative Agent wishes to do 
so.  If and to the extent that the Administrative Agent does disburse funds 
and it later becomes apparent that the Administrative Agent did not then 
receive a payment in an amount equal to the sum paid out, then any Person to 
whom the Administrative Agent made the funds available shall, on demand from 
the Administrative Agent, refund to the Administrative Agent the sum paid to 
that Person.  If, in the opinion of the Administrative Agent, the 
distribution of any amount received by it in such capacity hereunder or under 
the other Loan Documents might involve it in liability, it may refrain from 
making distribution until its right to make distribution shall have been 
adjudicated by a court of competent jurisdiction. If a court of competent 
jurisdiction shall adjudge that any amount received and distributed by the 
Administrative Agent is to be repaid, each Person to whom any such 
distribution shall have been made shall either repay to the Administrative 
Agent its proportionate share of the amount so adjudged to be repaid or shall 
pay over the same in such manner and to such Persons as shall be determined 
by such court.

<PAGE>

     SECTION 15.5.  DOCUMENTS.  The Administrative Agent will forward to each 
Bank, promptly after receipt thereof, a copy of each notice or other document 
furnished to the Administrative Agent for such Bank hereunder; PROVIDED, 
HOWEVER, that, notwithstanding the foregoing, the Administrative Agent may 
furnish to the Banks a monthly summary with respect to Letters of Credit 
issued hereunder in lieu of copies of the related Letter of Credit 
Applications.

     SECTION 15.6.  NON-RELIANCE ON ADMINISTRATIVE AGENT AND OTHER BANKS.  
Each Bank represents that it has, independently and without reliance on the 
Administrative Agent, the Agents or any other Bank, and based on such 
documents and information as it has deemed appropriate, made its own 
appraisal of the financial condition and affairs of the Borrower and the 
Guarantors and the decision to enter into this Agreement and the other Loan 
Documents and agrees that it will, independently and without reliance upon 
the Administrative Agent, the Agent or any other Bank, and based on such 
documents and information as it shall deem appropriate at the time, continue 
to make its own appraisals and decisions in taking or not taking action under 
this Agreement or any other Loan Document.  Except as herein expressly 
provided to the contrary, the Administrative Agent shall not be required to 
keep informed as to the performance or observance by the Borrower and the 
Guarantors of this Agreement, the other Loan Documents or any other document 
referred to or provided for herein or therein or by any other Person of any 
other agreement or to make inquiry of, or to inspect the properties or books 
of, any Person.  Except for notices, reports and other documents and 
information expressly required to be furnished to the Banks by the 
Administrative Agent hereunder, the Administrative Agent shall not have any 
duty or responsibility to provide any Bank with any credit or other 
information concerning any person which may come into the possession of the 
Administrative Agent or any of their affiliates.  Each Bank shall have access 
to all documents relating to the Administrative Agent's performance of their 
duties hereunder at such Bank's request. Unless any Bank shall promptly 
object to any action taken by the Administrative Agent hereunder of which 
such Bank has actual knowledge (other than actions which require the prior 
consent of such Bank in accordance with the terms hereof or to which the 
provisions of Section 15.8 are applicable and other than actions which 
constitute gross negligence or willful misconduct by the Administrative 
Agent), such Bank shall be presumed to have approved the same.

     SECTION 15.7.  RESIGNATION OF ADMINISTRATIVE AGENT.  The Administrative 
Agent may resign at any time by giving 60 days' prior written notice thereof 
to the Banks and the Borrower.  Upon any such resignation, the Banks (other 
than the resigning Administrative Agent) shall have the right to appoint a 
successor Administrative Agent from among the Banks. If no successor to the 
Administrative Agent shall have been so appointed by the Banks and shall have 
accepted such appointment within 30 days after the retiring Administrative 
Agent's giving of notice of resignation, then the retiring Administrative 
Agent may, on behalf of the Banks, appoint a successor Administrative Agent 
from among the remaining Banks, which shall be a financial institution having 
a combined capital and surplus in excess of $1,000,000,000. Upon the 
acceptance of any appointment as the Administrative Agent hereunder by a 
successor Administrative Agent, such successor Administrative Agent shall 
thereupon succeed to and become vested with all the rights, powers, 
privileges and duties of the retiring Administrative Agent, and the retiring 
Administrative Agent shall be discharged from its duties and obligations 
hereunder.  After the retiring Administrative Agent's resignation, the 
provisions of this 

<PAGE>

Agreement shall continue in effect for its benefit in respect of any actions 
taken or omitted to be taken by it while it was acting as the Administrative 
Agent.  Any new Issuing Bank appointed pursuant to this Section 15.7 shall 
immediately issue new Letters of Credit in place of Letters of Credit 
previously issued or, if acceptable to the resigning Issuing Bank, issue 
letters of credit in favor of the resigning Issuing Bank as security for the 
outstanding Letters of Credit and shall in due course replace all Letters of 
Credit previously issued by the resigning Issuing Bank.

     SECTION 15.8.  ACTION BY THE BANKS, CONSENTS, AMENDMENTS, WAIVERS, ETC.  
Any action to be taken (including the giving of notice) may be taken, any 
consent or approval required or permitted by this Agreement or any other Loan 
Document to be given by the Banks may be given, any term of this Agreement, 
any other Loan Document or any other instrument, document or agreement 
related to this Agreement or the other Loan Documents or mentioned therein 
may be amended, and the performance or observance by the Borrower or any 
other Person of any of the terms thereof and any Default or Event of Default 
(as defined in any of the above-referenced documents or instruments) may be 
waived (either generally or in a particular instance and either retroactively 
or prospectively), only with the written consent of the Majority Banks; 
PROVIDED, HOWEVER, that no such consent or amendment which affects the 
rights, duties or liabilities of the Administrative Agent or any Issuing Bank 
shall be effective without the written consent of the Administrative Agent or 
such Issuing Bank, as the case may be. Notwithstanding the foregoing, no 
amendment, waiver or consent shall do any of the following unless in writing 
and signed by ALL of the Banks (a) increase the principal amount of the Total 
Commitment (or subject any Bank to any additional obligations), (b) reduce 
the principal of or interest on the Notes (including, without limitation, 
interest on overdue amounts) or any fees payable hereunder, (c) postpone any 
date fixed for any payment in respect of principal or interest (including, 
without limitation, interest on overdue amounts) on the Notes or any fee 
hereunder; (d) change the definition of "Majority Banks" or number of Banks 
which shall be required for the Banks or any of them to take any action under 
the Loan Documents; (e) amend this Section 15.8; (f) change the Commitment 
Percentage of any Bank, except as permitted under Section 20 hereof, (g) 
change the Total Commitment Percentage of any Bank, or (h) release the 
Borrower or any Guarantor from its obligations hereunder (except as expressly 
set forth herein).

     SECTION 16.  INDEMNIFICATION.  The Borrower agrees to indemnify and hold 
harmless the Banks, the Agents, the Issuing Banks, and the Administrative 
Agent and their affiliates, as well as the Banks' and the Administrative 
Agent's and their affiliates' shareholders, directors, agents, officers, 
subsidiaries and affiliates, from and against all damages, losses, settlement 
payments, obligations, liabilities, claims, suits, penalties, assessments, 
citations, directives, demands, judgments, actions or causes of action, 
whether statutorily created or under the common law, and reasonable costs and 
expenses incurred, suffered, sustained or required to be paid by an 
indemnified party by reason of or resulting from the transactions 
contemplated hereby, except any of the foregoing which result from the gross 
negligence or willful misconduct of any indemnified party.  In any 
investigation, enforcement matter, proceeding or litigation, or the 
preparation therefor, the Banks and the Administrative Agent shall be 
entitled to select their own counsel and, in addition to the foregoing 
indemnity, the Borrower agrees to pay promptly the reasonable fees and 
expenses of such counsel.  In the event of the commencement of any such 
proceeding or litigation against the Banks or Administrative Agent by third 
parties, the Borrower 

<PAGE>

shall be entitled to participate in such proceeding or litigation with 
counsel of their choice at their expense, PROVIDED that such counsel shall be 
reasonably satisfactory to the Banks or Administrative Agent.  The covenants 
of this Section 16 shall survive payment or satisfaction of payment of 
amounts owing with respect to any Note or any other Loan Document and 
satisfaction of all the Obligations hereunder, IT BEING THE INTENT OF THE 
PARTIES HERETO THAT ALL SUCH INDEMNIFIED PARTIES SHALL BE INDEMNIFIED FOR 
THEIR ORDINARY SOLE OR CONTRIBUTORY NEGLIGENCE.

     SECTION 17.  WITHHOLDING TAXES.  The Borrower hereby agrees that:

          (a)  Any and all payments made by the Borrower hereunder shall be made
     free and clear of, and without deduction for, any and all present or future
     taxes, levies, fees, duties, imposts, deductions, charges or withholdings
     of any nature whatsoever, excluding, in the case of the Administrative
     Agent or the Banks or any holder of the Notes, (i) taxes imposed on, or
     measured by, its net income or profits, (ii) franchise taxes imposed on it,
     (iii) taxes imposed by any jurisdiction as a direct consequence of it, or
     any of its affiliates, having a present or former connection with such
     jurisdiction, including, without limitation, being organized, existing or
     qualified to do business, doing business or maintaining a permanent
     establishment or office in such jurisdiction, and (iv) taxes imposed by
     reason of its failure to comply with any applicable certification,
     identification, information, documentation or other reporting requirement
     (all such non-excluded taxes being hereinafter referred to as
     "Indemnifiable Taxes").  In the event that any withholding or deduction
     from any payment to be made by the Borrower hereunder is required in
     respect of any Indemnifiable Taxes pursuant to any applicable law, or
     governmental rule or regulation, then the Borrower will (i) direct to the
     relevant taxing authority the full amount required to be so withheld or
     deducted, (ii) forward to the Administrative Agent for delivery to the
     applicable Bank an official receipt or other documentation satisfactory to
     the Administrative Agent and the applicable Bank evidencing such payment to
     such taxing authority, and (iii) direct to the Administrative Agent for the
     account of the relevant Banks such additional amount or amounts as is
     necessary to ensure that the net amount actually received by each relevant
     Bank will equal the full amount such Bank would have received had no such
     withholding or deduction (including any Indemnifiable Taxes on such
     additional amounts) been required.  Moreover, if any Indemnifiable Taxes
     are directly asserted against the Administrative Agent or any Bank with
     respect to any payment received by the Administrative Agent or such Bank by
     reason of the Borrower's failure to properly deduct and withhold such
     Indemnifiable Taxes from such payment, the Administrative Agent or such
     Bank may pay such Indemnifiable Taxes and the Borrower will promptly pay
     all such additional amounts (including any penalties, interest or
     reasonable expenses) as is necessary in order that the net amount received
     by such Person after the payment of such Indemnifiable Taxes (including any
     Indemnifiable Taxes on such additional amount) shall equal the amount such
     Person would have received had not such Indemnifiable Taxes been asserted. 
     Any such payment shall be made promptly after the receipt by the Borrower
     from the Administrative Agent or such Bank, as the case may be, of a
     written statement 

<PAGE>

     setting forth in reasonable detail the amount of the Indemnifiable Taxes 
     and the basis of the claim.

          (b)  The Borrower shall pay any present or future stamp or documentary
     taxes or any other excise or any other similar levies which arise from any
     payment made hereunder or from the execution, delivery or registration of,
     or otherwise with respect to, this Agreement or any other Loan Document
     ("Other Taxes").

          (c)  The Borrower hereby indemnifies and holds harmless the
     Administrative Agent and each Bank for the full amount of Indemnifiable
     Taxes or Other Taxes (including, without limitation, any Indemnifiable
     Taxes or Other Taxes imposed on amounts payable under this Section 17) paid
     by the Administrative Agent or such Bank, as the case may be, and any
     liability (including penalties, interest and reasonable expenses) arising
     therefrom or with respect thereto, by reason of the Borrower's failure to
     properly deduct and withhold Indemnifiable Taxes pursuant to paragraph (a)
     above or to properly pay Other Taxes pursuant to paragraph (b) above.  Any
     indemnification payment from the Borrower under the preceding sentence
     shall be made promptly after receipt by the Borrower from the
     Administrative Agent or Bank of a written statement setting forth in
     reasonable detail the amount of such Indemnifiable Taxes or such Other
     Taxes, as the case may be, and the basis of the claim.

          (d)  If the Borrower pays any amount under this Section 17 to the
     Administrative Agent or any Bank and such payee knowingly receives a refund
     of any taxes with respect to which such amount was paid, the Administrative
     Agent or such Bank, as the case may be, shall pay to the Borrower the
     amount of such refund promptly following the receipt thereof by such payee.

          (e)  In the event any taxing authority notifies any of the Borrower
     that any of them has improperly failed to deduct or withhold any taxes
     (other than Indemnifiable Taxes) from a payment made hereunder to the
     Administrative Agent or any Bank, the Borrower shall timely and fully pay
     such taxes to such taxing authority.

          (f)  The Administrative Agent or the Banks shall, upon the request of
     the Borrower, take reasonable measures to avoid or mitigate the amount of
     Indemnifiable Taxes required to be deducted or withheld from any payment
     made hereunder if such measures can be taken without such Person in its
     sole judgment suffering any legal, regulatory or economic disadvantage.

          (g)  Without prejudice to the survival of any other agreement of the
     parties hereunder, the agreements and obligations of the Borrower contained
     in this Section 17 shall survive the payment in full of the Obligations.

     SECTION 18.  TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION.  

     SECTION 18.1.  SHARING OF INFORMATION WITH SECTION 20 SUBSIDIARY.  The 
Borrower acknowledges that from time to time financial advisory, investment 
banking and other services may be offered 

<PAGE>

or provided to the Borrower or one or more of its Subsidiaries, in connection 
with this Agreement or otherwise, by a Section 20 Subsidiary.  The Borrower, 
for itself and each of its Subsidiaries, hereby authorizes (a) such Section 
20 Subsidiary to share with the Administrative Agent and each Bank any 
information delivered to such Section 20 Subsidiary by the Borrower or any of 
its Subsidiaries, and (b) the Administrative Agent and each Bank to share 
with such Section 20 Subsidiary any information delivered to the 
Administrative Agent or such Bank by the Borrower or any of its Subsidiaries 
pursuant to this Agreement, or in connection with the decision of such Bank 
to enter into this Agreement; it being understood, in each case, that any 
such Section 20 Subsidiary receiving such information shall be bound by the 
confidentiality provisions of this Agreement.  Such authorization shall 
survive the payment and satisfaction in full of all of Obligations.

     SECTION 18.2.  CONFIDENTIALITY.  Each of the Banks and the 
Administrative Agent agrees, on behalf of itself and each of its affiliates, 
directors, officers, employees and representatives, to use reasonable 
precautions to keep confidential, in accordance with their customary 
procedures for handling confidential information of the same nature and in 
accordance with safe and sound banking practices, any non-public information 
supplied to it by the Borrower or any of its Subsidiaries pursuant to this 
Agreement that is identified by such Person as being confidential at the time 
the same is delivered to the Banks or the Administrative Agent, provided that 
nothing herein shall limit the disclosure of any such information (a) after 
such information shall have become public other than through a violation of 
this Section 18, (b) to the extent required by statute, rule, regulation or 
judicial process, (c) to counsel for any of the Banks or the Administrative 
Agent, (d) to bank examiners or any other regulatory authority having 
jurisdiction over any Bank or the Administrative Agent, or to auditors or 
accountants, (e) to the Administrative Agent, any Bank or any Section 20 
Subsidiary, (f) in connection with any litigation to which any one or more of 
the Banks, the Administrative Agent or any Section 20 Subsidiary is a party, 
or in connection with the enforcement of rights or remedies hereunder or 
under any other Loan Document, (g) to a Subsidiary or affiliate of such Bank 
as provided in Section 18.1 or (h) to any assignee or participant (or 
prospective assignee or participant) so long as such assignee or participant 
agrees to be bound by the provisions of Section 20.

     SECTION 18.3.  PRIOR NOTIFICATION.  Unless specifically prohibited by 
applicable law or court order, each of the Banks and the Administrative Agent 
shall, prior to disclosure thereof, notify the Borrower of any request for 
disclosure of any such non-public information by any governmental agency or 
representative thereof (other than any such request in connection with an 
examination of the financial condition of such Bank by such governmental 
agency) or pursuant to legal process.

     SECTION 18.4.  OTHER.  In no event shall any Bank or the Administrative 
Agent be obligated or required to return any materials furnished to it or any 
Section 20 Subsidiary by the Borrower or any of its Subsidiaries.  The 
obligations of each Bank under this Section 18 shall supersede and replace 
the obligations of such Bank under any confidentiality letter in respect of 
this financing signed and delivered by such Bank to the Borrower prior to the 
date hereof and shall be binding upon any assignee of, or purchaser of any 
participation in, any interest in any of the Loans or Reimbursement 
Obligations from any Bank.

<PAGE>

     SECTION 19.  SURVIVAL OF COVENANTS, ETC.  Unless otherwise stated 
herein, all covenants, agreements, representations and warranties made 
herein, in the other Loan Documents or in any documents or other papers 
delivered by or on behalf of the Borrower or any Guarantor pursuant hereto 
shall be deemed to have been relied upon by the Banks, the Issuing Banks and 
the Administrative Agent, notwithstanding any investigation heretofore or 
hereafter made by them, and shall survive the making by the Banks of the 
Loans and the issuance, extension or renewal of any Letters of Credit by any 
Issuing Bank, as herein contemplated, and shall continue in full force and 
effect so long as any amount due under this Agreement, any Obligation, any 
Letter of Credit or any Note remains outstanding and unpaid or any Bank has 
any obligation to make any Loans or any Issuing Bank has any obligation to 
issue, extend, or renew any Letters of Credit hereunder.  All statements 
contained in any certificate or other paper delivered by or on behalf of the 
Borrower pursuant hereto or in connection with the transactions contemplated 
hereby shall constitute representations and warranties by the Borrower 
hereunder.

     SECTION 20.  ASSIGNMENT AND PARTICIPATION.  It is understood and agreed 
that each Bank shall have the right to assign at any time all or a portion of 
its Commitment Percentage and interests in the risk relating to the Loans, 
outstanding Letters of Credit and its Commitment hereunder in an amount equal 
to or greater than $5,000,000 (or, if a Bank's Commitment is less than 
$5,000,000, in a minimum amount equal to such Bank's Commitment, PROVIDED 
that prior to any Commitment reductions pursuant to Section 2.3, such Bank's 
Commitment was at least $10,000,000) to additional banks or other financial 
institutions with the prior written approval of the Administrative Agent and, 
so long as no Event of Default has occurred and is continuing, the Borrower, 
which approvals shall not be unreasonably withheld. Any Bank may at any time, 
and from time to time, assign to any branch, lending office, or affiliate or 
such Bank all or any part of its rights and obligations under the Loan 
Documents by notice to the Administrative Agent and the Borrower. It is 
further agreed that each bank or other financial institution which executes 
and delivers to the Administrative Agent and the Borrower hereunder an 
Assignment and Acceptance substantially in the form of EXHIBIT G hereto (an 
"Assignment and Acceptance") together with an assignment fee in the amount of 
$2,500 payable by the assigning Bank to the Administrative Agent, shall, on 
the date specified in such Assignment and Acceptance, become a party to this 
Agreement and the other Loan Documents for all purposes of this Agreement and 
the other Loan Documents, and its portion of the Commitment, the Loans and 
Letters of Credit shall be as set forth in such Assignment and Acceptance.  
The Bank assignor thereunder shall, to the extent that rights and obligations 
hereunder have been assigned by it pursuant to such Assignment and 
Acceptance, relinquish its rights and be released from its obligations under 
this Agreement and the other Loan Documents.  Upon the execution and delivery 
of such Assignment and Acceptance, (a) the Borrower shall issue to the 
assignee bank or other financial institution Notes in the amount of such 
bank's or other financial institution's Commitment dated the date of the 
assignment or such other date as may be specified by the Administrative 
Agent, and otherwise completed in substantially the form of EXHIBITS A or B, 
and to the extent any assigning Bank has retained a portion of its 
obligations hereunder, a replacement Syndicated Note, to the assigning Bank 
reflecting its assignment; (b) to the extent applicable, the Borrower shall 
issue a Competitive Bid Note in substantially the form of EXHIBIT C (and a 
replacement Competitive Bid Note) or the Administrative Agent shall make 
appropriate entries on the Competitive Bid Loan Accounts to reflect such 
assignment of Competitive Bid Loan(s); (c) the Administrative Agent 

<PAGE>

shall distribute to the Borrower, the Banks and such bank or financial 
institution a schedule reflecting such changes; and (d) this Agreement shall 
be deemed to be appropriately amended to reflect (i) the status of the bank 
or financial institution as a party hereto and (ii) the status and rights of 
the Banks hereunder.

     Each Bank shall also have the right to grant participations to one or 
more banks or other financial institutions in its Commitment, the Loans and 
outstanding Letters of Credit.  The documents evidencing any such 
participation shall limit such participating bank's or financial 
institution's voting rights with respect to this Agreement to the matters set 
forth in Section 15.8 which require the approval of all Banks.

     Notwithstanding the foregoing, no assignment or participation shall 
operate to increase the Total Commitment hereunder or otherwise alter the 
substantive terms of this Agreement, and no Bank which retains a Commitment 
hereunder shall have a Commitment of less than $10,000,000, as such amount 
may be reduced upon reductions in the Total Commitment pursuant to Section 
2.3 hereof.

     Anything contained in this Section 20 to the contrary notwithstanding, 
any Bank may at any time pledge all or any portion of its interest and rights 
under this Agreement (including all or any portion of its Notes) to any of 
the twelve Federal Reserve Banks organized under Section 4 of the Federal 
Reserve Act, 12 U.S.C. Section 341.  No such pledge or the enforcement 
thereof shall release the pledgor Bank from its obligations hereunder or 
under any of the other Loan Documents.

     The Borrower agrees that in addition to disclosures made in accordance 
with standard and customary banking practices any Bank may disclose 
information obtained by such Bank pursuant to this Agreement to assignees or 
participants and potential assignees or participants hereunder; provided that 
such assignees or participants or potential assignees or participants shall 
agree to be bound by Section 18 hereof.

     SECTION 21.  PARTIES IN INTEREST.  All the terms of this Agreement and 
the other Loan Documents shall be binding upon and inure to the benefit of 
and be enforceable by the respective successors and assigns of the parties 
hereto and thereto; PROVIDED, that the Borrower shall not assign or transfer 
its rights or obligations hereunder or thereunder without the prior written 
consent of each of the Banks.

     SECTION 22.  NOTICES, ETC.  Except as otherwise expressly provided in 
this Agreement, all notices and other communications made or required to be 
given pursuant to this Agreement or the other Loan Documents shall be in 
writing and shall be delivered in hand, mailed by United States first class 
mail, postage prepaid, or sent by telegraph, telex or facsimile and confirmed 
by letter, addressed as follows:

          (a)  if to the Borrower or the Guarantors, at 1001 Fannin Street,
     Suite 4000, Houston, Texas 77002, Attention: Earl E. DeFrates, facsimile
     number (713) 209-9710; or

<PAGE>

          (b)  if to BOA, at Bank of America National Trust and Savings
     Association, 231 South LaSalle Street, Chicago, Illinois 60697,
     Attention: Robert P. Rospierski, Managing Director, facsimile number
     (312) 828-1974; or

          (c)  if to MGT, J.P. Morgan Securities Inc. or the Administrative
     Agent at Morgan Guaranty Trust Company of New York, 60 Wall Street, New
     York, New York 10260-0060, facsimile number (212) 648-5018; or

          (d)  if to any Bank, at the address set forth next to such Bank's name
     on SCHEDULE 1 hereto;

or such other address for notice as shall have last been furnished in writing to
the Person giving the notice.

     Any such notice or demand shall be deemed to have been duly given or made
and to have become effective (a) if delivered by hand to a responsible officer
of the party to which it is directed, at the time of the receipt thereof by such
officer, (b) if sent by registered or certified first-class mail, postage
prepaid, five Business Days after the posting thereof, and (c) if sent by telex,
facsimile, or cable, at the time of the dispatch thereof, if in normal business
hours in the country of receipt, or otherwise at the opening of business on the
following Business Day.

     SECTION 23.  MISCELLANEOUS.  The rights and remedies herein expressed 
are cumulative and not exclusive of any other rights which the Banks, the 
Issuing Banks or the Administrative Agent would otherwise have.  The captions 
in this Agreement are for convenience of reference only and shall not define 
or limit the provisions hereof.  This Agreement and any amendment hereof may 
be executed in several counterparts and by each party on a separate 
counterpart, each of which when so executed and delivered shall be an 
original, but all of which together shall constitute one instrument.  In 
proving this Agreement it shall not be necessary to produce or account for 
more than one such counterpart signed by the party against whom enforcement 
is sought.

     SECTION 24.  CONSENTS, ETC.  Neither this Agreement nor any term hereof 
may be changed, waived, discharged or terminated, except as provided in this 
Section 24, subject to the provisions of Section 15.8.  No waiver shall 
extend to or affect any obligation not expressly waived or impair any right 
consequent thereon.  Except as otherwise expressly provided in this 
Agreement, any consent or approval required or permitted by this Agreement to 
be given by the Banks may be given, and any term of this Agreement or of any 
other instrument related hereto or mentioned herein may be amended, and the 
performance or observance by the Borrower of any terms of this Agreement or 
such other instrument or the continuance of any Default or Event of Default 
may be waived (either generally or in a particular instance and either 
retroactively or prospectively) with, but only with, the written consent of 
the Borrower and the Majority Banks.  To the extent permitted by law, no 
course of dealing or delay or omission on the part of any of the Banks, the 
Issuing Banks or the Administrative Agent in exercising any right shall 
operate as a waiver thereof or otherwise be prejudicial thereto.  No notice 
to or demand upon the Borrower shall entitle the Borrower to other or further 
notice or demand in similar or other circumstances.

<PAGE>

     SECTION 25.  WAIVER OF JURY TRIAL.  TO THE EXTENT PERMITTED BY APPLICABLE
LAW, EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT 
TO A JURY TRIAL WITH RESPECT TO ANY ACTION OR CLAIM ARISING OUT OF ANY 
DISPUTE IN CONNECTION WITH THIS AGREEMENT, THE NOTES OR ANY OF THE OTHER LOAN 
DOCUMENTS, ANY RIGHTS OR OBLIGATIONS HEREUNDER OR THEREUNDER OR THE 
PERFORMANCE OF SUCH RIGHTS AND OBLIGATIONS. EXCEPT AS PROHIBITED BY LAW, THE 
BORROWER AND THE GUARANTORS HEREBY WAIVE ANY RIGHT ANY OF THEM MAY HAVE TO 
CLAIM OR RECOVER IN ANY LITIGATION REFERRED TO IN THE PRECEDING SENTENCE ANY 
SPECIAL, EXEMPLARY, PUNITIVE OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES OTHER 
THAN, OR IN ADDITION TO, ACTUAL DAMAGES.  THE BORROWER AND EACH OF THE 
GUARANTORS EACH (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF 
ANY BANK, ANY ISSUING BANK, THE ADMINISTRATIVE AGENT OR ANY AGENT HAS 
REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH BANK, SUCH ISSUING BANK, THE 
ADMINISTRATIVE AGENT OR SUCH AGENT WOULD NOT, IN THE EVENT OF LITIGATION, 
SEEK TO ENFORCE THE FOREGOING WAIVERS AND (B) ACKNOWLEDGES THAT THE 
ADMINISTRATIVE AGENT, THE BANKS, AND THE ISSUING BANKS HAVE BEEN INDUCED TO 
ENTER INTO THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS BECAUSE OF, AMONG 
OTHER THINGS, THE BORROWER'S AND THE GUARANTORS' WAIVERS AND CERTIFICATIONS 
CONTAINED HEREIN.

     SECTION 26.  GOVERNING LAW; SUBMISSION TO JURISDICTION.  THIS AGREEMENT 
AND EACH OF THE OTHER LOAN DOCUMENTS ARE CONTRACTS UNDER THE LAWS OF THE 
STATE OF NEW YORK AND SHALL, PURSUANT TO NEW YORK GENERAL OBLIGATIONS LAW 
SECTION 5-1401, BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF 
THE STATE OF NEW YORK.  THE BORROWER AND THE GUARANTORS CONSENT AND AGREE 
THAT ANY SUIT FOR THE ENFORCEMENT OF THIS AGREEMENT OR ANY OF THE OTHER LOAN 
DOCUMENTS MAY BE BROUGHT IN THE COURTS OF THE STATE OF NEW YORK OR ANY 
FEDERAL COURT SITTING THEREIN AND CONSENTS TO THE NONEXCLUSIVE JURISDICTION 
OF SUCH COURT AND SERVICE OF PROCESS IN ANY SUCH SUIT BEING MADE UPON THE 
BORROWER IN ACCORDANCE WITH LAW AT THE ADDRESS SPECIFIED IN SECTION 22.  THE 
BORROWER AND EACH OF THE GUARANTORS HEREBY WAIVE ANY OBJECTION THAT THEY MAY 
NOW OR HEREAFTER HAVE TO THE VENUE OF ANY SUCH SUIT OR ANY SUCH COURT OR THAT 
SUCH SUIT IS BROUGHT IN AN INCONVENIENT COURT.

     SECTION 27.  SEVERABILITY.  The provisions of this Agreement are 
severable and if any one clause or provision hereof shall be held invalid or 
unenforceable in whole or in part in any jurisdiction, then such invalidity 
or unenforceability shall affect only such clause or provision, or 

<PAGE>

part thereof, in such jurisdiction, and shall not in any manner affect such 
clause or provision in any other jurisdiction, or any other clause or 
provision of this Agreement in any jurisdiction.

     SECTION 28.  GUARANTY.  

     SECTION 28.1.  GUARANTY.  For value received and hereby acknowledged and 
as an inducement to the Banks and the Issuing Banks to make the Loans 
available to the Borrower, and issue, extend or renew Letters of Credit for 
the account of the Borrower, each Guarantor hereby unconditionally and 
irrevocably guarantees (a) the full punctual payment when due, whether at 
stated maturity, by acceleration or otherwise, of all Obligations of the 
Borrower now or hereafter existing whether for principal, interest, fees, 
expenses or otherwise, and (b) the strict performance and observance by the 
Borrower of all agreements, warranties and covenants applicable to the 
Borrower in the Loan Documents and (c) the obligations of the Borrower under 
the Loan Documents (such Obligations collectively being hereafter referred to 
as the "Guaranteed Obligations").

     SECTION 28.2.  GUARANTY ABSOLUTE.  Each of the Guarantors guarantees 
that the Guaranteed Obligations will be paid strictly in accordance with the 
terms hereof, regardless of any law, regulation or order now or hereafter in 
effect in any jurisdiction affecting any of such terms or the rights of any 
Bank, any Issuing Bank or the Administrative Agent with respect thereto.  The 
liability of the Guarantors under the guaranty granted under this Agreement 
with regard to the Guaranteed Obligations shall be absolute and unconditional 
irrespective of:

          (a)  any change in the time, manner or place of payment of, or in any
     other term of, all or any of its Guaranteed Obligations or any other
     amendment or waiver of or any consent to departure from this Agreement or
     any other Loan Document (with regard to such Guaranteed Obligations);

          (b)  any release or amendment or waiver of or consent to departure
     from any other guaranty for all or any of its Guaranteed Obligations;

          (c)  any change in ownership of the Borrower;

          (d)  any acceptance of any partial payment(s) from the Borrower or any
     other Guarantor; or

          (e)  any other circumstance which might otherwise constitute a defense
     available to, or a discharge of, the Borrower in respect of its Obligations
     under any Loan Document.

     The guaranty under this Agreement shall continue to be effective or be
reinstated, as the case may be, if at any time any payment of any Guaranteed
Obligation is rescinded or must otherwise be returned by the Banks, the Issuing
Banks or the Administrative Agent upon the insolvency, bankruptcy or
reorganization of the Borrower or otherwise, all as though such payment had not
been made.

<PAGE>

     SECTION 28.3.  EFFECTIVENESS; ENFORCEMENT.  The guaranty under this 
Agreement shall be effective and shall be deemed to be made with respect to 
each Loan and each Letter of Credit as of the time it is made, issued or 
extended, or becomes a Letter of Credit under this Agreement, as applicable.  
No invalidity, irregularity or unenforceability by reason of any bankruptcy 
or similar law, or any law or order of any government or agency thereof 
purporting to reduce, amend or otherwise affect any liability of the 
Borrower, and no defect in or insufficiency or want of powers of the Borrower 
or irregular or improperly recorded exercise thereof, shall impair, affect, 
be a defense to or claim against such guaranty.  The guaranty under this 
Agreement is a continuing guaranty and shall (a) survive any termination of 
this Agreement, and (b) remain in full force and effect until payment in full 
of, and performance of, all Guaranteed Obligations and all other amounts 
payable under this Agreement. Notwithstanding anything set forth in this 
Section 28 to the contrary, (x) Sanifill shall be released from its guaranty 
obligations upon the satisfaction (as determined in the Administrative 
Agent's judgment and evidenced by a release executed by the Administrative 
Agent) of the Prudential Private Placement Debt and the Sanifill Convertible 
Subordinated Debt, and (y) United shall be released from its guaranty 
obligations upon the satisfaction (as determined in the Administrative 
Agent's judgment and evidenced by a release executed by the Administrative 
Agent) of the United Indenture and the United Senior Secured Notes.  The 
guaranty under this Agreement is made for the benefit of the Administrative 
Agent, the Issuing Banks and the Banks and their successors and assigns, and 
may be enforced from time to time as often as occasion therefor may arise and 
without requirement on the part of the Administrative Agent, the Issuing 
Banks or the Banks first to exercise any rights against the Borrower, or to 
resort to any other source or means of obtaining payment of any of the said 
obligations or to elect any other remedy.

     SECTION 28.4.  WAIVER.  Except as otherwise specifically provided in any 
of the Loan Documents, each of the Guarantors hereby waives promptness, 
diligence, protest, notice of protest, all suretyship defenses, notice of 
acceptance and any other notice with respect to any of its Guaranteed 
Obligations and the guaranty under this Agreement and any requirement that 
the Banks, the Issuing Banks or the Administrative Agent protect, secure, 
perfect any security interest or lien or any property subject thereto or 
exhaust any right or take any action against the Borrower or any other 
Person.  Each of the Guarantors also irrevocably waives, to the fullest 
extent permitted by law, all defenses which at any time may be available to 
it in respect of its Guaranteed Obligations by virtue of any statute of 
limitations, valuation, stay, moratorium law or other similar law now or 
hereafter in effect.

     SECTION 28.5.  EXPENSES.  Each of the Guarantors hereby promises to 
reimburse (a) the Administrative Agent for all reasonable out-of-pocket fees 
and disbursements (including all reasonable attorneys' fees), incurred or 
expended in connection with the preparation, filing or recording, or 
interpretation of the guaranty under this Agreement, the other Loan Documents 
to which such Guarantor is a party, or any amendment, modification, approval, 
consent or waiver hereof or thereof, and (b) the Administrative Agent, the 
Issuing Banks and the Banks and their respective affiliates for all 
reasonable out-of-pocket fees and disbursements (including reasonable 
attorneys' fees), incurred or expended in connection with the enforcement of 
its Guaranteed Obligations (whether or not legal proceedings are instituted). 
The Guarantors will pay any taxes (including any interest and penalties in 
respect thereof) other than the Banks' taxes 

<PAGE>

based on overall income or profits, payable on or with respect to the 
transactions contemplated by the guaranty under this Agreement, each of the 
Guarantors hereby agreeing jointly and severally to indemnify each Bank with 
respect thereto.

     SECTION 28.6.  CONCERNING JOINT AND SEVERAL LIABILITY OF THE GUARANTORS.  

          (a)  Each of the Guarantors hereby irrevocably and unconditionally
     accepts, not merely as a surety but also as a co-debtor, joint and several
     liability with the Borrower, with respect to the payment and performance of
     all of its Guaranteed Obligations (including, without limitation, any
     Guaranteed Obligations arising under this Section 28), it being the
     intention of the parties hereto that all such Guaranteed Obligations shall
     be the joint and several Guaranteed Obligations of such Guarantor and the
     Borrower without preferences or distinction among them.

          (b)  If and to the extent that the Borrower shall fail to make any
     payment with respect to any of its Obligations as and when due or to
     perform any of its Guaranteed Obligations in accordance with the terms
     thereof, then in each such event the applicable Guarantor will make such
     payment with respect to, or perform, such Guaranteed Obligation.

          (c)  The Guaranteed Obligations of each Guarantor under the provisions
     of this Section 28 constitute full recourse obligations of such Guarantor
     enforceable against such Guarantor to the full extent of its properties and
     assets, irrespective of the validity, regularity or enforceability of this
     Agreement or any other circumstance whatsoever.

          (d)  Except as otherwise expressly provided in this Agreement, each of
     the Guarantors hereby waives notice of acceptance of its joint and several
     liability, notice of any Loans made, or Letters of Credit issued under this
     Agreement, notice of any action at any time taken or omitted by the
     Administrative Agent, the Issuing Banks or the Banks under or in respect of
     any of the Guaranteed Obligations, and, generally, to the extent permitted
     by applicable law, all demands, notices and other formalities of every kind
     in connection with this Agreement.  Each of the Guarantors hereby assents
     to, and waives notice of, any extension or postponement of the time for the
     payment of any of the Guaranteed Obligations, the acceptance of any payment
     of any of the Guaranteed Obligations, the acceptance of any partial payment
     thereon, any waiver, consent or other action or acquiescence by the
     Administrative Agent, the Issuing Banks or the Banks at any time or times
     in respect of any Default or Event of Default by the Borrower or the
     Guarantors in the performance or satisfaction of any term, covenant,
     condition or provision of this Agreement or any other Loan Document, any
     and all other indulgences whatsoever by the Administrative Agent, the
     Issuing Banks or the Banks in respect of any of the Guaranteed Obligations,
     and the taking, addition, substitution or release, in whole or in part, at
     any time or times, of any security for any of the Guaranteed Obligations or
     the addition, substitution or release, in whole or in part, of the Borrower
     or any Guarantor.  Without limiting the generality of the foregoing, each
     of the Guarantors assents to any other action or delay in acting or failure
     to act on the part of the Banks, the 

<PAGE>

     Issuing Banks or the Administrative Agent with respect to the failure 
     by the Borrower or any Guarantor to comply with its respective 
     Obligations or Guaranteed Obligations, including, without limitation, 
     any failure strictly or diligently to assert any right or to pursue any 
     remedy or to comply fully with applicable law or regulations 
     thereunder, which might, but for the provisions of this Section 28, 
     afford grounds for terminating, discharging or relieving the 
     Guarantors, in whole or in part, from any of the Guaranteed Obligations 
     under this Section 28, it being the intention of the Guarantors that, 
     so long as any of the Guaranteed Obligations hereunder remain 
     unsatisfied, the Guaranteed Obligations of each of the Guarantors under 
     this Section 28 shall not be discharged except by performance and then 
     only to the extent of such performance.  The Guaranteed Obligations of 
     each of the Guarantors under this Section 28 shall not be diminished or 
     rendered unenforceable by any winding up, reorganization, arrangement, 
     liquidation, reconstruction or similar proceeding with respect to the 
     Borrower or any of the Guarantors or the Banks, the Issuing Banks or 
     the Administrative Agent.  The joint and several liability of each of 
     the Guarantors hereunder shall continue in full force and effect 
     notwithstanding any absorption, merger, consolidation, amalgamation or 
     any other change whatsoever in the name, membership, constitution or 
     place of formation of the Borrower or the Guarantors, the Banks, the 
     Issuing Banks or the Administrative Agent. 

          (e)  The Guarantors shall be liable under this Section 28 only for the
     maximum amount of such liabilities that can be incurred under applicable
     law without rendering this Section 28 voidable under applicable law
     relating to fraudulent conveyance and fraudulent transfer, and not for any
     greater amount.  Accordingly, if any obligation under any provision under
     this Section 28 shall be declared to be invalid or unenforceable in any
     respect or to any extent, it is the stated intention and agreement of the
     Guarantors, the Administrative Agent, the Issuing Banks and the Banks that
     any balance of the obligation created by such provision and all other
     obligations of the Guarantors under this Section 28 to the Banks, the
     Issuing Banks or the Administrative Agent shall remain valid and
     enforceable, and that all sums not in excess of those permitted under
     applicable law shall remain fully collectible by the Banks, the Issuing
     Banks and the Administrative Agent from the Borrower or the Guarantors, as
     the case may be.

          (f)  The provisions of this Section 28 are made for the benefit of the
     Administrative Agent, the Issuing Banks and the Banks and their successors
     and assigns, and may be enforced in good faith by them from time to time
     against the Guarantors as often as occasion therefor may arise and without
     requirement on the part of the Administrative Agent, the Issuing Banks or
     the Banks first to marshal any of their claims or to exercise any of their
     rights against the Borrower or the Guarantors or to exhaust any remedies
     available to them against the Borrower or the Guarantors or to resort to
     any other source or means of obtaining payment of any of the obligations
     hereunder or to elect any other remedy.  The provisions of this Section 28
     shall remain in effect until all of the Guaranteed Obligations shall have
     been paid in full or otherwise fully satisfied and the Commitments have
     expired and all outstanding Letters of Credit have expired, matured or
     otherwise been terminated.  If at any time, any payment, or any part
     thereof, made in respect of any of the Guaranteed Obligations, is rescinded
     or must otherwise be restored or returned by 

<PAGE>

     the Banks, the Issuing Banks or the Administrative Agent upon the 
     insolvency, bankruptcy or reorganization of the Borrower or any of the 
     Guarantors, or otherwise, the provisions of this Section 28 will 
     forthwith be reinstated in effect, as though such payment had not been 
     made.

     SECTION 28.7.  WAIVER.  Until the final payment and performance in 
full of all of the Obligations, neither of the Guarantors shall 
exercise and each of the Guarantors hereby waives any rights such 
Guarantor may have against the Borrower or the other Guarantor arising 
as a result of payment by such Guarantor hereunder, by way of 
subrogation, reimbursement, restitution, contribution or otherwise, and 
will not prove any claim in competition with the Administrative Agent, 
the Issuing Banks or any Bank in respect of any payment hereunder in 
any bankruptcy, insolvency or reorganization case or proceedings of any 
nature; such Guarantor will not claim any setoff, recoupment or 
counterclaim against the Borrower or the other Guarantor in respect of 
any liability of the Borrower to such Guarantor; and such Guarantor 
waives any benefit of and any right to participate in any collateral 
security which may be held by the Administrative Agent, the Issuing 
Banks or any Bank.

     SECTION 28.8.  SUBROGATION; SUBORDINATION.  The payment of any 
amounts due with respect to any indebtedness of the Borrower for money 
borrowed or credit received now or hereafter owed to either of the 
Guarantors is hereby subordinated to the prior payment in full of all 
of the Obligations.  Each of the Guarantors agrees that, after the 
occurrence of any default in the payment or performance of any of the 
Obligations, such Guarantor will not demand, sue for or otherwise 
attempt to collect any such indebtedness of the Borrower or the other 
Guarantor to such Guarantor until all of the Obligations shall have 
been paid in full.  If, notwithstanding the foregoing sentence, either 
of the Guarantors shall collect, enforce or receive any amounts in 
respect of such indebtedness while any Obligations are still 
outstanding, such amounts shall be collected, enforced and received by 
such Guarantor as trustee for the Banks, the Issuing Banks and the 
Administrative Agent and be paid over to the Administrative Agent at 
Default, for the benefit of the Banks, the Issuing Banks, and the 
Administrative Agent on account of the Obligations without affecting in 
any manner the liability of such Guarantor under the other provisions 
hereof.

     SECTION 29.  PARI PASSU TREATMENT.  

          (a)  Notwithstanding anything to the contrary set forth herein, each
     payment or prepayment of principal and interest received after the
     occurrence of an Event of Default hereunder shall be distributed pari passu
     among the Banks, in accordance with the aggregate outstanding principal
     amount of the Obligations owing to each Bank divided by the aggregate
     outstanding principal amount of all Obligations.

          (b)  Following the occurrence and during the continuance of any Event
     of Default, each Bank agrees that if it shall, through the exercise of a
     right of banker's lien, setoff or counterclaim against any Borrower
     (pursuant to Section 13 or otherwise), including a secured claim under
     Section 506 of the Bankruptcy Code or other security or interest arising
     from or in lieu of, such secured claim, received by such Bank under any

<PAGE>

     applicable bankruptcy, insolvency or other similar law or otherwise, obtain
     payment (voluntary or involuntary) in respect of the Notes, Loans,
     Reimbursement Obligations and other Obligations held by it (other than
     pursuant to Section 5.5, Section 5.6 or Section 5.8) as a result of which
     the unpaid principal portion of the Notes and the Obligations held by it
     shall be proportionately less than the unpaid principal portion of the
     Notes and Obligations held by any other Bank, it shall be deemed to have
     simultaneously purchased from such other Bank a participation in the Notes
     and Obligations held by such other Bank, so that the aggregate unpaid
     principal amount of the Notes, Obligations and participations in Notes and
     Obligations held by each Bank shall be in the same proportion to the
     aggregate unpaid principal amount of the Notes and Obligations then
     outstanding as the principal amount of the Notes and other Obligations held
     by it prior to such exercise of banker's lien, setoff or counterclaim was
     to the principal amount of all Notes and other Obligations outstanding
     prior to such exercise of banker's lien, setoff or counterclaim; provided,
     however, that if any such purchase or purchases or adjustments shall be
     made pursuant to this Section 29 and the payment giving rise thereto shall
     thereafter be recovered, such purchase or purchases or adjustments shall be
     rescinded to the extent of such recovery and the purchase price or prices
     or adjustments restored without interest.  The Borrower expressly consents
     to the foregoing arrangements and agrees that any Person holding such a
     participation in the Notes and the Obligations deemed to have been so
     purchased may exercise any and all rights of banker's lien, setoff or
     counterclaim with respect to any and all moneys owing by the Borrower to
     such Person as fully as if such Person had made a Loan directly to the
     Borrower in the amount of such participation.

     SECTION 30.  TRANSITIONAL ARRANGEMENTS.  Upon the Effective Date, 
this Agreement shall supersede the Existing Credit Agreement in its 
entirety; PROVIDED, HOWEVER, that the Borrower hereby confirms and 
agrees that the Obligations under this Agreement shall be evidenced by 
the Notes executed as of the Original Closing Date and the Borrower 
further agrees to execute replacement Note(s) after its name change to 
"Waste Management, Inc." if requested by any Bank.

     SECTION 31.  SPECIAL WAIVER.  The Banks hereby waive any Event of 
Default which occurred or may have occurred under the Existing Credit 
Agreement as a result of the naming of eight (8) new board members 
during the twelve (12) months prior to the Effective Date or changes as 
a result of the WMI Merger.

     SECTION 32.  FINAL AGREEMENT.  THIS AGREEMENT AND THE OTHER LOAN 
DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT 
BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT 
ORAL AGREEMENTS OF THE PARTIES.  THERE ARE NO UNWRITTEN ORAL AGREEMENTS 
BETWEEN THE PARTIES. 

<PAGE>

     IN WITNESS WHEREOF, the undersigned have duly executed this Agreement as of
the date first set forth above.

                       THE BORROWER AND GUARANTORS:
                  
                       USA WASTE SERVICES, INC.
                       
                       
                       By: /s/ EARL E. DEFRATES
                           -------------------------------------
                           Name: Earl E. DeFrates
                           Title: Executive Vice President & CFO
                       
                       SANIFILL, INC.
                       
                       
                       By:  /s/ RONALD H. JONES
                           -------------------------------------
                           Name: Ronald H. Jones
                           Title: Vice President & Treasurer
                       
                       UNITED WASTE SYSTEMS, INC.
                       
                       
                       By:  /s/ RONALD H. JONES
                           -------------------------------------
                           Name: Ronald H. Jones
                           Title: Vice President & Treasurer


                       THE BANKS AND AGENTS:

                       MORGAN GUARANTY TRUST COMPANY OF NEW YORK, individually 
                       and as Administrative Agent

                       By: /s/ CHRISTOPHER C. KUNHARDT
                           -------------------------------------
                           Name: Christopher C. Kunhardt
                           Title: Vice President

                       BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION

                       By: /s/ ROBERT P. ROSPIERSKI
                           -------------------------------------
                           Name: Robert P. Rospierski
                           Title: Managing Director

<PAGE>

                       ABN AMRO BANK, N.A. 

                       
                       By: /s/ LAURIE C. TUZO
                           -------------------------------------
                           Name: Laurie C. Tuzo
                           Title: Group Vice President

                       
                       By: /s/ ERIC R. HOLLINGSWORTH
                           -------------------------------------
                           Name: Eric R. Hollingsworth
                           Title: Assistant Vice President
                            
                       BANCA COMMERCIALE ITALIANA, LOS ANGELES FOREIGN BRANCH
                            
                            
                       By: /s/ RICHARD E. IWANICKI
                           -------------------------------------
                           Name: Richard E. Iwanicki
                           Title: Vice President
                            
                       By: /s/ M. HANNA
                           -------------------------------------
                           Name: M. Hanna
                           Title: Assistant Vice President

                       BANK AUSTRIA AKTIENGESELLSCHAFT
                            
                       By: /s/ R. TENHAVE
                           -------------------------------------
                           Name: R. Tenhave
                           Title: SVP
                                 
                       By: /s/ CHRISTINE A. PENARD
                           -------------------------------------
                           Name: Christine A. Penard
                           Title: VP
                       
                       BANKBOSTON, N.A.

                       
                       By: /s/ ARTHUR J. OBERHEIM
                           -------------------------------------
                           Name: Arthur J. Oberheim
                           Title: Vice President

<PAGE>
                            
                       BANK OF MONTREAL
                       
                       
                       By: /s/ LEON H. SINCLAIR
                           -------------------------------------
                           Name: Leon H. Sinclair
                           Title: Director
                       
                       BANQUE NATIONALE DE PARIS
                       

                       By: /s/ MIKE SHRYOCK
                           -------------------------------------
                           Name: Mike Shryock
                           Title: Vice President
                       
                       WELLS FARGO BANK (TEXAS),
                       NATIONAL ASSOCIATION
                       
                       
                       By: /s/ NIPUL V. PATEL
                           -------------------------------------
                           Name: Nipul V. Patel
                           Title: Assistant Vice President
                       
                       THE BANK OF NOVA SCOTIA
                       
     
                       By: /s/ F.C.H. ASHBY
                           -------------------------------------
                           Name: F.C.H. Ashby
                           Title: Senior Manager - Loan 
                                  Operations
                       
                       THE BANK OF TOKYO-MITSUBISHI, LTD.
                       
                       
                       By: 
                           -------------------------------------
                           Name:
                           Title:
                       
                       BANK ONE, TEXAS, N.A.
                       
                       
                       By: /s/ SCOTT RHEA
                           -------------------------------------
                           Name: Scott Rhea
                           Title: Vice President

<PAGE>

                       BANQUE PARIBAS
                       
                       
                       By: /s/ SCOTT CLINGAN
                           -------------------------------------
                           Name: Scott Clingan
                           Title: VP
                       
                       
                       By: /s/ LARRY ROBINSON
                           -------------------------------------
                           Name: Larry Robinson
                           Title: Vice President
                       
                       COMERICA BANK
                       
     
                       By: /s/ REGINALD M. GOLDSMITH, III
                           -------------------------------------
                           Name: Reginald M. Goldsmith, III
                           Title: Vice President
                       
                       CIBC INC.
                       
                       
                       By: 
                           -------------------------------------
                           Name:
                           Title:
                       
                       CREDIT LYONNAIS NEW YORK BRANCH
                       
                       
                       By: /s/ ROBERT IVOSEVICH
                           -------------------------------------
                           Name: Robert Ivosevich
                           Title: Senior Vice President
                       
                       THE DAI-ICHI KANGYO BANK, LTD.
                       
                       
                       By: /s/ MASAAKI ISHIKURA
                           -------------------------------------
                           Name: Masaaki Ishikura
                           Title: Vice President

<PAGE>

                       DEUTSCHE BANK AG, NEW YORK AND/OR CAYMAN ISLANDS BRANCHES
                       
                       
                       By: /s/ JEAN M. HANNIGAN
                           -------------------------------------------
                           Name: Jean M. Hannigan
                           Title: Vice President
                       
                       
                       By: /s/ SUSAN L. PEARSON
                           -------------------------------------------
                           Name: Susan L. Pearson
                           Title: Director
                       
                       DG BANK DEUTSCHE GENOSSENSCHAFTSBANK,
                       NEW YORK BRANCH
                       
                       
                       By: /s/ MARK K. CONNELLY / /s/ TREVOR H. BROOKS
                           -------------------------------------------
                           Name: Mark K. Connelly / Trevor H. Brooks
                           Title: Vice President / Assistant Vice
                                  President
                       
                       THE FIRST NATIONAL BANK OF MARYLAND
                            
                            
                       By: /s/ ANDREW W. FISH
                           -------------------------------------------
                           Name: Andrew W. Fish
                           Title: Vice President
                            
                       FLEET BANK, N.A.
                            
                            
                       By: /s/ CHRISTOPHER MAYROSE
                           -------------------------------------------
                           Name: Christopher Mayrose
                           Title: Vice President
                            
                       THE FUJI BANK, LIMITED, HOUSTON AGENCY
                            
                            
                       By: /s/ NATE ELLIS
                           -------------------------------------------
                           Name: Nate Ellis
                           Title: VP & Manager

<PAGE>

                       HIBERNIA NATIONAL BANK
                            
                            
                       By: 
                           -------------------------------------
                           Name:
                           Title:
                            
                       THE INDUSTRIAL BANK OF JAPAN
                         TRUST COMPANY
                       
                       
                       By: /s/ KENSAKU IWATA
                           -------------------------------------
                           Name: Kensaku Iwata
                           Title: Senior Vice President
                            
                       KBC BANK N.V.
                       
                       
                       By: /s/ ROBERT SNAUFFER
                           -------------------------------------
                           Name: Robert Snauffer
                           Title: Vice President
                       
                       
                       By: /s/ MICHAEL V. CURRAN
                           -------------------------------------
                           Name: Michael V. Curran
                           Title: Vice President
                       
                       THE MITSUBISHI TRUST AND BANKING CORPORATION
                       
                       
                       By: 
                           -------------------------------------
                           Name:
                           Title:
     
                       PNC BANK, NATIONAL ASSOCIATION
                       
                       
                       By: /s/ ERIC C. JOHNSON
                           -------------------------------------
                           Name: Eric C. Johnson
                           Title: Senior Vice President

<PAGE>

                       ROYAL BANK OF CANADA
                       
                       
                       By: /s/ GORDAN MACARTHUR
                           -------------------------------------
                           Name: Gordan MacArthur
                           Title: Manager
                       
                       THE SANWA BANK LIMITED
                       
                       
                       By: /s/ JOHN T. FEENEY
                           -------------------------------------
                           Name: John T. Feeney
                           Title: Vice President
                       
                       THE SUMITOMO BANK, LIMITED
                       
                       
                       By: /s/ WILLIAM R. MCKOWN, III
                           -------------------------------------
                           Name: William R. McKown, III
                           Title: Vice President & Manager
                       
                       SUNTRUST BANK, ATLANTA
                       
                       
                       By: /s/ JOHN A. FIELDS, JR.
                           -------------------------------------
                           Name: John A. Fields, Jr.
                           Title: Vice President
                       
                       
                       By: /s/ STEVEN J. NEWBY
                           -------------------------------------
                           Name: Steven J. Newby
                           Title: Corporate Banking Officer
                       
                       CHASE BANK OF TEXAS, N.A.
                       
                       
                       By: /s/ MICHAEL ONDRUCH
                           -------------------------------------
                           Name: Michael Ondruch
                           Title: V.P.

<PAGE>

                       TORONTO DOMINION (TEXAS), INC.
                       
                       
                       By: /s/ DEBBIE A. GREENE
                           --------------------------------------
                            Name: Debbie A. Greene
                            Title: Vice President
                       
                       WACHOVIA BANK, N.A.
                       
                       
                       By: /s/ STEVEN M. TAKEI
                           --------------------------------------
                           Name: Steven M. Takei
                           Title: Senior Vice President
                       
                       WESTDEUTSCHE LANDESBANK GIROZENTRALE, NEW YORK BRANCH
                            
                            
                            
                       By: /s/ FELICIA LA FORGIA / /s/ THOMAS LEE
                           --------------------------------------
                           Name: Felicia La Forgia / Thomas Lee
                           Title: Vice President / Associate
                            
                       THE BANK OF NEW YORK
                       
                       
                       By: /s/ HELEN L. SARRO
                           --------------------------------------
                           Name: Helen L. Sarro
                           Title: Assistant Vice President
                       
                       ABU DHABI INTERNATIONAL BANK INC. 
                       
                       
                       By: /s/ DAVID J. YOUNG
                           --------------------------------------
                           Name: David J. Young
                           Title: Assistant Vice President
                       
                       
                       By: /s/ NAGY S. KOLTA
                           --------------------------------------
                           Name: Nagy S. Kolta
                           Title: Senior Vice President

<PAGE>

                       SUMITOMO BANK OF CALIFORNIA
                       
                       
                       By: 
                           -------------------------------------
                           Name:
                           Title:
                       
                       THE SUMITOMO TRUST & BANKING CO.,
                       LIMITED, LOS ANGELES AGENCY
                       
                       
                       By: /s/ ELEANOR CHAN
                           -------------------------------------
                           Name: Eleanor Chan
                           Title: Manager & Vice President


<PAGE>

- -------------------------------------------------------------------------------

                                   LOAN AGREEMENT

                             DATED AS OF JULY 16, 1998

                                    by and among

                               WASTE MANAGEMENT, INC.
                          (f/k/a USA Waste Services, Inc.)

                                  (the "Borrower")


                                        and

                                   THE GUARANTOR

                                        and

               BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION
                                      ("BOA")
                        CHASE BANK OF TEXAS, N.A. ("CHASE")
                   DEUTSCHE BANK AG, NEW YORK BRANCH ("DEUTSCHE")
                     MORGAN GUARANTY TRUST COMPANY OF NEW YORK
                                      ("MGT")

                 AND THE OTHER FINANCIAL INSTITUTIONS WHICH BECOME
                             A PARTY TO THIS AGREEMENT

                            (Collectively, the "Banks")

                                        and

                            MGT AS ADMINISTRATIVE AGENT
                            (the "Administrative Agent")

                                        and

                          DEUTSCHE AS DOCUMENTATION AGENT
                            (the "Documentation Agent")

                                        and

              BANCAMERICA ROBERTSON STEPHENS AND CHASE SECURITIES INC.
                      AS SYNDICATION AGENTS AND BOOK MANAGERS
                             (the "Syndication Agents")


- -------------------------------------------------------------------------------

<PAGE>

                                 TABLE OF CONTENTS
<TABLE>
<S>                                                                                             <C>
Section 1.  DEFINITIONS AND RULES OF INTERPRETATION. . . . . . . . . . . . . . . . . . . . . . .  1
    Section 1.1.  DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
    Section 1.2.  RULES OF INTERPRETATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Section 2.  THE SYNDICATED LOAN FACILITIES.. . . . . . . . . . . . . . . . . . . . . . . . . . . 17
    Section 2.1.  COMMITMENT TO LEND.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
    Section 2.2.  FACILITY FEE; UTILIZATION FEE. . . . . . . . . . . . . . . . . . . . . . . . . 17
    Section 2.3.  REDUCTION OF TOTAL COMMITMENT. . . . . . . . . . . . . . . . . . . . . . . . . 18
    Section 2.4.  THE SYNDICATED NOTES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
    Section 2.5.  INTEREST ON SYNDICATED LOANS.. . . . . . . . . . . . . . . . . . . . . . . . . 19
    Section 2.6.  REQUESTS FOR SYNDICATED LOANS. . . . . . . . . . . . . . . . . . . . . . . . . 19
    Section 2.7.  ELECTION OF EURODOLLAR RATE; NOTICE OF ELECTION; INTEREST PERIODS;
     MINIMUM AMOUNTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
    Section 2.8.  FUNDS FOR SYNDICATED LOANS.. . . . . . . . . . . . . . . . . . . . . . . . . . 21
    Section 2.9.  MATURITY OF THE REVOLVING CREDIT LOANS AND REIMBURSEMENT OBLIGATIONS.. . . . . 21
    Section 2.10.  REQUEST FOR EXTENSION OF REVOLVING CREDIT MATURITY DATE.. . . . . . . . . . . 20
    Section 2.11.   PREPAYMENTS OR REPAYMENTS OF REVOLVING CREDIT LOANS. . . . . . . . . . . . . 22
    Section 2.12.  SWING LINE LOANS; SETTLEMENTS.. . . . . . . . . . . . . . . . . . . . . . . . 23
Section 3.  LETTERS OF CREDIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
    Section 3.1.  LETTER OF CREDIT COMMITMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . 24
    Section 3.2.  REIMBURSEMENT OBLIGATION OF THE BORROWER.. . . . . . . . . . . . . . . . . . . 25
    Section 3.3.  OBLIGATIONS ABSOLUTE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
    Section 3.4.  RELIANCE BY THE ISSUING BANKS. . . . . . . . . . . . . . . . . . . . . . . . . 26
    Section 3.5.  NOTICE REGARDING LETTERS OF CREDIT.. . . . . . . . . . . . . . . . . . . . . . 26
    Section 3.6.  LETTER OF CREDIT FEE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Section 4.  COMPETITIVE BID LOANS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
    Section 4.1.  THE COMPETITIVE BID OPTION.. . . . . . . . . . . . . . . . . . . . . . . . . . 27
    Section 4.2.  COMPETITIVE BID LOAN ACCOUNTS: COMPETITIVE BID NOTES.. . . . . . . . . . . . . 27
    Section 4.3.  COMPETITIVE BID QUOTE REQUEST; INVITATION FOR COMPETITIVE BID QUOTES.. . . . . 28
    Section 4.4.  ALTERNATIVE MANNER OF PROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . 29
    Section 4.5.  SUBMISSION AND CONTENTS OF COMPETITIVE BID QUOTES. . . . . . . . . . . . . . . 29
    Section 4.6.  NOTICE TO BORROWER.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
    Section 4.7.  ACCEPTANCE AND NOTICE BY BORROWER AND ADMINISTRATIVE AGENT.. . . . . . . . . . 31
    Section 4.8.  ALLOCATION BY ADMINISTRATIVE AGENT.. . . . . . . . . . . . . . . . . . . . . . 31
    Section 4.9.  FUNDING OF COMPETITIVE BID LOANS.. . . . . . . . . . . . . . . . . . . . . . . 31
    Section 4.10.  FUNDING LOSSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
    Section 4.11.  REPAYMENT OF COMPETITIVE BID LOANS; INTEREST. . . . . . . . . . . . . . . . . 32
Section 5.  THE TERM LOAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
    Section 5.1.  CONVERSION OF REVOLVING CREDIT LOANS; THE TERM LOAN. . . . . . . . . . . . . .341
    Section 5.2.  THE TERM NOTES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
    Section 5.3.  REPAYMENTS OF THE TERM LOAN. . . . . . . . . . . . . . . . . . . . . . . . . .352
    Section 5.4.  OPTIONAL PREPAYMENT OF TERM LOAN.. . . . . . . . . . . . . . . . . . . . . . .362
    Section 5.5.  INTEREST ON TERM LOAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

                                       i
<PAGE>

         Section 5.5.1.  NOTIFICATION BY BORROWER. . . . . . . . . . . . . . . . . . . . . . . . 32
         Section 5.5.2.  AMOUNTS, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Section 6.  PROVISIONS RELATING TO ALL LOANS AND LETTERS OF CREDIT.. . . . . . . . . . . . . . . 32
    Section 6.1.  PAYMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
    Section 6.2.  COMPUTATIONS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
    Section 6.3.  ILLEGALITY; INABILITY TO DETERMINE EURODOLLAR RATE.. . . . . . . . . . . . . . 36
    Section 6.4.  ADDITIONAL COSTS, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
    Section 6.6.  CAPITAL ADEQUACY.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
    Section 6.7.  CERTIFICATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
    Section 6.8.  EURODOLLAR AND COMPETITIVE BID INDEMNITY.. . . . . . . . . . . . . . . . . . . 38
    Section 6.9.  INTEREST ON OVERDUE AMOUNTS. . . . . . . . . . . . . . . . . . . . . . . . . . 38
    Section 6.10.  INTEREST LIMITATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
    Section 6.11.  REASONABLE EFFORTS TO MITIGATE. . . . . . . . . . . . . . . . . . . . . . . . 39
    Section 6.12.  REPLACEMENT OF BANKS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
    Section 6.13.  ADVANCES BY ADMINISTRATIVE AGENT. . . . . . . . . . . . . . . . . . . . . . . 40
Section 7.  REPRESENTATIONS AND WARRANTIES.. . . . . . . . . . . . . . . . . . . . . . . . . . . 40
    Section 7.1.  CORPORATE AUTHORITY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
    Section 7.2.  GOVERNMENTAL APPROVALS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
    Section 7.3.  TITLE TO PROPERTIES; LEASES. . . . . . . . . . . . . . . . . . . . . . . . . . 41
    Section 7.4.  FINANCIAL STATEMENTS; SOLVENCY.. . . . . . . . . . . . . . . . . . . . . . . . 42
    Section 7.5.  NO MATERIAL CHANGES, ETC.. . . . . . . . . . . . . . . . . . . . . . . . . . . 42
    Section 7.6.  FRANCHISES, PATENTS, COPYRIGHTS, ETC.. . . . . . . . . . . . . . . . . . . . . 43
    Section 7.7.  LITIGATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
    Section 7.8.  NO MATERIALLY ADVERSE CONTRACTS, ETC.. . . . . . . . . . . . . . . . . . . . . 43
    Section 7.9.  COMPLIANCE WITH OTHER INSTRUMENTS, LAWS, ETC.. . . . . . . . . . . . . . . . . 43
    Section 7.10.  TAX STATUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
    Section 7.11.  NO EVENT OF DEFAULT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
    Section 7.12.  HOLDING COMPANY AND INVESTMENT COMPANY ACTS.. . . . . . . . . . . . . . . . . 44
    Section 7.13.  ABSENCE OF FINANCING STATEMENTS, ETC. . . . . . . . . . . . . . . . . . . . . 44
    Section 7.14.  EMPLOYEE BENEFIT PLANS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
         Section 7.14.1.  IN GENERAL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
         Section 7.14.2.  TERMINABILITY OF WELFARE PLANS.. . . . . . . . . . . . . . . . . . . . 45
         Section 7.14.3.  GUARANTEED PENSION PLANS.. . . . . . . . . . . . . . . . . . . . . . . 45
         Section 7.14.4.  MULTIEMPLOYER PLANS. . . . . . . . . . . . . . . . . . . . . . . . . . 45
    Section 7.15.  ENVIRONMENTAL COMPLIANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . 46
    Section 7.16.  TRUE COPIES OF CHARTER AND OTHER DOCUMENTS. . . . . . . . . . . . . . . . . . 47
    Section 7.17.  DISCLOSURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
    Section 7.18.  PERMITS AND GOVERNMENTAL AUTHORITY. . . . . . . . . . . . . . . . . . . . . . 47
    Section 7.19.  YEAR 2000 COMPLIANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
    Section 7.18.  USE OF PROCEEDS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Section 8.  AFFIRMATIVE COVENANTS OF THE BORROWER. . . . . . . . . . . . . . . . . . . . . . . . 48
    Section 8.1.  PUNCTUAL PAYMENT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
    Section 8.2.  MAINTENANCE OF U.S. OFFICE.. . . . . . . . . . . . . . . . . . . . . . . . . . 48

                                       ii
<PAGE>

    Section 8.3.  RECORDS AND ACCOUNTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
    Section 8.4.  FINANCIAL STATEMENTS, CERTIFICATES AND INFORMATION.. . . . . . . . . . . . . . 49
    Section 8.5.  CORPORATE EXISTENCE AND CONDUCT OF BUSINESS. . . . . . . . . . . . . . . . . . 50
    Section 8.6.  MAINTENANCE OF PROPERTIES. . . . . . . . . . . . . . . . . . . . . . . . . . . 50
    Section 8.7.  INSURANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
    Section 8.8.  TAXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
    Section 8.9.  INSPECTION OF PROPERTIES, BOOKS AND CONTRACTS. . . . . . . . . . . . . . . . . 51
    Section 8.10.  COMPLIANCE WITH LAWS, CONTRACTS, LICENSES AND PERMITS; MAINTENANCE OF
     MATERIAL LICENSES AND PERMITS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
    Section 8.11.  ENVIRONMENTAL INDEMNIFICATION.. . . . . . . . . . . . . . . . . . . . . . . . 52
    Section 8.12.  FURTHER ASSURANCES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
    Section 8.13.  NOTICE OF POTENTIAL CLAIMS OR LITIGATION. . . . . . . . . . . . . . . . . . . 52
    Section 8.14.  NOTICE OF CERTAIN EVENTS CONCERNING INSURANCE AND ENVIRONMENTAL CLAIMS. . . . 52
    Section 8.15.  NOTICE OF DEFAULT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
    Section 8.16.  USE OF PROCEEDS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
    Section 8.17.  CERTAIN TRANSACTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Section 9.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER.. . . . . . . . . . . . . . . . . . . . . 54
    Section 9.1.  RESTRICTIONS ON INDEBTEDNESS.. . . . . . . . . . . . . . . . . . . . . . . . . 54
    Section 9.2.  RESTRICTIONS ON LIENS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
    Section 9.3.  RESTRICTIONS ON INVESTMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . 57
    Section 9.4.  MERGERS, CONSOLIDATIONS, SALES.. . . . . . . . . . . . . . . . . . . . . . . . 57
    Section 9.5.  RESTRICTED DISTRIBUTIONS AND REDEMPTIONS.. . . . . . . . . . . . . . . . . . . 58
    Section 9.6.  EMPLOYEE BENEFIT PLANS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Section 10.  FINANCIAL COVENANTS OF THE BORROWER.. . . . . . . . . . . . . . . . . . . . . . . . 59
    Section 10.1.  INTEREST COVERAGE RATIO.. . . . . . . . . . . . . . . . . . . . . . . . . . . 60
    Section 10.2.  TOTAL DEBT TO EBITDA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Section 11.  CONDITIONS PRECEDENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
    Section 11.1.  CONDITIONS TO EFFECTIVENESS.. . . . . . . . . . . . . . . . . . . . . . . . . 60
         Section 11.1.1.  CORPORATE ACTION.. . . . . . . . . . . . . . . . . . . . . . . . . . . 60
         Section 11.1.2.  LOAN DOCUMENTS, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . 60
         Section 11.1.3.  CERTIFIED COPIES OF CHARTER DOCUMENTS. . . . . . . . . . . . . . . . . 60
         Section 11.1.4.  INCUMBENCY CERTIFICATE.. . . . . . . . . . . . . . . . . . . . . . . . 61
         Section 11.1.5.  CERTIFICATES OF INSURANCE. . . . . . . . . . . . . . . . . . . . . . . 61
         Section 11.1.6.  OPINIONS OF COUNSEL. . . . . . . . . . . . . . . . . . . . . . . . . . 61
         Section 11.1.7.  EXISTING DEBT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
         Section 11.1.8.  SATISFACTORY FINANCIAL CONDITION.. . . . . . . . . . . . . . . . . . . 61
         Section 11.1.9.  USA WASTE CREDIT AGREEMENT . . . . . . . . . . . . . . . . . . . . . . 59
         Section 11.1.10.  WMI MERGER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
         Section 11.1.11.  CERTAIN APPROVALS.. . . . . . . . . . . . . . . . . . . . . . . . . . 62
         Section 11.1.12.  LIEN SEARCH RESULTS.. . . . . . . . . . . . . . . . . . . . . . . . . 62
         Section 11.1.13.  PAYMENT OF CLOSING FEES.. . . . . . . . . . . . . . . . . . . . . . . 62
    Section 11.2.  NOTICE OF EFFECTIVE DATE. . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Section 12.  CONDITIONS TO ALL LOANS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
    Section 12.1.  REPRESENTATIONS TRUE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

                                       iii
<PAGE>

    Section 12.2.  PERFORMANCE; NO EVENT OF DEFAULT. . . . . . . . . . . . . . . . . . . . . . . 63
    Section 12.3.  NO LEGAL IMPEDIMENT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
    Section 12.4.  GOVERNMENTAL REGULATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . 63
    Section 12.5.  PROCEEDINGS AND DOCUMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . 63
Section 13.  EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENT. . . . . . . . . . . . . 61
    Section 13.1.  EVENTS OF DEFAULT AND ACCELERATION. . . . . . . . . . . . . . . . . . . . . . 61
    Section 13.2.  TERMINATION OF COMMITMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . 66
    Section 13.3.  REMEDIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Section 14.  SETOFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Section 15.  EXPENSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Section 16.  THE AGENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
    Section 16.1.  APPOINTMENT, POWERS AND IMMUNITIES. . . . . . . . . . . . . . . . . . . . . . 67
    Section 16.2.  ACTIONS BY ADMINISTRATIVE AGENT.. . . . . . . . . . . . . . . . . . . . . . . 68
    Section 16.3.  INDEMNIFICATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
    Section 16.4.  REIMBURSEMENT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
    Section 16.5.  DOCUMENTS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
    Section 16.6.  NON-RELIANCE ON ADMINISTRATIVE AGENT AND OTHER BANKS. . . . . . . . . . . . . 69
    Section 16.7.  RESIGNATION OF ADMINISTRATIVE AGENT.. . . . . . . . . . . . . . . . . . . . . 70
    Section 16.8.  ACTION BY THE BANKS, CONSENTS, AMENDMENTS, WAIVERS, ETC.. . . . . . . . . . . 70
Section 17.  INDEMNIFICATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Section 18.  WITHHOLDING TAXES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Section 19.  TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION.. . . . . . . . . . . . . . . . . . . 70
    Section 19.1.  SHARING OF INFORMATION WITH SECTION 20 SUBSIDIARY.. . . . . . . . . . . . . . 70
    Section 19.2.  CONFIDENTIALITY.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
    Section 19.3.  PRIOR NOTIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
    Section 19.4.  OTHER.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Section 20.  SURVIVAL OF COVENANTS, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Section 21.  ASSIGNMENT AND PARTICIPATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Section 22.  PARTIES IN INTEREST.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Section 23.  NOTICES, ETC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Section 24.  MISCELLANEOUS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Section 25.  CONSENTS, ETC.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Section 26.  WAIVER OF JURY TRIAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Section 27.  GOVERNING LAW; SUBMISSION TO JURISDICTION.. . . . . . . . . . . . . . . . . . . . . 78
Section 28.  SEVERABILITY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Section 29.  GUARANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
    Section 29.1.  GUARANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
    Section 29.2.  GUARANTY ABSOLUTE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
    Section 29.3.  EFFECTIVENESS; ENFORCEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . 79
    Section 29.4.  WAIVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
    Section 29.5.  EXPENSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
    Section 29.6.  CONCERNING JOINT AND SEVERAL LIABILITY OF THE GUARANTOR.. . . . . . . . . . . 80
    Section 29.7.  WAIVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
    Section 29.8.  SUBROGATION; SUBORDINATION. . . . . . . . . . . . . . . . . . . . . . . . . . 79

                                       iv
<PAGE>

Section 30.  PARI PASSU TREATMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Section 31.  FINAL AGREEMENT.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80



                                       EXHIBITS

       Exhibit A       Form of Syndicated Note
       Exhibit B       Form of Swing Line Note
       Exhibit C       Form of Competitive Bid Note
       Exhibit D       Form of Syndicated Loan Request
       Exhibit E       Form of Letter of Credit Request
       Exhibit F       Form of Compliance Certificate
       Exhibit G       Form of Assignment and Acceptance
       Exhibit H       Form of Competitive Bid Quote Request
       Exhibit I       Form of Invitation for Competitive Bid Quotes
       Exhibit J       Form of Competitive Bid Quote
       Exhibit K       Form of Notice of Acceptance/Rejection of
                            Competitive Bid Quote(s)
       Exhibit L       Form of Term Note

                                    SCHEDULES

       Schedule 1      Banks; Commitment Percentages;
                            Banks' Addresses for Notices
       Schedule 3.1(a) Existing Letters of Credit
       Schedule 7.7    Litigation
       Schedule 7.15   Environmental Compliance
       Schedule 9.1(e) Old WMI Indebtedness
       Schedule 9.2(a) Existing Liens
       Schedule 9.3    WMInternational Investments
</TABLE>

                                       v
<PAGE>

                                    LOAN AGREEMENT

     This LOAN AGREEMENT is made as of the 16th day of July, l998, by and
among WASTE MANAGEMENT, INC. (f/k/a USA Waste Services, Inc.), a Delaware
corporation having its chief executive office at 1001 Fannin Street, Suite
4000, Houston, Texas 77002 (the "Borrower"), the Guarantor, and BANK OF
AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION, a national banking
association having its principal place of business at 231 South LaSalle
Street Chicago, IL 60697 ("BOA"), CHASE BANK OF TEXAS, N.A., a national
banking association having its principal place of business at 707 Travis
Street, Houston, TX 77002 ("Chase"), DEUTSCHE BANK AG, NEW YORK BRANCH, the
duly licensed New York branch of a German corporation having its principal
place of business at 31 West 52nd Street, New York, NY 10019 ("Deutsche"),
MORGAN GUARANTY TRUST COMPANY OF NEW YORK, a New York state banking
association having its principal place of business at 60 Wall Street, New
York, New York 10260 ("MGT"), and each of the other financial institutions
party hereto (collectively, the "Banks"), and MGT as administrative agent
(the "Administrative Agent"), BancAmerica Robertson Stephens and Chase
Securities Inc. as syndication agents and book managers (the "Syndication
Agents"), and Deutsche as documentation agent (the "Documentation Agent", and
together with the Administrative Agent and the Syndication Agents, the
"Agents").

     SECTION 1.  DEFINITIONS AND RULES OF INTERPRETATION.

     SECTION 1.1.  DEFINITIONS.  The following terms shall have the meanings
set forth in this Section 1 or elsewhere in the provisions of this Agreement
referred to below:

     ABSOLUTE COMPETITIVE BID LOAN(S).  See Section 4.3(a).

     ACCOUNTANTS.  See Section 8.4(a).

     ADMINISTRATIVE AGENT.  See Preamble.

     AFFECTED BANK.  See Section 6.11.

     AGENTS.  See Preamble.

     AGGREGATE REVOLVING COMMITMENTS.  The Total Commitment hereunder PLUS
the "Total Commitment" under the USA Waste Credit Agreement, as in effect
from time to time.

     AGREEMENT.  This Loan Agreement, including the Schedules and Exhibits
hereto, as from time to time amended and supplemented in accordance with the
terms hereof.

     APPLICABLE CANADIAN PENSION LEGISLATION.   At any time, any pension or
retirement benefits legislation (be it federal, provincial, territorial, or
otherwise) then applicable to any of

<PAGE>

the Canadian Subsidiaries, including the Pension Benefits Act (Ontario), the
Income Tax Act (Canada), and all regulations made thereunder.

     APPLICABLE EURODOLLAR RATE.  The applicable rate per annum of interest
on the Eurodollar Loans shall be as set forth in the Pricing Table.

     APPLICABLE FACILITY RATE.  The applicable rate per annum with respect to
the Facility Fee shall be as set forth in the Pricing Table.

     APPLICABLE L/C RATE.  The applicable rate per annum on the Maximum
Drawing Amount shall be as set forth in the Pricing Table.

     APPLICABLE REQUIREMENTS.  See Section 8.10.

     APPLICABLE SWING LINE RATE.  The annual rate of interest agreed upon
from time to time by MGT and the Borrower with respect to Swing Line Loans.

     ASSIGNMENT AND ACCEPTANCE.  See Section 21.

     AVERAGE QUARTERLY UTILIZATION AMOUNT.  The average outstanding Revolving
Credit Loans PLUS the average Maximum Drawing Amount and unpaid Reimbursement
Obligations of the Letters of Credit in any calendar quarter.

     BALANCE SHEET DATE.  December 31, 1997.

     BANKS.  See Preamble.

     BASE RATE.  The higher of (a) the annual rate of interest announced from
time to time by the Administrative Agent at its Head Office as its "prime
rate" (it being understood that such rate is a reference rate and not
necessarily the lowest rate of interest charged by the Administrative Agent),
or (b) one percent (1%) above the Overnight Federal Funds Effective Rate.

     BASE RATE LOANS.  Syndicated Loans bearing interest calculated by
reference to the Base Rate.

     BOA.  See Preamble.

     BOA CREDIT AGREEMENT.  That certain Credit Agreement dated as of January
22, 1998, among the Borrower, BOA, the other banks party thereto and BOA as
agent for the banks.

     BORROWER.  See Preamble.

     BUSINESS DAY.  Any day, other than a Saturday, Sunday or any day on
which banking institutions in New York, New York are authorized by law to
close, and, when used in connection with a Eurodollar Loan, a Eurodollar
Business Day.

                                       -2-
<PAGE>

     CAPITALIZED LEASES.  Leases under which the Borrower or any of its
Subsidiaries is the lessee or obligor, the discounted future rental payment
obligations under which are required to be capitalized on the balance sheet
of the lessee or obligor in accordance with GAAP.

     CERCLA.  See Section 7.15(a).

     CERTIFIED OR CERTIFIED.  With respect to the financial statements of any
Person, such statements as audited by a firm of independent auditors, whose
report expresses the opinion, without qualification, that such financial
statements present fairly the financial position of such Person.

     CFO or the CAO.  See Section 8.4(b).

     CHASE.  See Preamble.

     CODE.  The Internal Revenue Code of 1986, as amended and in effect from
time to time.

     COMMITMENT.  With respect to each Bank, such Bank's commitment to make
Syndicated Loans to, and to participate in the issuance, extension and
renewal of Letters of Credit for the account of, the Borrower, determined by
multiplying such Bank's Commitment Percentage by the Total Commitment.

     COMMITMENT PERCENTAGE.  With respect to each Bank, the percentage
initially set forth next to such Bank's name on SCHEDULE 1 hereto, as the
same may be adjusted in accordance with Section 2.3 and Section 21.

     COMPETITIVE BID LOAN(S).  A borrowing hereunder consisting of one or
more loans made by any of the participating Banks whose offer to make a
Competitive Bid Loan as part of such borrowing has been accepted by the
Borrower under the auction bidding procedure described in Section 4 hereof.

     COMPETITIVE BID LOAN ACCOUNTS.  See Section 4.2(a).

     COMPETITIVE BID MARGIN.  See Section 4.5(b)(iv).

     COMPETITIVE BID NOTES.  See Section 4.2(b).

     COMPETITIVE BID QUOTE.  An offer by a Bank to make a Competitive Bid
Loan in accordance with Section 4.5 hereof.

     COMPETITIVE BID QUOTE REQUEST.  See Section 4.3.

     COMPETITIVE BID RATE.  See Section 4.5(b)(v).

     COMPLIANCE CERTIFICATE.  See Section 8.4(c).

                                       -3-
<PAGE>

     CONSOLIDATED or CONSOLIDATED.  With reference to any term defined
herein, shall mean that term as applied to the accounts of the Borrower and
its Subsidiaries consolidated in accordance with GAAP.

     CONSOLIDATED EARNINGS BEFORE INTEREST AND TAXES, or EBIT.  For any
period, the Consolidated Net Income (or Deficit) of the Borrower and its
Subsidiaries on a consolidated basis PLUS the sum of (1) interest expense,
(2) income taxes (other than income taxes that are a net credit except the
WMI Merger pooling costs and merger-related expenses in item (3) below), (3)
up to $1,700,000,000 in pooling costs and merger-related expenses actually
incurred with respect to the WMI Merger, taken as a special charge in the
quarter ending September 30, l998, and (4) up to $200,000,000 in after tax
charges actually incurred with respect to Old WMI shareholder litigation and
Securities and Exchange Commission investigations which were pending or
initiated prior to the Effective Date, taken as a special charge, to the
extent that each of items (1) through (4) was deducted, without duplication,
in determining Consolidated Net Income (or Deficit) in the relevant period.

     CONSOLIDATED EARNINGS BEFORE INTEREST, TAXES, DEPRECIATION AND
AMORTIZATION or EBITDA.  For any period, EBIT PLUS (a) depreciation expense,
and (b) amortization expense to the extent the same would be included in the
calculation of Consolidated Net Income for such period, determined in
accordance with GAAP.

     CONSOLIDATED NET INCOME (or DEFICIT).  The consolidated net income (or
deficit) of the Borrower and its Subsidiaries on a consolidated basis, after
deduction of all expenses, taxes, and other proper charges, determined in
accordance with GAAP.

     CONSOLIDATED NET WORTH.  The sum of the par value of the capital stock
(excluding treasury stock), capital in excess of par or stated value of
shares of capital stock, retained earnings (minus accumulated deficit) and
any other account which, in accordance with GAAP, constitute stockholders'
equity, of the Borrower and its Subsidiaries determined on a consolidated
basis, excluding any effect of foreign currency transaction computed pursuant
to Financial Accounting Standards Board Statement No. 52, as amended,
supplemented or modified from time to time, or otherwise in accordance with
GAAP.

     CONSOLIDATED TANGIBLE ASSETS.  Consolidated Total Assets less the sum of:

          (a)  the total book value of all assets of the Borrower and its
     Subsidiaries properly classified as intangible assets under generally
     accepted accounting principles, including such items as goodwill, the
     purchase price of acquired assets in excess of the fair market value
     thereof, trademarks, trade names, service marks, customer lists, brand
     names, copyrights, patents and licenses, and rights with respect to the
     foregoing; PLUS

          (b)  all amounts representing any write-up in the book value of any
     assets of the Borrower or its Subsidiaries resulting from a revaluation
     thereof subsequent to the Balance Sheet Date.

                                       -4-
<PAGE>

     CONSOLIDATED TOTAL ASSETS.  All assets of the Borrower and its
Subsidiaries determined on a consolidated basis in accordance with GAAP.

     CONSOLIDATED TOTAL INTEREST EXPENSE.  For any period, the aggregate
amount of interest expense required by GAAP to be paid or accrued during such
period on all Indebtedness of the Borrower and its Subsidiaries outstanding
during all or any part of such period, including capitalized interest expense
for such period.

     DEFAULTING BANK.  See Section 6.11.

     DEFAULTS.  See Section 13.1.

     DEUTSCHE.  See Preamble.

     DISCLOSURE DOCUMENTS.  The Borrower's financial statements referred to
in Section 7.4 and filings made by the Borrower or Old WMI with the
Securities and Exchange Commission that were publicly available prior to the
Effective Date.

     DISPOSAL.  See "Release".

     DISTRIBUTION.  The declaration or payment of any dividend or other
return on equity on or in respect of any shares of any class of capital
stock, any partnership interests or any membership interests of any Person,
other than dividends or other such returns payable solely in shares of common
stock, partnership interests or membership units of such Person, as the case
may be; the purchase, redemption, or other retirement of any shares of any
class of capital stock, partnership interests or membership units of such
Person, directly or indirectly through a Subsidiary or otherwise; the return
of equity capital by any Person to its shareholders, partners or members as
such; or any other distribution on or in respect of any shares of any class
of capital stock, partnership interest or membership unit of such Person.

     DOLLARS or US$ or $ or U.S. DOLLARS.  Dollars in lawful currency of the
United States of America.

     DOME.  Dome Merger Subsidiary, Inc., a Delaware corporation and wholly
owned Subsidiary of Borrower.

     DRAWDOWN DATE.  The date on which any Loan is made or is to be made, or
any amount is paid by the Issuing Bank under a Letter of Credit.

     EBIT.  See definition of Consolidated Earnings Before Interest and Taxes.

     EBITDA.  See definition of Consolidated Earnings Before Interest, Taxes,
Depreciation and Amortization.

     EFFECTIVE DATE.  The date on which the conditions precedent set forth in
Section 11.1 hereof are satisfied.

                                       -5-
<PAGE>

     EMPLOYEE BENEFIT PLAN.  Any employee benefit plan within the meaning of
Section 3(3) of ERISA or Applicable Canadian Pension Legislation maintained
or contributed to by the Borrower, any of its Subsidiaries, or any ERISA
Affiliate, other than a Multiemployer Plan.

     ENVIRONMENTAL LAWS.  See Section 7.15(a).

     EPA.  See Section 7.15(b).

     ERISA.  The Employee Retirement Income Security Act of 1974, as amended
and in effect from time to time.

     ERISA AFFILIATE.  Any Person which is treated as a single employer with
the Borrower or any of its Subsidiaries under Section 414 of the Code.

     ERISA REPORTABLE EVENT.  A reportable event within the meaning of
Section 4043 of ERISA and the regulations promulgated thereunder with respect
to a Guaranteed Pension Plan  as to which the requirement of notice has not
been waived.

     EUROCURRENCY RESERVE RATE.  For any day with respect to a Eurodollar
Loan, the maximum rate (expressed as a decimal) at which any lender subject
thereto would be required to maintain reserves under Regulation D of the
Board of Governors of the Federal Reserve System (or any successor or similar
regulations relating to such reserve requirements) against "Eurocurrency
Liabilities" (as that term is used in Regulation D), if such liabilities were
outstanding.  The Eurocurrency Reserve Rate shall be adjusted automatically
on and as of the effective date of any change in the Eurocurrency Reserve
Rate.

     EURODOLLAR BUSINESS DAY.  Any day on which commercial banks are open for
international business (including dealings in Dollar deposits) in London or
such other eurodollar interbank market as may be selected by the
Administrative Agent in its sole discretion acting in good faith.

     EURODOLLAR INTEREST DETERMINATION DATE.  For any Interest Period, the
date two Eurodollar Business Days prior to the first day of such Interest
Period.

     EURODOLLAR LENDING OFFICE.  Initially, the office of each Bank set forth
in SCHEDULE 1 hereto; thereafter, upon notice to the Administrative Agent,
such other office of such Bank that shall be making or maintaining Eurodollar
Loans.

     EURODOLLAR LOANS.  Syndicated Loans bearing interest calculated by
reference to the Eurodollar Rate.

     EURODOLLAR RATE.  For any Interest Period with respect to a Eurodollar
Loan, the rate of interest equal to (i) the arithmetic average of the rates
per annum for each Reference Bank at which such Reference Bank's Eurodollar
Lending Office is offered Dollar deposits at approximately 10:00 a.m. (New
York time) two (2) Eurodollar Business Days prior to the beginning of such
Interest Period in the interbank eurodollar market where the eurodollar
operations of such Eurodollar Lending Office are customarily conducted, for
delivery on the first

                                       -6-
<PAGE>

day of such Interest Period for the number of days comprised therein and in
an amount comparable to the amount of the Eurodollar Rate Loan of such
Reference Bank to which such Interest Period applies, DIVIDED BY (ii) a
number equal to 1.00 minus the Eurocurrency Reserve Rate, if applicable
(rounded upwards to the nearest 1/16 of one percent).

     EVENTS OF DEFAULT.  See Section 13.1.

     FACILITY FEE.  See Section 2.2(a).

     GENERALLY ACCEPTED ACCOUNTING PRINCIPLES or GAAP.  (i) When used in
Section 10, whether directly or indirectly through reference to a capitalized
term used therein, means (A) principles that are consistent with the
principles promulgated or adopted by the Financial Accounting Standards Board
and its predecessors, in effect for the fiscal year ended on the Balance
Sheet Date, and (B) to the extent consistent with such principles, the
accounting practice of the Borrower reflected in its financial statements for
the year ended on the Balance Sheet Date, and (ii) when used in general,
other than as provided above, means principles that are (A) consistent with
the principles promulgated or adopted by the Financial Accounting Standards
Board and its predecessors, as in effect from time to time, and (B)
consistently applied with past financial statements of the Borrower adopting
the same principles, provided that in each case referred to in this
definition of "generally accepted accounting principles" a certified public
accountant would, insofar as the use of such accounting principles is
pertinent, be in a position to deliver an unqualified opinion (other than a
qualification regarding changes in generally accepted accounting principles)
as to financial statements in which such principles have been properly
applied.

     GUARANTEED OBLIGATIONS.  See Section 29.1.

     GUARANTEED PENSION PLAN.  Any employee pension benefit plan within the
meaning of Section 3(2) of ERISA maintained or contributed to by the
Borrower, its Subsidiaries or any ERISA Affiliate the benefits of which are
guaranteed on termination in full or in part by the PBGC pursuant to Title IV
of ERISA, other than a Multiemployer Plan.

     GUARANTOR.  Old WMI.

     HAZARDOUS SUBSTANCES.  See Section 7.15(b).

     HEAD OFFICE.  The Administrative Agent's head office located in New
York, New York, or at such other location as the Administrative Agent may
designate from time to time.

     INDEBTEDNESS.  Collectively without duplication, whether classified as
Indebtedness, an Investment or otherwise on the obligor's balance sheet, (a)
all indebtedness for borrowed money, (b) all obligations for the deferred
purchase price of property or services (other than trade payables not overdue
by more than ninety (90) days incurred in the ordinary course of business),
(c) all obligations evidenced by notes, bonds, debentures or other similar
debt instruments, (d) all obligations created or arising under any
conditional sale or other title retention agreement with respect to property
acquired (even though the rights and remedies of the seller or lender under

                                       -7-
<PAGE>

such agreement in the event of default are limited to repossession or sale of
such property), (e) all obligations, liabilities and indebtedness under
Capitalized Leases, (f) all obligations, liabilities or indebtedness
(contingent or otherwise) under surety, performance bonds or any other
bonding arrangements, (g) all Indebtedness of others referred to in clauses
(a) through (f) above which is guaranteed, or in effect guaranteed, directly
or indirectly in any manner, including through an agreement (A) to pay or
purchase such Indebtedness or to advance or supply funds for the payment or
purchase of such Indebtedness, (B) to purchase, sell or lease (as lessee or
lessor) property, or to purchase or sell services, primarily for the purpose
of enabling any Person to make payment of such Indebtedness or to assure the
holder of such Indebtedness against loss, (C) to supply funds to or in any
other manner invest in any Person (including any agreement to pay for
property or services irrespective of whether such property is received or
such services are rendered) or (D) otherwise to assure any Person against
loss, and (h) all Indebtedness referred to in clauses (a) through (g) above
secured or supported by (or for which the holder of such Indebtedness has an
existing right, contingent or otherwise, to be secured or supported by) any
lien or encumbrance on (or other right of reourse to or against) property
(including, without limitation, accounts and contract rights), even though
the owner of the property has not assumed or become liable, contractually or
otherwise, for the payment of such Indebtedness; PROVIDED THAT if either a
Permitted Receivables Transaction or a sale of receivables under the WMF
Agreement is outstanding and is accounted for as a sale of accounts
receivable under generally accepted accounting principles, Indebtedness
determined as aforesaid shall be adjusted to include the additional
Indebtedness, determined on a consolidated basis, which would have been
outstanding had such Permitted Receivables Transaction been accounted for as
a borrowing.  The sum of all such Indebtedness of the Borrower and its
Subsidiaries on a consolidated basis under (a) through (h) above shall be
referred to as "Total Debt"; PROVIDED, however, that Indebtedness under (f)
above shall be included in such calculation only to the extent that a surety
has been called upon to make payment on a bond.

     INELIGIBLE SECURITIES.  Securities which may not be underwritten or
dealt in by member banks of the Federal Reserve System under Section 16 of
the Banking Act of 1933 (12 U.S.C. Section 24, Seventh), as amended.

     INTEREST PERIOD.  With respect to each Loan (a) initially, the period
commencing on the Drawdown Date of such Loan and ending on the last day of
one of the periods set forth below, as selected by the Borrower in accordance
with this Agreement (i) for any Base Rate Loan or Swing Line Loan, the first
day of the month; (ii) for any Eurodollar Loan, 1, 2, 3, or 6 months; (iii)
for any Absolute Competitive Bid Loan, from 7 through 180 days; and (iv) for
any LIBOR Competitive Bid Loan, 1, 2, 3, 4, 5, or 6 months; and (b)
thereafter, each period commencing on the last day of the next preceding
Interest Period applicable to such Loan and ending on the last day of one of
the periods set forth above, as selected by the Borrower in accordance with
this Agreement or if such period has no numerically corresponding day, on the
last Business Day of such period; PROVIDED that any Interest Period which
would otherwise end on a day which is not a Business Day shall be deemed to
end on the next succeeding Business Day; PROVIDED FURTHER that for any
Interest Period for any Eurodollar Loan or LIBOR Competitive Bid Loan, if
such next succeeding Business Day falls in the next succeeding calendar
month, such Interest Period shall

                                       -8-
<PAGE>

be deemed to end on the next preceding Business Day; and PROVIDED FURTHER
that no Interest Period shall extend beyond the Revolving Credit Maturity
Date.

     INTERIM BALANCE SHEET DATE.  March 31, 1998.

     INVESTMENTS.  All expenditures made by a Person and all liabilities
incurred (contingently or otherwise) by a Person for the acquisition of stock
(other than the stock of wholly owned Subsidiaries), pre-payments for use of
landfill air space in excess of usual and customary industry practice, or
Indebtedness of, or for loans, advances, capital contributions or transfers
of property to, or in respect of any guaranties or other commitments as
described under Indebtedness, or obligations of, any other Person, including
without limitation, the funding of any captive insurance company (other than
loans, advances, capital contributions or transfers of property to any wholly
owned Subsidiaries or guaranties with respect to Indebtedness of wholly owned
Subsidiaries).  In determining the aggregate amount of Investments
outstanding at any particular time: (a) the amount of any Investment
represented by a guaranty shall be taken at not less than the principal
amount of the obligations guaranteed and still outstanding; (b) there shall
be included as an Investment all interest accrued with respect to
Indebtedness constituting an Investment unless and until such interest is
paid; (c) there shall be deducted in respect of each such Investment any
amount received as a return of capital (but only by repurchase, redemption,
retirement, repayment, liquidating dividend or liquidating distribution); (d)
there shall not be deducted in respect of any Investment any amounts received
as earnings on such Investment, whether as dividends, interest or otherwise,
except that accrued interest included as provided in the foregoing clause (b)
may be deducted when paid; and (e) there shall not be deducted from the
aggregate amount of Investments any decrease in the value thereof.

     ISSUANCE FEE.  See Section 3.6.

     ISSUING BANKS.  The Bank(s) issuing Letters of Credit, which shall be
(a) MGT, BOA, Chase and BankBoston, N.A., and (b) such other Banks as agreed
to by the Borrower and the Administrative Agent; and with respect to Old WMI
Letters of Credit only, the Transitional Issuing Banks.

     LETTER OF CREDIT APPLICATIONS.  Letter of credit applications in such
form as may be agreed upon by the Borrower and the Issuing Bank from time to
time which are entered into pursuant to Section 3 hereof, as such Letter of
Credit Applications are amended, varied or supplemented from time to time;
PROVIDED, HOWEVER, in the event of any conflict or inconsistency between the
terms of any Letter of Credit Application and this Agreement, the terms of
this Agreement shall control.

     LETTER OF CREDIT FEE.  See Section 3.6.

     LETTER OF CREDIT PARTICIPATION.  See Section 3.1(b).

     LETTERS OF CREDIT.  Standby letters of credit issued or to be issued by
the Issuing Banks under Section 3 hereof for the account of the Borrower.

     LIBOR COMPETITIVE BID LOAN(S).  See Section 4.3(a).

                                       -9-
<PAGE>

     LIBOR RATE.  For any Interest Period with respect to a LIBOR Competitive
Bid Loan, (a) the rate of interest equal to the rate determined by the
Administrative Agent at which Dollar deposits for such Interest Period are
offered based on information presented on Telerate Page 3750 as of 11:00 a.m.
(London time) two (2) Eurodollar Business Days prior to the first day of such
Interest Period, or (b) if such rate is not shown at such place, the rate of
interest equal to (i) the arithmetic average of the rates per annum for each
Reference Bank at which such Reference Bank's Eurodollar Lending Office is
offered Dollar deposits two (2) Eurodollar Business Days prior to the
beginning of such Interest Period in the interbank eurodollar market where
the eurodollar operations of such Eurodollar Lending Office are customarily
conducted, for delivery on the first day of such Interest Period for the
number of days comprised therein and in an amount comparable to the amount of
the Eurodollar Loan of such Reference Bank to which such Interest Period
applies, DIVIDED BY (ii) a number equal to 1.00 minus the Eurocurrency
Reserve Rate, if applicable (rounded upwards to the nearest 1/16 of one
percent).

     LOAN DOCUMENTS.  This Agreement, the Notes, the Letter of Credit
Applications, the Letters of Credit, and any documents, instruments or
agreements executed in connection with any of the foregoing, each as amended,
modified, supplemented, or replaced from time to time.

     LOANS.  Collectively, the Syndicated Loans, the Swing Line Loans, the
Competitive Bid Loans and the Term Loan.

     MAJORITY BANKS.  The Banks with fifty-one percent (51%) of the Total
Commitment; PROVIDED that in the event that the Total Commitment has been
terminated, the Majority Banks shall be the Banks holding fifty-one percent
(51%) of the aggregate outstanding principal amount of the Obligations on
such date.

     MATERIAL SUBSIDIARY.  Any Subsidiary which, at the time such
determination is made, (a) has assets, revenues, or liabilities equal to at
least $20,000,000, or (b) is the holder of or the applicant for a permit to
operate a solid waste facility pursuant to RCRA or any analogous state law.

     MAXIMUM DRAWING AMOUNT.  The maximum aggregate amount from time to time
that the beneficiaries may draw under outstanding Letters of Credit.

     MGT.  See Preamble.

     MOODY'S.  Moody's Investors Service, Inc.

     MULTIEMPLOYER PLAN.  Any multiemployer plan within the meaning of
Section 3(37) of ERISA maintained or contributed to by the Borrower, any of
its Subsidiaries, or any ERISA Affiliate.

     NEW LENDING OFFICE.  See Section 6.1(c).

     NON-U.S. BANK.  See Section 6.1(b).

                                       -10-
<PAGE>

     NOTES.  Collectively, the Competitive Bid Notes, the Syndicated Notes,
the Swing Line Note and the Term Notes.

     OBLIGATIONS.  All indebtedness, obligations and liabilities of the
Borrower to any of the Banks and the Administrative Agent arising or incurred
under this Agreement or any of the other Loan Documents or in respect of any
of the Loans made or Reimbursement Obligations incurred or the Letters of
Credit, the Notes, or any other instrument at any time evidencing any thereof
individually or collectively, existing on the date of this Agreement or
arising thereafter, direct or indirect, joint or several, absolute or
contingent, matured or unmatured, liquidated or unliquidated, secured or
unsecured, arising by contract, operation of law or otherwise.

     OLD WMI.  Waste Management Holdings, Inc. (f/k/a Waste Management,
Inc.), a wholly owned Subsidiary of the Borrower.

     OVERNIGHT FEDERAL FUNDS EFFECTIVE RATE.  The overnight federal funds
effective rate as published by the Board of Governors of the Federal Reserve
System, as in effect from time to time, or if such rate is not published, the
average of the quotations at approximately 11:00 a.m. New York time for the
day of such transaction(s), received by the Administrative Agent from three
Federal Funds brokers of recognized standing selected by the Administrative
Agent.

     PBGC.  The Pension Benefit Guaranty Corporation created by Section 4002
of ERISA and any successor entity or entities having similar responsibilities.

     PERMITTED LIENS.  See Section 9.2.

     PERMITTED RECEIVABLES TRANSACTION.  Any sale or sales of, and/or
securitization of, any accounts receivable of the Borrower and/or any of its
Subsidiaries (the "Receivables") pursuant to which (a) the Borrower and its
Subsidiaries realize aggregate net proceeds of not more than $250,000,000 at
any one time outstanding, including, without limitation, any revolving
purchase(s) of Receivables where the maximum aggregate uncollected purchase
price (exclusive of any deferred purchase price) for such Receivables at any
time outstanding does not exceed $250,000,000, and (b) which Receivables
shall not be discounted more than 25%.

     PERSON.  Any individual, corporation, partnership, joint venture,
limited liability company, trust, unincorporated association, business, or
other legal entity, and any government or any governmental agency or
political subdivision thereof.

                                       -11-
<PAGE>

     PRICING TABLE:
<TABLE>
- -------------------------------------------------------------------------------
                                 APPLICABLE                      APPLICABLE
            SENIOR PUBLIC         FACILITY     APPLICABLE        EURODOLLAR
 LEVEL        DEBT RATING           RATE        L/C RATE           RATE
- -------------------------------------------------------------------------------
<S>     <C>                      <C>           <C>            <C>
   1
        At least A- by            0.06000%       0.2400%      Eurodollar Rate
        Standard & Poor's or      per annum     per annum      plus 0.2400%
        at least A3 by Moody's                                   per annum
- -------------------------------------------------------------------------------
   2    At least BBB+ by          0.08000%       0.2950%      Eurodollar Rate
        Standard & Poor's or      per annum     per annum      plus 0.2950%
        at least Baa1 by                                         per annum
        Moody's
- -------------------------------------------------------------------------------
   3    At least BBB by            0.1000%       0.3500%      Eurodollar Rate
        Standard & Poor's or      per annum     per annum      plus 0.3500%
        at least Baa2 by                                         per annum
        Moody's
- -------------------------------------------------------------------------------
   4    At least BBB- by           0.1250%       0.4000%      Eurodollar Rate
        Standard & Poor's or      per annum     per annum      plus 0.4000%
        at least Baa3 by                                         per annum
        Moody's
- -------------------------------------------------------------------------------
   5    At least BB+ by            0.2000%       0.5500%      Eurodollar Rate
        Standard & Poor's or      per annum     per annum      plus 0.5500%
        at least Ba1 by                                          per annum
        Moody's
- -------------------------------------------------------------------------------
   6    If no other level          0.2500%       0.6250%      Eurodollar Rate
        applies                   per annum     per annum      plus 0.6250%
                                                                 per annum
- -------------------------------------------------------------------------------
</TABLE>

The applicable rates charged for any day shall be determined by the Senior
Public Debt Rating in effect as of that day.  The initial pricing for (a) the
Applicable Facility Rate shall be 0.1000 % per annum, (b) the Applicable L/C
Rate shall be 0.3500% per annum and (c) the Applicable Eurodollar Rate shall
be the Eurodollar Rate plus 0.3500% per annum, and shall be effective until
the notice of a change in the Senior Public Debt Rating.

     RCRA.  See Section 7.15(a).

     REAL PROPERTY.  All real property heretofore, now, or hereafter owned,
operated, or leased by the Borrower or any of its Subsidiaries.

     REFERENCE BANKS.  BOA, MGT and Deutsche.

     REGULATORY DISPOSITION.  The disposition of any assets of the Borrower
and its Subsidiaries (including Old WMI) required under antitrust laws in
connection with the WMI Merger.

                                       -12-
<PAGE>

     REIMBURSEMENT OBLIGATION.  The Borrower's obligation to reimburse the
applicable Issuing Bank and the Banks on account of any drawing under any
Letter of Credit, all as provided in Section 3.2.

     RELEASE.  Shall have the meaning specified in the Comprehensive
Environmental Response, Compensation and Liability Act of 1980, 42 U.S.C.
Sections 9601 ET SEQ. ("CERCLA") and the term "Disposal" (or "Disposed")
shall have the meaning specified in the Resource Conservation and Recovery
Act of 1976, 42 U.S.C. Sections 6901 ET SEQ. ("RCRA") and regulations
promulgated thereunder; provided, that in the event either CERCLA or RCRA is
amended so as to broaden the meaning of any term defined thereby, such
broader meaning shall apply as of the effective date of such amendment and
provided further, to the extent that the laws of Canada or a state, province,
territory or other political subdivision thereof wherein the property lies
establish a meaning for "Release" or "Disposal" which is broader than
specified in either CERCLA, or RCRA, such broader meaning shall apply to the
Borrower's or any of its Subsidiaries' activities in that state, province,
territory or political subdivision.

     REPLACEMENT BANK.  See Section 6.11.

     REPLACEMENT NOTICE.  See Section 6.11.

     REVOLVING CREDIT LOANS.  Collectively, the Syndicated Loans, the Swing
Line Loans and the Competitive Bid Loans.

     REVOLVING CREDIT MATURITY DATE.  July __, 1999, as the same may be
extended in the sole discretion of the Banks pursuant to Section 2.10 hereof.

     REVOLVING CREDIT NOTES.  Collectively, the Competitive Bid Notes, the
Syndicated Notes and the Swing Line Note.

     SANIFILL.  Sanifill, Inc., a Delaware corporation having its chief
executive office at 1001 Fannin Street, Suite 4000, Houston, Texas 77002.

     SANIFILL CONVERTIBLE SUBORDINATED DEBT.  Indebtedness under that certain
indenture dated as of March 1, 1996, by and between Sanifill and Chase Bank
of Texas, N.A. (f/k/a Texas Commerce Bank National Association) as Trustee,
as in effect on August 7, 1997, with respect to $115,000,000 of 5%
convertible subordinated debt due March 1, 2006.

     SECTION 20 SUBSIDIARY.  A Subsidiary of the bank holding company
controlling any Bank, which Subsidiary has been granted authority by the
Federal Reserve Board to underwrite and deal in certain Ineligible Securities.

     SENIOR PUBLIC DEBT RATING.  The rating(s) of the Borrower's public
unsecured long-term senior debt, without third party credit enhancement,
issued by Moody's and/or Standard & Poor's; or in the event no public
unsecured long-term senior debt is outstanding, the rating(s) of this credit
facility issued by Moody's and/or Standard & Poor's upon the request of the
Borrower; PROVIDED that until such time as the Borrower receives such
rating(s) on such public unsecured

                                       -13-
<PAGE>

long-term senior debt or this credit facility, the Borrower's corporate
credit rating by Standard & Poor's shall apply; PROVIDED FURTHER that in the
event that both Moody's and Standard & Poor's have issued such ratings, the
Senior Public Debt Rating will be the higher of such ratings unless such
ratings by Moody's and Standard & Poor's are more than one rank apart, as set
forth in the table below, in which case the Senior Public Debt Rating will be
set at one rank below the higher of the two ratings.

<TABLE>
                 <S>        <C>                            <C>
- -------------------------------------------------------------------------------
                 RANK       STANDARD & POOR'S              MOODY'S
                   1                 A-                        A3
- -------------------------------------------------------------------------------
                   2                BBB+                      Baa1
- -------------------------------------------------------------------------------
                   3                BBB                       Baa2
- -------------------------------------------------------------------------------
                   4                BBB-                      Baa3
- -------------------------------------------------------------------------------
                   5                BB+                       Ba1
- -------------------------------------------------------------------------------
                   6         If no other level     If no other level applies
                                  applies
- -------------------------------------------------------------------------------
</TABLE>

     STANDARD & POOR'S.  Standard & Poor's Ratings Services, a division of
The McGraw-Hill Companies, Inc.

     SUBSIDIARY.  Any corporation, association, trust, or other business
entity of which the designated parent shall at any time own directly or
indirectly through a Subsidiary or Subsidiaries at least a majority of the
outstanding capital stock or other interest entitled to vote generally.

     SWING LINE LOANS.  See Section 2.12(a).

     SWING LINE NOTE.  See Section 2.12(a).

     SWING LINE SETTLEMENT.  The making or receiving of payments, in
immediately available funds, by the Banks to or from the Administrative Agent
in accordance with Section 2.12 hereof to the extent necessary to cause each
Bank's actual share of the outstanding amount of the Syndicated Loans to be
equal to such Bank's Commitment Percentage of the outstanding amount of such
Syndicated Loans, in any case when, prior to such action, the actual share is
not so equal.

     SWING LINE SETTLEMENT AMOUNT.  See Section 2.12(b).

     SWING LINE SETTLEMENT DATE.  See Section 2.12(b).

     SWING LINE SETTLING BANK.  See Section 2.12(b).

                                       -14-
<PAGE>

     SYNDICATED LOAN REQUEST.  See Section 2.6(a).

     SYNDICATED LOANS.  A borrowing hereunder consisting of one or more loans
made by the Banks to the Borrower under the procedure described in Section
2.1(a) and Section 2.12 hereof.

     SYNDICATED NOTES.  See Section 2.4(a).

     TERM LOAN. The term loan made or to be made by the Banks to the Borrower
on the Revolving Credit Maturity Date as contemplated by Section 5.

     TERM LOAN MATURITY DATE.  The date 364 days after the Revolving Credit
Maturity Date.

     TERM NOTES.  See Section 5.1.

     TOTAL COMMITMENT.  $3,000,000,000, as such amount may be reduced
pursuant to Section 2.3 hereof, or, if such Total Commitment has been
terminated pursuant to Section 2.3 or Section 13.2 hereof, zero.

     TRANSITIONAL ISSUING BANKS.  The First National Bank of Chicago, First
Union National Bank, and Mellon Bank, N.A.

     UNITED.  United Waste Systems, Inc., a Delaware corporation having its
chief executive office at 1001 Fannin Street, Suite 4000, Houston, Texas
77002.

     UNITED CONVERTIBLE SUBORDINATED DEBT.  Indebtedness under that certain
indenture dated as of June 5, 1996 between United and Bankers Trust Company,
as trustee, with respect to $150,000,000 of 4 1/2% convertible subordinated
notes due June 1, 2001.

     USA WASTE BRIDGE LOAN.  That certain Bridge Loan Agreement dated as of
January 21, 1998 by and among USA Waste Services, Inc., MGT and the other
banks party thereto, and MGT as agent thereunder.

     USA WASTE AVERAGE QUARTERLY UTILIZATION AMOUNT.  The average outstanding
amount of the "Loans" (as defined in the USA Waste Credit Agreement) PLUS the
average "Maximum Drawing Amount" and unpaid "Reimbursement Obligations" (both
as defined in the USA Waste Credit Agreement) of the "Letters of Credit" (as
defined in the USA Waste Credit Agreement) in any calendar quarter under the
USA Waste Credit Agreement.

     USA WASTE CREDIT AGREEMENT.  That certain Second Amended and Restated
Revolving Credit Agreement dated as of July 16, 1998 by and among USA Waste
Services, Inc., Sanifill, United, BOA, MGT and the other banks party thereto,
and MGT as administrative and documentation agent thereunder, as amended from
time to time.

     UTILIZATION FEE.  See Section 2.2(b).

     WMF AGREEMENT.  The Receivables Transfer and the Servicing Agreement for
$550,000,000 dated as of December 27, 1997, among Old WMI, Waste Management
Financing

                                       -15-
<PAGE>

Corporation, and the Subsidiaries of Old WMI party thereto, the lenders party
thereto and The Chase Manhattan Bank, as agent.

     WMI CREDIT AGREEMENT.  That certain Credit Agreement for $1,250,000,000
dated as of March 31, 1998, among Old WMI, the lenders party thereto and The
Chase Manhattan Bank, as administrative agent.

     WMI MERGER.  The merger of Dome into Old WMI pursuant to the WMI Merger
Agreement, on or about July 16, 1998, with Old WMI being the surviving
corporation and becoming a wholly owned subsidiary of the Borrower and with
Old WMI changing its name to Waste Management Holdings, Inc.

     WMI MERGER AGREEMENT.  The Agreement and Plan of Merger, dated as of
March 10, 1998, among the Borrower, Dome and Old WMI.

     WMI MERGER COSTS AND SPECIAL CHARGES.  Up to $1,700,000,000 in pooling
costs and merger-related expenses actually incurred with respect to the WMI
Merger, taken as a special charge in the quarter ending September 30, l998,
and up to $200,000,000 in after tax charges actually incurred with respect to
Old WMI shareholder litigation and Securities and Exchange Commission
investigations which were pending or initiated prior to the Effective Date,
taken as a special charge.

     WMINTERNATIONAL.  Waste Management International plc, a public limited
company incorporated in the United Kingdom and a Subsidiary of Old WMI.

     YEAR 2000 COMPLIANCE ISSUE.  The risk that computer applications used by
the Borrower or any of its Subsidiaries may be unable to recognize and
perform properly date-sensitive functions involving certain dates prior to
and any date after December 31, 1999.

     SECTION 1.2.  RULES OF INTERPRETATION.

          (a)  A reference to any document or agreement (including this
     Agreement) shall include such document or agreement as amended, modified or
     supplemented from time to time in accordance with its terms and the terms
     of this Agreement.

          (b)  The singular includes the plural and the plural includes the
     singular.

          (c)  A reference to any law includes any amendment or modification to
     such law.

          (d)  A reference to any Person includes its permitted successors and
     permitted assigns.

          (e)  Accounting terms capitalized but not otherwise defined herein
     have the meanings assigned to them by generally accepted accounting
     principles applied on a consistent basis by the accounting entity to which
     they refer.

                                       -16-
<PAGE>

          (f)  The words "include", "includes" and "including" are not limiting.

          (g)  All terms not specifically defined herein or by generally
     accepted accounting principles, which terms are defined in the Uniform
     Commercial Code as in effect in the State of New York, have the meanings
     assigned to them therein.

          (h)  Reference to a particular "Section " refers to that section of
     this Agreement unless otherwise indicated.

          (i)  The words "herein", "hereof", "hereunder" and words of like
     import shall refer to this Agreement as a whole and not to any particular
     section or subdivision of this Agreement.

     SECTION 2.  THE SYNDICATED LOAN FACILITIES.

     SECTION 2.1.  COMMITMENT TO LEND.

          (a)  Subject to the terms and conditions set forth in this Agreement,
     each of the Banks severally agrees to lend to the Borrower and the Borrower
     may borrow, repay, and reborrow from time to time between the Effective
     Date and the Revolving Credit Maturity Date, upon notice by the Borrower to
     the Administrative Agent given in accordance with this Section 2, its
     Commitment Percentage of the Syndicated Loans as are requested by the
     Borrower; PROVIDED THAT the sum of the outstanding principal amount of the
     Syndicated Loans (including the Swing Line Loans) and the Maximum Drawing
     Amount of outstanding Letters of Credit shall not exceed the Total
     Commitment MINUS the aggregate amount of Competitive Bid Loans outstanding
     at such time; and PROVIDED that the Borrower shall maintain $400,000,000
     availability hereunder until the buyback of the WMInternational shares (the
     "WMInternational Reserve").

          (b)  Each request for a Loan or Letter of Credit hereunder shall
     constitute a representation and warranty by the Borrower that the
     conditions set forth in Section 11 and Section 12, as the case may be, have
     been satisfied on the date of such request.  Any unpaid Reimbursement
     Obligation shall be a Base Rate Loan, as set forth in Section 3.2(a).

     SECTION 2.2.  FACILITY FEE; UTILIZATION FEE.

          (a)  The Borrower agrees to pay to the Administrative Agent for the
     account of the Banks a fee (the "Facility Fee") on the Total Commitment
     equal to the Applicable Facility Rate multiplied by the Total Commitment.
     The Facility Fee shall be payable for the period from and after the
     Effective Date quarterly in arrears on the first day of each calendar
     quarter for the immediately preceding calendar quarter commencing on
     October 1, 1998 with a final payment on the Revolving Credit Maturity Date
     (or on the date of termination in full of the Total Commitment, if
     earlier).  The Facility Fee shall be distributed pro rata among the Banks
     in accordance with each Bank's Commitment Percentage.

                                       -17-
<PAGE>

          (b)  In the event that the average outstanding amount of (i) the USA
     Waste Average Quarterly Utilization Amount, PLUS (ii) the Average Quarterly
     Utilization Amount, exceeds fifty percent (50%) of the Aggregate Revolving
     Commitments in effect during such calendar quarter, the Borrower agrees to
     pay to the Administrative Agent for the account of the Banks party to this
     Agreement a fee (the "Utilization Fee") equal to 0.10% per annum on the
     Average Quarterly Utilization Amount.  If applicable, the Utilization Fee
     shall be payable quarterly in arrears on the first day of each calendar
     quarter for the immediate preceding calendar quarter (or such lesser period
     of time as has elapsed since the Effective Date), commencing October 1,
     1998 with a final payment on the Revolving Credit Maturity Date (or on the
     date of termination in full of the Total Commitment if earlier).  The
     Utilization Fee shall be distributed PRO RATA among the Banks party to this
     Agreement in accordance with each Bank's Commitment Percentage.

     SECTION 2.3.  REDUCTION OF TOTAL COMMITMENT.

          (a)  The Borrower shall have the right at any time and from time to
     time upon three (3) Business Days' prior written notice to the
     Administrative Agent to reduce by $25,000,000 or a greater amount or
     terminate entirely, the Total Commitment, whereupon each Bank's Commitment
     shall be reduced PRO RATA in accordance with such Bank's Commitment
     Percentage of the amount specified in such notice or, as the case may be,
     terminated PROVIDED that at no time may (i) the Total Commitment be reduced
     to an amount less than the sum of (A) the Maximum Drawing Amount of all
     Letters of Credit, and (B) all Revolving Credit Loans then outstanding.

          (b)  No reduction or termination of the Total Commitment once made may
     be revoked; the portion of the Total Commitment reduced or terminated may
     not be reinstated; and amounts in respect of such reduced or terminated
     portion may not be reborrowed.

          (c)  The Administrative Agent will notify the Banks promptly after
     receiving any notice delivered by the Borrower pursuant to this Section 2.3
     and will distribute to each Bank a revised SCHEDULE 1 to this Agreement.

     SECTION 2.4.  THE SYNDICATED NOTES.

          (a)  The Syndicated Loans shall be evidenced by separate promissory
     notes of the Borrower in substantially the form of EXHIBIT A hereto (each,
     a "Syndicated Note"), dated as of the Effective Date and completed with
     appropriate insertions.  One Syndicated Note shall be payable to the order
     of each Bank in an amount equal to its maximum Commitment, and shall
     represent the obligation of the Borrower to pay such Bank such principal
     amount or, if less, the outstanding principal amount of all Syndicated
     Loans made by such Bank, plus interest accrued thereon, as set forth
     herein.

          (b)  The Borrower irrevocably authorizes each Bank to make, or cause
     to be made, in connection with a Drawdown Date of any Syndicated Loan and
     at the time of receipt of any payment of principal on its Syndicated Note,
     an appropriate notation on

                                       -18-
<PAGE>

     such Bank's records or on the schedule attached to such Bank's Syndicated
     Note or a continuation of such schedule attached thereto reflecting the
     making of such Loan, or the receipt of such payment (as the case may be)
     and each Bank may, prior to any transfer of its Syndicated Note endorse on
     the reverse side thereof the outstanding principal amount of such Loans
     evidenced thereby.  The outstanding amount of the Syndicated Loans set
     forth on such Bank's records shall be PRIMA FACIE evidence of the principal
     amount thereof owing and unpaid to such Bank, but the failure to record, or
     any error in so recording, any such amount shall not limit or otherwise
     affect the obligations of the Borrower hereunder or under such Notes to
     make payments of principal of or interest on any such Notes when due.

     SECTION 2.5.  INTEREST ON SYNDICATED LOANS.

          (a)  The outstanding principal amount of the Syndicated Loans shall
     bear interest at the rate per annum equal to (i) the Base Rate on Base Rate
     Loans, (ii) the Applicable Eurodollar Rate on Eurodollar Loans and (iii)
     the Applicable Swing Line Rate on Swing Line Loans.

          (b)  Interest shall be payable (i) monthly in arrears on the first
     Business Day of each month, commencing August 1, 1998, on Base Rate Loans,
     (ii) on the last day of the applicable Interest Period, and if such
     Interest Period is longer than three months, also on the last day of the
     third month following the commencement of such Interest Period, on
     Eurodollar Loans, and (iii) on the Revolving Credit Maturity Date for all
     Revolving Credit Loans.

     SECTION 2.6.  REQUESTS FOR SYNDICATED LOANS.

          (a)  The Borrower shall give to the Administrative Agent written
notice in the form of EXHIBIT D hereto (or telephonic notice confirmed in
writing or a facsimile in the form of EXHIBIT D hereto) of each Syndicated
Loan requested hereunder (a "Syndicated Loan Request") not later than (a)
11:00 a.m. (New York time) on the proposed Drawdown Date of any Base Rate
Loan, or (b) 11:00 a.m. (New York time) three (3) Eurodollar Business Days
prior to the proposed Drawdown Date of any Eurodollar Loan.  Each such
Syndicated Loan Request shall specify (A) the principal amount of the
Syndicated Loan requested, (B) the proposed Drawdown Date of such Syndicated
Loan, (C) whether such Syndicated Loan requested is to be a Base Rate Loan or
a Eurodollar Loan, and (D) the Interest Period for such Syndicated Loan, if a
Eurodollar Loan.  Each Syndicated Loan requested shall be in a minimum amount
of $10,000,000.  Each such Syndicated Loan Request shall reflect the Maximum
Drawing Amount of all Letters of Credit outstanding and the amount of all
Revolving Credit Loans outstanding (including Competitive Bid Loans and Swing
Line Loans).  Syndicated Loan Requests made hereunder shall be irrevocable
and binding on the Borrower, and shall obligate the Borrower to accept the
Syndicated Loan requested from the Banks on the proposed Drawdown Date.

     (b)  Each of the representations and warranties made by the Borrower to
the Banks or the Administrative Agent in this Agreement or any other Loan
Document shall be true and correct in all material respects when made and
shall, for all purposes of this Agreement, be

                                       -19-
<PAGE>

deemed to be repeated by the Borrower on and as of the date of the submission
of a Syndicated Loan Request, Competitive Bid Quote Request, or Letter of
Credit Application and on and as of the Drawdown Date of any Revolving Credit
Loan or the date of issuance of any Letter of Credit (except to the extent
(i) of changes resulting from transactions contemplated or permitted by this
Agreement and the other Loan Documents, (ii) of changes occurring in the
ordinary course of business that singly or in the aggregate are not
materially adverse to the business, assets or financial condition of the
Borrower and its Subsidiaries as a whole, or (iii) that such representations
and warranties expressly relate only to an earlier date).

     (c)  The Administrative Agent shall promptly notify each Bank of each
Syndicated Loan Request received by the Administrative Agent (i) on the
proposed Drawdown Date of any Base Rate Loan, or (ii) three (3) Eurodollar
Business Days prior to the proposed Drawdown Date of any Eurodollar Loan.

     SECTION 2.7.  ELECTION OF EURODOLLAR RATE; NOTICE OF ELECTION; INTEREST
PERIODS; MINIMUM AMOUNTS.

          (a)  At the Borrower's option, so long as no Default or Event of
     Default has occurred and is then continuing, the Borrower may (i) elect to
     convert any Base Rate Loan or a portion thereof to a Eurodollar Loan, (ii)
     at the time of any Syndicated Loan Request, specify that such requested
     Loan shall be a Eurodollar Loan, or (iii) upon expiration of the applicable
     Interest Period, elect to maintain an existing Eurodollar Loan as such,
     PROVIDED that the Borrower give notice to the Administrative Agent pursuant
     to Section 2.7(b) hereof.  Upon determining any Eurodollar Rate, the
     Administrative Agent shall forthwith provide notice thereof to the Borrower
     and the Banks, and each such notice to the Borrower shall be considered
     PRIMA FACIE correct and binding, absent manifest error.

          (b)  Three (3) Eurodollar Business Days prior to the making of any
     Eurodollar Loan or the conversion of any Base Rate Loan to a Eurodollar
     Loan, or, in the case of an outstanding Eurodollar Loan, the expiration
     date of the applicable Interest Period, the Borrower shall give written,
     telex or facsimile notice received by the Administrative Agent not later
     than 11:00 a.m. (New York time) of its election pursuant to Section 2.7(a).
     Each such notice delivered to the Administrative Agent shall specify the
     aggregate principal amount of the Syndicated Loans to be borrowed or
     maintained as or converted to Eurodollar Loans and the requested duration
     of the Interest Period that will be applicable to such Eurodollar Loan, and
     shall be irrevocable and binding upon the Borrower.  If the Borrower shall
     fail to give the Administrative Agent notice of its election hereunder
     together with all of the other information required by this Section 2.7(b)
     with respect to any Syndicated Loan, whether at the end of an Interest
     Period or otherwise, such Syndicated Loan shall be deemed a Base Rate Loan.
     The Administrative Agent shall promptly notify the Banks in writing (or by
     telephone confirmed in writing or by facsimile) of such election.

          (c)  Notwithstanding anything herein to the contrary, the Borrower may
     not specify an Interest Period that would extend beyond the Revolving
     Credit Maturity Date.

                                       -20-

<PAGE>

          (d)  No conversion of Loans pursuant to this Section 2.7 may result in
     Eurodollar Loans that are less than $5,000,000.  In no event shall the
     Borrower have more than eight (8) different Interest Periods for borrowings
     of Eurodollar Loans outstanding at any time.

          (e)  Subject to the terms and conditions of Section 6.7 hereof, if any
     affected Bank demands compensation under Section 6.4(c) or (d) with respect
     to any Eurodollar Loan, the Borrower may at any time, upon at least three
     (3) Business Days' prior written notice to the applicable Administrative
     Agent, elect to convert such Eurodollar Loan into a Base Rate Loan (on
     which interest and principal shall be payable contemporaneously with the
     related Eurodollar Loans of the other Banks).  Thereafter, and until such
     time as the affected Bank notifies the Administrative Agent that the
     circumstances giving rise to the demand for compensation under Section
     6.4(c) or (d) no longer exist, all requests for Eurodollar Loans from such
     affected Bank shall be deemed to be requests for Base Rate Loans.  Once the
     affected Bank notifies the Administrative Agent that such circumstances no
     longer exist, the Borrower may elect that the principal amount of each such
     Loan converted hereunder shall again bear interest as Eurodollar Loans
     beginning on the first day of the next succeeding Interest Period
     applicable to the related Eurodollar Loans of the other Banks.

     SECTION 2.8.  FUNDS FOR SYNDICATED LOANS.  Not later than 1:00 p.m. (New 
York time) on the proposed Drawdown Date of Syndicated Loans, each of the 
Banks will make available to the Administrative Agent at its Head Office, in 
immediately available funds, the amount of its Commitment Percentage of the 
amount of the requested Loan. Upon receipt from each Bank of such amount, and 
upon receipt of the documents required by Section 11 and Section 12 and the 
satisfaction of the other conditions set forth therein, the Administrative 
Agent will make available to the Borrower the aggregate amount of such 
Syndicated Loans made available by the Banks.  The failure or refusal of any 
Bank to make available to the Administrative Agent at the aforesaid time and 
place on any Drawdown Date the amount of its Commitment Percentage of the 
requested Syndicated Loan shall not relieve any other Bank from its several 
obligations hereunder to make available to the Administrative Agent the 
amount of such Bank's Commitment Percentage of the requested Loan.

     SECTION 2.9.  MATURITY OF THE REVOLVING CREDIT LOANS AND REIMBURSEMENT 
OBLIGATIONS.  The Borrower promises to pay on the Revolving Credit Maturity 
Date, and there shall become absolutely due and payable on the Revolving 
Credit Maturity Date, all of the Revolving Credit Loans and unpaid 
Reimbursement Obligations outstanding on such date, together with any and all 
accrued and unpaid interest thereon and any fees and other amounts owing 
hereunder.

     SECTION 2.10.  REQUEST FOR EXTENSION OF REVOLVING CREDIT MATURITY DATE.  
The Borrower may, provided that no Default or Event of Default has occurred 
and is continuing, by written notice to the Administrative Agent given not 
more than sixty (60) days nor less than forty-five (45) days prior to the 
initial Revolving Credit Maturity Date (the "Initial Maturity Date") request 
that the Initial Maturity Date be extended to the date which is 364 days 
after the Initial Maturity Date.  The Administrative Agent shall notify the 
Banks of such request promptly after receipt, and request each Bank to notify 
the Administrative Agent of its determination to consent or not 

                                    -21-
<PAGE>

to consent to such extension.  Each Bank which makes a determination not to 
consent shall notify the Administrative Agent of such determination by the 
thirtieth (30th) day prior to the Initial Maturity Date (without prejudice to 
any Bank's right to determine not to consent after such thirtieth (30th) day 
but on or before the tenth (10th) Business Day before the Initial Maturity 
Date).  The Borrower may take the actions permitted by Section 6.11 to 
replace any Bank that fails to consent to such extension, or reduce the Total 
Commitment as permitted under Section 2.3. If the Majority Banks (including 
any Replacement Bank, if applicable) consent to the extension by so notifying 
the Administrative Agent in writing no earlier than ten (10) Business Days 
prior to the Initial Maturity Date, the Revolving Credit Maturity Date for 
Revolving Credit Loans of such consenting or Replacement Banks shall be 
extended for 364 days.  The determination of each Bank shall be in the sole 
discretion of such Bank. Each Bank shall give written notice of its 
determination to consent or not to consent to such extension pursuant to this 
Section 2.10, no earlier than the tenth (10th) Business Day prior to the 
Initial Maturity Date.  All non-consenting Banks' Revolving Credit Loans 
shall be payable in full on the Initial Maturity Date, unless the Borrower 
has exercised its option to term out all Revolving Credit Loans pursuant to 
Section 5.1.  Any Bank which fails to give written notice of its consent or 
non-consent shall be deemed not to have consented to the extension hereunder.

     SECTION 2.11.  PREPAYMENTS OR REPAYMENTS OF REVOLVING CREDIT LOANS.  

          (a)  OPTIONAL PREPAYMENTS:  Subject to the terms and conditions of
     Section 6.7, the Borrower shall have the right, at its election, to repay
     or prepay the outstanding amount of the Revolving Credit Loans (other than
     Competitive Bid Loans), as a whole or in part, at any time without penalty
     or premium.  The Borrower shall give the Administrative Agent no later than
     11:00 a.m. (New York time) (i) on the proposed date of prepayment or
     repayment of Base Rate Loans, and (ii) three (3) Eurodollar Business Day
     prior to the proposed date of prepayment or repayment of Eurodollar Rate
     Loans, written notice (or telephonic notice confirmed in writing or by
     facsimile) of any proposed prepayment or repayment pursuant to this Section
     2.11, specifying the proposed date of prepayment or repayment of such Loans
     and the principal amount to be paid.  Notwithstanding the foregoing, the
     Borrower may not prepay any Competitive Bid Loans.  The Administrative
     Agent shall promptly notify each Bank by written notice (or telephonic
     notice confirmed in writing or by facsimile) of such notice of payment.

          (b)  MANDATORY REPAYMENTS:  If at any time the sum of the outstanding
     principal amount of the Revolving Credit Loans PLUS the Maximum Drawing
     Amount of all outstanding Letters of Credit exceeds the Total Commitment,
     whether by reduction of the Total Commitment or otherwise, then the
     Borrower shall immediately pay the amount of such excess to the
     Administrative Agent, (i) for application to the Revolving Credit Loans,
     first to Syndicated Loans, then to Competitive Bid Loans, subject to
     Section 6.7, or (ii) if no Revolving Credit Loans shall be outstanding, to
     be held by the Administrative Agent for the benefit of the Banks as
     collateral security for such excess Maximum Drawing Amount and the Borrower
     hereby grants a security interest in such amount to the Administrative
     Agent for the benefit of the Banks; PROVIDED, HOWEVER, that if the amount
     of cash collateral held by the Administrative Agent pursuant to this
     Section 2.11(b) exceeds 

                                    -22-
<PAGE>

     the Maximum Drawing Amount required to be collateralized from time to 
     time, the Administrative Agent shall return such excess to the Borrower.

     SECTION 2.12.  SWING LINE LOANS; SETTLEMENTS.

          (a)  Solely for ease of administration of the Syndicated Loans, MGT
     may, but shall not be required to, fund Base Rate Loans made in accordance
     with the provisions of this Agreement ("Swing Line Loans").  The Swing Line
     Loans shall be evidenced by a promissory note of the Borrower in
     substantially the form of EXHIBIT B hereto (the "Swing Line Note") and, at
     the discretion of MGT may be in amounts less than $10,000,000 PROVIDED that
     the outstanding amount of Swing Line Loans advanced by MGT hereunder shall
     not exceed $10,000,000 at any time.  Each Bank shall remain severally and
     unconditionally liable to fund its pro rata share (based upon each Bank's
     Commitment Percentage) of such Swing Line Loans on each Swing Line
     Settlement Date and, in the event MGT chooses not to fund all Base Rate
     Loans requested on any date, to fund its Commitment Percentage of the Base
     Rate Loans requested, subject to satisfaction of the provisions hereof
     relating to the making of Base Rate Loans.  Prior to each Swing Line
     Settlement, all payments or repayments of the principal of, and interest
     on, Swing Line Loans shall be credited to the account of MGT.

          (b)  The Banks shall effect Swing Line Settlements on (i) the Business
     Day immediately following any day which MGT gives written notice to the
     Administrative Agent to effect a Swing Line Settlement, (ii) the Business
     Day immediately following the Administrative Agent's becoming aware of the
     existence of any Default or Event of Default, and (iii) the Revolving
     Credit Maturity Date (each such date, a "Swing Line Settlement Date").  One
     (1) Business Day prior to each such Swing Line Settlement Date, the
     Administrative Agent shall give telephonic notice to the Banks of (A) the
     respective outstanding amount of Syndicated Loans made by each Bank as at
     the close of business on the prior day, (B) the amount that any Bank, as
     applicable (a "Swing Line Settling Bank"), shall pay to effect a Swing Line
     Settlement (a "Swing Line Settlement Amount") and (C) the portion (if any)
     of the aggregate Swing Line Settlement Amount to be paid to each Bank.  A
     statement of the Administrative Agent submitted to the Banks with respect
     to any amounts owing hereunder shall be PRIMA FACIE evidence of the amount
     due and owing.  Each Swing Line Settling Bank shall, not later than 1:00
     p.m. (New York time) on each Swing Line Settlement Date, effect a wire
     transfer of immediately available funds to the Administrative Agent at its
     Head Office in the amount of such Bank's Swing Line Settlement Amount.  The
     Administrative Agent shall, as promptly as practicable during normal
     business hours on each Swing Line Settlement Date, effect a wire transfer
     of immediately available funds to each Bank of the Swing Line Settlement
     Amount to be paid to such Bank.  All funds advanced by any Bank as a Swing
     Line Settling Bank pursuant to this Section 2.12(b) shall for all purposes
     be treated as a Base Rate Loan made by such Swing Line Settling Bank to the
     Borrower, and all funds received by any Bank pursuant to this Section
     2.12(b) shall for all purposes be treated as repayment of amounts owed by
     the Borrower with respect to Base Rate Loans made by such Bank.

                                    -23-
<PAGE>

          (c)  The Administrative Agent may (unless notified to the contrary by
     any Swing Line Settling Bank by 12:00 noon (New York time) one (1) Business
     Day prior to the Settlement Date) assume that each Swing Line Settling Bank
     has made available (or will make available by the time specified in Section
     2.12(b)) to the Administrative Agent its Swing Line Settlement Amount, and
     the Administrative Agent may (but shall not be required to), in reliance
     upon such assumption, make available to each applicable Bank its share (if
     any) of the aggregate Swing Line Settlement Amount.  If the Swing Line
     Settlement Amount of such Swing Line Settling Bank is made available to the
     Administrative Agent by such Swing Line Settling Bank on a date after such
     Swing Line Settlement Date, such Swing Line Settling Bank shall pay the
     Administrative Agent on demand an amount equal to the product of (i) the
     average, computed for the period referred to in clause (iii) below, of the
     weighted average annual interest rate paid by the Administrative Agent for
     federal funds acquired by the Administrative Agent during each day included
     in such period TIMES (ii) such Swing Line Settlement Amount TIMES (iii) a
     fraction, the numerator of which is the number of days that elapse from and
     including such Swing Line Settlement Date to but not including the date on
     which such Swing Line Settlement Amount shall become immediately available
     to the Administrative Agent, and the denominator of which is 365.  Upon
     payment of such amount such Swing Line Settling Bank shall be deemed to
     have delivered its Swing Line Settlement Amount on the Swing Line
     Settlement Date and shall become entitled to interest payable by the
     Borrower with respect to such Swing Line Settling Bank's Swing Line
     Settlement Amount as if such share were delivered on the Swing Line
     Settlement Date.  If such Swing Line Settlement Amount is not in fact made
     available to the Administrative Agent by such Swing Line Settling Bank
     within three (3) Business Days of such Swing Line Settlement Date, the
     Administrative Agent shall be entitled to recover such amount from the
     Borrower, with interest thereon at the Base Rate.

          (d)  After any Swing Line Settlement Date, any payment by the Borrower
     of Swing Line Loans hereunder shall be allocated among the Banks, in
     amounts determined so as to provide that after such application and the
     related Swing Line Settlement, the outstanding amount of Syndicated Loans
     of each Bank equals, as nearly as practicable, such Bank's Commitment
     Percentage of the aggregate amount of Syndicated Loans.

     SECTION 3.  LETTERS OF CREDIT.

     SECTION 3.1.  LETTER OF CREDIT COMMITMENTS.

          (a)  Subject to the terms and conditions hereof and the receipt of a
     Letter of Credit Application by an Issuing Bank, with a copy to the
     Administrative Agent reflecting the Maximum Drawing Amount of all Letters
     of Credit (including the requested Letter of Credit), such Issuing Bank, on
     behalf of the Banks and in reliance upon the representations and warranties
     of the Borrower contained herein and the agreement of the Banks contained
     in Section 3.1(b) hereof, agrees to issue Letters of Credit for the account
     of the Borrower (which may, with such Issuing Bank's consent, incorporate
     automatic renewals for periods of up to twelve (12) months), in such form
     as may be 

                                    -24-
<PAGE>

     requested from time to time by the Borrower and agreed to by the Issuing 
     Bank; PROVIDED, HOWEVER, that, after giving effect to such request,
     the aggregate Maximum Drawing Amount of all Letters of Credit issued at any
     time shall not exceed the lesser of (i) $800,000,000 or (ii) the Total
     Commitment MINUS the aggregate outstanding amount of the Revolving Credit
     Loans and PROVIDED FURTHER, that no Letter of Credit shall have an
     expiration date later than five (5) Business Days prior to the Revolving
     Credit Maturity Date.  The letters of credit listed in SCHEDULE 3.1(a)
     issued by the Transitional Issuing Banks to the account of Old WMI or its
     Subsidiaries (the "Old WMI Letters of Credit") shall be Letters of Credit
     under this Agreement issued for the account of the Borrower as of the date
     of the WMI Merger, provided, however, that no Issuance Fee shall be payable
     hereunder to any Transitional Issuing Bank.  The Old WMI Letters of Credit
     may only be renewed or extended by Letters of Credit issued by Issuing
     Banks (other than Transitional Issuing Banks) hereunder.

          (b)  Each Letter of Credit shall be denominated in Dollars.  Each Bank
     severally agrees that it shall be absolutely liable, without regard to the
     occurrence of any Default or Event of Default, the termination of the Total
     Commitment pursuant to Section 13.2, or any other condition precedent
     whatsoever, to the extent of such Bank's Commitment Percentage to reimburse
     the Issuing Bank on demand for the amount of each draft paid by the Issuing
     Bank under each Letter of Credit to the extent that such amount is not
     reimbursed by the Borrower pursuant to Section 3.2 (such agreement for a
     Bank being called herein the "Letter of Credit Participation" of such
     Bank).  Each Bank agrees that its obligation to reimburse the Issuing Bank
     pursuant to this Section 3.1(b) shall not be affected in any way by any
     circumstance other than the gross negligence or willful misconduct of the
     Issuing Bank.

          (c)  Each such reimbursement payment made by a Bank to the Issuing
     Bank shall be treated as the purchase by such Bank of a participating
     interest in the applicable Reimbursement Obligation under Section 3.2 in an
     amount equal to such payment.  Each Bank shall share in accordance with its
     participating interest in any interest which accrues pursuant to Section
     3.2.

     SECTION 3.2.  REIMBURSEMENT OBLIGATION OF THE BORROWER.  In order to 
induce the Issuing Banks to issue, extend and renew each Letter of Credit, 
the Borrower hereby agrees to reimburse or pay to each Issuing Bank, with 
respect to each Letter of Credit issued, extended or renewed by such Issuing 
Bank hereunder as follows:

          (a)  if any draft presented under any Letter of Credit is honored by
     such Issuing Bank or such Issuing Bank otherwise makes payment with respect
     thereto, the sum of (i) the amount paid by such Issuing Bank under or with
     respect to such Letter of Credit, and (ii) the amount of any taxes, fees,
     charges or other costs and expenses whatsoever incurred by such Issuing
     Bank in connection with any payment made by such Issuing Bank under, or
     with respect to, such Letter of Credit, PROVIDED HOWEVER, if the Borrower
     does not reimburse such Issuing Bank on the Drawdown Date, such amount
     shall, provided that no Event of Default under Section 13(g) or 13(h) has
     occurred, become 

                                    -25-
<PAGE>

     automatically a Syndicated Loan which is a Base Rate Loan advanced 
     hereunder in an amount equal to such sum; and

          (b)  upon the Revolving Credit Maturity Date or the acceleration of
     the Reimbursement Obligations with respect to all Letters of Credit in
     accordance with Section 13, an amount equal to the then Maximum Drawing
     Amount of  all Letters of Credit shall be paid by the Borrower to the
     Administrative Agent to be held as cash collateral for the applicable
     Reimbursement Obligations.

     SECTION 3.3.  OBLIGATIONS ABSOLUTE.  The Borrower's respective 
obligations under this Section 3 shall be absolute and unconditional under 
any and all circumstances and irrespective of the occurrence of any Default 
or Event of Default or any condition precedent whatsoever or any setoff, 
counterclaim or defense to payment which the Borrower may have or have had 
against any Issuing Bank, any Bank or any beneficiary of a Letter of Credit, 
and the Borrower expressly waives any such rights that it may have with 
respect thereto.  The Borrower further agrees with each Issuing Bank and the 
Banks that such Issuing Bank and the Banks (i) shall not be responsible for, 
and the Borrower's Reimbursement Obligations under Section 3.2 shall not be 
affected by, among other things, the validity or genuineness of documents or 
of any endorsements thereon, even if such documents should in fact prove to 
be in any or all respects invalid, fraudulent or forged (unless due to the 
willful misconduct of such Issuing Bank or any other Bank), or any dispute 
between or among the Borrower and the beneficiary of any Letter of Credit or 
any financing institution or other party to which any Letter of Credit may be 
transferred or any claims or defenses whatsoever of the Borrower against the 
beneficiary of any Letter of Credit or any such transferee, and (ii) shall 
not be liable for any error, omission, interruption or delay in transmission, 
dispatch or delivery of any message or advice, however transmitted, in 
connection with any Letter of Credit except to the extent of their own 
willful misconduct.  The Borrower agrees that any action taken or omitted by 
any Issuing Bank or any Bank in good faith under or in connection with any 
Letter of Credit and the related drafts and documents shall be binding upon 
the Borrower and shall not result in any liability on the part of such 
Issuing Bank or any Bank (or their respective affiliates) to the Borrower.  
Nothing herein shall constitute a waiver by the Borrower of any of its rights 
against any beneficiary of a Letter of Credit.

     SECTION 3.4.  RELIANCE BY THE ISSUING BANKS.  To the extent not 
inconsistent with Section 3.3, each Issuing Bank shall be entitled to rely, 
and shall be fully protected in relying, upon any Letter of Credit, draft, 
writing, resolution, notice, consent, certificate, affidavit, letter, 
cablegram, telegram, facsimile, telex or teletype message, statement, order 
or other document believed by such Issuing Bank in good faith to be genuine 
and correct and to have been signed, sent or made by the proper Person or 
Persons and upon advice and statements of legal counsel, independent 
accountants and other experts selected by such Issuing Bank.

     SECTION 3.5.  NOTICE REGARDING LETTERS OF CREDIT.  One (1) Business Day 
prior to the issuance of any Letter of Credit or amendments, extensions or 
terminations thereof, the applicable Issuing Bank shall notify the 
Administrative Agent of the terms of such Letter of Credit, amendment, 
extension or termination.  On the day of any drawing under any Letter of 
Credit, such Issuing Bank shall notify the Administrative Agent of such 
drawing under any Letter of Credit.

                                    -26-
<PAGE>

     SECTION 3.6.  LETTER OF CREDIT FEE.  The Borrower shall pay a fee (the 
"Letter of Credit Fee") equal to the Applicable L/C Rate on the Maximum 
Drawing Amount of the Letters of Credit to the Administrative Agent for the 
account of the Banks, to be shared PRO RATA by the Banks in accordance with 
their respective Commitment Percentages.  The Letter of Credit Fee shall be 
payable quarterly in arrears on the first day of each calendar quarter for 
the quarter just ended, commencing October 1, 1998, and on the Revolving 
Credit Maturity Date.  In addition, an issuing fee (the "Issuance Fee") with 
respect to each Letter of Credit to be agreed upon annually between the 
Borrower and each Issuing Bank shall be payable to such Issuing Bank for its 
account. 

     SECTION 4.  COMPETITIVE BID LOANS.

     SECTION 4.1.  THE COMPETITIVE BID OPTION.  In addition to the Syndicated 
Loans made pursuant to Section 2 hereof, the Borrower may request Competitive 
Bid Loans pursuant to the terms of this Section 4.  The Banks may, but shall 
have no obligation to, make such offers and the Borrower may, but shall have 
no obligation to, accept such offers in the manner set forth in this Section 
4.  Notwithstanding any other provision herein to the contrary, at no time 
shall the aggregate principal amount of Competitive Bid Loans outstanding at 
any time exceed the Total Commitment MINUS the sum of (a) the aggregate 
outstanding principal amount of Syndicated Loans (including the Swing Loans), 
PLUS (b) the Maximum Drawing Amount of Letters of Credit, outstanding at such 
time.

     SECTION 4.2.  COMPETITIVE BID LOAN ACCOUNTS: COMPETITIVE BID NOTES.  

          (a)  The obligation of the Borrower to repay the outstanding principal
     amount of any and all Competitive Bid Loans, plus interest at the
     applicable Competitive Bid Rate accrued thereon, shall be evidenced by this
     Agreement and by individual loan accounts (the "Competitive Bid Loan
     Accounts" and individually, a "Competitive Bid Loan Account") maintained by
     the Administrative Agent on its books for each of the Banks, it being the
     intention of the parties hereto that, except as provided for in paragraph
     (b) of this Section 4.2, the Borrower's obligations with respect to
     Competitive Bid Loans are to be evidenced only as stated herein and not by
     separate promissory notes.

          (b)  Any Bank may at any time, and from time to time, request that any
     Competitive Bid Loans outstanding to such Bank be evidenced by a promissory
     note of the Borrower in substantially the form of EXHIBIT C hereto (each, a
     "Competitive Bid Note"), dated as of the Effective Date and completed with
     appropriate insertions.  One Competitive Bid Note shall be payable to the
     order of each Bank in an amount equal to the Total Commitment, and
     representing the obligation of the Borrower to pay such Bank such principal
     amount or, if less, the outstanding principal amount of any and all
     Competitive Bid Loans made by such Bank, plus interest at the applicable
     Competitive Bid Rate or Competitive Bid Margin accrued thereon, as set
     forth herein.  Upon execution and delivery by the Borrower of a Competitive
     Bid Note, the Borrower's obligation to repay any and all Competitive Bid
     Loans made to it by such Bank and all interest thereon shall thereafter be
     evidenced by such Competitive Bid Note.

                                    -27-
<PAGE>

          (c)  The Borrower irrevocably authorizes (i) each Bank to make or
     cause to be made, in connection with a Drawdown Date of any Competitive Bid
     Loan or at the time of receipt of any payment of principal on such Bank's
     Competitive Bid Note in the case of a Competitive Bid Note, and (ii) the
     Administrative Agent to make or cause to be made, in connection with a
     Drawdown Date of any Competitive Bid Loan or at the time of receipt of any
     payment of principal on such Bank's Competitive Bid Loan Account in the
     case of a Competitive Bid Loan Account, an appropriate notation on such
     Bank's records or on the schedule attached to such Bank's Competitive Bid
     Note or a continuation of such schedule attached thereto, or the
     Administrative Agent's records, as applicable, reflecting the making of the
     Competitive Bid Loan or the receipt of such payment (as the case may be)
     and such Bank may, prior to any transfer of a Competitive Bid Note, endorse
     on the reverse side thereof the outstanding principal amount of Competitive
     Bid Loans evidenced thereby.  The outstanding amount of the Competitive Bid
     Loans set forth on such Bank's record or the Administrative Agent's
     records, as applicable, shall be PRIMA FACIE evidence of the principal
     amount thereof owing and unpaid to such Bank, but the failure to record, or
     any error in so recording, any such amount shall not limit or otherwise
     affect the obligations of the Borrower hereunder to make payments of
     principal of or interest on any Competitive Bid Loan when due.

     SECTION 4.3.  COMPETITIVE BID QUOTE REQUEST; INVITATION FOR COMPETITIVE BID
QUOTES.  

          (a)  When the Borrower wishes to request offers to make Competitive
     Bid Loans under this Section 4, it shall transmit to the Administrative
     Agent by telex or facsimile a Competitive Bid Quote Request substantially
     in the form of EXHIBIT H hereto (a "Competitive Bid Quote Request") so as
     to be received no later than 1:00 p.m. (New York time) (x) five (5)
     Eurodollar Business Days prior to the requested Drawdown Date in the case
     of a LIBOR Competitive Bid Loan (a "LIBOR Competitive Bid Loan") or (y) one
     (1) Business Day prior to the requested Drawdown Date in the case of an
     Absolute Competitive Bid Loan (an "Absolute Competitive Bid Loan"),
     specifying:

               (i) the requested Drawdown Date (which must be a Eurodollar
          Business Day in the case of a LIBOR Competitive Bid Loan or a Business
          Day in the case of an Absolute Competitive Bid Loan);

               (ii) the aggregate amount of such Competitive Bid Loans, which
          shall be $10,000,000 or larger multiple of $1,000,000; 

               (iii) the duration of the Interest Period(s) applicable thereto,
          subject to the provisions of the definition of Interest Period; and

               (iv)  whether the Competitive Bid Quotes requested are for LIBOR
          Competitive Bid Loans or Absolute Competitive Bid Loans.

     The Borrower may request offers to make Competitive Bid Loans for more than
     one Interest Period in a single Competitive Bid Quote Request.  No new
     Competitive Bid Quote Request shall be given until the Borrower has
     notified the Administrative Agent of 

                                    -28-
<PAGE>

     its acceptance or non-acceptance of the Competitive Bid Quotes relating to 
     any outstanding Competitive Bid Quote Request.

          (b)  Promptly upon receipt of a Competitive Bid Quote Request, the
     Administrative Agent shall send to the Banks by telecopy or facsimile
     transmission an Invitation for Competitive Bid Quotes substantially in the
     form of EXHIBIT I hereto, which shall constitute an invitation by the
     Borrower to each Bank to submit Competitive Bid Quotes in accordance with
     this Section 4.  

     SECTION 4.4.  ALTERNATIVE MANNER OF PROCEDURE.  If, after receipt by the 
Administrative Agent and each of the Banks of a Competitive Bid Quote Request 
from the Borrower in accordance with Section 4.3, the Administrative Agent or 
any Bank shall be unable to complete any procedure of the auction process 
described in Sections 4.5 through 4.6 (inclusive) due to the inability of 
such Person to transmit or receive communications through the means specified 
therein, such Person may rely on telephonic notice for the transmission or 
receipt of such communications.  In any case where such Person shall rely on 
telephone transmission or receipt, any communication made by telephone shall, 
as soon as possible thereafter, be followed by written confirmation thereof.

     SECTION 4.5.  SUBMISSION AND CONTENTS OF COMPETITIVE BID QUOTES.  

          (a)  Each Bank may, but shall be under no obligation to, submit a
     Competitive Bid Quote containing an offer or offers to make Competitive Bid
     Loans in response to any Competitive Bid Quote Request.  Each Competitive
     Bid Quote must comply with the requirements of this Section 4.5 and must be
     submitted to the Administrative Agent by telex or facsimile transmission at
     its offices as specified in or pursuant to Section 23 not later than (x)
     2:00 p.m. (New York time) on the fourth Eurodollar Business Day prior to
     the proposed Drawdown Date, in the case of a LIBOR Competitive Bid Loan or
     (y) 10:00 a.m. (New York time) on the proposed Drawdown Date, in the case
     of an Absolute Competitive Bid Loan, PROVIDED that Competitive Bid Quotes
     may be submitted by the Administrative Agent in its capacity as a Bank only
     if it submits its Competitive Bid Quote to the Borrower not later than (x)
     one hour prior to the deadline for the other Banks, in the case of a LIBOR
     Competitive Bid Loan or (y) 15 minutes prior to the deadline for the other
     Banks, in the case of an Absolute Competitive Bid Loan.  Subject to the
     provisions of Sections 11 and 12 hereof, any Competitive Bid Quote so made
     shall be irrevocable except with the written consent of the Administrative
     Agent given on the instructions of the Borrower.

          (b)  Each Competitive Bid Quote shall be in substantially the form of
     EXHIBIT J hereto and shall in any case specify:

               (i)  the proposed Drawdown Date;

               (ii)  the principal amount of the Competitive Bid Loan for which
          each proposal is being made, which principal amount (w) may be greater
          than or less than the Commitment of the quoting Bank, (x) must be
          $5,000,000 or a larger multiple of $1,000,000, (y) may not exceed the
          aggregate principal amount of 

                                    -29-
<PAGE>

          Competitive Bid Loans for which offers were requested and (z) may be 
          subject to an aggregate limitation as to the principal amount of 
          Competitive Bid Loans for which offers being made by such quoting 
          Bank may be accepted;

               (iii)  the Interest Period(s) for which Competitive Bid Quotes
          are being submitted;

               (iv)  in the case of a LIBOR Competitive Bid Loan, the margin
          above or below the applicable LIBOR Rate (the "Competitive Bid
          Margin") offered for each such Competitive Bid Loan, expressed as a
          percentage (specified to the nearest 1/10,000th of 1%) to be added to
          or subtracted from such LIBOR Rate;

               (v)  in the case of an Absolute Competitive Bid Loan, the rate of
          interest per annum (specified to the nearest 1/10,000th of 1%) (the
          "Competitive Bid Rate") offered for each such Absolute Competitive Bid
          Loan; and

               (vi)  the identity of the quoting Bank.

     A Competitive Bid Quote may include up to five separate offers by the
     quoting Bank with respect to each Interest Period specified in the related
     Invitation for Competitive Bid Quotes.

          (c)  Any Competitive Bid Quote shall be disregarded if it:

               (i)  is not substantially in the form of EXHIBIT J hereto;

               (ii)  contains qualifying, conditional or similar language;

               (iii)  proposes terms other than or in addition to those set
          forth in the applicable Invitation for Competitive Bid Quotes; or

               (iv)  arrives after the time set forth in Section 4.5(a) hereof.

     SECTION 4.6.  NOTICE TO BORROWER.  The Administrative Agent shall 
promptly notify the Borrower of the terms (x) of any Competitive Bid Quote 
submitted by a Bank that is in accordance with Section 4.5 and (y) of any 
Competitive Bid Quote that amends, modifies or is otherwise inconsistent with 
a previous Competitive Bid Quote submitted by such Bank with respect to the 
same Competitive Bid Quote Request.  Any such subsequent Competitive Bid 
Quote shall be disregarded by the Administrative Agent unless such subsequent 
Competitive Bid Quote is submitted solely to correct a manifest error in such 
former Competitive Bid Quote.  The Administrative Agent's notice to the 
Borrower shall specify (A) the aggregate principal amount of Competitive Bid 
Loans for which offers have been received for each Interest Period specified 
in the related Competitive Bid Quote Request, (B) the respective principal 
amounts and Competitive Bid Margins or Competitive Bid Rates, as the case may 
be, so offered, and the identity of the respective Banks submitting such 
offers, and (C) if applicable, limitations on the

                                    -30-
<PAGE>

aggregate principal amount of Competitive Bid Loans for which offers in any 
single Competitive Bid Quote may be accepted.

     SECTION 4.7.  ACCEPTANCE AND NOTICE BY BORROWER AND ADMINISTRATIVE 
AGENT.  Not later than 11:00 a.m. (New York time) on (x) the third Eurodollar 
Business Day prior to the proposed Drawdown Date, in the case of a LIBOR 
Competitive Bid Loan or (y) the proposed Drawdown Date, in the case of an 
Absolute Competitive Bid Loan, the Borrower shall notify the Administrative 
Agent of its acceptance or non-acceptance of each Competitive Bid Quote in 
substantially the form of EXHIBIT K hereto.  The Borrower may accept any 
Competitive Bid Quote in whole or in part; provided that:

          (i)  the aggregate principal amount of each Competitive Bid Loan may
     not exceed the applicable amount set forth in the related Competitive Bid
     Quote Request;

          (ii)  acceptance of offers may only be made on the basis of ascending
     Competitive Bid Margins or Competitive Bid Rates, as the case may be, and

          (iii)  the Borrower may not accept any offer that is described in
     subsection 4.5(c) or that otherwise fails to comply with the requirements
     of this Agreement.

The Administrative Agent shall promptly notify each Bank which submitted a
Competitive Bid Quote of the Borrower's acceptance or non-acceptance thereof. 
At the request of any Bank which submitted a Competitive Bid Quote and with the
consent of the Borrower, the Administrative Agent will promptly notify all Banks
which submitted Competitive Bid Quotes of (a) the aggregate principal amount of,
and (b) the range of Competitive Bid Rates or Competitive Bid Margins of, the
accepted Competitive Bid Loans for each requested Interest Period.

     SECTION 4.8.  ALLOCATION BY ADMINISTRATIVE AGENT.  If offers are made by 
two or more Banks with the same Competitive Bid Margin or Competitive Bid 
Rate, as the case may be, for a greater aggregate principal amount than the 
amount in respect of which offers are accepted for the related Interest 
Period, the principal amount of Competitive Bid Loans in respect of which 
such offers are accepted shall be allocated by the Administrative Agent among 
such Banks as nearly as possible (in such multiples, not less than 
$1,000,000, as the Administrative Agent may deem appropriate) in proportion 
to the aggregate principal amounts of such offers.  Determination by the 
Administrative Agent of the amounts of Competitive Bid Loans shall be 
conclusive in the absence of manifest error.

     SECTION 4.9.  FUNDING OF COMPETITIVE BID LOANS.  If, on or prior to the 
Drawdown Date of any Competitive Bid Loan, the Total Commitment has not 
terminated in full and if, on such Drawdown Date, the applicable conditions 
of Sections 11 and 12 hereof are satisfied, the Bank or Banks whose offers 
the Borrower has accepted will fund each Competitive Bid Loan so accepted.  
Such Bank or Banks will make such Competitive Bid Loans by crediting the 
Administrative Agent for further credit to the Borrower's specified account 
with the Administrative Agent, in immediately available funds not later than 
1:00 p.m. (New York time) on such Drawdown Date.

                                    -31-
<PAGE>

     SECTION 4.10.  FUNDING LOSSES.  If, after acceptance of any Competitive 
Bid Quote pursuant to Section 4, the Borrower (i) fails to borrow any 
Competitive Bid Loan so accepted on the date specified therefor, or (ii) 
repays the outstanding amount of the Competitive Bid Loan prior to the last 
day of the Interest Period relating thereto, the Borrower shall indemnify the 
Bank making such Competitive Bid Quote or funding such Competitive Bid Loan 
against any loss or expense incurred by reason of the liquidation or 
reemployment of deposits or other funds acquired by such Bank to fund or 
maintain such unborrowed Competitive Bid Loans, including, without limitation 
compensation as provided in Section 6.7.

     SECTION 4.11.  REPAYMENT OF COMPETITIVE BID LOANS; INTEREST.  The 
principal of each Competitive Bid Loan shall become absolutely due and 
payable by the Borrower on the last day of the Interest Period relating 
thereto, and the Borrower hereby absolutely and unconditionally promises to 
pay to the Administrative Agent for the account of the relevant Banks at or 
before 1:00 p.m. (New York time) on the last day of the Interest Periods 
relating thereto the principal amount of all such Competitive Bid Loans, plus 
interest thereon at the applicable Competitive Bid Rates.  The Competitive 
Bid Loans shall bear interest at the rate per annum specified in the 
applicable Competitive Bid Quotes.  Interest on the Competitive Bid Loans 
shall be payable (a) on the last day of the applicable Interest Periods, and 
if any such Interest Period is longer than three months, also on the last day 
of the third month following the commencement of such Interest Period, and 
(b) on the Revolving Credit Maturity Date for all Revolving Credit Loans.  
Subject to the terms of this Agreement, the Borrower may make Competitive Bid 
Quote Requests with respect to new borrowings of any amounts so repaid prior 
to the Revolving Credit Maturity Date.

     SECTION 5.  THE TERM LOAN.  

     SECTION 5.1.  CONVERSION OF REVOLVING CREDIT LOANS; THE TERM LOAN.  
Subject to the terms and conditions set forth in this Agreement, including, 
without limitation, the satisfaction of the conditions set forth in Section 
12 hereof and the execution and delivery by the Borrower of the Term Notes to 
the Banks, on the Revolving Credit Maturity Date the aggregate amount of the 
outstanding Revolving Credit Loans at such date shall be converted into a 
Term Loan in the aggregate principal amount equal to the aggregate 
outstanding principal balance of the Revolving Credit Loans on such date, 
held severally by the Banks in accordance with their Commitment Percentages 
and the Commitments hereunder shall terminate.  The Term Loan outstanding 
after conversion shall be evidenced by the separate Term Notes (the "Term 
Notes") of the Borrower payable to the order of each Bank, each dated as of 
the Revolving Credit Maturity Date and in substantially the form of EXHIBIT L 
hereto, completed with appropriate insertions.  On the Revolving Credit 
Maturity Date, the Borrower shall pay to the Administrative Agent for the PRO 
RATA accounts of the Banks, all interest accrued to such date on the 
Revolving Credit Loans any Facility Fees, Utilization Fees and other fees 
payable to the Administrative Agent and the Banks hereunder and, as soon as 
reasonably practicable after such payment, each Bank shall surrender to the 
Borrower its Revolving Credit Notes against receipt of its Term Note 
evidencing the amount of the outstanding Revolving Credit Loans so converted. 
The term-out option granted herein may be exercised only once (either on the 
Initial Maturity Date or the extended Revolving Credit Maturity Date) and 
must term out all then existing Revolving Credit Loans.

                                    -32-
<PAGE>

     SECTION 5.2.  THE TERM NOTES.  Each Term Note shall represent the 
obligation of the Borrower to pay to such Bank the principal amount of the 
Term Loan evidenced by the Term Note plus interest accrued thereon, as set 
forth below.  The Borrower irrevocably authorizes each Bank to make or cause 
to be made a notation on such Bank's Term Note Record reflecting the original 
principal amount of such Bank's Commitment Percentage of the Term Loan and, 
at or about the time of such Bank's receipt of any principal payment on such 
Bank's Term Note, an appropriate notation on such Bank's Term Note Record 
reflecting such payment.  The aggregate unpaid amount set forth on such 
Bank's Term Note Record shall be prima facie evidence of the principal amount 
thereof owing and unpaid to such Bank, but the failure to record, or any 
error in so recording, any such amount on such Bank's Term Note Record shall 
not affect the obligations of the Borrower hereunder or under any Term Note 
to make payments of principal of and interest on any Term Note when due.

     SECTION 5.3.  REPAYMENTS OF THE TERM LOAN.  The Borrower promises to pay 
to the Administrative Agent for the account of the Banks the principal amount 
of the Term Loan on the Term Loan Maturity Date in an amount equal to the 
unpaid balance of the Term Loan.

     SECTION 5.4.  OPTIONAL PREPAYMENT OF TERM LOAN.  The Borrower shall have 
the right at any time to prepay the Term Loans on or before the Term Loan 
Maturity Date, as a whole, or in part, upon not less than one (1) Business 
Day prior written notice to the Administrative Agent, without premium or 
penalty, PROVIDED that (a) each partial prepayment shall be in the principal 
amount of $5,000,000 or an integral multiple thereof, (b) any portion of any 
Eurodollar Rate Loan which has been prepaid on any day other than the last 
day of the Interest Period relating thereto shall be subject to the payment 
by the Borrower of any applicable costs associated with such prepayment as 
set forth in Section 2.11 hereof, and (c) each partial prepayment shall be 
allocated among the Banks, in proportion, as nearly as practicable, to the 
respective outstanding amount of each Bank's Term Note, with adjustments to 
the extent practicable to equalize any prior prepayments not exactly in 
proportion. Any prepayment of principal of the Term Loan shall include all 
interest accrued on such amount to the date of prepayment.  No amount repaid 
with respect to the Term Loan may be reborrowed.

     SECTION 5.5.  INTEREST ON TERM LOAN.  
     
          SECTION 5.5.1.  NOTIFICATION BY BORROWER.  The Borrower shall notify 
     the Administrative Agent, such notice to be irrevocable, at least three 
     (3) Eurodollar Business Days prior to the Drawdown Date of the Term Loan 
     if all or any portion of the Term Loan is to be a Eurodollar Rate Loan.  
     After the Term Loan has been made, the provisions of Section 2 shall apply 
     MUTATIS MUTANDIS with respect to all or any portion of the Term Loan so 
     that the Borrower may have the same interest rate options with respect to 
     all or any portion of the Term Loan as it would be entitled to with 
     respect to the Syndicated Loans.

          SECTION 5.5.2.  AMOUNTS, ETC.  Any portion of the Term Loan which 
     is a Eurodollar Loan relating to any Interest Period shall be in the 
     amount of $5,000,000 or a whole multiple or $1,000,000 in excess thereof. 
     No Interest Period relating to the Term Loan or any portion thereof which 
     is a Eurodollar Loan shall extend beyond the Term Loan Maturity Date.

                                    -33-
<PAGE>

     SECTION 6.  PROVISIONS RELATING TO ALL LOANS AND LETTERS OF CREDIT.

     SECTION 6.1.  PAYMENTS.

          (a)  All payments of principal, interest, Reimbursement Obligations,
     fees (other than the Issuance Fee) and any other amounts due hereunder or
     under any of the other Loan Documents shall be made to the Administrative
     Agent at its Head Office in immediately available funds by 11:00 a.m. (New
     York time) on any due date.  Subject to the provisions of Section 30, if a
     payment is received by the Administrative Agent at or before 1:00 p.m. (New
     York time) on any Business Day, the Administrative Agent shall on the same
     Business Day transfer in immediately available funds, as applicable, to (1)
     each of the Banks, their pro rata portion of such payment in accordance
     with their respective Commitment Percentages, in the case of payments with
     respect to Syndicated Loans, Letters of Credit and the Term Loan, (2) MGT
     in the case of payments with respect to Swing Line Loans, and (3) the
     appropriate Bank(s), in the case of payments with respect to Competitive
     Bid Loans.  If such payment is received by the Administrative Agent after
     1:00 p.m. (New York time) on any Business Day, such transfer shall be made
     by the Administrative Agent to the applicable Bank(s) on the next Business
     Day.  In the event that the Administrative Agent fails to make such
     transfer to any Bank as set forth above, the Administrative Agent shall pay
     to such Bank on demand an amount equal to the product of (i) the average,
     computed for the period referred to in clause (iii) below, of the weighted
     average interest rate paid by such Bank for funds acquired by such Bank
     during each day included in such period, TIMES (ii) the amount (A) equal to
     such Bank's Commitment Percentage of such payment in the case of payments
     under clause (1) above, or (B) of such payment to which such Bank is
     entitled in the case of payments with respect to Competitive Bid Loans and
     Swing Line Loans, TIMES (iii) a fraction, the numerator of which is the
     number of days that elapse from and including the date of payment to and
     including the date on which the amount due to such Bank shall become
     immediately available to such Bank, and the denominator of which is 365.  A
     statement of such Bank submitted to the applicable Administrative Agent
     with respect to any amounts owing under this paragraph shall be PRIMA FACIE
     evidence of the amount due and owing to such Bank by the Administrative
     Agent.

          (b)  Each Bank that is not incorporated or organized under the laws of
     the United States of America or a state thereof or the District of Columbia
     (a "Non-U.S. Bank") agrees that, prior to the first date on which any
     payment is due to it hereunder, it will deliver to the Borrower and the
     Administrative Agent two duly completed copies of United States Internal
     Revenue Service Form 1001 or 4224 or successor applicable form, as the case
     may be, certifying in each case that such Non-U.S. Bank is entitled to
     receive payments under this Agreement and the Notes payable to it, without
     deduction or withholding of any United States federal income taxes.  Each
     Non-U.S. Bank that so delivers a Form 1001 or 4224 pursuant to the
     preceding sentence further undertakes to deliver to each of the Borrower
     and the Administrative Agent two further copies of Form 1001 or 4224 or
     successor applicable form, or other manner of certification, as the case
     may be, on or before the date that any such letter or form expires or
     becomes obsolete or

                                    -34-
<PAGE>

     after the occurrence of any event requiring a change in the most recent 
     form previously delivered by it to the Borrower, and such extensions or 
     renewals thereof as may reasonably be requested by the Borrower, certifying
     in the case of a Form 1001 or 4224 that such Non-U.S. Bank is entitled to 
     receive payments under this Agreement and the Notes without deduction or 
     withholding of any United States federal income taxes, unless in any such 
     case an event (including, without limitation, any change in treaty, law 
     or regulation) has occurred prior to the date on which any such delivery 
     would otherwise be required which renders all such forms inapplicable 
     or which would prevent such Non-U.S. Bank from duly completing and 
     delivering any such form with respect to it and such Non-U.S. Bank
     advises the Borrower that it is not capable of receiving payments without
     any deduction or withholding of United States federal income tax.

          (c)  The Borrower shall not be required to pay any additional amounts
     to any Non-U.S. Bank in respect of United States Federal withholding tax
     pursuant to Section 18 to the extent that (i) the obligation to withhold
     amounts with respect to United States Federal withholding tax existed on
     the date such Non-U.S. Bank became a party to this Agreement or, with
     respect to payments to a different lending office designated by the Non-
     U.S. Bank as its applicable lending office (a "New Lending Office"), the
     date such Non-U.S. Bank designated such New Lending Office with respect to
     a Loan; provided, however, that this clause (i) shall not apply to any
     transferee or New Lending Office as a result of an assignment, transfer or
     designation made at the request of the Borrower; and provided further,
     however, that this clause (i) shall not apply to the extent the indemnity
     payment or additional amounts any transferee, or Bank through a New Lending
     Office, would be entitled to receive without regard to this clause (i) do
     not exceed the indemnity payment or additional amounts that the Person
     making the assignment or transfer to such transferee, or Bank making the
     designation of such New Lending Office, would have been entitled to receive
     in the absence of such assignment, transfer or designation; or (ii) the
     obligation to pay such additional amounts would not have arisen but for a
     failure by such Non-U.S. Bank to comply with the provisions of paragraph
     (c) above.

          (d)  Notwithstanding the foregoing, each Bank agrees to use reasonable
     efforts (consistent with legal and regulatory restrictions) to change its
     lending office to avoid or to minimize any amounts otherwise payable under
     Section 18 in each case solely if such change can be made in a manner so
     that such Bank, in its sole determination, suffers no legal, economic or
     regulatory disadvantage.

     SECTION 6.2.  COMPUTATIONS.  Except as otherwise expressly provided 
herein, all computations of interest, Facility Fees, Utilization Fees, Letter 
of Credit Fees or other fees shall be based on a 360-day year and paid for 
the actual number of days elapsed, except that computations based on the 
Administrative Agent's "prime rate" shall be based on a 365 or 366, as 
applicable, day year and paid for the actual number of days elapsed.  
Whenever a payment hereunder or under any of the other Loan Documents becomes 
due on a day that is not a Business Day, the due date for such payment shall 
be extended to the next succeeding Business Day, and interest shall accrue 
during such extension; PROVIDED THAT for any Interest Period for any 
Eurodollar Loan if such next succeeding Business Day falls in the next 
succeeding calendar month or after the Revolving 

                                      -35-
<PAGE>

Credit Maturity Date, or Term Loan Maturity Date, as the case may be, it 
shall be deemed to end on the next preceding Business Day.

     SECTION 6.3.  ILLEGALITY; INABILITY TO DETERMINE EURODOLLAR RATE.  
Notwithstanding any other provision of this Agreement (other than Section 
6.9), if (a) the introduction of, any change in, or any change in the 
interpretation of, any law or regulation applicable to any Bank or the 
Administrative Agent shall make it unlawful, or any central bank or other 
governmental authority having jurisdiction thereof shall assert that it is 
unlawful, for any Bank or the Administrative Agent to perform its obligations 
in respect of any Eurodollar Loans, or (b) if any Bank or the Administrative 
Agent, as applicable, shall reasonably determine with respect to Eurodollar 
Loans that (i) by reason of circumstances affecting any Eurodollar interbank 
market, adequate and reasonable methods do not exist for ascertaining the 
Eurodollar Rate which would otherwise be applicable during any Interest 
Period, or (ii) deposits of Dollars in the relevant amount for the relevant 
Interest Period are not available to such Bank or the Administrative Agent in 
any Eurodollar interbank market, or (iii) the Eurodollar Rate does not or 
will not accurately reflect the cost to the Bank or the Administrative Agent 
of obtaining or maintaining the Eurodollar Loans during any Interest Period, 
then such Bank or the Administrative Agent shall promptly give telephonic, 
telex or cable notice of such determination to the Borrower (which notice 
shall be conclusive and binding upon the Borrower).  Upon such notification 
by the Bank or the Administrative Agent, the obligation of the Banks and the 
Administrative Agent to make Eurodollar Loans shall be suspended until the 
Banks or the Administrative Agent, as the case may be, determine that such 
circumstances no longer exist, and to the extent permitted by law the 
outstanding Eurodollar Loans shall continue to bear interest at the 
applicable rate based on the Eurodollar Rate until the end of the applicable 
Interest Period, and thereafter shall be deemed converted to Base Rate Loans 
in equal principal amounts to such former Eurodollar Loans.

     SECTION 6.4.  ADDITIONAL COSTS, ETC.  If any present or future 
applicable law (which expression, as used herein, includes statutes, rules 
and regulations thereunder and interpretations thereof by any competent court 
or by any governmental or other regulatory body or official charged with the 
administration or the interpretation thereof and requests, directives, 
instructions and notices at any time or from time to time hereafter made upon 
or otherwise issued to any Bank by any central bank or other fiscal, monetary 
or other authority, whether or not having the force of law) shall:

          (a)  subject such Bank to any tax, levy, impost, duty, charge, fee,
     deduction or withholding of any nature with respect to this Agreement, the
     other Loan Documents, such Bank's Commitment or the Loans (other than taxes
     based upon or measured by the income or profits of such Bank imposed by the
     jurisdiction of its incorporation or organization, or the location of its
     lending office); or

          (b)  materially change the basis of taxation (except for changes in
     taxes on income or profits of such Bank imposed by the jurisdiction of its
     incorporation or organization, or the location of its lending office) of
     payments to such Bank of the principal or of the interest on any Loans or
     any other amounts payable to such Bank under this Agreement or the other
     Loan Documents; or

                                      -36-
<PAGE>

          (c)  except as provided in Section 6.5 or as otherwise reflected in
     the Base Rate, the Eurodollar Rate, or the Competitive Bid Rate, impose or
     increase or render applicable (other than to the extent specifically
     provided for elsewhere in this Agreement) any special deposit, reserve,
     assessment, liquidity, capital adequacy or other similar requirements
     (whether or not having the force of law) against assets held by, or
     deposits in or for the account of, or loans by, or commitments of, an
     office of any Bank with respect to this Agreement, the other Loan
     Documents, such Bank's Commitment or the Loans; or

          (d)  impose on such Bank any other conditions or requirements with
     respect to this Agreement, the other Loan Documents, the Loans, such Bank's
     Commitment or any class of loans or commitments of which any of the Loans
     or such Bank's Commitment forms a part, and the result of any of the
     foregoing is:

               (i)  to increase the cost to such Bank of making, funding,
          issuing, renewing, extending or maintaining the Loans or such Bank's
          Commitment or issuing or participating in Letters of Credit;

               (ii) to reduce the amount of principal, interest or other amount
          payable to such Bank hereunder on account of such Bank's Commitment,
          the Loans or the Reimbursement Obligations; or

               (iii)     to require such Bank to make any payment or to forego
          any interest or other sum payable hereunder, the amount of which
          payment or foregone interest or other sum is calculated by reference
          to the gross amount of any sum receivable or deemed received by such
          Bank from the Borrower hereunder,

          then, and in each such case, the Borrower will, upon demand made by
     such Bank at any time and from time to time as often as the occasion
     therefore may arise (which demand shall be accompanied by a statement
     setting forth the basis of such demand which shall be conclusive absent
     manifest error), pay such reasonable additional amounts as will be
     sufficient to compensate such Bank for such additional costs, reduction,
     payment or foregone interest or other sum.

     SECTION 6.5.  CAPITAL ADEQUACY.  If any Bank shall have determined that, 
after the date hereof, (i) the adoption of any applicable law, rule or 
regulation regarding capital adequacy, or any change in any such law, rule, 
or regulation, or any change in the interpretation or administration thereof 
by any governmental authority, central bank or comparable agency charged with 
the interpretation or administration thereof, or any request or directive 
regarding capital adequacy (whether or not having the force of law) of any 
such authority, central bank or comparable agency, or (ii) compliance by such 
Bank or the Administrative Agent or any corporation controlling such Bank or 
the Administrative Agent with any law, governmental rule, regulation, policy, 
guideline or directive (whether or not having the force of law and including 
any determination by such central bank or other governmental authority that 
for purposes of capital adequacy requirements the Commitments hereunder do 
not constitute commitments with an original maturity of one year or less) of 
any such entity regarding capital adequacy, has or would 

                                      -37-
<PAGE>

have the effect of reducing the rate of return on capital of such Bank (or 
any corporation controlling such Bank) as a consequence of such Bank's 
obligations hereunder to a level below that which such Bank (or any 
corporation controlling such Bank) could have achieved but for such adoption, 
change, request or directive (taking into consideration its policies with 
respect to capital adequacy) by an amount deemed by such Bank to be material, 
then from time to time, within 15 days after demand by such Bank, the 
Borrower shall pay to such Bank such additional amount or amounts as will, in 
such Bank's reasonable determination, fairly compensate such Bank (or any 
corporation controlling such Bank) for such reduction.  Each Bank shall 
allocate such cost increases among its customers in good faith and on an 
equitable basis.

     SECTION 6.6.  CERTIFICATE.  A certificate setting forth the additional 
amounts payable pursuant to Section 6.4 or Section 6.5 and a reasonable 
explanation of such amounts which are due, submitted by any Bank to the 
Borrower, shall be conclusive, absent manifest error, that such amounts are 
due and owing.

     SECTION 6.7.  EURODOLLAR AND COMPETITIVE BID INDEMNITY.  The Borrower 
agrees to indemnify the Banks and the Administrative Agent and to hold them 
harmless from and against any reasonable loss, cost or expense that any such 
Bank and the Administrative Agent may sustain or incur as a consequence of 
(a) the default by the Borrower in payment of the principal amount of or any 
interest on any Eurodollar Loans or Competitive Bid Loans as and when due and 
payable, including any such loss or expense arising from interest or fees 
payable by any Bank or the Administrative Agent to lenders of funds obtained 
by it in order to maintain its Eurodollar Loans or Competitive Bid Loans, (b) 
the default by the Borrower in making a borrowing of a Eurodollar Loan or 
Competitive Bid Loan or conversion of a Eurodollar Loan or a prepayment of a 
Eurodollar or Competitive Bid Loan other than pursuant to Section 2.5(b) 
after the Borrower has given (or is deemed to have given) a Syndicated Loan 
Request, a notice pursuant to Section 2.7 or a Notice of Acceptance/Rejection 
of Competitive Bid Quote(s), or a notice pursuant to Section 2.10, and (c) 
the making of any payment of a Eurodollar Loan or Competitive Bid Loan, or 
the making of any conversion of any Eurodollar Loan to a Base Rate Loan on a 
day that is not the last day of the applicable Interest Period with respect 
thereto. Such loss, cost, or reasonable expense shall include an amount equal 
to the excess, if any, as reasonably determined by each Bank of (i) its cost 
of obtaining the funds for (A) the Eurodollar Loan being paid, prepaid, 
converted, not converted, reallocated, or not borrowed, as the case may be 
(based on the Eurodollar Rate), or (B) the Competitive Bid Loan being paid, 
prepaid, or not borrowed, as the case may be (based on the Competitive Bid 
Rate) for the period from the date of such payment, prepayment, conversion, 
or failure to borrow or convert, as the case may be, to the last day of the 
Interest Period for such Loan (or, in the case of a failure to borrow, the 
Interest Period for the Loan which would have commenced on the date of such 
failure to borrow) over (ii) the amount of interest (as reasonably determined 
by such Bank) that would be realized by such Bank in reemploying the funds so 
paid, prepaid, converted, or not borrowed, converted, or prepaid for such 
period or Interest Period, as the case may be, which determinations shall be 
conclusive absent manifest error.

     SECTION 6.8.  INTEREST ON OVERDUE AMOUNTS.  Overdue principal and (to 
the extent permitted by applicable law) interest on the Loans and all other 
overdue amounts payable hereunder or under any of the other Loan Documents 
shall bear interest compounded monthly and payable on 

                                      -38-
<PAGE>

demand at a rate per annum equal to the Base Rate PLUS 2%, until such amount 
shall be paid in full (after as well as before judgment).

     SECTION 6.9.  INTEREST LIMITATION.  Notwithstanding any other term of 
this Agreement or the Notes, any other Loan Document or any other document 
referred to herein or therein, the maximum amount of interest which may be 
charged to or collected from any Person liable hereunder or under the Notes 
by any Bank shall be absolutely limited to, and shall in no event exceed, the 
maximum amount of interest which could lawfully be charged or collected by 
such Bank under applicable laws (including, to the extent applicable, the 
provisions of Section 5197 of the Revised Statutes of the United States of 
America, as amended, and 12 U.S.C. Section 85, as amended).

     SECTION 6.10.  REASONABLE EFFORTS TO MITIGATE.  Each Bank agrees that as 
promptly as practicable after it becomes aware of the occurrence of an event 
or the existence of a condition that would cause it to be affected under 
Sections 6.3, 6.4 or 6.5, such Bank will give notice thereof to the Borrower, 
with a copy to the Administrative Agent and, to the extent so requested by 
the Borrower and not inconsistent with such Bank's internal policies, such 
Bank shall use reasonable efforts and take such actions as are reasonably 
appropriate if as a result thereof the additional moneys which would 
otherwise be required to be paid to such Bank pursuant to such sections would 
be materially reduced, or the illegality or other adverse circumstances which 
would otherwise require a conversion of such Loans or result in the inability 
to make such Loans pursuant to such sections would cease to exist, and in 
each case if, as determined by such Bank in its sole discretion, the taking 
such actions would not adversely affect such Loans or such Bank or otherwise 
be disadvantageous to such Bank.

     SECTION 6.11.  REPLACEMENT OF BANKS.  If any Bank (an "Affected Bank") 
(i) makes demand upon the Borrower for (or if the Borrower is otherwise 
required to pay) amounts pursuant to Sections 6.4 or 6.5, (ii) is unable to 
make or maintain Eurodollar Loans as a result of a condition described in 
Section 6.3, (iii) defaults in its obligation to make Loans or to participate 
in Letters of Credit in accordance with the terms of this Agreement (such 
Bank being referred to as a "Defaulting Bank") or (iv) fails to agree to 
extend the Revolving Credit Maturity Date pursuant to Section 2.10, the 
Borrower may, within 90 days of receipt of such demand, notice (or the 
occurrence of such other event causing the Borrower to be required to pay 
such compensation or causing Section 6.3 to be applicable), or default, as 
the case may be, by notice (a "Replacement Notice") in writing to the 
Administrative Agent and such Affected Bank (A) request the Affected Bank to 
cooperate with the Borrower in obtaining a replacement bank satisfactory to 
the Administrative Agent and the Borrower (the "Replacement Bank") as 
provided herein, but none of such Banks shall be under an obligation to find 
a Replacement Bank; (B) request the non-Affected Banks to acquire and assume 
all of the Affected Bank's Loans and Commitment, and to participate in 
Letters of Credit as provided herein, but none of such Banks shall be under 
an obligation to do so; or (C) designate a Replacement Bank reasonably 
satisfactory to the Administrative Agent.  If any satisfactory Replacement 
Bank shall be obtained, and/or any of the non-Affected Banks shall agree to 
acquire and assume all of the Affected Bank's Loans and Commitment, and to 
participate in Letters of Credit then such Affected Bank shall, so long as no 
Event of Default shall have occurred and be continuing, assign, in accordance 
with Section 21, all of its Commitment, Loans, Notes and other rights and 
obligations under this Agreement and all other Loan 

                                      -39-
<PAGE>

Documents to such Replacement Bank or non-Affected Banks, as the case may be, 
in exchange for payment of the principal amount so assigned and all interest 
and fees accrued on the amount so assigned, plus all other Obligations then 
due and payable to the Affected Bank; PROVIDED, HOWEVER, that (x) such 
assignment shall be without recourse, representation or warranty and shall be 
on terms and conditions reasonably satisfactory to such Affected Bank and 
such Replacement Bank and/or non-Affected Banks, as the case may be, and (y) 
prior to any such assignment, the Borrower shall have paid to such Affected 
Bank all amounts properly demanded and unreimbursed under Sections 6.4, 6.5 
and 6.7.  Upon the effective date of such assignment, the Borrower shall 
issue replacement Notes to such Replacement Bank and/or non-Affected Banks, 
as the case may be, and such Replacement Bank shall become a "Bank" for all 
purposes under this Agreement and the other Loan Documents.

     SECTION 6.12.  ADVANCES BY ADMINISTRATIVE AGENT.  The Administrative 
Agent may (unless earlier notified to the contrary by any Bank by 12:00 noon 
(New York time) one (1) Business Day prior to any Drawdown Date) assume that 
each Bank has made available (or will before the end of such Business Day 
make available) to the Administrative Agent the amount of such Bank's 
Commitment Percentage with respect to the Loans (or, in the case of 
Competitive Bid Loans, the amount of such Bank's accepted offers of such 
Loans, if any) to be made on such Drawdown Date, and the Administrative Agent 
may (but shall not be required to), in reliance upon such assumption, make 
available to the Borrower a corresponding amount.  If any Bank makes such 
amount available to the Administrative Agent on a date after such Drawdown 
Date, such Bank shall pay the Administrative Agent on demand an amount equal 
to the product of (i) the average, computed for the period referred to in 
clause (iii) below, of the weighted average annual interest rate paid by the 
Administrative Agent for federal funds acquired by the Administrative Agent 
during each day included in such period TIMES (ii) the amount equal to such 
Bank's Commitment Percentage of such Syndicated Loan (or, in the case of 
Competitive Bid Loans and Swing Line Loans, the amount of such Bank's 
accepted offer of such Competitive Bid Loans, if any, and portion of such 
Swing Line Loans) or the Term Loan, as the case may be, TIMES (iii) a 
fraction, the numerator of which is the number of days that elapse from and 
including such Drawdown Date to but not including the date on which the 
amount equal to such Bank's Commitment Percentage of such Loans, or the 
amount of such Bank's accepted offers of such Competitive Bid Loans, if any, 
and portion of Swing Line Loans, shall become immediately available to the 
Administrative Agent, and the denominator of which is 365.  A statement of 
the Administrative Agent submitted to such Bank with respect to any amounts 
owing under this paragraph shall be PRIMA FACIE evidence of the amount due 
and owing to the Administrative Agent by such Bank.  If such amount is not in 
fact made available to the Administrative Agent by such Bank within three (3) 
Business Days of such Drawdown Date, the Administrative Agent shall be 
entitled to recover such amount from such Borrower, with interest thereon at 
the applicable rate per annum.

     SECTION 7.  REPRESENTATIONS AND WARRANTIES.  The Borrower (and the 
Guarantor, where applicable) represents and warrants to the Banks that:

     SECTION 7.1.  CORPORATE AUTHORITY.


                                      -40-
<PAGE>

          (a)  INCORPORATION; GOOD STANDING.  The Borrower and each of its
     Subsidiaries (i) is a corporation duly organized, validly existing and in
     good standing under the laws of its respective jurisdiction of
     incorporation, (ii) has all requisite corporate power to own its property
     and conduct its business as now conducted and as presently contemplated,
     and (iii) is in good standing as a foreign corporation and is duly
     authorized to do business in each jurisdiction in which its property or
     business as presently conducted or contemplated makes such qualification
     necessary, except where a failure to be so qualified would not have a
     material adverse effect on the business, assets or financial condition of
     the Borrower and its Subsidiaries as a whole.

          (b)  AUTHORIZATION.  The execution, delivery and performance of its
     Loan Documents and the transactions contemplated hereby and thereby (i) are
     within the corporate authority of the Borrower and the Guarantor, (ii) have
     been duly authorized by all necessary corporate proceedings on the part of
     each of the Borrower and the Guarantor, (iii) do not conflict with or
     result in any breach or contravention of any provision of law, statute,
     rule or regulation to which any of the Borrower or the Guarantor or any of
     their Subsidiaries is subject or any judgment, order, writ, injunction,
     license or permit applicable to the Borrower, the Guarantor or any of their
     Subsidiaries so as to materially adversely affect the assets, business or
     any activity of the Borrower, the Guarantor and their Subsidiaries as a
     whole, and (iv) do not conflict with any provision of the corporate charter
     or bylaws of the Borrower, the Guarantor or any Subsidiary or any agreement
     or other instrument binding upon the Borrower, the Guarantor or any of
     their Subsidiaries.

          (c)  ENFORCEABILITY.  The execution, delivery and performance of the
     Loan Documents by the Borrower and the Guarantor will result in valid and
     legally binding obligations of the Borrower and the Guarantor enforceable
     against them in accordance with the respective terms and provisions hereof
     and thereof, except as enforceability is limited by bankruptcy, insolvency,
     reorganization, moratorium or other laws relating to or affecting generally
     the enforcement of creditors' rights and except to the extent that
     availability of the remedy of specific performance or injunctive relief is
     subject to the discretion of the court before which any proceeding therefor
     may be brought.

     SECTION 7.2.  GOVERNMENTAL APPROVALS.  The execution, delivery and 
performance of the Loan Documents by the Borrower and the Guarantor and the 
consummation by the Borrower and the Guarantor of the transactions 
contemplated hereby and thereby do not require any approval or consent of, or 
filing with, any governmental agency or authority other than those already 
obtained and those required after the date hereof in connection with the 
Borrower's and its Subsidiaries' performance of their covenants contained in 
Sections 8, 9 and 10 hereof.

     SECTION 7.3.  TITLE TO PROPERTIES; LEASES.  The Borrower and its 
Subsidiaries own all of the assets reflected in the consolidated balance 
sheet as at the Interim Balance Sheet Date or acquired since that date 
(except property and assets operated under capital leases or sold or 
otherwise disposed of in the ordinary course of business since that date), 
subject to no mortgages, 

                                      -41-
<PAGE>

Capitalized Leases, conditional sales agreements, title retention agreements, 
liens or other encumbrances except Permitted Liens.

     SECTION 7.4.  FINANCIAL STATEMENTS; SOLVENCY.  

          (a)  There have been furnished to the Banks consolidated balance
     sheets of the Borrower and its Subsidiaries and Old WMI and its
     Subsidiaries dated the Balance Sheet Date and consolidated statements of
     operations for the fiscal periods then ended, certified by the Accountants.
     In addition, there have been furnished to the Banks consolidated balance
     sheets of the Borrower and its Subsidiaries, and Old WMI and its
     Subsidiaries, dated the Interim Balance Sheet Date and the related
     consolidated statements of operation for the fiscal quarter ending on the
     Interim Balance Sheet Date.  All said balance sheets and statements of
     operations have been prepared in accordance with GAAP (but, in the case of
     any of such financial statements which are unaudited, only to the extent
     GAAP is applicable to interim unaudited reports), fairly present the
     financial condition of the Borrower and its Subsidiaries on a consolidated
     basis, or Old WMI and its Subsidiaries on a consolidated basis, as at the
     close of business on the dates thereof and the results of operations for
     the periods then ended, subject, in the case of unaudited interim financial
     statements, to changes resulting from audit and normal year-end adjustments
     and to the absence of complete footnotes.  There are no contingent
     liabilities of the Borrower and its Subsidiaries or Old WMI and its
     Subsidiaries involving material amounts, known to the officers of the
     Borrower or Old WMI which have not been disclosed in said balance sheets
     and the related notes thereto or otherwise in writing to the Banks.

          (b)  The Borrower and its Subsidiaries on a consolidated basis and Old
     WMI and its Subsidiaries on a consolidated basis (both before and after
     giving effect to the transactions contemplated by this Agreement including
     the WMI Merger) are solvent (i.e., they have assets having a fair value in
     excess of the amount required to pay their probable liabilities on their
     existing debts as they become absolute and matured) and have, and expect to
     have, the ability to pay their debts from time to time incurred in
     connection therewith as such debts mature.

     SECTION 7.5.  NO MATERIAL CHANGES, ETC.  Since the Interim Balance Sheet 
Date, there have occurred no material adverse changes in the consolidated 
financial condition, business or assets of the Borrower and its Subsidiaries, 
taken together, or Old WMI and its Subsidiaries, taken together, as the case 
may be, as shown on or reflected in the consolidated balance sheets of the 
Borrower and its Subsidiaries or Old WMI and its Subsidiaries as at the 
Interim Balance Sheet Date, or the consolidated statements of income for the 
period then ended other than changes in the ordinary course of business which 
have not had any material adverse effect either individually or in the 
aggregate on the financial condition, business or assets of the Borrower and 
its Subsidiaries, taken together, or Old WMI and its Subsidiaries, taken 
together, as the case may be.  Since the Interim Balance Sheet Date, there 
have not been any Distributions (including Distributions by the Borrower and 
Old WMI) other than as permitted by Section 9.5 hereof, except as disclosed 
in the Disclosure Documents.

                                      -42-
<PAGE>

     SECTION 7.6.  FRANCHISES, PATENTS, COPYRIGHTS, ETC.  The Borrower and 
each of its Subsidiaries possess all franchises, patents, copyrights, 
trademarks, trade names, licenses and permits, and rights in respect of the 
foregoing, adequate for the conduct of their business substantially as now 
conducted (other than those the absence of which would not have a material 
adverse effect on the business, operations or financial condition of the 
Borrower and its Subsidiaries as a whole) without known conflict with any 
rights of others other than a conflict which would not have a material 
adverse effect on the financial condition, business or assets of the Borrower 
and its Subsidiaries as a whole.

     SECTION 7.7.  LITIGATION.  Except as set forth on SCHEDULE 7.7 or in the 
Disclosure Documents, there are no actions, suits, proceedings or 
investigations of any kind pending or, to the knowledge of the Borrower or 
any of its Subsidiaries, threatened against the Borrower or any of its 
Subsidiaries before any court, tribunal or administrative agency or board 
which, either in any case or in the aggregate, could reasonably be expected 
to have a material adverse effect on the financial condition, business, or 
assets of the Borrower and its Subsidiaries, considered as a whole, or 
materially impair the right of the Borrower and its Subsidiaries, considered 
as a whole, to carry on business substantially as now conducted, or result in 
any substantial liability not adequately covered by insurance, or for which 
adequate reserves are not maintained on the consolidated balance sheet or 
which question the validity of any of the Loan Documents to which the 
Borrower or any of its Subsidiaries is a party, or any action taken or to be 
taken pursuant hereto or thereto.

     SECTION 7.8.  NO MATERIALLY ADVERSE CONTRACTS, ETC.  Neither the 
Borrower nor any of its Subsidiaries is subject to any charter, corporate or 
other legal restriction, or any judgment, decree, order, rule or regulation 
which in the judgment of the Borrower's or such Subsidiary's officers has or 
could reasonably be expected in the future to have a materially adverse 
effect on the business, assets or financial condition of the Borrower and its 
Subsidiaries, considered as a whole.  Neither the Borrower nor any of its 
Subsidiaries is a party to any contract or agreement which in the judgment of 
the Borrower's or its Subsidiary's officers has or could reasonably be 
expected to have any materially adverse effect on the financial condition, 
business or assets of the Borrower and its Subsidiaries, considered as a 
whole, except as otherwise reflected in adequate reserves as required by GAAP.

     SECTION 7.9.  COMPLIANCE WITH OTHER INSTRUMENTS, LAWS, ETC.  Neither the 
Borrower nor any of its Subsidiaries is (a) violating any provision of its 
charter documents or by-laws or (b) any agreement or instrument to which any 
of them may be subject or by which any of them or any of their properties may 
be bound or any decree, order, judgment, or any statute, license, rule or 
regulation, in a manner which could (in the case of such agreements or such 
instruments) reasonably be expected to result in the imposition of 
substantial penalties or materially and adversely affect the financial 
condition, business or assets of the Borrower and its Subsidiaries, 
considered as a whole.

     SECTION 7.10.  TAX STATUS.  The Borrower and its Subsidiaries have filed 
all federal, state, provincial and territorial income and all other tax 
returns, reports and declarations (or obtained extensions with respect 
thereto) required by applicable law to be filed by them (unless and only 

                                      -43-
<PAGE>

to the extent that the Borrower or such Subsidiary has set aside on its books 
provisions reasonably adequate for the payment of all unpaid and unreported 
taxes as required by GAAP); and have paid all taxes and other governmental 
assessments and charges (other than taxes, assessments and other governmental 
charges imposed by jurisdictions other than the United States, Canada or any 
political subdivision thereof which in the aggregate are not material to the 
financial condition, business or assets of the Borrower or such Subsidiary on 
an individual basis or of the Borrower and its Subsidiaries on a consolidated 
basis) that are material in amount, shown or determined to be due on such 
returns, reports and declarations, except those being contested in good 
faith; and, as required by GAAP, have set aside on their books provisions 
reasonably adequate for the payment of all taxes for periods subsequent to 
the periods to which such returns, reports or declarations apply.  Except to 
the extent contested in the manner permitted in the preceding sentence, there 
are no unpaid taxes in any material amount claimed by the taxing authority of 
any jurisdiction to be due and owing by the Borrower or any Subsidiary, nor 
do the officers of the Borrower or any of its Subsidiaries know of any basis 
for any such claim.

     SECTION 7.11.  NO EVENT OF DEFAULT.  No Default or Event of Default has 
occurred and is continuing.

     SECTION 7.12.  HOLDING COMPANY AND INVESTMENT COMPANY ACTS.  Neither the 
Borrower nor any of its Subsidiaries is a "holding Company", or a "subsidiary 
Company" of a "holding Borrower", or an "affiliate" of a "holding Company", 
as such terms are defined in the Public Utility Holding Company Act of 1935; 
nor is any of them a "registered investment Company", or an "affiliated 
Company" or a "principal underwriter" of a "registered investment Company", 
as such terms are defined in the Investment Company Act of 1940, as amended.

     SECTION 7.13.  ABSENCE OF FINANCING STATEMENTS, ETC.  Except as 
permitted by Section 9.2 of this Agreement, there is no Indebtedness senior 
to the Obligations, and there is no effective financing statement, security 
agreement, chattel mortgage, real estate mortgage or other document filed or 
recorded with any filing records, registry, or other public office, which 
purports to cover, affect or give notice of any present or possible future 
lien on, or security interest in, any assets or property of the Borrower or 
any of its Subsidiaries or right thereunder. 

                                      -44-
<PAGE>

     SECTION 7.14.  EMPLOYEE BENEFIT PLANs.  

               SECTION 7.14.1.  IN GENERAL.  Each Employee Benefit Plan has 
     been maintained and operated in compliance in all material respects 
     with the provisions of ERISA and/or all Applicable Canadian Pension 
     Legislation, as applicable, and, to the extent applicable, the Code, 
     including but not limited to the provisions thereunder respecting 
     prohibited transactions. Promptly upon the request of any Bank or the 
     Administrative Agent, the Borrower will furnish to the Administrative 
     Agent the most recently completed annual report, Form 5500, with all 
     required attachments, and actuarial statement required to be submitted 
     under Section 103(d) of ERISA, with respect to each Guaranteed Pension 
     Plan.  

          SECTION 7.14.2.  TERMINABILITY OF WELFARE PLANS.  Under each 
     Employee Benefit Plan which is an employee welfare benefit plan 
     within the meaning of Section 3(1) or Section 3(2)(B) of ERISA, no
     benefits are due unless the event giving rise to the benefit entitlement
     occurs prior to plan termination (except as required by Title I, Part 6 
     of ERISA) . The Borrower or an ERISA Affiliate, as appropriate, may 
     terminate each such Plan at any time (or at any time subsequent to the 
     expiration of any applicable bargaining agreement) in the discretion of 
     the Borrower or such ERISA Affiliate without liability to any Person.

          SECTION 7.14.3.  GUARANTEED PENSION PLANS.  Each contribution 
     required to be made to a Guaranteed Pension Plan, whether required 
     to be made to avoid the incurrence of an accumulated funding deficiency, 
     the notice or lien provisions of Section 302(f) of ERISA, or otherwise, 
     has been timely made.  No waiver of an accumulated funding deficiency or 
     extension of amortization periods has been received with respect to any 
     Guaranteed Pension Plan.  No liability to the PBGC (other than required 
     insurance premiums, all of which have been paid) has been incurred 
     by the Borrower or any ERISA Affiliate with respect to any Guaranteed 
     Pension Plan and there has not been any ERISA Reportable Event, or 
     any other event or condition which presents a material risk of
     termination of any Guaranteed Pension Plan by the PBGC. Based on the latest
     valuation of each Guaranteed Pension Plan (which in each case occurred
     within twelve months of the date of this representation), and on the
     actuarial methods and assumptions employed for that valuation, the
     aggregate benefit liabilities of all such Guaranteed Pension Plans within
     the meaning of Section 4001 of ERISA did not exceed the aggregate value of
     the assets of all such Guaranteed Pension Plans, disregarding for this
     purpose the benefit liabilities and assets of any Guaranteed Pension Plan
     with assets in excess of benefit liabilities.

          SECTION 7.14.4.  MULTIEMPLOYER PLANS.  Neither the Borrower nor any
     ERISA Affiliate has incurred any material liability (including secondary 
     liability) to any Multiemployer Plan as a result of a complete or partial 
     withdrawal from such Multiemployer Plan under Section 4201 of ERISA or as 
     a result of a sale of assets described in Section 4204 of ERISA.  Neither 
     the Borrower nor any ERISA Affiliate has been notified that any 
     Multiemployer Plan is in reorganization or insolvent under and within 
     the meaning of Section 4241 or Section 4245 of ERISA or that any 
     Multiemployer Plan intends to terminate or has been terminated under 
     Section 4041A of ERISA.

                                      -45-
<PAGE>

     SECTION 7.15.  ENVIRONMENTAL COMPLIANCE.  The Borrower and its 
Subsidiaries have taken all necessary steps to investigate the past and 
present condition and usage of the Real Property and the operations conducted 
by the Borrower and its Subsidiaries and, based upon such diligent 
investigation, have determined that, except as set forth on SCHEDULE 7.15 or 
the Disclosure Documents:

          (a)  Neither the Borrower, its Subsidiaries, nor any operator of their
     properties, is in violation, or alleged violation, of any judgment, decree,
     order, law, permit, license, rule or regulation pertaining to environmental
     matters, including without limitation, those arising under the Resource
     Conservation and Recovery Act ("RCRA"), the Comprehensive Environmental
     Response, Compensation and Liability Act of 1980 as amended ("CERCLA"), the
     Superfund Amendments and Reauthorization Act of 1986 ("SARA"), the Federal
     Clean Water Act, the Federal Clean Air Act, the Toxic Substances Control
     Act, or any applicable international, federal, state, provincial,
     territorial or local statute, regulation, ordinance, order or decree
     relating to health, safety, waste transportation or disposal, or the
     environment (the "Environmental Laws"), which violation, individually or in
     the aggregate, would have a material adverse effect on the business, assets
     or financial condition of the Borrower and its Subsidiaries on a
     consolidated basis.

          (b)  Except with respect to any such matters which individually or in
     the aggregate would not reasonably be expected to have a material adverse
     effect on the business, assets or financial condition of the Borrower and
     its Subsidiaries on a consolidated basis, neither the Borrower nor any of
     its Subsidiaries has received notice from any third party including,
     without limitation: any federal, state, provincial, territorial or local
     governmental authority, (i) that any one of them has been identified by the
     United States Environmental Protection Agency ("EPA") as a potentially
     responsible party under CERCLA with respect to a site listed on the
     National Priorities List, 40 C.F.R. Part 300 Appendix B; (ii) that any
     hazardous waste, as defined by 42 U.S.C. Section 6903(5), any hazardous
     substances as defined by 42 U.S.C. Section 9601(14), any pollutant or
     contaminant as defined by 42 U.S.C. Section 9601(33) or any toxic
     substance, oil or hazardous materials or other chemicals or substances
     regulated by any Environmental Laws, excluding household hazardous waste
     ("Hazardous Substances"), which any one of them has generated, transported
     or disposed of, has been found at any site at which a federal, state,
     provincial, territorial or local agency or other third party has conducted
     or has ordered that the Borrower or any of its Subsidiaries conduct a
     remedial investigation, removal or other response action pursuant to any
     Environmental Law; or (iii) that it is or shall be a named party to any
     claim, action, cause of action, complaint, legal or administrative
     proceeding arising out of any third party's incurrence of costs, expenses,
     losses or damages of any kind whatsoever in connection with the Release of
     Hazardous Substances.

          (c)  (i) No portion of the Real Property or other assets of the
     Borrower and its Subsidiaries has been used for the handling, processing,
     storage or disposal of Hazardous Substances except in accordance with
     applicable Environmental Laws, except as would 

                                     -46-
<PAGE>

     not reasonably be expected to have a material adverse effect on the 
     business, assets or financial condition of the Borrower and its 
     Subsidiaries on a consolidated basis; (ii) in the course of any 
     activities conducted by the Borrower, its Subsidiaries, or operators 
     of the Real Property or other assets of the Borrower and its 
     Subsidiaries, no Hazardous Substances have been generated or are being 
     used on such properties except in accordance with applicable 
     Environmental Laws, except for occurrences that would not have a 
     material adverse effect on the business, assets or financial condition 
     of the Borrower and its Subsidiaries on a consolidated basis; (iii) 
     there have been no unpermitted Releases or threatened Releases of 
     Hazardous Substances on, upon, into or from the Real Property or other 
     assets of the Borrower or its Subsidiaries, which Releases would have 
     a material adverse effect on the value of such properties; (iv) to the 
     best of the Borrower's and its Subsidiaries' knowledge, there have 
     been no Releases on, upon, from or into any real property in the 
     vicinity of the Real Property or other assets of the Borrower or its 
     Subsidiaries which, through soil or groundwater contamination, may 
     have come to be located on, and which would reasonably be expected to 
     have a material adverse effect on the value of, such properties; and 
     (v) in addition, any Hazardous Substances that have been generated on 
     the Real Property or other assets of the Borrower or its Subsidiaries 
     have been transported offsite only by carriers having an 
     identification number issued by the EPA, treated or disposed of only 
     by treatment or disposal facilities maintaining valid permits as 
     required under applicable Environmental Laws, which transporters and 
     facilities have been and are, to the best of the Borower's and its 
     Subsidiaries' knowledge, operating in compliance with such permits and 
     applicable Environmental Laws.
     
          (d)  None of the Real Property or other assets of the Borrower or its
     Subsidiaries or any of the stock (or assets) being acquired with proceeds
     of Loans is or shall be subject to any applicable environmental clean-up
     responsibility law or environmental restrictive transfer law or regulation,
     by virtue of the transactions set forth herein and contemplated hereby.

     SECTION 7.16.  TRUE COPIES OF CHARTER AND OTHER DOCUMENTS.  Each of the 
Borrower and the Guarantor has furnished the Administrative Agent as of the 
Effective Date, true and complete copies of (a) all charter and other 
incorporation documents (together with any amendments thereto) and (b) 
by-laws (together with any amendments thereto).

     SECTION 7.17.  DISCLOSURE.  No representation or warranty made by the 
Borrower or the Guarantor in this Agreement or in any agreement, instrument, 
document, certificate, statement or letter furnished to the Banks or the 
Administrative Agent by or on behalf of or at the request of the Borrower and 
the Guarantor in connection with any of the transactions contemplated by the 
Loan Documents contains any untrue statement of a material fact or omits to 
state a material fact necessary in order to make the statements contained 
therein not misleading in light of the circumstances in which they are made.

     SECTION 7.18.  PERMITS AND GOVERNMENTAL AUTHORITY.  All permits (other 
than those the absence of which would not have a material adverse effect on 
the business, operations or

                                     -47-
<PAGE>

financial condition of the Borrower and its Subsidiaries as a whole) required 
for the construction and operation of all landfills currently owned or 
operated by the Borrower or any of its Subsidiaries have been obtained and 
remain in full force and effect and are not subject to any appeals or further 
proceedings or to any unsatisfied conditions that may allow material 
modification or revocation.  Neither the Borrower nor any of its 
Subsidiaries, nor, to the knowledge of the Borrower and its Subsidiaries, the 
holder of such permits is in violation of any such permits, except for any 
violation which would not have a material adverse effect on the business, 
operations or financial condition of the Borrower and its Subsidiaries as a 
whole.

     SECTION 7.19.  YEAR 2000 COMPLIANCE.  The Borrower and its Subsidiaries
have reviewed the areas within their businesses and operations which could be
adversely affected by, and have developed or are developing a program to address
on a timely basis, the Year 2000 Compliance Issue.  Based upon such review, the
Borrower reasonably believes that the Year 2000 Compliance Issue will not have
any material adverse effect on the business, operations or financial condition
of the Borrower and its Subsidiaries as a whole.

     SECTION 7.20.  USE OF PROCEEDS.  The proceeds of the Loans shall be used
for general corporate purposes, including commercial paper backup, and in
connection with the WMI Merger and refinancing the WMI Credit Agreement, the WMF
Agreement, the buyback of WMInternational shares, the USA Waste Bridge Loan and
the BOA Credit Agreement and other existing debt and letters of credit of Old
WMI.  The Borrower hereby agrees to terminate the WMF Agreement no later than
July 31, 1998.

     SECTION 8.  AFFIRMATIVE COVENANTS OF THE BORROWER.  The Borrower agrees 
that, so long as any Obligation or any Letter of Credit is outstanding or the 
Banks have any obligation to make Loans, or the Issuing Bank has any 
obligation to issue, extend or renew any Letters of Credit hereunder, or the 
Banks have any obligations to reimburse the Issuing Bank for drawings honored 
under any Letter of Credit, it shall, and shall cause its Subsidiaries to, 
comply with the following covenants:

     SECTION 8.1.  PUNCTUAL PAYMENT.  The Borrower will duly and punctually 
pay or cause to be paid the principal and interest on the Loans, all 
Reimbursement Obligations, fees and other amounts provided for in this 
Agreement and the other Loan Documents, all in accordance with the terms of 
this Agreement and such other Loan Documents.

     SECTION 8.2.  MAINTENANCE OF U.S. OFFICE.  The Borrower agrees that, so 
long as any Obligation or any Letter of Credit is outstanding or the Banks 
have any obligation to make Loans, or the Issuing Bank has any obligation to 
issue, extend or renew any Letters of Credit hereunder, or the Banks have any 
obligations to reimburse the Issuing Bank for drawings honored under any 
Letter of Credit, it shall, and shall cause its Subsidiaries to, comply with 
the following covenants:

     SECTION 8.1.  PUNCTUAL PAYMENT.  The Borrower will duly and punctually 
pay or cause to be paid the principal and interest on the Loans, all 
Reimbursement Obligations, fees and other amounts provided for in this 
Agreement and the other Loan Documents, all in accordance with the terms of 
this Agreement and such other Loan Documents.

     SECTION 8.2.  MAINTENANCE OF U.S. OFFICE.  The Borrower will maintain 
its chief executive offices at Houston, Texas, or at such other place in the 
United States of America as the Borrower shall designate upon 30 days' prior 
written notice to the Administrative Agent.

     SECTION 8.3.  RECORDS AND ACCOUNTS.  The Borrower will, and will cause 
each of its Subsidiaries to, keep true and accurate records and books of 
account in which full, true and correct entries will be made in accordance 
with GAAP and with the requirements of all regulatory authorities and 
maintain adequate accounts and reserves for all taxes (including income 
taxes), depreciation, depletion, obsolescence and amortization of its 
properties, all other contingencies, and all other proper reserves.

                                     -48-
<PAGE>

     SECTION 8.4.  FINANCIAL STATEMENTS, CERTIFICATES AND INFORMATION.  The 
Borrower will deliver to the Banks:

          (a)  as soon as practicable, but, in any event not later than 92 days
     after the end of each fiscal year of the Borrower, the consolidated balance
     sheet of the Borrower and its Subsidiaries as at the end of such year,
     consolidated statements of cash flows, and the related consolidated
     statements of operations, each setting forth in comparative form the
     figures for the previous fiscal year, all such consolidated financial
     statements to be in reasonable detail, prepared, in accordance with GAAP
     and, with respect to the consolidated financial statements, certified by
     PricewaterhouseCoopers LLP or Arthur Andersen LLP or by other independent
     auditors selected by the Borrower and reasonably satisfactory to the Banks
     (the "Accountants").  In addition, simultaneously therewith, the Borrower
     shall provide the Banks with a written statement from such Accountants to
     the effect that they have read a copy of this Agreement, and that, in
     making the examination necessary to said certification, they have obtained
     no knowledge of any Default or Event of Default, or, if such Accountants
     shall have obtained knowledge of any then existing Default or Event of
     Default they shall disclose in such statement any such Default or Event of
     Default;

          (b)  as soon as practicable, but in any event not later than 47 days
     after the end of each of the first three fiscal quarters of each fiscal
     year of the Borrower, copies of the consolidated balance sheet and
     statement of operations of the Borrower and its Subsidiaries as at the end
     of such quarter, subject to year-end adjustments, and the related
     consolidated statement of cash flows, all in reasonable detail and prepared
     in accordance with GAAP (to the extent GAAP is applicable to interim
     unaudited financial statements) with a certification by the principal
     financial or accounting officer of the Borrower (the "CFO or the CAO") that
     the consolidated financial statements are prepared in accordance with GAAP
     (to the extent GAAP is applicable to interim unaudited financial
     statements) and fairly present the consolidated financial condition of the
     Borrower and its Subsidiaries on a consolidated basis as at the close of
     business on the date thereof and the results of operations for the period
     then ended, it being understood that no such statement need be accompanied
     by complete footnotes;

          (c)  simultaneously with the delivery of the financial statements
     referred to in (a) and (b) above, a certificate in the form of EXHIBIT F
     hereto (the "Compliance Certificate") signed by the CFO or the CAO or the
     Borrower's corporate treasurer, stating that the Borrower and its
     Subsidiaries are in compliance with the covenants contained in Sections 8,
     9 and 10 hereof as of the end of the applicable period and setting forth in
     reasonable detail computations evidencing such compliance with respect to
     the covenants contained in Sections 9.1(d), 9.3, 9.4, 9.5, and 10 hereof
     and that no Default or Event of Default exists, PROVIDED that if the
     Borrower shall at the time of issuance of such Compliance Certificate or at
     any other time obtain knowledge of any Default or Event of Default, the
     Borrower shall include in such certificate or otherwise deliver forthwith
     to the Banks a certificate specifying the nature and period of existence
     thereof and what action the Borrower proposes to take with respect thereto;

                                     -49-
<PAGE>

          (d)  contemporaneously with, or promptly following, the filing or
     mailing thereof, copies of all material of a financial nature filed with
     the Securities and Exchange Commission or sent to the Borrower's and its
     Subsidiaries' stockholders generally; and

          (e)  from time to time such other financial data and other information
     as the Banks may reasonably request.

     The Borrower hereby authorizes each Bank to disclose any information
obtained pursuant to this Agreement to all appropriate governmental regulatory
authorities where required by law; PROVIDED, HOWEVER, this authorization shall
not be deemed to be a waiver of any rights to object to the disclosure by the
Banks of any such information which the Borrower has or may have under the
federal Right to Financial Privacy Act of 1978, as in effect from time to time,
except as to matters specifically permitted therein.

     SECTION 8.5.  CORPORATE EXISTENCE AND CONDUCT OF BUSINESS.   The 
Borrower will, and will cause each Subsidiary, to do or cause to be done all 
things necessary to preserve and keep in full force and effect its corporate 
existence, corporate rights and franchises; and effect and maintain its 
foreign qualifications (except where the failure of the Borrower or any 
Subsidiary to remain so qualified would not materially adversely impair the 
financial condition, business or assets of the Borrower and its Subsidiaries 
on a consolidated basis), licensing, domestication or authorization except as 
terminated by its Board of Directors in the exercise of its reasonable 
judgment; PROVIDED that such termination would not have a material adverse 
effect on the financial condition, business or assets of the Borrower and its 
Subsidiaries on a consolidated basis.  The Borrower will not, and will cause 
its Subsidiaries not to, become obligated under any contract or binding 
arrangement which, at the time it was entered into, would materially 
adversely impair the financial condition, business or assets of the Borrower 
and its Subsidiaries, on a consolidated basis.  The Borrower will, and will 
cause each Subsidiary to, continue to engage primarily in the businesses now 
conducted by it and in related businesses.

     SECTION 8.6.  MAINTENANCE OF PROPERTIES.  The Borrower will, and will 
cause its Subsidiaries to, cause all material properties used or useful in 
the conduct of their businesses to be maintained and kept in good condition, 
repair and working order (ordinary wear and tear excepted) and supplied with 
all necessary equipment and cause to be made all necessary repairs, renewals, 
replacements, betterments and improvements thereof, all as in the judgment of 
the Borrower and its Subsidiaries may be necessary so that the businesses 
carried on in connection therewith may be properly and advantageously 
conducted at all times; PROVIDED, HOWEVER, that nothing in this section shall 
prevent the Borrower or any of its Subsidiaries from discontinuing the 
operation and maintenance of any of its properties if such discontinuance is, 
in the judgment of the Borrower or such Subsidiary, desirable in the conduct 
of its or their business and which does not in the aggregate materially 
adversely affect the financial condition, business or assets of the Borrower 
and its Subsidiaries on a consolidated basis.

     SECTION 8.7.  INSURANCE.  The Borrower will, and will cause its 
Subsidiaries to, maintain with financially sound and reputable insurance 
companies, funds or underwriters, insurance of the kinds, covering the risks 
(other than risks arising out of or in any way connected with personal 

                                     -50-
<PAGE>

liability of any officers and directors thereof) and in the relative 
proportionate amounts usually carried by reasonable and prudent companies 
conducting businesses similar to that of the Borrower and its Subsidiaries, 
in amounts substantially similar to the existing coverage policies maintained 
by the Borrower and its Subsidiaries, copies of which have been provided to 
the Administrative Agent.  In addition, the Borrower will furnish from time 
to time, upon any Bank's request, a summary of the insurance coverage of the 
Borrower and its Subsidiaries, which summary shall be in form and substance 
satisfactory to the Banks and, if requested by any of the Banks, will furnish 
to the Administrative Agent and such Bank copies of the applicable policies.

     SECTION 8.8.  TAXES.  The Borrower will, and will cause its Subsidiaries 
to, duly pay and discharge, or cause to be paid and discharged, before the 
same shall become overdue, all taxes, assessments and other governmental 
charges (other than taxes, assessments and other governmental charges imposed 
by jurisdictions other than the United States, Canada or any political 
subdivision thereof, which in the aggregate are not material to the business, 
financial conditions, or assets of the Borrower and its Subsidiaries on a 
consolidated basis) imposed upon it and its real properties, sales and 
activities, or any part thereof, or upon the income or profits therefrom, as 
well as all claims for labor, materials, or supplies, which if unpaid might 
by law become a lien or charge upon any of its property; PROVIDED, HOWEVER, 
that any such tax, assessment, charge, levy or claim need not be paid if the 
validity or amount thereof shall currently be contested in good faith by 
appropriate proceedings and if the Borrower or such Subsidiary shall have set 
aside on its books adequate reserves with respect thereto as required by 
GAAP; and PROVIDED, FURTHER, that the Borrower or such Subsidiary will pay 
all such taxes, assessments, charges, levies or claims forthwith upon the 
commencement of proceedings to foreclose any lien which may have attached as 
security therefor.

     SECTION 8.9.  INSPECTION OF PROPERTIES, BOOKS AND CONTRACTS.  The 
Borrower will, and will cause its Subsidiaries to, permit the Administrative 
Agent or any Bank or any of their designated representatives, upon reasonable 
notice, to visit and inspect any of the properties of the Borrower and its 
Subsidiaries, to examine the books of account of the Borrower and its 
Subsidiaries, or contracts (and to make copies thereof and extracts 
therefrom), and to discuss the affairs, finances and accounts of the Borrower 
and its Subsidiaries with, and to be advised as to the same by, their 
officers, all at such times and intervals as may be reasonably requested.

     SECTION 8.10.  COMPLIANCE WITH LAWS, CONTRACTS, LICENSES AND PERMITS; 
MAINTENANCE OF MATERIAL LICENSES AND PERMITS.  The Borrower will, and will 
cause each Subsidiary to, (i) comply with the provisions of its charter 
documents and by-laws; (ii) comply in all material respects with all 
agreements and instruments by which it or any of its properties may be bound; 
(iii) comply with all applicable laws and regulations (including 
Environmental Laws), decrees, orders, judgments, licenses and permits, 
including, without limitation, all environmental permits ("Applicable 
Requirements"), except where noncompliance with such Applicable Requirements 
would not reasonably be expected to have a material adverse effect in the 
aggregate on the consolidated financial condition, properties or businesses 
of the Borrower and its Subsidiaries; and (iv) maintain all material 
operating permits for all landfills now owned or hereafter acquired; and (v) 
dispose of hazardous waste only at licensed disposal facilities operating, to 
the best of the Borrower's or such Subsidiary's knowledge after reasonable 
inquiry, in compliance with 

                                     -51-
<PAGE>

Environmental Laws.  If at any time any authorization, consent, approval, 
permit or license from any officer, agency or instrumentality of any 
government shall become necessary or required in order that the Borrower or 
any Subsidiary may fulfill any of its obligations hereunder or under any 
other Loan Document, the Borrower will immediately take or cause to be taken 
all reasonable steps within the power of the Borrower or such Subsidiary to 
obtain such authorization, consent, approval, permit or license and furnish 
the Banks with evidence thereof.

     SECTION 8.11.  ENVIRONMENTAL INDEMNIFICATION.  The Borrower covenants 
and agrees that it will indemnify and hold the Banks, the Issuing Banks and 
the Administrative Agent and their respective affiliates, and each of the 
representatives, agents and officers of each of the foregoing, harmless from 
and against any and all claims, expense, damage, loss or liability incurred 
by the Banks, the Issuing Banks or the Administrative Agent (including all 
costs of legal representation incurred by the Banks, the Issuing Banks or the 
Administrative Agent) relating to (a) any Release or threatened Release of 
Hazardous Substances on the Real Property; (b) any violation of any 
Environmental Laws or Applicable Requirements with respect to conditions at 
the Real Property or other assets of the Borrower or its Subsidiaries, or the 
operations conducted thereon; or (c) the investigation or remediation of 
offsite locations at which the Borrower, any of its Subsidiaries, or their 
predecessors are alleged to have directly or indirectly Disposed of Hazardous 
Substances.  It is expressly acknowledged by the Borrower that this covenant 
of indemnification shall survive the payment of the Loans and Reimbursement 
Obligations and satisfaction of all other Obligations hereunder and shall 
inure to the benefit of the Banks, the Issuing Banks, the Administrative 
Agent and their affiliates, successors and assigns.

     SECTION 8.12.  FURTHER ASSURANCES.  The Borrower and the Guarantor will 
cooperate with the Administrative Agent and execute such further instruments 
and documents as the Administrative Agent shall reasonably request to carry 
out to the Banks' satisfaction the transactions contemplated by this 
Agreement.

     SECTION 8.13.  NOTICE OF POTENTIAL CLAIMS OR LITIGATION.  The Borrower 
shall deliver to the Banks, within 30 days of receipt thereof, written notice 
of the initiation of any action, claim, complaint, or any other notice of 
dispute or potential litigation against the Borrower or any of its 
Subsidiaries wherein the potential liability is in excess of $25,000,000 or 
which questions the validity or enforceability of any Loan Document together 
with a copy of each such notice received by the Borrower or any of its 
Subsidiaries.

     SECTION 8.14.  NOTICE OF CERTAIN EVENTS CONCERNING INSURANCE AND
ENVIRONMENTAL CLAIMS.  

          (a)  The Borrower will provide the Banks with written notice as to any
     material cancellation or material adverse change in any insurance of the
     Borrower or any of its Subsidiaries within ten (10) Business Days after the
     Borrower's or any of its Subsidiary's receipt of any notice (whether formal
     or informal) of such material cancellation or material change by any of its
     insurers.

          (b)  The Borrower will promptly, and in any event within ten (10)
     Business Days of the Borrower's obtaining knowledge thereof, notify the
     Banks in writing of any of the following events:

                                     -52-
<PAGE>

               (i)  upon the Borrower's or any Subsidiary's obtaining knowledge
          of any violation of any Environmental Law regarding the Real Property
          or the Borrower's or any Subsidiary's operations which violation could
          have a material adverse effect on the business, financial condition,
          or assets of the Borrower and its Subsidiaries on a consolidated
          basis;

               (ii) upon the Borrower's or any Subsidiary's obtaining knowledge
          of any potential or known Release, or threat of Release, of any
          Hazardous Substance at, from, or into the Real Property which could
          materially affect the business, financial condition, or assets of the
          Borrower and its Subsidiaries on a consolidated basis;

               (iii)     upon the Borrower's or any Subsidiary's receipt of any
          notice of any material violation of any Environmental Law or of any
          Release or threatened Release of Hazardous Substances, including a
          notice or claim of liability or potential responsibility from any
          third party (including any federal, state, provincial, territorial or
          local governmental officials) and including notice of any formal
          inquiry, proceeding, demand, investigation or other action with regard
          to (A) the Borrower's, any Subsidiary's or any Person's operation of
          the Real Property, (B) contamination on, from, or into the Real
          Property, or (C) investigation or remediation of offsite locations at
          which the Borrower, any Subsidiary, or its predecessors are alleged to
          have directly or indirectly Disposed of Hazardous Substances, and with
          respect to which the liability associated therewith could be
          reasonably expected to exceed $25,000,000; or

               (iv) upon the Borrower's or any Subsidiary's obtaining knowledge
          that any expense or loss which individually or in the aggregate
          exceeds $25,000,000 has been incurred by such governmental authority
          in connection with the assessment, containment, removal or remediation
          of any Hazardous Substances with respect to which the Borrower or any
          Subsidiary may be liable or for which a lien may be imposed on the
          Real Property.

     SECTION 8.15.  NOTICE OF DEFAULT.  The Borrower will promptly notify the 
Banks in writing of the occurrence of any Default or Event of Default.  If 
any Person shall give any notice or take any other action in respect of a 
claimed default (whether or not constituting an Event of Default) under this 
Agreement or any other note, evidence of indebtedness, indenture or other 
obligation evidencing indebtedness in excess of $25,000,000 as to which the 
Borrower or any of its Subsidiaries is a party or obligor, whether as 
principal or surety, the Borrower shall forthwith upon obtaining actual 
knowledge thereof give written notice thereof to the Banks, describing the 
notice of action and the nature of the claimed default.

     SECTION 8.16.  USE OF PROCEEDS.  

          (a)  GENERALLY:  The proceeds of the Loans shall be used for general
     corporate purposes and in connection with the WMI Merger and refinancing
     the WMI Credit Agreement, the WMF Agreement, the buyback of WMInternational
     shares, the USA 

                                     -53-
<PAGE>

     Waste Bridge Loan and the BOA Credit Agreement and other existing debt and 
     letters of credit of Old WMI.  No proceeds of the Loans shall be used in 
     any way that will violate Regulations G, T, U or X of the Board of 
     Governors of the Federal Reserve System.

          (b)  INELIGIBLE SECURITIES:  No portion of the proceeds of any Loan 
     is to be used, and no portion of any Letter of Credit is to be obtained, 
     for the purpose of (i) knowingly purchasing, or providing credit support 
     for the purchase of, Ineligible Securities from a Section 20 Subsidiary 
     during any period in which such Section 20 Subsidiary makes a market in 
     such Ineligible Securities, (ii) knowingly purchasing, or providing 
     credit support for the purchase of, during the underwriting or 
     placement period, any Ineligible Securities being underwritten or 
     privately placed by a Section 20 Subsidiary, or (iii) making, or 
     providing credit support for the making of, payments of principal or 
     interest on Ineligible Securities underwritten or privately placed by a 
     Section 20 Subsidiary and issued by or for the benefit of the Borrower 
     or any Subsidiary or other affiliate of the Borrower.

     SECTION 8.17.  CERTAIN TRANSACTIONS.  Except as disclosed in the 
Disclosure Documents prior to the Effective Date, and except for arm's 
length transactions pursuant to which the Borrower or any Subsidiary 
makes payments in the ordinary course of business upon terms no less 
favorable than the Borrower or such Subsidiary could obtain from third 
parties, none of the officers, directors, or employees of the Borrower 
or any Subsidiary are presently or shall be a party to any transaction 
with the Borrower or any Subsidiary (other than for services as 
employees, officers and directors), including any contract, agreement 
or other arrangement providing for the furnishing of services to or by, 
providing for rental of real or personal property to or from, or 
otherwise requiring payments to or from any officer, director or such 
employee or, to the knowledge of the Borrower or any Subsidiary, any 
corporation, partnership, trust or other entity in which any officer, 
director, or any such employee has a substantial interest or is an 
officer, director, trustee or partner.

     SECTION 9.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER.  The 
Borrower agrees that, so long as any Obligation or Letter of Credit is 
outstanding or the Banks have any obligation to make Loans or any 
Issuing Bank has any obligation to issue, extend or renew any Letters 
of Credit hereunder, or the Banks have any obligation to reimburse any 
Issuing Bank for drawings honored under any Letter of Credit, it shall, 
and shall cause its Subsidiaries to, comply with the following 
covenants:

     SECTION 9.1.  RESTRICTIONS ON INDEBTEDNESS.  Neither the Borrower 
nor any of its Subsidiaries shall become or be a guarantor or surety 
of, or otherwise create, incur, assume, or be or remain liable, 
contingently or otherwise, with respect to any Indebtedness, or become 
or be responsible in any manner (whether by agreement to purchase any 
obligations, stock, assets, goods or services, or to supply or advance 
any funds, assets, goods or services or otherwise) with respect to any 
Indebtedness of any other Person, or incur any Indebtedness other than:

          (a)  Indebtedness arising under this Agreement or the other Loan
     Documents;

                                     -54-
<PAGE>

          (b)  (i) Indebtedness incurred by the Borrower or any Subsidiary with
     respect to any suretyship or performance bond incurred in the ordinary
     course of its business, and undrawn landfill closure bonds; and

               (ii) Guarantees of the Subsidiaries' obligations to governmental
     authorities in lieu of the posting of any landfill closure bonds;

          (c)  Unsecured Indebtedness of the Borrower (and any guarantee thereof
     by Old WMI), including commercial paper, which is pari passu or
     subordinated to the Obligations; PROVIDED that there does not exist a
     Default or Event of Default at the time of the incurrence of such
     Indebtedness and no Default or Event of Default would be created by the
     incurrence of such Indebtedness;

          (d)  (i)  Indebtedness of the Borrower's Subsidiaries (other than of
     Old WMI, and with respect to the Sanifill Convertible Subordinated Debt and
     United Convertible Subordinated Debt), (ii) secured Indebtedness of the
     Borrower, (iii) Indebtedness with respect to drawn landfill closure bonds
     of the Borrower's Subsidiaries (other than of Old WMI), and (iv)
     Indebtedness with respect to Permitted Receivables Transactions (other than
     of Old WMI); PROVIDED that the aggregate amount of all such Indebtedness in
     this Section 9.1(d) shall not exceed 15% of Consolidated Tangible Assets at
     any time;

          (e)  Indebtedness of Old WMI listed in SCHEDULE 9.1(E) on the terms
     and conditions existing on the Effective Date, PROVIDED that any extension,
     renewal or refinancing by Old WMI of such Indebtedness is prohibited unless
     the amount of such extended, renewed or refinanced Indebtedness by Old WMI
     is deducted from Indebtedness allowed under Section 9.1(d) above;

          (f)  Indebtedness of the Borrower and certain of its Subsidiaries
     incurred pursuant to the USA Waste Credit Agreement;

          (g)  The Sanifill Convertible Subordinated Debt and United Convertible
     Subordinated Debt; and

          (h)  Until July 31, 1998 only, Indebtedness with respect to the WMF
     Agreement.

     SECTION 9.2.  RESTRICTIONS ON LIENS.  The Borrower will not, and will 
cause its Subsidiaries not to, create or incur or suffer to be created or 
incurred or to exist any lien, encumbrance, mortgage, pledge, charge, 
restriction or other security interest of any kind upon any property or 
assets of any character, whether now owned or hereafter acquired, or upon the 
income or profits therefrom; or transfer any of such property or assets or 
the income or profits therefrom for the purpose of subjecting the same to the 
payment of Indebtedness or performance of any other obligation  in priority 
to payment of its general creditors; or acquire, or agree or have an option 
to acquire, any property or assets upon conditional sale or other title 
retention or purchase money security agreement, device or arrangement; or 
suffer to exist for a period of more than 30 days after the same shall have 
been incurred any Indebtedness or claim or demand against it which if 

                                     -55-
<PAGE>

unpaid might by law or upon bankruptcy or insolvency, or otherwise, be given 
any priority whatsoever over its general creditors; or sell, assign, pledge 
or otherwise transfer any accounts, contract rights, general intangibles or 
chattel paper, with or without recourse, except as follows (the "Permitted 
Liens"):

          (a)  Liens existing on the Effective Date and listed on SCHEDULE
     9.2(A) hereto;

          (b)  Liens securing Indebtedness permitted by Section 9.1(b)(i)
     hereof; provided that the assets subject to such liens and security
     interests shall be limited to those contracts to which such guaranty,
     suretyship or indemnification obligations relate and the rights to payment
     thereunder;

          (c)  Liens securing Indebtedness permitted under Sections 9.1(d) and
     (e) (provided that Liens created pursuant to a Permitted Receivables
     Transaction are only on the receivables so transferred and securing only
     the obligations with respect thereto), and Section 9.1(h), PROVIDED such
     liens are discharged by August 31, 1998;

          (d)  Liens to secure taxes, assessments and other government charges
     in respect of obligations not overdue;

          (e)  Deposits or pledges made in connection with, or to secure payment
     of, workmen's compensation, unemployment insurance, old age pensions or
     other social security obligations;

          (f)  Liens in respect of judgments or awards which have been in force
     for less than the applicable period for taking an appeal so long as
     execution is not levied thereunder or in respect of which the Borrower (or
     any Subsidiary) shall at the time in good faith be prosecuting an appeal or
     proceedings for review and in respect of which a stay of execution shall
     have been obtained pending such appeal or review and in respect of which
     the Borrower maintains adequate reserves;

          (g)  Liens of carriers, warehousemen, mechanics and materialmen, and
     other like liens, in existence less than 120 days from the date of creation
     thereof in respect of obligations not overdue, PROVIDED that such liens may
     continue to exist for a period of more than 120 days if the validity or
     amount thereof shall currently be contested by the Borrower (or any
     Subsidiary) in good faith by appropriate proceedings and if the Borrower
     shall have set aside on its books adequate reserves with respect thereto as
     required by GAAP and PROVIDED FURTHER that the Borrower (or any Subsidiary)
     will pay any such claim forthwith upon commencement of proceedings to
     foreclose any such lien; and

          (h)  Encumbrances consisting of easements, rights of way, zoning
     restrictions, restrictions on the use of real property and defects and
     irregularities in the title thereto, landlord's or lessor's liens under
     leases to which the Borrower or any Subsidiary is a party, and other minor
     liens or encumbrances none of which in the opinion of the Borrower
     interferes materially with the use of the property affected in the ordinary

                                     -56-
<PAGE>

     conduct of the business of the Borrower or any of its Subsidiaries, which
     defects do not individually or in the aggregate have a material adverse
     effect on the business of the Borrower or any Subsidiary individually or of
     the Borrower and its Subsidiaries on a consolidated basis.

          The Borrower and the Guarantor covenant and agree that if either of
     them or any of their Subsidiaries shall create or assume any lien upon any
     of their respective properties or assets, whether now owned or hereafter
     acquired, other than Permitted Liens (unless prior written consent shall
     have been obtained from the Banks), the Borrower and the Guarantor will
     make or cause to be made effective provision whereby the Obligations and
     the Guaranteed Obligations will be secured by such lien equally and ratably
     with any and all other Indebtedness thereby secured so long as such other
     Indebtedness shall be so secured; PROVIDED, that the covenants of the
     Borrower and the Guarantor contained in this sentence shall only be in
     effect for so long as the Borrower or the Guarantor shall be similarly
     obligated under any other Indebtedness; PROVIDED, FURTHER, that an Event of
     Default shall occur for so long as such other Indebtedness becomes secured
     notwithstanding any actions taken by the Borrower or the Guarantor to
     ratably secure the Obligations and the Guaranteed Obligations hereunder.

     SECTION 9.3.  RESTRICTIONS ON INVESTMENTS.  Except to the extent 
provided in Section 9.4, neither the Borrower nor any Subsidiary may make or 
permit to exist or to remain outstanding any Investment, unless both before 
and after giving effect thereto (i) the Borrower and its Subsidiaries are in 
compliance with the covenants set forth in Sections 8, 9 and 10 hereof; (ii) 
there does not exist a Default or Event of Default and no Default or Event of 
Default would be created by the making of such Investment; and (iii) the 
aggregate amount of all Investments (excluding Investments in (A) direct 
obligations of the United States of America or any agency thereof having 
maturities of less than one (1) year, (B) certificates of deposit having 
maturities of less than one (1) year, issued by commercial banks in the 
United States or Canada having capital and surplus of not less than 
$100,000,000, (C) wholly owned Subsidiaries (other than WMInternational), and 
(D) existing WMInternational Investments listed on SCHEDULE 9.3) does not 
exceed 10% of Consolidated Tangible Assets; PROVIDED, that the ability of the 
Borrower and its Subsidiaries to incur any Indebtedness in connection with 
any Investment permitted by this Section 9.3 shall be governed by Section 9.1.

     SECTION 9.4.  Mergers, Consolidations, Sales.  

          (a)  Neither the Borrower nor any Subsidiary shall be a party to any
     merger, consolidation or exchange of stock unless the Borrower shall be the
     surviving entity with respect to any such transaction to which the Borrower
     is a party and the Guarantor shall be the survivor of any merger with any
     other Subsidiary or a Subsidiary shall be the surviving entity (and
     continue to be a Subsidiary) with respect to any such transactions to which
     one or more Subsidiaries is a party (and the conditions set forth below are
     satisfied), or purchase or otherwise acquire all or substantially all of
     the assets or stock of any class of, or any partnership, membership or
     joint venture or other interest in, any other Person except as otherwise
     provided in Section 9.3 or this Section 9.4.  Notwithstanding the

                                     -57-
<PAGE>

     foregoing, the Borrower and its Subsidiaries may purchase or otherwise
     acquire all or substantially all of the assets or stock of any class of, or
     joint venture or other interest in, any Person if the following conditions
     have been met:  (i) the proposed transaction will not otherwise create a
     Default or an Event of Default hereunder; (ii) the business to be acquired
     predominantly involves (A) the collection, transfer, hauling, disposal or
     recycling of solid waste (excluding hazardous waste as that term is defined
     in RCRA) or thermal soil remediation, or (B) other lines of businesses
     currently engaged in by Old WMI, including (1) on-site portable sanitation
     services, (2) industrial cleaning services, (3) chemical waste treatment,
     storage, disposal and related services, (4) on-site integrated hazardous
     waste management services, including hazardous waste identification,
     packaging, removal, and recycling services, (5) radioactive waste
     management services, (6) development and operation of waste-to-energy
     facilities and related services, (7) the treatment and management of
     biosolids, (8) design and installation of air pollution control systems and
     equipment, or (9) environmental and infrastructure consulting and related
     services, provided that revenues from operations with respect to items (3),
     (4) and (5) shall not exceed ten percent (10%) of consolidated revenues
     without the consent of the Majority Banks; (iii) the business to be
     acquired operates predominantly (A) in North America or (B) outside North
     America, PROVIDED, that the aggregate amount of such acquisitions under
     this clause (B) does not exceed fifteen percent (15%) of Consolidated
     Tangible Assets; and (iv) the board of directors and (if required by
     applicable law) the shareholders, or the equivalent thereof, of the
     business to be acquired has approved such acquisition.  Notwithstanding
     anything herein to the contrary, the ability of the Borrower and its
     Subsidiaries to incur any Indebtedness in connection with any transaction
     permitted pursuant to this Section 9.4 shall be governed by Section 9.1. 
     Notwithstanding the foregoing, the Borrower may effect the WMI Merger
     provided that such transaction will not otherwise create a Default or Event
     of Default hereunder.

          (b)  Neither the Borrower nor any Subsidiary shall sell, transfer,
     convey or lease any assets or group of assets including the sale or
     transfer of any property owned by the Borrower or any Subsidiary in order
     then or thereafter to lease such property or lease other property which the
     Borrower or such Subsidiary intends to use for substantially the same
     purpose as the property being sold or transferred (except (1) transfers of
     real or personal property among Subsidiaries of the Borrower which are
     wholly owned by the Borrower, (2) Regulatory Dispositions, and (3) so long
     as no Default or Event of Default has occurred and is continuing, or would
     result therefrom, sales of assets in the ordinary course of business in any
     calendar year with an aggregate value not greater than five percent (5%) of
     Consolidated Total Assets, as set forth in the most recent financial
     statements delivered to the Banks pursuant to Section 8.4 hereof) or sell
     or assign, with or without recourse, any receivables (except accounts
     receivable more than sixty (60) days past due sold or assigned in the
     ordinary course of collecting past due accounts, or pursuant to a Permitted
     Receivables Transaction).

     SECTION 9.5.  RESTRICTED DISTRIBUTIONS AND REDEMPTIONS.  Neither the 
Borrower nor any of its Subsidiaries will (a) declare or pay any 
Distributions, or (b) redeem, convert, retire or otherwise acquire shares of 
any class of its capital stock (other than in connection with a merger 
permitted 

                                     -58-
<PAGE>

by Section 9.4 hereof or conversion into another form of equity of any 
preferred shares of the Borrower existing as of the Effective Date pursuant 
to the terms thereof); PROVIDED that the Borrower and its Subsidiaries may 
pay cash dividends and redeem stock in an aggregate amount not to exceed (x) 
$100,000,000 PLUS (y) on a cumulative basis, 50% of the sum of, if positive, 
(i) Consolidated Net Income after June 30, 1998 PLUS (ii) WMI Merger Costs 
and Special Charges. Notwithstanding the above, any Subsidiary may make 
Distributions to the Borrower and the Borrower agrees that neither the 
Borrower nor any Material Subsidiary will enter into any agreement 
restricting Distributions from such Material Subsidiary to the Borrower.

     SECTION 9.6.  EMPLOYEE BENEFIT PLANS.  None of the Borrower, any of its 
Subsidiaries, or any ERISA Affiliate will:

          (a)  engage in any "prohibited transaction" within the meaning of 9406
     of ERISA or Section 4975 of the Code which could result in a material
     liability for the Borrower on a consolidated basis; or

          (b)  permit any Guaranteed Pension Plan to incur an "accumulated
     funding deficiency", as such term is defined in Section 302 of ERISA,
     whether or not such deficiency is or may be waived; or

          (c)  fail to contribute to any Guaranteed Pension Plan to an extent
     which, or terminate any Guaranteed Pension Plan in a manner which, could
     result in the imposition of a lien or encumbrance on the assets of the
     Borrower or any guarantor pursuant to Section 302(f) or Section 4068 of
     ERISA; or

          (d)  permit or take any action which would result in the aggregate
     benefit liabilities (with the meaning of Section 4001 of ERISA) of all
     Guaranteed Pension Plans exceeding the value of the aggregate assets of
     such Plans, disregarding for this purpose the benefit liabilities and
     assets of any such Plan with assets in excess of benefit liabilities; or

          (e)  take any action referred to in paragraph (a), (b), (c) or (d)
     above that would violate any provisions of Applicable Canadian Pension
     Legislation.

     The Borrower and its Subsidiaries will (i) promptly upon the request of 
any Bank or the Administrative Agent, furnish to the Banks a copy of the most 
recent actuarial statement required to be submitted under Section 103(d) of 
ERISA and Annual Report, Form 5500, with all required attachments, in respect 
of each Guaranteed Pension Plan and (ii) promptly upon receipt or dispatch, 
furnish to the Banks any notice, report or demand sent or received in respect 
of a Guaranteed Pension Plan under Sections 302, 4041, 4042, 4043, 4063, 
4065, 4066 and 4068 of ERISA, or in respect of a Multiemployer Plan, under 
Sections 4041A, 4202, 4219, 4242 or 4245 of ERISA.

     SECTION 10.  FINANCIAL COVENANTS OF THE BORROWER.  The Borrower agrees 
that, so long as any Obligation or Letter of Credit is outstanding or the 
Banks have any obligation to make Loans, or any Issuing Bank has any 
obligation to issue, extend or renew any Letter of Credit hereunder, or the 
Banks have any obligation to reimburse any Issuing Bank for drawings 

                                     -59-
<PAGE>

honored under any Letter of Credit, it shall, and shall cause its 
Subsidiaries to, comply with the following covenants:

     SECTION 10.1.  INTEREST COVERAGE RATIO.  As of the end of any fiscal
quarter of the Borrower ending during any period described in the table set
forth below, the Borrower will not permit the ratio of (a) EBIT to
(b) Consolidated Total Interest Expense for such period to be less than the
ratio set forth opposite such period in such table:


                 Period                          Ratio
                 ------                          -----

    Effective Date - March 31, 1999              2.50:1
    April 1, 1999 and thereafter                 3.00:1


The Interest Coverage Ratio shall be calculated on a cumulative quarterly 
basis for the fiscal quarters ending September 30, 1998 through March 31, 
1999, and thereafter, for the four fiscal quarters then ending.

     SECTION 10.2.  TOTAL DEBT TO EBITDA.  As of the end of any fiscal 
quarter of the Borrower commencing with the fiscal quarter ending September 
30, 1998, the ratio of Total Debt to EBITDA shall not exceed 3.00:1 at any 
time.  For the purposes of this Section 10.2, EBITDA shall be calculated on 
an annualized basis for the fiscal quarters ending September 30, 1998 through 
the fiscal quarter ending March 31, 1999, and thereafter, for the four fiscal 
quarters then ending.

     SECTION 11.  CONDITIONS PRECEDENT.  
     
     SECTION 11.1.  CONDITIONS TO EFFECTIVENESS.  The effectiveness of this 
Agreement and the obligations of the Banks to make any Loans and of any 
Issuing Bank to issue Letters of Credit and of the Banks to participate in 
Letters of Credit and otherwise be bound by the terms of this Agreement shall 
be subject to the satisfaction of each of the following conditions precedent:

          SECTION 11.1.1.  CORPORATE ACTION.  All corporate action necessary 
     for the valid execution, delivery and performance by the Borrower and 
     the Guarantor of the Loan Documents shall have been duly and effectively 
     taken, and evidence thereof certified by authorized officers of the 
     Borrower and the Guarantor and satisfactory to the Banks shall have been
     provided to the Banks.

          SECTION 11.1.2.  LOAN DOCUMENTS, ETC.  Each of the Loan Documents and 
     other documents listed on the closing agenda shall have been duly and 
     properly authorized, executed and delivered by the respective parties 
     thereto and shall be in full force and effect in a form satisfactory to 
     the Banks.

          SECTION 11.1.3.  CERTIFIED COPIES OF CHARTER DOCUMENTS.  The Banks 
     shall have received from each of the Borrower and the Guarantor a 
     copy, certified by a duly authorized officer of such Person to be 
     true and complete on the Effective Date, of (a) its charter or other
     incorporation documents as in effect on such date of certification, and 
     (b) its by-laws as in effect on such date.

                                     -60-
<PAGE>

          SECTION 11.1.4.  INCUMBENCY CERTIFICATE.  The Banks shall have 
     received an incumbency certificate, dated as of the Effective Date, 
     signed by duly authorized officers giving the name and bearing a 
     specimen signature of each individual who shall be authorized: (a) 
     to sign the Loan Documents on behalf of the Borrower and the Guarantor;
     (b) to make Syndicated Loan Requests and Letter of Credit Requests; (c) to
     make Competitive Bid Quote Requests; and (d) to give notices and to take
     other action on the Borrower's behalf under the Loan Documents.

          SECTION 11.1.5.  CERTIFICATES OF INSURANCE.  The Banks shall have 
     received (i) a certificate of insurance from an independent insurance 
     broker dated as of the Effective Date, or within 15 days prior thereto, 
     identifying insurers, types of insurance, insurance limits, and policy 
     terms, and otherwise describing the insurance obtained in accordance 
     with the provisions of the Loan Documents and (ii) copies of all 
     policies evidencing such insurance (or certificates therefor signed by
     the insurer or an agent authorized to bind the insurer).

          SECTION 11.1.6.  OPINIONS OF COUNSEL.  The Banks shall have 
     received (a) favorable legal opinions from outside counsel to the 
     Borrower and the Guarantor addressed to the Banks, dated the Effective 
     Date, in form and substance satisfactory to the Administrative Agent.

          SECTION 11.1.7.  EXISTING DEBT.  The Administrative Agent shall 
     have received evidence, in form and substance satisfactory to the 
     Administrative Agent, that all amounts owing under (a) the USA Waste 
     Bridge Loan, (b) the WMI Credit Agreement, and (c) the BOA Credit 
     Agreement have been paid in full and discharged as of the Effective Date.

          SECTION 11.1.8.  SATISFACTORY FINANCIAL CONDITION.  No material 
     adverse change, in the judgment of the Majority Banks, shall have 
     occurred in the financial condition, results of operations, business, 
     properties or prospects of the Borrower and its Subsidiaries, or
     Old WMI and its Subsidiaries, taken as a whole, since the most recent
     financial statements and projections provided to the Banks.

          SECTION 11.1.9.  USA WASTE CREDIT AGREEMENT.  The USA Waste Credit 
     Agreement shall have been amended and restated in form and substance 
     reasonably satisfactory to the Agents.

          SECTION 11.1.10.  WMI MERGER.  The WMI Merger shall be successfully 
     completed on terms no less favorable to the Borrower than the terms set 
     forth in the WMI Merger Agreement, and evidence thereof satisfactory to 
     the Administrative Agent, including, without limitation, a legal 
     opinion as to the completion of the WMI Merger, shall have been 
     furnished to the Administrative Agent.  In addition, the definitive 
     documentation relating to the WMI Merger shall be in form and substance 
     reasonably satisfactory to the Agents, and the structure of the WMI 
     Merger, including all tax, ERISA, accounting and other consequences 
     thereof, shall be satisfactory to the Agents.

                                      -61-
<PAGE>

          SECTION 11.1.11.  CERTAIN APPROVALS.  All necessary governmental 
     and third party approvals shall have been obtained in connection with 
     the WMI Merger and the transactions contemplated hereunder, except 
     approvals which the failure to obtain will not have a material 
     adverse impact on the Borrower, its business or financial condition, 
     individually or in the aggregate, and all applicable waiting periods 
     with respect to any action which could be taken to restrain, prevent 
     or otherwise adversely affect the WMI Merger shall have expired without 
     such action having been taken or threatened.

          SECTION 11.1.12.  LIEN SEARCH RESULTS.  The Administrative Agent 
     shall have received the results of UCC lien searches satisfactory to 
     the Administrative Agent with respect to Old WMI and its Subsidiaries 
     indicating no liens or encumbrances other than Permitted Liens.

          SECTION 11.1.13.  PAYMENT OF CLOSING FEES.  The Borrower shall 
     have paid the agreed upon closing fees to the Administrative Agent 
     for the account of the Banks.

     SECTION 11.2.  NOTICE OF EFFECTIVE DATE.  Promptly upon receipt of 
the items set forth above, the Administrative Agent shall notify the 
Banks that all of the conditions of Section 11.1 have been satisfied. 




                                      -62-
<PAGE>


     SECTION 12.  CONDITIONS TO ALL LOANS.  The obligations of the Banks to 
make any Loan and the obligation of any Issuing Bank to issue, extend, or 
renew any Letter of Credit at the time of and subsequent to the Effective 
Date is subject to the following conditions precedent:

     SECTION 12.1.  REPRESENTATIONS TRUE.  Each of the representations and 
warranties of the Borrower and the Guarantor (as applicable) contained in 
this Agreement or in any document or instrument delivered pursuant to or in 
connection with this Agreement shall be true as of the date as of which they 
were made and shall also be true at and as of the time of the making of such 
Loan or the issuance, extension, or renewal of any Letter of Credit, as 
applicable, with the same effect as if made at and as of that time (except to 
the extent of changes resulting from transactions contemplated or permitted 
by this Agreement and changes occurring in the ordinary course of business 
which singly or in the aggregate are not materially adverse to the business, 
assets or financial condition of the Borrower and its Subsidiaries as a 
whole, and to the extent that such representations and warranties relate 
expressly and solely to an earlier date).

     SECTION 12.2.  PERFORMANCE; NO EVENT OF DEFAULT.  The Borrower shall 
have performed and complied with all terms and conditions herein required to 
be performed or complied with by them prior to or at the time of the making 
of any Loan the issuance, extension or renewal of any Letter of Credit, and 
at the time of the making of any Loan or the issuance, renewal or extension 
of any Letter of Credit, there shall exist no Default or Event of Default or 
condition which would result in a Default or an Event of Default upon 
consummation of such Loan or issuance, extension, or renewal of any Letter of 
Credit, as applicable.  Each request for a Loan, or for issuance, extension 
or renewal of a Letter of Credit shall constitute certification by the 
Borrower that the conditions specified in Sections 12.1 and 12.2 will be duly 
satisfied on the date of such Loan or Letter of Credit issuance, extension or 
renewal.

     SECTION 12.3.  NO LEGAL IMPEDIMENT.  No change shall have occurred in 
any law or regulations thereunder or interpretations thereof which in the 
reasonable opinion of the Banks would make it illegal for the Banks to make 
Loans, for any Issuing Bank to issue, extend or renew, or the Banks to 
participate in, Letters of Credit hereunder.

     SECTION 12.4.  GOVERNMENTAL REGULATION.  The Banks shall have received 
from the Borrower and its Subsidiaries such statements in substance and form 
reasonably satisfactory to the Banks as they shall require for the purpose of 
compliance with any applicable regulations of the Comptroller of the Currency 
or the Board of Governors of the Federal Reserve System or the Office of the 
Superintendent of Financial Institutions.

     SECTION 12.5.  PROCEEDINGS AND DOCUMENTS.  All proceedings in connection 
with the transactions contemplated by this Agreement and all documents 
incident thereto shall have been delivered to the Banks as of the date of the 
making of any extension of credit in substance and in form satisfactory to 
the Banks, including without limitation a Syndicated Loan Request in the form 
attached hereto as EXHIBIT D or a Letter of Credit Request in the form of 
EXHIBIT E and the Banks shall have received all information and such 
counterpart originals or certified or other copies of such documents as the 
Banks may reasonably request. 

                                      -63-
<PAGE>

     SECTION 13.  EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENT.  

     SECTION 13.1.  EVENTS OF DEFAULT AND ACCELERATION.  If any of the 
following events ("Events of Default" or, if the giving of notice or the 
lapse of time or both is required, then, prior to such notice and/or lapse of 
time, "Defaults") shall occur:

          (a)  if the Borrower shall fail to pay any principal of the Loans when
     the same shall become due and payable, whether at the stated date of
     maturity or any accelerated date of maturity or at any other date fixed for
     payment;

          (b)  if the Borrower shall fail to pay any interest or fees or other
     amounts owing hereunder (other than those specified in subsection (a)
     above) within five (5) Business Days after the same shall become due and
     payable whether at the Revolving Credit Maturity Date, Term Loan Maturity
     Date or any accelerated date of maturity or at any other date fixed for
     payment;

          (c)  if the Borrower shall fail to comply with any of the covenants
     contained in Sections 8, 9 and 10 hereof;

          (d)  if the Borrower shall fail to perform any term, covenant or
     agreement contained herein or in any of the other Loan Documents (other
     than those specified in subsections (a), (b), and (c) above) and such
     failure shall not be remedied within 30 days after written notice of such
     failure shall have been given to the Borrower by the Administrative Agent
     or any of the Banks;

          (e)  if any representation or warranty contained in this Agreement or
     in any document or instrument delivered pursuant to or in connection with
     this Agreement shall prove to have been false in any material respect upon
     the date when made or repeated;

          (f)  if the Borrower or any of its Subsidiaries shall fail to pay when
     due, or within any applicable period of grace, any Indebtedness in an
     aggregate amount greater than $50,000,000, or fail to observe or perform
     any material term, covenant or agreement contained in any one or more
     agreements by which it is bound, evidencing or securing any Indebtedness in
     an aggregate amount greater than $50,000,000 for such period of time as
     would, or would have permitted (assuming the giving of appropriate notice
     if required) the holder or holders thereof or of any obligations issued
     thereunder to accelerate the maturity thereof or terminate its commitment
     with respect thereto;

          (g)  if the Borrower, the Guarantor or any Material Subsidiary makes
     an assignment for the benefit of creditors, or admits in writing its
     inability to pay or generally fails to pay its debts as they mature or
     become due, or petitions or applies for the appointment of a trustee or
     other custodian, liquidator or receiver of the Borrower, the Guarantor or
     any Material Subsidiary, or of any substantial part of the assets of the
     Borrower, the Guarantor or any Material Subsidiary or commences any case or
     other proceeding relating to the Borrower, the Guarantor or any Material
     Subsidiary under any 

                                      -64-
<PAGE>

     bankruptcy, reorganization, arrangement, insolvency, readjustment of debt, 
     dissolution or liquidation or similar law of any jurisdiction, now or 
     hereafter in effect, or takes any action to authorize or in furtherance
     of any of the foregoing, or if any such petition or application is filed 
     or any such case or other proceeding is commenced against the Borrower,
     the Guarantor or any Material Subsidiary or the Borrower, the Guarantor 
     or any Material Subsidiary indicates its approval thereof, consent thereto 
     or acquiescence therein;

          (h)  if a decree or order is entered appointing any such trustee,
     custodian, liquidator or receiver or adjudicating the Borrower or the
     Guarantor or any Material Subsidiary bankrupt or insolvent, or approving a
     petition in any such case or other proceeding, or a decree or order for
     relief is entered in respect of the Borrower or the Guarantor or any
     Material Subsidiary in an involuntary case under federal bankruptcy laws of
     any jurisdiction as now or hereafter constituted, and such decree or order
     remains in effect for more than 30 days, whether or not consecutive;

          (i)  if there shall remain in force, undischarged, unsatisfied and
     unstayed, for more than thirty days, whether or not consecutive, any final
     judgment against the Borrower or any Subsidiary which, with other
     outstanding final judgments against the Borrower and its Subsidiaries
     exceeds in the aggregate $25,000,000 after taking into account any
     undisputed insurance coverage;

          (j)  if, with respect to any Guaranteed Pension Plan (or any
     corresponding plan described in any Applicable Canadian Pension
     Legislation), an ERISA Reportable Event or similar event under Applicable
     Canadian Pension Legislation shall have occurred and the Banks shall have
     determined in their reasonable discretion that such event reasonably could
     be expected to result in liability of the Borrower or any Subsidiary to the
     PBGC or similar Canadian authorities or the Plan in an aggregate amount
     exceeding $25,000,000 and such event in the circumstances occurring
     reasonably could constitute grounds for the partial or complete termination
     of such Plan by the PBGC or similar Canadian authorities or for the
     appointment by the appropriate United States District Court or Canadian
     Court of a trustee to administer such Plan; or a trustee shall have been
     appointed by the appropriate United States District Court or Canadian Court
     to administer such Plan; or the PBGC or similar Canadian authorities shall
     have instituted proceedings to terminate such Plan;

          (k)  if any of the Loan Documents shall be cancelled, terminated,
     revoked or rescinded otherwise than in accordance with the terms thereof or
     with the express prior written agreement, consent or approval of the Banks,
     or any action at law, suit or in equity or other legal proceeding to
     cancel, revoke or rescind any of the Loan Documents shall be commenced by
     or on behalf of the Borrower, the Guarantor, or any of their respective
     stockholders, or any court or any other governmental or regulatory
     authority or agency of competent jurisdiction shall make a determination
     that, or issue a judgment, order, decree or ruling to the effect that, any
     one or more of the Loan Documents is illegal, invalid or unenforceable in
     accordance with the terms thereof; or


                                      -65-
<PAGE>

          (l)  if any person or group of persons (within the meaning of Section
     13 or 14 of the Securities Exchange Act of 1934, as amended) shall have
     acquired beneficial ownership (within the meaning of Rule 13d-3 promulgated
     by the Securities and Exchange Commission under said Act) of 25% or more of
     the outstanding shares of common voting stock of the Borrower; or during
     any period of twelve consecutive calendar months, individuals who were
     directors of the Borrower on the first day of such period shall cease to
     constitute a majority of the board of directors of the Borrower;

then, and in any such event, so long as the same may be continuing, the
Administrative Agent may, and upon the request of the Majority Banks shall,
by notice in writing to the Borrower, declare all amounts owing with respect
to this Agreement, the Notes and the other Loan Documents and all
Reimbursement Obligations to be, and they shall thereupon forthwith become,
immediately due and payable without presentment, demand, protest, notice of
intent to accelerate, notice of acceleration to the extent permitted by law
or other notice of any kind, all of which are hereby expressly waived by the
Borrower; PROVIDED that in the event of any Event of Default specified in
Section 13.1(g) or 13.1(h), all such amounts shall become immediately due and
payable automatically and without any requirement of notice from the
Administrative Agent or any Bank.  Upon demand by the Majority Banks after
the occurrence of any Event of Default, the Borrower shall immediately
provide to the Administrative Agent cash in an amount equal to the aggregate
Maximum Drawing Amount to be held by the Administrative Agent as collateral
security for the Reimbursement Obligations.

     SECTION 13.2.  TERMINATION OF COMMITMENTS.  If any Event of Default
pursuant to Sections 13.1(g) or 13.1(h) hereof shall occur, any unused
portion of the Total Commitment hereunder shall forthwith terminate and the
Banks and the Issuing Banks shall be relieved of all obligations to make
Loans or to issue, extend or renew Letters of Credit hereunder; or if any
other Event of Default shall occur, the Majority Banks may by notice to the
Borrower terminate the unused portion of the Total Commitment hereunder, and,
upon such notice being given, such unused portion of the Total Commitment
hereunder shall terminate immediately and the Banks and the Issuing Banks
shall be relieved of all further obligations to make Loans or to issue,
extend or renew Letters of Credit hereunder.  No termination of any portion
of the Total Commitment hereunder shall relieve the Borrower of any of its
existing Obligations to the Banks, the Issuing Banks or the Administrative
Agent hereunder or elsewhere.

     SECTION 13.3.  REMEDIES.  In case any one or more of the Events of
Default shall have occurred and be continuing, and whether or not the Banks
shall have accelerated the maturity of the Loans and other Obligations
pursuant to Section 13.1, each Bank, upon notice to the other Banks, if owed
any amount with respect to the Loans or the Reimbursement Obligations, may
proceed to protect and enforce its rights by suit in equity, action at law or
other appropriate proceeding, whether for the specific performance of any
covenant or agreement contained in this Agreement and the other Loan
Documents or any instrument pursuant to which the Obligations to such Bank
are evidenced, including, without limitation, as permitted by applicable law
the obtaining of the EX PARTE appointment of a receiver, and, if such amount
shall have become due, by declaration or otherwise, proceed to enforce the
payment thereof or any legal or equitable right of such Bank, any recovery
being subject to the terms of Section 30 hereof.  No remedy herein conferred
upon any

                                       -66-
<PAGE>

Bank or the Administrative Agent or the holder of any Note is intended to be
exclusive of any other remedy and each and every remedy shall be cumulative
and shall be in addition to every other remedy given hereunder or now or
hereafter existing at law or in equity or by statute or any other provision
of law.

     SECTION 14.  SETOFF.  Regardless of the adequacy of any collateral,
during the continuance of an Event of Default, any deposits or other sums
credited by or due from any Bank to the Borrower or any of them and any
securities or other property of the Borrower or any of them in the possession
of such Bank may be applied to or set off against the payment of Obligations
and any and all other liabilities, direct, or indirect, absolute or
contingent, due or to become due, now existing or hereafter arising, of the
Borrower to the Banks or the Administrative Agent. Any amounts set off
pursuant to this Section 14 shall be distributed ratably in accordance with
Section 30 among all of the Banks by the Bank setting off such amounts.  If
any Bank fails to share such setoff ratably, the Administrative Agent shall
have the right to withhold such Bank's share of the Borrower's payments until
each of the Banks shall have, in the aggregate, received a pro rata repayment.

     SECTION 15.  EXPENSES.  Whether or not the transactions contemplated
herein shall be consummated, the Borrower hereby promises to reimburse the
Administrative Agent for all reasonable out-of-pocket fees and disbursements
(including all reasonable attorneys' fees) incurred or expended in connection
with the syndication, preparation, filing or recording, or interpretation of
this Agreement, the other Loan Documents, or any amendment, modification,
approval, consent or waiver hereof or thereof.  The Borrower further promises
to reimburse the Administrative Agent and the Banks for all reasonable
out-of-pocket fees and disbursements (including all reasonable legal fees and
the allocable cost of in-house attorneys' fees) incurred or expended in
connection with the enforcement of any Obligations or the satisfaction of any
indebtedness of the Borrower hereunder or under any other Loan Document, or
in connection with any litigation, proceeding or dispute hereunder in any way
related to the credit hereunder.  The Borrower also promises to pay the
Administrative Agent all reasonable out-of-pocket fees and disbursements,
incurred or expended in connection with the Competitive Bid Loan procedure
under Section 4 hereof.

     SECTION 16.  THE AGENTS.

     SECTION 16.1.  APPOINTMENT, POWERS AND IMMUNITIES.  Each Bank hereby
irrevocably appoints and authorizes MGT to act as Administrative Agent,
PROVIDED, HOWEVER, the Administrative Agent is hereby authorized to serve
only as administrative and documentation agent for the Banks and to exercise
such powers as are reasonably incidental thereto and as are set forth in this
Agreement and the other Loan Documents.  The Administrative Agent hereby
acknowledges that it does not have the authority to negotiate any agreement
which would bind the Banks or agree to any amendment, waiver or modification
of any of the Loan Documents or bind the Banks except as set forth in this
Agreement or the Loan Documents.  Except as provided in this Agreement, and
in the other Loan Documents, the Administrative Agent shall take action or
refrain from acting only upon instructions of the Banks.  It is agreed that
the duties, rights, privileges and immunities of the Issuing Banks, in their
capacity as issuers of Letters of Credit hereunder, shall be identical to the
duties, rights, privileges and immunities of the Administrative Agent as

                                       -67-
<PAGE>

provided in this Section 16.  The Administrative Agent shall not have any
duties or responsibilities or any fiduciary relationship with any Bank except
those expressly set forth in this Agreement and the other Loan Documents.
Neither the Administrative Agent nor any of its affiliates shall be
responsible to the Banks for any recitals, statements, representations or
warranties made by the Borrower or any other Person whether contained herein
or otherwise or for the value, validity, effectiveness, genuineness,
enforceability or sufficiency of this Agreement, the other Loan Documents or
any other document referred to or provided for herein or therein or for any
failure by the Borrower or any other Person to perform its obligations
hereunder or thereunder or in respect of the Notes.  The Administrative Agent
may employ agents and attorneys-in-fact and shall not be responsible for the
negligence or misconduct of any such agents or attorneys-in-fact selected by
it with reasonable care.  The Administrative Agent, the Agents and any of
their directors, officers, employees or agents shall not be responsible for
any action taken or omitted to be taken by it or them hereunder or in
connection herewith, except for its or their own gross negligence or willful
misconduct.  The Administrative Agent in its separate capacity as a Bank
shall have the same rights and powers hereunder as any other Bank.  The
Documentation Agent and the Syndication Agents shall not have any right,
power, obligation, liability, responsibility or duty under this Credit
Agreement in such capacity, other than with respect to the Documentation
Agent, those applicable to all Banks as Banks.

     SECTION 16.2.  ACTIONS BY ADMINISTRATIVE AGENT.  The Administrative
Agent shall be fully justified in failing or refusing to take any action
under this Agreement as reasonably deemed appropriate unless it shall first
have received the consent of the Majority Banks (or, when expressly required
hereby, all of the Banks), and shall be indemnified to its reasonable
satisfaction by the Banks against any and all liability and expense which may
be incurred by it by reason of taking or continuing to take any such action.
The Administrative Agent shall in all cases be fully protected in acting, or
in refraining from acting, under this Agreement or any of the Loan Documents
in accordance with the instruction of the Majority Banks (or, when expressly
required hereby or thereby, all of the Banks), and such instruction and any
action taken or failure to act pursuant thereto shall be binding upon the
Banks and all future holders of the Notes or any Letter of Credit
Participation.

     SECTION 16.3.  INDEMNIFICATION.  Without limiting the obligations of the
Borrower hereunder or under any other Loan Document, the Banks agree to
indemnify the Administrative Agent, its affiliates and its respective
directors, officers, agents and employees (to the extent not reimbursed by
the Borrower) ratably in accordance with their respective Commitment
Percentages for any and all liabilities, obligations, losses, damages,
penalties, actions, judgments, suits, costs, expenses or disbursements of any
kind or nature whatsoever which may at any time be imposed on, incurred by or
asserted against the Administrative Agent in any way relating to or arising
out of this Agreement or any other Loan Document or any documents
contemplated by or referred to herein or therein or the transactions
contemplated hereby or thereby or the enforcement of any of the terms hereof
or thereof or of any such other documents; PROVIDED, that no Bank shall be
liable for any of the foregoing to the extent they arise from the gross
negligence or willful misconduct of the Administrative Agent (or any agent
thereof) and PROVIDED FURTHER that no Bank shall be liable with respect to
acts of Section 20 Subsidiaries of other Banks, IT BEING THE INTENT OF THE
PARTIES HERETO THAT ALL SUCH INDEMNIFIED PARTIES SHALL BE

                                       -68-
<PAGE>

INDEMNIFIED FOR THEIR ORDINARY SOLE OR CONTRIBUTORY NEGLIGENCE.

     SECTION 16.4.  REIMBURSEMENT.  Without limiting the provisions of
Sections 6.1(a), 6.12, and 14, the Administrative Agent shall not be obliged
to make available to any Person any sum which the Administrative Agent is
expecting to receive for the account of that Person until the Administrative
Agent has determined that it has received that sum.  The Administrative Agent
may, however, disburse funds prior to determining that the sums which the
Administrative Agent expects to receive have been finally and unconditionally
paid to the Administrative Agent, if the Administrative Agent wishes to do
so.  If and to the extent that the Administrative Agent does disburse funds
and it later becomes apparent that the Administrative Agent did not then
receive a payment in an amount equal to the sum paid out, then any Person to
whom the Administrative Agent made the funds available shall, on demand from
the Administrative Agent, refund to the Administrative Agent the sum paid to
that Person.  If, in the opinion of the Administrative Agent, the
distribution of any amount received by it in such capacity hereunder or under
the other Loan Documents might involve it in liability, it may refrain from
making distribution until its right to make distribution shall have been
adjudicated by a court of competent jurisdiction. If a court of competent
jurisdiction shall adjudge that any amount received and distributed by the
Administrative Agent is to be repaid, each Person to whom any such
distribution shall have been made shall either repay to the Administrative
Agent its proportionate share of the amount so adjudged to be repaid or shall
pay over the same in such manner and to such Persons as shall be determined
by such court.

     SECTION 16.5.  DOCUMENTS.  The Administrative Agent will forward to each
Bank, promptly after receipt thereof, a copy of each notice or other document
furnished to the Administrative Agent for such Bank hereunder; PROVIDED,
HOWEVER, that, notwithstanding the foregoing, the Administrative Agent may
furnish to the Banks a monthly summary with respect to Letters of Credit
issued hereunder in lieu of copies of the related Letter of Credit
Applications.

     SECTION 16.6.  NON-RELIANCE ON ADMINISTRATIVE AGENT AND OTHER BANKS.
Each Bank represents that it has, independently and without reliance on the
Administrative Agent, the Agents or any other Bank, and based on such
documents and information as it has deemed appropriate, made its own
appraisal of the financial condition and affairs of the Borrower and the
Guarantor and the decision to enter into this Agreement and the other Loan
Documents and agrees that it will, independently and without reliance upon
the Administrative Agent, the Agents or any other Bank, and based on such
documents and information as it shall deem appropriate at the time, continue
to make its own appraisals and decisions in taking or not taking action under
this Agreement or any other Loan Document.  Except as herein expressly
provided to the contrary, the Administrative Agent shall not be required to
keep informed as to the performance or observance by the Borrower and the
Guarantor of this Agreement, the other Loan Documents or any other document
referred to or provided for herein or therein or by any other Person of any
other agreement or to make inquiry of, or to inspect the properties or books
of, any Person.  Except for notices, reports and other documents and
information expressly required to be furnished to the Banks by the
Administrative Agent hereunder, the Administrative Agent shall not have any
duty or responsibility to provide any Bank with any credit or other
information

                                       -69-
<PAGE>

concerning any person which may come into the possession of the
Administrative Agent or any of their affiliates.  Each Bank shall have access
to all documents relating to the Administrative Agent's performance of their
duties hereunder at such Bank's request. Unless any Bank shall promptly
object to any action taken by the Administrative Agent hereunder of which
such Bank has actual knowledge (other than actions which require the prior
consent of such Bank in accordance with the terms hereof or to which the
provisions of Section 16.8 are applicable and other than actions which
constitute gross negligence or willful misconduct by the Administrative
Agent), such Bank shall be presumed to have approved the same.

     SECTION 16.7.  RESIGNATION OF ADMINISTRATIVE AGENT.  The Administrative
Agent may resign at any time by giving 60 days' prior written notice thereof
to the Banks and the Borrower.  Upon any such resignation, the Banks (other
than the resigning Administrative Agent) shall have the right to appoint a
successor Administrative Agent from among the Banks. If no successor to the
Administrative Agent shall have been so appointed by the Banks and shall have
accepted such appointment within 30 days after the retiring Administrative
Agent's giving of notice of resignation, then the retiring Administrative
Agent may, on behalf of the Banks, appoint a successor Administrative Agent
from among the remaining Banks, which shall be a financial institution having
a combined capital and surplus in excess of $1,000,000,000. Upon the
acceptance of any appointment as the Administrative Agent hereunder by a
successor Administrative Agent, such successor Administrative Agent shall
thereupon succeed to and become vested with all the rights, powers,
privileges and duties of the retiring Administrative Agent, and the retiring
Administrative Agent shall be discharged from its duties and obligations
hereunder.  After the retiring Administrative Agent's resignation, the
provisions of this Agreement shall continue in effect for its benefit in
respect of any actions taken or omitted to be taken by it while it was acting
as the Administrative Agent.  Any new Issuing Bank appointed pursuant to this
Section 16.7 shall immediately issue new Letters of Credit in place of
Letters of Credit previously issued or, if acceptable to the resigning
Issuing Bank, issue letters of credit in favor of the resigning Issuing Bank
as security for the outstanding Letters of Credit and shall in due course
replace all Letters of Credit previously issued by the resigning Issuing Bank.

     SECTION 16.8.  ACTION BY THE BANKS, CONSENTS, AMENDMENTS, WAIVERS, ETC.
Any action to be taken (including the giving of notice) may be taken, any
consent or approval required or permitted by this Agreement or any other Loan
Document to be given by the Banks may be given, any term of this Agreement,
any other Loan Document or any other instrument, document or agreement
related to this Agreement or the other Loan Documents or mentioned therein
may be amended, and the performance or observance by the Borrower or any
other Person of any of the terms thereof and any Default or Event of Default
(as defined in any of the above-referenced documents or instruments) may be
waived (either generally or in a particular instance and either retroactively
or prospectively), only with the written consent of the Majority Banks;
PROVIDED, HOWEVER, that no such consent or amendment which affects the
rights, duties or liabilities of the Administrative Agent or any Issuing Bank
shall be effective without the written consent of the Administrative Agent or
such Issuing Bank, as the case may be. Notwithstanding the foregoing, no
amendment, waiver or consent shall do any of the following unless in writing
and signed by ALL of the Banks (a) increase the principal amount of the Total
Commitment (or subject any Bank to any additional obligations), (b) reduce
the principal of or interest on the Notes

                                       -70-
<PAGE>

(including, without limitation, interest on overdue amounts) or any fees
payable hereunder, (c) postpone any date fixed for any payment in respect of
principal or interest (including, without limitation, interest on overdue
amounts) on the Notes or any fee hereunder (except pursuant to Section 2.10);
(d) change the definition of "Majority Banks" or number of Banks which shall
be required for the Banks or any of them to take any action under the Loan
Documents; (e) amend this Section 16.8; (f) change the Commitment Percentage
of any Bank, except as permitted under Section 21 and Section 2.10 hereof,
(g) change the Total Commitment Percentage of any Bank, or (h) release the
Borrower or the Guarantor from its obligations hereunder (except as expressly
set forth herein).

     SECTION 17.  INDEMNIFICATION.  The Borrower agrees to indemnify and hold
harmless the Banks, the Agents, the Issuing Banks, and the Administrative
Agent and their affiliates, as well as the Banks' and the Administrative
Agent's and their affiliates' shareholders, directors, agents, officers,
subsidiaries and affiliates, from and against all damages, losses, settlement
payments, obligations, liabilities, claims, suits, penalties, assessments,
citations, directives, demands, judgments, actions or causes of action,
whether statutorily created or under the common law, and reasonable costs and
expenses incurred, suffered, sustained or required to be paid by an
indemnified party by reason of or resulting from the transactions
contemplated hereby, except any of the foregoing which result from the gross
negligence or willful misconduct of any indemnified party.  In any
investigation, enforcement matter, proceeding or litigation, or the
preparation therefor, the Banks and the Administrative Agent shall be
entitled to select their own counsel and, in addition to the foregoing
indemnity, the Borrower agrees to pay promptly the reasonable fees and
expenses of such counsel.  In the event of the commencement of any such
proceeding or litigation against the Banks or Administrative Agent by third
parties, the Borrower shall be entitled to participate in such proceeding or
litigation with counsel of their choice at their expense, PROVIDED that such
counsel shall be reasonably satisfactory to the Banks or Administrative
Agent.  The covenants of this Section 17 shall survive payment or
satisfaction of payment of amounts owing with respect to any Note or any
other Loan Document and satisfaction of all the Obligations hereunder, IT
BEING THE INTENT OF THE PARTIES HERETO THAT ALL SUCH INDEMNIFIED PARTIES
SHALL BE INDEMNIFIED FOR THEIR ORDINARY SOLE OR CONTRIBUTORY NEGLIGENCE.

     SECTION 18.  WITHHOLDING TAXES.  The Borrower hereby agrees that:

          (a)  Any and all payments made by the Borrower hereunder shall be made
     free and clear of, and without deduction for, any and all present or future
     taxes, levies, fees, duties, imposts, deductions, charges or withholdings
     of any nature whatsoever, excluding, in the case of the Administrative
     Agent or the Banks or any holder of the Notes, (i) taxes imposed on, or
     measured by, its net income or profits, (ii) franchise taxes imposed on it,
     (iii) taxes imposed by any jurisdiction as a direct consequence of it, or
     any of its affiliates, having a present or former connection with such
     jurisdiction, including, without limitation, being organized, existing or
     qualified to do business, doing business or maintaining a permanent
     establishment or office in such jurisdiction, and (iv) taxes imposed by
     reason of its failure to comply with any applicable certification,
     identification, information, documentation or other reporting requirement
     (all such non-excluded taxes being hereinafter referred to as
     "Indemnifiable Taxes").  In the event that

                                       -71-
<PAGE>

     any withholding or deduction from any payment to be made by the Borrower
     hereunder is required in respect of any Indemnifiable Taxes pursuant to any
     applicable law, or governmental rule or regulation, then the Borrower will
     (i) direct to the relevant taxing authority the full amount required to be
     so withheld or deducted, (ii) forward to the Administrative Agent for
     delivery to the applicable Bank an official receipt or other documentation
     satisfactory to the Administrative Agent and the applicable Bank evidencing
     such payment to such taxing authority, and (iii) direct to the
     Administrative Agent for the account of the relevant Banks such additional
     amount or amounts as is necessary to ensure that the net amount actually
     received by each relevant Bank will equal the full amount such Bank would
     have received had no such withholding or deduction (including any
     Indemnifiable Taxes on such additional amounts) been required.  Moreover,
     if any Indemnifiable Taxes are directly asserted against the Administrative
     Agent or any Bank with respect to any payment received by the
     Administrative Agent or such Bank by reason of the Borrower's failure to
     properly deduct and withhold such Indemnifiable Taxes from such payment,
     the Administrative Agent or such Bank may pay such Indemnifiable Taxes and
     the Borrower will promptly pay all such additional amounts (including any
     penalties, interest or reasonable expenses) as is necessary in order that
     the net amount received by such Person after the payment of such
     Indemnifiable Taxes (including any Indemnifiable Taxes on such additional
     amount) shall equal the amount such Person would have received had not such
     Indemnifiable Taxes been asserted.  Any such payment shall be made promptly
     after the receipt by the Borrower from the Administrative Agent or such
     Bank, as the case may be, of a written statement setting forth in
     reasonable detail the amount of the Indemnifiable Taxes and the basis of
     the claim.

          (b)  The Borrower shall pay any present or future stamp or documentary
     taxes or any other excise or any other similar levies which arise from any
     payment made hereunder or from the execution, delivery or registration of,
     or otherwise with respect to, this Agreement or any other Loan Document
     ("Other Taxes").

          (c)  The Borrower hereby indemnifies and holds harmless the
     Administrative Agent and each Bank for the full amount of Indemnifiable
     Taxes or Other Taxes (including, without limitation, any Indemnifiable
     Taxes or Other Taxes imposed on amounts payable under this Section 18) paid
     by the Administrative Agent or such Bank, as the case may be, and any
     liability (including penalties, interest and reasonable expenses) arising
     therefrom or with respect thereto, by reason of the Borrower's failure to
     properly deduct and withhold Indemnifiable Taxes pursuant to paragraph (a)
     above or to properly pay Other Taxes pursuant to paragraph (b) above.  Any
     indemnification payment from the Borrower under the preceding sentence
     shall be made promptly after receipt by the Borrower from the
     Administrative Agent or Bank of a written statement setting forth in
     reasonable detail the amount of such Indemnifiable Taxes or such Other
     Taxes, as the case may be, and the basis of the claim.

          (d)  If the Borrower pays any amount under this Section 18 to the
     Administrative Agent or any Bank and such payee knowingly receives a refund
     of any taxes with respect

                                       -72-
<PAGE>

     to which such amount was paid, the Administrative Agent or such Bank, as
     the case may be, shall pay to the Borrower the amount of such refund
     promptly following the receipt thereof by such payee.

          (e)  In the event any taxing authority notifies any of the Borrower
     that any of them has improperly failed to deduct or withhold any taxes
     (other than Indemnifiable Taxes) from a payment made hereunder to the
     Administrative Agent or any Bank, the Borrower shall timely and fully pay
     such taxes to such taxing authority.

          (f)  The Administrative Agent or the Banks shall, upon the request of
     the Borrower, take reasonable measures to avoid or mitigate the amount of
     Indemnifiable Taxes required to be deducted or withheld from any payment
     made hereunder if such measures can be taken without such Person in its
     sole judgment suffering any legal, regulatory or economic disadvantage.

          (g)  Without prejudice to the survival of any other agreement of the
     parties hereunder, the agreements and obligations of the Borrower contained
     in this Section 18 shall survive the payment in full of the Obligations.

     SECTION 19.  TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION.

     SECTION 19.1.  SHARING OF INFORMATION WITH SECTION 20 SUBSIDIARY.  The
Borrower acknowledges that from time to time financial advisory, investment
banking and other services may be offered or provided to the Borrower or one
or more of its Subsidiaries, in connection with this Agreement or otherwise,
by a Section 20 Subsidiary.  The Borrower, for itself and each of its
Subsidiaries, hereby authorizes (a) such Section 20 Subsidiary to share with
the Administrative Agent and each Bank any information delivered to such
Section 20 Subsidiary by the Borrower or any of its Subsidiaries, and (b) the
Administrative Agent and each Bank to share with such Section 20 Subsidiary
any information delivered to the Administrative Agent or such Bank by the
Borrower or any of its Subsidiaries pursuant to this Agreement, or in
connection with the decision of such Bank to enter into this Agreement; it
being understood, in each case, that any such Section 20 Subsidiary receiving
such information shall be bound by the confidentiality provisions of this
Agreement.  Such authorization shall survive the payment and satisfaction in
full of all of Obligations.

     SECTION 19.2.  CONFIDENTIALITY.  Each of the Banks and the
Administrative Agent agrees, on behalf of itself and each of its affiliates,
directors, officers, employees and representatives, to use reasonable
precautions to keep confidential, in accordance with their customary
procedures for handling confidential information of the same nature and in
accordance with safe and sound banking practices, any non-public information
supplied to it by the Borrower or any of its Subsidiaries pursuant to this
Agreement that is identified by such Person as being confidential at the time
the same is delivered to the Banks or the Administrative Agent, PROVIDED that
nothing herein shall limit the disclosure of any such information (a) after
such information shall have become public other than through a violation of
this Section 19, (b) to the extent required by statute, rule, regulation or
judicial process, (c) to counsel for any of the Banks or the Administrative
Agent, (d) to bank examiners or any other regulatory authority having
jurisdiction over any Bank

                                       -73-
<PAGE>

or the Administrative Agent, or to auditors or accountants, (e) to the
Administrative Agent, any Bank or any Section 20 Subsidiary, (f) in
connection with any litigation to which any one or more of the Banks, the
Administrative Agent or any Section 20 Subsidiary is a party, or in
connection with the enforcement of rights or remedies hereunder or under any
other Loan Document, (g) to a Subsidiary or affiliate of such Bank as
provided in Section 19.1 or (h) to any assignee or participant (or
prospective assignee or participant) so long as such assignee or participant
agrees to be bound by the provisions of Section 21.

     SECTION 19.3.  PRIOR NOTIFICATION.  Unless specifically prohibited by
applicable law or court order, each of the Banks and the Administrative Agent
shall, prior to disclosure thereof, notify the Borrower of any request for
disclosure of any such non-public information by any governmental agency or
representative thereof (other than any such request in connection with an
examination of the financial condition of such Bank by such governmental
agency) or pursuant to legal process.

     SECTION 19.4.  OTHER.  In no event shall any Bank or the Administrative
Agent be obligated or required to return any materials furnished to it or any
Section 20 Subsidiary by the Borrower or any of its Subsidiaries.  The
obligations of each Bank under this Section 19 shall supersede and replace
the obligations of such Bank under any confidentiality letter in respect of
this financing signed and delivered by such Bank to the Borrower prior to the
date hereof and shall be binding upon any assignee of, or purchaser of any
participation in, any interest in any of the Loans or Reimbursement
Obligations from any Bank.

     SECTION 20.  SURVIVAL OF COVENANTS, ETC.  Unless otherwise stated
herein, all covenants, agreements, representations and warranties made
herein, in the other Loan Documents or in any documents or other papers
delivered by or on behalf of the Borrower or the Guarantor pursuant hereto
shall be deemed to have been relied upon by the Banks, the Issuing Banks and
the Administrative Agent, notwithstanding any investigation heretofore or
hereafter made by them, and shall survive the making by the Banks of the
Loans and the issuance, extension or renewal of any Letters of Credit by any
Issuing Bank, as herein contemplated, and shall continue in full force and
effect so long as any amount due under this Agreement, any Obligation, any
Letter of Credit or any Note remains outstanding and unpaid or any Bank has
any obligation to make any Loans or any Issuing Bank has any obligation to
issue, extend, or renew any Letters of Credit hereunder.  All statements
contained in any certificate or other paper delivered by or on behalf of the
Borrower pursuant hereto or in connection with the transactions contemplated
hereby shall constitute representations and warranties by the Borrower
hereunder.

     SECTION 21.  ASSIGNMENT AND PARTICIPATION.  It is understood and agreed
that each Bank shall have the right to assign at any time all or a portion of
its Commitment Percentage and interests in the risk relating to the Loans,
outstanding Letters of Credit and its Commitment hereunder in an amount equal
to or greater than $5,000,000 (or, if a Bank's Commitment is less than
$5,000,000, in a minimum amount equal to such Bank's Commitment, PROVIDED
that prior to any Commitment reductions pursuant to Section 2.3, such Bank's
Commitment was at least $10,000,000) to additional banks or other financial
institutions with the prior written approval of the Administrative Agent and,
so long as no Event of Default has occurred and is continuing, the

                                       -74-
<PAGE>

Borrower, which approvals shall not be unreasonably withheld. Any Bank may at
any time, and from time to time, assign to any branch, lending office, or
affiliate or such Bank all or any part of its rights and obligations under
the Loan Documents by notice to the Administrative Agent and the Borrower. It
is further agreed that each bank or other financial institution which
executes and delivers to the Administrative Agent and the Borrower hereunder
an Assignment and Acceptance substantially in the form of EXHIBIT G hereto
(an "Assignment and Acceptance") together with an assignment fee in the
amount of $2,500 payable by the assigning Bank to the Administrative Agent,
shall, on the date specified in such Assignment and Acceptance, become a
party to this Agreement and the other Loan Documents for all purposes of this
Agreement and the other Loan Documents, and its portion of the Commitment,
the Loans and Letters of Credit shall be as set forth in such Assignment and
Acceptance.  The Bank assignor thereunder shall, to the extent that rights
and obligations hereunder have been assigned by it pursuant to such
Assignment and Acceptance, relinquish its rights and be released from its
obligations under this Agreement and the other Loan Documents.  Upon the
execution and delivery of such Assignment and Acceptance, (a) the Borrower
shall issue to the assignee bank or other financial institution Notes in the
amount of such bank's or other financial institution's Commitment dated the
date of the assignment or such other date as may be specified by the
Administrative Agent, and otherwise completed in substantially the form of
EXHIBITS A or B, and to the extent any assigning Bank has retained a portion
of its obligations hereunder, a replacement Syndicated Note, to the assigning
Bank reflecting its assignment; (b) to the extent applicable, the Borrower
shall issue a Competitive Bid Note in substantially the form of EXHIBIT C
(and a replacement Competitive Bid Note) or the Administrative Agent shall
make appropriate entries on the Competitive Bid Loan Accounts to reflect such
assignment of Competitive Bid Loan(s); (c) the Administrative Agent shall
distribute to the Borrower, the Banks and such bank or financial institution
a schedule reflecting such changes; and (d) this Agreement shall be deemed to
be appropriately amended to reflect (i) the status of the bank or financial
institution as a party hereto and (ii) the status and rights of the Banks
hereunder.

     Each Bank shall also have the right to grant participations to one or
more banks or other financial institutions in its Commitment, the Loans and
outstanding Letters of Credit.  The documents evidencing any such
participation shall limit such participating bank's or financial
institution's voting rights with respect to this Agreement to the matters set
forth in Section 16.8 which require the approval of all Banks.

     Notwithstanding the foregoing, no assignment or participation shall
operate to increase the Total Commitment hereunder or otherwise alter the
substantive terms of this Agreement, and no Bank which retains a Commitment
hereunder shall have a Commitment of less than $10,000,000, as such amount
may be reduced upon reductions in the Total Commitment pursuant to Section
2.3 hereof.

     Anything contained in this Section 21 to the contrary notwithstanding,
any Bank may at any time pledge all or any portion of its interest and rights
under this Agreement (including all or any portion of its Notes) to any of
the twelve Federal Reserve Banks organized under Section 4 of the Federal
Reserve Act, 12 U.S.C. Section 341.  No such pledge or the enforcement
thereof shall release the pledgor Bank from its obligations hereunder or
under any of the other Loan Documents.

                                       -75-
<PAGE>

     The Borrower agrees that in addition to disclosures made in accordance
with standard and customary banking practices any Bank may disclose
information obtained by such Bank pursuant to this Agreement to assignees or
participants and potential assignees or participants hereunder; PROVIDED that
such assignees or participants or potential assignees or participants shall
agree to be bound by Section 19 hereof.

     SECTION 22.  PARTIES IN INTEREST.  All the terms of this Agreement and
the other Loan Documents shall be binding upon and inure to the benefit of
and be enforceable by the respective successors and assigns of the parties
hereto and thereto; PROVIDED, that the Borrower shall not assign or transfer
its rights or obligations hereunder or thereunder without the prior written
consent of each of the Banks.

     SECTION 23.  NOTICES, ETC.  Except as otherwise expressly provided in
this Agreement, all notices and other communications made or required to be
given pursuant to this Agreement or the other Loan Documents shall be in
writing and shall be delivered in hand, mailed by United States first class
mail, postage prepaid, or sent by telegraph, telex or facsimile and confirmed
by letter, addressed as follows:

          (a)  if to the Borrower or the Guarantor, at 1001 Fannin Street, Suite
     4000, Houston, Texas 77002, Attention:  Earl E. DeFrates, facsimile number
     (713) 209-9710; or

          (b)  if to BOA, at Bank of America National Trust and Savings
     Association, 231 South LaSalle Street, Chicago, Illinois 60697, Attention:
     Robert P. Rospierski, Managing Director, facsimile number (312) 828-1974;
     or

          (c)  if to MGT, J.P. Morgan Securities Inc. or the Administrative
     Agent at Morgan Guaranty Trust Company of New York, 60 Wall Street, New
     York, New York 10260-0060, facsimile number (212) 648-5018; or

          (d)  if to any Bank, at the address set forth next to such Bank's name
     on SCHEDULE 1 hereto;

or such other address for notice as shall have last been furnished in writing
to the Person giving the notice.

     Any such notice or demand shall be deemed to have been duly given or
made and to have become effective (a) if delivered by hand to a responsible
officer of the party to which it is directed, at the time of the receipt
thereof by such officer, (b) if sent by registered or certified first-class
mail, postage prepaid, five Business Days after the posting thereof, and (c)
if sent by telex, facsimile, or cable, at the time of the dispatch thereof,
if in normal business hours in the country of receipt, or otherwise at the
opening of business on the following Business Day.

     SECTION 24.  MISCELLANEOUS.  The rights and remedies herein expressed
are cumulative and not exclusive of any other rights which the Banks, the
Issuing Banks or the Administrative Agent would otherwise have.  The captions
in this Agreement are for convenience of reference

                                       -76-
<PAGE>

only and shall not define or limit the provisions hereof.  This Agreement and
any amendment hereof may be executed in several counterparts and by each
party on a separate counterpart, each of which when so executed and delivered
shall be an original, but all of which together shall constitute one
instrument.  In proving this Agreement it shall not be necessary to produce
or account for more than one such counterpart signed by the party against
whom enforcement is sought.

     SECTION 25.  CONSENTS, ETC.  Neither this Agreement nor any term hereof
may be changed, waived, discharged or terminated, except as provided in this
Section 25, subject to the provisions of Section 16.8.  No waiver shall
extend to or affect any obligation not expressly waived or impair any right
consequent thereon.  Except as otherwise expressly provided in this
Agreement, any consent or approval required or permitted by this Agreement to
be given by the Banks may be given, and any term of this Agreement or of any
other instrument related hereto or mentioned herein may be amended, and the
performance or observance by the Borrower of any terms of this Agreement or
such other instrument or the continuance of any Default or Event of Default
may be waived (either generally or in a particular instance and either
retroactively or prospectively) with, but only with, the written consent of
the Borrower and the Majority Banks.  To the extent permitted by law, no
course of dealing or delay or omission on the part of any of the Banks, the
Issuing Banks or the Administrative Agent in exercising any right shall
operate as a waiver thereof or otherwise be prejudicial thereto.  No notice
to or demand upon the Borrower shall entitle the Borrower to other or further
notice or demand in similar or other circumstances.

     SECTION 26.  WAIVER OF JURY TRIAL.  TO THE EXTENT PERMITTED BY
APPLICABLE LAW, EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND
ALL RIGHT TO A JURY TRIAL WITH RESPECT TO ANY ACTION OR CLAIM ARISING OUT OF
ANY DISPUTE IN CONNECTION WITH THIS AGREEMENT, THE NOTES OR ANY OF THE OTHER
LOAN DOCUMENTS, ANY RIGHTS OR OBLIGATIONS HEREUNDER OR THEREUNDER OR THE
PERFORMANCE OF SUCH RIGHTS AND OBLIGATIONS. EXCEPT AS PROHIBITED BY LAW, THE
BORROWER AND THE GUARANTOR HEREBY WAIVE ANY RIGHT EITHER OF THEM MAY HAVE TO
CLAIM OR RECOVER IN ANY LITIGATION REFERRED TO IN THE PRECEDING SENTENCE ANY
SPECIAL, EXEMPLARY, PUNITIVE OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES OTHER
THAN, OR IN ADDITION TO, ACTUAL DAMAGES.  THE BORROWER AND THE GUARANTOR EACH
(A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY BANK, ANY
ISSUING BANK, THE ADMINISTRATIVE AGENT OR ANY AGENT HAS REPRESENTED,
EXPRESSLY OR OTHERWISE, THAT SUCH BANK, SUCH ISSUING BANK, THE ADMINISTRATIVE
AGENT OR SUCH AGENT WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE
THE FOREGOING WAIVERS AND (B) ACKNOWLEDGES THAT THE ADMINISTRATIVE AGENT,
THE BANKS, AND THE ISSUING BANKS HAVE BEEN INDUCED TO ENTER INTO THIS
AGREEMENT AND THE OTHER LOAN DOCUMENTS BECAUSE OF, AMONG OTHER THINGS, THE
BORROWER'S AND THE GUARANTOR'S WAIVERS AND CERTIFICATIONS CONTAINED HEREIN.

                                       -77-
<PAGE>

     SECTION 27.  GOVERNING LAW; SUBMISSION TO JURISDICTION.  THIS AGREEMENT
AND EACH OF THE OTHER LOAN DOCUMENTS ARE CONTRACTS UNDER THE LAWS OF THE
STATE OF NEW YORK AND SHALL, PURSUANT TO NEW YORK GENERAL OBLIGATIONS LAW
Section 5-1401, BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF
THE STATE OF NEW YORK.  THE BORROWER AND THE GUARANTOR CONSENT AND AGREE THAT
ANY SUIT FOR THE ENFORCEMENT OF THIS AGREEMENT OR ANY OF THE OTHER LOAN
DOCUMENTS MAY BE BROUGHT IN THE COURTS OF THE STATE OF NEW YORK OR ANY
FEDERAL COURT SITTING THEREIN AND CONSENTS TO THE NONEXCLUSIVE JURISDICTION
OF SUCH COURT AND SERVICE OF PROCESS IN ANY SUCH SUIT BEING MADE UPON THE
BORROWER IN ACCORDANCE WITH LAW AT THE ADDRESS SPECIFIED IN Section 23.  THE
BORROWER AND THE GUARANTOR HEREBY WAIVE ANY OBJECTION THAT THEY MAY NOW OR
HEREAFTER HAVE TO THE VENUE OF ANY SUCH SUIT OR ANY SUCH COURT OR THAT SUCH
SUIT IS BROUGHT IN AN INCONVENIENT COURT.

     SECTION 28.  SEVERABILITY.  The provisions of this Agreement are
severable and if any one clause or provision hereof shall be held invalid or
unenforceable in whole or in part in any jurisdiction, then such invalidity
or unenforceability shall affect only such clause or provision, or part
thereof, in such jurisdiction, and shall not in any manner affect such clause
or provision in any other jurisdiction, or any other clause or provision of
this Agreement in any jurisdiction.

     SECTION 29.  GUARANTY.

     SECTION 29.1.  GUARANTY.  For value received and hereby acknowledged and
as an inducement to the Banks and the Issuing Banks to make the Loans
available to the Borrower, and issue, extend or renew Letters of Credit for
the account of the Borrower, the Guarantor hereby unconditionally and
irrevocably guarantees (a) the full punctual payment when due, whether at
stated maturity, by acceleration or otherwise, of all Obligations of the
Borrower now or hereafter existing whether for principal, interest, fees,
expenses or otherwise, and (b) the strict performance and observance by the
Borrower of all agreements, warranties and covenants applicable to the
Borrower in the Loan Documents and (c) the obligations of the Borrower under
the Loan Documents (such Obligations collectively being hereafter referred to
as the "Guaranteed Obligations").

     SECTION 29.2.  GUARANTY ABSOLUTE.  The Guarantor guarantees that the
Guaranteed Obligations will be paid strictly in accordance with the terms
hereof, regardless of any law, regulation or order now or hereafter in effect
in any jurisdiction affecting any of such terms or the rights of any Bank,
any Issuing Bank or the Administrative Agent with respect thereto.  The
liability of the Guarantor under the guaranty granted under this Agreement
with regard to the Guaranteed Obligations shall be absolute and unconditional
irrespective of:

          (a)  any change in the time, manner or place of payment of, or in any
     other term of, all or any of its Guaranteed Obligations or any other
     amendment or waiver of or

                                       -78-
<PAGE>

     any consent to departure from this Agreement or any other Loan Document
     (with regard to such Guaranteed Obligations);

          (b)  any release or amendment or waiver of or consent to departure
     from any other guaranty for all or any of its Guaranteed Obligations;

          (c)  any change in ownership of the Borrower;

          (d)  any acceptance of any partial payment(s) from the Borrower or the
     Guarantor; or

          (e)  any other circumstance which might otherwise constitute a defense
     available to, or a discharge of, the Borrower in respect of its Obligations
     under any Loan Document.

     The guaranty under this Agreement shall continue to be effective or be
reinstated, as the case may be, if at any time any payment of any Guaranteed
Obligation is rescinded or must otherwise be returned by the Banks, the
Issuing Banks or the Administrative Agent upon the insolvency, bankruptcy or
reorganization of the Borrower or otherwise, all as though such payment had
not been made.

     SECTION 29.3.  EFFECTIVENESS; ENFORCEMENT.  The guaranty under this
Agreement shall be effective and shall be deemed to be made with respect to
each Loan and each Letter of Credit as of the time it is made, issued or
extended, or becomes a Letter of Credit under this Agreement, as applicable.
No invalidity, irregularity or unenforceability by reason of any bankruptcy
or similar law, or any law or order of any government or agency thereof
purporting to reduce, amend or otherwise affect any liability of the
Borrower, and no defect in or insufficiency or want of powers of the Borrower
or irregular or improperly recorded exercise thereof, shall impair, affect,
be a defense to or claim against such guaranty.  The guaranty under this
Agreement is a continuing guaranty and shall (a) survive any termination of
this Agreement, and (b) remain in full force and effect until payment in full
of, and performance of, all Guaranteed Obligations and all other amounts
payable under this Agreement.  The guaranty under this Agreement is made for
the benefit of the Administrative Agent, the Issuing Banks and the Banks and
their successors and assigns, and may be enforced from time to time as often
as occasion therefor may arise and without requirement on the part of the
Administrative Agent, the Issuing Banks or the Banks first to exercise any
rights against the Borrower, or to resort to any other source or means of
obtaining payment of any of the said obligations or to elect any other remedy.

     SECTION 29.4.  WAIVER.  Except as otherwise specifically provided in any
of the Loan Documents, the Guarantor hereby waives promptness, diligence,
protest, notice of protest, all suretyship defenses, notice of acceptance and
any other notice with respect to any of its Guaranteed Obligations and the
guaranty under this Agreement and any requirement that the Banks, the Issuing
Banks or the Administrative Agent protect, secure, perfect any security
interest or lien or any property subject thereto or exhaust any right or take
any action against the Borrower or any other Person.  The Guarantor also
irrevocably waives, to the fullest extent permitted by law, all defenses
which at any time may be available to it in respect of its

                                       -79-
<PAGE>

Guaranteed Obligations by virtue of any statute of limitations, valuation,
stay, moratorium law or other similar law now or hereafter in effect.

     SECTION 29.5.  EXPENSES.  The Guarantor hereby promises to reimburse (a)
the Administrative Agent for all reasonable out-of-pocket fees and
disbursements (including all reasonable attorneys' fees), incurred or
expended in connection with the preparation, filing or recording, or
interpretation of the guaranty under this Agreement, the other Loan Documents
to which the Guarantor is a party, or any amendment, modification, approval,
consent or waiver hereof or thereof, and (b) the Administrative Agent, the
Issuing Banks and the Banks and their respective affiliates for all
reasonable out-of-pocket fees and disbursements (including reasonable
attorneys' fees), incurred or expended in connection with the enforcement of
its Guaranteed Obligations (whether or not legal proceedings are instituted).
 The Guarantor will pay any taxes (including any interest and penalties in
respect thereof) other than the Banks' taxes based on overall income or
profits, payable on or with respect to the transactions contemplated by the
guaranty under this Agreement, the Guarantor hereby agreeing jointly and
severally to indemnify each Bank with respect thereto.

     SECTION 29.6.  CONCERNING JOINT AND SEVERAL LIABILITY OF THE GUARANTOR.

          (a)  The Guarantor hereby irrevocably and unconditionally accepts, not
     merely as a surety but also as a co-debtor, joint and several liability
     with the Borrower, with respect to the payment and performance of all of
     its Guaranteed Obligations (including, without limitation, any Guaranteed
     Obligations arising under this Section 29), it being the intention of the
     parties hereto that all such Guaranteed Obligations shall be the joint and
     several Guaranteed Obligations of the Guarantor and the Borrower without
     preferences or distinction among them.

          (b)  If and to the extent that the Borrower shall fail to make any
     payment with respect to any of its Obligations as and when due or to
     perform any of its Guaranteed Obligations in accordance with the terms
     thereof, then in each such event the applicable Guarantor will make such
     payment with respect to, or perform, such Guaranteed Obligation.

          (c)  The Guaranteed Obligations of the Guarantor under the provisions
     of this Section 29 constitute full recourse obligations of the Guarantor
     enforceable against the Guarantor to the full extent of its properties and
     assets, irrespective of the validity, regularity or enforceability of this
     Agreement or any other circumstance whatsoever.

          (d)  Except as otherwise expressly provided in this Agreement, the
     Guarantor hereby waives notice of acceptance of its joint and several
     liability, notice of any Loans made, or Letters of Credit issued under this
     Agreement, notice of any action at any time taken or omitted by the
     Administrative Agent, the Issuing Banks or the Banks under or in respect of
     any of the Guaranteed Obligations, and, generally, to the extent permitted
     by applicable law, all demands, notices and other formalities of every kind
     in connection with this Agreement. The Guarantor hereby assents to, and
     waives notice of, any extension or postponement of the time for the payment
     of any of the Guaranteed

                                       -80-
<PAGE>

     Obligations, the acceptance of any payment of any of the Guaranteed
     Obligations, the acceptance of any partial payment thereon, any waiver,
     consent or other action or acquiescence by the Administrative Agent, the
     Issuing Banks or the Banks at any time or times in respect of any
     Default or Event of Default by the Borrower or the Guarantor in the
     performance or satisfaction of any term, covenant, condition or
     provision of this Agreement or any other Loan Document, any and all
     other indulgences whatsoever by the Administrative Agent, the Issuing
     Banks or the Banks in respect of any of the Guaranteed Obligations, and
     the taking, addition, substitution or release, in whole or in part, at
     any time or times, of any security for any of the Guaranteed Obligations
     or the addition, substitution or release, in whole or in part, of the
     Borrower or the Guarantor.  Without limiting the generality of the
     foregoing, the Guarantor assents to any other action or delay in acting
     or failure to act on the part of the Banks, the Issuing Banks or the
     Administrative Agent with respect to the failure by the Borrower or the
     Guarantor to comply with its respective Obligations or Guaranteed
     Obligations, including, without limitation, any failure strictly or
     diligently to assert any right or to pursue any remedy or to comply
     fully with applicable laws or regulations thereunder, wich might, but
     for the provisions of this Section 29, afford grounds for terminating,
     discharging or relieving the Guarantor, in whole or in part, from any of
     the Guaranteed Obligations under this Section 29, it being the intention
     of the Guarantor that, so long as any of the Guaranteed Obligations
     hereunder remain unsatisfied, the Guaranteed Obligations of the
     Guarantor under this Section 29 shall not be discharged except by
     performance and then only to the extent of such performance.  The
     Guaranteed Obligations of the Guarantor under this Section 29 shall not
     be diminished or rendered unenforceable by any winding up,
     reorganization, arrangement, liquidation, reconstruction or similar
     proceeding with respect to the Borrower or the Guarantor or the Banks,
     the Issuing Banks or the Administrative Agent.  The joint and several
     liability of the Guarantor hereunder shall continue in full force and
     effect notwithstanding any absorption, merger, consolidation,
     amalgamation or any other change whatsoever in the name, membership,
     constitution or place of formation of the Borrower or the Guarantor, the
     Banks, the Issuing Banks or the Administrative Agent.

          (e)  The Guarantor shall be liable under this Section 29 only for the
     maximum amount of such liabilities that can be incurred under applicable
     law without rendering this Section 29 voidable under applicable law
     relating to fraudulent conveyance and fraudulent transfer, and not for any
     greater amount.  Accordingly, if any obligation under any provision under
     this Section 29 shall be declared to be invalid or unenforceable in any
     respect or to any extent, it is the stated intention and agreement of the
     Guarantor, the Administrative Agent, the Issuing Banks and the Banks that
     any balance of the obligation created by such provision and all other
     obligations of the Guarantor under this Section 29 to the Banks, the
     Issuing Banks or the Administrative Agent shall remain valid and
     enforceable, and that all sums not in excess of those permitted under
     applicable law shall remain fully collectible by the Banks, the Issuing
     Banks and the Administrative Agent from the Borrower or the Guarantor, as
     the case may be.

          (f)  The provisions of this Section 29 are made for the benefit of the
     Administrative Agent, the Issuing Banks and the Banks and their successors
     and assigns, and may be

                                       -81-
<PAGE>

     enforced in good faith by them from time to time against the Guarantor
     as often as occasion therefor may arise and without requirement on the
     part of the Administrative Agent, the Issuing Banks or the Banks first
     to marshal any of their claims or to exercise any of their rights
     against the Borrower or the Guarantor or to exhaust any remedies
     available to them against the Borrower or the Guarantor or to resort to
     any other source or means of obtaining payment of any of the obligations
     hereunder or to elect any other remedy.  The provisions of this Section
     29 shall remain in effect until all of the Guaranteed Obligations shall
     have been paid in full or otherwise fully satisfied and the Commitments
     have expired and all outstanding Letters of Credit have expired, matured
     or otherwise been terminated.  If at any time, any payment, or any part
     thereof, made in respect of any of the Guaranteed Obligations, is
     rescinded or must otherwise be restored or returned by the Banks, the
     Issuing Banks or the Administrative Agent upon the insolvency,
     bankruptcy or reorganization of the Borrower or the Guarantor, or
     otherwise, the provisions of this Section 29 will forthwith be
     reinstated in effect, as though such payment had not been made.

     SECTION 29.7.  WAIVER.  Until the final payment and performance in full
of all of the Obligations, the Guarantor shall not exercise and the Guarantor
hereby waives any rights the Guarantor may have against the Borrower arising
as a result of payment by the Guarantor hereunder, by way of subrogation,
reimbursement, restitution, contribution or otherwise, and will not prove any
claim in competition with the Administrative Agent, the Issuing Banks or any
Bank in respect of any payment hereunder in any bankruptcy, insolvency or
reorganization case or proceedings of any nature; the Guarantor will not
claim any setoff, recoupment or counterclaim against the Borrower in respect
of any liability of the Borrower to the Guarantor; and the Guarantor waives
any benefit of and any right to participate in any collateral security which
may be held by the Administrative Agent, the Issuing Banks or any Bank.

     Section 29.8.  SUBROGATION; SUBORDINATION.  The payment of any amounts
due with respect to any indebtedness of the Borrower for money borrowed or
credit received now or hereafter owed to the Guarantor is hereby subordinated
to the prior payment in full of all of the Obligations.  The Guarantor agrees
that, after the occurrence of any default in the payment or performance of
any of the Obligations, the Guarantor will not demand, sue for or otherwise
attempt to collect any such indebtedness of the Borrower to the Guarantor
until all of the Obligations shall have been paid in full.  If,
notwithstanding the foregoing sentence, the Guarantor shall collect, enforce
or receive any amounts in respect of such indebtedness while any Obligations
are still outstanding, such amounts shall be collected, enforced and received
by the Guarantor as trustee for the Banks, the Issuing Banks and the
Administrative Agent and be paid over to the Administrative Agent at Default,
for the benefit of the Banks, the Issuing Banks, and the Administrative Agent
on account of the Obligations without affecting in any manner the liability
of the Guarantor under the other provisions hereof.

     SECTION 30.  PARI PASSU TREATMENT.

          (a)  Notwithstanding anything to the contrary set forth herein, each
     payment or prepayment of principal and interest received after the
     occurrence of an Event of Default

                                       -82-
<PAGE>

     hereunder shall be distributed pari passu among the Banks, in accordance
     with the aggregate outstanding principal amount of the Obligations owing
     to each Bank divided by the aggregate outstanding principal amount of all
     Obligations.

          (b)  Following the occurrence and during the continuance of any Event
     of Default, each Bank agrees that if it shall, through the exercise of a
     right of banker's lien, setoff or counterclaim against any Borrower
     (pursuant to Section 14 or otherwise), including a secured claim under
     Section 506 of the Bankruptcy Code or other security or interest arising
     from or in lieu of, such secured claim, received by such Bank under any
     applicable bankruptcy, insolvency or other similar law or otherwise, obtain
     payment (voluntary or involuntary) in respect of the Notes, Loans,
     Reimbursement Obligations and other Obligations held by it (other than
     pursuant to Section 6.4, Section 6.5 or Section 6.7) as a result of which
     the unpaid principal portion of the Notes and the Obligations held by it
     shall be proportionately less than the unpaid principal portion of the
     Notes and Obligations held by any other Bank, it shall be deemed to have
     simultaneously purchased from such other Bank a participation in the Notes
     and Obligations held by such other Bank, so that the aggregate unpaid
     principal amount of the Notes, Obligations and participations in Notes and
     Obligations held by each Bank shall be in the same proportion to the
     aggregate unpaid principal amount of the Notes and Obligations then
     outstanding as the principal amount of the Notes and other Obligations held
     by it prior to such exercise of banker's lien, setoff or counterclaim was
     to the principal amount of all Notes and other Obligations outstanding
     prior to such exercise of banker's lien, setoff or counterclaim; provided,
     however, that if any such purchase or purchases or adjustments shall be
     made pursuant to this Section 30 and the payment giving rise thereto shall
     thereafter be recovered, such purchase or purchases or adjustments shall be
     rescinded to the extent of such recovery and the purchase price or prices
     or adjustments restored without interest.  The Borrower expressly consents
     to the foregoing arrangements and agrees that any Person holding such a
     participation in the Notes and the Obligations deemed to have been so
     purchased may exercise any and all rights of banker's lien, setoff or
     counterclaim with respect to any and all moneys owing by the Borrower to
     such Person as fully as if such Person had made a Loan directly to the
     Borrower in the amount of such participation.

     SECTION 31.  FINAL AGREEMENT.  THIS AGREEMENT AND THE OTHER LOAN
DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE
CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL
AGREEMENTS OF THE PARTIES.  THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN
THE PARTIES.

                                       -83-

<PAGE>

     IN WITNESS WHEREOF, the undersigned have duly executed this Agreement as 
of the date first set forth above.

                                       THE BORROWER:

                                       WASTE MANAGEMENT, INC. (f/k/a USA Waste 
                                       Services, Inc.)

                                       By: /s/ EARL E. DEFRATES
                                          -------------------------------------
                                       Name: Earl E. DeFrates
                                       Title: Executive VP & CFO

                                      -84-
<PAGE>

                                       THE GUARANTOR:

                                       WASTE MANAGEMENT HOLDINGS, INC. (f/k/a 
                                       Waste Management, Inc.)

                                       By: /s/ RONALD H. JONES
                                          -------------------------------------
                                       Name: Ronald H. Jones
                                       Title: Vice President & Treasurer

                                      -85-
<PAGE>

                                       THE BANKS AND AGENTS:

                                       MORGAN GUARANTY TRUST COMPANY OF 
                                       NEW YORK, individually and as
                                       Administrative Agent

                                       By: /s/ CHRISTOPHER C. KUNHARDT
                                          -------------------------------------
                                       Name: Christopher C. Kunhardt
                                       Title: Vice President

                                       BANK OF AMERICA NATIONAL TRUST AND 
                                       SAVINGS ASSOCIATION

                                       By: /s/ ROBERT P. ROSPIERSKI
                                          -------------------------------------
                                       Name: Robert P. Rospierski
                                       Title: Managing Director

                                       CHASE BANK OF TEXAS, N.A.

                                       By: /s/ MICHAEL ONDRUCH
                                          -------------------------------------
                                       Name: Michael Ondruch
                                       Title: Vice President

                                       THE CHASE MANHATTAN BANK

                                       By: 
                                          -------------------------------------
                                       Name: 
                                       Title: 

                                       DEUTSCHE BANK AG, NEW YORK BRANCH, 
                                       AND/OR CAYMAN ISLANDS BRANCH, 
                                       individually and as Documentation Agent

                                       By: /s/ JEAN M. HANNIGAN
                                          -------------------------------------
                                       Name: Jean M. Hannigan
                                       Title: Vice President

                                       By: /s/ SUSAN L. PEARSON
                                          -------------------------------------
                                       Name: Susan L. Pearson
                                       Title: Director

                                      -86-
<PAGE>

                                   ABN AMRO BANK, N.A.

                                   By: /s/ LAURIE C. TUZO
                                      -----------------------------------------
                                   Name: Laurie C. Tuzo
                                   Title: Group Vice President

                                   By: /s/ ERIC R. HOLLINGSWORTH
                                      -----------------------------------------
                                   Name: Eric R. Hollingsworth
                                   Title: Assistant Vice President

                                   BANCA DI ROMA

                                   By: /s/ AURORA PENSA / /s/ LUCA BALESTRA
                                      -----------------------------------------
                                   Name: Aurora Pensa / Luca Balestra
                                   Title: V.P. / V.P.

                                   BANK HAPOALIM

                                   By: /s/ CONRAD WAGNER / /s/ ROBERT J. WAGMAN
                                      -----------------------------------------
                                   Name: Conrad Wagner / Robert J. Wagman
                                   Title: First Vice President / 
                                          Assistant Vice President

                                   BANK OF MONTREAL

                                   By: /s/ LEON H. SINCLAIR
                                      -------------------------------------
                                   Name: Leon H. Sinclair
                                   Title: Director

                                   THE BANK OF NEW YORK

                                   By: /s/ HELEN L. SARRO
                                      -------------------------------------
                                   Name: Helen L. Sarro
                                   Title: Assistant Vice President

                                   THE BANK OF NOVA SCOTIA

                                   By: /s/ F.C.H. ASHBY
                                      -------------------------------------
                                   Name: F.C.H. Ashby
                                   Title: Senior Manager - Loan Operations

                                      -87-
<PAGE>

                                       BANKBOSTON, N.A.

                                       By: /s/ ARTHUR J. OBERHEIM
                                          -------------------------------------
                                       Name: Arthur J. Oberheim
                                       Title: Vice President

                                       BANQUE NATIONALE DE PARIS

                                       By: /s/ MIKE SHRYOCK
                                          -------------------------------------
                                       Name: Mike Shryock
                                       Title: Vice President

                                       CARIPLO-CASSA DI RISPARMIO DELLE 
                                       PROVINCIE LOMBARDE SPA

                                       By: /s/ ANTHONY F. GIOBBI
                                          -------------------------------------
                                       Name: Anthony F. Giobbi
                                       Title: First Vice President

                                       By: /s/ MARIA ELENA GREENE
                                          -------------------------------------
                                       Name: Maria Elena Greene
                                       Title: Assistant Treasurer

                                       COMERICA BANK

                                       By: /s/ REGINALD M. GOLDSMITH, III
                                          -------------------------------------
                                       Name: Reginald M. Goldsmith, III
                                       Title: Vice President

                                       COMMERZBANK AG, ATLANTA AGENCY

                                       By: /s/ W. DAVID SUTTLES
                                          -------------------------------------
                                       Name: W. David Suttles
                                       Title: Vice President

                                       By: /s/ D.L. WARD, JR.
                                          -------------------------------------
                                       Name: D.L. Ward, Jr.
                                       Title: Asst. Treasurer

                                      -88-
<PAGE>

                               CREDIT ITALIANO

                               By: /s/ GIANFRANCO BISAGNI / /s/ SAIYED A. ABBAS
                                  ---------------------------------------------
                               Name: Gianfranco Bisagni / Saiyed A. Abbas
                               Title: First Vice President / Assistant Vice 
                                      President

                               CREDIT LYONNAIS NEW YORK BRANCH

                               By: /s/ ROBERT IVOSEVICH
                                  ---------------------------------------------
                               Name: Robert Ivosevich
                               Title: Senior Vice President

                               THE FIRST NATIONAL BANK OF CHICAGO

                               By: /s/ KRZYSZTOF J. SZREMSKI
                                  ---------------------------------------------
                               Name: Krzysztof J. Szremski
                               Title: Vice President

                               FIRST UNION NATIONAL BANK

                               By: /s/ SCOTT SANTA CRUZ
                                  ---------------------------------------------
                               Name: Scott Santa Cruz
                               Title: VP

                               FLEET BANK, N.A.

                               By: /s/ CHRISTOPHER MAYROSE
                                  ---------------------------------------------
                               Name: Christopher Mayrose
                               Title: Vice President

                               THE INDUSTRIAL BANK OF JAPAN
                               TRUST COMPANY

                               By: /s/ KAZUTOSHI KUWAHARA
                                  ---------------------------------------------
                               Name: Kazutoshi Kuwahara
                               Title: Executive Vice President

                                      -89-
<PAGE>

                                       KBC BANK N.V.

                                       By: /s/ ROBERT SNAUFFER
                                          -------------------------------------
                                       Name: Robert Snauffer
                                       Title: Vice President

                                       By: /s/ MICHAEL V. CURRAN
                                          -------------------------------------
                                       Name: Michael V. Curran
                                       Title: Vice President

                                       LEONIA BANK PLC, NEW YORK BRANCH

                                       By: /s/ PEKKA VATAJA
                                          -------------------------------------
                                       Name: Pekka Vataja
                                       Title: General Manager

                                       By: /s/ ARI KAARAKAINEN
                                          -------------------------------------
                                       Name: Ari Kaarakainen
                                       Title: Vice President

                                       MELLON BANK, N.A.

                                       By: /s/ RYAN F. BUSCH
                                          -------------------------------------
                                       Name: Ryan F. Busch
                                       Title: Assistant Vice President

                                       NORDDEUTSCHE LANDESBANK GIROZENTRALE, 
                                       NEW YORK BRANCH

                                       By: /s/ STEPHEN K. HUNTER
                                          -------------------------------------
                                       Name: Stephen K. Hunter
                                       Title: SVP

                                       By: /s/ STEPHANIE FINNEN
                                          -------------------------------------
                                       Name: Stephanie Finnen
                                       Title: VP

                                      -90-
<PAGE>

                                       PNC BANK, NATIONAL ASSOCIATION

                                       By: /s/ ERIC C. JOHNSON
                                          -------------------------------------
                                       Name: Eric C. Johnson
                                       Title: Senior Vice President

                                       ROYAL BANK OF CANADA

                                       By: /s/ GORDON MACARTHUR
                                          -------------------------------------
                                       Name: Gordon MacArthur
                                       Title: Manager

                                       SUNTRUST BANK, ATLANTA

                                       By: /s/ JOHN A. FIELDS, JR.
                                          -------------------------------------
                                       Name: John A. Fields, Jr.
                                       Title: Vice President

                                       By: /s/ STEVEN J. NEWBY
                                          -------------------------------------
                                       Name:  Steven J. Newby
                                       Title: Corporate Banking Officer

                                       TORONTO DOMINION (TEXAS), INC.

                                       By: /s/ DEBBIE A. GREENE
                                          -------------------------------------
                                       Name: Debbie A. Greene
                                       Title: Vice President

                                       WACHOVIA BANK, N.A.

                                       By: /s/ STEVEN M. TAKEI
                                          -------------------------------------
                                       Name: Steven M. Takei
                                       Title: Senior Vice President

                                      -91-
<PAGE>

                                       WESTDEUTSCHE LANDESBANK GIROZENTRALE, 
                                       NEW YORK BRANCH

                                       By: /s/ FELICIA LA FORGIA
                                          -------------------------------------
                                       Name: Felicia La Forgia
                                       Title: Vice President

                                       By: /s/ THOMAS LEE
                                          -------------------------------------
                                       Name: Thomas Lee
                                       Title: Associate

                                      -92-


<PAGE>








                              WASTE MANAGEMENT, INC.

                             1993 STOCK INCENTIVE PLAN

                             (AS AMENDED AND RESTATED)














                                       
                                  JULY 6, 1998



<PAGE>

                                  TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
ARTICLE I.  GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
     Section 1.1.   Purpose. . . . . . . . . . . . . . . . . . . . . . . . .1
     Section 1.2.   Administration . . . . . . . . . . . . . . . . . . . . .1
     Section 1.3.   Eligibility for Participation. . . . . . . . . . . . . .2
     Section 1.4.   Types of Awards Under Plan . . . . . . . . . . . . . . .2
     Section 1.5.   Aggregate Limitation on Awards . . . . . . . . . . . . .2
     Section 1.6.   Effective Date and Term of Plan. . . . . . . . . . . . .3

ARTICLE II.  STOCK OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . .4
     Section 2.1.   Award of Stock Options . . . . . . . . . . . . . . . . .4
     Section 2.2.   Stock Option Agreements. . . . . . . . . . . . . . . . .4
     Section 2.3.   Stock Option Price . . . . . . . . . . . . . . . . . . .4
     Section 2.4.   Term and Exercise. . . . . . . . . . . . . . . . . . . .4
     Section 2.5.   Manner of Payment. . . . . . . . . . . . . . . . . . . .4
     Section 2.6.   Delivery of Shares . . . . . . . . . . . . . . . . . . .5
     Section 2.7.   Death, Retirement and Termination of Employment of 
                    Optionee . . . . . . . . . . . . . . . . . . . . . . . .5
     Section 2.8.   Tax Election . . . . . . . . . . . . . . . . . . . . . .5
     Section 2.9.   Effect of Exercise . . . . . . . . . . . . . . . . . . .6

ARTICLE III.  INCENTIVE STOCK OPTIONS. . . . . . . . . . . . . . . . . . . .6
     Section 3.1.   Award of Incentive Stock Options . . . . . . . . . . . .6
     Section 3.2.   Incentive Stock Option Agreements. . . . . . . . . . . .6
     Section 3.3.   Incentive Stock Option Price . . . . . . . . . . . . . .6
     Section 3.4.   Term and Exercise. . . . . . . . . . . . . . . . . . . .6
     Section 3.5.   Maximum Amount of Incentive Stock Option Grant . . . . .7
     Section 3.6.   Death of Optionee. . . . . . . . . . . . . . . . . . . .7
     Section 3.7.   Retirement or Disability . . . . . . . . . . . . . . . .7
     Section 3.8.   Termination for Other Reasons. . . . . . . . . . . . . .7
     Section 3.9.   Applicability of Stock Options Sections. . . . . . . . .7

ARTICLE IV.  RELOAD OPTIONS. . . . . . . . . . . . . . . . . . . . . . . . .8
     Section 4.1.   Authorization of Reload Options. . . . . . . . . . . . .8
     Section 4.2.   Reload Option Amendment. . . . . . . . . . . . . . . . .8
     Section 4.3.   Reload Option Price. . . . . . . . . . . . . . . . . . .8
     Section 4.4.   Term and Exercise. . . . . . . . . . . . . . . . . . . .8
     Section 4.5.   Termination of Employment. . . . . . . . . . . . . . . .8
     Section 4.6.   Applicability of Stock Options Sections. . . . . . . . .9

ARTICLE V.  ALTERNATE APPRECIATION RIGHTS. . . . . . . . . . . . . . . . . .9
     Section 5.1.   Award of Alternate Appreciation Rights . . . . . . . . .9
     Section 5.2.   Alternate Appreciation Rights Agreement. . . . . . . . .9
</TABLE>


                                          i

<PAGE>

<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                        <C>
     Section 5.3.   Exercise . . . . . . . . . . . . . . . . . . . . . . . . 9
     Section 5.4.   Amount of Payment. . . . . . . . . . . . . . . . . . . . 9
     Section 5.5.   Form of Payment. . . . . . . . . . . . . . . . . . . . . 9
     Section 5.6.   Effect of Exercise . . . . . . . . . . . . . . . . . . .10
     Section 5.7.   Termination of Employment, Retirement, Death or
                    Disability . . . . . . . . . . . . . . . . . . . . . . .10

ARTICLE VI.  LIMITED RIGHTS. . . . . . . . . . . . . . . . . . . . . . . . .10
     Section 6.1.   Award of Limited Rights. . . . . . . . . . . . . . . . .10
     Section 6.2.   Limited Rights Agreement . . . . . . . . . . . . . . . .10
     Section 6.3.   Exercise Period. . . . . . . . . . . . . . . . . . . . .10
     Section 6.4.   Amount of Payment. . . . . . . . . . . . . . . . . . . .10
     Section 6.5.   Form of Payment. . . . . . . . . . . . . . . . . . . . .11
     Section 6.6.   Effect of Exercise . . . . . . . . . . . . . . . . . . .11
     Section 6.7.   Retirement or Disability . . . . . . . . . . . . . . . .11
     Section 6.8.   Death of Optionee or Termination for Other Reasons . . .11
     Section 6.9.   Termination Related to a Change in Control . . . . . . .11

ARTICLE VII.  SUBSTITUTION AWARDS. . . . . . . . . . . . . . . . . . . . . .12

ARTICLE VIII.  BONUS STOCK AWARDS. . . . . . . . . . . . . . . . . . . . . .12
     Section 8.1.   Award of Bonus Stock . . . . . . . . . . . . . . . . . .12
     Section 8.2.   Stock Bonus Agreements . . . . . . . . . . . . . . . . .12

ARTICLE IX.  MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . .12
     Section 9.1.   General Restriction. . . . . . . . . . . . . . . . . . .12
     Section 9.2.   Non-Assignability. . . . . . . . . . . . . . . . . . . .12
     Section 9.3.   Withholding Taxes. . . . . . . . . . . . . . . . . . . .13
     Section 9.4.   Right to Terminate Employment. . . . . . . . . . . . . .13
     Section 9.5.   Non-Uniform Determination. . . . . . . . . . . . . . . .13
     Section 9.6.   Rights as a Shareholder. . . . . . . . . . . . . . . . .13
     Section 9.7.   Definitions. . . . . . . . . . . . . . . . . . . . . . .13
     Section 9.8.   Leaves of Absence. . . . . . . . . . . . . . . . . . . .15
     Section 9.9.   Newly Eligible Employees . . . . . . . . . . . . . . . .15
     Section 9.10.   Adjustments . . . . . . . . . . . . . . . . . . . . . .15
     Section 9.11.   Changes in the Company's Capital Structure. . . . . . .15
     Section 9.12.   Change in Control . . . . . . . . . . . . . . . . . . .17
     Section 9.13.   Amendment of the Plan . . . . . . . . . . . . . . . . .17
     Section 9.14.   Effective Date. . . . . . . . . . . . . . . . . . . . .18
</TABLE>



                                          ii
<PAGE>


                               WASTE MANAGEMENT, INC.

                             1993 STOCK INCENTIVE PLAN


                                ARTICLE I.  GENERAL

     Section 1.1.   PURPOSE.  The purposes of this Stock Incentive Plan (the 
"Plan") are to:  (1) closely associate the interests of the employees and 
consultants of Waste Management, Inc. and its Subsidiaries and Affiliates 
(collectively referred to as the "Company") with the shareholders to generate 
an increased incentive to contribute to the Company's future success and 
prosperity, thus enhancing the value of the Company for the benefit of its 
stockholders; (2) provide  employees and consultants with a proprietary 
ownership interest in the Company commensurate with Company performance, as 
reflected in increased shareholder value; (3) maintain competitive 
compensation levels thereby attracting and retaining highly competent and 
talented  employees and consultants; and (4) provide an incentive to  
employees and consultants for continuous employment with or services to the 
Company.

     Section 1.2.   ADMINISTRATION.

     (a)  The Plan shall be administered by a committee of non-employee 
directors appointed by the Board of Directors of the Company (the 
"Committee"), as constituted from time to time.

     (b)  The Committee shall have the authority, in its sole discretion and
from time to time to:

          (i)    designate the employees and consultants or classes of
     employees of and consultants to the Company eligible to participate in the
     Plan;

          (ii)   grant awards ("Awards") provided in the Plan in such form and
     amount as the Committee shall determine;

          (iii)  impose such limitations, restrictions, and conditions, not
     inconsistent with this Plan, upon any such Award as the Committee shall
     deem appropriate; and

          (iv)   interpret the Plan and any agreement, instrument, or other
     document executed in connection with the Plan; adopt, amend, and rescind
     rules and regulations relating to the Plan; and make all other
     determinations and take all other action necessary or advisable for the
     implementation and administration of the Plan.


                                          1

<PAGE>

     (c)  Decisions and determinations of the Committee on all matters relating
to the Plan shall be in its sole discretion and shall be final, conclusive, and
binding upon all persons, including the Company, any participant, any
stockholder of the Company, and any employee or consultant.  A
majority of the members of the Committee may determine its actions and fix the
time and place of its meetings.  No member of the Committee shall be liable for
any action taken or decision made in good faith relating to the Plan or any
Award thereunder.

     Section 1.3.   ELIGIBILITY FOR PARTICIPATION.  Participants in the Plan
("Participants") shall be selected by the Committee from the employees of and
consultants to the Company who are responsible for or contribute to the
management, growth, success and, profitability of the Company.  In making this
selection and in determining the form and amount of Awards, the Committee shall
consider any factors deemed relevant, including the individual's functions,
responsibilities, value of services to the Company, and past and potential
contributions to the Company's profitability and growth.

     Section 1.4.   TYPES OF AWARDS UNDER PLAN.  Awards under the Plan may be in
the form of any one or more of the following:

          (i)    Stock Options, as described in Article II;

          (ii)   Incentive Stock Options, as described in Article III;

          (iii)  Reload Options, as described in Article IV;

          (iv)   Alternate Appreciation Rights, as described in Article V;

          (v)    Limited Rights, as described in Article VI;

          (vi)   Alternate Stock Awards, as described in Article VII; and/or

          (vii)  Stock Bonus Awards, as described in Article VIII.
Awards under the Plan shall be evidenced by an Award Agreement between the
Company and the recipient of the Award, in form and substance satisfactory to
the Committee, and not inconsistent with this Plan.

     Section 1.5.   AGGREGATE LIMITATION ON AWARDS.

     (a)  Shares of stock which may be issued under the Plan shall be 
authorized and unissued or treasury shares of Common Stock $.01 par value, of 
the Company ("Common Stock").  Subject to the further provisions of this 
Section 1.5 and Section 9.10, the maximum number of shares of Common Stock 
which may be issued under the Plan shall be 26,500,000.

                                          2
<PAGE>

     (b)  For purposes of calculating the maximum number of shares of Common
Stock that may be issued under the Plan:

          (i)    all the shares issued (including the shares, if any, withheld
     for tax withholding requirements) shall be counted when cash is used as
     full payment for shares issued upon exercise of a Stock Option, Incentive
     Stock Option, or Reload Option;

          (ii)   only the shares issued (including the shares, if any, withheld
     for tax withholding requirements) as a result of an exercise of Alternate
     Appreciation Rights shall be counted; and

          (iii)  only the net shares issued (including the shares, if any,
     withheld for tax withholding requirements) shall be counted when shares of
     Common Stock or another Award under the Plan are used or withheld as full
     or partial payment for shares issued upon exercise of a Stock Option,
     Incentive Stock Option, or Reload Option;

provided, however, in all events the maximum number of shares of Common Stock
that may be issued pursuant to Incentive Stock Options is 26,500,000.

     (c)  In addition to shares of Common Stock actually issued pursuant to the
exercise of Stock Options, Incentive Stock Options, Reload Options, or Alternate
Appreciation Rights, there shall be deemed to have been issued a number of
shares equal to the number of shares of Common Stock in respect of which Limited
Rights (as described in Article VI) shall have been exercised.

     (d)  Shares tendered by a Participant or withheld as payment for shares
issued upon exercise of a Stock Option, Incentive Stock Option, or Reload Option
shall be available for issuance under the Plan.  Any shares of Common Stock
subject to a Stock Option, Incentive Stock Option, or Reload Option that for any
reason is terminated unexercised or expires shall again be available for
issuance under the Plan, but shares subject to a Stock Option, Incentive Stock
Option, or Reload Option that are not issued as a result of the exercise of
Limited Rights shall not again be available for issuance under the Plan.

     (e)  The maximum number of shares of Common Stock with respect to which any
Participant may receive Awards in any calendar year is 1,500,000.

     Section 1.6.   EFFECTIVE DATE AND TERM OF PLAN.

     (a)  The Plan became effective on the date it was approved by the holders
of a majority of the shares of Common Stock present in person or by proxy and
entitled to vote at the 1993 Annual Meeting of shareholders of the Company.


                                          3
<PAGE>

     (b)  No Awards shall be made under the Plan after the tenth anniversary of
the effective date of this Plan; provided, however, that the Plan and all Awards
made under the Plan prior to such date shall remain in effect until such Awards
have been satisfied or terminated in accordance with the Plan and the terms of
such Awards.

                             ARTICLE II.  STOCK OPTIONS

     Section 2.1.   AWARD OF STOCK OPTIONS.  The Committee may from time to
time, and subject to the provisions of the Plan and such other terms and
conditions as the Committee may prescribe, grant to any Participant in the Plan
one or more options to purchase the number of shares of Common Stock ("Stock
Options") allotted by the Committee.  The date a Stock Option is granted shall
mean the date selected by the Committee as of which the Committee allots a
specific number of shares to a Participant pursuant to the Plan.

     Section 2.2.   STOCK OPTION AGREEMENTS.  The grant of a Stock Option shall
be evidenced by a written Award Agreement, executed by the Company and the
holder of the Stock Option (the "Optionee"), stating the number of shares of
Common Stock subject to the Stock Option evidenced thereby, and in such form as
the Committee may from time to time determine.

     Section 2.3.   STOCK OPTION PRICE.  The  Option Price per share of Common
Stock deliverable upon the exercise of a Stock Option shall be an amount
selected by the Committee and shall not be less than 100% of the Fair Market
Value of a share of Common Stock on the date the Stock Option is granted.

     Section 2.4.   TERM AND EXERCISE.  A Stock Option shall not be exercisable
prior to six months from the date of its grant  unless a shorter period is
provided by the Committee or by another Section of this Plan, and may be
exercised during  the period established by the Committee, but not after ten
years from the date of grant thereof (the "Option Term").  No Stock Option shall
be exercisable after the expiration of its Option Term.

     Section 2.5.   MANNER OF PAYMENT.  Each Award Agreement providing for Stock
Options shall set forth the procedure governing the exercise of the Stock Option
granted thereunder, and shall provide that, upon such exercise in respect of any
shares of Common Stock subject thereto, the Optionee shall pay to the Company,
in full, the Option Price for such shares with cash, which may be pursuant to a
"cashless-broker" exercise pursuant to procedures established by the Committee
from time to time, or with previously owned Common Stock, or at the discretion
of the Committee, in whole or in part with, the surrender of another Award under
the Plan, the withholding of shares of Common Stock issuable upon exercise of
such Stock Option, other property, or any combination thereof (each based on the
Fair Market Value of such Common Stock, Award or other property on the date the
Stock Option is exercised as determined by the Committee).


                                          4
<PAGE>

     Section 2.6.   DELIVERY OF SHARES.  As soon as practicable after receipt of
payment, the Committee shall deliver to the Optionee a certificate or
certificates for such shares of Common Stock.  The Optionee shall become a
shareholder of the Company with respect to Common Stock represented by share
certificates so issued and as such shall be fully entitled to receive dividends,
to vote and to exercise all other rights of a shareholder.

     Section 2.7.   DEATH, RETIREMENT AND TERMINATION OF EMPLOYMENT OF OPTIONEE.
Unless otherwise provided in an Award Agreement or otherwise agreed to by the
Committee:

     (a)  Upon the death of the Optionee, any rights to the extent exercisable
by the Optionee on the date of termination of employment or consulting, as the
case may be, may be exercised by the Optionee's estate, or by a person who
acquires the right to exercise such Stock Option by bequest or inheritance or by
reason of the death of the Optionee, provided that such exercise occurs within
both the remaining effective term of the Stock Option and one year after the
Optionee's death.  The provisions of this Section shall apply notwithstanding
the fact that the Optionee's employment may have terminated prior to death.

     (b)  Upon termination of the Optionee's employment by reason of retirement
or permanent disability (as each is determined by the Committee), the Optionee
may, within 36 months from the date of termination, exercise any Stock Options
to the extent such Stock Options are exercisable on the date of such termination
of employment.

     (c)  Except as provided in Subsections (a) and (b) of this Section 2.7, or
except as otherwise determined by the Committee, all Stock Options shall
terminate three months after the date of the termination of the Optionee's
employment or consulting, as the case may be, and shall be exercisable during
such period only to the extent exercisable on the date of termination of
employment or consulting.

     Section 2.8.   TAX ELECTION.  Recipients of Stock Options who are directors
or executive officers of the Company or who own more than 10% of the Common
Stock of the Company ("Section 16(a) Option Holders") at the time of exercise of
a Stock Option may elect, in lieu of paying to the Company an amount required to
be withheld under applicable tax laws in connection with the exercise of a Stock
Option in whole or in part, to have the Company withhold shares of Common Stock
having a fair market value equal to the amount required to be withheld.  Such
election may not be made prior to six months following the grant of the Stock
Option, except in the event of a Section 16(a) Option Holders's death or
disability.  The election may be made at the time the Stock Option is exercised
by notifying the Company of the election, specifying the amount of such
withholding and the date on which the number of shares to be withheld is to be
determined ("Tax Date"), which shall be either (i) the date the Stock Option is
exercised or (ii) a date six months after the Stock Option was granted, if
later.  The number of shares of Common Stock to be withheld to satisfy the tax
obligation shall be the amount


                                          5
<PAGE>

of such tax liability divided by the fair market value of the Common Stock on
the Tax Date (or if not a business day, on the next closest business day).  If
the Tax Date is not the exercise date, the Company may issue the full number of
shares of Common Stock to which the Section 16(a) Option Holders is entitled,
and such option holder shall be obligated to tender to the Company on the Tax
Date a number of such shares necessary to satisfy the withholding obligation.
Certificates representing such shares of Common Stock shall bear a legend
describing such Section 16(a) Option Holders obligation hereunder.

     Section 2.9.   EFFECT OF EXERCISE.  The exercise of any Stock Option shall
cancel that number of related Alternate Appreciation Rights and/or Limited
Rights, if any, that is equal to the number of shares of Common Stock purchased
pursuant to said option unless otherwise agreed by the Committee in an Award
Agreement or otherwise.

                       ARTICLE III.  INCENTIVE STOCK OPTIONS

     Section 3.1.   AWARD OF INCENTIVE STOCK OPTIONS.  The Committee may, from
time to time and subject to the provisions of the Plan and such other terms and
conditions as the Committee may prescribe, grant to any  employee of USA Waste
Services, Inc. or a Subsidiary one or more "incentive stock options" (intended
to qualify as such under the provisions of Section 422 of the Internal Revenue
Code of 1986, as amended (the "Code") ("Incentive Stock Options") to purchase
the number of shares of Common Stock allotted by the Committee.  The date an
Incentive Stock Option is granted shall mean the date selected by the Committee
as of which the Committee allots a specific number of shares to a participant
pursuant to the Plan.

     Section 3.2.   INCENTIVE STOCK OPTION AGREEMENTS.  The grant of an
Incentive Stock Option shall be evidenced by a written Award Agreement, executed
by the Company and the holder of an Incentive Stock Option (the "Optionee"),
stating the number of shares of Common Stock subject to the Incentive Stock
Option evidenced thereby, and in such form as the Committee may from time to
time determine.

     Section 3.3.   INCENTIVE STOCK OPTION PRICE.  The Option Price per share of
Common Stock deliverable upon the exercise of an Incentive Stock Option shall be
at least 100% of the Fair Market Value of a share of Common Stock on the date
the Incentive Stock Option is granted; provided, however, the Option Price per
share of Common Stock deliverable upon the exercise of an Incentive Stock Option
granted to any owner of 10% or more of the total combined voting power of all
classes of stock of the Company and its subsidiaries shall be at least 110% of
the fair market value of a share of Common Stock on the date the Incentive Stock
Option is granted.

     Section 3.4.   TERM AND EXERCISE.  Each Incentive Stock Option shall not be
exercisable prior to six months from the date of its grant unless a shorter
period is provided by the Committee or another Section of this Plan, and may be
exercised during the period established by the Committee, but not after ten
years from the date of grant


                                          6
<PAGE>

thereof (the "Option Term").  No Incentive Stock Option shall be exercisable
after the expiration of its Option Term.

     Section 3.5.   MAXIMUM AMOUNT OF INCENTIVE STOCK OPTION GRANT.  To the 
extent that the aggregate Fair Market Value (determined at the time the 
respective Incentive Stock Option is granted) of Common Stock with respect to 
which Incentive Stock Options granted are exercisable for the first time by 
an individual during any calendar year under all incentive stock option plans 
of the Company and its parent and subsidiary corporations exceeds $100,000, 
such Incentive Stock Options shall be treated as Options which do not 
constitute Incentive Stock Options.

     Section 3.6.   DEATH OF OPTIONEE.  Unless otherwise provided in an Award
Agreement:

     (a)  Upon the death of the Optionee, any Incentive Stock Option exercisable
by the Optionee on the date of termination of employment may be exercised by the
Optionee's estate or by a person who acquires the right to exercise such
Incentive Stock Option by bequest or inheritance or by reason of the death of
the Optionee, provided that such exercise occurs within both the remaining
option term of the Incentive Stock Option and one year after the Optionee's
death.

     (b)  The provisions of this Section shall apply notwithstanding the fact
that the Optionee's employment may have terminated prior to death.

     Section 3.7.   RETIREMENT OR DISABILITY.  Unless otherwise provided in an
Award Agreement, upon the termination of the Optionee's employment by reason of
permanent disability or retirement (as each is determined by the Committee), the
Optionee may, within 36 months from the date of such termination of employment,
exercise any Incentive Stock Options to the extent such Incentive Stock Options
were exercisable at the date of such termination of employment.  Notwithstanding
the foregoing, the tax treatment available pursuant to Section 422 of the Code
upon the exercise of an Incentive Stock Option will not be available to an
Optionee who exercises any Incentive Stock Options more than (i) 12 months after
the date of termination of employment due to permanent disability or (ii) three
months after the date of termination of employment due to retirement.

     Section 3.8.   TERMINATION FOR OTHER REASONS.  Except as provided in
Sections 3.6 and 3.7 or except as otherwise determined by the Committee, all
Incentive Stock Options shall terminate three months after the date of the
termination of the Optionee's employment and shall be exercisable during such
period only to the extent exercisable on the date of termination of employment.

     Section 3.9.   APPLICABILITY OF STOCK OPTIONS SECTIONS.  Sections 2.5,
Manner of Payment; 2.6, Delivery of Shares; 2.8, Tax Elections and 2.9, Effect
of Exercise,


                                          7
<PAGE>

applicable to Stock Options, shall apply equally to Incentive Stock Options.
Such Sections are incorporated by reference in this Article III as though fully
set forth herein.

                            ARTICLE IV.  RELOAD OPTIONS

     Section 4.1.   AUTHORIZATION OF RELOAD OPTIONS.  Concurrently with or
subsequent to the award of Stock Options to any  Participant in the Plan, the
Committee may authorize reload options ("Reload Options") to purchase shares of
Common Stock.  The number of Reload Options shall equal (i) the number of shares
of Common Stock used to pay the exercise price of the underlying Stock Options
or Incentive Stock Options and (ii) to the extent authorized by the Committee,
the number of shares of Common Stock withheld by the Company in payment of the
exercise price underlying the Stock Option or Incentive Stock Option or used to
satisfy any tax withholding requirement incident to the exercise of the
underlying Stock Options or Incentive Stock Options.  The grant of a Reload
Option will become effective upon the exercise of underlying Stock Options,
Incentive Stock Options, or Reload Options through the use of shares of Common
Stock held by the Optionee or the withholding of shares by the Company in
payment of the exercise price of the underlying Stock Option or Incentive Stock
Option held by the Optionee.  Notwithstanding the fact that the underlying
option may be an Incentive Stock Option, a Reload Option is not intended to
qualify as an "incentive stock option" under Section 422 of the Code.

     Section 4.2.   RELOAD OPTION AMENDMENT.  Each Award Agreement shall state
whether the Committee has authorized Reload Options with respect to the Stock
Options and/or Incentive Stock Options covered by such Award Agreement.  Upon
the exercise of an underlying Stock Option, Incentive Stock Option, or other
Reload Option, the Reload Option will be evidenced by an amendment to the
underlying Award Agreement in such form as the Committee shall approve.

     Section 4.3.   RELOAD OPTION PRICE.  The  Option Price per share of Common
Stock deliverable upon the exercise of a Reload Option shall be the  Fair Market
Value of a share of Common Stock on the date the grant of the Reload Option
becomes effective.

     Section 4.4.   TERM AND EXERCISE.  Each Reload Option is fully exercisable
six months from the effective date of grant.  The term of each Reload Option
shall be equal to the remaining option term of the underlying Stock Option
and/or Incentive Stock Option.

     Section 4.5.   TERMINATION OF EMPLOYMENT.  Unless otherwise determined by
the Committee in an Award Agreement or otherwise, no additional Reload Options
shall be granted to Optionees when Stock Options, Incentive Stock Options,
and/or Reload Options are exercised pursuant to the terms of this Plan following
termination of the Optionee's employment.


                                          8
<PAGE>

     Section 4.6.   APPLICABILITY OF STOCK OPTIONS SECTIONS.  Sections 2.5,
Manner of Payment; 2.6 Delivery of Shares; 2.7, Death, Retirement and
Termination of Employment of Optionee; 2.8, Tax Elections; and 2.9, Effect of
Exercise, applicable to Stock Options, shall apply equally to Reload Options.
Such Sections are incorporated by reference in this Article IV as though fully
set forth herein.

                     ARTICLE V.  ALTERNATE APPRECIATION RIGHTS

     Section 5.1.   AWARD OF ALTERNATE APPRECIATION RIGHTS.  Concurrently with
or subsequent to the award of any Stock Option, Incentive Stock Option, or
Reload Option to purchase one or more shares of Common Stock, the Committee may,
subject to the provisions of the Plan and such other terms and conditions as the
Committee may prescribe, award to the Optionee with respect to each share of
Common Stock covered by an Option, a related alternate appreciation right
permitting the Optionee to be paid the appreciation on the Option in lieu of
exercising the Option ("Alternate Appreciation Right").

     Section 5.2.   ALTERNATE APPRECIATION RIGHTS AGREEMENT.  Alternate
Appreciation Rights shall be evidenced by written Award Agreements in such form
as the Committee may from time to time determine.

     Section 5.3.   EXERCISE.  An Optionee who  has been granted Alternate
Appreciation Rights may, from time to time, in lieu of the exercise of an equal
number of Options, elect to exercise one or more Alternate Appreciation Rights
and thereby become entitled to receive from the Company payment in Common Stock
of the number of shares determined pursuant to Section 5.4 and 5.5.  Alternate
Appreciation Rights shall be exercisable only to the same extent and subject to
the same conditions as the Options related thereto are exercisable, as provided
in this Plan.  The Committee may, in its discretion, prescribe additional
conditions to the exercise of any Alternate Appreciation Rights.

     Section 5.4.   AMOUNT OF PAYMENT.  The amount of payment to which an
Optionee shall be entitled upon the exercise of each Alternate Appreciation
Right shall be equal to 100% of the amount, if any, by which the Fair Market
Value of a share of Common Stock on the exercise date exceeds the Option Price
per share on the Option related to such Alternate Appreciation Right.  A Section
16(a) Option Holder may elect to withhold shares of Common Stock issued under
this Section to pay taxes as described in Section 2.8.

     Section 5.5.   FORM OF PAYMENT.  The number of shares to be paid shall be
determined by dividing the amount of payment determined pursuant to Section 5.4
by the Fair Market Value of a share of Common Stock on the exercise date of such
Alternate Appreciation Rights.  As soon as practicable after exercise, the
Company shall deliver to the Optionee a certificate or certificates for such
shares of Common Stock.


                                          9
<PAGE>

     Section 5.6.   EFFECT OF EXERCISE.  Unless otherwise provided in an Award
Agreement or agreed to by the Committee, the exercise of any Alternate
Appreciation Rights shall cancel an equal number of Stock Options, Incentive
Stock Options, Reload Options, and Limited Rights, if any, related to said
Alternate Appreciation Rights.

     Section 5.7.   TERMINATION OF EMPLOYMENT, RETIREMENT, DEATH OR DISABILITY.
Unless otherwise provided in an Award Agreement or agreed to by the Committee:

          (a)    Upon termination of the Optionee's employment (including
     employment as a director of the Company after an Optionee terminates
     employment as an employee of the Company) by reason of permanent disability
     or retirement (as each is determined by the Committee) or consulting, the
     Optionee may, within six months from the date of such termination, exercise
     any Alternate Appreciation Rights to the extent such Alternate Appreciation
     Rights are exercisable during such six-month period.

          (b)    Except as provided in Section 5.7(a), all Alternate
     Appreciation Rights shall terminate three months after the date of the
     termination of the Optionee's employment, consulting or upon the death of
     the Optionee.

                            ARTICLE VI.  LIMITED RIGHTS

     Section 6.1.   AWARD OF LIMITED RIGHTS.  Concurrently with or subsequent to
the award of any Stock Option, Incentive Stock Option, Reload Option, or
Alternate Appreciation Right, the Committee may, subject to the provisions of
the Plan and such other terms and conditions as the Committee may prescribe,
award to the Optionee with respect to each share of Common Stock covered by an
Option, a related limited right permitting the Optionee, during a specified
limited time period, to be paid the appreciation on the Option in lieu of
exercising the Option ("Limited Right").

     Section 6.2.   LIMITED RIGHTS AGREEMENT.  Limited Rights granted under the
Plan shall be evidenced by written Award Agreements in such form as the
Committee may from time to time determine.

     Section 6.3.   EXERCISE PERIOD.  Limited Rights are exercisable in full 
for a period of seven months following the date of a Change in Control of the 
Company (the "Exercise Period"); provided, however, that Limited Rights may 
not be exercised under any circumstances until the expiration of the 
six-month period following the date of grant.

     Section 6.4.   AMOUNT OF PAYMENT.  The amount of payment to which an
Optionee shall be entitled upon the exercise of each Limited Right shall be
equal to 100% of the amount, if any, which is equal to the difference between
the  Option Price per share of Common Stock covered by the related Option and
the Market Price of a share of such Common Stock.  "Market Price" is defined to
be the greater of (i) the highest price per share of the Company's Common Stock
paid in connection with any Change in Control and (ii) the highest price per


                                          10
<PAGE>

share of the Company's Common Stock reflected in the consolidated trading tables
of THE WALL STREET JOURNAL (presently the New York Stock Exchange - Composite
Transactions) during the 60-day period prior to the Change in Control.

     Section 6.5.   FORM OF PAYMENT.  Payment of the amount to which an Optionee
is entitled upon the exercise of Limited Rights, as determined pursuant to
Section 6.4, shall be made solely in cash.

     Section 6.6.   EFFECT OF EXERCISE.  If Limited Rights are exercised, the
Stock Options, Incentive Stock Options, Reload Options, and Alternate
Appreciation Rights, if any, related to such Limited Rights shall cease to be
exercisable to the extent of the number of shares with respect to which the
Limited Rights were exercised.  Upon the exercise or termination of the Stock
Options, Incentive Stock Options, Reload Options, and Alternate Appreciation
Rights, if any, related to such Limited Rights, the Limited Rights granted with
respect thereto terminate to the extent of the number of shares as to which the
related options and Alternate Appreciation Rights were exercised or terminated.

     Section 6.7.   RETIREMENT OR DISABILITY.  Upon termination of the
Optionee's employment (including employment as a director of the Company after
an Optionee terminates employment as an  employee of the Company) by reason of
permanent disability or retirement (as each is determined by the Committee) or
consulting, the Optionee may, within six months from the date of such
termination, exercise any Limited Right to the extent such Limited Right is
exercisable during such six-month period.

     Section 6.8.   DEATH OF OPTIONEE OR TERMINATION FOR OTHER REASONS.  Except
as provided in Sections 6.7 and 6.9, or except as otherwise determined by the
Committee, all Limited Rights granted under the Plan shall terminate upon the
termination of the Optionee's employment, consulting or upon the death of the
Optionee.

     Section 6.9.   TERMINATION RELATED TO A CHANGE IN CONTROL.  The requirement
that an Optionee be terminated by reason of retirement or permanent disability
or be employed by the Company at the time of exercise pursuant to Sections 6.7
and 6.8, respectively, is waived during the Exercise Period as to an Optionee
who (i) was employed by the Company at the time of the Change in Control and
(ii) is subsequently terminated by the Company other than for just cause or who
voluntarily terminates if such termination was the result of a good faith
determination by the Optionee that as a result of the Change in Control he is
unable to effectively discharge his present duties or the duties of the position
which he occupied just prior to the Change in Control.  As used herein "just
cause" shall mean willful misconduct or dishonesty or conviction of or failure
to contest prosecution for a felony, or excessive absenteeism unrelated to
illness.



                                          11
<PAGE>

                         ARTICLE VII.  SUBSTITUTION AWARDS

     Section 7.1.   Awards may be granted under the Plan from time to time in
substitution for stock options held by individuals employed by corporations who
become employees of the Company as a result of a merger or consolidation of the
employing corporation with the Company, or the acquisition by the Company of the
assets of the employing corporation, or the acquisition by the Company of stock
of the employing corporation with the result that such employing corporation
becomes a Subsidiary or an Affiliate.

                         ARTICLE VIII.  BONUS STOCK AWARDS

     Section 8.1.   AWARD OF BONUS STOCK.  The Committee may from time to 
time, and subject to the provisions of this Plan and such other terms and 
conditions as the Committee may prescribe, grant to any  Participant in the 
Plan shares of Common Stock ("Stock Bonus"). A Stock Bonus shall vest (i) in 
the case of performance-based vesting criteria, no sooner than one year 
following the date of the Stock Bonus grant, and (ii) in the case of 
time-based vesting criteria, no sooner than one-third of the grant on each 
subsequent anniversary of the date of grant. Notwithstanding the foregoing, 
the Committee may grant a fully vested Stock Bonus in lieu of an earned cash 
bonus.

     Section 8.2.   STOCK BONUS AGREEMENTS.  The grant of a Stock Bonus shall be
evidenced by a written Award Agreement, executed by the Company and the
recipient of a Stock Bonus, in such form as the Committee may from time to time
determine, providing for the terms of such grant, including any vesting
schedule, restrictions on the transfer of such Common Stock or other matters.



                             ARTICLE IX.  MISCELLANEOUS

     Section 9.1.   GENERAL RESTRICTION.  Each Award under the Plan shall be
subject to the requirement that, if at any time the Committee shall determine
that (i) the listing, registration, or qualification of the shares of Common
Stock subject to or related thereto upon any securities exchange or under any
state or federal law, or (ii) the consent or approval of any government
regulatory body, or (iii) an agreement by the grantee of an Award with respect
to the disposition of shares of Common Stock, is necessary or desirable as a
condition of, or in connection with, the granting of such Award or the issue or
purchase of shares of Common Stock thereunder, such Award may not be consummated
in whole or in part unless such listing, registration, qualification, consent,
approval or agreement shall have been effected or obtained free of any
conditions not acceptable to the Committee.

     Section 9.2.   NON-ASSIGNABILITY.  Except as provided below, no Award under
the Plan shall be assignable or transferable by the recipient thereof, except by
will or by the laws of descent and distribution, and during the life of the
recipient, such Award shall be exercisable only by such person or by such
person's guardian or legal representative.


                                          12
<PAGE>

     Notwithstanding the foregoing, as provided by the Committee in an Award
Agreement, Awards (other than Incentive Stock Options) may be transferred (in
whole or in part in a form approved by the Company) by a Participant to (i) the
spouse, children or grandchildren of the Participant ("Immediate Family
Members"), (ii) a trust or trusts for the exclusive benefit of the Immediate
Family Members and, if applicable, the Participant, or (iii) a partnership in
which such Immediate Family Members and, if applicable, the Participant are the
only partners.  Following any such transfer, the Award shall continue to be
subject to the same terms and conditions as were applicable to the Award
immediately prior to the transfer.  A transferee of an Award may not transfer
the Award except to an Immediate Family Member or the Participant.

     Section 9.3.   WITHHOLDING TAXES.  Whenever the Company proposes or is
required to issue or transfer shares of Common Stock under the Plan, the Company
shall have the right to require the grantee to remit to the Company an amount
sufficient to satisfy any federal, state and/or local withholding tax
requirements prior to the delivery of any certificates for such shares.
Alternatively, the Company may issue or transfer such shares of the Company net
of the number of shares sufficient to satisfy the withholding tax requirements.
For withholding tax purposes, the shares of Common Stock shall be valued on the
date the withholding obligation is incurred.

     Section 9.4.   RIGHT TO TERMINATE EMPLOYMENT.  Nothing in the Plan or in
any agreement entered into pursuant to the Plan shall confer upon any
Participant the right to continue in the employment of, or consulting to, the
Company or effect any right which the Company may have to terminate the
employment or consulting relationship of such  Participant.

     Section 9.5.   NON-UNIFORM DETERMINATION.  The Committee's determinations
under the Plan (including without limitation determinations of the persons to
receive Awards, the form, amount and timing of such Awards, the terms and
provisions of such Awards and the agreements evidencing same) need not be
uniform and may be made by it selectively among persons who receive, or are
eligible to receive, awards under the Plan, whether or not such persons are
similarly situated.

     Section 9.6.   RIGHTS AS A SHAREHOLDER.  The recipient of any Award under
the Plan shall have no right as a shareholder with respect thereto unless and
until certificates for shares of Common Stock are issued to him.

     Section 9.7.   DEFINITIONS.  In this Plan the following definitions shall
apply:

          (a)    "Subsidiary" means any corporation of which, at the time more
     than 50% of the shares entitled to vote generally in an election of
     directors are owned directly or indirectly by the Company or any 
     subsidiary thereof.

                                          13
<PAGE>

          (b)    "Affiliate" means any person or entity which directly, or
     indirectly through one or more intermediaries, controls, is controlled by,
     or is under common control with the Company.

          (c)    "Fair Market Value" as of any date and in respect or any share
     of Common Stock means the lowest reported trading price on such date or on
     the next business day, if such date is not a business day, of a share of
     Common Stock reflected in the consolidated trading tables of THE WALL
     STREET JOURNAL (presently the New York Stock Exchange - Composite
     Transactions) or any other publication selected by the Committee, provided
     that, if shares of Common Stock shall not have been quoted on the New York
     Stock Exchange for more than 10 days immediately preceding such date or if
     deemed appropriate by the Committee for any other reason, the fair market
     value of shares of Common Stock shall be as determined by the Committee in
     such other manner as it may deem appropriate.  In no event shall the Fair
     Market Value of any share of Common Stock be less than its par value.

          (d)    "Option" means Stock Option, Incentive Stock Option, or Reload
     Option.

          (e)    "Option  Price" means the purchase price per share of the
     Common Stock deliverable upon the exercise of a Stock Option, Incentive
     Stock Option, or Reload Option.

          (f)    "Change in Control" means the occurrence, at any time during
     the specified term of an Option granted under the Plan, of any of the
     following events:

                 (i)   The Company is merged or consolidated or reorganized
     into or with another corporation or other legal person (an "Acquiror") and
     as a result of such merger, consolidation or reorganization less than 75%
     of the outstanding voting securities or other capital interests of the
     surviving, resulting or acquiring corporation or other legal person are
     owned in the aggregate by the stockholders of the Company, directly or
     indirectly, immediately prior to such merger, consolidation or
     reorganization, other than the Acquiror or any corporation or other legal
     person controlling, controlled by or under common control with the
     Acquiror;


                                          14
<PAGE>

                 (ii)  The Company sells all or substantially all of its
     business and/or assets to an Acquiror, of which less than 75% of the
     outstanding voting securities or other capital interests are owned in the
     aggregate by the stockholders of the Company, directly or indirectly,
     immediately prior to such sale, other than any corporation or other legal
     person controlling, controlled by or under common control with the
     Acquiror;

                 (iii) There is a report filed on Schedule 13D or Schedule
     14D-1 (or any successor schedule, form or report), each as promulgated
     pursuant to the Securities Exchange Act of 1934, as amended (the "Exchange
     Act"), disclosing that any person or group (as the terms "person" and
     "group" are used in Section 13(d)(3) or Section 14(d)(2) of the Exchange
     Act and the rules and regulations promulgated thereunder) has become the
     beneficial owner (as the term "beneficial owner") is defined under
     Rule 13d-3 or any successor rule or regulation promulgated under the
     Exchange Act) of 20% or more of the issued and outstanding shares of voting
     securities of the Company; or

                 (iv)  During any period of two consecutive years, individuals
     who at the beginning of any such period constitute the directors of the
     Company cease for any reason to constitute at least a majority thereof
     unless the election, or the nomination for election by the Company's
     stockholders, of each new director of the Company was approved by a vote of
     at least two-thirds of such directors of the Company then still in office
     who were directors of the Company at the beginning of any such period.

     Section 9.8.   LEAVES OF ABSENCE.  The Committee shall be entitled to make
such rules, regulations, and determinations as it deems appropriate under the
Plan in respect of any leave of absence taken by the recipient of any Award.
Without limiting the generality of the foregoing, the Committee shall be
entitled to determine (i) whether or not any such leave of absence shall
constitute a termination of employment within the meaning of the Plan and (ii)
the impact, if any, of any such leave of absence on Awards under the Plan
theretofore made to any recipient who takes such leave of absence.

     Section 9.9.   NEWLY ELIGIBLE EMPLOYEES.  The Committee shall be entitled
to make such rules, regulations, determinations and awards as it deems
appropriate in respect of any employee who becomes eligible to participate in
the Plan or any portion thereof after the commencement of an award or incentive
period.

     Section 9.10.   ADJUSTMENTS.  In any event of any change in the outstanding
Common Stock by reason of a stock dividend or distributions, recapitalization,
merger, consolidation, split-up, combination, exchange of shares or the like,
the Committee may appropriately adjust the number of shares of Common Stock that
may be issued under the Plan, the number of shares of Common Stock subject to
Options theretofore granted under the Plan, and any and all other matters deemed
appropriate by the Committee.

     Section 9.11.   CHANGES IN THE COMPANY'S CAPITAL STRUCTURE.

          (a)    The existence of outstanding Options, Alternative Appreciation
     Rights, or Limited Rights shall not affect in any way the right or power of
     the



                                          15
<PAGE>

     Company or its stockholders to make or authorize any or all adjustments,
     recapitalizations, reorganizations, or other changes in the Company's
     capital structure or its business, or any merger or consolidation of the
     Company, or any issue of bonds, debentures, preferred or prior preference
     stock ahead of or affecting the Common Stock or the rights thereof, or the
     dissolution or liquidation of the Company, or any sale or transfer of all
     or any part of its assets or business, or any other corporate act or
     proceeding, whether of a similar character or otherwise.

          (b)    If, while there are outstanding Options, the Company shall 
     effect a subdivision or consolidation of shares or other increase or 
     reduction of the number of shares of the Common Stock outstanding without 
     receiving compensation therefor in money, services or property, then 
     (i) in the event of an increase in the number of such shares outstanding, 
     the number of shares of Common Stock then subject to Options hereunder 
     shall be proportionately increased; and (ii) in the event of a decrease in 
     the number of such shares outstanding the number of shares then available 
     for Option hereunder shall be proportionately decreased.

          (c)    After a merger of one or more corporations into the Company, 
     or after a consolidation of the Company and one or more corporations in 
     which the Company shall be the surviving corporation, each holder of an 
     outstanding Option shall, at no additional cost, be entitled upon exercise 
     of such Option to receive (subject to any required action by stockholders) 
     in lieu of the number of shares as to which such Option shall then be so 
     exercisable, the number and class of stock or other securities to which 
     such holder would have been entitled to receive pursuant to the terms of 
     the agreement of merger or consolidation if, immediately prior to such 
     merger or consolidation, such holder had been the holder of record of a 
     number of shares of the Company equal to the number of shares as to which 
     such Option had been exercisable.

          (d)    If the Company is merged into or consolidated with another 
     corporation or other entity under circumstances where the Company is not 
     the surviving corporation, or if the Company sells or otherwise disposes 
     of substantially all of its assets to another corporation or other entity 
     while unexercised Options remain outstanding, then the Committee may 
     direct that any of the following shall occur:

                 (i)   If the successor entity is willing to assume the
          obligation to deliver shares of stock or securities after the
          effective date of the merger, consolidation or sale of assets, as the
          case may be, each holder of an outstanding Option shall be entitled to
          receive, upon the exercise of such Option and payment of the  Option
          Price, in lieu of shares of Common Stock, such shares of stock or
          other securities as the holder of such Option



                                          16
<PAGE>

          would have been entitled to receive had such Option been exercised
          immediately prior to the consummation of such merger, consolidation or
          sale, and any related Alternate Appreciation Right and Limited Right
          associated with such Option shall apply as nearly as practicable to
          the shares of stock or other securities purchasable upon exercise of
          the Option following such merger, consolidation or sale of assets.

                 (ii)  The Committee may waive any limitations set forth in or
          imposed pursuant to this Plan or any Award Agreement with respect to
          such Option and any related Alternate Appreciation Right or Limited
          Option such that such Option and related Alternate Appreciation Right
          and Limited Right shall become exercisable prior to the record or
          effective date of such merger, consolidation or sale of assets.

                 (iii) The Committee may cancel all outstanding Options and
          Alternate Appreciation Rights (but not Limited Rights) as of the
          effective date of any such merger, consolidation, or sale of assets
          provided that prior notice of such cancellation shall be given to each
          holder of an Option at least 30 days prior to the effective date of
          such merger, consolidation, or sale of assets, and each holder of an
          Option shall have the right to exercise such Option and any related
          Alternate Appreciation Right in full during a period of not less than
          30 days prior to the effective date of such merger, consolidation, or
          sale of assets.  No action taken by the Committee under this
          subsection shall have the effect of terminating, and nothing in this
          subsection shall permit the Committee to terminate, any Limited Right
          held by an Optionee.

          (c)    Except as herein provided, the issuance by the Company of 
     Common Stock or any other shares of capital stock or services convertible 
     into shares of capital stock, for cash property, labor done or other 
     consideration, shall not affect, and no adjustment by reason thereof shall 
     be made with respect to, the number or price of shares of Common Stock 
     then subject to outstanding Options.

     Section 9.12.   CHANGE IN CONTROL.  Any Award granted under the Plan prior
to the date of a Change in Control shall be immediately exercisable in full on
such date, without regard to any times of exercise established under its Award
Agreement; provided, however, in no event shall Stock Options or Incentive Stock
Options be exerciseable after the tenth anniversary of their respective grant
dates.

     Section 9.13.   AMENDMENT OF THE PLAN.

          (a)    The Committees may without further action by the shareholders
     and without receiving further consideration from the Participants, amend
     this Plan or condition or modify Awards under this Plan in response to
     changes in



                                          17
<PAGE>

     securities or other laws or rules, regulations or regulatory
     interpretations thereof applicable to this Plan or to comply with stock
     exchange rules or requirements.

          (b)    The Committee may at any time and from time to time terminate
     or modify or amend the Plan in any respect, except that without shareholder
     approval the Committee may not (i) increase the maximum number of shares of
     Common Stock which may be issued under the Plan (other than increases
     pursuant to Section 9.10), (ii) extend the period during which any Award
     may be granted or exercised, (iii) extend the term of the Plan, (iv) 
     change the class of eligible Participants in the Plan, or (v) materially 
     increase benefits available to Participants under the Plan if such 
     increase would require shareholder approval pursuant to the listed company 
     rules of the New York Stock Exchange, Inc. as such rules may be amended 
     from time to time.  The termination or any modification or amendment of 
     the Plan, except as provided in subsection (a), shall not, without the 
     consent of a Participant, affect his or her rights under an Award 
     previously granted to him or her.

     Section 9.14.   EFFECTIVE DATE.  The Plan, as amended as of July 6, 
1998, shall become effective as of July 6, 1998.

                                          18

<PAGE>

                                                                  EXHIBIT 12

                               WASTE MANAGEMENT, INC.
                                          
                 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                           (IN THOUSANDS, EXCEPT RATIOS)
                                    (UNAUDITED)
 
<TABLE>
                                                   Six Months Ended June 30,
                                                   -------------------------
                                                      1998           1997
                                                    --------       --------
<S>                                                 <C>            <C>
Income before income taxes                          $413,450       $243,159
                                                    --------       --------
Fixed charges deducted from income:
  Interest expense                                    91,161         41,272
  Implicit interest in rents                           4,540          3,158
                                                    --------       --------
                                                      95,701         44,430
                                                    --------       --------
     Earnings available for fixed charges           $509,151       $287,589
                                                    --------       --------
                                                    --------       --------

Interest expense                                    $ 91,161       $ 41,272
Capitalized interest                                  14,261         11,674
Implicit interest in rents                             4,540          3,158
                                                    --------       --------
     Total fixed charges                            $109,962       $ 56,104
                                                    --------       --------
                                                    --------       --------
     Ratio of earnings to fixed charges                  4.6x           5.1x
                                                    --------       --------
                                                    --------       --------
</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF WASTE MANAGEMENT, INC. FOR THE SIX MONTHS ENDED JUNE 30,
1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                      44,990,000
<SECURITIES>                                         0
<RECEIVABLES>                              595,133,000
<ALLOWANCES>                              (45,291,000)
<INVENTORY>                                          0
<CURRENT-ASSETS>                               775,669
<PP&E>                                   6,119,371,000
<DEPRECIATION>                           (996,254,000)
<TOTAL-ASSETS>                           8,374,800,000
<CURRENT-LIABILITIES>                      575,393,000
<BONDS>                                  4,050,989,000
                                0
                                          0
<COMMON>                                     2,237,000
<OTHER-SE>                               2,947,990,000
<TOTAL-LIABILITY-AND-EQUITY>             8,374,800,000
<SALES>                                  1,651,484,000
<TOTAL-REVENUES>                         1,651,484,000
<CGS>                                      835,255,000
<TOTAL-COSTS>                            1,191,872,000
<OTHER-EXPENSES>                          (44,999,000)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                          91,161,000
<INCOME-PRETAX>                            413,450,000
<INCOME-TAX>                               165,380,000
<INCOME-CONTINUING>                        248,070,000
<DISCONTINUED>                                       0
<EXTRAORDINARY>                              3,900,000
<CHANGES>                                            0
<NET-INCOME>                               244,170,000
<EPS-PRIMARY>                                     1.12
<EPS-DILUTED>                                     1.04
        

</TABLE>


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