TRC COMPANIES INC /DE/
10-Q, 1997-11-14
HAZARDOUS WASTE MANAGEMENT
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                     SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                                   FORM 10-Q
 
/X/ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities
    Exchange Act of 1934
 
                 For the quarterly period ended September 30, 1997
 
                                       OR
 
/ / Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange
    Act of 1934
 
               For the transition period from __________ to __________
 
                          COMMISSION FILE NUMBER 1-9947
 
                                TRC COMPANIES, INC.
              (Exact name of registrant as specified in its charter)
 
           Delaware                                   06-0853807
- --------------------------------------    -----------------------------------
(State or other jurisdiction of         (I.R.S. Employer Identification No.)
 incorporation or organization)  

        5 Waterside Crossing
         Windsor, Connecticut                            06095
- ----------------------------------------  -----------------------------------
(Address of principal executive offices)               (Zip Code)
 
    Registrant's telephone number, including area code: (860) 289-8631

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

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months, and (2) has been subject to such filing
requirements for the past 90 days. / / YES /x/ NO
 
    On September 30, 1997 there were 6,688,102 shares of the registrant's common
stock, $.10 par value, outstanding.
 

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

<PAGE>

                              TRC COMPANIES, INC.
 
                 CONTENTS OF QUARTERLY REPORT ON FORM 10-Q
 
                      QUARTER ENDED SEPTEMBER 30, 1997
 
PART I--FINANCIAL INFORMATION
 
Item 1.  Consolidated Financial Statements

         Statements of Operations for the three months ended
             September 30, 1997 and 1996..................................  3

         Balance Sheets at September 30, 1997 and June 30, 1997...........  4

         Statements of Cash Flows for the three months ended
             September 30, 1997 and 1996..................................  5

         Notes to Financial Statements....................................  6

Item 2.  Management's Discussion and Analysis of Results of Operations
             and Financial Condition......................................  7
 
PART II--OTHER INFORMATION
 
Item 1.  Legal Proceedings................................................ 10

Item 6.  Exhibits and Reports on Form 8-K................................. 11

Signature................................................................. 11




                                     -2-

<PAGE>

                       PART I: FINANCIAL INFORMATION
 
                           TRC COMPANIES, INC.
 
                 CONSOLIDATED STATEMENTS OF OPERATIONS
                              (Unaudited)
 
<TABLE>
<CAPTION>
                                                                                          THREE MONTHS ENDED
                                                                                            SEPTEMBER 30,
<S>                                                                                  <C>            <C>
                                                                                         1997           1996
                                                                                     -------------  -------------
GROSS REVENUE                                                                        $  17,560,310  $  18,029,165
  Less subcontractor costs and direct charges                                            4,570,143      4,643,202
                                                                                     -------------  -------------
NET SERVICE REVENUE                                                                     12,990,167     13,385,963
                                                                                     -------------  -------------
OPERATING COSTS AND EXPENSES:
  Direct labor and fringe benefit costs                                                  5,680,971      5,776,914
  Indirect costs and expenses                                                            5,543,783      5,471,442
  General and administrative expenses                                                      679,378        917,377
  Depreciation and amortization                                                            668,521        684,932
                                                                                     -------------  -------------
                                                                                        12,572,653     12,850,665
                                                                                     -------------  -------------
INCOME FROM OPERATIONS                                                                     417,514        535,298
Interest expense                                                                           220,251        196,755
                                                                                     -------------  -------------
INCOME BEFORE TAXES                                                                        197,263        338,543
Federal and state income tax provision                                                      75,000        129,000
                                                                                     -------------  -------------
NET INCOME                                                                           $     122,263  $     209,543
                                                                                     -------------  -------------
                                                                                     -------------  -------------
EARNINGS PER SHARE                                                                   $         .02  $         .03
                                                                                     -------------  -------------
                                                                                     -------------  -------------
WEIGHTED AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES OUTSTANDING               6,688,102      6,894,971
                                                                                     -------------  -------------
</TABLE>
 
    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.
 

                                      -3-

<PAGE>

                              TRC COMPANIES, INC.
 
                          CONSOLIDATED BALANCE SHEETS
                                  (Unaudited)
 
<TABLE>
<CAPTION>
                                                         SEPTEMBER 30,    JUNE 30,
                                                             1997           1997
                                                         -------------  -------------
<S>                                                      <C>            <C>
                                   ASSETS
CURRENT ASSETS:
  Cash and cash equivalents                              $     372,286  $   1,020,065
  Accounts receivable, less allowance for doubtful
    accounts                                                26,593,295     26,539,226
  Inventories                                                1,059,491      1,092,391
  Income taxes refundable                                      580,713        598,677
  Deferred income tax benefits                                 930,000        884,000
  Prepaid expenses and other current assets                  1,857,387      1,324,114
                                                         -------------  -------------
                                                            31,393,172    31,458,473
                                                         -------------  -------------
PROPERTY AND EQUIPMENT, AT COST                             20,464,529     20,295,696
  Less accumulated depreciation and amortization            16,021,998     15,596,670
                                                         -------------  -------------
                                                             4,442,531      4,699,026
                                                         -------------  -------------
COSTS IN EXCESS OF NET ASSETS OF ACQUIRED BUSINESSES,
  NET OF ACCUMULATED AMORTIZATION                           25,080,519     25,310,445
                                                         -------------  -------------
OTHER ASSETS                                                   837,702        822,315
                                                         -------------  -------------
                                                         $  61,753,924  $  62,290,259
                                                         -------------  -------------
                                                         -------------  -------------
                            LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
  Current portion of debt                                $   7,650,000  $   4,000,000
  Accounts payable                                           2,625,678      2,740,240
  Accrued compenation and benefits                           2,451,995      2,508,369
  Other accrued liabilities                                    818,330      1,529,992
                                                         -------------  -------------
                                                            13,546,003     10,778,601
                                                         -------------  -------------
NONCURRENT LIABILITIES:
  Long-term debt                                             3,500,000      7,000,000
  Deferred income taxes                                      1,742,000      1,668,000
                                                         -------------  -------------
                                                             5,242,000      8,668,000
                                                         -------------  -------------
SHAREHOLDERS' EQUITY:
  Capital stock:
     Preferred, $.10 par value; 500,000 shares
       authorized, none issued                                     --             --
     Common, $.10 par value; 30,000,000 shares
       authorized, 7,316,755 shares issued at
       September 30, 1997 and June 30, 1997                    731,675        731,675
  Additional paid-in capital                                38,093,644     38,093,644
  Retained earnings                                          7,037,605      6,915,342
                                                         -------------  -------------
                                                            45,862,924     45,740,661
  Less treasury stock, at cost                               2,897,003      2,897,003
                                                         -------------  -------------
                                                            42,965,921     42,843,658
                                                         -------------  -------------
                                                         $  61,753,924  $  62,290,259
                                                         -------------  -------------
                                                         -------------  -------------
</TABLE>
 
    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.
 

                                     -4-

<PAGE>

                              TRC COMPANIES, INC.
 
                    CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (Unaudited)
 
<TABLE>
<CAPTION>
                                                                               THREE MONTHS ENDED
                                                                                  SEPTEMBER 30,
<S>                                                                          <C>         <C>
                                                                                1997        1996
                                                                             ----------  -----------
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income                                                                 $  122,263  $   209,543
  Adjustments to reconcile net income to net cash provided by operating
  activities:
    Depreciation and amortization                                               668,521      684,932
    Change in deferred taxes and other non-cash items                            28,000       18,552
    Changes in assets and liabilities:
      Accounts receivable                                                       (54,069)    (800,610)
      Inventories                                                                32,900       52,080
      Prepaid expenses and other current assets                                (533,273)    (409,473)
      Accounts payable                                                         (114,562)   1,183,852
      Accrued compensation and benefits                                         (56,374)    (226,276)
      Income taxes                                                               17,964       56,680
      Other accrued liabilities                                                (711,662)    (235,035)
                                                                             ----------  -----------
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES                            (600,292)     534,245
                                                                             ----------  -----------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Additions to property and equipment, net                                     (168,833)     (45,067)
  Decrease (increase) in other assets, net                                      (28,654)    (191,304)
                                                                             ----------  -----------
NET CASH USED IN INVESTING ACTIVITIES                                          (197,487)    (236,371)
                                                                             ----------  -----------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Net borrowings (repayments) on debt                                           150,000      800,000
  Purchase of treasury stock                                                     --       (1,266,630)
                                                                             ----------  -----------
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES                             150,000     (466,630)
                                                                             ----------  -----------
DECREASE IN CASH AND CASH EQUIVALENTS                                          (647,779)    (168,756)
Cash and cash equivalents, beginning of period                                1,020,065    1,321,524
                                                                             ----------  -----------
CASH AND CASH EQUIVALENTS, END OF PERIOD                                     $  372,286  $ 1,152,768
                                                                             ----------  -----------
                                                                             ----------  -----------
</TABLE>
 
    THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE FINANCIAL STATEMENTS.

                                     -5-

<PAGE>

                              TRC COMPANIES, INC.
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
                               SEPTEMBER 30, 1997
 
1. The consolidated balance sheet at September 30, 1997 and the 
   consolidated statements of operations and cash flows for the three months 
   ended September 30, 1997 and 1996 are unaudited, but in the opinion of 
   the Company, include all adjustments, consisting only of normal recurring 
   accruals, necessary for a fair presentation of the results for the 
   interim periods. The results of operations for the three months ended 
   September 30, 1997 are not necessarily indicative of the results to be 
   expected for the full fiscal year. Certain footnote disclosures usually 
   included in financial statements prepared in accordance with generally 
   accepted accounting principles have been omitted. It is suggested that 
   these financial statements be read in conjunction with the financial 
   statements and notes thereto included in the Company's Annual Report to 
   Shareholders for the fiscal year ended June 30, 1997.
 
2. Earnings per common share are based upon the weighted average number 
   of common shares outstanding and, when dilutive, common stock equivalents 
   using the treasury stock method.
 
3. The components of inventories were as follows:
 
<TABLE>
<CAPTION>
                                                                                       SEPTEMBER 30,    JUNE 30,
                                                                                           1997           1997
                                                                                       -------------  ------------
<S>                                                                                    <C>            <C>
   Materials and supplies                                                              $   444,107   $    637,147
   Work-in-progress                                                                        179,653         33,552
   Finished goods                                                                          435,731        421,692
                                                                                       -------------  ------------
                                                                                        $ 1,059,491   $  1,092,391
                                                                                       -------------  ------------
                                                                                       -------------  ------------
</TABLE>
 
                                     -6-


<PAGE>

                            TRC COMPANIES, INC.
 
                   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                RESULTS OF OPERATIONS AND FINANCIAL CONDITION
 
                Three Months Ended September 30, 1997 and 1996
 
OVERVIEW
 
    TRC Companies, Inc. provides a broad range of environmental management,
engineering and remediation services and specialized pollution control
measurement instrumentation to industry and government.
 
RESULTS OF OPERATIONS
 
    The Company, in the course of providing its services, routinely subcontracts
drilling, laboratory analyses and other specialized services. These costs are
passed directly through to clients and, in accordance with industry practice,
are included in gross revenue. Because subcontractor costs and direct charges
can change significantly from project to project, the change in gross revenue is
not necessarily a true indication of business trends. Accordingly, the Company
considers net service revenue, which is gross revenue less subcontractor costs
and direct charges, as its primary measure of revenue growth.
 
    The following table presents the percentage relationships of certain items
in the consolidated statements of operations to net service revenue:
 
<TABLE>
<CAPTION>
                                                                                             THREE MONTHS ENDED
                                                                                               SEPTEMBER 30,
                                                                                                     
                                                                                              1997       1996
                                                                                           ---------  ---------
<S>                                                                                        <C>        <C>  
NET SERVICE REVENUE                                                                          100.0%     100.0%
                                                                                           ---------  ---------
OPERATING COSTS AND EXPENSES:
  Direct labor and fringe benefit costs                                                       43.7       43.1
  Indirect costs and expenses                                                                 42.7       40.9
  General and administrative expenses                                                          5.2        6.9
  Depreciation and amortization                                                                5.2        5.1
                                                                                           ---------  ---------
INCOME FROM OPERATIONS                                                                         3.2        4.0
Interest expense                                                                               1.7        1.5
                                                                                           ---------  ---------
INCOME BEFORE TAXES                                                                            1.5        2.5
Federal and state income tax provision                                                         0.5        0.9
                                                                                           ---------  ---------
NET INCOME                                                                                     1.0%       1.6%
                                                                                           ---------  ---------
                                                                                           ---------  ---------
</TABLE>
 
                                       -7-
<PAGE>
 
Net service revenue decreased by 3.0% during the three months ended
September 30, 1997 to $13.0 million, from $13.4 million in the same period last
year. Compared to the previous quarterly period, net service revenue increased
by 1.4% as the Company had its second straight quarter of stabilized revenues
after two years of continuous net service revenue declines. The Company believes
that the larger revenue declines experienced during the past two years are not
expected to recur in the near future as the market for the Company's services
improves.
 
Direct labor and fringe benefit costs decreased by 1.7% during the three
months ended September 30, 1997, as compared to the same period last year,
primarily due to the decrease in net service revenue. Indirect costs and
expenses increased by 1.3% during the three months ended September 30, 1997, as
compared to the same period last year. However, as compared to the previous
quarterly period, these costs decreased by 1.6% primarily due to recent
reductions in overhead costs and to a slight increase in staff utilization.
 
General and administrative expenses decreased by 25.9% during the three
months ended September 30, 1997, as compared to the same period last year.
Compared to the previous quarterly period, these costs decreased by 12.9%. These
decreases are the direct result of the cost reduction efforts taken in the
fourth quarter of fiscal 1997.
 
Depreciation and amortization expense decreased by 2.4% during the three
months ended September 30, 1997, as compared to the same period last year. This
decrease was due to the comparative reduction in capital expenditures during
fiscal 1997 and 1996, combined with the effect of other equipment which became
fully depreciated.
 
The Company reported income from operations of $417,514 for the three months
ended September 30, 1997, down from $535,298 in the same period last year. The
decrease was the direct result of the reduction in net service revenue,
partially offset by lower operating costs and expenses resulting from the cost
reduction efforts taken in the fourth quarter of fiscal 1997.
 
Interest expense increased by 11.9% during the three months ended September
30, 1997, as compared to the same period last year. Although average outstanding
borrowings was less in the current quarterly period, interest expense increased
because of higher interest rates on the bank debt and the subordinated note.
 
The provision for federal and state income taxes was recorded at an
effective rate of 38% of income before taxes for the three months ended
September 30, 1997 and 1996. The Company believes that there will be sufficient
taxable income in the carryforward periods to enable utilization of the deferred
tax benefits.
 
IMPACT OF INFLATION
 
The Company's operations have not been materially affected by inflation or
changing prices because of the short-term nature of many of its contracts, and
the fact that most contracts of a longer term are subject to adjustment or have
been priced to cover anticipated increases in labor and other costs.
 
                                       -8-

<PAGE>

LIQUIDITY AND CAPITAL RESOURCES
 
The Company relies on cash provided by operations and borrowings based upon
the strength of its balance sheet to fund operations. The Company's liquidity is
assessed in terms of its overall ability to generate cash to fund its operating
and investing activities, and to reduce debt. Of particular importance in the
management of liquidity are cash flows generated from operating activities,
capital expenditure levels and an adequate bank line of credit.
 
Cash flows used in operating activities during the three months ended
September 30, 1997 was approximately $.6 million. The cash generated by the net
income and by the non-cash charges against income for depreciation and
amortization was substantially offset by the increase in prepaid expenses
relative to the fiscal 1998 liability insurance program and by the reduction in
other accrued liabilities related to the payment of costs incurred in connection
with the Special Investigation initiated by the Board of Directors on March 28,
1997, to investigate the allegations of improper exercising of stock options and
other matters by the Company's former Chairman and Chief Executive Officer,
Vincent A. Rocco, and former President, Bruce D. Cowen.
 
Cash used for investing activities was approximately $.2 million during the
three months ended September 30, 1997, primarily related to additions to
property and equipment, and an increase in other assets. The Company expects to
make capital expenditures of approximately $.3 million during the remainder of
fiscal 1998.
 
The Company relies on its bank financing arrangement to assist in funding
various operating and financing activities. The Company has available revolving
credit facility which expires June 30, 1998. Under the agreement, the Company
has a $6 million credit facility secured by accounts receivable that will reduce
quarterly to $4 million at June 30, 1998. Borrowings under the agreement will
bear interest at the bank's base rate or the Eurodollar rate plus 2%. The
agreement requires the Company to meet certain financial ratios. At September
30, 1997, outstanding borrowings pursuant to the agreement were $4.2 million, at
an average interest rate of 7.7%. The Company intends to repay a substantial
portion of the outstanding balance over the next nine months from available cash
flow.
 
At September 30, 1997, the Company's long-term debt consisted of a $7
million subordinated note issued in March 1994 in connection with the
acquisition of Environmental Solutions, Inc. and subsequently amended as of July
11, 1997. Interest on the note accrues at the greater of the interest rate paid
on the Company's bank debt or 7.75%. The outstanding balance at September 30,
1997 will be repaid in two equal installments of $3.5 million on July 1, 1998
and 1999.
 
The Company expects to increase its available cash flow over the remainder
of fiscal 1998, primarily from operations and from reductions in working capital
derived mainly from the collection of accounts receivable. The Company believes
that cash generated from operations, the cash on hand at September 30, 1997 and
available borrowings under the bank line of credit will be sufficient to meet
the Company's cash requirements for the remainder of fiscal 1998. Upon
termination of the revolving credit agreement with the bank on June 30, 1998,
the Company expects to renew or replace the facility.
 
                                       -9-


<PAGE>

NEW ACCOUNTING STANDARDS
 
In February 1997, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 128, Earnings per Share (FAS 128), which
establishes new standards for computing and presenting earnings per share
requiring the presentation of basic and diluted earnings per share. FAS 128 is
effective for the Company beginning with the fiscal quarter ending December 31,
1997, including restatement of prior periods; earlier application is not
permitted. The impact of the statement on earnings per share is not expected to
be material.
 
In June 1997, Statement of Financial Accounting Standards No. 130, Reporting
Comprehensive Income (FAS 130), was issued and establishes standards for
reporting and displaying comprehensive income and its components. FAS 130
requires comprehensive income and its components, as recognized under the
accounting standards, to be displayed in a financial statement with the same
prominence as other financial statements. The Company plans to adopt the
standard beginning in fiscal 1999, as required. Adoption is not expected to have
a material impact on the financial position or results of operations of the
Company.
 
Statement of Financial Accounting Standards No. 131, Disclosures about
Segments of an Enterprise and Related Information, also issued in June 1997,
establishes new standards for reporting information about operating segments in
annual and interim financial statements. The standard also requires descriptive
information about the way the operating segments are determined, the products
and services provided by the segments and the nature of differences between
reportable segment measurements and those used for the consolidated enterprise.
This standard will be effective for the Company in fiscal 1999. Adoption in
interim financial statements is not required until the year after initial
adoption; however, comparative prior period information is required. Adoption is
not expected to have a material impact on the financial position or results of
operations of the Company.
 
FORWARD-LOOKING STATEMENTS
 
This report contains forward-looking statements that describe the Company's
business prospects. These statements involve risks and uncertainties including,
but not limited to, regulatory uncertainty, government funding, level of demand
for the Company's services, product acceptance, industry-wide competitive
factors and political, economic or other conditions. Furthermore, market trends
are subject to changes which could adversely affect future results.
 
                      PART II: OTHER INFORMATION
 
ITEM 1. LEGAL PROCEEDINGS
 
   Reference is made to Item 3, Legal Proceedings, in the Company's Annual 
   Report on Form 10-K for the year ended June 30, 1997, for a description 
   of existing litigation against the Company.
 

                                      -10-

<PAGE>

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K
 
    (a) Exhibits -

        10.3 Second Amended and Restated Revolving Credit Agreement, among TRC
             Companies, Inc. and its subsidiaries, and BankBoston, N.A., dated
             August 25, 1997.
 
        27   Financial Data Schedule (for SEC purposes only)

    (b) Reports on Form 8-K- There were no reports on Form 8-K filed during the
        quarter ended September 30, 1997.
 
SIGNATURE
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.
 
                                       TRC COMPANIES, INC.
 
November 14, 1997                   by: /s/ Harold C. Elston, Jr.
                                       ---------------------------------
                                            Harold C. Elston, Jr.
                                         Vice President and Treasurer
                                          (Chief Accounting Officer)
 
                                       -11-


<PAGE>


                             SECOND AMENDED AND RESTATED
                              REVOLVING CREDIT AGREEMENT


                             dated as of August 25, 1997


                                        among


                                 TRC COMPANIES, INC.,
                      CERTAIN SUBSIDIARIES LISTED ON SCHEDULE I


                                         and

                                   BANKBOSTON, N.A.
         and those other lending institutions which may become a party hereto



                                         and
                              BANKBOSTON, N.A., as Agent

<PAGE>
                                  TABLE OF CONTENTS
                                           

Section 1.  DEFINITIONS AND RULES OF INTERPRETATION. .....................  1
    
Section 2.  THE LOANS. ...................................................  10
    
    Section 2.1.  Commitment to Lend.  ...................................  10
    Section 2.2.  Letters of Credit. .....................................  10
    Section 2.3.  Commitment Fee.  .......................................  11
    Section 2.4.  Reduction of Commitment.  ..............................  11
    Section 2.5.  Notes. .................................................  12
    Section 2.6.  Interest on Loans.  ....................................  12
    Section 2.7.  Interest on Overdue Amounts.   .........................  14
    Section 2.8.  Requests for Loans and Letters of Credit.  .............  14
    Section 2.9.  Funds for Loans.  ......................................  15
    Section 2.10. Termination of Credit.  ................................  15
    Section 2.11. Optional Prepayment.  ..................................  16
    Section 2.12. Mandatory Prepayment.  .................................  16
    Section 2.13. Mandatory Payment on Maturity.  ........................  17

Section 3.  PAYMENTS AND COMPUTATIONS; 
         JOINT AND SEVERAL LIABILITY; SECURITY.  .........................  17
    
    Section 3.1.  Payments.  .............................................  17
    Section 3.2.  Computations.  .........................................  17
    Section 3.3.  Interest Limitation.  ..................................  17
    Section 3.4.  Additional Costs, Etc.  ................................  18
    Section 3.5.  Capital Adequacy.  .....................................  19
    Section 3.6.  Concerning Joint and Several Liability of the 
                   Borrowers. ............................................  19
    Section 3.7.  New Borrowers.  ........................................  21
    Section 3.8.  Amendment Fee.  ........................................  21
    Section 3.9.  Security.  .............................................  22

Section 4.  REPRESENTATIONS AND WARRANTIES.  .............................  22
    
    Section 4.1.  Corporate Authority. ...................................  22
    Section 4.2.  Governmental Approvals.  ...............................  23
    Section 4.3.  Title to Property; Leases. .............................  23
    Section 4.4.  Financial Statements; Solvency. ........................  23
    Section 4.5.  No Material Changes, Etc..   ...........................  23
    Section 4.6.  Franchises, Patents, Copyrights, Etc. ..................  23
    Section 4.7.  Litigation.  ...........................................  24
    Section 4.8.  No Materially Adverse Contracts, Etc.  .................  24
    Section 4.9.  Compliance With Other Instruments, Laws, Etc. ..........  24
    Section 4.10. Tax Status.  ...........................................  24
    Section 4.11. No Event of Default.  ..................................  25
    Section 4.12. Holding Company and Investment Company Acts.  ..........  25
    Section 4.13. Absence of Financing Statements, Etc.  .................  25


<PAGE>

                                    -2-

    Section 4.14. Perfection of Security Interest.  ......................  25
    Section 4.15. Certain Transactions.  .................................  25
    Section 4.16. ERISA Compliance.  .....................................  26
    Section 4.17. Use of Proceeds. .......................................  26
    Section 4.18. Environmental Compliance.  .............................  26
    

Section 5.  AFFIRMATIVE COVENANTS OF THE BORROWERS. ......................  28
    
    Section 5.1.  Records and Accounts. ..................................  28
    Section 5.2.  Financial Statements, Certificates and Information. ....  28
    Section 5.3.  Corporate Existence and Conduct of Business. ...........  29
    Section 5.4.  Maintenance of Properties. .............................  30
    Section 5.5.  Insurance.  ............................................  30
    Section 5.6.  Taxes.  ................................................  30
    Section 5.7.  Inspection of Properties, Books, and Contracts.  .......  31
    Section 5.8.  Compliance with Laws, Contracts, Licenses and
                   Permits.  .............................................  31
    Section 5.9.  Pension Plans.  ........................................  31
    Section 5.10. Further Assurances.   ..................................  32
    Section 5.11. Notice of Potential Claims or Litigation. ..............  32
    Section 5.12. Notices. ...............................................  32
    Section 5.13. New Borrowers. .........................................  32

Section 6.  CERTAIN NEGATIVE COVENANTS OF THE BORROWERS.  ................  32
    
    Section 6.1.  Restrictions on Indebtedness.  .........................  32
    Section 6.2.  Restrictions on Liens.  ................................  33
    Section 6.3.  Restrictions on Investments.  ..........................  34
    Section 6.4.  Merger, Consolidation, and Acquisitions. ...............  36
    Section 6.5.  Sale and Leaseback.  ...................................  36
    Section 6.6.  Sales of Assets.  ......................................  36
    Section 6.7.  Collateral Value Ratio.  ...............................  37
    Section 6.8.  Interest Coverage.  ....................................  37
    Section 6.9.  Subordinated Debt.  ....................................  37

Section 7.  CONDITIONS OF FIRST LOANS.  ..................................  37
    
    Section 7.1.  Representations and Warranties.  .......................  37
    Section 7.2.  Performance; No Default.  ..............................  37
    Section 7.3.  No Adverse Change.  ....................................  37
    Section 7.4.  Corporate Action; Corporate Documents.  ................  38
    Section 7.5.  Loan Documents.  .......................................  38
    Section 7.6.  UCC Searches; Perfection of Liens.  ....................  38
    Section 7.7.  Opinion of Borrower's Counsel.  ........................  38
    Section 7.8.  No Legal Impediment.  ..................................  38
    Section 7.9.  Governmental Regulation.  ..............................  38
    Section 7.10. Accountant's Report.  ..................................  38
    Section 7.11. Payment of Fees.  ......................................  39

<PAGE>

                                  -3-

    Section 7.12. Proceedings and Documents.  ............................  39

Section 8.  CONDITIONS OF SUBSEQUENT LOANS. ..............................  39
    
    Section 8.1.  Representations True; No Event of Default. .............  39
    Section 8.2.  Performance; No Event of Default. ......................  39

Section 9.  EVENTS OF DEFAULT; ACCELERATION.  ............................  40
    
Section 10.  DISTRIBUTION OF COLLATERAL PROCEEDS.   ......................  42
    
Section 11.  SETOFF.   ...................................................  42
    
Section 12.  EXPENSES.  ..................................................  43
    
Section 13.  THE AGENT. ..................................................  44
    Section 13.1.  Appointment of Agent, Powers and Immunities. ..........  44
    Section 13.2.  Actions By Agent.  ....................................  44
    Section 13.3.  Indemnification.  .....................................  44
    Section 13.4.  Reimbursement. ........................................  45
    Section 13.5.  Documents.  ...........................................  45
    Section 13.6.  Non-Reliance on Agent and Other Banks. ................  45
    Section 13.7.  Resignation of Agent.  ................................  46
    Section 13.8.  Action by the Banks, Consents, Amendments,
                   Waivers, Etc.  ........................................  46
    Section 13.9.  Duties in the Case of Enforcement .....................  47

Section 14.  INDEMNIFICATION.  ...........................................  47

Section 15.  SURVIVAL OF COVENANTS, ETC. .................................  48

Section 16.  SYNDICATION AND PARTICIPATION.  .............................  48

Section 17.  PARTIES IN INTEREST.  .......................................  48

Section 18.  NOTICES, ETC.  ..............................................  49

Section 19.  MISCELLANEOUS.  .............................................  49

Section 20.  ENTIRE AGREEMENT, ETC.  .....................................  49

Section 21.  GOVERNING LAW.  .............................................  50

Section 22.  CONSENTS, AMENDMENTS, WAIVERS, ETC.  ........................  50
50
Section 23.  NO RESTRICTIONS WITH RESPECT TO MARGIN STOCK. ...............  50

Section 24.  TRANSITIONAL ARRANGEMENTS. ..................................  51

<PAGE>

                                  -4-


    Section 24.1.  Prior Credit Agreement Superseded. ....................  51
    Section 24.2.  Return and Cancellation of Notes.  ....................  51
    Section 24.3.  Interest and Fees under Prior Credit Agreement. .......  51
    Section 24.4.  Waiver of Defaults and Events of Default.  ............  51



                                EXHIBITS AND SCHEDULES
                                           
                                           
Exhibit A               Form of Note

Schedule 1         -    Borrowers
Schedule 3.7            -    Currently Inactive Subsidiaries
Schedule 4.7            -    Exceptions to Litigation Representation
Schedule 4.18      -    Environmental Compliance Exceptions
Schedule 6.1            -    Existing Indebtedness
Schedule 6.3(i)    -    Existing Investments


<PAGE>


                             SECOND AMENDED AND RESTATED
                              REVOLVING CREDIT AGREEMENT
                                           

    This SECOND AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT is made as of 
the 25th day of August, 1997 among TRC Companies, Inc., a Delaware 
corporation ("TRC"), the Subsidiaries listed on SCHEDULE 1 hereto (TRC and 
such Subsidiaries herein collectively referred to as the "Borrowers"), each 
of which Borrowers, unless otherwise listed on SCHEDULE 1, has its principal 
place of business at 5 Waterside Crossing, Windsor, Connecticut 06095, 
BANKBOSTON, N.A. (f/k/a The First National Bank of Boston) ("BKB"), a 
national banking association having its principal place of business at 100 
Federal Street, Boston, Massachusetts 02110, and such banks or financial 
institutions which may become a party hereto pursuant to Section 15 hereof 
(herein referred to individually as a "Bank" and, collectively, as the 
"Banks"), and BKB, as agent for the Banks (the "Agent").

    WHEREAS, the Borrowers and BKB are parties to the original Revolving 
Credit Agreement dated as of September 22, 1989 (the "Original Closing 
Date"), and amended as of September 6, 1990, June 10, 1992, June 28, 1993, 
August 5, 1993, March 21, 1994, and October 31, 1994 (as so amended, the 
"Original Credit Agreement);

    WHEREAS, the Original Credit Agreement was amended and restated pursuant 
to the Amended and Restated Revolving Credit and Term Loan Agreement dated as 
of March 15, 1995 (the "Prior Closing Date"), and amended as of August 30, 
1995 (as so amended, the "Prior Credit Agreement");

    WHEREAS, the Borrowers and BKB wish to reduce the Total Commitment 
Amount, restructure the revolving credit facility and make certain other 
changes and amendments to the Prior Credit Agreement;

    NOW THEREFORE, in consideration of the foregoing, the Borrowers and BKB, 
individually and as Agent, agree that the Original Credit Agreement is hereby 
amended and restated in its entirety as set forth herein.

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

    ACCOUNTS RECEIVABLE.  All rights of the Borrowers to payment for goods 
sold, leased or otherwise marketed in the ordinary course of business and all 
rights of the Borrowers to payment for services rendered in the ordinary 
course of business and all sums of money or other proceeds due thereon 
pursuant to transactions with account debtors, except for that 

<PAGE>

                                  -2-

portion of the sum of money or other proceeds due thereon that relate to 
sales, use or property taxes in conjunction with such transactions, recorded 
on books of account in accordance with Generally Accepted Account Principles.

    AGENT.  BKB acting as agent for the Banks.

    AGENT'S HEAD OFFICE.  The Agent's head office is located at 100 Federal 
Street, Boston, Massachusetts 02110, or at such other location as the Agent 
may designate from time to time. 

    AGREEMENT.  This Second Amended and Restated Revolving Credit Agreement, 
including the Exhibits and Schedules hereto, as amended from time to time.

    AMENDMENT DATE.  See Section 7.

    APPLICABLE RATE.  With respect to Base Rate Loans, the Applicable Rate 
shall be equal to the Base Rate as in effect from time to time.  With respect 
to Eurodollar Loans, the Applicable Rate shall be equal to the Eurodollar 
Rate for the relevant Interest Period PLUS two percent (2%).

    BALANCE SHEET DATE.  June 30, 1997.

    BANK(S).  See Preamble.

    BASE RATE.  A rate per annum (rounded upward, if necessary, to the next 
higher 1/100 of 1%) equal to the greater of: (a) the annual rate of interest 
announced from time to time by the Agent at its head office in Boston, 
Massachusetts, as its "Base Rate," or (b) the Federal Funds Effective Rate 
plus one percent (1%).  If for any reason the Agent shall have determined 
(which determination shall be conclusive absent manifest error) that it is 
unable to ascertain the Federal Funds Effective Rate for any reason, 
including, without limitation, the inability or failure of the Agent to 
obtain sufficient bids or publications in accordance with the terms thereof, 
the rate announced by the Agent at its head office as its "Base Rate" shall 
be the Base Rate until the circumstances giving rise to such inability no 
longer exist.

    BASE RATE LOANS.  All or any portion of any Loans hereunder, the interest 
rate on which is calculated by reference to the Base Rate.

    BORROWERS.  TRC and each Person listed on SCHEDULE 1 hereto as such 
schedule may be amended from time to time.

    BUSINESS DAY.  Any day on which commercial banking institutions in 
Boston, Massachusetts are open for the transaction of banking business, and, 
if the applicable Business Day relates to a Eurodollar Loan, a day on 

<PAGE>

                                  -3-

which dealings are carried on in the Eurodollar interbank market and dollar 
settlements of such dealings may be effected in New York City.

    COLLATERAL.  All of the property, rights and interest of the Borrowers 
that are or are intended to be subject to the security interests and 
mortgages created by the Security Documents.

    COLLATERAL VALUE RATIO.  See Section 6.7.

    COMMITMENT.  With respect to each Bank, the amount determined by 
multiplying such Bank's Commitment Percentage by the aggregate amount of the 
Banks' Total Commitment Amount to make Loans to the Borrowers, as the same 
may be reduced from time to time; or if such commitment is terminated 
pursuant to the terms hereof, zero.

    COMMITMENT PERCENTAGE.  With respect to each Bank, the percentage set 
forth beside its name below (subject to adjustment pursuant to Section 2.1 
hereof or upon any assignments pursuant to Section 16 hereof):

                                         Initial Commitment 
               Bank                         Percentage
               ----                         ----------
                BKB                             100%


    CONSOLIDATED OR CONSOLIDATED.  With reference to any term defined herein, 
shall mean that term as applied to the accounts of the Borrowers, 
consolidated in accordance with Generally Accepted Accounting Principles, 
after eliminating all intercompany items.

    CONSOLIDATED EBITDA.  For any period, the consolidated net income (or 
deficit) of the Borrowers, determined in accordance with Generally Accepted 
Accounting Principles, plus to the extent deducted in computing consolidated 
net income (or deficit) for such period (a) interest expense, (b) income 
taxes and (c) depreciation and amortization.

    CONSOLIDATED TOTAL INTEREST EXPENSE.  For any period, the aggregate 
amount of interest required to be paid or accrued by the Borrowers during 
such period on all Indebtedness of the Borrowers outstanding during all or 
any part of such period, whether such interest was or is required to be 
reflected as an item of expense or capitalized.

    DEFAULT.  See Section 9.

    DISTRIBUTION.  The declaration or payment of any dividend on or in 
respect of any shares of any class of capital stock of any Borrower in an 
amount in excess of an amount equal to the net income of such Borrower in any 
fiscal year, other than dividends payable solely in shares of common stock of 
a Borrower; or the purchase, redemption, or other retirement of any shares of 
any class of capital stock of any Borrower, directly or indirectly 

<PAGE>

                                  -4-

through a Subsidiary or otherwise; the return of capital by any Borrower to 
its shareholders as such; any other distribution on or in respect of any 
shares of any class of capital stock of any Borrower.

    DRAWDOWN DATE.  The date on which any Loan is made or is to be made or on 
which any Letter of Credit is issued or to be issued.

    ELIGIBLE RECEIVABLES.  The aggregate of the unpaid portions of Accounts 
Receivable (net of any credits, rebates, offsets, holdbacks or other 
adjustments or commissions payable to third parties that are adjustments to 
such Accounts Receivables) that are not outstanding for more than one hundred 
twenty (120) days past the earlier to occur of (i) the date of the respective 
invoices therefor and (ii) with respect to services, the end of the calendar 
month following the provision thereof.

    ENVIRONMENTAL LAWS.  Any judgment, decree, order, law, license, rule or 
regulation pertaining to environmental matters, including those arising under 
the Resource Conservation and Recovery Act, the Comprehensive Environmental 
Response, Compensation and Liability Act of 1980 ("CERCLA"), the Superfund 
Amendments and Reauthorization Act of 1986, the Federal Water Pollution 
Control Act, the Federal Clean Water Act, the Federal Clean Air Act, the 
Toxic Substances Control Act or any United States, state or local or any 
other statute, regulation, ordinance, order or decree relating to health, 
safety or the environment.

    ENVIRONMENTAL SERVICES CONTRACTS.  All contracts or agreements of any 
Borrower or any of their Subsidiaries to provide consultation, work or 
services with respect to matters related to any Environmental Laws.

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

    EURODOLLAR LOANS.  In relation to any Interest Period, any portions of 
the principal amount of the Loans on which a Borrower has elected pursuant to 
Section 2.6(b) hereof to pay interest based on the Eurodollar Rate.

    EURODOLLAR OFFERED RATE. The rate per annum at which deposits of dollars 
are offered to the Agent by prime banks in whatever Eurodollar interbank 
market may be selected by the Agent in its sole discretion, acting in good 
faith, at or about 10:00 a.m. local time in such interbank market, two 
Business Days prior to the commencement of an Interest Period for a period 
equal to such Interest Period in an amount substantially equal to the 
principal amount requested to be loaned at or converted to a rate based on 
the Eurodollar Offered Rate.

    EURODOLLAR RATE.  With respect to any Interest Period, the rate per 
annum, rounded upwards to the nearest 1/16 of 1%, determined by the Agent two 
Business Days prior to the commencement of such Interest Period, in 
accordance with the following formula:

<PAGE>

                                  -5-

    Eurodollar Rate = Eurodollar Offered Rate
                      -----------------------
                       1 - Reserve Rate

    EVENT OF DEFAULT.  See Section 9.

    FEDERAL FUNDS EFFECTIVE RATE.  For any period, a fluctuating interest 
rate per annum equal for each day during such period to the weighted average 
of the rates on overnight federal funds transactions with members of the 
Federal Reserve System arranged by federal funds brokers as published for 
such day by the Federal Reserve Bank of New York, or for any day on which 
such rate is not so published for such day by the Federal Reserve Bank of New 
York, the average of the quotations for such day for such transactions 
received by the Agent from three federal funds brokers of recognized standing 
selected by the Agent.

    GENERALLY ACCEPTED ACCOUNTING PRINCIPLES.  (i) When used in general, 
Generally Accepted Accounting Principles means principles which are (1) 
consistent with the principles promulgated or adopted by the Financial 
Accounting Standards Board and its predecessors or successors, in effect for 
the fiscal year ended on the Balance Sheet Date and (2) such that a certified 
public accountant would, insofar as the use of 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; and (ii) when used with reference to the Borrowers and/or any of 
their Subsidiaries such principles shall include (to the extent consistent 
with such principles) the accounting practice of the Borrowers reflected in 
their financial statements for the year ended on the Balance Sheet Date.

    GUARANTEED PENSION PLAN.  Any pension plan maintained by any Borrower or 
any of their Subsidiaries, or to which any Borrower or any of their 
Subsidiaries contributes, which is required to pay plan termination insurance 
premiums to the Pension Benefit Guaranty Corporation.

    HAZARDOUS SUBSTANCES.  See Section 4.17(b).

    INDEBTEDNESS.  All obligations, contingent and otherwise, which in 
accordance with Generally Accepted Accounting Principles should be classified 
upon the obligor's balance sheet as liabilities, or to which reference should 
be made by footnotes thereto, including, without limitation, in any event and 
whether or not so classified: (i) all debt and similar monetary obligations, 
whether direct or indirect; (ii) all liabilities secured by any mortgage, 
pledge, security interest, lien, charge, or other encumbrance existing on 
property owned or acquired subject thereto, whether or not the liability 
secured thereby shall have been assumed; and (iii) all guarantees, 
endorsements and other contingent obligations whether direct or indirect in 
respect of Indebtedness of others, including any 

<PAGE>

                                  -6-

obligation to supply funds to or in any manner to invest in, directly or 
indirectly, the debtor, to purchase Indebtedness, or to assure the owner of 
Indebtedness against loss, through an agreement to purchase goods, supplies, 
or services for the purpose of enabling the debtor to make payment of the 
Indebtedness held by such owner or otherwise, and the obligations to 
reimburse the issuer of any letters of credit, excluding obligations under 
leases classified as operating leases under Generally Accepted Accounting 
Principles.

    INTERCREDITOR AGREEMENT.  The Amended and Restated Intercreditor 
Agreement dated as of the date hereof, by and among the Parent, R&M, the 
shareholders of R&M, and the Agent.

    INTEREST PERIOD.  With respect to each Eurodollar Loan:

    (a)  initially, the period commencing on the date of a conversion from a 
Base Rate Loan into a Eurodollar Loan or the making of a Eurodollar Loan, and 
ending one (1), two (2), three (3), or six (6) months thereafter, as the case 
may be, as the Borrowers may select; and

    (b)  thereafter, each subsequent Interest Period shall begin on the last 
day of the preceding Interest Period, and end one (1), two (2), three (3), or 
six (6) months thereafter, as the case may be, as the Borrowers may select;

    (c)  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 preceding 
Business Day.

    INVESTMENTS.  All cash expenditures made and all liabilities incurred 
(contingently or otherwise) for the acquisition of stock, all or 
substantially all of the assets of, 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 Person.  In determining the aggregate amount of 
Investments outstanding at any particular time, (I) 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; (II) 
there shall be included as an Investment all interest accrued with respect to 
Indebtedness constituting an Investment unless and until such interest is 
paid, (III) 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); 
(IV) 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 (III) may be deducted when paid; and (V) there shall not be deducted 
from the aggregate amount of Investments any decrease in the value thereof.

<PAGE>

                                  -7-

    LETTERS OF CREDIT.  Letters of credit issued or to be issued by the Agent 
under Section 2.2 hereof for the account of any Borrower.

    LETTER OF CREDIT AGREEMENTS.  Letter of Credit Agreements in such form as 
may be agreed upon by any Borrower and the Agent from time to time which are 
entered into pursuant to Section 2.2 hereof, as such Letter of Credit 
Agreements are amended, varied or supplemented from time to time.

    LETTER OF CREDIT FEE.  See Section 2.2(e).

    LIENS.  Any encumbrance, mortgage, pledge, hypothecation, charge, 
restriction or other security interest of any kind securing any obligation of 
any Person.

    LOAN DOCUMENTS.  Collectively, this Agreement, the Revolving Credit 
Notes, the Security Documents, the Intercreditor Agreement and the Letter of 
Credit Agreements.

    LOAN REQUEST.  The Notice any Borrower must give the Agent, pursuant to 
Section 2.8, for each Loan or Letter of Credit requested hereunder.

    LOANS.  The revolving credit loans made or to be made to the Borrowers as 
contemplated by Section 2 hereof.

    MAJORITY BANKS.  As of any date, (a) if there are no more than two Banks 
on such date, all Banks and (b) if there are more than two Banks on such 
date, the Banks holding at least sixty-six and two-thirds percent (66 2/3%) 
of the outstanding principal amount of the Loans on such date; and if no such 
principal is outstanding, the Banks whose aggregate Commitments constitute at 
least sixty-six and two-thirds percent (66 2/3%) of the Total Commitment 
Amount.

    MATURITY DATE.  June 30, 1998.

    MAXIMUM DRAWING AMOUNT.  With respect to any Letter of Credit, the 
maximum amount from time to time which the beneficiary may draw under such 
Letter of Credit, as may be reduced from time to time pursuant to the Letter 
of Credit.

    MIE.  Monitoring Instruments for the Environment, Inc., a Massachusetts 
corporation.

    NET CASH PROCEEDS.  With respect to any sale of any assets of any of the 
Borrowers, the gross consideration received by any of the Borrowers (in cash) 
from such sale, net of the commissions, direct sales costs, normal closing 
adjustments, income taxes attributable to such sale and professional fees and 
expenses incurred directly in connection therewith to the extent the 
foregoing are actually paid in connection with such sale.

<PAGE>

                                  -8-

    NOTES.  (a) The amended and restated promissory note of the Borrowers in 
favor of BKB evidencing the Loans dated as of the date hereof and (b) the 
promissory note(s) of the Borrowers in favor of any Bank which becomes a 
party hereto pursuant to Section 16 hereof, in substantially the form of 
EXHIBIT A hereto.

    NOTICE.  Fulfillment of any of the conditions set forth in Section 18.

    OBLIGATIONS.  All indebtedness, obligations and liabilities of the 
Borrowers, individually or collectively, to the Banks and the Agent 
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, arising or 
incurred under this Agreement or a Letter of Credit Agreement or in respect 
of Loans made and the Notes or other instruments at any time evidencing any 
thereof.

    ORIGINAL CLOSING DATE.  See Preamble.

    ORIGINAL CREDIT AGREEMENT.  See Preamble.

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

    PRIOR CLOSING DATE.  See Preamble.

    PRIOR CREDIT AGREEMENT.  See Preamble.

    REIMBURSEMENT OBLIGATION.  The Borrowers' obligation to reimburse the 
Agent and the Banks on account of any drawing under any Letter of Credit as 
provided in Section 2.2(d).

    RESERVE RATE.  The rate in effect from time to time, expressed as a 
percentage, at which the Banks would be required to maintain reserves under 
Regulation D of the Board of Governors of the Federal Reserve System (or any 
successor or similar regulation relating to such reserve requirements) 
against "Eurocurrency Liabilities" (as such term is used in Regulation D) if 
such liabilities were outstanding.

    R&M.   (R&M Corporation (f/k/a Environmental Solutions, Inc.), a 
California corporation.

    R&M NOTE.  Promissory note of the Parent dated as of July 1, 1997 in 
favor of R&M having an outstanding principal amount, as of the date hereof, 
of not more than $7,000,000.

<PAGE>

                                  -9-

    SECURITY AGREEMENT.  The Security Agreement, dated as of the date hereof 
among the Borrowers and the Agent and in form and substance satisfactory to 
the Banks and the Agent.

    SECURITY DOCUMENTS.  The Security Agreement and all other instruments and 
documents, including, without limitation, Uniform Commercial Code financing 
statements, required to be executed or delivered pursuant to the Security 
Agreement.

    SUBORDINATED DEBT.  Indebtedness owing to R&M pursuant to the terms of 
the R&M Note and obligations in respect of Section 2.4 of the Asset Purchase 
Agreement dated as of March 21, 1994 by and among TRC, R&M (then known as 
Environmental Solutions, Inc.) and the shareholders of R&M.

    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.

    TOTAL COMMITMENT AMOUNT.  As of any date, the amount set forth opposite 
such date in the table set forth below, as the same may be reduced pursuant 
to Section 2.4 or Section 6.1(f) hereof:

           Period                                   Total Commitment Amount
           ------                                   -----------------------

August 25, 1997 through September 30, 1997                 $7,000,000
October 1, 1997 through December 31, 1997                  $6,000,000
January 1, 1997 through March 31, 1998                     $5,000,000
April 1, 1998 through Maturity Date                        $4,000,000

    TRC.  See Preamble.

    UNPAID REIMBURSEMENT OBLIGATIONS.  Any Reimbursement Obligation for which 
the Borrowers do not reimburse the Agent and the Banks on the date specified 
in, and in accordance with, Section 2.2(d).

    (b)  All terms of an accounting character not specifically defined herein 
shall have the meanings assigned thereto by Generally Accepted Accounting 
Principles.  All terms not specifically defined herein which are defined in 
the Uniform Commercial Code as in effect in the Commonwealth of Massachusetts 
shall have the same meanings herein as therein.  Each reference herein to a 
particular Person (including, without limitation, the Banks) shall include a 
reference to such Person's successors and permitted assigns.  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.

<PAGE>

                                  -10-

    Section 2.     THE LOANS.

    Section 2.1.  COMMITMENT TO LEND.  Subject to the terms and conditions 
set forth in this Agreement, each of the Banks severally agrees to lend to 
the Borrowers and the Borrowers may borrow and reborrow from time to time 
between the Amendment Date and the Maturity Date upon notice to the Agent 
given in accordance with Section 2.8 hereof, such sums as requested by the 
Borrowers up to a maximum aggregate principal amount outstanding (after 
giving effect to all amounts requested) at any one time equal to the Total 
Commitment Amount minus the sum of (i) the aggregate Maximum Drawing Amount 
of all Letters of Credit issued pursuant to Section 2.2 hereof and (ii) all 
Unpaid Reimbursement Obligations.  Each request for Loans hereunder shall 
constitute a representation by the Borrowers that the conditions set forth in 
Sections 7 and 8 hereof have been satisfied on the date of such request.

    Section 2.2.  LETTERS OF CREDIT.  

    (a)  Subject to the terms and conditions set forth in this Agreement, 
upon written request from the Borrowers, the Agent, on behalf of the Banks 
and on reliance upon the representations and warranties of the Borrowers 
contained herein, agrees to issue stand-by letters of credit, in such form as 
the Borrowers and the Agent may agree upon from time to time, for the account 
of the Borrowers from time to time prior to the Maturity Date, PROVIDED, 
HOWEVER, that (a) the sum of (i) all Unpaid Reimbursement Obligations and 
(ii) the aggregate Maximum Drawing Amount of all Letters of Credit, shall not 
at any time exceed $1,000,000 and (b) the sum of (i) all Unpaid Reimbursement 
Obligations, (ii) the aggregate Maximum Drawing Amount of all Letters of 
Credit and (iii) the amount of all Loans outstanding shall not at any time 
exceed the Total Commitment Amount.  No Letter of Credit shall have an 
expiration date later than the earlier of (i) one year after the date of 
issuance of the Letter of Credit or (ii) 30 days prior to the Maturity Date.

    (b)  Each Bank severally agrees that it shall be absolutely liable, 
without regard to the occurrence of any Default or Event of Default or any 
other condition precedent whatsoever, to the extent of such Bank's Commitment 
Percentage thereof, to reimburse the Agent on demand for the amount of each 
draft paid by the Agent under each Letter of Credit to the extent that such 
amount is not reimbursed by the Borrowers pursuant to this Section 2.2(d) 
(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 Agent pursuant to this Section 2.2(b) shall not be affected in 
any way by any circumstance other than the gross negligence or willful 
misconduct of the Agent.

    (c)  Each such payment made by a Bank shall be treated as the purchase by 
such Bank of a participating interest in the Borrowers' Reimbursement 
Obligation under Section 2.2(d) in an amount equal to such 

<PAGE>

                                  -11-

payment.  Each Bank shall share in accordance with its participating interest 
in any interest which accrues pursuant to Section 2.2(d).

    (d)  In order to induce the Agent to issue, extend and renew each Letter 
of Credit, the Borrowers hereby agree that on each date that any draft 
presented under any Letter of Credit is honored by the Agent or the Agent 
otherwise makes payment with respect thereto, the Borrowers will reimburse 
the Agent, with respect to each Letter of Credit issued, extended or renewed 
by the Agent hereunder (i) the amount paid by the Agent under or with respect 
to such Letter of Credit, and (ii) the amount of any taxes, fees, charges or 
other reasonable out-of-pocket costs and expenses whatsoever incurred by the 
Agent or any Bank in connection with any payment made by the Agent or any 
Bank under, or with respect to, such Letter of Credit (at the Borrowers' 
option, any such Reimbursement Obligation may be satisfied by conversion of 
such Reimbursement Obligation to the Base Rate Loan hereunder, PROVIDED THAT 
the conditions set forth in Section 8 hereof have been satisfied).

    (e)  The Borrowers shall pay a Letter of Credit Fee to the Agent equal to 
(i) one percent (1%) per annum of the Maximum Drawing Amount of all 
performance standby Letters of Credit, and (ii) two percent (2%) per annum of 
the Maximum Drawing Amount of all Letters of Credit that support financial 
obligations, payable in advance on the date of issuance of the applicable 
letter of credit (but in no case less than $350.00).  One-eighth of one 
percent (1/8%) of the Letter of Credit Fee shall be retained by the Agent, 
and the balance shall be shared by the Banks pro-rata in accordance with 
their Commitment Percentages.

    Each such payment shall be made to the Agent at the Agent's Head Office 
in immediately available funds.  Interest on any and all amounts remaining 
unpaid by the Borrowers under this Section 2.2 at any time from the date such 
amounts become due and payable (whether as stated in this Section 2.2, by 
acceleration or otherwise) until payment in full (whether before or after 
judgment) shall be payable to the Agent on demand at the rate specified in 
Section 2.7 for overdue amounts.

    Section 2.3.  COMMITMENT FEE.  The Borrowers agree to pay to the Banks a 
commitment fee at the rate of one-half of one percent (1/2%) per annum on the 
unused portion of the Total Commitment Amount during each calendar month or 
portion thereof from the Amendment Date until the Maturity Date (or to the 
date of termination in full of the Commitments, if earlier).

    Section 2.4.  REDUCTION OF COMMITMENT.  Any Borrower shall have the right 
at any time and from time to time upon five (5) Business Days' written notice 
to the Agent to reduce by $1,000,000 or an integral multiple thereof or 
terminate entirely the amount of the unborrowed portion of the Total 
Commitment Amount, if any, which exceeds the aggregate Maximum Drawing Amount 
of all Letters of Credit issued pursuant to Section 2.2 hereof, whereupon the 
Commitment of the Banks shall be reduced PRO RATA in 

<PAGE>

                                  -12-

accordance with their respective Commitment Percentages by the amount 
specified in such notice or terminated, as the case may be.  The Agent will 
notify the Banks promptly after receiving any notice of the Borrowers 
pursuant to this Section 2.4.  No reduction or termination of the Total 
Commitment Amount once made may be revoked; the portion of the Total 
Commitment Amount reduced or terminated may not be reinstated; and amounts in 
respect of such reduced or terminated portion may not be reborrowed.

    Section 2.5.  NOTES.  The Loans shall be evidenced by the Notes.  One 
Note shall be payable to the order of each Bank in a principal amount equal 
to such Bank's Commitment or, if less, the outstanding amount of all Loans 
made by such Bank, plus interest accrued thereon, as set forth below.  The 
Borrowers irrevocably authorize each Bank to make or cause to be made, in 
connection with a Drawdown Date of any Loan or at the time of receipt of any 
payment of principal on such Bank's Note, an appropriate notation on such 
Bank's records reflecting the making of the Loan or the receipt of such 
payment (as the case may be).  The outstanding amount of the 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 Borrowers hereunder or under the Notes to make 
payments of principal of or interest on any Note when due.

    Section 2.6.  INTEREST ON LOANS.

    (a)  As of the Amendment Date, the outstanding principal amount of the 
Loans shall bear interest at the Applicable Rate.  Interest shall be payable 
(x) monthly in arrears on the last Business Day of each calendar month for 
the immediately preceding month, on all Base Rate Loans, (y) on the last day 
of the applicable Interest Period for Eurodollar Loans having an interest 
period of three months or shorter, and if such Interest Period is longer than 
three months, quarterly in arrears on the last business day for each calendar 
quarter for the immediately preceding calendar quarter, and (z) on the 
Maturity Date for all Loans.

    (b)  At the Borrowers' option, so long as no Default or Event of Default 
has occurred and is then continuing, the Borrowers may (i) elect to convert 
any Base Rate Loan or a portion thereof to a Eurodollar Loan, (ii) at the 
time of any Loan Request, specify that such requested Loan shall be a 
Eurodollar Loan, or (iii) upon expiration of the applicable Interest Period, 
elect to maintain an existing Eurodollar Loan as such, PROVIDED that the 
Borrowers give notice to the Agent pursuant to Section 2.6(c) hereof.  Upon 
determining any Eurodollar Rate, the Agent shall forthwith provide notice 
thereof to the Borrowers, and each such notice to the Borrowers shall be 
considered prima facie correct and binding, absent manifest error.

    (c)  Three (3) Business Days prior to the making of any Loan which will 
be a Eurodollar Loan or the conversion of any Base Rate Loan to a 

<PAGE>

                                  -13-

Eurodollar Loan, or, in the case of an outstanding Eurodollar Loan, the 
expiration date of the applicable Interest Period, the Borrowers shall give 
written or telecopy notice received by the Agent not later than 2:00 p.m. 
(Boston time) of its election pursuant to Section 2.6(b).  Each such notice 
delivered to the Agent shall specify the aggregate principal amount of the 
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 Loans, and shall be irrevocable and binding upon the Borrowers.  
If the Borrowers shall fail to give the Agent notice of their election 
hereunder together with all of the other information required by this Section 
2.6(c) with respect to any Loan, whether at the end of an Interest Period or 
otherwise, such Loan shall be deemed a Base Rate Loan.

    (d)  Notwithstanding anything herein to the contrary, the Borrowers may 
not specify an Interest Period that would extend beyond the Maturity Date 
with respect to any Loans.

    (e)  All Eurodollar Loans shall be in a minimum amount of not less than 
$1,000,000.  In no event shall the Borrowers have more than five (5) 
different maturities of Eurodollar Loans outstanding at any time.  All 
requests for Loans which will be Base Rate Loans shall be in a minimum amount 
of $100,000 or a greater integral multiple thereof.

    (f)  The Borrowers agree to indemnify the Agent and the Banks and to hold 
them harmless from and against any reasonable loss, cost or expense that the 
Agent or any Bank may sustain or incur as a consequence of (a) default by the 
Borrowers in payment of the principal amount of or any interest on any 
Eurodollar Loans as and when due and payable, including any such loss or 
expense arising from interest or fees payable by the Agent or any Bank to 
lenders of funds obtained by it in order to maintain its Eurodollar Loans, 
(b) default by the Borrowers in making a borrowing or conversion after the 
Borrowers have given (or are deemed to have given) notice pursuant to Section 
2.6(c), and (c) the making of any payment of a Eurodollar Loan or the making 
of any conversion of any such 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 the Agent of (i) its cost of 
obtaining the funds for the Loan being paid, prepaid, converted, or not 
borrowed (based on the Eurodollar Rate) for the period from the date of such 
payment, prepayment, conversion, or failure to borrow 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 the Agent) that would be realized by the Agent or any Bank in reemploying 
the funds so paid, prepaid, converted, or not borrowed for such period or 
Interest Period, as the case may be.

    (g)  Notwithstanding any other provisions of this Agreement, if (a) the 
introduction of, any change in, or any change in the interpretation of, 

<PAGE>

                                  -14-

any law or regulation applicable to the Agent or any Bank shall make it 
unlawful, or any central bank or other governmental authority having 
jurisdiction thereof shall assert that it is unlawful, for the Agent or any 
Bank to perform its obligations in respect of any Eurodollar Loans, or (b) if 
the Agent or any Bank 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 the Agent or such Bank in any Eurodollar 
interbank market, or (iii) the Eurodollar Rate does not or will not 
accurately reflect the cost to the Agent or such Bank for obtaining or 
maintaining the applicable Eurodollar Loans during any Interest Period, then 
the Agent shall promptly give telephonic or telecopy notice of such 
determination to the Borrowers (which notice shall be conclusive and binding 
upon the Borrowers absent manifest error).  Upon such notification by the 
Agent, the obligation of the Banks to make Loans which will become Eurodollar 
Loans shall be suspended until the Agent and the affected Bank(s) determines 
that such circumstances no longer exist, and 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 2.7.  INTEREST ON OVERDUE AMOUNTS.  Except as otherwise limited 
by Section 3.3 hereof, overdue principal and interest on the Loans and all 
other overdue amounts payable hereunder shall bear interest payable on demand 
at a rate per annum equal to one percent (1%) above the Applicable Rate, 
until such amount shall be paid in full (after as well as before judgment).

    Section 2.8.  REQUESTS FOR LOANS AND LETTERS OF CREDIT.  The Borrowers 
shall give to the Agent written notice (or telephonic notice confirmed in a 
writing or a telecopy) of each Loan requested hereunder (a "Loan Request") 
not later than 11:00 a.m. (a) on the proposed Drawdown Date of any Base Rate 
Loan, or (b) two (2) Business Days prior to the requested date of issuance of 
any Letter of Credit.  Any Loan Request for a Eurodollar Rate Amount shall be 
given within the time frame specified in Section 2.6(c).  Each such notice 
shall specify the principal amount of the Loan requested and shall reflect 
the Maximum Drawing Amount of all Letters of Credit outstanding.  Each Loan 
Request shall be irrevocable and binding on the Borrowers, and shall obligate 
the Borrowers to accept the Loan requested from the Agent on the proposed 
Drawdown Date.

    Section 2.9.  FUNDS FOR LOANS.

    (a)  Not later than 2:00 p.m. (Boston time) on the proposed Drawdown Date 
of any Loan, each of the Banks will make available to the Agent, at its Head 
Office, in immediately available funds, the amount of such Bank's Commitment 
Percentage of the amount of the requested Loan. 

<PAGE>

                                  -15-

Upon receipt from each Bank of such amount, and if the Agent is in receipt of 
the documents required by Sections 7 or 8, as the case may be, and the other 
conditions set forth therein are satisfied, to the extent applicable, the 
Agent will make available to the Borrower the aggregate amount of such Loan 
made available to the Agent by the Banks.  The failure or refusal of any Bank 
to make available to the Agent at the aforesaid time and place on any 
Drawdown Date the amount of its Commitment Percentage of the requested Loan 
shall not relieve any other Bank from its several obligations hereunder to 
make available to the Agent the amount of such other Bank's Commitment 
Percentage of any requested Loan.

    (b)  The Agent may (unless notified to the contrary by any Bank by 12:00 
noon (Boston time) on any Drawdown Date assume that each Bank has made 
available to the Agent the amount of such Bank's Commitment Percentage with 
respect to the Loan to be made on such Drawdown Date, and the Agent may (but 
shall not be required to), in reliance upon such assumption, make available 
to the Borrowers a corresponding amount.  If any Bank makes such amount 
available to the Agent on a date after such Drawdown Date, such Bank shall 
pay the 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 Agent for federal funds acquired by 
the Agent during each day included in such period TIMES (ii) the amount equal 
to such Bank's Commitment Percentage of such Loans, TIMES (iii) a fraction, 
the numerator of which is the number of days that elapse from and including 
such Drawdown Date to but not including the date on which the amount equal to 
such Bank's Commitment Percentage of such Loans shall become immediately 
available to the Agent or such Bank, as applicable, and the denominator of 
which is 365.  A statement of the 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 Agent by such Bank.  If such amount is not in 
fact made available to the Agent by such Bank within three (3) Business Days 
of such Drawdown Date, the Agent shall be entitled to debit the Borrowers' 
accounts to recover such amount from the Borrowers, with interest thereon at 
the rate per annum applicable to any Loans made on such Drawdown Date.

    Section 2.10.  TERMINATION OF CREDIT.  If any Event of Default shall 
occur, any unused portion of the Total Commitment Amount hereunder shall 
forthwith terminate and the Banks shall be relieved of all obligations to 
make Loans to, and the Agent shall be relieved of all obligations to issue 
Letters of Credit for the account of, any of the Borrowers; or if on any 
Drawdown Date the conditions precedent to the making of the Loans to be made 
on such Drawdown Date or the issuance of any Letters of Credit to be issued 
on such date are not satisfied (except as a consequence of a default on the 
part of the Agent or any Bank), the Agent may by Notice to the Borrowers, 
terminate the unused portion of the Total Commitment Amount hereunder, and 
upon such Notice being given such unused portion of the Total Commitment 
Amount hereunder shall terminate immediately and the Banks 

<PAGE>

                                  -16-

shall be relieved of all further obligations to make Loans to, and the Agent 
shall be relieved of all further obligations to issue Letters of Credit for 
the account of, the Borrowers hereunder.  No termination of any portion of 
the Total Commitment Amount hereunder shall relieve the Borrowers of any of 
their existing Obligations to the Banks hereunder or elsewhere.

    Section 2.11.  OPTIONAL PREPAYMENT.  Each Borrower shall have the right 
to prepay Eurodollar Loans made to such Borrower hereunder as a whole or in 
part, on the last day of the Interest Period relating thereto, without 
premium or penalty.  Each Borrower shall also have the right at any time to 
prepay Base Rate Loans at any time, as a whole or in part, without premium or 
penalty; PROVIDED that the Agent may require one (1) Business Days' Notice of 
such prepayments and, PROVIDED, FURTHER that each partial prepayment shall be 
in the aggregate principal amount of $100,000 or a multiple thereof.  Subject 
to the conditions of Section 2.1 hereof, amounts so prepaid may be 
reborrowed.  In addition, each Borrower may, upon three (3) Business Days' 
Notice, prepay all, but not less than all, of the Eurodollar Loans subject to 
a particular Interest Period on a date other than the last day of the 
Interest Period relating thereto subject to the terms and conditions of 
Section 2.6(f) hereof.

    Section 2.12.  MANDATORY PREPAYMENTS.

    (a)  If at any time (including, without limitation, after giving effect 
to the mandatory reductions of the Total Commitment Amount pursuant to the 
definition thereof) the sum of (i) the outstanding Loans and (ii) the 
aggregate Maximum Drawing Amount of all Letters of Credit issued pursuant to 
Section 2.2 shall exceed the Total Commitment Amount then in effect, the 
Borrowers shall immediately make a payment to the Agent in the amount 
required to eliminate any such excess, together with all amounts, if any, due 
under Section 2.10 hereof.

    (b)  In the event that TRC sells or otherwise disposes of MIE then as 
soon as practicable and in any event within ten (10) days after receipt by 
TRC of the net proceeds of such sale, the Borrowers shall prepay the Loans in 
an amount equal to the Net Cash Proceeds of such sale.  At least two (2) 
Business Days prior to the prepayment of the Loans pursuant to this Section 
2.12(b), the Borrowers shall deliver to the Agent a statement certified by 
the principal financial or accounting officer of TRC setting forth the gross 
consideration for such sale and in reasonable detail a computation of the Net 
Cash Proceeds from such sale and the deductions taken to arrive at such Net 
Cash Proceeds.  The Total Commitment Amount shall be permanently reduced by 
the amount of such mandatory prepayment but in any event shall not be reduced 
below $4,000,000.

    (c)  In the event any of the Borrowers are paid restitution by either 
Vincent A. Rocco or Bruce D. Cowen or both arising from their alleged actions 
with respect to the exercising of stock options of the Borrowers, the 
Borrowers shall immediately upon receipt thereof, prepay the Loans in an 

<PAGE>

                                  -17-

amount equal to the proceeds thereof.  The Total Commitment Amount shall be 
permanently reduced by the amount of such mandatory prepayment but in any 
event shall not be reduced below $4,000,000.

    Section 2.13.  MANDATORY PAYMENT ON MATURITY.  The Borrowers jointly and 
severally promise to pay on the Maturity Date, and there shall become 
absolutely due and payable on the Maturity Date, all of the Loans outstanding 
on such date, together with any and all accrued and unpaid interest thereon.

    Section 3.     PAYMENTS AND COMPUTATIONS; JOINT AND SEVERAL LIABILITY;
SECURITY.

    Section 3.1.  PAYMENTS.  All payments of principal, interest, commitment 
fees, letter of credit fees and any other amounts due hereunder shall be made 
by the Borrowers to the Agent in immediately available funds at the Agent's 
head office at 100 Federal Street, Boston, Massachusetts 02110.  The Agent 
shall be entitled to debit the Borrowers' account with the Agent in the 
amount of each such payment when due in order to effect timely payment 
thereof.

    Section 3.2.  COMPUTATIONS.  All computations of interest on the Loans 
and of commitment fees, and letter of credit fees shall be based on a 360-day 
year and paid for the actual number of days elapsed.  Whenever a payment 
hereunder or under the Notes becomes due on a day which 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.

    Section 3.3.  INTEREST LIMITATION.  Notwithstanding any other term of 
this Agreement or the Notes 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 any Note 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 under applicable law 
(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), so that the maximum of all amounts constituting 
interest under applicable law, howsoever computed, shall never exceed as to 
any person liable therefor such lawful maximum, and any term of this 
Agreement, the Notes, the Letter of Credit Agreements or any other document 
referred to herein or therein which could be construed as providing for 
interest in excess of such lawful maximum shall be and hereby is made 
expressly subject to and modified by the provisions of this paragraph.

    Section 3.4.  ADDITIONAL COSTS, ETC.  If any present or future applicable 
law, which expression, as used herein, includes statutes, rules and 
regulations thereunder and interpretations thereof by any competent court or 
by any governmental or other regulatory body or official charged with the 


<PAGE>

                                  -18-

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, the Loans or the Letters of 
Credit (other than taxes based upon or measured by the income or profits of 
such Bank), or

    (b)  materially change the basis of taxation (except for changes in taxes 
on income or profits) 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)  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, or 
letters of credit issued by, an office of such Bank, or

    (d)  impose on such Bank any other conditions or requirements with 
respect to this Agreement, the other Loan Documents, the Loans, the Bank's 
Commitment, the Letters of Credit or any class of loans or commitments or 
letters of credit of which any of the Loans, the Bank's Commitment or the 
Letters of Credit 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, the Bank's Commitment, or the 
Letters of Credit; or

         (ii) to reduce the amount of principal, interest or other amount 
payable to such Bank hereunder on account of the Bank's Commitment, the 
Loans, drawings under the Letters of Credit, or

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

then, and in each such case, the Borrowers will, upon demand made by such 
Bank or the Agent at any time and from time to time and as often as the 
occasion therefor may arise, pay to such Bank such additional amounts as will 
be sufficient to compensate such Bank for such additional cost, reduction, 
payment or foregone interest or other sum (after such Bank shall 

<PAGE>

                                  -19-

have allocated the same fairly and equitably among all customers of any class 
generally affected thereby).

    Section 3.5.  CAPITAL ADEQUACY.  If any present or future applicable law, 
governmental rule, regulation, policy, guideline or directive (whether or not 
having the force of law) or the interpretation thereof by a court or 
governmental authority with appropriate jurisdiction affects the amount of 
capital required or expected to be maintained by any Bank or any corporation 
controlling such Bank determines that the amount of capital required to be 
maintained by it is increased by or based upon such Bank's commitment to 
make, or maintenance of, Loans or Letters of Credit hereunder, then such Bank 
may notify the Borrowers of such fact.  To the extent that the costs of such 
increased capital requirements are not reflected in the Base Rate, the 
Borrowers and such Bank shall thereafter attempt to negotiate in good faith, 
within thirty (30) days of the day on which the Borrowers receive such 
notice, an adjustment payable hereunder that will adequately compensate such 
Bank in light of these circumstances.  If the Borrowers and such Bank are 
unable to agree to such adjustment within thirty (30) days of the date on 
which the Borrowers receive such notice, then commencing on the date of such 
notice (but not earlier than the effective date of any such increased capital 
requirement), the rate payable hereunder shall increase by an amount that 
will, in such Bank's reasonable determination, provide adequate compensation, 
such amount to be considered PRIMA FACIE correct and binding, absent manifest 
error.  Such Bank shall allocate such cost increases among its customers in 
good faith and on an equitable basis.

    Section 3.6.  CONCERNING JOINT AND SEVERAL LIABILITY OF THE BORROWERS.

         (a)  Each of the Borrowers is accepting joint and several liability 
hereunder and under the other Loan Documents in consideration of the 
financial accommodations to be provided by the Agent and the Banks under this 
Agreement, for the mutual benefit, directly and indirectly, of each of the 
Borrowers and in consideration of the undertakings of each other Borrower to 
accept joint and several liability for the Obligations.

         (b)  Each of the Borrowers, jointly and severally, hereby 
irrevocably and unconditionally accepts, not merely as a surety but also as a 
co-debtor, joint and several liability with the other Borrowers, with respect 
to the payment and performance of all of the Obligations (including, without 
limitation, any Obligations arising under this Section 3.6), it being the 
intention of the parties hereto that all the Obligations shall be the joint 
and several Obligations of each of the Borrowers without preferences or 
distinction among them.

         (c)  If and to the extent that any of the Borrowers shall fail to 
make any payment with respect to any of the Obligations as and when due or to 
perform any of the Obligations in accordance with the terms thereof, 

<PAGE>

                                  -20-

then in each such event the other Borrowers will make such payment with 
respect to, or perform, such Obligation.

         (d)  The Obligations of each of the Borrowers under the provisions 
of this Section 3.6 constitute full recourse Obligations of each of the 
Borrowers enforceable against each such corporation to the full extent of its 
properties and assets, irrespective of the validity, regularity or 
enforceability of this Agreement or any other circumstance whatsoever.

         (e)  Except as otherwise expressly provided in this Agreement, each 
of the Borrowers hereby waives notice of acceptance of its joint and several 
liability, notice of any Loans made under this Agreement, notice of any 
action at any time taken or omitted by the Agent or the Banks under or in 
respect of any of the Obligations, and, generally, to the extent permitted by 
applicable law, all demands, notices and other formalities of every kind in 
connection with this Agreement.  Except as otherwise expressly provided in 
this Agreement, each of the Borrowers hereby assents to, and waives notice 
of, any extension or postponement of the time for the payment of any of the 
Obligations, the acceptance of any payment of any of the Obligations, the 
acceptance of any partial payment thereon, any waiver, consent or other 
action or acquiescence by the Agent or the Banks at any time or times in 
respect of any default by any of the Borrowers in the performance or 
satisfaction of any term, covenant, condition or provision of this Agreement, 
any and all other indulgences whatsoever by the Agent or the Banks in respect 
of any of the Obligations, and the taking, addition, substitution or release, 
in whole or in part, at any time or times, of any security for any of the 
Obligations or the addition, substitution or release, in whole or in part, of 
any of the Borrowers.  Without limiting the generality of the foregoing, each 
of the Borrowers assents to any other action or delay in acting or failure to 
act on the part of the Agent or the Banks with respect to the failure by any 
of the Borrowers to comply with any of its respective Obligations, including, 
without limitation, any failure strictly or diligently to assert any right or 
to pursue any remedy or to comply fully with applicable laws or regulations 
thereunder, which might, but for the provisions of this Section 3.6, afford 
grounds for terminating, discharging or relieving any of the Borrowers, in 
whole or in part, from any of its Obligations under this Section 3.6, it 
being the intention of each of the Borrowers that, so long as any of the 
Obligations hereunder remain unsatisfied, the Obligations of such Borrowers 
under this Section 3.6 shall not be discharged except by performance and then 
only to the extent of such performance.  The Obligations of each of the 
Borrowers under this Section 3.6 shall not be diminished or rendered 
unenforceable by any winding up, reorganization, arrangement, liquidation, 
reconstruction or similar proceeding with respect to any of the Borrowers, 
the Agent or the Banks.  The joint and several liability of the Borrowers 
hereunder shall continue in full force and effect notwithstanding any 
absorption, merger, amalgamation or any other change whatsoever in the name, 
membership, constitution or place of formation of any of the Borrowers, the 
Agent or Banks.

<PAGE>

                                  -21-

         (f)  The provisions of this Section 3.6 are made for the benefit of 
the Agent and the Banks and their successors and assigns, and may be enforced 
by it or them from time to time against any or all of the Borrowers as often 
as occasion therefor may arise and without requirement on the part of the 
Agent and the Banks first to marshall any of their claims or to exercise any 
of their rights against any other Borrower or to exhaust any remedies 
available to them against any other Borrower or to resort to any other source 
or means of obtaining payment of any of the Obligations hereunder or to elect 
any other remedy.  The provisions of this Section 3.6 shall remain in effect 
until all of the Obligations shall have been paid in full or otherwise fully 
satisfied.  If at any time, any payment, or any part thereof, made in respect 
of any of the Obligations, is rescinded or must otherwise be restored or 
returned by the Agent and the Banks upon the insolvency, bankruptcy or 
reorganization of any of the Borrowers, or otherwise, the provisions of this 
Section 3.6 will forthwith be reinstated in effect, as though such payment 
had not been made.

         (g)  Each Borrower hereby agrees that it will not enforce any of its 
rights of contribution or subrogation against any other Borrower with respect 
to any liability incurred by it hereunder or under any of the other Loan 
Documents, any payments made by it to the Agent or any Bank with respect to 
any of the Obligations or any collateral security therefor until such time as 
all Obligations have been paid in full or such other Borrower shall be 
released of all Obligations by the Agent or such Bank.  If, notwithstanding 
the foregoing, any payment shall be made to any Borrower on account of such 
subrogation or contribution rights at any time when the Obligations shall not 
have been paid in full, each and every amount so paid will forthwith be paid 
over to such Bank to be credited and applied to the Obligations.

    Section 3.7.  NEW BORROWERS.  The Majority Banks may, in their sole 
discretion, require that any newly-created Subsidiaries, any Subsidiaries 
acquired pursuant to Section 6.4 hereof, or any Inactive Subsidiaries listed 
on SCHEDULE 3.7 hereto, become Borrowers hereunder by signing Notes, entering 
into an amendment to this Agreement with the other parties hereto providing 
that such Subsidiary shall become a Borrower hereunder, and providing such 
other documentation as the Majority Banks may reasonably request including, 
without limitation, documentation with respect to conditions noted in Section 
7 hereof. In such event, the parties hereto will amend SCHEDULE 1 hereto.

    Section 3.8.  AMENDMENT FEE.  The Borrowers shall pay to the Agent on the 
Amendment Date, an amendment fee in the amount of $35,000 (the "Amendment 
Fee").

    Section 3.9.  SECURITY.  The Obligations shall be secured by a perfected 
first priority security interest (subject only to liens permitted under 
Section 6.2 entitled to priority under applicable law) in each Borrower's 
accounts receivables, 

<PAGE>

                                  -22-

whether now owned or hereafter acquired, pursuant to the terms of the 
Security Documents to which such Borrower is a party.

    Section 4.     REPRESENTATIONS AND WARRANTIES.  The Borrowers jointly and 
severally represent and warrant to the Agent and the Banks that on and as of 
the date of this Agreement:

    Section 4.1.  CORPORATE AUTHORITY.

    (a)  INCORPORATION; GOOD STANDING.  Each of the Borrowers and their 
Subsidiaries (i) is a corporation duly organized, validly existing and in 
good standing under the laws of its respective state 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 such Borrower or Subsidiary.

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

    (c)  ENFORCEABILITY.  The execution, delivery and performance of the Loan 
Documents will result in valid and legally binding obligations of each of the 
Borrowers enforceable against each 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 4.2.  GOVERNMENTAL APPROVALS.  The execution, delivery and 
performance by the Borrowers of the Loan Documents and the transactions 
contemplated hereby and thereby do not require any approval or consent of, 

<PAGE>

                                  -23-

or filing with, any governmental agency or authority other than those already 
obtained.

    Section 4.3.  TITLE TO PROPERTIES; LEASES.  The Borrowers and their 
Subsidiaries own all of their respective assets reflected in the consolidated 
balance sheet of the Borrowers and their Subsidiaries as at the Balance Sheet 
Date or acquired since that date (except property and assets 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 those 
permitted by Section 6.2 hereof.

    Section 4.4.  FINANCIAL STATEMENTS; SOLVENCY.  (a) There has been 
furnished to the Agent a consolidated balance sheet of the Borrowers and 
their Subsidiaries dated the Balance Sheet Date, and a consolidated statement 
of operations for the fiscal year then ended, certified by the Borrowers' 
independent certified public accountants.  Such balance sheet and statement 
of operations have been prepared in accordance with Generally Accepted 
Accounting Principles and fairly present the financial condition of the 
Borrowers as at the close of business on the date thereof and the results of 
operations for the period then ended.  There are no contingent liabilities of 
the Borrowers or any of their Subsidiaries as of such date involving material 
amounts, known to the officers of any of the Borrowers not disclosed in said 
balance sheet and the related notes thereto.

    (b) The Borrowers (both before and after giving effect to the 
transactions contemplated by this Agreement) are solvent, 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 will have, access to adequate capital for the conduct of their 
business and the ability to pay their debts from time to time incurred in 
connection therewith as such debts mature.

    Section 4.5.  NO MATERIAL CHANGES, ETC.  Since the Balance Sheet Date, 
there have occurred no material adverse changes in the financial condition or 
business of the Borrowers and their Subsidiaries as shown on or reflected in 
the consolidated balance sheet of the Borrowers and their Subsidiaries as at 
the Balance Sheet Date, or the consolidated statement of operations for the 
fiscal year 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 business or financial condition of the Borrowers or their 
Subsidiaries. Since the Balance Sheet Date, there has not been any  
Distribution by any of the Borrowers.

    Section 4.6.  FRANCHISES, PATENTS, COPYRIGHTS, ETC.  Each of the 
Borrowers and their 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 without known conflict with any rights of 
others.

<PAGE>

                                     -24-

    Section 4.7.  LITIGATION.  Except as set forth on SCHEDULE 4.7 hereto,
there are no actions, suits, proceedings or investigations of any kind pending
or threatened against any of the Borrowers or any of their Subsidiaries before
any court, tribunal or administrative agency or board which, if adversely
determined, might, either in any case or in the aggregate, materially adversely
affect the properties, assets, financial condition or business of the Borrowers
and their Subsidiaries, considered as a whole, or materially impair the right of
the Borrowers and their 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 sheets of the Borrowers, or which
question the validity of any of the Loan Documents, or any action taken or to be
taken pursuant hereto or thereto.

    Section 4.8.  NO MATERIALLY ADVERSE CONTRACTS, ETC.  None of the Borrowers
nor any of their 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 Borrowers' officers has or is expected in the future to have
a materially adverse effect on the business, assets or financial condition of
the Borrowers and their Subsidiaries as a whole.  None of the Borrowers nor any
of their Subsidiaries is a party to any contract or agreement which in the
judgment of the Borrowers' officers has or is expected to have any materially
adverse effect on the business of the Borrowers and their Subsidiaries as a
whole, except as otherwise reflected in adequate reserves.

    Section 4.9.  COMPLIANCE WITH OTHER INSTRUMENTS, LAWS, ETC.  None of the
Borrowers nor any of their Subsidiaries is violating any provision of their
charter documents or bylaws or 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 result in the imposition of substantial penalties or
materially and adversely affect the financial condition, properties or business
of any of the Borrowers or any of their Subsidiaries.

    Section 4.10.  TAX STATUS.  The Borrowers and their Subsidiaries have made
or filed all federal and state income and all other tax returns, reports and
declarations required by any jurisdiction to which any of them are subject
(unless and only to the extent that such Borrower or such Subsidiary has set
aside on its books provisions reasonably adequate for the payment of all unpaid
and unreported taxes); and have paid all taxes and other governmental
assessments and charges 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 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.  There are no unpaid taxes in any
material amount claimed to be due

<PAGE>

                                     -25-

by the taxing authority of any jurisdiction, and the officers of the Borrowers 
and their Subsidiaries know of no basis for any such claim.

    Section 4.11.  NO EVENT OF DEFAULT.  No Default or Event of Default has
occurred and is continuing as of the date of this Agreement.

    Section 4.12.  HOLDING COMPANY AND INVESTMENT COMPANY ACTS.  None of the
Borrowers nor any of their 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
are any of them a "registered investment company", or an "affiliated company" or
a "principal underwriter" of a "registered investment company", as such terms
are defined in the Investment Company Act of 1940, as amended.

    Section 4.13.  ABSENCE OF FINANCING STATEMENTS, ETC.  Except as
contemplated by Section 6.2 of this Agreement, there is no financing statement,
security agreement, chattel mortgage, real estate mortgage or other document
filed or recorded with any filing records, registry, or other public office,
which purports to cover, affect or give notice of any present or possible future
lien on, or security interest in, any assets or property of any of the Borrowers
or any of their Subsidiaries or rights thereunder.

    Section 4.14.  PERFECTION OF SECURITY INTEREST.  All filings, assignments,
pledges and deposits of documents or instruments required to be made by the
Borrowers hereunder have been made and all other actions have been taken to the
satisfaction of the Agent required to be taken by the Borrowers hereunder to
establish and perfect the Agent's security interest in the Collateral.  The
Collateral and the Agent's rights with respect to the Collateral are not subject
to any setoff, claims, withholdings or other defenses.  The Borrowers are the
owner of the Collateral free from any lien, security interest, encumbrance and
any other claim or demand, except for liens permitted under Section 6.2.

    Section 4.15.  CERTAIN TRANSACTIONS.  Except as may be disclosed in the
Borrowers' proxy statements, none of the officers, directors, or employees of
the Borrowers nor their Subsidiaries is presently a party to any transaction
with any other Borrower or Subsidiary (other than for services as employees,
officers and directors), including, without limitation, 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 any of the Borrowers, 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 4.16.  ERISA COMPLIANCE.  To the best of the Borrowers' knowledge,
the Borrowers and their Subsidiaries have complied in all material respects

<PAGE>

                                     -26-

with ERISA, including without limitation, the provisions thereof respecting 
funding requirements for, and the termination of, plans and respecting 
prohibited transactions thereunder, and the funding of any Guaranteed Pension 
Plan of any of the Borrowers and their Subsidiaries complies with the minimum 
funding standards of Section 412 of the Internal Revenue Code for 1954, as 
amended.

    Section 4.17.  USE OF PROCEEDS.  The proceeds of the Loans shall be used
for working capital and other general corporate purposes.  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 4.18.  ENVIRONMENTAL COMPLIANCE.  The Borrowers have taken all
necessary steps to investigate the past and present condition and usage of their
and their Subsidiaries' properties and the operations conducted thereon and,
based upon such diligent investigation, have determined that,

    (a) Except as set forth on SCHEDULE 4.18 attached hereto, none of the
Borrowers, their Subsidiaries or any operator of their properties is in
violation, or alleged violation, of any judgment, decree, order, law, 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 or the environment
(hereinafter "Environmental Laws"), which violation would have a material
adverse effect on the environment or the business, assets or financial condition
of the Borrowers on a consolidated basis.

    (b)  Except as set forth on SCHEDULE 4.18 attached hereto, neither the
Borrowers nor their 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 (1986); (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 ("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 any Borrower or any of their 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,

<PAGE>

                                     -27-

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)  Except as set forth on SCHEDULE 4.18 attached hereto:  (i) no portion
of any Borrower's or any of their Subsidiaries' properties has been used for the
handling, processing, storage or disposal of Hazardous Substances except in
accordance with applicable Environmental Laws; 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 any of the
Borrowers, their Subsidiaries or operators of their properties, no Hazardous
Substances have been generated or are being used on such properties except in
accordance with applicable Environmental Laws; (iii) there have been no
unpermitted releases (i.e. any past or present releasing, spilling, leaking,
pumping, pouring, emitting, emptying, discharging, injecting, escaping,
disposing or dumping) or threatened releases of Hazardous Substances on, upon,
into or from the properties of any of the Borrowers or any of their
Subsidiaries, which releases would have a material adverse effect on the value
of such properties or adjacent properties or the environment; (iv) to the best
of the Borrowers' knowledge, there have been no releases on, upon, from or into
any real property in the vicinity of the real properties of any of the Borrowers
or any of their Subsidiaries which, through soil or groundwater contamination,
may have come to be located on, and which would have a material adverse effect
on the value of, any properties of any of the Borrowers or any of their
Subsidiaries; and (v) in addition, any Hazardous Substances that have been
generated on the properties of the Borrowers or any of their 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 Borrowers'
knowledge, operating in compliance with such permits and applicable
Environmental Laws.

    (d)  Except as set forth on SCHEDULE 4.18 attached hereto, none of the
properties of the Borrowers or any of their Subsidiaries are 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.

    (e)  The Borrowers further represent that they have provided the Agent with
true and complete copies of all documents, reports, site assessments, data,
communication and other materials in any of their possession or to which they
have access, which contain information with respect to potential environmental
liabilities of the Borrowers or their Subsidiaries related to compliance with
Environmental Laws.

<PAGE>

                                     -28-

    Section 5.     AFFIRMATIVE COVENANTS OF THE BORROWERS.  The Borrowers
jointly and severally covenant and agree that, so long as any Loan or Note is
outstanding or the Banks have any obligation to make Loans or the Agent has any
obligation to issue Letters of Credit hereunder:

    Section 5.1.  RECORDS AND ACCOUNTS.  Each of the Borrowers will keep, 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 Generally Accepted Accounting Principles 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 and the properties of its Subsidiaries, all other
contingencies, and all other proper reserves.

    Section 5.2.  FINANCIAL STATEMENTS, CERTIFICATES AND INFORMATION.  The
Borrowers 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 Borrowers, the consolidated balance sheet of
the Borrowers as at the end of such year, statements of cash flows, and the
related consolidated statement of operations, each setting forth in comparative
form the figures for the previous fiscal year, all such consolidated statements
to be in reasonable detail, prepared in accordance with Generally Accepted
Accounting Principles, and certified without qualification by Price
Waterhouse LLP or by other independent nationally recognized certified public
accountants, together 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; provided, that such
accountants shall not be liable to the Banks for failure to obtain knowledge of
any Default or Event of Default;

    (b)  as soon as practicable, but in any event not later than 45 days after
the end of each fiscal quarter of each fiscal year of the Borrowers, copies of
the unaudited consolidated and consolidating balance sheet and statement of
operations of the Borrowers as at the end of such quarter, subject to year end
audit adjustments, and consolidated statement of cash flows, all in reasonable
detail and prepared in accordance with Generally Accepted Accounting Principles,
together with a certification by the principal financial or accounting officer
of the Borrowers that such financial statements have been prepared in accordance
with Generally Accepted Accounting Principles and fairly present the financial
condition of the Borrowers as at the close of business on the date thereof and
the results of operations for the period then ended;

<PAGE>

                                     -29-

    (c)  simultaneously with the delivery of the financial statements referred
to in (a) and (b) above, a statement certified by the principal financial or
accounting officer of the Borrowers that the Borrowers are in compliance with
the covenants contained in Sections 5 and 6 hereof as of the end of the
applicable period and setting forth in reasonable detail computations evidencing
such compliance;

    (d)  when requested by the Agent, within 20 days after the end of each
calendar month, copies of the unaudited consolidated balance sheet and income
statements of the Borrowers as at the end of such calendar month, and statement
of cash flows;

    (e)  within 20 days after the end of each calendar month, an accounts
receivable aging summary and a statement certified by the principal financial or
accounting officer of the Borrowers that the Borrowers are in compliance with
Section 6.7 as of the end of such month and setting forth in reasonable detail
computations evidencing such compliance;

    (f)  no later than July 31st of each fiscal year of the Borrowers, the
annual budgets of the Borrowers (including the projected consolidated and
consolidating balance sheets for the end of such fiscal year);

    (g)  contemporaneously with the filing or mailing thereof, copies of all
material of a financial nature filed with the Securities and Exchange Commission
or sent to the stockholders of the Borrowers; and

    (h)  from time to time such other financial data and information (including
accountants' management letters) as the Agent may reasonably request.

    The Borrowers hereby authorize the Banks to disclose any information
obtained pursuant to this Agreement to all appropriate governmental regulatory
authorities where required by law; PROVIDED, HOWEVER, that the Banks shall, to
the extent allowable under law, notify the Borrowers at the time any such
disclosure is made; and PROVIDED FURTHER, 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 or other applicable laws, as in effect from time
to time.

    Section 5.3.  CORPORATE EXISTENCE AND CONDUCT OF BUSINESS.  Each Borrower
and its Subsidiaries will 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; effect and maintain its foreign qualifications,
licensing, domestication or authorization except as terminated by its Board of
Directors in the exercise of its reasonable judgment; use its best efforts to
comply with all applicable laws; and shall not become obligated under any
contract or binding arrangement which, at the time it was entered into would
materially adversely impair the financial condition of the Borrowers,

<PAGE>

                                     -30-

on a consolidated basis.  Each Borrower will, and will cause each of its 
Subsidiaries to, continue to engage primarily in the businesses now conducted 
by them and in related businesses.

    Section 5.4.  MAINTENANCE OF PROPERTIES.  Each Borrower will cause all of
its properties and those of its Subsidiaries used or useful in the conduct of
its business or the business of its Subsidiaries to be maintained and kept in
good condition, repair and working order 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
such Borrower may be necessary so that the business carried on in connection
therewith may be properly and advantageously conducted at all times; PROVIDED,
HOWEVER, that nothing in this section or in Section 5.3 above shall prevent any
Borrower from discontinuing the operation and maintenance of any of its
properties or those of its Subsidiaries if such discontinuance is, in the
judgment of such Borrower, desirable in the conduct of its or their business and
which do not in the aggregate materially adversely affect the business of the
Borrowers and their Subsidiaries on a consolidated basis.

    Section 5.5.  INSURANCE.  The Borrowers will maintain, and cause their
Subsidiaries to maintain, with financially sound and reputable insurance
companies, funds or underwriters insurance of the kinds, covering the risks and
in the relative proportionate amounts usually carried by reasonable and prudent
companies conducting businesses similar to that of the Borrowers, including, to
the extent it is commercially available, feasible, and reasonably priced
environmental impairment insurance.

    Section 5.6.  TAXES.  Each Borrower will and will cause each of 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 or assets of any Borrower on an individual basis or of the
Borrowers and their 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 such
Subsidiary shall have set aside on its books adequate reserves with respect
thereto; and PROVIDED, FURTHER, that such Borrower and such Subsidiary will pay
all such taxes, assessments, charges, levies or claims forthwith upon the
commencement of proceedings to foreclose any lien which may have attached as
security therefor.

<PAGE>

                                     -31-

    Section 5.7.  INSPECTION OF PROPERTIES, BOOKS, AND CONTRACTS.  The
Borrowers shall permit the Agent or any of its designated representatives, to
visit and inspect any of the properties of the Borrowers or any of their
Subsidiaries, to examine the books of account of the Borrowers and their
Subsidiaries and contracts under which any of the Borrowers performs services
(and to make copies thereof and extracts therefrom), and to discuss the affairs,
finances and accounts of the Borrowers and their Subsidiaries with, and to be
advised as to the same by, their officers, all at such reasonable times and
intervals as the Agent may reasonably request.

    Section 5.8.  COMPLIANCE WITH LAWS, CONTRACTS, LICENSES AND PERMITS.  Each
Borrower will and will cause each of its Subsidiaries to comply with (i) the
provisions of its charter documents and by-laws and all agreements and
instruments by which it or any of its properties may be bound; and (ii) all
applicable laws and regulations (including Environmental Laws), decrees, orders
and judgments ("Applicable Laws") except where noncompliance with such
Applicable Laws would not have a material adverse effect in the aggregate on the
financial condition, properties or business of any Borrower or any Subsidiary. 
If at any time while the Notes, Loans or Letters of Credit are outstanding or
the Banks or the Agent have any obligation to make Loans or the Agent has any
obligation to issue Letters of Credit hereunder, any authorization, consent,
approval, permit or license from any officer, agency or instrumentality of any
government shall become necessary or required in order that any Borrower may
fulfill any of its obligations hereunder, such Borrower will immediately take or
cause to be taken all reasonable steps within the power of such Borrower to
obtain such authorization, consent, approval, permit or license and furnish the
Agent with evidence thereof.

    Section 5.9.  PENSION PLANS.  Each Borrower and each Subsidiary shall:

    (a)  fund each pension plan as required by Section 412 of the Internal
Revenue Code of 1954, as amended (the "Code");

    (b)  furnish to the Agent a copy of any actuarial statement related to any
pension plan required to be submitted under Section 103(d) of ERISA, no later
than the date on which such statement is submitted to the Department of Labor or
the Internal Revenue Service;

    (c)  furnish to the Agent forthwith, a copy of (i) any notice of a pension
plan termination sent to the Pension Benefit Guaranty Corporation under Section
4041(a) of ERISA or (ii) any notice, report or demand sent or received by a
pension plan under Sections 4041, 4042, 4043, 4063, 4065, 4066 and 4068 of
ERISA; and

    (d)  furnish to the Agent a copy of any request for waiver from the funding
standards or extension of the amortization periods required by Section 412 of
the Code no later than the date on which the request is submitted to the
Department of Labor or the Internal Revenue Service, as the case may be.

<PAGE>

                                     -32-

    Section 5.10.  FURTHER ASSURANCES.  The Borrowers will cooperate with the
Banks and execute such further instruments and documents as the Agent or the
Banks shall reasonably request to carry out to the Banks' satisfaction the
transactions contemplated by this Agreement.

    Section 5.11.  NOTICE OF POTENTIAL CLAIMS OR LITIGATION.  Each of the
Borrowers shall deliver to the Banks, within 30 days of receipt thereof, written
notice of any pending action, claim, complaint, or any other notice of dispute
or potential litigation (including without limitation any alleged violation of
any Environmental Law), wherein the potential liability is unspecified or in
excess of $1,000,000, together with a copy of each such notice received by any
Borrower or its Subsidiary.

    Section 5.12.  NOTICES.  The Borrowers will promptly notify the Banks in
writing of (i) the change in status of any inactive Subsidiary listed on
SCHEDULE 3.7 hereto, or (ii) the occurrence of any Default or Event of Default. 
If any Person shall give any notice or take any other action in respect of a
claimed default (whether or not constituting an Event of Default) under this
Agreement or any other note, evidence of indebtedness, indenture or other
obligation as to which any Borrower or any of their Subsidiaries is a party or
obligor, whether as principal or surety, the Borrowers shall forthwith give
written notice thereof to the Banks, describing the notice of action and the
nature of the claimed default.

    Section 5.13. NEW BORROWERS.  Any newly-created Subsidiaries shall become
Borrowers hereunder by signing Notes, entering into an amendment to this
Agreement with the other parties hereto providing that such Subsidiary shall
become a Borrower hereunder, entering into an amendment to the Security
Agreement to become a party thereto, and providing such other documentation as
the Banks or the Agent may reasonably request including, without limitation,
documentation with respect to conditions noted in Section 7 hereof.  In such
event, the Agent is hereby authorized by the parties to amend Schedule 1 hereto
to include such Subsidiary as a Borrower hereunder.

    Section 6.     CERTAIN NEGATIVE COVENANTS OF THE BORROWERS.  The Borrowers
agree that, so long as the Notes are outstanding, the Banks or the Agent have
any obligation to make Loans or the Agent has any obligation to issue Letters of
Credit hereunder:

    Section 6.1.  RESTRICTIONS ON INDEBTEDNESS.  The Borrowers will not, and
will not permit any Subsidiary to, create, incur, assume, guarantee or be or
remain liable, contingently or otherwise, with respect to any Indebtedness other
than:

    (a)  Indebtedness to the Banks and the Agent arising under this Agreement
or the other Loan Documents;

<PAGE>

                                     -33-

    (b)  Existing Indebtedness as listed on SCHEDULE 6.1 hereto, on the terms
and conditions in effect as of the date hereof;

    (c)  Current liabilities of the Borrowers incurred in the ordinary course
of business not incurred through (i) the borrowing of money, or (ii) the
obtaining of credit except for credit on an open account basis customarily
extended and in fact extended in connection with normal purchases of goods and
services;

    (d)  Indebtedness in respect of taxes, assessments, governmental charges or
levies and claims for labor, materials and supplies to the extent that payment
therefor shall not at the time be required to be made in accordance with the
provisions of Section 5.6 and Indebtedness secured by liens of carriers,
warehousemen, mechanics and materialmen permitted by Section 6.2;

    (e)  Indebtedness 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 such 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 Borrowers have maintained adequate
reserves;  and Indebtedness in respect of a final judgment against any Borrower
which is undischarged, unsatisfied and unstayed and which, with other
outstanding final judgments, undischarged against the Borrowers does not exceed
$1,000,000 in aggregate amount;

    (f)  Other Indebtedness, not to exceed $5,000,000 in the aggregate,
incurred after the date hereof (including existing Indebtedness of any
Subsidiaries of the Borrowers acquired after the date hereof), through the
borrowing of money or the obtaining of credit, incurred in connection with the
lease or acquisition of property or fixed assets useful or intended to be used
in carrying on the business of the Borrowers and their Subsidiaries, PROVIDED
THAT all such Indebtedness in excess of $1,000,000 ("Additional Indebtedness")
shall have a final maturity date after the Maturity Date, and PROVIDED FURTHER
that to the extent that scheduled principal payments of such Additional
Indebtedness are payable after the Maturity Date, the Total Commitment Amount,
as applicable, shall be reduced by the amount of such payments.

    Section 6.2.  RESTRICTIONS ON LIENS.  No Borrower will, nor will any
Borrower permit any Subsidiary 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 of its property or
assets of any character (other than upon any margin stock, as defined in
Regulation U of the Board of Governors of the Federal Reserve System, owned by
any Borrower or any Subsidiary), 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

<PAGE>

                                     -34-

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:

    (a)  To the extent permitted under Section 6.1(f) hereof, Liens securing
the Indebtedness incurred in connection with the acquisition of property or
assets useful or intended to be used in carrying on the business of the
Borrowers or the acquiring Subsidiary, PROVIDED THAT such Liens shall encumber
only the property or assets so acquired and do not exceed the fair market value
thereof; and

    (b)  Liens to secure taxes, assessments and other government charges or
claims for labor, material or supplies in respect of obligations not overdue;

    (c)  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;

    (d)  Liens in respect of judgments or awards, the Indebtedness with respect
to which is permitted by Section 6.1(e);

    (e)  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; and

    (f)  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 any Borrower or any Subsidiary is a party, and other minor liens or
encumbrances none of which in the opinion of the respective Borrower or
Borrowers interferes materially with the use of the property affected in the
ordinary conduct of the business of such Borrower and its Subsidiaries, which
defects do not individually or in the aggregate have a material adverse effect
on the business of such Borrower individually or of the Borrowers and their
Subsidiaries on a consolidated basis.

    Section 6.3.  RESTRICTIONS ON INVESTMENTS.  No Borrower will, nor will any
Borrower permit any Subsidiary to, make or permit to exist or to remain
outstanding any Investment except the following:

<PAGE>

                                     -35-

    (a)  Marketable direct or guaranteed obligations of the United States of
America which mature within one year from the date of purchase by the Borrowers;

    (b)  Demand deposits, certificates of deposit, bankers' acceptances, time
deposits and variable rate demand obligations of United States banks having
total assets in excess of $1,000,000,000 United States Dollars;

    (c)  Securities commonly known as "commercial paper" issued by a
corporation organized and existing under the laws of the United States of
America or any state thereof which at the time of purchase have been rated and
the ratings for which are less than "P-1" if rated by Moody's Investors
Services, Inc. and less than "A-1" if rated by Standard and Poor's Ratings
Group, PROVIDED THAT such investments shall not exceed $2,000,000;

    (d)  Debt securities of U.S. corporations or U.S. governmental entities
under which full payment of principal and interest is assured by a letter of
credit issued by United States banks having total assets in excess of
$1,000,000,000 United States Dollars and which at the time of purchase are rated
and the ratings for which are not less than "P-1" if rated by Moody's Investors
Services, Inc. and not less than "A-1" if rated by Standard and Poor's Ratings
Group;

    (e)  (i)  Securities commonly known as "municipal securities" issued by a
municipality organized and existing under the laws of any state of the United
States of America which at the time of purchase have been rated and the ratings
for which are not less than "P-1" if rated by Moody's Investors Services, Inc.,
and not less than "A-1" if rated by Standard and Poor's Ratings Group, and (ii) 
securities known as the John Nuveen & Co. MuniPreferred series of tax-exempt
mutual funds, all of which funds have a triple-A rating by Standard and Poor's
Ratings Group and Moody's Investor Services, Inc.;

    (f)  Trade payables, accrued payroll and vacation, and taxes payable, all
accrued in the ordinary course of business;

    (g)  Present and future Investments by the Borrowers in any Person which is
a Borrower listed on SCHEDULE 1 hereto; 

    (h)  Other Investments in addition to the existing Investments listed on
SCHEDULE 6.3(i) hereto, PROVIDED that such other Investments shall not exceed
$5,000,000 (such amount determined on the basis of cost) at any one time
outstanding; 

    (i)  Existing Investments listed on SCHEDULE 6.3(i) hereto;

    (j)  Short term money market investments in money market loans or portions
of such loans sold by the Agent; and

<PAGE>

                                     -36-

    (k)  Investments in acquisitions permitted by Section 6.4.

    Section 6.4.  MERGER, CONSOLIDATION, AND ACQUISITIONS.  No Borrower will
become a party to any merger, consolidation, or acquisition except (a) for the
merger or consolidation of a Borrower with another Borrower or (b) where (i)
such Borrower is the surviving corporation of a merger; (ii) such merger,
consolidation, or acquisition is of a company in the environmental consulting,
engineering or related field; (iii) the Banks have been provided with a
certificate demonstrating that the Borrowers are in current compliance with and,
giving effect to the proposed acquisition (including any borrowings made or to
be made in connection therewith), will continue to be in compliance with, all of
the covenants in this Section 6; (iv) all of the assets to be acquired shall be
owned by an existing or newly created Subsidiary of TRC which is a Borrower or,
in the case of a stock acquisition, the acquired company shall become or shall
be merged with a wholly-owned Subsidiary of TRC that is a Borrower; and (v) the
required majority of the Board of Directors of the target company incumbent at
the time such acquisition is proposed has acquiesced either voluntarily or by
order of a court of competent jurisdiction, or the transaction is otherwise
deemed in the reasonable judgment of the Banks to be a "friendly" acquisition,
and PROVIDED THAT both immediately before and after such merger, consolidation
or acquisition no Defaults or Events of Default shall have occurred or be
continuing. 

    Section 6.5.  SALE AND LEASEBACK.  None of the Borrowers will enter into
any arrangement, directly or indirectly, whereby any Borrower or any Subsidiary
shall sell or transfer any property owned by it in order then or thereafter to
lease such property or lease other property which any Borrower or any Subsidiary
intends to use for substantially the same purpose as the property being sold or
transferred.

    Section 6.6.  SALES OF ASSETS.  None of the Borrowers will, and no Borrower
will permit any Subsidiary to, sell or otherwise dispose of any of their
respective assets consisting of securities (other than any margin stock, as
defined in Regulation U of the Board of Governors of the Federal Reserve System,
held by any Borrower or any Subsidiary), real property or personal property,
including without limitation all or any part of any of any Borrower's operating
divisions (excluding sales of assets in the ordinary course of the business),
without the prior written approval of the Banks, with the following exceptions: 
(i) any Borrower may sell obsolete or worn-out property not used or useful in
its business, and (ii) subject to Section 2.12(b) hereof MIE may be sold at the
Borrowers' discretion, PROVIDED that, in such event, MIE's rights under this
Agreement and the Notes shall terminate.  In connection with any sale of MIE
permitted hereunder, the Agent shall release its lien on the assets of MIE
constituting Collateral and shall, at the Borrowers' sole cost and expense,
deliver to the Borrowers such UCC-3 releases or other release documents as the
Borrowers may reasonably request to effect such release.

<PAGE>

                                     -37-

    Section 6.7.  COLLATERAL VALUE RATIO.  The Borrowers will not, at the end
of any month, permit the sum of (i) outstanding Loans plus (ii) the Maximum
Drawing Amount under all Letters of Credit, plus (iii) Unpaid Reimbursement
Obligations to be greater than seventy percent (70%) of Eligible Receivables for
which invoices have been issued and are payable (the "Collateral Value Ratio").

    Section 6.8.  INTEREST COVERAGE.  The Borrowers will not permit the ratio
of Consolidated EBITDA MINUS capital expenditures to Consolidated Total Interest
Expense to be less than 3.5:1 for any fiscal quarter.

    Section 6.9.  SUBORDINATED DEBT.  The Borrowers will not (a) amend,
supplement or otherwise modify the terms of any of the Subordinated Debt, (b)
make any payment of principal or other amounts owing with respect thereto (other
than as permitted under the Intercreditor Agreement), or (c) prepay any of the
Subordinated Debt.

    Section 7.     CONDITIONS OF FIRST LOANS.

    The obligation of the Banks to make the first Loan hereunder (including,
without limitation, the obligation of the Banks to convert loans under the Prior
Credit Agreement to Loans hereunder and the obligation of the Agent to issue
Letters of Credit) and otherwise be bound by the terms of this Agreement shall
be subject to the satisfaction of each of the following conditions precedent
(the date such conditions precedent are satisfied being the "Amendment Date"):

    Section 7.1.  REPRESENTATIONS AND WARRANTIES.  The representations and
warranties contained in Section 4 hereof and otherwise made by the Borrowers in
writing in connection with the transactions contemplated by this Agreement shall
have been correct as of the date on which made and shall also be correct at and
as of the date of the first Loan with the same effect as if made at and as of
such time, except to the extent that the facts upon which such representations
and warranties are based may in the ordinary course be changed by the
transactions permitted or contemplated hereby.

    Section 7.2.  PERFORMANCE; NO DEFAULT.  The Borrowers 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 first Loan, and at the time
of the first Loan, as certified by the chief financial officer of TRC, there
shall exist no Default or Event of Default or condition which would, with either
or both the giving of notice or the lapse of time, result in a Default or Event
of Default upon consummation of the first Loans.

    Section 7.3.  NO ADVERSE CHANGE.  As of the date of the first Loan, no
material adverse change since the Balance Sheet Date shall have occurred since
the date hereof in the business or financial condition of the Borrowers in the
aggregate.

<PAGE>

                                     -38-

    Section 7.4.  CORPORATE ACTION; CORPORATE DOCUMENTS.  All corporate action
necessary for the valid execution, delivery and performance by each Borrower of
the Loan Documents shall have been duly and effectively taken, and evidence
thereof satisfactory to the Agent shall have been provided to the Agent.  The
Borrowers shall have certified to the Agent that the charter and by-laws of each
Borrower delivered to the Agent in connection with the Prior Credit Agreement
have not been amended, modified or supplemented and are in full force and effect
or shall have provided the Agent certified copies of any amendments,
modifications or supplements thereto.  Each Borrower shall have delivered to the
Agent a certificate of the Secretary of State of the state of incorporation of
such Borrower certifying as to such Borrower's legal existence and good
standing.

    Section 7.5.  LOAN DOCUMENTS.  Each of the Loan Documents shall have been
duly and properly authorized, executed and delivered by the respective party or
parties thereto and shall be in full force and effect on and as of the Amendment
Date and executed original counterparts of each of the Loan Documents shall have
been furnished to the Agent.

    Section 7.6.  UCC SEARCHES; PERFECTION OF LIENS.  The Agent shall have
received the results of UCC searches with respect to the Collateral, indicating
no Liens other than Liens permitted under Section 6.2 and otherwise in form and
substance satisfactory to the Agent.  The Security Documents shall be effective
to create in favor of the Agent a legal, valid and enforceable first (except for
Liens permitted under Section 6.2 entitled to priority under applicable law)
security interest in and lien upon the Collateral.  All filings, recordings,
deliveries of instruments necessary or desirable in the opinion of the Agent to
protect and preserve such security interests shall have been duly effected.  The
Agent shall have received evidence thereof in form and substance satisfactory to
the Agent.

    Section 7.7.  OPINION OF BORROWER'S COUNSEL.  The Bank shall have received
from Borrowers' counsel a favorable opinion addressed to the Agent, dated the
Amendment Date.

    Section 7.8.  NO LEGAL IMPEDIMENT.  No change shall have occurred in any
law or regulations thereunder or interpretations thereof which in the reasonable
opinion of the Agent would make it illegal for the Agent to make Loans
hereunder.

    Section 7.9.  GOVERNMENTAL REGULATION.  The Agent shall have received such
statements in substance and form reasonably satisfactory to the Agent as it
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 7.10.  ACCOUNTANT'S REPORT.  The Borrowers shall have delivered to
the Banks a copy of the Price Waterhouse LLP management letter for the 1997
fiscal year and the Banks shall have discussed with Price Waterhouse

<PAGE>

                                     -39-

LLP, and be satisfied with, the Borrowers' systems and controls and the 
adequacy of the Borrowers' accounts receivable reserve.

    Section 7.11.  PAYMENT OF FEES.  The Borrowers shall have paid to the Agent
the Amendment Fee and shall have paid the Agent's out-of-pocket expenses,
including, without limitation, the legal fees and disbursements of the Agent's
counsel, Bingham Dana LLP, incurred under the Prior Credit Agreement and in
connection with this Agreement.

    Section 7.12.  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 hereof in
substance and in form satisfactory to the Banks, and the Banks shall have
received all information and such counterpart originals or certified or other
copies of such documents as the Banks may reasonably request.

    Section 8.  CONDITIONS OF SUBSEQUENT LOANS.

    The obligation of the Banks to make any Loan (including without limitation
the obligation of the Agent to issue any Letter of Credit) subsequent to the
first Loan is subject to the following conditions precedent:

    Section 8.1.  REPRESENTATIONS TRUE; NO EVENT OF DEFAULT. Each of the
representations and warranties of the Borrowers 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 the Loan 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, and to the extent that such representations and warranties
relate expressly to an earlier date) and no Default or Event of Default shall
have occurred and be continuing.

    Section 8.2.  PERFORMANCE; NO EVENT OF DEFAULT.  The Borrowers 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 Loan, and at
the time of the Loan, there shall exist no Event of Default or condition which
would result in an Event of Default upon consummation of the Loan (including
without limitation any amounts to be drawn under a Letter of Credit).

Each request by any Borrower for a Loan (including without limitation each
request for issuance of a Letter of Credit) subsequent to the first Loan shall
constitute certification by such Borrower that the conditions specified in
Sections 8.1 and 8.2 will be duly satisfied on the date of such Loan or Letter
of Credit issuance.

<PAGE>

                                     -40-

    Section 9.     EVENTS OF DEFAULT; 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 Borrowers 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 Borrowers shall fail to pay any interest, letter of credit fees
or commitment fees on the Loans within five (5) Business Days after 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;

    (c)  if the Borrowers shall fail to comply with their covenants contained
in Section 5 (excepting Sections 5.2, 5.4, and 5.9,) or Section 6 hereof;

    (d)  if the Borrowers shall fail to perform any term, covenant or agreement
herein contained (other than those specified in subsections (a), (b), and (c)
above) within 45 business days after written notice of such failure has been
given to such Borrower by the Agent;

    (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;

    (f)  if any Borrower or any Subsidiary shall fail to pay at maturity, or
within any applicable period of grace, any and all obligations for borrowed
money in an aggregate amount greater than $1,000,000 (excluding, however, any
agreement relating to any pledge of, or restriction on the pledge or disposition
of, margin stock, as defined in Regulation U of the Board of Governors of the
Federal Reserve System, owned by any Borrower), or fail to observe or perform
any material term, covenant or agreement contained in any agreement by which it
is bound, evidencing or securing borrowed money in an aggregate amount greater
than $1,000,000 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

    (g)  if any Borrower 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 (excluding, however, any agreement relating to any
pledge of, or restriction on the pledge or disposition of, margin stock, as
defined in Regulation U of the Board of Governors of the Federal Reserve System,
owned by any Borrower), or petitions or applies for

<PAGE>

                                     -41-

the appointment of a trustee or other custodian, liquidator or receiver of any 
of the Borrowers or of any substantial part of the assets of any of the 
Borrowers or their Subsidiaries or commences any case or other proceeding 
relating to any of the Borrowers or their Subsidiaries 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 any of the Borrowers or their Subsidiaries and any of the 
Borrowers or their Subsidiaries 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 any of the Borrowers or their
Subsidiaries 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 any
Borrower or any 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; or

    (i)  if there shall remain in force, undischarged, unsatisfied and
unstayed, for more than thirty days, whether or not consecutive, any final
judgment against any Borrower or any Subsidiary which, with other outstanding
final judgments, undischarged, against the Borrowers exceeds in the aggregate
$1,000,000 after taking into account any insurance coverage;

then, the Agent may, and at the request of the Majority Banks shall, by notice
in writing to the Borrowers declare all amounts owing with respect to this
Agreement and the Notes to be, and they shall thereupon forthwith mature and
become, immediately due and payable without presentment, demand, protest or
other notice of any kind, all of which are hereby expressly waived by the
Borrowers; PROVIDED, that in the event of any Event of Default specified in
Sections 9(g) or 9(h) hereof, all such amounts shall become immediately due and
payable automatically and without any requirement of notice from the Agent. 
Upon demand by the Agent after the occurrence of any Event of Default, the
Borrowers shall immediately provide to the Agent cash in an amount equal to the
aggregate Maximum Drawing Amount of all Letters of Credit outstanding, to be
held by the Agent as collateral security for the Obligations.  In case any one
or more of the Events of Default shall have occurred and be continuing, and
whether or not the Agent shall have accelerated the maturity of the Loans
pursuant to the foregoing, any Bank, if owed any amount with respect to the
Loans may proceed to protect and enforce its rights by suit in equity, action at
law and/or other appropriate proceeding, whether for the specific performance of
any covenant or agreement contained in this Agreement or any instrument pursuant
to which the obligations of the Borrowers to such Bank hereunder are evidenced,
including as permitted by applicable law the obtaining of the EX

<PAGE>

                                     -42-

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 other 
legal or equitable right of such Bank.  No remedy herein conferred upon the 
Agent or Banks or the holders of the Notes is intended to be exclusive of any 
other remedy and each and every remedy shall be cumulative and shall be in 
addition to every other remedy given hereunder or now or hereafter existing at 
law or in equity or by statute or any other provision of law.

    Section 10.  DISTRIBUTION OF COLLATERAL PROCEEDS.  In the event that,
following the occurrence or during the continuance of any Default or Event of
Default, the Agent or any Bank, as the case may be, receives any monies in
connection with the enforcement of any the Security Documents, or otherwise with
respect to the realization upon any of the Collateral, such monies shall be
distributed for application as follows:
    
         (a)  First, to the payment of, or (as the case may be) the
    reimbursement of the Agent for or in respect of all reasonable costs,
    expenses, disbursements and losses which shall have been incurred or
    sustained by the Agent in connection with the collection of such monies by
    the Agent, for the exercise, protection or enforcement by the Agent of all
    or any of the rights, remedies, powers and privileges of the Agent under
    this Agreement or any of the other Loan Documents or in respect of the
    Collateral or in support of any provision of adequate indemnity to the
    Agent against any taxes or liens which by law shall have, or may have,
    priority over the rights of the Agent to such monies;
    
         (b)  Second, to all other Obligations in such order or preference as
    the Majority Banks may determine; PROVIDED, HOWEVER, that (i) distributions
    shall be made with respect to each type of Obligation owing to the Banks,
    such as interest, principal, fees and expenses, among the Banks PRO RATA,
    and (ii) the Agent may in its discretion make proper allowance to take into
    account any Obligations not then due and payable;
    
         (c)  Third, upon payment and satisfaction in full or other provisions
    for payment in full satisfactory to the Banks and the Agent of all of the
    Obligations, to the payment of any obligations required to be paid pursuant
    to Section 9-504(1)(c) of the Uniform Commercial Code of the Commonwealth
    of Massachusetts; and
    
         (d)  Fourth, the excess, if any, shall be returned to the Borrowers or
    to such other Persons as are entitled thereto.

    Section 11.  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 Borrowers and any securities or other property of
the Borrowers in the possession of any Bank may be applied to

<PAGE>

                                     -43-

or set off against the payment of obligations of the Borrowers hereunder and 
under the Note and any and all other liabilities, direct, or indirect, 
absolute or contingent, due or to become due, now existing or hereafter 
arising, of the Borrowers to the Banks. Each of the Banks agrees with each 
other Bank that (i) if an amount to be set off is to be applied to 
Indebtedness of the Borrowers to such Bank, other than Indebtedness evidenced 
by the Notes held by such Bank or constituting Reimbursement Obligations owed 
to such Bank, such amount shall be applied ratably to such other Indebtedness 
and to the Indebtedness evidenced by all such Notes held by such Bank or 
constituting Reimbursement Obligations owed to such Bank, and (ii) if such 
Bank shall receive from any of the Borrowers, whether by voluntary payment, 
exercise of the right of setoff, counterclaim, cross action, enforcement of 
the claim evidenced by the Notes held by, or constituting Reimbursement 
Obligations owed to, such Bank by proceedings against such Borrower at law or 
in equity or by proof thereof in bankruptcy, reorganization, liquidation, 
receivership or similar proceedings, or otherwise, and shall retain and apply 
to the payment of the Note or Notes held by, or Reimbursement Obligations owed 
to, such Bank any amount in excess of its ratable portion of the payments 
received by all of the Banks with respect to the Notes held by, and 
Reimbursement Obligations owed to, all of the Banks, such Bank will make such 
disposition and arrangements with the other Banks with respect to such excess, 
either by way of distribution, PRO TANTO assignment of claims, subrogation or 
otherwise as shall result in each Bank receiving in respect of the Notes held 
by it or Reimbursement Obligations owed it, its proportionate payment as 
contemplated by this Agreement; PROVIDED that if all or any part of such 
excess payment is thereafter recovered from such Bank, such disposition and 
arrangements shall be rescinded and the amount restored to the extent of such 
recovery, but without interest.

    Section 12.  EXPENSES.  Whether or not the transactions contemplated herein
shall be consummated, the Borrowers hereby promise to reimburse the Agent for
all reasonable out-of-pocket attorneys' fees and disbursements, incurred or
expended in connection with the preparation, syndication or interpretation of
this Agreement, the Notes, the Letter of Credit Agreements, or any amendment
hereof or thereof, or with the enforcement of any Obligations or the
satisfaction of any indebtedness of the Borrowers hereunder or thereunder, or in
connection with any litigation, proceeding or dispute hereunder in any way
related to the credit hereunder, including without limitation the so-called
"work-out" thereof after the occurrence of a Default or Event of Default.  The
Borrowers will pay any taxes (including any interest and penalties in respect
thereof), other than the Banks' federal and state income taxes, payable on or
with respect to the transactions contemplated by this Agreement (the Borrowers
hereby agreeing to indemnify the Banks with respect thereto).  The Borrowers
further promise to reimburse the Agent and the Banks for all such fees and
disbursements incurred or expended in connection with the enforcement of any
Obligations or the satisfaction of any indebtedness of the Borrowers

<PAGE>

                                     -44-

hereunder or thereunder, or in connection with any litigation, proceeding or 
dispute in any way related to the credit hereunder.

<PAGE>

                                     -45-

     Section 13.  THE AGENT.

    Section 13.1.  APPOINTMENT OF AGENT, POWERS AND IMMUNITIES.  Each Bank
hereby irrevocably appoints and authorizes the Agent to act as its agent
hereunder and under the other Loan Documents.  Each Bank irrevocably authorizes
the Agent to execute all other instruments relating thereto and to take such
action on behalf of each of the Banks and to exercise all such powers as are
expressly delegated to the Agent hereunder and in all related documents,
together with such other powers as are reasonably incidental thereto.  It is
agreed that the duties, rights, privileges and immunities of the Agent, in its
capacity as issuer of Letters of Credit hereunder, shall be identical to its
duties, rights, privileges and immunities as Agent as provided in this Section
13.  The Agent shall not have any duties or responsibilities or any fiduciary
relationship with any Bank except those expressly set forth in this Agreement. 
Neither the Agent nor any of its affiliates shall be responsible to the Banks
for any recitals, statements, representations or warranties made by the
Borrowers or any other Person whether contained herein or otherwise or for the
value, validity, effectiveness, genuineness, enforceability or sufficiency of
this Agreement, the other Loan Documents or any other document referred to or
provided for herein or therein or for any failure by the Borrowers any other
Person to perform its obligations hereunder or thereunder or in respect of the
Notes.  The Agent may employ agents and attorneys-in-fact and shall not be
responsible for the negligence or misconduct of any such agents or
attorneys-in-fact selected by it with reasonable care. Neither the Agent nor any
of its 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. 
The Agent in its separate capacity as a Bank shall have the same rights and
powers hereunder as any other Bank.

    Section 13.2.  ACTIONS BY AGENT.  The Agent shall be fully justified in
failing or refusing to take any action under this Agreement as it reasonably
deems appropriate unless it shall first have received such advice or concurrence
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 Agent shall in all
cases be fully protected in acting, or in refraining from acting, under this
Agreement or any of the Loan Documents in accordance with a request of the
Banks, and such request 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 13.3.  INDEMNIFICATION.  Without limiting the obligations of the
Borrowers hereunder or under any other Loan Document, the Banks agree to
indemnify the Agent, ratably in accordance with their respective Commitment
Percentages, for any and all liabilities, obligations, losses, damages,
penalties, actions, judgments, suits, costs, expenses or disbursements or any
kind or nature whatsoever which may at any time be

<PAGE>

                                     -46-

imposed on, incurred by or asserted against the Agent in any way relating to 
or arising out of this Agreement or any other Loan Document or any documents 
contemplated by or referred to herein or therein or the transactions 
contemplated hereby or thereby or the enforcement of any of the terms hereof 
or thereof or of any such other documents; PROVIDED, THAT no Bank shall be 
liable for any of the foregoing to the extent they arise from the gross 
negligence or willful misconduct of the Agent (or any agent thereof).

     Section 13.4.  REIMBURSEMENT.  Without limiting the provisions of Section
13.3, the Banks and the Agent hereby agree that the Agent shall not be obliged
to make available to any Person any sum which the Agent is expecting to receive
for the account of that Person until the Agent has determined that it has
received that sum.  The Agent may, however, disburse funds prior to determining
that the sums which the Agent expects to receive have been finally and
unconditionally paid to the Agent, if the Agent wishes to do so.  If and to the
extent that the Agent does disburse funds and it later becomes apparent that the
Agent did not then receive a payment in an amount equal to the sum paid out,
then any Person to whom the Agent made the funds available shall, on demand from
the Agent, refund to the Agent the sum paid to that Person.  If, in the opinion
of the 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 the Agent
is to be repaid, each Person to whom any such distribution shall have been made
shall either repay to the 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 13.5.  DOCUMENTS.  The Agent will forward to each Bank, promptly
after the Agent's receipt thereof, a copy of each notice or other document
furnished to the Agent for such Bank hereunder; PROVIDED, HOWEVER, that,
notwithstanding the foregoing, the 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 13.6.  NON-RELIANCE ON AGENT AND OTHER BANKS.  Each Bank represents
that it has, independently and without reliance on the Agent 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 Borrowers and
the decision to enter into this Agreement and the other Loan Documents and
agrees that it will, independently and without reliance upon the Agent or any
other Bank, and based on such documents and information as it shall deem
appropriate at the time, continue to make its own appraisals and decisions in
taking or not taking action under this Agreement or any other Loan Document. 
The Agent shall not be required to keep informed as to the performance or
observance by

<PAGE>

                                     -47-

the Borrowers 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
Agent hereunder, the Agent shall not have any duty or responsibility to provide
any Bank with any credit or other information concerning any person which may
come into the possession of the Agent or any of its affiliates.  Each Bank shall
have access to all documents relating to the Agent's performance of its duties
hereunder at such Bank's request. Unless any Bank shall promptly object to any
action taken by the Agent hereunder (other than actions to which the provisions
of Section 13.8 are applicable and other than actions which constitute gross
negligence or willful misconduct by the Agent), such Bank shall conclusively be
presumed to have approved the same.

    Section 13.7.  RESIGNATION OF AGENT.  The Agent may resign at any time by
giving 60 days prior written notice thereof to the Banks and the Borrowers. 
Upon any such resignation, the Banks shall have the right to appoint a successor
Agent.  If no successor Agent shall have been so appointed by the Banks and
shall have accepted such appointment within 30 days after the retiring Agent's
giving of notice of resignation, then the retiring Agent may, on behalf of the
Banks, appoint a successor Agent, which shall be a financial institution having
a combined capital and surplus in excess of $150,000,000.  Upon the acceptance
of any appointment as Agent hereunder by a successor Agent, such successor Agent
shall thereupon succeed to and become vested with all the rights, powers,
privileges and duties of the retiring Agent, and the retiring Agent shall be
discharged from its duties and obligations hereunder.  After any retiring
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 Agent appointed pursuant to this Section
13.7 shall immediately issue new Letters of Credit in place of Letters of Credit
previously issued by the Agent.

    Section 13.8.  ACTION BY THE BANKS, CONSENTS, AMENDMENTS, WAIVERS, ETC. 
Except as otherwise expressly provided in this Section 13.8, any action to be
taken (including the giving of notice) may be taken or any consent or approval
required or permitted by the Agreement or any other Loan Document to be given by
the Banks may be given, and 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 Borrowers or any other person of any of the terms thereof and
any Default or Event of Default (as defined in any of the above-referenced
documents or instruments) may be waived (either generally or in a particular
instance and either retroactively or prospectively) only with the written
consent of the Majority Banks; PROVIDED, HOWEVER, that no such consent or
amendment which affects the rights, duties or liabilities of the Agent shall be
effective without the written

<PAGE>

                                     -48-

consent of the 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 Total Commitment Amount (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 fees payable hereunder; (d) change the 
definition of "Majority Banks" or the 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 13.8; or (f) change the Commitment Percentage of any Bank, 
except as permitted under Section 16 hereof.

    Section 13.9  DUTIES IN THE CASE OF ENFORCEMENT.  In case one of more
Events of Default have occurred and shall be continuing, and whether or not
acceleration of the Obligations shall have occurred, the Agent shall, if (i) so
requested by the Majority Banks and (ii) the Banks have provided to the Agent
such additional indemnities and assurances against expenses and liabilities as
the Agent may reasonably request, proceed to enforce the provisions of the
Security Documents authorizing the sale or other disposition of all or any part
of the Collateral and exercise all or any such other legal and equitable and
other rights or remedies as it may have in respect of such Collateral.  The
Majority Banks may direct the Agent in writing as to the method and the extent
of any such sale or other disposition, the Banks hereby agreeing to indemnify
and hold the Agent, harmless from all liabilities incurred in respect of all
actions taken or omitted in accordance with such directions, PROVIDED that the
Agent need not comply with any such direction to the extent that the Agent
reasonably believes the Agent's compliance with such direction to be unlawful or
commercially unreasonable in any applicable jurisdiction.

    Section 14.  INDEMNIFICATION.  The Borrowers agree to indemnify and hold
harmless the Banks, as well as the Banks' shareholders, directors, agents,
officers, subsidiaries and affiliates, from and against all damages, losses,
settlement payments, obligations, liabilities, claims, actions or causes of
action, whether statutorily created or under the common law, and reasonable
costs and expenses incurred, suffered, sustained or required to be paid by an
indemnified party by reason of or resulting from the transactions contemplated
hereby and to the extent not caused by the gross negligence or willful
misconduct of the Banks.  In any investigation, proceeding or litigation, or the
preparation therefor, the Banks shall be entitled to select its own counsel and,
in addition to the foregoing indemnity, the Borrowers agree to pay promptly the
reasonable fees and expenses of such counsel.  In the event of the commencement
of any such proceeding or litigation, the Borrowers shall be entitled to
participate in such proceeding or litigation with counsel of their choice at
their expense, PROVIDED that such counsel shall be reasonably satisfactory to
the Banks.  The covenants of this Section 14 shall survive payment or
satisfaction of payment of amounts owing with respect to the Notes or any other
Loan Document.

<PAGE>

                                     -49-

    Section 15.  SURVIVAL OF COVENANTS, ETC.  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 Borrowers
pursuant hereto shall be deemed to have been relied upon by the Banks and the
Agent, notwithstanding any investigation heretofore or hereafter made by it, and
shall survive the making by the Banks of the Loans and the issuance by the Agent
of the Letters of Credit, as herein contemplated, and shall continue in full
force and effect so long as any amount due under this Agreement, any Letter of
Credit Agreement or the Notes remains outstanding and unpaid or any Bank or the
Agent has any obligation to make any Loans or issue any Letters of Credit
hereunder.  All statements contained in any certificate or other paper delivered
to the Banks or the Agent at any time by or on behalf of the Borrowers pursuant
hereto or in connection with the transactions contemplated hereby shall
constitute representations and warranties by the Borrowers hereunder.

    Section 16.  SYNDICATION AND PARTICIPATION.  It is understood and agreed
that each Bank shall have the right to syndicate or participate at any time the
Commitment and interests in the risk relating to any of the Obligations, to
additional banks or other financial institutions so long as BKB will be the
Agent thereunder, and so long as the Borrowers and the Agent have consented to
such assignment (such consent not to be unreasonably withheld), PROVIDED THAT
such Bank shall retain, free of any such assignment, an amount of its Commitment
of not less than $5,000,000, and PROVIDED FURTHER that any Bank may syndicate or
participate to an affiliate of such Bank without obtaining consent.  It is
further agreed that each bank or other financial institution which executes and
delivers to the Agent and the Borrowers hereunder a counterpart joinder in form
and substance satisfactory to the Agent and such bank or financial institution
(together with an assignment fee of $2,500 to the Agent) shall, on the date
specified in such counterpart joinder, become a party to this Agreement and the
other Loan Documents for all purposes of this Agreement and the other Loan
Documents, and its Commitment shall be as set forth in such counterpart joinder.
Upon the execution and delivery of such counterpart joinder, (a) the Borrowers
shall issue to the bank or other financial institution a Note in the amount of
such bank's or other financial institution's Commitment dated as of the date of
such assignment or such other date as may be specified by the Bank and otherwise
completed in substantially the form of EXHIBIT A; (b) Sections 2.1 and 2.2 shall
be deemed to be amended to reflect the Commitment and interest in the risk
related to the Obligations of such bank or other financial institution and the
Commitment of such Bank shall be reduced by a like amount; (c) the Agent shall
distribute to the Borrowers, 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 such bank or financial institution as a
party hereto and (ii) the status and rights of BKB as agent for itself and such
other bank or financial institution hereunder.

<PAGE>

                                     -50-

    Section 17.  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 no Borrower shall assign or transfer its rights
hereunder without the prior written consent of the Banks.

    Section 18.  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 telecopier and confirmed by letter, addressed as follows:

    (a)  if to the Borrowers, at 5 Waterside Crossing, Windsor, Connecticut
06095, Attention: Harold C. Elston, Jr., Vice President and Treasurer,
telecopy number 860-298-6399, or at such other address for notice as the
Borrowers, shall last have furnished in writing to the Person giving the notice;
or

    (b)  if to the Agent or BKB, at 100 Federal Street, Boston, Massachusetts
02110, USA, Attention: Arthur J. Oberheim, Vice-President, telecopy number
617-434-2160, or such other address for notice as the Agent shall last have
furnished in writing to the Person giving the notice; or

    (c)  if to the Banks, at BankBoston, N.A., 100 Federal Street, Boston,
Massachusetts 02110, USA, Attention: Arthur J. Oberheim, Vice-President,
telecopy number 617-434-2160, or such other address for notice as the Bank shall
last have furnished in writing to the Person giving the notice.

    Any such notice or demand shall be deemed to have been duly given or made
and to have become effective (a) if delivered by hand, overnight mail or
facsimile to a responsible officer of the party to which it is directed, at the
time of the receipt thereof by such officer or the sending of such facsimile or
(b) if sent by registered or certified first-class mail, postage prepaid, five
(5) Business Days after the posting thereof.

    Section 19.  MISCELLANEOUS.  The rights and remedies herein expressed are
cumulative and not exclusive of any other rights which the Banks or the Agent
would otherwise have.  The captions in this Agreement are for convenience of
reference only and shall not define or limit the provisions hereof.  This
Agreement and any amendment hereof may be executed in several counterparts and
by each party on a separate counterpart, each of which when so executed and
delivered shall be an original, but all of which together shall constitute one
instrument.  In proving this Agreement it shall not be necessary to produce or
account for more than one such counterpart signed by the party against whom
enforcement is sought.

<PAGE>

                                     -51-

    Section 20.  ENTIRE AGREEMENT, ETC.  This Agreement, together with the
other Loan Documents and any other documents executed in connection herewith or
therewith, express the entire understanding of the parties with respect to the
transactions contemplated hereby.  Neither this Agreement nor any term hereof
may be changed, waived, discharged or terminated orally or in writing, except as
provided in Section 22.

    Section 21.  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 BORROWERS CONSENT 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 UNDER THIS AGREEMENT OR ANY OF THE OTHER LOAN
DOCUMENTS.

    Section 22.    CONSENTS, AMENDMENTS, WAIVERS, ETC.  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 Borrowers 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 Borrowers and the written consent of the Banks.  No waiver shall extend
to or affect any obligation not expressly waived or impair any right consequent
thereon.  No course of dealing or delay or omission on the part of the Agent or
the Banks in exercising any right shall operate as a waiver thereof or otherwise
be prejudicial thereto.  No notice to or demand upon any Borrower shall entitle
such Borrower or any other Borrower to other or further notice or demand in
similar or other circumstances.

    Section 23. NO RESTRICTIONS WITH RESPECT TO MARGIN STOCK.  Notwithstanding
any other provisions of this Agreement or the Notes, and further implementing
the exceptions with respect to margin stock (as defined in Regulation U of the
Board of Governors of the Federal Reserve System) from the restrictions on Liens
in Section 6.2, the restrictions on sale of assets in Section 6.6, and certain
defaults in Sections 9(f) and (g), (a) nothing in this Agreement or in the Notes
shall prevent any Borrower or any Subsidiary from selling, transferring,
pledging or otherwise disposing of any such margin stock, and (b) no Borrower's
or Subsidiary's right or ability to sell, transfer, pledge or otherwise dispose
of any such margin stock shall in any way be restricted while any Loan or Note
is outstanding, nor shall any such sale, transfer, pledge or other disposition
ever be the cause for acceleration of the maturity of the Notes, it being the
intention of the parties hereto that

<PAGE>

                                     -52-

in no event or manner shall the Loans, the Notes or any obligations of any of 
the Borrowers under this Agreement be secured, directly or indirectly, by any 
such margin stock.

    Section 24. TRANSITIONAL ARRANGEMENTS.

    Section 24.1. PRIOR CREDIT AGREEMENT SUPERSEDED.  This Agreement shall on
the Amendment Date supersede the Prior Credit Agreement in its entirety.  On the
Amendment Date, the rights and obligations of the parties evidenced by the Prior
Credit Agreement shall be evidenced by this Agreement and the other Loan
Documents, the "Loans" as defined in the Prior Credit Agreement shall be
converted to Loans as defined herein and all outstanding letters of credit
issued by the Agent for the account of the Borrowers prior to the Amendment Date
shall, for purposes of this Agreement, be Letters of Credit.

    Section 24.2. RETURN AND CANCELLATION OF NOTES.  As soon as reasonably
practicable after the Closing Date, the Banks under the Prior Credit Agreement
will promptly return to the Borrowers, marked "Substituted" or "Cancelled", as
the case may be, any notes of the Borrowers held by the Banks pursuant to the
Prior Credit Agreement.

    Section 24.3. INTEREST AND FEES UNDER PRIOR CREDIT AGREEMENT.  All interest
and fees and expenses, if any, owing or accruing under or in respect of the
Prior Credit Agreement through the Amendment Date shall be calculated as of the
Amendment Date (pro rated in the case of any fractional periods), and shall be
paid on the Amendment Date.  Commencing on the Amendment Date, the commitment
fees shall be payable by the Borrowers to the Agent for the account of the Banks
in accordance with Section 2.3.

    Section 24.4. WAIVER OF DEFAULTS AND EVENTS OF DEFAULT.  The Banks and the
Agent agree that upon the effectiveness of this Agreement, any Defaults or
Events of Defaults which may have existed under the Prior Credit Agreement shall
be deemed to be waived by the Banks and the Agent.

                     [Remainder of page intentionally left blank]<PAGE>

<PAGE>

                                     -53-

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

                             TRC COMPANIES, INC.

                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Vice President & Treasurer
                                    -----------------------------


                             MONITORING INSTRUMENTS FOR THE ENVIRONMENT, INC.

                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Treasurer                          
                                    -----------------------------


                             TRC ENVIRONMENTAL
                             CORPORATION

                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Vice President & Treasurer
                                    -----------------------------


                                  TRC ENGINEERS, INC. (d/b/a/ 
                                  Raymond Keyes Associates)
                                  
                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Treasurer                          
                                    -----------------------------


                             TRC INVESTMENT 
                             CORPORATION

                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Treasurer                          
                                    -----------------------------





<PAGE>

                                     -54-



                                  NORTH AMERICAN WEATHER CONSULTANTS

                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Treasurer                          
                                    -----------------------------
                                  
                                  
                                  ENVIRONMENTAL SOLUTIONS, INC.

                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Assistant Treasurer           
                                    -----------------------------


                                  TRC MARIAH ASSOCIATES, INC.

                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Assistant Treasurer           
                                    -----------------------------


                                  TRC GARROW ASSOCIATES, INC.


                             By: /s/   Harold C. Elston, Jr.    
                                 --------------------------------
- ------
                                  Harold C. Elston, Jr.
                             Title:    Treasurer                          
                                    -----------------------------


                             BANKBOSTON, N.A., (f/k/a
                             The First National Bank of Boston),
                             as Agent and individually

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



<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-END>                               SEP-30-1997
<CASH>                                         372,286
<SECURITIES>                                         0
<RECEIVABLES>                               26,593,295
<ALLOWANCES>                                         0
<INVENTORY>                                  1,059,491
<CURRENT-ASSETS>                            31,393,172
<PP&E>                                      20,464,529
<DEPRECIATION>                              16,021,998
<TOTAL-ASSETS>                              61,753,924
<CURRENT-LIABILITIES>                       13,546,003
<BONDS>                                              0
                                0
                                          0
<COMMON>                                       731,675
<OTHER-SE>                                  42,234,246
<TOTAL-LIABILITY-AND-EQUITY>                61,753,924
<SALES>                                     17,560,310
<TOTAL-REVENUES>                            17,560,310
<CGS>                                                0
<TOTAL-COSTS>                               17,142,796
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             220,251
<INCOME-PRETAX>                                197,263
<INCOME-TAX>                                    75,000
<INCOME-CONTINUING>                            122,263
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   122,263
<EPS-PRIMARY>                                      .02
<EPS-DILUTED>                                        0
        

</TABLE>


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