USA WASTE SERVICES INC
8-K, 1996-05-22
REFUSE SYSTEMS
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<PAGE>   1
================================================================================

                                 UNITED STATES
                     SECURITIES  AND  EXCHANGE  COMMISSION
                            WASHINGTON, D.C.  20549

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

                                   FORM  8-K


                                 CURRENT REPORT
     PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

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

         DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): MAY 7, 1996


                            USA WASTE SERVICES, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)



<TABLE>
 <S>                                                                                  <C>
           DELAWARE                                 1-12154                                    73-1309529
 (STATE OR OTHER JURISDICTION              (COMMISSION FILE NUMBER)                         (I.R.S. EMPLOYER
      OF INCORPORATION)                                                                   IDENTIFICATION NO.)



                         5400 LBJ FREEWAY
                       SUITE 300 - TOWER ONE
                          DALLAS, TEXAS                                                  75240
             (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                                 (ZIP CODE)
</TABLE>


       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (214) 383-7900


================================================================================
<PAGE>   2
ITEM 2.   ACQUISITION OR DISPOSITION OF ASSETS

         On May 7, 1996, pursuant to the Agreement and Plan of Reorganization,
dated as of December 18, 1995, as amended (the "Merger Agreement"), by and
among USA Waste Services, Inc. ("USA Waste"), Riviera Acquisition Corporation
("Acquisition"), a wholly owned subsidiary of USA Waste, and Western Waste
Industries ("Western"), Acquisition merged with and into Western, whereupon
Western became a wholly owned subsidiary of USA Waste (the "Merger").
Western's common stock, no par value ("Western Common Stock"), is no longer
transferable, and certificates evidencing shares of Western Common Stock
represent only the right to receive, without interest, shares of USA Waste
Common Stock, par value $0.01 per share ("USA Waste Common Stock"), in
accordance with the provisions of the Merger Agreement.  The holders of shares
of Western Common Stock (the "Western Shareholders") are entitled to receive
1.50 (the "Exchange Ratio") shares of USA Common Stock for each share of
Western Common Stock held, or an aggregate of approximately 21.7 million shares
of USA Waste Common Stock.  Also pursuant to the Merger Agreement, each
unexpired and unexercised outstanding option to purchase Western Common Stock
(each a "Western Option") was automatically converted into an option to
purchase that number of shares of USA Waste Common Stock equal to the number of
shares of Western Common Stock that could have been purchased under the Western
Option multiplied by the Exchange Ratio, at a price per share of USA Waste
Common Stock equal to the option exercise price determined pursuant to the
Western Option divided by the Exchange Ratio.  The stockholders of USA Waste
(the "USA Waste Stockholders") and the Western Shareholders approved the Merger
on May 7, 1996.  The Exchange Ratio was determined through negotiations between
the managements of USA Waste and Western and was approved by their respective
boards of directors.  Cash will be paid in lieu of fractional shares of USA
Waste Common Stock (on the basis of $25.625 per share).  Pursuant to the Merger
Agreement, no interest will be paid or accrued on the consideration paid in the
Merger.  The Merger was accounted for as a pooling of interests.

         Western is a provider of integrated waste services to commercial,
industrial and residential customers.  These services consist of the
collection, transfer and disposal of solid waste in California, Texas,
Louisiana, Florida, Colorado and Arkansas.  Western has 91 municipal and
regional authority contracts and serves over 785,000 customers.  As part of its
business, Western operates six landfills, three transfer stations and five
recycling facilities.  Western is continuing such operations as a wholly owned
subsidiary of USA Waste.

ITEM 5.  OTHER EVENTS.

         On May 7, 1996, in connection with the acquisition of Western, USA
Waste replaced its existing credit facility with a $750 million senior
revolving credit facility (the "Credit Facility") with a consortium of banks
including The First National Bank of Boston, Bank of America Illinois and
Morgan Guaranty Trust Company.  The Credit Facility is for a term of five years
and will be available for standby letters of credit of up to $300 million.
Loans under the Credit Facility bear interest at a rate based on the Eurodollar
rate plus a spread not to exceed 0.75% per annum, which spread is initially set
at 0.405% per annum.  The Credit Facility requires a facility fee, initially
set at 0.22% per annum, not to exceed 0.38% per annum on the entire available
credit facility.  No principal reductions are required for a three-year period.
USA Waste plans to use the funds available under the Credit Facility to
refinance existing bank loans and letters of credit, to fund additional
acquisitions and to provide working capital for the company's business.


ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS.

(a)      Financial Statements of Businesses Acquired.

         At this time, it is impracticable to provide the required financial
statements of Western.  The required information will be filed no later than 60
days after the filing of this Report on Form 8-K.

(b)      Pro Forma Financial Information.

         At this time, it is impracticable to provide the required pro forma
financial information of USA Waste and Western.  The required information will
be filed no later than 60 days after the filing of this Report on Form 8-K.




                                     -2-
<PAGE>   3
(c)      Exhibits.

<TABLE>
<CAPTION>
Exhibit Number   Description
- --------------   -----------
<S>              <C>
2.1              Agreement and Plan of Merger, dated as of December 18, 1995, by and among USA Waste
                 Services, Inc., Riviera Acquisition Corporation and Western Waste Industries (included
                 as Appendix A in Registration Statement on Form S-4 (Registration No. 333-02181) and
                 incorporated herein by reference).
                 
*2.2             Amendment No. 1 to Agreement and Plan of Merger, dated May 1, 1996, by and among USA
                 Waste Services, Inc., Riviera Acquisition Corporation and Western Waste Industries.
                 
*10.1            Revolving Credit Agreement by and among USA Waste Services, Inc., The First National
                 Bank of Boston, Bank of America Illinois, Morgan Guaranty Trust Company of New York
                 and other financial institutions, dated as of May 7, 1996.
                 
*99.1            Press Release, dated May 7, 1996, relating to closing of the Merger and new revolving
                 credit agreement.
</TABLE>

- -----------------------
* Filed herewith.




                                     -3-
<PAGE>   4

                                   SIGNATURES


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


                                        USA WASTE SERVICES, INC.




Dated:   May 22, 1996                  By:  /s/ Bruce E. Snyder
                                            -----------------------------------
                                            Bruce E. Snyder
                                            Vice President-Controller,
                                            Chief Accounting Officer




                                     -4-
<PAGE>   5
                                 EXHIBIT INDEX


<TABLE>
<CAPTION>
                                                                                                Sequentially
   Exhibit No.                            Description                                          Numbered Page
   -----------                            -----------                                          -------------
      <S>            <C>                                                                       <C>
       2.1           Agreement and Plan of Merger, dated as of December 18, 1995,
                     by and among USA Waste Services, Inc., Riviera Acquisition
                     Corporation and Western Waste Industries (included as Appendix
                     A in Registration Statement on Form S-4 (Registration No. 333-02181)
                     and incorporated herein by reference).

      *2.2           Amendment No. 1 to Agreement and Plan of Merger, dated May 1,
                     1996, by and among USA Waste Services, Inc., Riviera Acquisition
                     Corporation and Western Waste Industries.

     *10.1           Revolving Credit Agreement by and among USA Waste Services, Inc.,
                     The First National Bank of Boston, Bank of America Illinois,
                     Morgan Guaranty Trust Company of New York and other financial
                     institutions, dated as of May 7, 1996.

     *99.1           Press Release, dated May 7, 1996, relating to closing of the Merger
                     and new revolving credit agreement.
</TABLE>






<PAGE>   1

                                                                    EXHIBIT 2.2

                                AMENDMENT NO. 1
                                       TO
                          AGREEMENT AND PLAN OF MERGER


                 This Amendment No. 1 to the Agreement and Plan of Merger (this
"Amendment") is made and entered this first day of May, 1996 by and between USA
Waste Services, Inc., a Delaware corporation ("Parent"), Riviera Acquisition
Corporation, a California corporation and a wholly owned subsidiary of Parent
("Subsidiary") and Western Waste Industries, a California corporation (the
"Company").

                 WHEREAS, the Parent, Subsidiary and the Company have
previously entered into an Agreement and Plan of Merger dated as of December
18, 1995 (the "Agreement")  relating to the merger of Subsidiary with and into
the Company;

                 WHEREAS, the Parent, Subsidiary and the Company desire to
amend the Merger Agreement as set forth below;

                 NOW, THEREFORE, for the mutual covenants and promises set
forth below and other good and valuable consideration, the sufficiency of which
is hereby acknowledged, Parent, Subsidiary and the Company hereby agree as
follows:

                 1. The name "Agreement and Plan of Merger" is hereby amended
to be read "Agreement and Plan of Reorganization" in each place in the
Agreement where it so reads.

                 2.  In order to effectuate the merger of Subsidiary with and
into the Company in the State of California, the parties hereto agree to
execute and deliver the Agreement of Merger attached hereto as Exhibit 1 and
have such Agreement of Merger filed, with all necessary documentation, with the
Secretary of State of the State of California as soon as practicable after the
Closing (as defined in the Agreement).

<PAGE>   2



                 IN WITNESS WHEREOF, the parties hereto have caused this
Amendment to be signed by their duly authorized representatives as of the day
and year first above written.


                                      USA WASTE SERVICES, INC.         
                                         
                                 
                                      By: /s/ John E. Drury
                                         ---------------------------------------
                                          John E. Drury, Chief Executive Officer
                                 
                                 
                                      By: /s/ Gregory T. Sangalis
                                         ---------------------------------------
                                          Gregory T. Sangalis, Secretary
                                 
                                 
                                 
                                      RIVIERA ACQUISITION CORPORATION
                                 
                                      By: /s/ John E. Drury
                                         ---------------------------------------
                                          John E. Drury, Chief Executive Officer
                                 
                                 
                                      By: /s/ Gregory T. Sangalis
                                         ---------------------------------------
                                          Gregory T. Sangalis, Secretary
                                 
                                 
                                 
                                      WESTERN WASTE INDUSTRIES
                                 
                                 
                                      By: /s/ Kosti Shirvanian
                                         ---------------------------------------
                                          Kosti Shirvanian, President and Chief
                                          Executive Officer
                                 
                                      By: /s/ Savey Tufenkian
                                         ---------------------------------------
                                          Savey Tufenkian, Secretary





                                      -2-

<PAGE>   1
                                                                    EXHIBIT 10.1


                           REVOLVING CREDIT AGREEMENT

                            DATED AS OF MAY 7, 1996

                                  BY AND AMONG
                           USA WASTE SERVICES, INC.,
                                (THE "BORROWER")

                                      AND

                       THE FIRST NATIONAL BANK OF BOSTON
                                   ("FNBB"),
                            BANK OF AMERICA ILLINOIS
                                    ("BAI")
                   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 the Administrative Agent

                                      and

                          FNBB as Documentation Agent


                      (Collectively, the "Bank Agents")




<PAGE>   2
                                      i



<TABLE>
<S>                                                                                                <C>
Section 1.  DEFINITIONS AND RULES OF INTERPRETATION.    . . . . . . . . . . . . . . . . . .         1
Section 1.1.  Definitions.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .         1
Section 1.2.  Rules of Interpretation.    . . . . . . . . . . . . . . . . . . . . . . . . .        14
Section 2.  THE SYNDICATED FACILITY.  . . . . . . . . . . . . . . . . . . . . . . . . . . .        15
Section 2.1.  Commitment to Lend Syndicated Loans.    . . . . . . . . . . . . . . . . . . .        15
Section 2.2.  Facility Fee.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        16
Section 2.3.  Reduction of Total Commitment.    . . . . . . . . . . . . . . . . . . . . . .        16
Section 2.4.  The Syndicated Notes.   . . . . . . . . . . . . . . . . . . . . . . . . . . .        16
Section 2.5.  Interest on Syndicated Loans.   . . . . . . . . . . . . . . . . . . . . . . .        17
Section 2.6.  Requests for Syndicated Loans.    . . . . . . . . . . . . . . . . . . . . . .        17
Section 2.7.  Election of Eurodollar Rate; Notice of Election; Interest Periods;
                 Minimum Amounts.     . . . . . . . . . . . . . . . . . . . . . . . . . . .        18
Section 2.8.  Funds for Syndicated Credit Loans.    . . . . . . . . . . . . . . . . . . . .        19
Section 2.9.  Maturity of the Syndicated Loans and Reimbursement Obligations.   . . . . . .        20
Section 2.10. Optional Prepayments or Repayments of Syndicated Loans. . . . . . . . . . . .        20
Section 3.  LETTERS OF CREDIT.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        20
Section 3.1.  Letter of Credit Commitments. . . . . . . . . . . . . . . . . . . . . . . . .        20
Section 3.2.  Reimbursement Obligation of the Borrower.   . . . . . . . . . . . . . . . . .        21
Section 3.3.  Obligations Absolute.   . . . . . . . . . . . . . . . . . . . . . . . . . . .        22
Section 3.4.  Reliance by the Issuing Bank.   . . . . . . . . . . . . . . . . . . . . . . .        22
Section 3.5.  Notice Regarding Letters of Credit.   . . . . . . . . . . . . . . . . . . . .        23



</TABLE>


<PAGE>   3
                                       ii

<TABLE>
<S>                                                                                                <C>

Section 3.6.  Letter of Credit Fee.   . . . . . . . . . . . . . . . . . . . . . . . . . . .        23
Section 4.  COMPETITIVE BID LOANS.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .        24
Section 4.1.  The Competitive Bid Option.   . . . . . . . . . . . . . . . . . . . . . . . .        24
Section 4.2.  Competitive Bid Loan Accounts: Competitive Bid Notes.   . . . . . . . . . . .        24
Section 4.3.  Competitive Bid Quote Request; Invitation for Competitive Bid Quotes.   . . .        25
Section 4.4.  Alternative Manner of Procedure.    . . . . . . . . . . . . . . . . . . . . .        26
Section 4.5.  Submission and Contents of Competitive Bid Quotes.    . . . . . . . . . . . .        26
Section 4.6.  Notice to Borrower.   . . . . . . . . . . . . . . . . . . . . . . . . . . . .        28
Section 4.7.  Acceptance and Notice by Company and Administrative Agent.  . . . . . . . . .        28
Section 4.8.  Allocation by Administrative Agent.   . . . . . . . . . . . . . . . . . . . .        29
Section 4.9.  Funding of Competitive Bid Loans.   . . . . . . . . . . . . . . . . . . . . .        29
Section 4.10. Funding Losses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        29
Section 4.11. Repayment of Competitive Bid Loans; Interest. . . . . . . . . . . . . . . . .        30
Section 5.  PROVISIONS RELATING TO ALL LOANS AND LETTERS OF CREDIT. . . . . . . . . . . . .        30
Section 5.1.  Payments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        30
Section 5.2.  Mandatory Repayments of the Loans.    . . . . . . . . . . . . . . . . . . . .        33
Section 5.3.  Computations.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        33
Section 5.4.  Illegality; Inability to Determine Eurodollar Rate.   . . . . . . . . . . . .        33
Section 5.5.  Additional Costs, Etc.    . . . . . . . . . . . . . . . . . . . . . . . . . .        34
Section 5.6.  Capital Adequacy.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        35
Section 5.7.  Certificate.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        36

</TABLE>




<PAGE>   4
                                      iii


<TABLE>
<S>                                                                                                <C>
Section 5.8.  Eurodollar and Competitive Bid Indemnity.   . . . . . . . . . . . . . . . . .        36
Section 5.9.  Interest on Overdue Amounts.    . . . . . . . . . . . . . . . . . . . . . . .        37
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.   . . . . . . . . . . . . . . . . . . . . . . .        39
Section 6.1.  Corporate Authority.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .        39
Section 6.2.  Governmental Approvals.   . . . . . . . . . . . . . . . . . . . . . . . . . .        40
Section 6.3.  Title to Properties; Leases.    . . . . . . . . . . . . . . . . . . . . . . .        40
Section 6.4.  Financial Statements; Solvency.   . . . . . . . . . . . . . . . . . . . . . .        40
Section 6.5.  No Material Changes, Etc.   . . . . . . . . . . . . . . . . . . . . . . . . .        41
Section 6.6.  Franchises, Patents, Copyrights, Etc.   . . . . . . . . . . . . . . . . . . .        41
Section 6.7.  Litigation.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        42
Section 6.8.  No Materially Adverse Contracts, Etc.   . . . . . . . . . . . . . . . . . . .        42
Section 6.9.  Compliance With Other Instruments, Laws, Etc.   . . . . . . . . . . . . . . .        42
Section 6.10. Tax Status.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        43
Section 6.11. No Event of Default.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .        43
Section 6.12. Holding Company and Investment Company Acts.  . . . . . . . . . . . . . . . .        43
Section 6.13. Absence of Financing Statements, Etc.   . . . . . . . . . . . . . . . . . . .        43
Section 6.14. Employee Benefit Plans.   . . . . . . . . . . . . . . . . . . . . . . . . . .        44


</TABLE>



<PAGE>   5
                                       iv


<TABLE>
<S>                                                                                       <C>      <C>
Section 6.15. [INTENTIONALLY LEFT BLANK.]   . . . . . . . . . . . . . . . . . . . . . . . .        44
Section 6.16. Environmental Compliance.   . . . . . . . . . . . . . . . . . . . . . . . . .        44
Section 6.17. [INTENTIONALLY LEFT BLANK.]   . . . . . . . . . . . . . . . . . . . . . . . .        46
Section 6.18. True Copies of Charter and Other Documents.   . . . . . . . . . . . . . . . .        46
Section 6.19. Disclosure.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        46
Section 6.20. Permits and Governmental Authority.   . . . . . . . . . . . . . . . . . . . .        47
Section 7.  AFFIRMATIVE COVENANTS OF THE BORROWER.    . . . . . . . . . . . . . . . . . . .        47
Section 7.1.  Punctual Payment.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        47
Section 7.2.  Maintenance of Office.    . . . . . . . . . . . . . . . . . . . . . . . . . .        47
Section 7.3.  Records and Accounts.   . . . . . . . . . . . . . . . . . . . . . . . . . . .        47
Section 7.4.  Financial Statements, Certificates and Information.   . . . . . . . . . . . .        48
Section 7.5.  Corporate Existence and Conduct of Business.    . . . . . . . . . . . . . . .        49
Section 7.6.  Maintenance of Properties.    . . . . . . . . . . . . . . . . . . . . . . . .        50
Section 7.7.  Insurance.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        50
Section 7.8.  Taxes.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        50
Section 7.9.  Inspection of Properties, Books and Contracts.    . . . . . . . . . . . . . .        51
Section 7.10. Compliance with Laws, Contracts, Licenses and Permits; Maintenance of
               Material Licenses and Permits.   . . . . . . . . . . . . . . . . . . . . . .        51
Section 7.11. Environmental Indemnification.  . . . . . . . . . . . . . . . . . . . . . . .        52
Section 7.12. Further Assurances.   . . . . . . . . . . . . . . . . . . . . . . . . . . . .        52
Section 7.13. Notice of Potential Claims or Litigation.   . . . . . . . . . . . . . . . . .        52
Section 7.14. Notice of Certain Events Concerning Insurance and Environmental Claims. . . .        52


</TABLE>



<PAGE>   6
                                       v


<TABLE>
<S>                                                                                                <C>
Section 7.15. Notice of Default.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        53
Section 7.16. Use of Proceeds.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        54
Section 7.17. Certain Transactions.   . . . . . . . . . . . . . . . . . . . . . . . . . . .        54
Section 8.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER.   . . . . . . . . . . . . . . . . .        54
Section 8.1.  Restrictions on Indebtedness.   . . . . . . . . . . . . . . . . . . . . . . .        54
Section 8.2.  Restrictions on Liens.    . . . . . . . . . . . . . . . . . . . . . . . . . .        55
Section 8.3.  Restrictions on Investments.    . . . . . . . . . . . . . . . . . . . . . . .        57
Section 8.4.  Mergers, Consolidations, Sales.   . . . . . . . . . . . . . . . . . . . . . .        57
Section 8.5.  Restricted Distributions and Redemptions.   . . . . . . . . . . . . . . . . .        58
Section 8.6.  Employee Benefit Plans.   . . . . . . . . . . . . . . . . . . . . . . . . . .        58
Section 8.7.  Reliance Documents.   . . . . . . . . . . . . . . . . . . . . . . . . . . . .        59
Section 9.  FINANCIAL COVENANTS OF THE BORROWER.    . . . . . . . . . . . . . . . . . . . .        59
Section 9.1.  Interest Coverage Ratio.    . . . . . . . . . . . . . . . . . . . . . . . . .        59
Section 9.2.  Debt to EBITDA Ratio.   . . . . . . . . . . . . . . . . . . . . . . . . . . .        59
Section 9.3.  Debt to Total Capitalization.   . . . . . . . . . . . . . . . . . . . . . . .        60
Section 10.  CONDITIONS TO EFFECTIVENESS.   . . . . . . . . . . . . . . . . . . . . . . . .        60
Section 10.1. Corporate Action.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        60
Section 10.2. Loan Documents, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .        60
Section 10.3. Certified Copies of Charter Documents.  . . . . . . . . . . . . . . . . . . .        60
Section 10.4. Incumbency Certificate.   . . . . . . . . . . . . . . . . . . . . . . . . . .        60
Section 10.5. Certificates of Insurance.  . . . . . . . . . . . . . . . . . . . . . . . . .        60


</TABLE>



<PAGE>   7
                                       vi


<TABLE>
<S>                                                                                                <C>
Section 10.6.  Opinions of Counsel and Permit Certificate.    . . . . . . . . . . . . . . .        61
Section 10.7.  Western Waste Merger.    . . . . . . . . . . . . . . . . . . . . . . . . . .        61
Section 10.8.  Existing Debt.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        61
Section 10.9.  Satisfactory Financial Condition.    . . . . . . . . . . . . . . . . . . . .        61
Section 10.10. Environmental Reports.   . . . . . . . . . . . . . . . . . . . . . . . . . .        61
Section 10.11. Payment of Closing Fees.   . . . . . . . . . . . . . . . . . . . . . . . . .        61
Section 11.  CONDITIONS TO ALL LOANS.   . . . . . . . . . . . . . . . . . . . . . . . . . .        62
Section 11.1.  Representations True.    . . . . . . . . . . . . . . . . . . . . . . . . . .        62
Section 11.2.  Performance; No Event of Default.    . . . . . . . . . . . . . . . . . . . .        62
Section 11.3.  No Legal Impediment.   . . . . . . . . . . . . . . . . . . . . . . . . . . .        62
Section 11.4.  Governmental Regulation.   . . . . . . . . . . . . . . . . . . . . . . . . .        62
Section 11.5.  Proceedings and Documents.   . . . . . . . . . . . . . . . . . . . . . . . .        63
Section 12.  EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENT.    . . . . . . . .        63
Section 12.1.  Events of Default and Acceleration.    . . . . . . . . . . . . . . . . . . .        63
Section 12.2.  Termination of Commitments.    . . . . . . . . . . . . . . . . . . . . . . .        66
Section 12.3.  Remedies.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        66
Section 13.  SETOFF.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        66
Section 14.  EXPENSES.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        67
Section 15.  THE BANK AGENTS.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        67
Section 15.1.  Appointment, Powers and Immunities.    . . . . . . . . . . . . . . . . . . .        67
Section 15.2.  Actions By Bank Agents.    . . . . . . . . . . . . . . . . . . . . . . . . .        68
Section 15.3.  Indemnification.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        68


</TABLE>



<PAGE>   8
                                      vii


<TABLE>
<S>                                                                                                  <C>
Section 15.4.  Reimbursement.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        69
Section 15.5.  Documents.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        69
Section 15.6.  Non-Reliance on Bank Agents and Other Banks.   . . . . . . . . . . . . . . . .        69
Section 15.7.  Resignation of Bank Agents.    . . . . . . . . . . . . . . . . . . . . . . . .        70
Section 15.8.  Action by the Banks, Consents, Amendments, Waivers, Etc.   . . . . . . . . . .        71
Section 16.    INDEMNIFICATION.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        71
Section 17.    SURVIVAL OF COVENANTS, ETC.    . . . . . . . . . . . . . . . . . . . . . . . .        72
Section 18.    ASSIGNMENT AND PARTICIPATION.    . . . . . . . . . . . . . . . . . . . . . . .        72
Section 19.    PARTIES IN INTEREST.   . . . . . . . . . . . . . . . . . . . . . . . . . . . .        74
Section 20.    NOTICES, ETC.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        74
Section 21.    MISCELLANEOUS.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        75
Section 22.    CONSENTS, ETC.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        75
Section 23.    WAIVER OF JURY TRIAL.    . . . . . . . . . . . . . . . . . . . . . . . . . . .        75
Section 24.    GOVERNING LAW.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        76
Section 25.    SEVERABILITY.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        76
Section 26.    FINAL AGREEMENT.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        76


</TABLE>

Exhibits

Exhibit A        Form of Syndicated Note
Exhibit B        Form of Competitive Bid Note
Exhibit C-1      Form of Syndicated Loan Request
Exhibit C-2      Form of Letter of Credit Request
Exhibit D        Form of Compliance Certificate
Exhibit E        Form of Assignment and Acceptance
Exhibit F        Form of Competitive Bid Quote Request
Exhibit G        Form of Invitation for Competitive Bid Quotes
Exhibit H        Form of Competitive Bid Quote
Exhibit I        Form of Notice of Competitive Bid Quote(s)

                                   Schedules

Schedule 1       Banks; Commitment Percentages





<PAGE>   9

                                     -viii-


Schedule 3.1(a)  Existing Letters of Credit
Schedule 6.7     Litigation
Schedule 6.16    Environmental Compliance
Schedule 8.1(b)  Existing Indebtedness
Schedule 8.2(a)  Existing Liens





<PAGE>   10

                                      -1-





                           REVOLVING CREDIT AGREEMENT

        This REVOLVING CREDIT AGREEMENT is made as of the 7th day of May, 1996,
by and among USA WASTE SERVICES, INC., a Delaware corporation (the "Borrower"),
having its chief executive office at 5400 LBJ Freeway, Suite 300, Dallas, Texas
75240, and THE FIRST NATIONAL BANK OF BOSTON, a national banking association
having its principal place of business at 100 Federal Street, Boston,
Massachusetts 02110 ("FNBB"), BANK OF AMERICA ILLINOIS, an Illinois banking
corporation having its principal place of business at 231 South LaSalle Street
Chicago, IL 60697 ("BAI"), 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 other financial institutions
party hereto (collectively, the "Banks"), and MGT as the Administrative Agent
(the "Administrative Agent") and FNBB as Documentation Agent (the
"Documentation Agent", and together with the Administrative Agent, the "Bank
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 7.4(a).

        Administrative Agent.  See Preamble.

        Affected Bank.  See Section 5.12.


<PAGE>   11

                                      -2-


        
        Agents.  FNBB, BAI, and J.P. Morgan Securities Inc.

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

        Applicable Facility Rate.  The applicable rate per annum with respect
to the Facility Fee shall be (a) 0.2200% per annum from the Closing Date until
May 31, 1996, and (b) thereafter, as set forth in the Pricing Table.


        Applicable L/C Rate.  The applicable rate per annum on the Maximum
Drawing Amount shall be (a) 0.4050% per annum from the Closing Date until May
31, 1996, and (b) thereafter, as set forth in the Pricing Table.

        Applicable Eurodollar Rate.  The applicable rate per annum of interest
on the Eurodollar Loans shall be (a) the Eurodollar Rate plus 0.4050% per annum
from the Closing Date until May 31, 1996, and (b) thereafter, as set forth in
the Pricing Table.

        Applicable Requirements.  See Section 7.10.

        Assignment and Acceptance.  See Section 18.

        Balance Sheet Date.  December 31, 1995.

        Bank Agents.  See Preamble.

        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.





<PAGE>   12

                                      -3-


        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 (including Western Waste and 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 6.16(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).

        Chambers.  Chambers Development Company, Inc.

        Chambers Merger.  The merger of Chambers and Chambers Acquisition
Corporation pursuant to the terms of the Chambers Merger Agreement.

        Chambers Merger Agreement.  Amended and Restated Agreement and Plan of
Merger dated as of November 28, 1994, as amended June 27, 1995, between the
Borrower, Chambers Acquisition Corporation, and Chambers.

        Closing Date.  The date on which the conditions precedent set forth in
Section 10 hereof are satisfied.

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





<PAGE>   13

                                      -4-



        Commitment.  With respect to each Bank, the amount determined by
multiplying such Bank's Commitment Percentage by the aggregate amount of the
Total Commitment specified in Section 2.1 hereof, as the same may be reduced
from time to time.

        Commitment Percentage.  With respect to each Bank, the percentage set
forth on Schedule 1.

        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 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 (1) interest expense, (2) income
taxes, (3) up to $25,000,000 of merger expenses with respect to the Chambers
Merger taken as a special charge in the quarter ending June 30, 1995 and (4) up
to





<PAGE>   14

                                      -5-


$25,000,000 in merger expenses with respect to the Western Waste Merger taken
as a special charge in the quarter in which the Western Waste Merger is
consummated, to the extent that each was deducted in determining Consolidated
Net Income.

        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 EBIT for such period, determined in accordance with GAAP.

        Consolidated Net Income (or Deficit) or Net Income (or Deficit).  The
consolidated net income (or deficit) of the Borrower and its Subsidiaries on a
consolidated basis, or the net income (or deficit) of the Borrower, 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.

        Consolidated Total Assets.  All assets of the Borrower and its
Subsidiaries determined on a consolidated basis in accordance with GAAP.

        Consolidated Total Capitalization.  The sum of Funded Debt plus 
Consolidated Net Worth.





<PAGE>   15

                                      -6-


    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.

    Default.  See Section 12.

    Defaulting Bank.  See Section 5.12.

    Disposal.  See "Release".

    Distribution.  The declaration or payment of any dividend on or in respect
of any shares of any class of capital stock of any Person, other than dividends
payable solely in shares of common stock of such Person; the purchase,
redemption, or other retirement of any shares of any class of capital stock of
such Person, directly or indirectly through a Subsidiary or otherwise; the
return of equity capital by any Person to its shareholders as such; or any
other distribution on or in respect of any shares of any class of capital stock
of such Person.

    Documentation Agent.  See Preamble.

    Dollars or $.  Dollars in lawful currency of the United States of America.

    Drawdown Date.  The date on which any Loan is made or is to be made.

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

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

    Employee Benefit Plan.  Any employee benefit plan within the meaning of
Section 3(3) of ERISA maintained or contributed to by the Borrower, any of its
Subsidiaries, or any ERISA Affiliate, other than a Multiemployer Plan.

    Environmental Laws.  See Section 6.16(a).





<PAGE>   16

                                      -7-




    EPA.  See Section 6.16(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 with respect to a Guaranteed
Pension Plan within the meaning of Section 4043 of ERISA and the regulations
promulgated thereunder 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 designated
as such 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.





<PAGE>   17

                                      -8-


    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 two 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).

    Event of Default.  See Section 12.

    Facility Fee.  See Section 2.2.

    Funded Debt.  Consolidated Indebtedness of the Borrower and its
Subsidiaries for borrowed money and guarantees of debt for borrowed money
recorded on the Consolidated balance sheet, including the amount of any
Indebtedness of such Persons for Capitalized Leases which corresponds to
principal.

    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 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.

    Hazardous Substances.  See Section 6.16(b).





<PAGE>   18

                                      -9-


    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
purchased 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 recourse 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.

    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, the last 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; 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,
it shall be deemed to end on the next preceding Business Day; and provided
further that no Interest Period shall extend beyond the Maturity Date.

    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





<PAGE>   19

                                      -10-


funding of any captive insurance company.  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.

    Issuing Bank.  The Bank(s) issuing Letters of Credit which shall be FNBB,
MGT, BAI and such other Banks as agreed to by the Borrower and the Bank Agents.

    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.

    Letters of Credit.  Standby or direct pay Letters of Credit issued or to be
issued by the Issuing Bank 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 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).





<PAGE>   20

                                      -11-



    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 to be made by the Banks to the
Borrower pursuant to Section 2 and the Competitive Bid Loans made by Banks
selected pursuant to Section 4.

    Majority Banks. The Banks holding fifty-one percent (51%) of the
outstanding principal amount of the Syndicated Loans on such date; or to the
extent no Syndicated Loans are outstanding, the Banks with fifty-one percent
(51%) of the Total Commitment; provided that in the event that the Total
Commitment has been terminated by the Banks and no Syndicated Loans or Letters
of Credit are outstanding, the Majority Banks shall be the Banks holding
fifty-one percent (51%) of the outstanding principal amount of the Competitive
Bid Loans 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 $8,000,000,
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.  May 7, 2001.

    Maximum Drawing Amount.  The maximum aggregate amount from time to time
that the beneficiaries may draw under outstanding Letters of Credit.

    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 Subsidiary, or
any ERISA Affiliate.

    New Lending Office.  See Section 5.1(d).





<PAGE>   21

                                      -12-


    Non-U.S. Bank.  See Section 5.1(c).

    Notes.  The Competitive Bid Notes and the Syndicated Notes.

    Obligations.  All indebtedness, obligations and liabilities of the Borrower
to any of the Banks and the Bank Agents 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.

    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.

    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.

    Person.  Any individual, corporation, partnership, 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>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------
                                                       Applicable                            Applicable
                       Senior Public                 Facility Rate        Applicable         Eurodollar
 Level                  Debt Rating                                        L/C Rate             Rate
- ----------------------------------------------------------------------------------------------------------------       
   <S>     <C>                                         <C>                 <C>            <C>
   1       At least BBB+  by Standard & Poor's or        0.1250%            0.2500%       Eurodollar Rate
           at least Baa1 by Moody's                    per annum           per annum       plus 0.2500%
                                                                                             per annum
- ----------------------------------------------------------------------------------------------------------------
</TABLE>



<PAGE>   22

                                      -13-



<TABLE>
- ----------------------------------------------------------------------------------------------------------------
   <S>     <C>                                         <C>                 <C>            <C>
   2       At least BBB  by Standard &  Poor's or        0.1500%            0.3000%       Eurodollar Rate
           at least Baa2 by Moody's                    per annum           per annum       plus 0.3000%
                                                                                             per annum
- ----------------------------------------------------------------------------------------------------------------       

   3       At least BBB- by Standard & Poor's and        0.1875%            0.3625%       Eurodollar Rate
           at least Baa3 by Moody's                    per annum           per annum       plus 0.3625%
                                                                                             per annum
- ----------------------------------------------------------------------------------------------------------------       

   4       At least BBB- by Standard  & Poor's or        0.2200%            0.4050%       Eurodollar Rate
           at least Baa3 by Moody's                    per annum           per annum       plus 0.4050%
                                                                                             per annum
- ----------------------------------------------------------------------------------------------------------------       

   5       At least  BB+ by Standard  & Poor's or        0.2750%            0.6000%       Eurodollar Rate
           at least Ba1 by Moody's                     per annum           per annum       plus 0.6000%
                                                                                             per annum
- ----------------------------------------------------------------------------------------------------------------       


   6       If no other level applies                     0.3750%            0.7500%       Eurodollar Rate
                                                       per annum           per annum       plus 0.7500%
                                                                                             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.

        RCRA.  See Section 6.16(a).

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

        Reference Banks.  FNBB, BAI and MGT.

        Reimbursement Obligation.  The Borrower's obligation to reimburse the
Issuing Bank and the Banks on account of any drawing under any Letter of Credit
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





<PAGE>   23

                                      -14-


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 a state
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.

        Replacement Bank.  See Section 5.12.

        Replacement Notice.  See Section 5.12.

        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 (except with respect to Level 3 of the Pricing
Table which by its terms requires equivalent ratings from both agencies) 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 above the lower of
the two ratings.



<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
                    Rank          Standard & Poor's           Moody's
- --------------------------------------------------------------------------------
                   <S>            <C>                         <C>
</TABLE>





<PAGE>   24

                                      -15-


<TABLE>
- --------------------------------------------------------------------------------
                      <S>                  <C>                    <C>
                      1                    A                      A2


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

                      2                    A-                     A3


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

                      3                    BBB+                   Baa1


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

                      4                    BBB                    Baa2


- --------------------------------------------------------------------------------
</TABLE>


<PAGE>   25

                                      -16-


<TABLE>
- --------------------------------------------------------------------------------
                      <S>                 <C>                    <C>
                      5                   BBB-                   Baa3


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


                      6                   BB+                    Ba1


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


                      7                   BB                     Ba2

- --------------------------------------------------------------------------------
</TABLE>


        Standard & Poor's.  Standard & Poor's Ratings Group, a division of
McGraw Hill, 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.

        Syndicated Loan and Letter of Credit Request.  See Section 2.6.

        Syndicated Loans.  Loans advanced pursuant to Section 2.1.

        Syndicated Notes.  See Section 2.4.





<PAGE>   26

                                      -17-


        Total Commitment.  See Section 2.1.

        Western Waste.  Western Waste Industries, Inc., a California
corporation.

        Western Waste Merger.  The merger of Western Waste and Riviera
Acquisition Corporation, a Subsidiary of the Borrower, pursuant to the terms of
the Western Waste Merger Agreement.

        Western Waste Merger Agreement.  The Agreement and Plan of Merger dated
as of December 18, 1995 between Western Waste, the Borrower and Riviera
Acquisition Corporation.

        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.

                 (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 Commonwealth of
        Massachusetts, have the meanings assigned to them therein.





<PAGE>   27

                                      -18-



                 (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 FACILITY.

        Section 2.1  Commitment to Lend Syndicated Loans.  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 Closing Date and the Maturity Date, upon notice by the
Borrower to the Administrative Agent given in accordance with this Section 2,
such Bank's 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 and the Maximum Drawing Amount of outstanding Letters of
Credit shall not exceed a maximum aggregate amount outstanding of (i)
$750,000,000, as such amount may be reduced pursuant to Section 2.3 hereof (the
"Total Commitment") minus (ii) the aggregate amount of Competitive Bid Loans
outstanding at such time.  Each request for a Syndicated 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 with respect to any Letter of Credit shall be a Base Rate Loan
hereunder.

        Section 2.2  Facility Fee.  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.  The Facility Fee
shall be payable quarterly in arrears on the first day of each calendar quarter
for the immediately preceding calendar quarter commencing on July 1, 1996 with
a final payment on the Maturity Date (or on the date of termination in full of
the Total Commitment, if earlier).

        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 Day's prior written notice to the
        Administrative Agent to reduce by $25,000,000 or greater amount or
        terminate entirely the Total Commitment, whereupon the Commitment of
        each Bank 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.  The Administrative Agent will notify the
        Banks promptly after receiving any notice delivered by the Borrower
        pursuant to this Section 2.3.  Notwithstanding the foregoing, at no
        time may the Total Commitment be reduced to an amount less than the sum
        of (i) the Maximum Drawing Amount of all Letters of Credit and (ii) all
        Loans then outstanding.





<PAGE>   28

                                      -19-



                 (b)     On June 30, 1999 and at the end of each fiscal quarter
        ending thereafter, the Total Commitment shall be automatically and
        irrevocably reduced by increments of $25,000,000, whereupon each Bank's
        Commitment shall be reduced pro rata in accordance with such Bank's
        Commitment Percentage, and any payments required by Section 5.2 shall
        be concurrently made on each such date.

                 (c)     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.

        Section 2.4  The Syndicated Notes.  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 Closing
Date and completed with appropriate insertions.  One Syndicated Note shall be
payable to the order of each Bank in an amount equal to such Bank's Commitment,
and shall represent the obligation of the Borrower to pay such Bank such
principal amounts or, if less, the outstanding principal amount of all
Syndicated Loans made by such Bank, plus interest accrued thereon, as set forth
below.  The Borrower irrevocably authorizes each Bank to make or cause to be
made, in connection with a Drawdown Date of any Syndicated Loan or at the time
of receipt of any payment of principal on such Bank's 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 the Syndicated Loan or the receipt of such payment (as
the case may be) and may, prior to any transfer of its Syndicated Note, endorse
on the reverse side thereof the outstanding principal amount of Syndicated
Loans evidenced thereby.  The outstanding amount of the Syndicated Loans set
forth on such Bank's 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 shall not limit or otherwise affect the
obligations of the Borrower hereunder or under the Syndicated Notes to make
payments of principal of or interest on any Syndicated Note when due.

        Section 2.5  Interest on Syndicated Loans.  The outstanding principal
amount of the Syndicated Loans shall bear interest at the rate per annum equal
to the Base Rate on Base Rate Loans or the Applicable Eurodollar Rate on
Eurodollar Loans.  Interest shall be payable (a) monthly in arrears on the
first Business Day of each month, commencing June 1, 1996, on Base Rate Loans,
(b) 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
(c) on the Maturity Date for all Loans.

        Section 2.6  Requests for Syndicated Loans.  The Borrower shall give to
the Administrative Agent written notice in the form of Exhibit C-1 hereto (or
telephonic notice confirmed in writing or a facsimile in the form of Exhibit
C-1 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 notice 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





<PAGE>   29

                                      -20-


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 request shall specify the principal amount of the
Syndicated Loan requested and shall reflect the Maximum Drawing Amount of all
Letters of Credit outstanding and the amount of Loans outstanding (including
Competitive Bid 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.  Each of the representations and warranties made by the Borrower to the
Banks or the Bank Agents 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 on and as of the date of the
submission of a Syndicated Loan and Letter of Credit Request and on and as of
the Drawdown Date of such Syndicated Loan or the date of issuance of such
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).  The Administrative Agent shall promptly notify each Bank of
each Syndicated Loan and Letter of Credit Request received by the
Administrative Agent.

    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 and Letter of Credit Request,
    specify that such requested Syndicated 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 gives
    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 each Bank, 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 each Bank in writing (or by
    telephone confirmed in writing or by facsimile) of such election.





<PAGE>   30

                                      -21-



             (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 maturities of
    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 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 Borrower 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, regardless of whether the Borrower has
    requested a Eurodollar Loan from the other Banks.  Once the affected Bank
    notifies the Borrower that such circumstances no longer exist, the Borrower
    may elect that the principal amount of each such Bank's Loans 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.





<PAGE>   31

                                      -22-


    Section 2.8   Funds for Syndicated Credit Loans.  Not later than 1:00 p.m.
(New York time) on the proposed Drawdown Date of any Syndicated Loan, each of
the Banks will make available to the Administrative Agent, at its Head Office,
in immediately available funds, the amount of such Bank's Commitment Percentage
of the amount of the requested Syndicated Loan. Upon receipt from each Bank of
such amount, and upon receipt of the documents required by Section 10 or
Section 11, as the case may be, and the satisfaction of the other conditions
set forth therein, to the extent applicable, the Administrative Agent will make
available to the Borrower the aggregate amount of such Syndicated Loans made
available to the Administrative Agent 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 any requested Syndicated Loan.

    Section 2.9   Maturity of the Syndicated Loans and Reimbursement
Obligations.  The Syndicated Loans shall be due and payable on the Maturity
Date.  The Borrower promises to pay on the Maturity Date all Syndicated Loans
and all 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 Syndicated 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
Syndicated 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) one (1) Business Day prior to the proposed date of
prepayment or repayment, 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.  The Administrative Agent shall
promptly notify each Bank by written notice (or telephonic notice confirmed in
writing or by facsimile) of such payment.

    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 Syndicated Loan and Letter of Credit Request by the 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) and a
    Letter of Credit Application, the 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 (which may 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, (i) after giving effect to such request, the
    aggregate Maximum Drawing Amount of all letters of credit issued at any
    time under this Section 3.1(a)





<PAGE>   32

                                      -23-


    (the "Letters of Credit") shall not exceed the lesser of (A) $300,000,000,
    or (B) the Total Commitment minus the outstanding amount of the Loans, and
    (ii) no Letter of Credit shall have an expiration date later than the
    earlier of (x) eighteen (18) months after the date of issuance (which may
    incorporate automatic renewals for periods of up to twelve (12) months), or
    (y) five (5) Business Days prior to the Maturity Date.  The letters of
    credit listed in Schedule 3.1(a) and issued by Issuing Banks under the
    previous credit facility of the Borrower shall be Letters of Credit under
    this Agreement.

             (b)     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 thereof, 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 Borrower's 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 Bank to issue, extend and renew each Letter of Credit, the Borrower
hereby agrees to reimburse or pay to the Issuing Bank, with respect to each
Letter of Credit issued, extended or renewed by the Issuing Bank hereunder, as
follows:

             (a)     if any draft presented under any Letter of Credit is
    honored by the Issuing Bank or the Issuing Bank otherwise makes payment
    with respect thereto, the sum of (i) the amount paid by the 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 the
    Issuing Bank in connection with any payment made by the Issuing Bank under,
    or with respect to, such Letter of Credit, provided however, if the
    Borrower does not reimburse the Issuing Bank on the Drawdown Date, such
    amount shall 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 all Reimbursement
    Obligations.





<PAGE>   33

                                      -24-



    Section 3.3   Obligations Absolute.  The Borrower's 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 the 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 the Issuing Bank and the Banks that the 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 the Issuing Bank
or any other Banks), 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 the Issuing Bank or any Bank in good faith under or
in connection with each 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 the 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 Bank.  To the extent not inconsistent
with Section 3.3, the 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 it 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 the 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 or extensions
thereof, the Issuing Bank shall notify the Administrative Agent of the terms of
such Letter of Credit, amendment or extension.  On the day of any drawing under
any Letter of Credit, the Issuing Bank shall notify the Administrative Agent of
such drawing under any Letter of Credit and amounts due from the Borrower
pursuant to Section 3.2(a).

    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 Letters of Credit issued hereunder to the Administrative Agent for
the account of the Banks, to be shared pro-rata by each of 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 July 1, 1996, and on the
Maturity Date.  In addition, an issuing fee (the "Issuance Fee") to be agreed
upon annually between the Borrower and each Issuing Bank shall be payable to
the Issuing Bank for its account.

    Section 4.   COMPETITIVE BID LOANS.





<PAGE>   34

                                      -25-


    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 outstanding principal amount of Competitive Bid Loans outstanding
at any time exceed the lesser of (i) the sum of the Total Commitment minus the
aggregate outstanding principal amount of Syndicated Loans minus the Maximum
Drawing Amount of Letters of Credit outstanding at such time, or (ii)
$200,000,000.

    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 obligation 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 B
    hereto (each, a "Competitive Bid Note"), dated as of the 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 $200,000,000, and
    representing the obligation of the Borrower to pay such Bank such principal
    amounts 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 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





<PAGE>   35

                                      -26-


    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 F 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
             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.





<PAGE>   36

                                      -27-


             (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 G 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 20 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 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 H 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 aggregate principal amount of Competitive Bid
             Loans for which offers were requested and (z) may be subject to an
        

<PAGE>   37

                                      -28-


             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 H
             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





<PAGE>   38

                                      -29-


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 Company 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 I 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





<PAGE>   39

                                      -30-


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 or prepays
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.





<PAGE>   40

                                      -31-



             (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, received at its Head Office in immediately available
    funds by 11:00 a.m. (New York time) on any due date.  If a payment is
    received by the Administrative Agent from the Borrower 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 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 (2) 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 Banks 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 federal 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 with respect to
    Syndicated Loans, or (B) of such payment to which such Bank is entitled in
    the case of payments with respect to Competitive Bid 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
    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)     All payments by the Borrower hereunder and under any of
    the other Loan Documents shall be made without setoff or counterclaim (and
    the Borrower hereby expressly waives any such rights) and free and clear of
    and without deduction for any taxes, levies, imposts, duties, charges,
    fees, deductions, withholdings, compulsory loans, restrictions or
    conditions of any nature now or hereafter imposed or levied by any
    jurisdiction or any political subdivision thereof or taxing or other
    authority therein unless the Borrower is compelled by law to make such
    deduction or withholding.  If any such obligation is imposed upon the
    Borrower with respect to any amount payable by it hereunder or under any of
    the other Loan Documents, the Borrower will pay to the Administrative Agent
    for the account of the Banks (or as the case may be, the Administrative
    Agent) on the date on which such amount is due and payable hereunder or
    under such other Loan Document, such additional amount in Dollars as shall
    be necessary to enable the Banks or the Administrative Agent to receive the
    same net amount which the Banks or the Administrative Agent would have
    received on such due date had no such obligation been imposed upon the
    Borrower.  The Borrower will deliver promptly to the Administrative Agent
    certificates or other valid vouchers for all taxes or other charges
    deducted from or paid with respect to payments made by the Borrower
    hereunder or under such other Loan Document.

             (c)     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
    Documentation 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





<PAGE>   41

                                      -32-


    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 Documentation 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 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.

             (d)  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 paragraph (b) above 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 Credit 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.

             (e)     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 paragraph (b) 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
outstanding 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 (for application first to Syndicated Loans, then to Competitive Bid
Loans, and 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;





<PAGE>   42

                                      -33-


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.  All computations of interest, 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 of 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 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 such Bank or the Administrative Agent of obtaining or maintaining
the applicable 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 such 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.

    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>   43

                                      -34-



             (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, the 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 or the Loans;

                     (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





<PAGE>   44

                                      -35-


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, 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 5.6 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 each Bank and the Administrative Agent and to hold them harmless
from and against any reasonable loss, cost or expense that any 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 on an Interest Payment Date after the Borrower has given
(or is deemed to have given) a Syndicated Loan and Letter of Credit Request, a
notice pursuant to Section 2.7, or a Notice of Acceptance of Competitive Bid
Quote(s), or a notice pursuant to Section 2.10, as the case may be, 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 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, 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 any of the other Loan Documents shall bear
interest compounded monthly and





<PAGE>   45

                                      -36-


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, 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 subsections 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 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 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 Bank Agents and
such Affected Bank (A) request the Affected Bank to cooperate with the Borrower
in obtaining a replacement bank satisfactory to the Bank Agents and the
Borrower (the "Replacement Bank"); (B) request the non-Affected Banks to
acquire and assume all of the Affected Bank's Loans and Commitment, 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 Bank Agents.  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, then such Affected Bank shall, so long as no Event of
Default shall have occurred and be continuing, assign, in accordance with
Section 18, all of its Commitment, Loans, Notes and other rights and
obligations under this Agreement and all other Loan 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 (i) 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 (ii) 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





<PAGE>   46

                                      -37-


Replacement Bank and/or non-Affected Banks, as the case may be, and such
institution 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 Syndicated Loan (or, in the case of Competitive
Bid Loans, the amount of such Bank's accepted offers of Competitive Bid 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 a Competitive Bid Loan, the amount of
such Bank's accepted offer of such Competitive Bid Loan, if any), 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 Syndicated Loan, or the
amount of such Bank's accepted offers of such Competitive Bid Loan, 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 debit the Borrower's accounts to
recover such amount from the Borrower, with interest thereon at the applicable
rate per annum.

    Section 6.    REPRESENTATIONS AND WARRANTIES.  The Borrower represents and
warrants to the Banks that:

    Section 6.1   Corporate Authority.

             (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.





<PAGE>   47

                                      -38-



             (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, (ii) have been duly
    authorized by all necessary corporate proceedings on the part of the
    Borrower, (iii) do not conflict with or result in any breach or
    contravention of any provision of law, statute, rule or regulation to which
    the Borrower or any Subsidiary is subject or any judgment, order, writ,
    injunction, license or permit applicable to the Borrower or any Subsidiary
    so as to materially adversely affect the assets, business or any activity
    of the Borrower and its Subsidiaries as a whole, and (iv) do not conflict
    with any provision of the corporate charter or bylaws of the Borrower or
    any Subsidiary or any agreement or other instrument binding upon the
    Borrower or any of its Subsidiaries.

             (c)     Enforceability.  The execution, delivery and performance
    of the Loan Documents by the Borrower will result in valid and legally
    binding obligations of the Borrower enforceable against it 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 consummation by the
Borrower 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 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 leases, conditional sales agreements, title retention agreements,
liens or other encumbrances except Permitted Liens.

    Section 6.4  Financial Statements; Solvency.

             (a)     There has been furnished to the Banks consolidated balance
    sheets of the Borrower and its Subsidiaries dated the Balance Sheet Date
    and of Western Waste and its Subsidiaries dated June 30, 1995 and
    consolidated statements of operations for the fiscal years then ended,
    certified by the Accountants.  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 or Western Waste
    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, 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





<PAGE>   48

                                      -39-


    no contingent liabilities of the Borrower and its Subsidiaries or Western
    Waste and its Subsidiaries involving material amounts, known to the
    officers of the Borrower, 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
    (both before and after giving effect to the transactions contemplated by
    this Agreement including the Western Waste 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 Balance Sheet Date, in
the case of the Borrower and its Subsidiaries, and since June 30, 1995, in the
case of Western Waste and its Subsidiaries, there have occurred no material
adverse changes in the consolidated financial condition, business or assets of
the Borrower and its Subsidiaries, taken together, or Western Waste and its
Subsidiaries, taken together, as shown on or reflected in the consolidated
balance sheets of the Borrower and its Subsidiaries or Western Waste and its
Subsidiaries as at the Balance Sheet Date or June 30, 1995, as applicable, 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 Western Waste and its Subsidiaries, taken together.  Since the
Balance Sheet Date, in the case of the Borrower and its Subsidiaries, and since
June 30, 1995, in the case of Western Waste and its Subsidiaries, there have
not been any Distributions (including Distributions made by Western Waste)
other than as permitted by Section 8.5 hereof.

    Section 6.6  Franchises, Patents, Copyrights, Etc.  The Borrower and each
of its Subsidiaries possesses all franchises, patents, copyrights, trademarks,
trade names, licenses and permits, and rights in respect of the foregoing,
adequate for the conduct of its 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, 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.





<PAGE>   49

                                      -40-


    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
such 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 by 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 any of the Borrower and its Subsidiaries, considered as a whole.

    Section 6.10  Tax Status.  The Borrower and its Subsidiaries have filed all
federal and state 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 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 foreign jurisdictions
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 Subsidiary 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 company", 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.





<PAGE>   50

                                      -41-


    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 documents 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 interests in, any assets or property of the Borrower or any of its
Subsidiaries or right thereunder.

    Section 6.14  Employee Benefit Plans.

             (a)     In General.  Each Employee Benefit Plan has been
    maintained and operated in compliance in all material respects with the
    provisions of ERISA and, to the extent applicable, the Code, including but
    not limited to the provisions thereunder respecting prohibited
    transactions.

             (b)     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, each of its Subsidiaries, or 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
    such Borrower, Subsidiary, or ERISA Affiliate without material liability to
    any Person.

             (c)     Guaranteed Pension Plans.  Neither the Borrower nor any of
    its Subsidiaries is a sponsor of, or contributor to, a Guaranteed Pension
    Plan.

             (d)     Multiemployer Plans.  None of the Borrower, any of its
    Subsidiaries, 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.  None of the Borrower, any of its Subsidiaries, or any ERISA
    Affiliate has been notified that any Multiemployer Plan is in
    reorganization or is 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  [INTENTIONALLY LEFT BLANK.]





<PAGE>   51

                                      -42-


    Section 6.16  Environmental Compliance.  The Borrower and its Subsidiaries
have taken all necessary steps to investigate the past and present condition
and usage of the Real Properties 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 6.16:

             (a)     None of the Borrower, its Subsidiaries, or 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 state or local statute, regulation,
    ordinance, order or decree relating to health, safety, waste transportation
    or disposal, or the environment (the "Environmental Laws"), which violation
    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 as described on Schedule 6.16, neither the Borrower
    nor any of its Subsidiaries has received notice from any third party
    including, without limitation: any federal, state 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) and 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 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 or 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
    conditions of the Borrower and the Subsidiaries on a consolidated basis;
    and no underground tank or other underground storage receptacle for
    Hazardous Substances is located on such properties; (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 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





<PAGE>   52

                                      -43-


    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 Borrower'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 6.17  [INTENTIONALLY LEFT BLANK.]

    Section 6.18  True Copies of Charter and Other Documents.  The Borrower has
furnished the Documentation Agent copies, in each case true and complete as of
the Closing Date, of (a) all charter and other incorporation documents
(together with any amendments thereto) and (b) by-laws (together with any
amendments thereto).

    Section 6.19  Disclosure.  No representation or warranty made by the
Borrower in this Agreement or in any agreement, instrument, document,
certificate, statement or letter furnished to the Banks or the Bank Agents by
or on behalf of or at the request of the Borrower 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 6.20  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.





<PAGE>   53

                                      -44-


    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 advances made 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 Office.  The Borrower will, and will cause
each of its Subsidiaries to, maintain their chief executive offices at Dallas,
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 Bank Agents.

    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
    90 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
    Coopers & Lybrand 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 45
    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





<PAGE>   54

                                      -45-


    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 D hereto (the "Compliance Certificate") signed by the CFO or the
    CAO or 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 setting forth in reasonable
    detail computations evidencing such compliance with respect to the
    covenants contained in Sections 8.1(e), 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
    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 any 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 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





<PAGE>   55

                                      -46-


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 will 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 such Borrower or 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
Documentation Agent.  In addition, the Borrower will furnish from time to time,
upon the Banks' 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
Documentation 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
foreign jurisdictions 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 such Borrower or Subsidiary shall have set aside
on its books adequate reserves with respect thereto as required by GAAP; and
provided, further, that such Borrower or 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 7.9  Inspection of Properties, Books and Contracts.  The Borrower
will, and will cause its Subsidiaries to, permit the Bank Agents 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





<PAGE>   56

                                      -47-


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 such Borrower's
or 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, the Borrower will immediately
take or cause to be taken all reasonable steps within the power of such
Borrower or 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 and the Bank Agents 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 or the Bank Agents (including
all costs of legal representation incurred by the Banks or the Bank Agents)
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 shall inure to the benefit of the
Banks, the Bank Agents and their affiliates, successors and assigns.

    Section 7.12  Further Assurances.  The Borrower will cooperate with the
Documentation Agent and execute such further instruments and documents as the
Documentation 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 wherein the potential liability is in excess of $5,000,000
together with a copy of each such notice received by the Borrower or any of its
Subsidiaries.





<PAGE>   57

                                      -48-



    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 and 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 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 conditions, 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 conditions,
             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 Laws
             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
             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 $5,000,000; or

                     (iv)     upon the Borrower's or any Subsidiary's obtaining
             knowledge that any expense or loss which individually or in the
             aggregate exceed $5,000,000 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





<PAGE>   58

                                      -49-


Event of Default) under this Agreement or any other note, evidence of
indebtedness, indenture or other obligation evidencing indebtedness in excess
of $5,000,000 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 Western Waste Merger,
including refinancing existing debt and letters of credit of Western Waste 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.

    Section 7.17  Certain Transactions.  Except as disclosed in filings made by
the Borrower under the Securities Exchange Act of 1934, 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 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 the Issuing Bank has any
obligation to issue, extend or renew any Letters of Credit hereunder or the
Banks have any obligation to reimburse the Issuing Bank for advances made 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)     Existing Indebtedness of the Borrower and its Subsidiaries
    listed on Schedule 8.1(b) hereto on the terms and conditions in effect as
    of the date hereof, including extensions, renewals and refinancing of such
    Indebtedness in amounts no greater than and on terms no more restrictive
    than exist on the Closing Date;





<PAGE>   59

                                      -50-



             (c)     Indebtedness incurred by the Borrower or any Subsidiary
    with respect to any suretyship or performance bond incurred in the ordinary
    course of its business (other than landfill closure bonds);

             (d)     Unsecured Indebtedness of the Borrower 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
    incurrence of such Indebtedness; and

             (e)     (i)  Indebtedness of the Borrower's Subsidiaries, (ii)
    secured Indebtedness of the Borrower, and (iii) Indebtedness with respect
    to landfill closure bonds of the Borrower's Subsidiaries; provided that the
    aggregate amount of such Indebtedness in (i), (ii) and (iii) shall not
    exceed 5% of Consolidated Tangible Assets at any time.

    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 Closing Date and listed on Schedule
    8.2(a) hereto;

             (b)     Liens securing Indebtedness permitted by Section 8.1(c)
    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 Section
    8.1(e);

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





<PAGE>   60

                                      -51-



             (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
    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 has
    maintained 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
    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 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
    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.

    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 does not exceed 10% of Consolidated Tangible Assets.

    Section 8.4  Mergers, Consolidations, Sales.  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
transactions to which the Borrower is a party or a Subsidiary shall be the
surviving entity 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 or joint venture interest in, any other
Person except as otherwise provided in Section 8.3 or this Section 8.4, or
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





<PAGE>   61

                                      -52-


purpose as the property being sold or transferred (except (1) transfers of
personal property among Subsidiaries of the Borrower which are wholly owned by
the Borrower and (2) so long as no Default has occurred and is continuing, or
would result therefrom, sales of assets in the ordinary course of business
between the date hereof and the Maturity Date with an aggregate value not
greater than ten percent (10%) 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).  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 interest in, any Person if the following conditions have been met:  (a)
the proposed transaction will not otherwise create a Default or an Event of
Default hereunder; (b) the business to be acquired predominantly involves the
collection, transfer, hauling, disposal or recycling of solid waste (excluding
hazardous waste as that term is defined in RCRA) or thermal soil remediation;
(c) the business to be acquired operates predominantly in North America; and
(d) 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; provided that if the cash consideration to be paid
by the Borrower or its Subsidiary in connection with such acquisition
(including liabilities assumed) exceeds $50,000,000, the Borrower will provide
calculations showing compliance with the covenants set forth in Section 9 on a
pro forma historical combined basis as if the transaction occurred on the first
day of the period of measurement.

    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 Closing 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) $25,000,000 plus (y) on a
cumulative basis, 50% of positive Consolidated Net Income after December 31,
1995.  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





<PAGE>   62

                                      -53-



             (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.

    The Borrower and its Subsidiaries will (i) promptly upon filing the same
with the Department of Labor or Internal Revenue Service, 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, or 4245 of ERISA.

    Section 8.7  Reliance Documents.  The Borrower will not make any material
amendments or modifications of (a) the Amended and Restated Underwriting and
Continuing Indemnity Agreement dated as of June 30, 1995 among the Borrower and
Reliance Insurance Company and certain of its affiliates ("Reliance"), (b) the
Security Agreement dated as of June 30, 1995 among the Borrower, its
Subsidiaries and Reliance and (c) the Equipment and Landfill Utilization
Agreement dated as of June 30, 1995 among the Borrower the Banks and Reliance,
in each case without the prior written consent of the Bank Agents if such
material amendment(s) or such modification(s) would create more restrictive
terms on the Borrower or any of its Subsidiaries.

    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 Letters of Credit hereunder or the Banks have any
obligation to reimburse the Issuing Bank for advances made 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, the ratio of (a) EBIT for the period of four consecutive
fiscal quarters ending on that date to (b) Consolidated Total Interest Expense
for such period shall not be less than 3.00:1.

    Section 9.2  Debt to EBITDA Ratio.  As of the end of any fiscal quarter of
the Borrower, the ratio of (a) Funded Debt to (b) EBITDA for the period of four
consecutive fiscal quarters ending on that date shall not be greater than
3.25:1.





<PAGE>   63

                                      -54-


    Section 9.3   Debt to Total Capitalization.

             (a)     The ratio of (i) Funded Debt to (ii) Consolidated Total
    Capitalization shall not exceed 0.58:1 at any time; and

             (b)     The ratio of (i) Funded Debt to (ii) Consolidated Total
    Capitalization shall not exceed 0.55:1 at the end of any two consecutive
    fiscal quarters of the Borrower.

    Section 10.   CONDITIONS TO EFFECTIVENESS.  The effectiveness of the
Agreement and the obligations of the Banks to make any Loans and of any Issuing
Bank to issue Letters of Credit on the Closing Date and otherwise be bound by
the terms of this Agreement shall be subject to the satisfaction of each of the
following conditions precedent which shall occur no later than June 30, 1996:

    Section 10.1  Corporate Action.  All corporate action necessary for the
valid execution, delivery and performance by the Borrower and its Subsidiaries
of the Loan Documents shall have been duly and effectively taken, and evidence
thereof certified by an authorized officer of the Borrower and satisfactory to
the Banks shall have been provided to the Banks.

    Section 10.2  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 10.3  Certified Copies of Charter Documents.  The Banks shall have
received from the Borrower a copy, certified by a duly authorized officer of
such Person to be true and complete on the Closing 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 10.4  Incumbency Certificate.  The Banks shall have received an
incumbency certificate, dated as of the Closing 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 (b) to make Syndicated Loan and Letter of Credit Requests; (d) 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.





<PAGE>   64

                                      -55-


    Section 10.5   Certificates of Insurance.  The Banks shall have received (i)
a certificate of insurance from an independent insurance broker dated as of the
Closing 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 10.6   Opinions of Counsel and Permit Certificate.  The Banks shall
have received (a) favorable legal opinions from outside counsel to the
Borrower, addressed to the Banks, dated the Closing Date, in form and substance
satisfactory to the Agents, and (b) an environmental permit certificate from
the CFO of the Borrower satisfactory to the Banks concerning principal
operating permits at the Borrower's and its Subsidiaries' and Western Waste's
and its Subsidiaries' principal operating facilities.

    Section 10.7   Western Waste Merger.  The merger between Chambers
Acquisition Corporation and Western Waste shall have occurred on terms and
conditions substantially the same as described in the Western Waste Merger
Agreement.

    Section 10.8   Existing Debt.  The Bank Agents shall have received a payoff
letter with respect to the Borrower's existing revolving credit and term loan
facility and Western Waste's existing revolving credit facility, each such
payoff letter indicating the amount of the loan obligations of the Borrower to
be discharged on the Closing Date, and acknowledging that upon receipt of such
funds the applicable lender will forthwith execute and deliver to the
Documentation Agent for filing all termination statements and take such other
actions as may be necessary to discharge all mortgages, deeds of trust and
security interests (other than Permitted Liens) granted by the Borrower and its
Subsidiaries and Western Waste and its Subsidiaries to such lenders, all in
form and substance satisfactory to the Bank Agents; and the commitments under
the Borrower's existing revolving credit and term loan facility shall have been
terminated.

    Section 10.9   Satisfactory Financial Condition.  No material adverse
change, in the judgment of the Bank Agents, shall have occurred in the
financial condition, results of operations, business, properties or prospects
of the Borrower and its Subsidiaries, taken as a whole, or Western Waste and
its Subsidiaries, taken as a whole, since the most recent financial statements
and projections provided to the Banks.

    Section 10.10  Environmental Reports.  The Agents shall have received
satisfactory environmental reports on the facilities of Western Waste and its
Subsidiaries.

    Section 10.11  Payment of Closing Fees.  The Borrower shall have paid
closing fees to the Administrative Agent for the account of the Banks in
accordance with the commitment letter agreement dated as of March 21, 1996
among Agents and the Borrower.





<PAGE>   65

                                      -56-



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

    Section 11.1  Representations True.  Each of the representations and
warranties of the Borrower 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 such 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 and its
Subsidiaries 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 or the issuance, extension or renewal of any
Letter of Credit, and at the time of the making of any Loan, 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 the issuance, extension,
or renewal of such Letter of Credit, as applicable.  Each request by the
Borrower for a Loan and each request 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 or for the Issuing Bank to issue, extend or renew 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.

    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
such Loan in substance and in form satisfactory to the Banks, including without
limitation a Syndicated Loan Request in the form attached hereto as Exhibit C-1
and a Letter of Credit Request in the form of Exhibit C-2, 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.





<PAGE>   66

                                      -57-


    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 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 the covenants
    contained in Sections 7, 8 or 9 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 Documentation 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 $5,000,000, 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 $5,000,000 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;





<PAGE>   67

                                      -58-


             (g)     if the Borrower 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 or any Material Subsidiary or of any
    substantial part of the assets of the Borrower or commences any case or
    other proceeding relating to the Borrower 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 or any
    Material Subsidiary or the Borrower or any Material Subsidiary indicates
    its approval thereof, consent thereto or acquiescence therein;

             (h)     a decree or order is entered appointing any such trustee,
    custodian, liquidator or receiver or adjudicating the Borrower 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 Material Subsidiary in an involuntary
    case under federal bankruptcy laws 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 $5,000,000 after taking into account any
    undisputed insurance coverage;

             (j)     with respect to any Guaranteed Pension Plan, an ERISA
    Reportable Event 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 or any Subsidiary to
    the PBGC or the Plan in an aggregate amount exceeding $5,000,000 and such
    event in the circumstances occurring reasonably could constitute grounds
    for the termination of such Plan by the PBGC or for the appointment by the
    appropriate United States District Court of a trustee to administer such
    Plan; or a trustee shall have been appointed by the United States District
    Court to administer such Plan; or the PBGC shall have instituted
    proceedings to terminate such Plan;

             (k)     if any of the Loan Documents shall be canceled,
    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 or any of its 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





<PAGE>   68

                                      -59-



             (l)     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
    (i) 25% or more of the outstanding shares of common voting stock of the
    Borrower or (ii) with respect to the Rangos family, 20% or more of such
    stock; 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
Bank Agents 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 Bank Agents 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 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 Bank shall be relieved of all obligations to make Loans to or to issue,
extend or renew Letters of Credit for the account of the Borrower; 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 Bank shall
be relieved of all further obligations to make Loans to or to issue, extend or
renew Letters of Credit for the account of the Borrower hereunder.  No
termination of any portion of the Commitment Percentage hereunder shall relieve
the Borrower of any of its existing Obligations to the Banks or the Bank Agents
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 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.  No remedy herein conferred upon any Bank or the Bank
Agents 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.





<PAGE>   69

                                      -60-



    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 and any securities or other property of
the Borrower 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 Bank Agents.  Any
amounts set off pursuant to this Section 13 shall be distributed ratably 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 any Borrower 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
Documentation 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 this Agreement,
the other Loan Documents, or any amendment, modification, approval, consent or
waiver hereof or thereof.  The Borrower further promises to reimburse the Bank
Agents 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 thereunder, 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.  The Borrower will pay any taxes (including
any interest and penalties in respect thereof) other than any Bank's or Bank
Agents' taxes based upon or measured by the income or profits, payable on or
with respect to the transactions contemplated by this Agreement (the Borrower
hereby agreeing to indemnify each Bank and Bank Agent with respect thereto).

    Section 15.   THE BANK AGENTS.

    Section 15.1  Appointment, Powers and Immunities.  Each Bank hereby
irrevocably appoints and authorizes (a) FNBB to act as Documentation Agent, and
(b) MGT to act as Administrative Agent hereunder and under the other Loan
Documents, provided, however, the Administrative Agent and Documentation Agent
are hereby authorized to serve only as administrative and documentation agents,
respectively, 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 Bank Agents hereby acknowledge that they do 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 Bank Agents
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
Bank, in its capacity as issuer of Letters of Credit hereunder, shall be
identical to the duties, rights, privileges and immunities of the Bank Agents
as provided in this Section 15.  The Bank Agents shall not have any duties or
responsibilities or any fiduciary relationship with any Bank except those
expressly set forth in this Agreement.  None of the Bank Agents nor any of
their 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





<PAGE>   70

                                      -61-


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 Bank Agents 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.  Neither the Bank Agents
nor any of their directors, officers, employees or agents shall 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.  Any Bank 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 Bank Agents.  Each Bank 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 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 Bank Agents 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 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 and its Subsidiaries hereunder or under any other Loan Document, the
Banks agree to indemnify the Bank Agents, 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 Bank Agents 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 Bank Agents (or any agent thereof), 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 12.3, no Bank Agent shall be obliged to make available to any
Person any sum which the Bank Agent is expecting to receive for the account of
that Person until the Bank Agent has determined that it has received that sum.
A Bank Agent may, however, disburse funds prior to determining that the sums
which the Bank Agent expects to receive have been finally and unconditionally
paid to the Bank Agent, if the Bank Agent wishes to do so.  If and to the
extent that a Bank Agent does disburse funds and it later becomes apparent that
the Bank Agent did not then receive a payment in an amount equal to the sum
paid out, then any Person to whom the Bank Agent made the funds available
shall, on demand from the Bank Agent, refund to the Bank Agent the sum paid to
that Person.  If, in the opinion of a Bank Agent, the distribution of any
amount received by it in such capacity hereunder or under the 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 a Bank Agent is to be repaid, each
Person to whom any such





<PAGE>   71

                                      -62-


distribution shall have been made shall either repay to the Bank 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 15.5  Documents.  The Bank Agents will forward to each Bank,
promptly after receipt thereof, a copy of each notice or other document
furnished to the Bank Agents 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 Bank Agents and Other Banks.  Each Bank
represents that it has, independently and without reliance on the Bank 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 decision to enter into this Agreement and the other Loan
Documents and agrees that it will, independently and without reliance upon the
Bank 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 Bank Agents
shall not be required to keep informed as to the performance or observance by
the Borrower 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 Bank Agents
hereunder, the Bank Agents 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 Bank Agents or any of their affiliates.  Each
Bank shall have access to all documents relating to the Bank Agents'
performance of their duties hereunder at such Bank's request. Unless any Bank
shall promptly object to any action taken by the Bank Agents 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 Bank Agents), such
Bank shall be presumed to have approved the same.

    Section 15.7  Resignation of Bank Agents.  A Bank 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 Bank
Agent) shall have the right to appoint a successor Bank Agent from among the
Banks.  If no successor to such Bank Agent shall have been so appointed by the
Banks and shall have accepted such appointment within 30 days after the
retiring Bank Agent's giving of notice of resignation, then the retiring Bank
Agent may, on behalf of the Banks, appoint a successor Bank 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 Bank Agent hereunder by a successor Bank Agent, such successor
Bank Agent shall thereupon succeed to and become vested with all the rights,
powers, privileges and duties of the retiring Bank Agent, and the retiring Bank
Agent shall be discharged from its duties and obligations hereunder.  After any
retiring Bank 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 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





<PAGE>   72

                                      -63-


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 the 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 any
Bank Agent shall be effective without the written consent of such Bank Agent.
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 the Banks 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; or (f) change the Commitment Percentage of any Bank, except as permitted
under Section 18 hereof.

    Section 16.   INDEMNIFICATION.  The Borrower agrees to indemnify and hold
harmless the Banks and the Bank Agents and their affiliates, as well as the
Banks' and the Bank Agents' 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 statutory 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 Bank Agents 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 by third
parties, the Borrower shall be entitled to participate in such proceeding or
litigation with counsel of its choice at its expense, provided that such
counsel shall be reasonably satisfactory to the Banks.  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, 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.   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 pursuant hereto shall be deemed to have been relied upon
by the Banks and the Bank Agents, notwithstanding any





<PAGE>   73

                                      -64-


investigation heretofore or hereafter made by it, and shall survive the making
by the Banks of the Loans and the issuance, extension or renewal of any Letters
of Credit by the 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 the 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 18.   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 (which assignment shall be of an equal percentage
of the Commitment, the Loans and outstanding Letters of Credit unless otherwise
agreed to by the Agents) to additional banks or other financial institutions
with the prior written approval of the Administrative Agent, the Issuing Banks
and 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 affilate or such Bank all or any part of its rights and obligations under
the Loan Documents by notice to the Agents and the Borrower.  It is further
agreed that each bank or other financial institution which executes and
delivers to the Documentation Agent and the Borrower hereunder an Assignment
and Acceptance substantially in the form of Exhibit E hereto together with an
assignment fee in the amount of $2,500 payable by the assigning Bank to the
Documentation 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.  Upon the execution and delivery of such
Assignment and Acceptance, (a) the Borrower shall issue to the bank or other
financial institution a Syndicated Note 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 Documentation Agent and otherwise
completed in substantially the form of Exhibit A 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 B (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 Documentation 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 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 or financial institutions voting rights
with respect to this Agreement to the matters set forth in Section 15.8 which
require the vote of all Banks.





<PAGE>   74

                                      -65-


    Notwithstanding the foregoing, no assignment or participation shall operate
to increase the 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 $15,000,000, as such amount may be reduced upon
reductions in the Total Commitment pursuant to Section 2.3 hereof.

    Anything contained in this Section 18 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.

    Section 19.   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
hereunder without the prior written consent of each of the Banks.

    Section 20.   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, at 5400 LBJ Freeway, Suite 300,
    Dallas, Texas  75240, Attention:  Earl E.  DeFrates, facsimile number (214)
    383-7911; or

             (b)     if to FNBB or the Documentation Agent, at The First
    National Bank of Boston, 100 Federal Street, Boston, MA 02110, Attention:
    Charles C. Woodard, Managing Director, facsimile number: (617) 434-2160; or

             (c)     if to BAI, at Bank of America Illinois, 231 South LaSalle
    Street, Chicago, Illinois 60697, Attention:  Robert P. Rospierski, Vice
    President, facsimile number (312) 828-1974;

             (d)     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) 648-5336;

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





<PAGE>   75

                                      -66-



    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 21.   MISCELLANEOUS.  The rights and remedies herein expressed are
cumulative and not exclusive of any other rights which the Banks 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 22.   CONSENTS, ETC.  Neither this Agreement nor any term hereof
may be changed, waived, discharged or terminated, except as provided in this
Section 22, 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 Banks.  To the
extent permitted by law, no course of dealing or delay or omission on the part
of any of the Banks or the Bank Agents 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 23.   WAIVER OF JURY TRIAL.  TO THE EXTENT PERMITTED BY APPLICABLE
LAW, THE BORROWER HEREBY WAIVES ITS 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 HEREBY WAIVES ANY RIGHT IT 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 (A)





<PAGE>   76

                                      -67-


CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY BANK OR BANK AGENT
HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH BANK OR AGENT WOULD NOT, IN
THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVERS AND (B)
ACKNOWLEDGES THAT THE BANK AGENTS AND THE BANKS HAVE BEEN INDUCED TO ENTER INTO
THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS BECAUSE OF, AMONG OTHER THINGS, THE
BORROWER'S WAIVERS AND CERTIFICATIONS CONTAINED HEREIN.

    Section 24.  GOVERNING LAW.  THIS AGREEMENT AND EACH OF THE OTHER LOAN
DOCUMENTS ARE CONTRACTS UNDER THE LAWS OF THE COMMONWEALTH OF MASSACHUSETTS AND
SHALL FOR ALL PURPOSES BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS
OF SAID COMMONWEALTH (EXCLUDING THE LAWS APPLICABLE TO CONFLICTS OR CHOICE OF
LAW).  THE BORROWER CONSENTS TO THE JURISDICTION OF ANY OF THE FEDERAL OR STATE
COURTS LOCATED IN THE COMMONWEALTH OF MASSACHUSETTS IN CONNECTION WITH ANY SUIT
TO ENFORCE THE RIGHTS OF THE BANKS OR THE BANK AGENTS UNDER THIS AGREEMENT OR
ANY OF THE OTHER LOAN DOCUMENTS.

    Section 25.  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 26.  FINAL AGREEMENT.  THIS WRITTEN 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>   77

                                      -68-


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

                          THE BORROWER:                               
                                                                      
                          USA WASTE SERVICES, INC.                    

                                                                      
                          By:  /s/ Earl E. Defrates
                             -------------------------------------------
                             Earl E. DeFrates                     
                             Executive Vice President and CFO     
                                                                      
                                                                      
                          THE BANKS AND AGENTS:                       
                                                                      
                          THE FIRST NATIONAL BANK OF BOSTON,          
                          Individually and as Documentation Agent     
                                                                      
                                                                      
                          By:  /s/
                             -------------------------------------------
                             Managing Director                    
                                                                      
                                                                      
                          BANK OF AMERICA ILLINOIS                    
                                                                      
                                                                      
                          By:  /s/
                             -------------------------------------------
                          Title:  Vice President
                                ----------------------------------------
                                                                      
                                                                      
                          MORGAN GUARANTY TRUST COMPANY OF NEW YORK,  
                          Individually and as Administrative Agent    
                                                                      

                          By:  /s/ Laura E. Reim
                             -------------------------------------------
                          Title:  Vice President
                                ----------------------------------------
                                                                      



<PAGE>   78

                                      -69-


                                                                      
                          ABN AMRO BANK, HOUSTON AGENCY, BY ABN    
                          AMRO, NORTH AMERICA INC., as its agent   
                                                                      
                          By: /s/
                             -------------------------------------------
                          Title: Group Vice President and Director
                                ----------------------------------------
                                                                      
                          By: /s/
                             -------------------------------------------
                          Title: Vice President and Director
                                ----------------------------------------
                                                                      
                                                                      
                          BANK AUSTRIA AKTIENGESELLSCHAFT          
                                                                      
                                                                      
                          By: /s/
                             -------------------------------------------
                          Title:
                                ----------------------------------------
                                                                      
                          By: /s/ Kevin B. McGinn
                             -------------------------------------------
                          Title: Sr. Vice President
                                ----------------------------------------

                                                                      
                          THE BANK OF NEW YORK                     
                                                                      
                                                                      
                          By: /s/ H. Stephen Griffith
                             -------------------------------------------
                          Title: Senior Vice President
                                ----------------------------------------
<PAGE>   79

                                      -70-


                          THE BANK OF NOVA SCOTIA                        
                                                                            
                                                                            
                          By: /s/
                             -------------------------------------------
                          Title: Senior Manager Loan Operations
                                ----------------------------------------


                          BANQUE PARIBAS, HOUSTON AGENCY                 
                                                                            
                                                                            
                          By: /s/ Scott Clingan
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------
                          By: /s/ Larry Robinson
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------


                          BHF-BANK AKTIENGESELLSCHAFT                    
                                                                            
                                                                            
                          By: /s/
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------


                          CIBC INC.                                      
                                                                            
                                                                            
                          By: /s/ Gary C. Gaskill
                             -------------------------------------------
                          Title: Authorized Signatory
                                ----------------------------------------
                                                                            

                          COOPERATIEVE CENTRALE RAIFFEISEN               
                          BOERENLEENBANK, B.A., "RABOBANK NEDERLAND",    
                          NEW YORK BRANCH                                
                                                                            
                                                                            
                          By: /s/ Juhannes F. Breukhuven
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------

                          By: /s/ W. Jeffrey Vollack
                             -------------------------------------------
                          Title: Vice President, Manager
                                ----------------------------------------


                          CREDIT LYONNAIS NEW YORK BRANCH                
                                                                            
                                                                            
                          By: /s/ Robert Ivosevich
                             -------------------------------------------
                          Title: Senior Vice President
                                ----------------------------------------




<PAGE>   80

                                      -71-



                          DEUTSCHE BANK AG, NEW YORK AND/OR        
                          CAYMAN ISLANDS BRANCHES                  
                                                                            
                                                                            
                          By: /s/ Jean M. Hannigan
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------
                                                                            
                          By: /s/ John Augsburger
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------


                          FIRST INTERSTATE BANK OF TEXAS, N.A.     
                                                                            
                                                                            
                          By: /s/
                             -------------------------------------------
                          Title: Senior Vice President
                                ----------------------------------------

                                                                            
                          THE FUJI BANK, LIMITED, HOUSTON AGENCY   
                                                                            
                                                                            
                          By: /s/ David Kelley
                             -------------------------------------------
                          Title: Vice President and Senior Manager
                                ----------------------------------------

                                                                            
                          HIBERNIA NATIONAL BANK                   
                                                                            
                                                                            
                          By: /s/
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------

                                                                            
                                                                            
                                                                            


<PAGE>   81

                                      -72-



                          THE LONG-TERM CREDIT BANK OF JAPAN,     
                          LIMITED, NEW YORK BRANCH                
                                                                              
                                                                              
                          By: /s/
                             -------------------------------------------
                          Title: Joint General Manager
                                ----------------------------------------
                                                                              
                          FLEET BANK, N.A.                        
                          (f/k/a NATWEST BANK N.A.)               
                                                                              
                                                                              
                          By: /s/ Dilcia Pena Hill
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------

                                                                              
                          THE SANWA BANK LIMITED, DALLAS AGENCY   
                                                                              
                                                                              
                          By: /s/
                             -------------------------------------------
                          Title:
                                ----------------------------------------

                                                                              
                          THE SUMITOMO BANK, LIMITED - HOUSTON    
                          AGENCY                                  
                                                                              
                                                                              
                          By: /s/ Harumitsu Seki
                             -------------------------------------------
                          Title: General Manager
                                ----------------------------------------

                                                                              
                          SUNTRUST BANK, ATLANTA                  
                                                                              
                                                                              
                          By: /s/ Jennifer McClure
                             -------------------------------------------
                          Title: Corporate Banking Officer
                                ----------------------------------------

                          By: /s/
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------
                                                                  
                                                                              



<PAGE>   82

                                      -73-



                          UNION BANK                                  
                                                                               
                                                                               
                          By: /s/ Julie Bloomfield
                             -------------------------------------------
                          Title: Vice President
                                ----------------------------------------
                                                                      
                                                                      
                          WESTDEUTSCHE LANDESBANK GIROZENTRALE,       
                          NEW YORK AND CAYMAN ISLAND BRANCHES         
                                                                      
                                                                      
                          By: /s/ Richard R. Newman
                             -------------------------------------------
                          Title: Vice President
                                ---------------------------------------- 

                          By: /s/ M. P. M. Ransley
                             -------------------------------------------
                          Title: Associate
                                ---------------------------------------- 
                                                                
                                                                               
                                                                               



<PAGE>   1

                                                                    EXHIBIT 99.1
                             FOR IMMEDIATE RELEASE

                                                             Contact: Lew Nevins

                                                                  (214) 383-7940

                                                                       UW #96-06

              USA WASTE ANNOUNCES CLOSING OF WESTERN WASTE MERGER

                   AND NEW $750 MILLION BANK CREDIT FACILITY


         DALLAS, TX (May 7, 1996) -- USA Waste Services, Inc. (NYSE:UW)
announced that its stockholders approved the merger with Western Waste
Industries at their annual meeting today.  Earlier in the day, stockholders of
Western Waste approved the merger transaction with USA Waste Services.

         John E. Drury, USA Waste's Chief Executive Officer, said, "We are
delighted to have completed this merger, one which makes USA Waste the third
largest solid waste company in North America.  Western Waste, with its
established market presence and large asset base, gives us additional access to
several new markets and a larger presence in some existing ones.  Western's
major market share in Southern California, together with USA Waste's recent
entry into New York City, provide the Company with a strong presence in the two
largest waste markets in the United States."

         Mr. Drury noted that the process of integrating Western Waste's
operations with USA Waste's will move forward rapidly with substantial savings
planned over the coming months.

         Kosti Shirvanian, Western Waste's Chairman and CEO, said, "I am
excited about this merger and the great partnership we are forming.  I believe
Western Waste's shareholders, employees, customers and others will be well
served by this merger.  Western Waste was started over 40 years ago and, as a
wholly owned subsidiary of USA Waste, our Company's spirit will continue to
live and prosper with this combination."

         In connection with the merger, USA Waste also announced that it has
arranged a new $750 million five year revolving credit facility with a
consortium of banks led by The First National Bank of Boston, Bank of America
Illinois and Morgan Guaranty Trust Company.  The new facility will be used to
refinance existing bank loans and letters of credit as well as fund additional
acquisitions





<PAGE>   2
and working capital.  This facility offers the Company improved terms and
financing flexibility while providing reduced borrowing costs that reflect a
strengthened credit profile.

         At the annual meeting, USA Waste stockholders also approved the other
proposals presented to them.  
         
         USA Waste Services is an integrated solid waste management company
serving municipal, commercial, industrial and residential customers in 24
states.  The Company has annualized post-merger revenues of over $800 million
and assets of over $1 billion.
         






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