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

                              AMENDED AND RESTATED
                                 LOAN AGREEMENT

                          DATED AS OF DECEMBER 15, 1999

                                  by and among

                             WASTE MANAGEMENT, INC.

                                (the "Borrower")

                                       and

                                  THE GUARANTOR

                                       and

                            BANKBOSTON, N.A. ("BKB")
         BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION ("BOA")
                       CHASE BANK OF TEXAS, N.A. ("CHASE")
                 DEUTSCHE BANK AG, NEW YORK BRANCH ("DEUTSCHE")

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

                           (Collectively, the "Banks")

                                       and

            BKB AS ADMINISTRATIVE AGENT (the "Administrative Agent")

                                       and

           DEUTSCHE AS DOCUMENTATION AGENT (the "Documentation Agent")

                                       and

                       BOA AND CHASE AS SYNDICATION AGENTS
                           (the "Syndication Agents")

                                       and

        BANC OF AMERICA SECURITIES, LLC AND CHASE SECURITIES INC. ("CSI")
 AS JOINT LEAD ARRANGERS AND JOINT BOOK MANAGERS (the "Joint Lead Arrangers and
                              Joint Book Managers")


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<PAGE>   2




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                                TABLE OF CONTENTS

<TABLE>
<S>      <C>                                                                                      <C>
Section 1.  DEFINITIONS AND RULES OF INTERPRETATION..................................................1
         Section 1.1.  Definitions...................................................................1
         Section 1.2.  Rules of Interpretation.......................................................15
Section 2.  THE SYNDICATED LOAN FACILITIES...........................................................16
         Section 2.1.  Commitment to Lend............................................................16
         Section 2.2.  Facility Fee..................................................................16
         Section 2.3.  Reduction of Total Commitment.................................................17
         Section 2.4.  The Syndicated Notes..........................................................17
         Section 2.5.  Interest on Syndicated Loans..................................................18
         Section 2.6.  Requests for Syndicated Loans.................................................18
         Section 2.7.  Election of Eurodollar Rate; Notice of Election; Interest Periods; Minimum
         Amounts.....................................................................................19
         Section 2.8.  Funds for Syndicated Loans....................................................20
         Section 2.9.  Maturity of the Revolving Credit Loans and Reimbursement
         Obligations.................................................................................20
         Section 2.10.  Request for Extension of Revolving Credit Maturity Date......................20
         Section 2.11.  Prepayments or Repayments of Revolving Credit Loans..........................21
         Section 2.12.  Swing Line Loans; Settlements................................................22
Section 3.  LETTERS OF CREDIT........................................................................23
         Section 3.1.  Letter of Credit Commitments..................................................23
         Section 3.2.  Reimbursement Obligation of the Borrower......................................24
         Section 3.3.  Obligations Absolute..........................................................24
         Section 3.4.  Reliance by the Issuing Banks.................................................25
         Section 3.5.  Notice Regarding Letters of Credit............................................25
         Section 3.6.  Letter of Credit Fee..........................................................25
Section 4.  COMPETITIVE BID LOANS....................................................................25
         Section 4.1.  The Competitive Bid Option....................................................26
         Section 4.2.  Competitive Bid Loan Accounts: Competitive Bid Notes..........................26
         Section 4.3.  Competitive Bid Quote Request; Invitation for Competitive Bid Quotes..........27
         Section 4.4.  Alternative Manner of Procedure...............................................27
         Section 4.5.  Submission and Contents of Competitive Bid Quotes.............................28
         Section 4.6.  Notice to Borrower............................................................29
         Section 4.7.  Acceptance and Notice by Borrower and Administrative Agent....................29
         Section 4.8.  Allocation by Administrative Agent............................................30
         Section 4.9.  Funding of Competitive Bid Loans..............................................30
         Section 4.10.  Funding Losses...............................................................30
         Section 4.11.  Repayment of Competitive Bid Loans; Interest.................................30
Section 5.  THE TERM LOAN............................................................................31
         Section 5.1.  Conversion of Revolving Credit Loans; the Term Loan...........................31
         Section 5.2.  The Term Notes................................................................31
         Section 5.3.  Repayments of the Term Loan...................................................31
         Section 5.4.  Optional Prepayment of Term Loan..............................................31
         Section 5.5.  Interest on Term Loan.........................................................32
</TABLE>

<PAGE>   3

                                       ii

<TABLE>
<S>      <C>                                                                                      <C>
         Section 5.5.1.  Notification by Borrower....................................................32
         Section 5.5.2.  Amounts, etc................................................................32
Section 6.  Provisions Relating to All Loans and Letters of Credit...................................32
         Section 6.1.  Payments......................................................................32
         Section 6.2.  Computations..................................................................34
         Section 6.3.  Illegality; Inability to Determine Eurodollar Rate............................34
         Section 6.4.  Additional Costs, Etc.........................................................34
         Section 6.5.  Capital Adequacy..............................................................36
         Section 6.6.  Certificate...................................................................36
         Section 6.7.  Eurodollar and Competitive Bid Indemnity......................................36
         Section 6.8.  Interest on Overdue Amounts...................................................37
         Section 6.9.  Interest Limitation...........................................................37
         Section 6.10.  Reasonable Efforts to Mitigate...............................................37
         Section 6.11.  Replacement of Banks.........................................................37
         Section 6.12.  Advances by Administrative Agent.............................................38
Section 7.  REPRESENTATIONS AND WARRANTIES...........................................................39
         Section 7.1.  Corporate Authority...........................................................39
         Section 7.2.  Governmental and Other Approvals..............................................39
         Section 7.3.  Title to Properties; Leases...................................................40
         Section 7.4.  Financial Statements; Solvency................................................40
         Section 7.5.  No Material Changes, Etc......................................................40
         Section 7.6.  Franchises, Patents, Copyrights, Etc..........................................41
         Section 7.7.  Litigation....................................................................41
         Section 7.8.  No Materially Adverse Contracts, Etc..........................................41
         Section 7.9.  Compliance With Other Instruments, Laws, Etc..................................41
         Section 7.10.  Tax Status...................................................................41
         Section 7.11.  No Event of Default..........................................................42
         Section 7.12.  Holding Company and Investment Company Acts..................................42
         Section 7.13.  Absence of Financing Statements, Etc.........................................42
         Section 7.14.  Employee Benefit Plans.......................................................42
         Section 7.14.1.  In General.................................................................42
         Section 7.14.2.  Terminability of Welfare Plans.............................................43
         Section 7.14.3.  Guaranteed Pension Plans...................................................43
         Section 7.14.4.  Multiemployer Plans........................................................43
         Section 7.15.  Environmental Compliance.....................................................43
         Section 7.16.  True Copies of Charter and Other Documents...................................45
         Section 7.17.  Disclosure...................................................................45
         Section 7.18.  Permits and Governmental Authority...........................................45
         Section 7.19.  Year 2000 Compliance.........................................................45
         Section 7.20.  Use of Proceeds.  ...........................................................46
Section 8.  AFFIRMATIVE COVENANTS OF THE BORROWER....................................................46
         Section 8.1.  Punctual Payment..............................................................46
         Section 8.2.  Maintenance of U.S. Office....................................................46
         Section 8.3.  Records and Accounts..........................................................46
         Section 8.4.  Financial Statements, Certificates and Information............................46
         Section 8.5.  Existence and Conduct of Business.............................................47
</TABLE>



<PAGE>   4
                                      iii

<TABLE>
<S>      <C>                                                                                      <C>
         Section 8.6.  Maintenance of Properties.....................................................48
         Section 8.7.  Insurance.....................................................................48
         Section 8.8.  Taxes.........................................................................48
         Section 8.9.  Inspection of Properties, Books and Contracts.................................49
         Section 8.10. Compliance with Laws, Contracts, Licenses and Permits; Maintenance of Material
                       Licenses and Permits..........................................................49
         Section 8.11. Environmental Indemnification.................................................49
         Section 8.12. Further Assurances............................................................50
         Section 8.13. Notice of Potential Claims or Litigation......................................50
         Section 8.14. Notice of Certain Events Concerning Insurance and Environmental Claims........50
         Section 8.15. Notice of Default.............................................................51
         Section 8.16. Use of Proceeds...............................................................51
         Section 8.17. Certain Transactions..........................................................51
Section 9.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER...............................................52
         Section 9.1.  Restrictions on Indebtedness..................................................52
         Section 9.2.  Restrictions on Liens.........................................................53
         Section 9.3.  Restrictions on Investments...................................................54
         Section 9.4.  Mergers, Consolidations, Sales................................................54
         Section 9.5.  Restricted Distributions and Redemptions......................................56
         Section 9.6.  Employee Benefit Plans........................................................57
Section 10.  FINANCIAL COVENANTS OF THE BORROWER.....................................................58
         Section 10.1. Interest Coverage Ratio.  ....................................................58
         Section 10.2. Total Debt to EBITDA..........................................................58
         Section 10.3. Minimum Net Worth.............................................................58
Section 11.  CONDITIONS PRECEDENT....................................................................58
         Section 11.1. Conditions To Effectiveness...................................................58
                       Section 11.1.1.  Corporate Action.............................................58
                       Section 11.1.2.  Loan Documents, Etc..........................................59
                       Section 11.1.3.  Certified Copies of Charter Documents........................59
                       Section 11.1.4.  Incumbency Certificate.......................................59
                       Section 11.1.5.  Certificates of Insurance....................................59
                       Section 11.1.6.  Opinions of Counsel..........................................59
                       Section 11.1.7.  Satisfactory Financial Condition.............................59
                       Section 11.1.8.  Payment of Amendment Fees....................................59
                       Section 11.1.9.  Amendments to Existing Debt..................................59
Section 12.  CONDITIONS TO ALL LOANS.................................................................59
         Section 12.1. Representations True..........................................................60
         Section 12.2. Performance; No Event of Default..............................................60
         Section 12.3. No Legal Impediment...........................................................60
         Section 12.4. Governmental Regulation.......................................................60
         Section 12.5. Proceedings and Documents.....................................................60
Section 13.  EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENT..............................61
         Section 13.1. Events of Default and Acceleration............................................61
         Section 13.2. Termination of Commitments....................................................63
</TABLE>


<PAGE>   5
                                       iv


<TABLE>
<S>      <C>                                                                                      <C>
         Section 13.3. Remedies......................................................................63
Section 14.  SETOFF..................................................................................64
Section 15.  EXPENSES................................................................................64
Section 16.  THE AGENTS..............................................................................64
         Section 16.1.  Appointment, Powers and Immunities...........................................64
         Section 16.2.  Actions By Administrative Agent..............................................65
         Section 16.3.  Indemnification..............................................................65
         Section 16.4.  Reimbursement................................................................65
         Section 16.5.  Documents....................................................................66
         Section 16.6.  Non-Reliance on Administrative Agent and Other Banks.........................66
         Section 16.7.  Resignation of Administrative Agent..........................................67
         Section 16.8.  Action by the Banks, Consents, Amendments, Waivers, Etc......................67
Section 17.  INDEMNIFICATION.........................................................................67
Section 18.  WITHHOLDING TAXES.......................................................................68
Section 19.  TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION...........................................70
         Section 19.1.  Sharing of Information with Section 20 Subsidiary............................70
         Section 19.2.  Confidentiality..............................................................70
         Section 19.3.  Prior Notification...........................................................70
         Section 19.4.  Other........................................................................71
Section 20.  SURVIVAL OF COVENANTS, ETC..............................................................71
Section 21.  ASSIGNMENT AND PARTICIPATION............................................................71
Section 22.  PARTIES IN INTEREST.....................................................................72
Section 23.  NOTICES, ETC............................................................................72
Section 24.  MISCELLANEOUS...........................................................................73
Section 25.  CONSENTS, ETC...........................................................................73
Section 26.  WAIVER OF JURY TRIAL....................................................................74
Section 27.  GOVERNING LAW; SUBMISSION TO JURISDICTION...............................................74
Section 28.  SEVERABILITY............................................................................74
Section 29.  GUARANTY................................................................................74
         Section 29.1.  Guaranty.....................................................................75
         Section 29.2.  Guaranty Absolute............................................................75
         Section 29.3.  Effectiveness; Enforcement...................................................75
         Section 29.4.  Waiver.......................................................................76
         Section 29.5.  Expenses.....................................................................76
         Section 29.6.  Concerning Joint and Several Liability of the Guarantor......................76
         Section 29.7.  Waiver.......................................................................78
         Section 29.8.  Subrogation; Subordination...................................................78
Section 30.  Pari Passu treatment....................................................................79
Section 31.  TRANSITIONAL ARRANGEMENTS...............................................................79
Section 32.  FINAL AGREEMENT.........................................................................79
</TABLE>


                                    Exhibits

        Exhibit A        Form of Syndicated Note
        Exhibit B        Form of Swing Line Note
        Exhibit C        Form of Competitive Bid Note
<PAGE>   6

                                       -v-


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

                                    Schedules

        Schedule 1             Banks; Commitment Percentages
        Schedule 1.1(a)        Domestic Strategic Dispositions
        Schedule 1.1(b)        European Strategic Dispositions
        Schedule 3.1(a)        Existing Letters of Credit
        Schedule 7.7           Litigation
        Schedule 7.15          Environmental Compliance
        Schedule 9.1(e)        Guarantor Indebtedness
        Schedule 9.2(a)        Existing Liens



<PAGE>   7
                                                                        BD DRAFT
                                                                        12/15/99


                       AMENDED AND RESTATED LOAN AGREEMENT

         This AMENDED AND RESTATED LOAN AGREEMENT is made as of the 15th day of
December, l999, by and among WASTE MANAGEMENT, INC., a Delaware corporation
having its chief executive office at 1001 Fannin Street, Suite 4000, Houston,
Texas 77002 (the "Borrower"), the Guarantor, and BANKBOSTON, N.A., a national
banking association having its principal place of business at 100 Federal
Street, Boston, MA 02110 ("BKB"), BANK OF AMERICA, N.A., a national banking
association having a place of business at 231 South LaSalle Street Chicago, IL
60697 ("BOA"), CHASE BANK OF TEXAS, N.A., a national banking association having
its principal place of business at 707 Travis Street, Houston, TX 77002
("Chase"), DEUTSCHE BANK AG, NEW YORK BRANCH, the duly licensed New York branch
of a German corporation having its principal place of business at 31 West 52nd
Street, New York, NY 10019 ("Deutsche"), and each of the other financial
institutions party hereto (collectively, the "Banks"), and BKB as administrative
agent (the "Administrative Agent"), Banc of America Securities LLC and Chase
Securities Inc. as joint lead arrangers and joint book managers (the "Joint Lead
Arrangers and Joint Book Managers"), BOA and Chase Securities Inc. as
syndication agents (the "Syndication Agents") and Deutsche as documentation
agent (the "Documentation Agent", and together with the Administrative Agent,
the Joint Lead Arrangers and Joint Book Managers and the Syndication Agents, the
"Agents").

         WHEREAS, the Borrower, the Guarantor, BKB, BOA, Chase, Deutsche,
certain of the Banks, BKB as administrative agent thereunder, Banc of America
Securities LLC and Chase Securities Inc. as lead arrangers and book managers
thereunder, BOA and Chase Securities Inc. as syndication agents thereunder and
Deutsche as documentation agent thereunder (collectively, the "Original
Parties"), are party to that certain Loan Agreement dated as of July 13, 1999,
by and among the Original Parties (the "Prior Loan Agreement"); and

         WHEREAS, the Borrower has requested changes in certain terms and the
pricing of the Prior Loan Agreement;

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

         SECTION 1.  DEFINITIONS AND RULES OF INTERPRETATION.  

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

         Absolute Competitive Bid Loan(s).  See Section 4.3(a).


<PAGE>   8

         Accountants.  See Section 8.4(a).

         Administrative Agent.  See Preamble.

         Affected Bank.  See Section 6.11.

         Agents.  See Preamble.

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

         Allied Waste Transactions. The series of transactions, which have been
designed to be substantially cash neutral in the aggregate, to be entered into
among Allied Waste Services, Inc. ("Allied"), the Company, and certain of their
respective affiliates, pursuant to which, among other things, (i) the Company
through its affiliates will purchase from Allied and its affiliates all of the
outstanding capital stock of Browning-Ferris Industries Limited ("BFIL") which
owns certain solid waste operations in Canada (the "Canadian Operations"), and
(ii) Allied through its affiliates will acquire from the Company and its
affiliates certain solid waste operations in the United States (the "US
Operations"); and including, in each case, such divestitures of Canadian
Operations and US Operations as may be required by applicable governmental
authorities in connection with their review of such transactions for their
potential antitrust and competitive effects.

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

         Applicable Eurodollar Rate. The applicable rate per annum of interest
on the Eurodollar Loans as set forth in the Pricing Table.

         Applicable Facility Rate. The applicable rate per annum with respect to
the Facility Fee as set forth in the Pricing Table.

         Applicable L/C Rate. The applicable rate per annum on the Maximum
Drawing Amount as set forth in the Pricing Table.

         Applicable Requirements. See Section 8.10.

         Applicable Swing Line Rate. The annual rate of interest agreed upon
from time to time by BKB and the Borrower with respect to Swing Line Loans.

         Assignment and Acceptance. See Section 21.

         Availability. As of any date of determination, the aggregate amount of
unused commitments of the lenders party to this Agreement and the Revolving
Credit Facility as of such date.


<PAGE>   9

         Balance Sheet Date.  December 31, 1998.

         Banks.  See Preamble.

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

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

         BKB.  See Preamble.

         BOA.  See Preamble.

         Borrower.  See Preamble.

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

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

         CERCLA.  See Section 7.15(a).

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

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

         Chase.  See Preamble.

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

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

         Commitment Percentage. With respect to each Bank, the percentage
initially set forth next to such Bank's name on Schedule 1 hereto, as the same
may be adjusted in accordance with Section 21.


<PAGE>   10

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

         Competitive Bid Loan Accounts.  See Section 4.2(a).

         Competitive Bid Margin.  See Section 4.5(b)(iv).

         Competitive Bid Notes.  See Section 4.2(b).

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

         Competitive Bid Quote Request.  See Section 4.3.

         Competitive Bid Rate.  See Section 4.5(b)(v).

         Compliance Certificate.  See Section 8.4(c).

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

         Consolidated Earnings Before Interest and Taxes, or EBIT. For any
period, the Consolidated Net Income (or Deficit) of the Borrower and its
Subsidiaries on a consolidated basis plus the sum of (1) interest expense, (2)
income taxes, and (3) $1,762,517,000 in charges, taken as a special charge in
respect of the Borrower's internal review in the fiscal quarter ending September
30, 1999, to the extent that each of items (1) through (3) was deducted, without
duplication, in determining Consolidated Net Income (or Deficit) in the relevant
period.

         Consolidated Earnings Before Interest, Taxes, Depreciation and
Amortization or EBITDA. For any period, EBIT plus (a) depreciation expense, and
(b) amortization expense to the extent the same would be included in the
calculation of Consolidated Net Income (or Deficit) for such period, determined
in accordance with GAAP.

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

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


<PAGE>   11

         Consolidated Tangible Assets. Consolidated Total Assets less the sum
of:

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

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

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

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

         Defaulting Bank.  See Section 6.11.

         Defaults.  See Section 13.1.

         Deutsche.  See Preamble.

         Disclosure Documents. The Borrower's financial statements referred to
in Section 7.4 and filings made by the Borrower or Guarantor with the Securities
and Exchange Commission that were publicly available prior to the Effective Date
which were provided to the Banks.

         Disposal. See "Release".

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

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

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


<PAGE>   12

         Domestic Strategic Dispositions. Any sale or other disposition of core
and non-core assets owned by the Borrower and its Subsidiaries formed under the
laws of the United States or any State thereof as more particularly described in
Schedule 1.1(a), as such Schedule 1.1(a) may be added to from time to time by
the Borrower with the approval of the Administrative Agent.

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

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

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

         Effective Date. The date on which the conditions precedent set forth in
Section 11.1 hereof are satisfied and the Majority Banks consent to this
Agreement.

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

         Environmental Laws.  See Section 7.15(a).

         EPA.  See Section 7.15(b).

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

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

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

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

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


<PAGE>   13

         Eurodollar Lending Office. Initially, the office of each Bank set forth
in the administrative materials provided to the Administrative Agent;
thereafter, upon notice to the Administrative Agent, such other office of such
Bank that shall be making or maintaining Eurodollar Loans.

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

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

         European Credit Facilities. That certain Credit Agreement dated
November 26, 1998, providing for borrowings by Waste Management International
("International") and other foreign Subsidiaries of the Borrower, guaranteed by
the Borrower, in the amount of Euro 167,000,000, as amended; and that certain
Credit Agreement dated November 26, 1998, providing for borrowings by
International and other foreign subsidiaries, guaranteed by the Borrower, in the
amount of Euro 30,000,000, as amended.

         European Strategic Dispositions. Any sale or other disposition of core
and non-core assets owned by any Subsidiary of the Borrower not formed under the
laws of the United States or any State thereof as more particularly described in
Schedule 1.1(b), as such Schedule 1.1(b) may be added to from time to time by
the Borrower with the approval of the Administrative Agent.

         Events of Default. See Section 13.1.

         Existing Domestic Bank Debt. The amount of Indebtedness outstanding
under this Agreement and the Revolving Credit Facility from time to time.

         Facility Fee. See Section 2.2.

         generally accepted accounting principles or GAAP. (i) When used in
Section 10, whether directly or indirectly through reference to a capitalized
term used therein, means (A) principles that are consistent with the principles
promulgated or adopted by the Financial Accounting Standards Board and its
predecessors, in effect for the fiscal year ended on the Balance Sheet Date, and
(B) to the extent consistent with such principles, the accounting practice of
the Borrower reflected in its financial statements for the year ended on the
Balance Sheet Date, and (ii) when used in general, other than as provided above,
means principles that are (A) consistent with the principles promulgated or
adopted by the Financial Accounting Standards Board and its



<PAGE>   14

predecessors, as in effect from time to time, and (B) consistently applied with
past financial statements of the Borrower adopting the same principles, provided
that in each case referred to in this definition of "generally accepted
accounting principles" a certified public accountant would, insofar as the use
of such accounting principles is pertinent, be in a position to deliver an
unqualified opinion (other than a qualification regarding changes in generally
accepted accounting principles) as to financial statements in which such
principles have been properly applied.

         Guaranteed Obligations. See Section 29.1.

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

         Guarantor. Waste Management Holdings, Inc., a wholly owned Subsidiary
of the Borrower.

         Hazardous Substances. See Section 7.15(b).

         Head Office. The Administrative Agent's head office located in Boston,
Massachusetts, or at such other location as the Administrative Agent may
designate from time to time.

         Indebtedness. Collectively without duplication, whether classified as
Indebtedness, an Investment or otherwise on the obligor's balance sheet, (a) all
indebtedness for borrowed money, (b) all obligations for the deferred purchase
price of property or services (other than trade payables not overdue by more
than ninety (90) days incurred in the ordinary course of business), (c) all
obligations evidenced by notes, bonds, debentures or other similar debt
instruments, (d) all obligations created or arising under any conditional sale
or other title retention agreement with respect to property acquired (even
though the rights and remedies of the seller or lender under such agreement in
the event of default are limited to repossession or sale of such property), (e)
all obligations, liabilities and indebtedness under Capitalized Leases, (f) all
obligations, liabilities or indebtedness (contingent or otherwise) under surety,
performance bonds or any other bonding arrangements, (g) all Indebtedness of
others referred to in clauses (a) through (f) above which is guaranteed, or in
effect guaranteed, directly or indirectly in any manner, including through an
agreement (A) to pay or purchase such Indebtedness or to advance or supply funds
for the payment or purchase of such Indebtedness, (B) to purchase, sell or lease
(as lessee or lessor) property, or to purchase or sell services, primarily for
the purpose of enabling any Person to make payment of such Indebtedness or to
assure the holder of such Indebtedness against loss, (C) to supply funds to or
in any other manner invest in any Person (including any agreement to pay for
property or services irrespective of whether such property is received or such
services are rendered) or (D) otherwise to assure any Person against loss, and
(h) all Indebtedness referred to in clauses (a) through (g) above secured or
supported by (or for which the holder of such Indebtedness has an existing
right, contingent or otherwise, to be secured or supported by) any lien or
encumbrance on (or other right of recourse to or against) property (including,
without limitation, accounts and contract rights), even though the owner of the
property has not assumed or become liable, contractually or otherwise, for the
payment of such 



<PAGE>   15

Indebtedness; provided that if a Permitted Receivables Transaction is
outstanding and is accounted for as a sale of accounts receivable under
generally accepted accounting principles, Indebtedness determined as aforesaid
shall be adjusted to include the additional Indebtedness, determined on a
consolidated basis, which would have been outstanding had such Permitted
Receivables Transaction been accounted for as a borrowing. The sum of all such
Indebtedness of the Borrower and its Subsidiaries on a consolidated basis under
(a) through (h) above shall be referred to as "Total Debt"; provided, however,
that Indebtedness under (f) above shall be included in such calculation only to
the extent that a surety has been called upon to make payment on a bond.

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

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

         Interim Balance Sheet Date. September 30, 1999.

         Investments. All expenditures made by a Person and all liabilities
incurred (contingently or otherwise) by a Person for the acquisition of stock
(other than the stock of wholly owned Subsidiaries), pre-payments for use of
landfill air space in excess of usual and customary industry practice, or
Indebtedness of, or for loans, advances, capital contributions or transfers of
property to, or in respect of any guaranties or other commitments as described
under Indebtedness, or obligations of, any other Person, including without
limitation, the funding of any captive insurance company (other than loans,
advances, capital contributions or transfers of property to any wholly owned
Subsidiaries or guaranties with respect to Indebtedness of wholly owned
Subsidiaries). In determining the aggregate amount of Investments outstanding at
any particular time: (a) the amount of any Investment represented by a guaranty
shall be taken at not less than the principal amount of the obligations
guaranteed and still outstanding; (b) there shall be included as an Investment
all interest accrued with respect to Indebtedness constituting an Investment
unless and until such interest is paid; (c) there shall be deducted in respect
of each 


<PAGE>   16

such Investment any amount received as a return of capital (but only by
repurchase, redemption, retirement, repayment, liquidating dividend or
liquidating distribution); (d) there shall not be deducted in respect of any
Investment any amounts received as earnings on such Investment, whether as
dividends, interest or otherwise, except that accrued interest included as
provided in the foregoing clause (b) may be deducted when paid; and (e) there
shall not be deducted from the aggregate amount of Investments any decrease in
the value thereof.

         Issuance Fee. See Section 3.6.

         Issuing Banks. The Bank(s) issuing Letters of Credit, which shall be
(a) BKB, BOA and Chase, and (b) such other Banks as agreed to by the Borrower
and the Administrative Agent; and (c) the Transitional Issuing Banks.

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

         Letter of Credit Fee. See Section 3.6.

         Letter of Credit Participation. See Section 3.1(b).

         Letters of Credit. Standby or direct-pay letters of credit issued or to
be issued by the Issuing Banks under Section 3 hereof for the account of the
Borrower.

         LIBOR Competitive Bid Loan(s). See Section 4.3(a).

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

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


<PAGE>   17

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

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

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

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

         MGT.  Morgan Guaranty Trust Company of New York.

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

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

         Net Cash Proceeds. With respect to any sale of any assets of the
Borrower or any of its Subsidiaries, the gross cash consideration received by
the Borrower or any of its Subsidiaries, net of (a) commissions, direct sales
costs, normal closing costs and adjustments, (b) the amount used to repay any
Indebtedness secured by such assets, (c) any amount which by the terms of such
sale, or by applicable law must be repaid out of the proceeds of such asset
sale, (d) all amounts to be provided by the seller as a reserve, in accordance
with GAAP, or retained in escrow with respect to any liabilities associated with
the assets disposed of in such asset sale, (e) income taxes attributable to such
sale, and (f) professional fees and expenses incurred directly or payable in
connection therewith; provided that if any consideration which would otherwise
constitute "Net Cash Proceeds" is required to be held in escrow pending
determination of whether a purchase price adjustment will be made, such escrow
amount shall become "Net Cash Proceeds" only at such time as it is released from
escrow. For purposes of determining the amount of Net Cash Proceeds associated
with any asset sale which is in a currency other than U.S. Dollars, the Borrower
shall, for purposes of Sections 9.4 and 9.5, calculate an equivalent amount of
such Net Cash Proceeds in U.S. Dollars by utilizing the conversion rates
published in the Wall Street Journal on the first Business Day of the week
during which such asset sale occurred.

         New Lending Office. See Section 6.1(c).

         Non-U.S. Bank. See Section 6.1(b).

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


<PAGE>   18

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

         Original Parties. See Recitals.

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

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

         Permitted Liens. See Section 9.2.

         Permitted Receivables Transaction. Any sale or sales of, and/or
securitization of, any accounts receivable of the Borrower and/or any of its
Subsidiaries (the "Receivables") pursuant to which (a) the Borrower and its
Subsidiaries realize aggregate net proceeds of not more than $500,000,000 at any
one time outstanding, including, without limitation, any revolving purchase(s)
of Receivables where the maximum aggregate uncollected purchase price (exclusive
of any deferred purchase price) for such Receivables at any time outstanding
does not exceed $500,000,000, and (b) which Receivables shall not be discounted
more than 25%.

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


<PAGE>   19

         Pricing Table:

<TABLE>
<CAPTION>
    --------------------------------------------------------------------------------------------------------------
                                                                                                   APPLICABLE
                            SENIOR PUBLIC                  APPLICABLE           APPLICABLE         EURODOLLAR
      LEVEL                  DEBT RATING                  FACILITY RATE          L/C RATE             RATE
    --------------------------------------------------------------------------------------------------------------
<S>             <C>                                       <C>                 <C>               <C>
        1       (Greater  than  or  equal  to  BBB by        0.2000%             1.0500%         Eurodollar Rate
                Standard  & Poor's and  greater  than       per annum           per annum         plus 1.0500%
                or  equal  to  Ba2  by   Moody's)  or                                               per annum
                (greater  than  or  equal  to BBB- by
                Standard  & Poor's and  greater  than
                or equal to Ba1 by Moody's)
    --------------------------------------------------------------------------------------------------------------
        2       BBB- by  Standard & Poor's and Ba2 by        0.2500%             1.2500%         Eurodollar Rate
                Moody's                                     per annum           per annum         plus 1.2500%
                                                                                                    per annum
    --------------------------------------------------------------------------------------------------------------
        3       (BB+ by  Standard & Poor's and Ba1 or        0.2500%             1.5000%         Eurodollar Rate
                Ba2 by  Moody's) or (BB by Standard &       per annum           per annum         plus 1.5000%
                Poor's and Ba1 by Moody's)                                                          per annum
    --------------------------------------------------------------------------------------------------------------
        4       BB by  Standard  & Poor's  and Ba2 by        0.3000%             1.7000%         Eurodollar Rate
                Moody's                                     per annum           per annum         plus 1.7000%
                                                                                                    per annum
    --------------------------------------------------------------------------------------------------------------
        5       (Less  than BB by  Standard  & Poor's        0.3750%             1.8750%         Eurodollar Rate
                or Ba2 by  Moody's)  or  (Unrated  by       per annum           per annum         plus 1.8750%
                Standard & Poor's and Moody's)                                                      per annum
    --------------------------------------------------------------------------------------------------------------
</TABLE>

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

         Prior Loan Agreement. See Preamble.

         RCRA. See Section 7.15(a).

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


<PAGE>   20

         Reference Banks. BKB, BOA, and Deutsche.

         Regulatory Disposition. The disposition of any assets of the Borrower
and its Subsidiaries required under antitrust laws in connection with the WMI
Merger.

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

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

         Replacement Bank.  See Section 6.11.

         Replacement Notice.  See Section 6.11.

         Revolving Credit Facility. That certain Third Amended and Restated
Revolving Credit Agreement dated as of December 15, 1999 by and among the
Borrower, Sanifill, the Guarantor, BOA, MGT and the other banks party thereto,
and MGT as administrative and documentation agent thereunder, as amended from
time to time.

         Revolving Credit Loans. Collectively, the Syndicated Loans, the Swing
Line Loans and the Competitive Bid Loans.

         Revolving Credit Maturity Date. July 10, 2000, as the same may be
extended in the sole discretion of the Banks pursuant to Section 2.10 hereof.

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

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

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

         Senior Public Debt Rating. The ratings of the Borrower's public
unsecured long-term senior debt, without third party credit enhancement, issued
by Moody's and Standard & Poor's.


<PAGE>   21

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

         Strategic Dispositions. Domestic Strategic Dispositions and European
Strategic Dispositions.

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

         Swing Line Loans.  See Section 2.12(a).

         Swing Line Note.  See Section 2.12(a).

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

         Swing Line Settlement Amount.  See Section 2.12(b).

         Swing Line Settlement Date.  See Section 2.12(b).

         Swing Line Settling Bank.  See Section 2.12(b).

         Syndicated Loan Request.  See Section 2.6(a).

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

         Syndicated Notes.  See Section 2.4(a).

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

         Term Loan Maturity Date. The date 364 days after the Revolving Credit
Maturity Date.

         Term Notes. See Section 5.1.

         Terminated Plans. The Waste Management, Inc. Pension Plan and The Waste
Management of Alameda County, Inc. Retirement Plan.

         Total Commitment. $3,000,000,000, as such amount may be reduced
pursuant to Section 2.3 hereof, or, if such Total Commitment has been terminated
pursuant to Section 2.3 or Section 13.2 hereof, zero.
<PAGE>   22

         Transitional Issuing Banks. Bank One, Texas, N.A., First Union National
Bank, and Mellon Bank, N.A.

         WMI Merger. The merger of Dome into the Guarantor pursuant to the WMI
Merger Agreement, on or about July 16, 1998, with the Guarantor having become
the surviving corporation and having become a wholly owned subsidiary of the
Borrower and with the Guarantor having changed its name to Waste Management
Holdings, Inc.

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

         Year 2000 Compliant.  See Section 7.19.

         SECTION 1.2.  RULES OF INTERPRETATION.  

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

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

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

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

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

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

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

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

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


<PAGE>   23

         SECTION 2.  THE SYNDICATED LOAN FACILITIES.

         SECTION 2.1.  COMMITMENT TO LEND.  

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

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

         SECTION 2.2. FACILITY FEE. The Borrower agrees to pay to the
Administrative Agent for the account of the Banks a fee (the "Facility Fee") on
the Total Commitment equal to the Applicable Facility Rate multiplied by the
Total Commitment, provided that in the event that the Borrower exercises its
option under Section 5 to convert the outstanding Revolving Credit Loans into a
Term Loan, the Facility Fee will be equal to the aggregate principal amount of
the Term Loan multiplied by the Applicable Facility Rate. The Facility Fee shall
be payable for the period from and after the Effective Date quarterly in arrears
on the first day of each calendar quarter for the immediately preceding calendar
quarter with the first such payment commencing on January 1, 2000 and with a
final payment on the Revolving Credit Maturity Date (or on the date of
termination in full of the Total Commitment, if earlier), provided that in the
event the Borrower opts to convert its outstanding Revolving Credit Loans into a
Term Loan, the final payment shall be on the Term Loan Maturity Date (or on the
date the Term Loan is paid in full, if earlier). The Facility Fee shall be
distributed pro rata among the Banks in accordance with each Bank's Commitment
Percentage (as determined prior to the date the Borrower converts the
outstanding Revolving Credit Loans into a Term Loan, with respect to the
Facility Fee payable on the Term Loan).

         SECTION 2.3.  REDUCTION OF TOTAL COMMITMENT.  

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

                  (b) The Total Commitment shall be automatically reduced as
         required pursuant to Sections 9.4(c) and (d), whereupon each Bank's
         Commitment shall be reduced pro rata in accordance with such Bank's
         Commitment Percentage of the amount terminated.


<PAGE>   24

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

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

         SECTION 2.4.  THE SYNDICATED NOTES.  

                  (a) The Syndicated Loans shall be evidenced by separate
         promissory notes of the Borrower in substantially the form of Exhibit A
         hereto (each, a "Syndicated Note"), dated as of the Effective Date (or
         such later date at which a Bank becomes a party hereto pursuant to
         Section 21) and completed with appropriate insertions. One Syndicated
         Note shall be payable to the order of each Bank in an amount equal to
         its maximum Commitment, and shall represent the obligation of the
         Borrower to pay such Bank such principal amount or, if less, the
         outstanding principal amount of all Syndicated Loans made by such Bank,
         plus interest accrued thereon, as set forth herein.

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

         SECTION 2.5.  INTEREST ON SYNDICATED LOANS.  

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

                  (b) Interest shall be payable (i) monthly in arrears on the
         first Business Day of each month, with the first such payment
         commencing January 1, 2000, on Base Rate Loans, (ii) on the last day of
         the applicable Interest Period, and if such Interest Period is longer
         than three months, also on the last day of each three month period
         following the commencement of such Interest Period, on Eurodollar
         Loans, and (iii) on the Revolving Credit Maturity Date for all
         Revolving Credit Loans.


<PAGE>   25

         SECTION 2.6.  REQUESTS FOR SYNDICATED LOANS.  

                  (a) The Borrower shall give to the Administrative Agent
         written notice in the form of Exhibit D hereto (or telephonic notice
         confirmed in writing or a facsimile in the form of Exhibit D hereto) of
         each Syndicated Loan requested hereunder (a "Syndicated Loan Request")
         not later than (a) 11:00 a.m. (New York time) on the proposed Drawdown
         Date of any Base Rate Loan, or (b) 11:00 a.m. (New York time) three (3)
         Eurodollar Business Days prior to the proposed Drawdown Date of any
         Eurodollar Loan. Each such Syndicated Loan Request shall specify (A)
         the principal amount of the Syndicated Loan requested, (B) the proposed
         Drawdown Date of such Syndicated Loan, (C) whether such Syndicated Loan
         requested is to be a Base Rate Loan or a Eurodollar Loan, and (D) the
         Interest Period for such Syndicated Loan, if a Eurodollar Loan. Each
         Syndicated Loan requested shall be in a minimum amount of $10,000,000.
         Each such Syndicated Loan Request shall reflect the Maximum Drawing
         Amount of all Letters of Credit outstanding and the amount of all
         Revolving Credit Loans outstanding (including Competitive Bid Loans and
         Swing Line Loans). Syndicated Loan Requests made hereunder shall be
         irrevocable and binding on the Borrower, and shall obligate the
         Borrower to accept the Syndicated Loan requested from the Banks on the
         proposed Drawdown Date.

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

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

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

                  (a) At the Borrower's option, so long as no Default or Event
         of Default has occurred and is then continuing, the Borrower may (i)
         elect to convert any Base Rate Loan or a portion thereof to a
         Eurodollar Loan, (ii) at the time of any Syndicated Loan Request,
         specify that such requested Loan shall be a Eurodollar Loan, or (iii)
         upon expiration of the applicable Interest Period, elect to maintain an
         existing Eurodollar Loan as such, provided that the Borrower give
         notice to the Administrative Agent pursuant to


<PAGE>   26

         Section 2.7(b) hereof. Upon determining any Eurodollar Rate, the
         Administrative Agent shall forthwith provide notice thereof to the
         Borrower and the Banks, and each such notice to the Borrower shall be
         considered prima facie correct and binding, absent manifest error.

                  (b) Three (3) Eurodollar Business Days prior to the making of
         any Eurodollar Loan or the conversion of any Base Rate Loan to a
         Eurodollar Loan, or, in the case of an outstanding Eurodollar Loan, the
         expiration date of the applicable Interest Period, the Borrower shall
         give written, telex or facsimile notice (or telephonic notice promptly
         confirmed in a writing or a facsimile) received by the Administrative
         Agent not later than 11:00 a.m. (New York time) of its election
         pursuant to Section 2.7(a). Each such notice delivered to the
         Administrative Agent shall specify the aggregate principal amount of
         the Syndicated Loans to be borrowed or maintained as or converted to
         Eurodollar Loans and the requested duration of the Interest Period that
         will be applicable to such Eurodollar Loan, and shall be irrevocable
         and binding upon the Borrower. If the Borrower shall fail to give the
         Administrative Agent notice of its election hereunder together with all
         of the other information required by this Section 2.7(b) with respect
         to any Syndicated Loan, whether at the end of an Interest Period or
         otherwise, such Syndicated Loan shall be deemed a Base Rate Loan. The
         Administrative Agent shall promptly notify the Banks in writing (or by
         telephone confirmed in writing or by facsimile) of such election.

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

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

                  (e) Subject to the terms and conditions of Section 6.7 hereof,
         if any Affected Bank demands compensation under Section 6.4(c) or (d)
         with respect to any Eurodollar Loan, the Borrower may at any time, upon
         at least three (3) Business Days' prior written notice to the
         applicable Administrative Agent, elect to convert such Eurodollar Loan
         into a Base Rate Loan (on which interest and principal shall be payable
         contemporaneously with the related Eurodollar Loans of the other
         Banks). Thereafter, and until such time as the Affected Bank notifies
         the Administrative Agent that the circumstances giving rise to the
         demand for compensation under Section 6.4(c) or (d) no longer exist,
         all requests for Eurodollar Loans from such Affected Bank shall be
         deemed to be requests for Base Rate Loans. Once the Affected Bank
         notifies the Administrative Agent that such circumstances no longer
         exist, the Borrower may elect that the principal amount of each such
         Loan converted hereunder shall again bear interest as Eurodollar Loans
         beginning on the first day of the next succeeding Interest Period
         applicable to the related Eurodollar Loans of the other Banks.

         SECTION 2.8. FUNDS FOR SYNDICATED LOANS. Not later than 1:00 p.m. (New
York time) on the proposed Drawdown Date of Syndicated Loans, each of the Banks
will make available to the Administrative Agent at its Head Office, in
immediately available funds, the amount of its Commitment Percentage of the
amount of the requested Loan. Upon receipt from each Bank of such amount, and
upon receipt of the documents required by Section 11 and Section 12 and the
satisfaction of 



<PAGE>   27

the other conditions set forth therein, the Administrative Agent will make
available to the Borrower the aggregate amount of such Syndicated Loans made
available by the Banks. The failure or refusal of any Bank to make available to
the Administrative Agent at the aforesaid time and place on any Drawdown Date
the amount of its Commitment Percentage of the requested Syndicated Loan shall
not relieve any other Bank from its several obligations hereunder to make
available to the Administrative Agent the amount of such Bank's Commitment
Percentage of the requested Loan.

         SECTION 2.9. MATURITY OF THE REVOLVING CREDIT LOANS AND REIMBURSEMENT
OBLIGATIONS. The Borrower promises to pay on the Revolving Credit Maturity Date,
and there shall become absolutely due and payable on the Revolving Credit
Maturity Date, all of the Revolving Credit Loans and unpaid Reimbursement
Obligations outstanding on such date, together with any and all accrued and
unpaid interest thereon and any fees and other amounts owing hereunder.

         SECTION 2.10. REQUEST FOR EXTENSION OF REVOLVING CREDIT MATURITY DATE.
The Borrower may, provided that no Default or Event of Default has occurred and
is continuing, by written notice to the Administrative Agent given not more than
sixty (60) days nor less than forty-five (45) days prior to the initial
Revolving Credit Maturity Date (the "Initial Maturity Date") request that the
Initial Maturity Date be extended to the date which is 364 days after the
Initial Maturity Date. The Administrative Agent shall notify the Banks of such
request promptly after receipt, and request each Bank to notify the
Administrative Agent of its determination to consent or not to consent to such
extension. Each Bank which makes a determination not to consent shall notify the
Administrative Agent of such determination by the thirtieth (30th) day prior to
the Initial Maturity Date (without prejudice to any Bank's right to determine
not to consent after such thirtieth (30th) day but on or before the tenth (10th)
Business Day before the Initial Maturity Date). The Borrower may take the
actions permitted by Section 6.11 to replace any Bank that fails to consent to
such extension, or reduce the Total Commitment as permitted under Section 2.3.
If the Majority Banks (including any Replacement Bank, if applicable) consent to
the extension by so notifying the Administrative Agent in writing no earlier
than ten (10) Business Days prior to the Initial Maturity Date, the Revolving
Credit Maturity Date for Revolving Credit Loans of such consenting or
Replacement Banks shall be extended for 364 days. The determination of each Bank
shall be in the sole discretion of such Bank. Each Bank shall give written
notice of its determination to consent or not to consent to such extension
pursuant to this Section 2.10, no earlier than the tenth (10th) Business Day
prior to the Initial Maturity Date. All non-consenting Banks' Revolving Credit
Loans shall be payable in full on the Initial Maturity Date, unless the Borrower
has exercised its option to term out all Revolving Credit Loans pursuant to
Section 5.1. Any Bank which fails to give written notice of its consent or
non-consent shall be deemed not to have consented to the extension hereunder.

         SECTION 2.11.  PREPAYMENTS OR REPAYMENTS OF REVOLVING CREDIT LOANS.  

                  (a) Optional Prepayments: Subject to the terms and conditions
         of Section 6.7, the Borrower shall have the right, at its election, to
         repay or prepay the outstanding amount of the Revolving Credit Loans
         (other than Competitive Bid Loans), as a whole or in part, at any time
         without penalty or premium. The Borrower shall give the Administrative
         Agent no later than 11:00 a.m. (New York time) (i) on the proposed date
         of prepayment 



<PAGE>   28

         or repayment of Base Rate Loans, and (ii) three (3) Eurodollar Business
         Day prior to the proposed date of prepayment or repayment of Eurodollar
         Rate Loans, written notice (or telephonic notice confirmed in writing
         or by facsimile) of any proposed prepayment or repayment pursuant to
         this Section 2.11, specifying the proposed date of prepayment or
         repayment of such Loans and the principal amount to be paid.
         Notwithstanding the foregoing, the Borrower may not prepay any
         Competitive Bid Loans. The Administrative Agent shall promptly notify
         each Bank by written notice (or telephonic notice confirmed in writing
         or by facsimile) of such notice of payment.

                  (b) Mandatory Repayments:

                                    (i) If at any time the sum of the
                           outstanding principal amount of the Revolving Credit
                           Loans plus the Maximum Drawing Amount of all
                           outstanding Letters of Credit exceeds the Total
                           Commitment, whether by reduction of the Total
                           Commitment or otherwise, then the Borrower shall
                           immediately pay the amount of such excess to the
                           Administrative Agent, (A) for application to the
                           Revolving Credit Loans, first to Syndicated Loans,
                           then to Competitive Bid Loans, subject to Section
                           6.7, or (B) if no Revolving Credit Loans shall be
                           outstanding, to be held by the Administrative Agent
                           for the benefit of the Banks as collateral security
                           for such excess Maximum Drawing Amount and the
                           Borrower hereby grants a security interest in such
                           amount to the Administrative Agent for the benefit of
                           the Banks; provided, however, that if the amount of
                           cash collateral held by the Administrative Agent
                           pursuant to this Section 2.11(b)(i) exceeds the
                           Maximum Drawing Amount required to be collateralized
                           from time to time, the Administrative Agent shall
                           return such excess to the Borrower.

                                    (ii) Payments required pursuant to Section
                           Section 9.4(c) and (d) shall be applied in the manner
                           set forth in subsection (i) above.

         SECTION 2.12.  SWING LINE LOANS; SETTLEMENTS.

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


<PAGE>   29

                  (b) The Banks shall effect Swing Line Settlements on (i) the
         Business Day immediately following any day which BKB gives written
         notice to the Administrative Agent to effect a Swing Line Settlement,
         (ii) the Business Day immediately following the Administrative Agent's
         becoming aware of the existence of any Default or Event of Default, and
         (iii) the Revolving Credit Maturity Date (each such date, a "Swing Line
         Settlement Date"). One (1) Business Day prior to each such Swing Line
         Settlement Date, the Administrative Agent shall give telephonic notice
         to the Banks of (A) the respective outstanding amount of Syndicated
         Loans made by each Bank as at the close of business on the prior day,
         (B) the amount that any Bank, as applicable (a "Swing Line Settling
         Bank"), shall pay to effect a Swing Line Settlement (a "Swing Line
         Settlement Amount") and (C) the portion (if any) of the aggregate Swing
         Line Settlement Amount to be paid to each Bank. A statement of the
         Administrative Agent submitted to the Banks with respect to any amounts
         owing hereunder shall be prima facie evidence of the amount due and
         owing. Each Swing Line Settling Bank shall, not later than 1:00 p.m.
         (New York time) on each Swing Line Settlement Date, effect a wire
         transfer of immediately available funds to the Administrative Agent at
         its Head Office in the amount of such Bank's Swing Line Settlement
         Amount. The Administrative Agent shall, as promptly as practicable
         during normal business hours on each Swing Line Settlement Date, effect
         a wire transfer of immediately available funds to each Bank of the
         Swing Line Settlement Amount to be paid to such Bank. All funds
         advanced by any Bank as a Swing Line Settling Bank pursuant to this
         Section 2.12(b) shall for all purposes be treated as a Base Rate Loan
         made by such Swing Line Settling Bank to the Borrower, and all funds
         received by any Bank pursuant to this Section 2.12(b) shall for all
         purposes be treated as repayment of amounts owed by the Borrower with
         respect to Base Rate Loans made by such Bank.

                  (c) The Administrative Agent may (unless notified to the
         contrary by any Swing Line Settling Bank by 12:00 noon (New York time)
         one (1) Business Day prior to the Settlement Date) assume that each
         Swing Line Settling Bank has made available (or will make available by
         the time specified in Section 2.12(b)) to the Administrative Agent its
         Swing Line Settlement Amount, and the Administrative Agent may (but
         shall not be required to), in reliance upon such assumption, make
         available to each applicable Bank its share (if any) of the aggregate
         Swing Line Settlement Amount. If the Swing Line Settlement Amount of
         such Swing Line Settling Bank is made available to the Administrative
         Agent by such Swing Line Settling Bank on a date after such Swing Line
         Settlement Date, such Swing Line Settling Bank shall pay the
         Administrative Agent on demand an amount equal to the product of (i)
         the average, computed for the period referred to in clause (iii) below,
         of the weighted average annual interest rate paid by the Administrative
         Agent for federal funds acquired by the Administrative Agent during
         each day included in such period times (ii) such Swing Line Settlement
         Amount times (iii) a fraction, the numerator of which is the number of
         days that elapse from and including such Swing Line Settlement Date to
         but not including the date on which such Swing Line Settlement Amount
         shall become immediately available to the Administrative Agent, and the
         denominator of which is 365. Upon payment of such amount such Swing
         Line Settling Bank shall be deemed to have delivered its Swing Line
         Settlement Amount on the Swing Line Settlement Date and shall become
         entitled to interest payable by the Borrower with respect to such Swing
         Line Settling Bank's Swing Line Settlement 



<PAGE>   30

         Amount as if such share were delivered on the Swing Line Settlement
         Date. If such Swing Line Settlement Amount is not in fact made
         available to the Administrative Agent by such Swing Line Settling Bank
         within three (3) Business Days of such Swing Line Settlement Date, the
         Administrative Agent shall be entitled to recover such amount from the
         Borrower, with interest thereon at the Base Rate.

                  (d) After any Swing Line Settlement Date, any payment by the
         Borrower of Swing Line Loans hereunder shall be allocated among the
         Banks, in amounts determined so as to provide that after such
         application and the related Swing Line Settlement, the outstanding
         amount of Syndicated Loans of each Bank equals, as nearly as
         practicable, such Bank's Commitment Percentage of the aggregate amount
         of Syndicated Loans.

         SECTION 3.  LETTERS OF CREDIT.

         SECTION 3.1.  LETTER OF CREDIT COMMITMENTS.

                  (a) Subject to the terms and conditions hereof and the receipt
         of a Letter of Credit Application by an Issuing Bank, with a copy to
         the Administrative Agent reflecting the Maximum Drawing Amount of all
         Letters of Credit (including the requested Letter of Credit), such
         Issuing Bank, on behalf of the Banks and in reliance upon the
         representations and warranties of the Borrower contained herein and the
         agreement of the Banks contained in Section 3.1(b) hereof, agrees to
         issue Letters of Credit for the account of the Borrower (which may,
         with such Issuing Bank's consent, incorporate automatic renewals for
         periods of up to twelve (12) months), in such form as may be requested
         from time to time by the Borrower and agreed to by the Issuing Bank;
         provided, however, that, after giving effect to such request, the
         aggregate Maximum Drawing Amount of all Letters of Credit issued at any
         time shall not exceed the lesser of (i) $100,000,000 or (ii) the Total
         Commitment minus the aggregate outstanding amount of the Revolving
         Credit Loans and provided further, that no Letter of Credit shall have
         an expiration date later than five (5) Business Days prior to the
         Revolving Credit Maturity Date. The letters of credit listed in
         Schedule 3.1(a) issued by the Issuing Banks and the Transitional
         Issuing Banks under the Prior Loan Agreement shall be Letters of Credit
         under this Agreement. Letters of Credit may only be renewed or extended
         by Letters of Credit issued by Issuing Banks (other than Transitional
         Issuing Banks) hereunder.

                  (b) Each Letter of Credit shall be denominated in Dollars.
         Each Bank severally agrees that it shall be absolutely liable, without
         regard to the occurrence of any Default or Event of Default, the
         termination of the Total Commitment pursuant to Section 13.2, or any
         other condition precedent whatsoever, to the extent of such Bank's
         Commitment Percentage to reimburse the Issuing Bank on demand for the
         amount of each draft paid by the Issuing Bank under each Letter of
         Credit to the extent that such amount is not reimbursed by the Borrower
         pursuant to Section 3.2 (such agreement for a Bank being called herein
         the "Letter of Credit Participation" of such Bank). Each Bank agrees
         that its obligation to reimburse the Issuing Bank pursuant to this
         Section 3.1(b) shall not be affected in any way by any circumstance
         other than the gross negligence or willful misconduct of the Issuing
         Bank.


<PAGE>   31

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

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

                  (a) if any draft presented under any Letter of Credit is
         honored by such Issuing Bank or such Issuing Bank otherwise makes
         payment with respect thereto, the sum of (i) the amount paid by such
         Issuing Bank under or with respect to such Letter of Credit, and (ii)
         the amount of any taxes, fees, charges or other costs and expenses
         whatsoever incurred by such Issuing Bank in connection with any payment
         made by such Issuing Bank under, or with respect to, such Letter of
         Credit, provided however, if the Borrower does not reimburse such
         Issuing Bank on the Drawdown Date, such amount shall, provided that no
         Event of Default under Section 13(g) or 13(h) has occurred, become
         automatically a Syndicated Loan which is a Base Rate Loan advanced
         hereunder in an amount equal to such sum; and

                  (b) upon the Revolving Credit Maturity Date or the
         acceleration of the Reimbursement Obligations with respect to all
         Letters of Credit in accordance with Section 13, an amount equal to the
         then Maximum Drawing Amount of all Letters of Credit shall be paid by
         the Borrower to the Administrative Agent to be held as cash collateral
         for the applicable Reimbursement Obligations.

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


<PAGE>   32

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

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

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

         SECTION 3.6. LETTER OF CREDIT FEE. The Borrower shall pay a fee (the
"Letter of Credit Fee") equal to the Applicable L/C Rate on the Maximum Drawing
Amount of the Letters of Credit to the Administrative Agent for the account of
the Banks, to be shared pro rata by the Banks in accordance with their
respective Commitment Percentages. The Letter of Credit Fee shall be payable
quarterly in arrears on the first day of each calendar quarter for the quarter
just ended, with the first such payment commencing January 1, 2000, and on the
Revolving Credit Maturity Date. In addition, an issuing fee (the "Issuance Fee")
with respect to each Letter of Credit to be agreed upon annually between the
Borrower and each Issuing Bank shall be payable to such Issuing Bank for its
account.

         SECTION 4.  COMPETITIVE BID LOANS.

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

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

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



<PAGE>   33

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

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

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

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

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



<PAGE>   34

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

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

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

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

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

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

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

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

         SECTION 4.5.  SUBMISSION AND CONTENTS OF COMPETITIVE BID QUOTES.  

                  (a) Each Bank may, but shall be under no obligation to, submit
         a Competitive Bid Quote containing an offer or offers to make
         Competitive Bid Loans in response to any Competitive Bid Quote Request.
         Each Competitive Bid Quote must comply with the requirements of this
         Section 4.5 and must be submitted to the Administrative Agent by telex
         or facsimile transmission at its offices as specified in or pursuant to
         Section 23 not later than (x) 2:00 p.m. (New York time) on the fourth
         Eurodollar Business Day prior to the proposed Drawdown Date, in the
         case of a LIBOR Competitive Bid Loan or (y) 10:00 a.m. (New York time)
         on the proposed Drawdown Date, in the case of an Absolute Competitive
         Bid 



<PAGE>   35


         Loan, provided that Competitive Bid Quotes may be submitted by the
         Administrative Agent in its capacity as a Bank only if it submits its
         Competitive Bid Quote to the Borrower not later than (x) one hour prior
         to the deadline for the other Banks, in the case of a LIBOR Competitive
         Bid Loan or (y) 15 minutes prior to the deadline for the other Banks,
         in the case of an Absolute Competitive Bid Loan. Subject to the
         provisions of Sections 11 and 12 hereof, any Competitive Bid Quote so
         made shall be irrevocable except with the written consent of the
         Administrative Agent given on the instructions of the Borrower.

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

                           (i)  the proposed Drawdown Date;

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

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

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

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

                           (vi) the identity of the quoting Bank.

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

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

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

                           (ii) contains qualifying, conditional or similar
                  language;

                           (iii) proposes terms other than or in addition to
                  those set forth in the applicable Invitation for Competitive
                  Bid Quotes; or


<PAGE>   36

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

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

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

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

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

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

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

         SECTION 4.8. ALLOCATION BY ADMINISTRATIVE AGENT. If offers are made by
two or more Banks with the same Competitive Bid Margin or Competitive Bid Rate,
as the case may be, for a greater aggregate principal amount than the amount in
respect of which offers are accepted for the related Interest Period, the
principal amount of Competitive Bid Loans in respect of which such offers are
accepted shall be allocated by the Administrative Agent among such Banks as




<PAGE>   37

nearly as possible (in such multiples, not less than $1,000,000, as the
Administrative Agent may deem appropriate) in proportion to the aggregate
principal amounts of such offers. Determination by the Administrative Agent of
the amounts of Competitive Bid Loans shall be conclusive in the absence of
manifest error.

         SECTION 4.9. FUNDING OF COMPETITIVE BID LOANS. If, on or prior to the
Drawdown Date of any Competitive Bid Loan, the Total Commitment has not
terminated in full and if, on such Drawdown Date, the applicable conditions of
Sections 11 and 12 hereof are satisfied, the Bank or Banks whose offers the
Borrower has accepted will fund each Competitive Bid Loan so accepted. Such Bank
or Banks will make such Competitive Bid Loans by crediting the Administrative
Agent for further credit to the Borrower's specified account with the
Administrative Agent, in immediately available funds not later than 1:00 p.m.
(New York time) on such Drawdown Date.

         SECTION 4.10. FUNDING LOSSES. If, after acceptance of any Competitive
Bid Quote pursuant to Section 4, the Borrower (i) fails to borrow any
Competitive Bid Loan so accepted on the date specified therefor, or (ii) repays
the outstanding amount of the Competitive Bid Loan prior to the last day of the
Interest Period relating thereto, the Borrower shall indemnify the Bank making
such Competitive Bid Quote or funding such Competitive Bid Loan against any loss
or expense incurred by reason of the liquidation or reemployment of deposits or
other funds acquired by such Bank to fund or maintain such unborrowed
Competitive Bid Loans, including, without limitation compensation as provided in
Section 6.7.

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

         SECTION 5.  THE TERM LOAN.  

         SECTION 5.1. CONVERSION OF REVOLVING CREDIT LOANS; THE TERM LOAN.
Subject to the terms and conditions set forth in this Agreement, including,
without limitation, the satisfaction of the conditions set forth in Section 12
hereof and the execution and delivery by the Borrower of the Term Notes to the
Banks, on the Revolving Credit Maturity Date the aggregate amount of the
outstanding Revolving Credit Loans at such date shall, at the option of the
Borrower, be converted into a Term Loan in the aggregate principal amount equal
to the aggregate outstanding principal balance of the Revolving Credit Loans on
such date, held severally by the Banks in accordance with their Commitment
Percentages and the Commitments hereunder shall terminate.



<PAGE>   38

The Term Loan outstanding after conversion shall be evidenced by the separate
Term Notes (the "Term Notes") of the Borrower payable to the order of each Bank,
each dated as of the Revolving Credit Maturity Date and in substantially the
form of Exhibit L hereto, completed with appropriate insertions. On the
Revolving Credit Maturity Date, the Borrower shall pay to the Administrative
Agent for the pro rata accounts of the Banks, all interest accrued to such date
on the Revolving Credit Loans, any Facility Fees and other fees payable to the
Administrative Agent and the Banks hereunder and, as soon as reasonably
practicable after such payment, each Bank shall surrender to the Borrower its
Revolving Credit Notes against receipt of its Term Note evidencing the amount of
the outstanding Revolving Credit Loans so converted. The term-out option granted
herein may be exercised only once (either on the Initial Maturity Date or the
extended Revolving Credit Maturity Date) and must term out all then existing
Revolving Credit Loans.

         SECTION 5.2. THE TERM NOTES. Each Term Note shall represent the
obligation of the Borrower to pay to such Bank the principal amount of the Term
Loan evidenced by the Term Note plus interest accrued thereon, as set forth
below. The Borrower irrevocably authorizes each Bank to make or cause to be made
a notation on such Bank's Term Note Record reflecting the original principal
amount of such Bank's Commitment Percentage of the Term Loan and, at or about
the time of such Bank's receipt of any principal payment on such Bank's Term
Note, an appropriate notation on such Bank's Term Note Record reflecting such
payment. The aggregate unpaid amount set forth on such Bank's Term Note Record
shall be prima facie evidence of the principal amount thereof owing and unpaid
to such Bank, but the failure to record, or any error in so recording, any such
amount on such Bank's Term Note Record shall not affect the obligations of the
Borrower hereunder or under any Term Note to make payments of principal of and
interest on any Term Note when due.

         SECTION 5.3. REPAYMENTS OF THE TERM LOAN. The Borrower promises to pay
to the Administrative Agent for the account of the Banks the principal amount of
the Term Loan on the Term Loan Maturity Date in an amount equal to the unpaid
balance of the Term Loan.

         SECTION 5.4. OPTIONAL PREPAYMENT OF TERM LOAN. The Borrower shall have
the right at any time to prepay the Term Loans on or before the Term Loan
Maturity Date, as a whole, or in part, upon not less than one (1) Business Day
prior written notice to the Administrative Agent, without premium or penalty,
provided that (a) each partial prepayment shall be in the principal amount of
$5,000,000 or an integral multiple thereof, (b) any portion of any Eurodollar
Rate Loan which has been prepaid on any day other than the last day of the
Interest Period relating thereto shall be subject to the payment by the Borrower
of any applicable costs associated with such prepayment as set forth in Section
2.11 hereof, and (c) each partial prepayment shall be allocated among the Banks,
in proportion, as nearly as practicable, to the respective outstanding amount of
each Bank's Term Note, with adjustments to the extent practicable to equalize
any prior prepayments not exactly in proportion. Any prepayment of principal of
the Term Loan shall include all interest accrued on such amount to the date of
prepayment. No amount repaid with respect to the Term Loan may be reborrowed.


<PAGE>   39

         SECTION 5.5.  INTEREST ON TERM LOAN.  

                  SECTION 5.5.1. NOTIFICATION BY BORROWER. The Borrower shall
         notify the Administrative Agent, such notice to be irrevocable, at
         least three (3) Eurodollar Business Days prior to the Drawdown Date of
         the Term Loan if all or any portion of the Term Loan is to be a
         Eurodollar Rate Loan. After the Term Loan has been made, the provisions
         of Section 2 shall apply mutatis mutandis with respect to all or any
         portion of the Term Loan so that the Borrower may have the same
         interest rate options and interest rates with respect to all or any
         portion of the Term Loan as it would be entitled to with respect to the
         Syndicated Loans.

                  SECTION 5.5.2. AMOUNTS, ETC. Any portion of the Term Loan
         which is a Eurodollar Loan relating to any Interest Period shall be in
         the amount of $5,000,000 or a whole multiple or $1,000,000 in excess
         thereof. No Interest Period relating to the Term Loan or any portion
         thereof which is a Eurodollar Loan shall extend beyond the Term Loan
         Maturity Date.

         SECTION 6.  PROVISIONS RELATING TO ALL LOANS AND LETTERS OF CREDIT.

         SECTION 6.1.  PAYMENTS.

                  (a) All payments of principal, interest, Reimbursement
         Obligations, fees (other than the Issuance Fee) and any other amounts
         due hereunder or under any of the other Loan Documents shall be made to
         the Administrative Agent at its Head Office in immediately available
         funds by 11:00 a.m. (New York time) on any due date. Subject to the
         provisions of Section 30, if a payment is received by the
         Administrative Agent at or before 1:00 p.m. (New York time) on any
         Business Day, the Administrative Agent shall on the same Business Day
         transfer in immediately available funds, as applicable, to (1) each of
         the Banks, their pro rata portion of such payment in accordance with
         their respective Commitment Percentages, in the case of payments with
         respect to Syndicated Loans, Letters of Credit and the Term Loan, (2)
         BKB in the case of payments with respect to Swing Line Loans, and (3)
         the appropriate Bank(s), in the case of payments with respect to
         Competitive Bid Loans. If such payment is received by the
         Administrative Agent after 1:00 p.m. (New York time) on any Business
         Day, such transfer shall be made by the Administrative Agent to the
         applicable Bank(s) on the next Business Day. In the event that the
         Administrative Agent fails to make such transfer to any Bank as set
         forth above, the Administrative Agent shall pay to such Bank on demand
         an amount equal to the product of (i) the average, computed for the
         period referred to in clause (iii) below, of the weighted average
         interest rate paid by such Bank for funds acquired by such Bank during
         each day included in such period, times (ii) the amount (A) equal to
         such Bank's Commitment Percentage of such payment in the case of
         payments under clause (1) above, or (B) of such payment to which such
         Bank is entitled in the case of payments with respect to Competitive
         Bid Loans and Swing Line Loans, times (iii) a fraction, the numerator
         of which is the number of days that elapse from and including the date
         of payment to and including the date on which the amount due to such
         Bank shall become immediately available to such Bank, and the
         denominator of which is 365. A statement of such Bank submitted to the
         applicable Administrative Agent with respect to any 



<PAGE>   40

         amounts owing under this paragraph shall be prima facie evidence of the
         amount due and owing to such Bank by the Administrative Agent.

                  (b) Each Bank that is not incorporated or organized under the
         laws of the United States of America or a state thereof or the District
         of Columbia (a "Non-U.S. Bank") agrees that, prior to the first date on
         which any payment is due to it hereunder, it will deliver to the
         Borrower and the Administrative Agent two duly completed copies of
         United States Internal Revenue Service Form W-8BEN or W-8ECI or
         successor applicable form, as the case may be, certifying in each case
         that such Non-U.S. Bank is entitled to receive payments under this
         Agreement and the Notes payable to it, without deduction or withholding
         of any United States federal income taxes. Each Non-U.S. Bank that so
         delivers a Form W-8BEN or W-8ECI pursuant to the preceding sentence
         further undertakes to deliver to each of the Borrower and the
         Administrative Agent two further copies of Form W-8BEN or W-8ECI or
         successor applicable form, or other manner of certification, as the
         case may be, on or before the date that any such letter or form expires
         or becomes obsolete or after the occurrence of any event requiring a
         change in the most recent form previously delivered by it to the
         Borrower, and such extensions or renewals thereof as may reasonably be
         requested by the Borrower, certifying in the case of a Form W-8BEN or
         W-8ECI that such Non-U.S. Bank is entitled to receive payments under
         this Agreement and the Notes without deduction or withholding of any
         United States federal income taxes, unless in any such case an event
         (including, without limitation, any change in treaty, law or
         regulation) has occurred prior to the date on which any such delivery
         would otherwise be required which renders all such forms inapplicable
         or which would prevent such Non-U.S. Bank from duly completing and
         delivering any such form with respect to it and such Non-U.S. Bank
         advises the Borrower that it is not capable of receiving payments
         without any deduction or withholding of United States federal income
         tax.

                  (c) The Borrower shall not be required to pay any additional
         amounts to any Non-U.S. Bank in respect of United States Federal
         withholding tax pursuant to Section 18 to the extent that (i) the
         obligation to withhold amounts with respect to United States Federal
         withholding tax existed on the date such Non-U.S. Bank became a party
         to this Agreement or, with respect to payments to a different lending
         office designated by the Non-U.S. Bank as its applicable lending office
         (a "New Lending Office"), the date such Non-U.S. Bank designated such
         New Lending Office with respect to a Loan; provided, however, that this
         clause (i) shall not apply to any transferee or New Lending Office as a
         result of an assignment, transfer or designation made at the request of
         the Borrower; and provided further, however, that this clause (i) shall
         not apply to the extent the indemnity payment or additional amounts any
         transferee, or Bank through a New Lending Office, would be entitled to
         receive without regard to this clause (i) do not exceed the indemnity
         payment or additional amounts that the Person making the assignment or
         transfer to such transferee, or Bank making the designation of such New
         Lending Office, would have been entitled to receive in the absence of
         such assignment, transfer or designation; or (ii) the obligation to pay
         such additional amounts would not have arisen but for a failure by such
         Non-U.S. Bank to comply with the provisions of paragraph (b) above.


<PAGE>   41

                  (d) Notwithstanding the foregoing, each Bank agrees to use
         reasonable efforts (consistent with legal and regulatory restrictions)
         to change its lending office to avoid or to minimize any amounts
         otherwise payable under Section 18 in each case solely if such change
         can be made in a manner so that such Bank, in its sole determination,
         suffers no legal, economic or regulatory disadvantage.

         SECTION 6.2. COMPUTATIONS. Except as otherwise expressly provided
herein, all computations of interest, Facility Fees, Letter of Credit Fees or
other fees shall be based on a 360-day year and paid for the actual number of
days elapsed, except that computations based on the Base Rate shall be based on
a 365 or 366, as applicable, day year and paid for the actual number of days
elapsed. Whenever a payment hereunder or under any of the other Loan Documents
becomes due on a day that is not a Business Day, the due date for such payment
shall be extended to the next succeeding Business Day, and interest shall accrue
during such extension; provided that for any Interest Period for any Eurodollar
Loan if such next succeeding Business Day falls in the next succeeding calendar
month or after the Revolving Credit Maturity Date, or Term Loan Maturity Date,
as the case may be, it shall be deemed to end on the next preceding Business
Day.

         SECTION 6.3. ILLEGALITY; INABILITY TO DETERMINE EURODOLLAR RATE.
Notwithstanding any other provision of this Agreement (other than Section 6.9),
if (a) the introduction of, any change in, or any change in the interpretation
of, any law or regulation applicable to any Bank or the Administrative Agent
shall make it unlawful, or any central bank or other governmental authority
having jurisdiction thereof shall assert that it is unlawful, for any Bank or
the Administrative Agent to perform its obligations in respect of any Eurodollar
Loans, or (b) if any Bank or the Administrative Agent, as applicable, shall
reasonably determine with respect to Eurodollar Loans that (i) by reason of
circumstances affecting any Eurodollar interbank market, adequate and reasonable
methods do not exist for ascertaining the Eurodollar Rate which would otherwise
be applicable during any Interest Period, or (ii) deposits of Dollars in the
relevant amount for the relevant Interest Period are not available to such Bank
or the Administrative Agent in any Eurodollar interbank market, or (iii) the
Eurodollar Rate does not or will not accurately reflect the cost to the Bank or
the Administrative Agent of obtaining or maintaining the Eurodollar Loans during
any Interest Period, then such Bank or the Administrative Agent shall promptly
give telephonic, telex or cable notice of such determination to the Borrower
(which notice shall be conclusive and binding upon the Borrower). Upon such
notification by the Bank or the Administrative Agent, the obligation of the
Banks and the Administrative Agent to make Eurodollar Loans shall be suspended
until the Banks or the Administrative Agent, as the case may be, determine that
such circumstances no longer exist, and to the extent permitted by law the
outstanding Eurodollar Loans shall continue to bear interest at the applicable
rate based on the Eurodollar Rate until the end of the applicable Interest
Period, and thereafter shall be deemed converted to Base Rate Loans in equal
principal amounts to such former Eurodollar Loans.

         SECTION 6.4. ADDITIONAL COSTS, ETC. If any present or future applicable
law (which expression, as used herein, includes statutes, rules and regulations
thereunder and interpretations thereof by any competent court or by any
governmental or other regulatory body or official charged with the
administration or the interpretation thereof and requests, directives,
instructions and notices at any time or from time to time hereafter made upon or
otherwise issued to any Bank by any 


<PAGE>   42

central bank or other fiscal, monetary or other authority, whether or not having
the force of law) shall:

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

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

                  (c) except as provided in Section 6.5 or as otherwise
         reflected in the Base Rate, the Eurodollar Rate, or the applicable rate
         for Competitive Bid Loans, impose or increase or render applicable
         (other than to the extent specifically provided for elsewhere in this
         Agreement) any special deposit, reserve, assessment, liquidity, capital
         adequacy or other similar requirements (whether or not having the force
         of law) against assets held by, or deposits in or for the account of,
         or loans by, or commitments of, an office of any Bank with respect to
         this Agreement, the other Loan Documents, such Bank's Commitment or the
         Loans; or

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

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

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

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

                  then, and in each such case, the Borrower will, upon demand
         made by such Bank at any time and from time to time as often as the
         occasion therefore may arise (which demand shall be accompanied by a
         statement setting forth the basis of such demand which shall be
         conclusive absent manifest error), pay such reasonable additional
         amounts 



<PAGE>   43

         as will be sufficient to compensate such Bank for such additional
         costs, reduction, payment or foregone interest or other sum.

         SECTION 6.5. CAPITAL ADEQUACY. If any Bank shall have determined that,
after the date hereof, (i) the adoption of any applicable law, rule or
regulation regarding capital adequacy, or any change in any such law, rule, or
regulation, or any change in the interpretation or administration thereof by any
governmental authority, central bank or comparable agency charged with the
interpretation or administration thereof, or any request or directive regarding
capital adequacy (whether or not having the force of law) of any such authority,
central bank or comparable agency, or (ii) compliance by such Bank or the
Administrative Agent or any corporation controlling such Bank or the
Administrative Agent with any law, governmental rule, regulation, policy,
guideline or directive (whether or not having the force of law and including any
determination by such central bank or other governmental authority that for
purposes of capital adequacy requirements the Commitments hereunder do not
constitute commitments with an original maturity of one year or less) of any
such entity regarding capital adequacy, has or would have the effect of reducing
the rate of return on capital of such Bank (or any corporation controlling such
Bank) as a consequence of such Bank's obligations hereunder to a level below
that which such Bank (or any corporation controlling such Bank) could have
achieved but for such adoption, change, request or directive (taking into
consideration its policies with respect to capital adequacy) by an amount deemed
by such Bank to be material, then from time to time, within 15 days after demand
by such Bank, the Borrower shall pay to such Bank such additional amount or
amounts as will, in such Bank's reasonable determination, fairly compensate such
Bank (or any corporation controlling such Bank) for such reduction. Each Bank
shall allocate such cost increases among its customers in good faith and on an
equitable basis.

         SECTION 6.6. CERTIFICATE. A certificate setting forth the additional
amounts payable pursuant to Section 6.4 or Section 6.5 and a reasonable
explanation of such amounts which are due, submitted by any Bank to the
Borrower, shall be conclusive, absent manifest error, that such amounts are due
and owing.

         SECTION 6.7. EURODOLLAR AND COMPETITIVE BID INDEMNITY. The Borrower
agrees to indemnify the Banks and the Administrative Agent and to hold them
harmless from and against any reasonable loss, cost or expense that any such
Bank and the Administrative Agent may sustain or incur as a consequence of (a)
the default by the Borrower in payment of the principal amount of or any
interest on any Eurodollar Loans or Competitive Bid Loans as and when due and
payable, including any such loss or expense arising from interest or fees
payable by any Bank or the Administrative Agent to lenders of funds obtained by
it in order to maintain its Eurodollar Loans or Competitive Bid Loans, (b) the
default by the Borrower in making a borrowing of a Eurodollar Loan or
Competitive Bid Loan or conversion of a Eurodollar Loan or a prepayment of a
Eurodollar or Competitive Bid Loan other than pursuant to Section 2.5(b) after
the Borrower has given (or is deemed to have given) a Syndicated Loan Request, a
notice pursuant to Section 2.7 or a Notice of Acceptance/Rejection of
Competitive Bid Quote(s), or a notice pursuant to Section 2.11, and (c) the
making of any payment of a Eurodollar Loan or Competitive Bid Loan, or the
making of any conversion of any Eurodollar Loan to a Base Rate Loan on a day
that is not the last day of the applicable Interest Period with respect thereto.
Such loss, cost, or reasonable expense shall include an amount equal to the
excess, if any, as reasonably determined by each Bank of (i) its


<PAGE>   44

cost of obtaining the funds for (A) the Eurodollar Loan being paid, prepaid,
converted, not converted, reallocated, or not borrowed, as the case may be
(based on the Eurodollar Rate), or (B) the Competitive Bid Loan being paid,
prepaid, or not borrowed, as the case may be (based on the applicable interest
rate) for the period from the date of such payment, prepayment, conversion, or
failure to borrow or convert, as the case may be, to the last day of the
Interest Period for such Loan (or, in the case of a failure to borrow, the
Interest Period for the Loan which would have commenced on the date of such
failure to borrow) over (ii) the amount of interest (as reasonably determined by
such Bank) that would be realized by such Bank in reemploying the funds so paid,
prepaid, converted, or not borrowed, converted, or prepaid for such period or
Interest Period, as the case may be, which determinations shall be conclusive
absent manifest error.

         SECTION 6.8. INTEREST ON OVERDUE AMOUNTS. Overdue principal and (to the
extent permitted by applicable law) interest on the Loans and all other overdue
amounts payable hereunder or under any of the other Loan Documents shall bear
interest compounded monthly and payable on demand at a rate per annum equal to
the Base Rate plus 2%, until such amount shall be paid in full (after as well as
before judgment).

         SECTION 6.9. INTEREST LIMITATION. Notwithstanding any other term of
this Agreement or the Notes, any other Loan Document or any other document
referred to herein or therein, the maximum amount of interest which may be
charged to or collected from any Person liable hereunder or under the Notes by
any Bank shall be absolutely limited to, and shall in no event exceed, the
maximum amount of interest which could lawfully be charged or collected by such
Bank under applicable laws (including, to the extent applicable, the provisions
of Section 5197 of the Revised Statutes of the United States of America, as
amended, and 12 U.S.C. Section 85, as amended).

         SECTION 6.10. REASONABLE EFFORTS TO MITIGATE. Each Bank agrees that as
promptly as practicable after it becomes aware of the occurrence of an event or
the existence of a condition that would cause it to be affected under Sections
6.3, 6.4 or 6.5, such Bank will give notice thereof to the Borrower, with a copy
to the Administrative Agent and, to the extent so requested by the Borrower and
not inconsistent with such Bank's internal policies, such Bank shall use
reasonable efforts and take such actions as are reasonably appropriate if as a
result thereof the additional moneys which would otherwise be required to be
paid to such Bank pursuant to such sections would be materially reduced, or the
illegality or other adverse circumstances which would otherwise require a
conversion of such Loans or result in the inability to make such Loans pursuant
to such sections would cease to exist, and in each case if, as determined by
such Bank in its sole discretion, the taking of such actions would not adversely
affect such Loans or such Bank or otherwise be disadvantageous to such Bank.

         SECTION 6.11. REPLACEMENT OF BANKS. If any Bank (an "Affected Bank")
(i) makes demand upon the Borrower for (or if the Borrower is otherwise required
to pay) amounts pursuant to Sections 6.4 or 6.5, (ii) is unable to make or
maintain Eurodollar Loans as a result of a condition described in Section 6.3,
(iii) defaults in its obligation to make Loans or to participate in Letters of
Credit in accordance with the terms of this Agreement (such Bank being referred
to as a "Defaulting Bank") or (iv) fails to agree to extend the Revolving Credit
Maturity Date pursuant to Section 2.10, the Borrower may, within 90 days of
receipt of such demand, notice (or the occurrence



<PAGE>   45

of such other event causing the Borrower to be required to pay such
compensation or causing Section 6.3 to be applicable), or default, as the case
may be, by notice (a "Replacement Notice") in writing to the Administrative
Agent and such Affected Bank (A) request the Affected Bank to cooperate with the
Borrower in obtaining a replacement bank satisfactory to the Administrative
Agent and the Borrower (the "Replacement Bank") as provided herein, but none of
such Banks shall be under an obligation to find a Replacement Bank; (B) request
the non-Affected Banks to acquire and assume all of the Affected Bank's Loans
and Commitment, and to participate in Letters of Credit as provided herein, but
none of such Banks shall be under an obligation to do so; or (C) designate a
Replacement Bank reasonably satisfactory to the Administrative Agent. If any
satisfactory Replacement Bank shall be obtained, and/or any of the non-Affected
Banks shall agree to acquire and assume all of the Affected Bank's Loans and
Commitment, and to participate in Letters of Credit then such Affected Bank
shall, so long as no Event of Default shall have occurred and be continuing,
assign, in accordance with Section 21, all of its Commitment, Loans, Notes and
other rights and obligations under this Agreement and all other Loan Documents
to such Replacement Bank or non-Affected Banks, as the case may be, in exchange
for payment of the principal amount so assigned and all interest and fees
accrued on the amount so assigned, plus all other Obligations then due and
payable to the Affected Bank; provided, however, that (x) such assignment shall
be without recourse, representation or warranty and shall be on terms and
conditions reasonably satisfactory to such Affected Bank and such Replacement
Bank and/or non-Affected Banks, as the case may be, and (y) prior to any such
assignment, the Borrower shall have paid to such Affected Bank all amounts
properly demanded and unreimbursed under Sections 6.4, 6.5 and 6.7. Upon the
effective date of such assignment, the Borrower shall issue replacement Notes to
such Replacement Bank and/or non-Affected Banks, as the case may be, and such
Replacement Bank shall become a "Bank" for all purposes under this Agreement and
the other Loan Documents.

         SECTION 6.12. ADVANCES BY ADMINISTRATIVE AGENT. The Administrative
Agent may (unless earlier notified to the contrary by any Bank by 12:00 noon
(New York time) one (1) Business Day prior to any Drawdown Date) assume that
each Bank has made available (or will before the end of such Business Day make
available) to the Administrative Agent the amount of such Bank's Commitment
Percentage with respect to the Loans (or, in the case of Competitive Bid Loans,
the amount of such Bank's accepted offers of such Loans, if any) to be made on
such Drawdown Date, and the Administrative Agent may (but shall not be required
to), in reliance upon such assumption, make available to the Borrower a
corresponding amount. If any Bank makes such amount available to the
Administrative Agent on a date after such Drawdown Date, such Bank shall pay the
Administrative Agent on demand an amount equal to the product of (i) the
average, computed for the period referred to in clause (iii) below, of the
weighted average annual interest rate paid by the Administrative Agent for
federal funds acquired by the Administrative Agent during each day included in
such period times (ii) the amount equal to such Bank's Commitment Percentage of
such Syndicated Loan (or, in the case of Competitive Bid Loans and Swing Line
Loans, the amount of such Bank's accepted offer of such Competitive Bid Loans,
if any, and portion of such Swing Line Loans) or the Term Loan, as the case may
be, times (iii) a fraction, the numerator of which is the number of days that
elapse from and including such Drawdown Date to but not including the date on
which the amount equal to such Bank's Commitment Percentage of such Loans, or
the amount of such Bank's accepted offers of such Competitive Bid Loans, if any,
and portion of Swing Line Loans, shall become immediately



<PAGE>   46

available to the Administrative Agent, and the denominator of which is 365. A
statement of the Administrative Agent submitted to such Bank with respect to any
amounts owing under this paragraph shall be prima facie evidence of the amount
due and owing to the Administrative Agent by such Bank. If such amount is not in
fact made available to the Administrative Agent by such Bank within three (3)
Business Days of such Drawdown Date, the Administrative Agent shall be entitled
to recover such amount from such Borrower, with interest thereon at the
applicable rate per annum.

         SECTION 7. REPRESENTATIONS AND WARRANTIES. The Borrower (and the
Guarantor, where applicable) represents and warrants to the Banks that:

         SECTION 7.1. CORPORATE AUTHORITY.

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

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

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


<PAGE>   47

         SECTION 7.2. GOVERNMENTAL AND OTHER APPROVALS. The execution, delivery
and performance of the Loan Documents by the Borrower and the Guarantor and the
consummation by the Borrower and the Guarantor of the transactions contemplated
hereby and thereby do not require any approval or consent of, or filing with,
any governmental agency or authority or other third party other than those
already obtained and those required after the date hereof in connection with the
Borrower's and its Subsidiaries' performance of their covenants contained in
Sections 8, 9 and 10 hereof.

         SECTION 7.3. TITLE TO PROPERTIES; LEASES. The Borrower and its
Subsidiaries own all of the assets reflected in the consolidated balance sheet
as at the Interim Balance Sheet Date or acquired since that date (except
property and assets operated under capital leases or sold or otherwise disposed
of in the ordinary course of business since that date), subject to no mortgages,
Capitalized Leases, conditional sales agreements, title retention agreements,
liens or other encumbrances except Permitted Liens.

         SECTION 7.4. FINANCIAL STATEMENTS; SOLVENCY.

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

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

         SECTION 7.5. NO MATERIAL CHANGES, ETC. Since the Interim Balance Sheet
Date, there have occurred no material adverse changes in the consolidated
financial condition, business, assets or liabilities (contingent or otherwise)
of the Borrower and its Subsidiaries, taken together, as shown on or reflected
in the consolidated balance sheets of the Borrower and its Subsidiaries as at
the Interim Balance Sheet Date, or the consolidated statements of income for the
period then 



<PAGE>   48

ended other than changes in the ordinary course of business which have not had
any material adverse effect either individually or in the aggregate on the
financial condition, business, assets or liabilities (contingent or otherwise)
of the Borrower and its Subsidiaries, taken together. Since the Interim Balance
Sheet Date, there have not been any Distributions other than as permitted by
Section 9.5 hereof.

         SECTION 7.6. FRANCHISES, PATENTS, COPYRIGHTS, ETC. The Borrower and
each of its Subsidiaries possess all franchises, patents, copyrights,
trademarks, trade names, licenses and permits, and rights in respect of the
foregoing, adequate for the conduct of their business substantially as now
conducted (other than those the absence of which would not have a material
adverse effect on the business, operations or financial condition of the
Borrower and its Subsidiaries as a whole) without known conflict with any rights
of others other than a conflict which would not have a material adverse effect
on the financial condition, business or assets of the Borrower and its
Subsidiaries as a whole.

         SECTION 7.7. LITIGATION. Except as set forth on Schedule 7.7 or in the
Disclosure Documents, there are no actions, suits, proceedings or investigations
of any kind pending or, to the knowledge of the Borrower or any of its
Subsidiaries, threatened against the Borrower or any of its Subsidiaries before
any court, tribunal or administrative agency or board which, either in any case
or in the aggregate, could reasonably be expected to have a material adverse
effect on the financial condition, business, or assets of the Borrower and its
Subsidiaries, considered as a whole, or materially impair the right of the
Borrower and its Subsidiaries, considered as a whole, to carry on business
substantially as now conducted, or result in any substantial liability not
adequately covered by insurance, or for which adequate reserves are not
maintained on the consolidated balance sheet or which question the validity of
any of the Loan Documents to which the Borrower or any of its Subsidiaries is a
party, or any action taken or to be taken pursuant hereto or thereto.

         SECTION 7.8. NO MATERIALLY ADVERSE CONTRACTS, ETC. Neither the Borrower
nor any of its Subsidiaries is subject to any charter, corporate or other legal
restriction, or any judgment, decree, order, rule or regulation which in the
judgment of the Borrower's or such Subsidiary's officers has or could reasonably
be expected in the future to have a materially adverse effect on the business,
assets or financial condition of the Borrower and its Subsidiaries, considered
as a whole. Neither the Borrower nor any of its Subsidiaries is a party to any
contract or agreement which in the judgment of the Borrower's or its
Subsidiary's officers has or could reasonably be expected to have any materially
adverse effect on the financial condition, business or assets of the Borrower
and its Subsidiaries, considered as a whole, except as otherwise reflected in
adequate reserves as required by GAAP.

         SECTION 7.9. COMPLIANCE WITH OTHER INSTRUMENTS, LAWS, ETC. Neither the
Borrower nor any of its Subsidiaries is (a) violating any provision of its
charter documents or by-laws or (b) violating any agreement or instrument to
which any of them may be subject or by which any of them or any of their
properties may be bound or any decree, order, judgment, or any statute, license,
rule or regulation, in a manner which could (in the case of such agreements or
such instruments) reasonably be expected to result in the imposition of
substantial penalties or 


<PAGE>   49

materially and adversely affect the financial condition, business or assets of
the Borrower and its Subsidiaries, considered as a whole.

         SECTION 7.10. TAX STATUS. The Borrower and its Subsidiaries have filed
all federal, state, provincial and territorial income and all other tax returns,
reports and declarations (or obtained extensions with respect thereto) required
by applicable law to be filed by them (unless and only to the extent that the
Borrower or such Subsidiary has set aside on its books provisions reasonably
adequate for the payment of all unpaid and unreported taxes as required by
GAAP); and have paid all taxes and other governmental assessments and charges
(other than taxes, assessments and other governmental charges imposed by
jurisdictions other than the United States, Canada or any political subdivision
thereof which in the aggregate are not material to the financial condition,
business or assets of the Borrower or such Subsidiary on an individual basis or
of the Borrower and its Subsidiaries on a consolidated basis) that are material
in amount, shown or determined to be due on such returns, reports and
declarations, except those being contested in good faith; and, as required by
GAAP, have set aside on their books provisions reasonably adequate for the
payment of all taxes for periods subsequent to the periods to which such
returns, reports or declarations apply. Except to the extent contested in the
manner permitted in the preceding sentence, there are no unpaid taxes in any
material amount claimed by the taxing authority of any jurisdiction to be due
and owing by the Borrower or any Subsidiary, nor do the officers of the Borrower
or any of its Subsidiaries know of any basis for any such claim.

         SECTION 7.11. NO EVENT OF DEFAULT. (a) No Default or Event of Default
has occurred hereunder and is continuing, and (b) no "Default" or "Event of
Default" (as defined in the Revolving Credit Facility or the European Credit
Facilities, respectively) under the Revolving Credit Facility or the European
Credit Facilities, respectively, has occurred and is continuing, or would be
created by the incurrence of Indebtedness under this Agreement.

         SECTION 7.12. HOLDING COMPANY AND INVESTMENT COMPANY ACTS. Neither the
Borrower nor any of its Subsidiaries is a "holding company", or a "subsidiary
company" of a "holding company", or an "affiliate" of a "holding company", as
such terms are defined in the Public Utility Holding Company Act of 1935; nor is
any of them a "registered investment company", or an "affiliated company" or a
"principal underwriter" of a "registered investment company", as such terms are
defined in the Investment Company Act of 1940.

         SECTION 7.13. ABSENCE OF FINANCING STATEMENTS, ETC. Except as permitted
by Section 9.2 of this Agreement, there is no Indebtedness senior to the
Obligations, and there is no effective financing statement, security agreement,
chattel mortgage, real estate mortgage or other document filed or recorded with
any filing records, registry, or other public office, which purports to cover,
affect or give notice of any present or possible future lien on, or security
interest in, any assets or property of the Borrower or any of its Subsidiaries
or right thereunder.

         SECTION 7.14.  EMPLOYEE BENEFIT PLANS.  

                  SECTION 7.14.1. IN GENERAL. Each Employee Benefit Plan has
         been maintained and operated in compliance in all material respects
         with the provisions of ERISA and/or all Applicable Canadian Pension
         Legislation, as applicable, and, to the extent applicable, the 



<PAGE>   50

         Code, including but not limited to the provisions thereunder respecting
         prohibited transactions. Promptly upon the request of any Bank or the
         Administrative Agent, the Borrower will furnish to the Administrative
         Agent the most recently completed annual report, Form 5500, with all
         required attachments, and actuarial statement required to be submitted
         under Section 103(d) of ERISA, with respect to each Guaranteed Pension
         Plan.

                  SECTION 7.14.2. TERMINABILITY OF WELFARE PLANS. Under each
         Employee Benefit Plan which is an employee welfare benefit plan within
         the meaning of Section 3(1) or Section 3(2)(B) of ERISA, no benefits
         are due unless the event giving rise to the benefit entitlement occurs
         prior to plan termination (except as required by Title I, Part 6 of
         ERISA) . The Borrower or an ERISA Affiliate, as appropriate, may
         terminate each such Plan at any time (or at any time subsequent to the
         expiration of any applicable bargaining agreement) in the discretion of
         the Borrower or such ERISA Affiliate without liability to any Person.

                  SECTION 7.14.3. GUARANTEED PENSION PLANS. Each contribution
         required to be made to a Guaranteed Pension Plan, whether required to
         be made to avoid the incurrence of an accumulated funding deficiency,
         the notice or lien provisions of Section 302(f) of ERISA, or otherwise,
         has been timely made. No waiver of an accumulated funding deficiency or
         extension of amortization periods has been received with respect to any
         Guaranteed Pension Plan. No liability to the PBGC (other than required
         insurance premiums, all of which have been paid) has been incurred by
         the Borrower or any ERISA Affiliate with respect to any Guaranteed
         Pension Plan (other than Terminated Plans) and there has not been any
         ERISA Reportable Event, or any other event or condition which presents
         a material risk of termination of any Guaranteed Pension Plan by the
         PBGC. Other than with respect to the Terminated Plans, based on the
         latest valuation of each Guaranteed Pension Plan (which in each case
         occurred within twelve months of the date of this representation), and
         on the actuarial methods and assumptions employed for that valuation,
         the aggregate benefit liabilities of all such Guaranteed Pension Plans
         within the meaning of Section 4001 of ERISA did not exceed the
         aggregate value of the assets of all such Guaranteed Pension Plans,
         disregarding for this purpose the benefit liabilities and assets of any
         Guaranteed Pension Plan with assets in excess of benefit liabilities.

                  SECTION 7.14.4. MULTIEMPLOYER PLANS. Neither the Borrower nor
         any ERISA Affiliate has incurred any material liability (including
         secondary liability) to any Multiemployer Plan as a result of a
         complete or partial withdrawal from such Multiemployer Plan under
         Section 4201 of ERISA or as a result of a sale of assets described in
         Section 4204 of ERISA. Neither the Borrower nor any ERISA Affiliate has
         been notified that any Multiemployer Plan is in reorganization or
         insolvent under and within the meaning of Section 4241 or Section 4245
         of ERISA or that any Multiemployer Plan intends to terminate or has
         been terminated under Section 4041A of ERISA.

         SECTION 7.15. ENVIRONMENTAL COMPLIANCE. The Borrower and its
Subsidiaries have taken all necessary steps to investigate the past and present
condition and usage of the Real Property and the operations conducted by the
Borrower and its Subsidiaries and, based upon such diligent investigation, have
determined that, except as set forth on Schedule 7.15 or in the Disclosure
Documents:


<PAGE>   51

                  (a) Neither the Borrower, its Subsidiaries, nor any operator
         of their properties, is in violation, or alleged violation, of any
         judgment, decree, order, law, permit, license, rule or regulation
         pertaining to environmental matters, including without limitation,
         those arising under the Resource Conservation and Recovery Act
         ("RCRA"), the Comprehensive Environmental Response, Compensation and
         Liability Act of 1980 as amended ("CERCLA"), the Superfund Amendments
         and Reauthorization Act of 1986 ("SARA"), the Federal Clean Water Act,
         the Federal Clean Air Act, the Toxic Substances Control Act, or any
         applicable international, federal, state, provincial, territorial or
         local statute, regulation, ordinance, order or decree relating to
         health, safety, waste transportation or disposal, or the environment
         (the "Environmental Laws"), which violation, individually or in the
         aggregate, would have a material adverse effect on the business, assets
         or financial condition of the Borrower and its Subsidiaries on a
         consolidated basis.

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

                  (c) (i) No portion of the Real Property or other assets of the
         Borrower and its Subsidiaries has been used for the handling,
         processing, storage or disposal of Hazardous Substances except in
         accordance with applicable Environmental Laws, except as would not
         reasonably be expected to have a material adverse effect on the
         business, assets or financial condition of the Borrower and its
         Subsidiaries on a consolidated basis; (ii) in the course of any
         activities conducted by the Borrower, its Subsidiaries, or operators of
         the Real Property or other assets of the Borrower and its Subsidiaries,
         no Hazardous Substances have been generated or are being used on such
         properties except in accordance with applicable Environmental Laws,
         except for occurrences that would not have a material adverse effect on
         the business, assets or financial condition of the



<PAGE>   52

         Borrower and its Subsidiaries on a consolidated basis; (iii) there have
         been no unpermitted Releases or threatened Releases of Hazardous
         Substances on, upon, into or from the Real Property or other assets of
         the Borrower or its Subsidiaries, which Releases would have a material
         adverse effect on the value of such properties; (iv) to the best of the
         Borrower's and its Subsidiaries' knowledge, there have been no Releases
         on, upon, from or into any real property in the vicinity of the Real
         Property or other assets of the Borrower or its Subsidiaries which,
         through soil or groundwater contamination, may have come to be located
         on, and which would reasonably be expected to have a material adverse
         effect on the value of, such properties; and (v) in addition, any
         Hazardous Substances that have been generated on the Real Property or
         other assets of the Borrower or its Subsidiaries have been transported
         offsite only by carriers having an identification number issued by the
         EPA, treated or disposed of only by treatment or disposal facilities
         maintaining valid permits as required under applicable Environmental
         Laws, which transporters and facilities have been and are, to the best
         of the Borrower's and its Subsidiaries' knowledge, operating in
         compliance with such permits and applicable Environmental Laws.

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

         SECTION 7.16. TRUE COPIES OF CHARTER AND OTHER DOCUMENTS. Each of the
Borrower and the Guarantor has furnished the Administrative Agent as of the
Effective Date, true and complete copies of (a) all charter and other
incorporation documents (together with any amendments thereto) and (b) by-laws
(together with any amendments thereto).

         SECTION 7.17. DISCLOSURE. No representation or warranty made by the
Borrower or the Guarantor in this Agreement or in any agreement, instrument,
document, certificate, statement or letter furnished to the Banks or the
Administrative Agent by or on behalf of or at the request of the Borrower and
the Guarantor in connection with any of the transactions contemplated by the
Loan Documents contains any untrue statement of a material fact or omits to
state a material fact necessary in order to make the statements contained
therein not misleading in light of the circumstances in which they are made.

         SECTION 7.18. PERMITS AND GOVERNMENTAL AUTHORITY. All permits (other
than those the absence of which would not have a material adverse effect on the
business, operations or financial condition of the Borrower and its Subsidiaries
as a whole) required for the construction and operation of all landfills
currently owned or operated by the Borrower or any of its Subsidiaries have been
obtained and remain in full force and effect and are not subject to any appeals
or further proceedings or to any unsatisfied conditions that may allow material
modification or revocation. Neither the Borrower nor any of its Subsidiaries,
nor, to the knowledge of the Borrower and its Subsidiaries, the holder of such
permits is in violation of any such permits, except for any violation which
would not have a material adverse effect on the business, operations or
financial condition of the Borrower and its Subsidiaries as a whole.


<PAGE>   53

         SECTION 7.19. YEAR 2000 COMPLIANCE. The Borrower and its Subsidiaries
have (i) reviewed the areas within their businesses and operations which could
be adversely affected by failure to become "Year 2000 Compliant" (i.e. that
computer applications, imbedded microchips and other systems used by the
Borrower or any of its Subsidiaries or any of their material vendors or
customers, will be able properly to recognize and perform properly
date-sensitive functions involving certain dates prior to and any date after
December 31, 1999), (ii) developed a detailed plan and timetable to become Year
2000 Compliant in a timely manner, and (iii) committed adequate resources to
support the Year 2000 plan of the Borrower and its Subsidiaries. Based upon such
review, the Borrower reasonably believes that the Borrower and its Subsidiaries,
as well as their material vendors and customers, will become "Year 2000
Compliant" in a timely manner except to the extent that failure to do so will
not have any materially adverse effect on the business or financial condition of
the Borrower or any of its Subsidiaries.

         SECTION 7.20. USE OF PROCEEDS. The proceeds of the Loans shall be used
for general corporate purposes.

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

         SECTION 8.1. PUNCTUAL PAYMENT. The Borrower will duly and punctually
pay or cause to be paid the principal and interest on the Loans, all
Reimbursement Obligations, fees and other amounts provided for in this Agreement
and the other Loan Documents, all in accordance with the terms of this Agreement
and such other Loan Documents.

         SECTION 8.2. MAINTENANCE OF U.S. OFFICE. The Borrower will maintain its
chief executive offices at Houston, Texas, or at such other place in the United
States of America as the Borrower shall designate upon 30 days' prior written
notice to the Administrative Agent.

         SECTION 8.3. RECORDS AND ACCOUNTS. The Borrower will, and will cause
each of its Subsidiaries to, keep true and accurate records and books of account
in which full, true and correct entries will be made in accordance with GAAP and
with the requirements of all regulatory authorities and maintain adequate
accounts and reserves for all taxes (including income taxes), depreciation,
depletion, obsolescence and amortization of its properties, all other
contingencies, and all other proper reserves.

         SECTION 8.4. FINANCIAL STATEMENTS, CERTIFICATES AND INFORMATION. The
Borrower will deliver to the Banks:

                  (a) as soon as practicable, but, in any event not later than
         92 days after the end of each fiscal year of the Borrower, the
         consolidated balance sheet of the Borrower and its Subsidiaries as at
         the end of such year, consolidated statements of cash flows, and the
         related consolidated statements of operations, each setting forth in
         comparative form the figures for the previous fiscal year, all such
         consolidated financial statements to be in



<PAGE>   54

         reasonable detail, prepared, in accordance with GAAP and, with respect
         to the consolidated financial statements, certified by
         PricewaterhouseCoopers LLP or Arthur Andersen LLP or by other
         independent auditors selected by the Borrower and reasonably
         satisfactory to the Banks (the "Accountants"). In addition,
         simultaneously therewith, the Borrower shall provide the Banks with a
         written statement from such Accountants to the effect that they have
         read a copy of this Agreement, and that, in making the examination
         necessary to said certification, they have obtained no knowledge of any
         Default or Event of Default, or, if such Accountants shall have
         obtained knowledge of any then existing Default or Event of Default
         they shall disclose in such statement any such Default or Event of
         Default;

                  (b) as soon as practicable, but in any event not later than 47
         days after the end of each of the first three fiscal quarters of each
         fiscal year of the Borrower, copies of the consolidated balance sheet
         and statement of operations of the Borrower and its Subsidiaries as at
         the end of such quarter, subject to year-end adjustments, and the
         related consolidated statement of cash flows, all in reasonable detail
         and prepared in accordance with GAAP (to the extent GAAP is applicable
         to interim unaudited financial statements) with a certification by the
         principal financial or accounting officer of the Borrower (the "CFO or
         the CAO") that the consolidated financial statements are prepared in
         accordance with GAAP (to the extent GAAP is applicable to interim
         unaudited financial statements) and fairly present the consolidated
         financial condition of the Borrower and its Subsidiaries on a
         consolidated basis as at the close of business on the date thereof and
         the results of operations for the period then ended, it being
         understood that no such statement need be accompanied by complete
         footnotes;

                  (c) simultaneously with the delivery of the financial
         statements referred to in (a) and (b) above, a certificate in the form
         of Exhibit F hereto (the "Compliance Certificate") signed by the CFO or
         the CAO or the Borrower's corporate treasurer, stating that the
         Borrower and its Subsidiaries are in compliance with the covenants
         contained in Sections 8, 9 and 10 hereof as of the end of the
         applicable period and setting forth in reasonable detail computations
         evidencing such compliance with respect to the covenants contained in
         Sections 9.1(d), 9.3, 9.4, 9.5, and 10 hereof and that no Default or
         Event of Default exists, provided that if the Borrower shall at the
         time of issuance of such Compliance Certificate or at any other time
         obtain knowledge of any Default or Event of Default, the Borrower shall
         include in such certificate or otherwise deliver forthwith to the Banks
         a certificate specifying the nature and period of existence thereof and
         what action the Borrower proposes to take with respect thereto;

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

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

         The Borrower hereby authorizes each Bank to disclose any information
obtained pursuant to this Agreement to all appropriate governmental regulatory
authorities where required 



<PAGE>   55

by law; provided, however, this authorization shall not be deemed to be a waiver
of any rights to object to the disclosure by the Banks of any such information
which the Borrower has or may have under the federal Right to Financial Privacy
Act of 1978, as in effect from time to time, except as to matters specifically
permitted therein.

         SECTION 8.5. EXISTENCE AND CONDUCT OF BUSINESS. The Borrower will, and
will cause each Subsidiary, to do or cause to be done all things necessary to
preserve and keep in full force and effect its existence, rights and franchises;
and effect and maintain its foreign qualifications (except where the failure of
the Borrower or any Subsidiary to remain so qualified would not materially
adversely impair the financial condition, business or assets of the Borrower and
its Subsidiaries on a consolidated basis), licensing, domestication or
authorization except as terminated by its Board of Directors in the exercise of
its reasonable judgment; provided that such termination would not have a
material adverse effect on the financial condition, business or assets of the
Borrower and its Subsidiaries on a consolidated basis. The Borrower will not,
and will cause its Subsidiaries not to, become obligated under any contract or
binding arrangement which, at the time it was entered into, would materially
adversely impair the financial condition, business or assets of the Borrower and
its Subsidiaries, on a consolidated basis. The Borrower will, and will cause
each Subsidiary to, continue to engage primarily in the businesses now conducted
by it and in related businesses.

         SECTION 8.6. MAINTENANCE OF PROPERTIES. The Borrower will, and will
cause its Subsidiaries to, cause all material properties used or useful in the
conduct of their businesses to be maintained and kept in good condition, repair
and working order (ordinary wear and tear excepted) and supplied with all
necessary equipment and cause to be made all necessary repairs, renewals,
replacements, betterments and improvements thereof, all as in the judgment of
the Borrower and its Subsidiaries may be necessary so that the businesses
carried on in connection therewith may be properly and advantageously conducted
at all times; provided, however, that nothing in this section shall prevent the
Borrower or any of its Subsidiaries from discontinuing the operation and
maintenance of any of its properties if such discontinuance is, in the judgment
of the Borrower or such Subsidiary, desirable in the conduct of its or their
business and which does not in the aggregate materially adversely affect the
financial condition, business or assets of the Borrower and its Subsidiaries on
a consolidated basis.

         SECTION 8.7. INSURANCE. The Borrower will, and will cause its
Subsidiaries to, maintain with financially sound and reputable insurance
companies, funds or underwriters, insurance of the kinds, covering the risks
(other than risks arising out of or in any way connected with personal liability
of any officers and directors thereof) and in the relative proportionate amounts
usually carried by reasonable and prudent companies conducting businesses
similar to that of the Borrower and its Subsidiaries, in amounts substantially
similar to the existing coverage policies maintained by the Borrower and its
Subsidiaries, copies of which have been provided to the Administrative Agent. In
addition, the Borrower will furnish from time to time, upon any Bank's request,
a summary of the insurance coverage of the Borrower and its Subsidiaries, which
summary shall be in form and substance satisfactory to the Banks and, if
requested by any of the Banks, will furnish to the Administrative Agent and such
Bank copies of the applicable policies.


<PAGE>   56

         SECTION 8.8. TAXES. The Borrower will, and will cause its Subsidiaries
to, duly pay and discharge, or cause to be paid and discharged, before the same
shall become overdue, all taxes, assessments and other governmental charges
(other than taxes, assessments and other governmental charges imposed by
jurisdictions other than the United States, Canada or any political subdivision
thereof, which in the aggregate are not material to the business, financial
conditions, or assets of the Borrower and its Subsidiaries on a consolidated
basis) imposed upon it and its real properties, sales and activities, or any
part thereof, or upon the income or profits therefrom, as well as all claims for
labor, materials, or supplies, which if unpaid might by law become a lien or
charge upon any of its property; provided, however, that any such tax,
assessment, charge, levy or claim need not be paid if the validity or amount
thereof shall currently be contested in good faith by appropriate proceedings
and if the Borrower or such Subsidiary shall have set aside on its books
adequate reserves with respect thereto as required by GAAP; and provided,
further, that the Borrower or such Subsidiary will pay all such taxes,
assessments, charges, levies or claims forthwith upon the commencement of
proceedings to foreclose any lien which may have attached as security therefor.

         SECTION 8.9. INSPECTION OF PROPERTIES, BOOKS AND CONTRACTS. The
Borrower will, and will cause its Subsidiaries to, permit the Administrative
Agent or any Bank or any of their designated representatives, upon reasonable
notice, to visit and inspect any of the properties of the Borrower and its
Subsidiaries, to examine the books of account of the Borrower and its
Subsidiaries, or contracts (and to make copies thereof and extracts therefrom),
and to discuss the affairs, finances and accounts of the Borrower and its
Subsidiaries with, and to be advised as to the same by, their officers, all at
such times and intervals as may be reasonably requested.

         SECTION 8.10. COMPLIANCE WITH LAWS, CONTRACTS, LICENSES AND PERMITS;
MAINTENANCE OF MATERIAL LICENSES AND PERMITS. The Borrower will, and will cause
each Subsidiary to, (i) comply with the provisions of its charter documents and
by-laws; (ii) comply in all material respects with all agreements and
instruments by which it or any of its properties may be bound; (iii) comply with
all applicable laws and regulations (including Environmental Laws), decrees,
orders, judgments, licenses and permits, including, without limitation, all
environmental permits ("Applicable Requirements"), except where noncompliance
with such Applicable Requirements would not reasonably be expected to have a
material adverse effect in the aggregate on the consolidated financial
condition, properties or businesses of the Borrower and its Subsidiaries; (iv)
maintain all material operating permits for all landfills now owned or hereafter
acquired; and (v) dispose of hazardous waste only at licensed disposal
facilities operating, to the best of the Borrower's or such Subsidiary's
knowledge after reasonable inquiry, in compliance with Environmental Laws. If at
any time any authorization, consent, approval, permit or license from any
officer, agency or instrumentality of any government shall become necessary or
required in order that the Borrower or any Subsidiary may fulfill any of its
obligations hereunder or under any other Loan Document, the Borrower will
immediately take or cause to be taken all reasonable steps within the power of
the Borrower or such Subsidiary to obtain such authorization, consent, approval,
permit or license and furnish the Banks with evidence thereof.

         SECTION 8.11. ENVIRONMENTAL INDEMNIFICATION. The Borrower covenants and
agrees that it will indemnify and hold the Banks, the Issuing Banks and the
Administrative Agent and their respective affiliates, and each of the
representatives, agents and officers of each of the foregoing,



<PAGE>   57

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

         SECTION 8.12. FURTHER ASSURANCES. The Borrower and the Guarantor will
cooperate with the Administrative Agent and execute such further instruments and
documents as the Administrative Agent shall reasonably request to carry out to
the Banks' satisfaction the transactions contemplated by this Agreement.

         SECTION 8.13. NOTICE OF POTENTIAL CLAIMS OR LITIGATION. The Borrower
shall deliver to the Banks, within 30 days of receipt thereof, written notice of
the initiation of any action, claim, complaint, or any other notice of dispute
or potential litigation against the Borrower or any of its Subsidiaries wherein
the potential liability is in excess of $25,000,000 or which questions the
validity or enforceability of any Loan Document, together with a copy of each
such complaint or other notice received by the Borrower or any of its
Subsidiaries if requested by the Administrative Agent.

         SECTION 8.14. NOTICE OF CERTAIN EVENTS CONCERNING INSURANCE AND
ENVIRONMENTAL CLAIMS.

                  (a) The Borrower will provide the Banks with written notice as
         to any material cancellation or material adverse change in any
         insurance of the Borrower or any of its Subsidiaries within ten (10)
         Business Days after the Borrower's or any of its Subsidiary's receipt
         of any notice (whether formal or informal) of such material
         cancellation or material change by any of its insurers.

                  (b) The Borrower will promptly, and in any event within ten
         (10) Business Days of the Borrower's obtaining knowledge thereof,
         notify the Banks in writing of any of the following events:

                           (i) upon the Borrower's or any Subsidiary's obtaining
                  knowledge of any violation of any Environmental Law regarding
                  the Real Property or the Borrower's or any Subsidiary's
                  operations which violation could have a material adverse
                  effect on the business, financial condition, or assets of the
                  Borrower and its Subsidiaries on a consolidated basis;

                           (ii) upon the Borrower's or any Subsidiary's
                  obtaining knowledge of any potential or known Release, or
                  threat of Release, of any Hazardous Substance at, from, or
                  into the Real Property which could materially affect the
                  business, 



<PAGE>   58

                  financial condition, or assets of the Borrower and its
                  Subsidiaries on a consolidated basis;

                           (iii) upon the Borrower's or any Subsidiary's receipt
                  of any notice of any material violation of any Environmental
                  Law or of any Release or threatened Release of Hazardous
                  Substances, including a notice or claim of liability or
                  potential responsibility from any third party (including any
                  federal, state, provincial, territorial or local governmental
                  officials) and including notice of any formal inquiry,
                  proceeding, demand, investigation or other action with regard
                  to (A) the Borrower's, any Subsidiary's or any Person's
                  operation of the Real Property, (B) contamination on, from, or
                  into the Real Property, or (C) investigation or remediation of
                  offsite locations at which the Borrower, any Subsidiary, or
                  its predecessors are alleged to have directly or indirectly
                  Disposed of Hazardous Substances, and with respect to which
                  the liability associated therewith could be reasonably
                  expected to exceed $30,000,000; or

                           (iv) upon the Borrower's or any Subsidiary's
                  obtaining knowledge that any expense or loss which
                  individually or in the aggregate exceeds $30,000,000 has been
                  incurred by such governmental authority in connection with the
                  assessment, containment, removal or remediation of any
                  Hazardous Substances with respect to which the Borrower or any
                  Subsidiary may be liable or for which a lien may be imposed on
                  the Real Property.

         SECTION 8.15. NOTICE OF DEFAULT. The Borrower will promptly notify the
Banks in writing of the occurrence of any Default or Event of Default. If any
Person shall give any notice or take any other action in respect of a claimed
default (whether or not constituting an Event of Default) under this Agreement
or any other note, evidence of indebtedness, indenture or other obligation
evidencing indebtedness in excess of $25,000,000 as to which the Borrower or any
of its Subsidiaries is a party or obligor, whether as principal or surety, the
Borrower shall forthwith upon obtaining actual knowledge thereof give written
notice thereof to the Banks, describing the notice of action and the nature of
the claimed default.

         SECTION 8.16. USE OF PROCEEDS.

                  (a) GENERALLY: The proceeds of the Loans shall be used for
         general corporate purposes. No proceeds of the Loans shall be used in
         any way that will violate Regulations U or X of the Board of Governors
         of the Federal Reserve System.

                  (b) INELIGIBLE SECURITIES: No portion of the proceeds of any
         Loan is to be used, and no portion of any Letter of Credit is to be
         obtained, for the purpose of (i) knowingly purchasing, or providing
         credit support for the purchase of, Ineligible Securities from a
         Section 20 Subsidiary during any period in which such Section 20
         Subsidiary makes a market in such Ineligible Securities, (ii) knowingly
         purchasing, or providing credit support for the purchase of, during the
         underwriting or placement period, any Ineligible Securities being
         underwritten or privately placed by a Section 20 Subsidiary, or (iii)
         making, or providing credit support for the making of, payments of
         principal or interest on Ineligible Securities underwritten or
         privately placed by a Section 


<PAGE>   59

         20 Subsidiary and issued by or for the benefit of the Borrower or any
         Subsidiary or other affiliate of the Borrower.

         SECTION 8.17. CERTAIN TRANSACTIONS. Except as disclosed in the
Disclosure Documents prior to the Effective Date, and except for arm's length
transactions pursuant to which the Borrower or any Subsidiary makes payments in
the ordinary course of business upon terms no less favorable than the Borrower
or such Subsidiary could obtain from third parties, none of the officers,
directors, or employees or any other affiliate of the Borrower or any Subsidiary
are presently or shall be a party to any transaction with the Borrower or any
Subsidiary (other than for services as employees, officers and directors),
including any contract, agreement or other arrangement providing for the
furnishing of services to or by, providing for rental of real or personal
property to or from, or otherwise requiring payments to or from any officer,
director or such employee or, to the knowledge of the Borrower or any
Subsidiary, any corporation, partnership, trust or other entity in which any
officer, director, or any such employee has a substantial interest or is an
officer, director, trustee or partner.

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

         SECTION 9.1. RESTRICTIONS ON INDEBTEDNESS. Neither the Borrower nor any
of its Subsidiaries shall become or be a guarantor or surety of, or otherwise
create, incur, assume, or be or remain liable, contingently or otherwise, with
respect to any Indebtedness, or become or be responsible in any manner (whether
by agreement to purchase any obligations, stock, assets, goods or services, or
to supply or advance any funds, assets, goods or services or otherwise) with
respect to any Indebtedness of any other Person, or incur any Indebtedness other
than:

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

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

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

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

                  (d) (i) Indebtedness of the Borrower's Subsidiaries (other
         than of the Guarantor incurred prior to July 16, 1998), (ii) secured
         Indebtedness of the Borrower, 


<PAGE>   60

         (iii) Indebtedness with respect to drawn landfill closure bonds of the
         Borrower's Subsidiaries (other than of the Guarantor), and (iv)
         Indebtedness with respect to Permitted Receivables Transactions (other
         than of the Guarantor); provided that the aggregate amount of all such
         Indebtedness in this Section 9.1(d) shall not exceed 15% of
         Consolidated Tangible Assets at any time;

                  (e) Indebtedness of the Guarantor listed in Schedule 9.1(e) on
         the terms and conditions existing on July 16, 1998, provided that any
         extension, renewal or refinancing by the Guarantor of such Indebtedness
         is prohibited unless the amount of such extended, renewed or refinanced
         Indebtedness by the Guarantor is deducted from Indebtedness allowed
         under Section 9.1(d) above; and

                  (f) Indebtedness of the Borrower and certain of its
         Subsidiaries under the Revolving Credit Facility and the European
         Credit Facilities.

         SECTION 9.2. RESTRICTIONS ON LIENS. The Borrower will not, and will
cause its Subsidiaries not to, create or incur or suffer to be created or
incurred or to exist any lien, encumbrance, mortgage, pledge, charge,
restriction or other security interest of any kind upon any property or assets
of any character, whether now owned or hereafter acquired, or upon the income or
profits therefrom; or transfer any of such property or assets or the income or
profits therefrom for the purpose of subjecting the same to the payment of
Indebtedness or performance of any other obligation in priority to payment of
its general creditors; or acquire, or agree or have an option to acquire, any
property or assets upon conditional sale or other title retention or purchase
money security agreement, device or arrangement; or suffer to exist for a period
of more than 30 days after the same shall have been incurred any Indebtedness or
claim or demand against it which if unpaid might by law or upon bankruptcy or
insolvency, or otherwise, be given any priority whatsoever over its general
creditors; or sell, assign, pledge or otherwise transfer any accounts, contract
rights, general intangibles or chattel paper, with or without recourse, except
as follows (the "Permitted Liens"):

                  (a) Liens existing on the Effective Date and listed on
         Schedule 9.2(a) hereto;

                  (b) Liens securing Indebtedness permitted by Section 9.1(b)(i)
         hereof; provided that the assets subject to such liens and security
         interests shall be limited to those contracts to which such guaranty,
         suretyship or indemnification obligations relate and the rights to
         payment thereunder;

                  (c) Liens securing Indebtedness permitted under Sections
         9.1(d) and (e) (provided that Liens created pursuant to a Permitted
         Receivables Transaction are only on the receivables (and related
         contract rights, general intangibles, and chattel paper) so transferred
         and securing only the obligations with respect thereto);

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


<PAGE>   61

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

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

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

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

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

         SECTION 9.3. RESTRICTIONS ON INVESTMENTS. Except to the extent provided
in Section 9.4, neither the Borrower nor any Subsidiary may make or permit to
exist or to remain outstanding any 


<PAGE>   62

Investment, unless both before and after giving effect thereto (i) the Borrower
and its Subsidiaries are in compliance with the covenants set forth in Sections
8, 9 and 10 hereof; (ii) there does not exist a Default or Event of Default and
no Default or Event of Default would be created by the making of such
Investment; and (iii) the aggregate amount of all Investments (excluding
Investments in (A) direct obligations of the United States of America or any
agency thereof having maturities of less than one (1) year, (B) certificates of
deposit having maturities of less than one (1) year, issued by commercial banks
in the United States or Canada having capital and surplus of not less than
$100,000,000, and (C) wholly owned Subsidiaries) does not exceed 10% of
Consolidated Tangible Assets; provided, that the ability of the Borrower and its
Subsidiaries to incur any Indebtedness in connection with any Investment
permitted by this Section 9.3 shall be governed by Section 9.1.

         SECTION 9.4.  MERGERS, CONSOLIDATIONS, SALES.  

                  (a) Neither the Borrower nor any Subsidiary shall be a party
         to any merger, consolidation or exchange of stock unless the Borrower
         shall be the surviving entity with respect to any such transaction to
         which the Borrower is a party and the Guarantor shall be the survivor
         of any merger with any other Subsidiary or a Subsidiary shall be the
         surviving entity (and continue to be a Subsidiary) with respect to any
         such transactions to which one or more Subsidiaries is a party (and the
         conditions set forth below are satisfied), or purchase or otherwise
         acquire all or substantially all of the assets or stock of any class
         of, or any partnership, membership or joint venture or other interest
         in, any other Person except as otherwise provided in Section 9.3 or
         this Section 9.4. Notwithstanding the foregoing, the Borrower and its
         Subsidiaries may purchase or otherwise acquire all or substantially all
         of the assets or stock of any class of, or joint venture or other
         interest in, any Person if the following conditions have been met: (i)
         the proposed transaction will not otherwise create a Default or an
         Event of Default hereunder; (ii) the business to be acquired
         predominantly involves (A) the collection, transfer, hauling, disposal
         or recycling of solid waste (excluding hazardous waste as that term is
         defined in RCRA) or thermal soil remediation, or (B) other lines of
         businesses currently engaged in, including (1) on-site portable
         sanitation services, (2) industrial cleaning services, (3) chemical
         waste treatment, storage, disposal and related services, (4) on-site
         integrated hazardous waste management services, including hazardous
         waste identification, packaging, removal, and recycling services, (5)
         radioactive waste management services, (6) development and operation of
         waste-to-energy facilities and related services, (7) the treatment and
         management of biosolids, (8) design and installation of air pollution
         control systems and equipment, or (9) environmental and infrastructure
         consulting and related services, provided that revenues from operations
         with respect to items (3), (4) and (5) shall not exceed ten percent
         (10%) of consolidated revenues without the consent of the Majority
         Banks; (iii) the business to be acquired operates predominantly (A) in
         North America or (B) outside North America, provided, that the
         aggregate amount of such acquisitions under this clause (B) does not
         exceed fifteen percent (15%) of Consolidated Tangible Assets; and (iv)
         the board of directors and (if required by applicable law) the
         shareholders, or the equivalent thereof, of the business to be acquired
         has approved such acquisition. Notwithstanding anything herein to the
         contrary, the ability of the Borrower 


<PAGE>   63

         and its Subsidiaries to incur any Indebtedness in connection with any
         transaction permitted pursuant to this Section 9.4 shall be governed by
         Section 9.1.

                  (b) Neither the Borrower nor any Subsidiary shall sell,
         transfer, convey or lease any assets or group of assets including the
         sale or transfer of any property owned by the Borrower or any
         Subsidiary in order then or thereafter to lease such property or lease
         other property which the Borrower or such Subsidiary intends to use for
         substantially the same purpose as the property being sold or
         transferred (except (1) transfers of real or personal property among
         Subsidiaries of the Borrower which are wholly owned by the Borrower,
         (2) Regulatory Dispositions, (3) Strategic Dispositions, (4) Allied
         Waste Transactions, and (5) so long as no Default or Event of Default
         has occurred and is continuing, or would result therefrom, sales of
         assets in the ordinary course of business in any calendar year with an
         aggregate value not greater than $50,000,000), or sell or assign, with
         or without recourse, any receivables (except accounts receivable (and
         contract rights, general intangibles or chattel paper related thereto)
         more than sixty (60) days past due sold or assigned in the ordinary
         course of collecting past due accounts, or pursuant to a Permitted
         Receivables Transaction).

                  (c) Commencing with the Effective Date, at any time when the
         aggregate Net Cash Proceeds from all Domestic Strategic Dispositions
         not previously applied or set aside for application under this Section
         9.4(c) exceeds $25,000,000 in the aggregate, then all such Net Cash
         Proceeds (including the first $25,000,000) received by the Borrower or
         any Subsidiary from Domestic Strategic Dispositions shall be applied
         within five (5) Business Days to pay down the Existing Domestic Bank
         Debt on a pro rata basis as set forth in the following table (with
         concurrent permanent reduction in the lenders commitments to advance
         funds or provide credit hereunder and thereunder of not less than
         eighty percent (80%) of the amount of such pay down), with the
         remainder of such Net Cash Proceeds to be available for share
         repurchases (subject to Section 9.5 below), and for other general
         corporate purposes (including acquisitions):

<TABLE>
<CAPTION>
--------------------------------------------------------------------------------------------------------------------------
                            Cumulative Net Cash Proceeds              % Required to Repay       % Available for Share
                                                                    Existing Domestic Bank            Repurchase
                                                                             Debt
--------------------------------------------------------------------------------------------------------------------------
<S>                 <C>                                            <C>                          <C>
     Tier I         Greater than or equal to $0 and less than or             100%                         0%
                               equal to $1,500,000,000
--------------------------------------------------------------------------------------------------------------------------
     Tier II        Greater than $1,500,000,000 and less than or              50%                        50%
                               equal to $2,500,000,000
--------------------------------------------------------------------------------------------------------------------------
    Tier III        Greater than $2,500,000,000 and less than or              0%                         100%
                               equal to $5,000,000,000
--------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   64

         provided that in the event that the Senior Public Debt Rating is rated
         less than BBB- by Standard & Poor's AND less than Baa3 by Moody's, Tier
         III shall be adjusted such that 20% of Net Cash Proceeds are required
         to repay Existing Domestic Bank Debt and 80% of Net Cash Proceeds will
         be available for share repurchases. The Borrower shall promptly provide
         a monthly report to the Administrative Agent in the form of Exhibit M
         hereto (the "Form of Net Cash Proceeds Certificate") of Net Cash
         Proceeds from all Domestic Strategic Dispositions for the month, and
         demonstrating compliance with the conditions set forth above.

                  (d) Net Cash Proceeds from any European Strategic Dispositions
         shall be used first to permanently pay down the European Credit
         Facilities (and concurrent permanent reduction of the commitments of
         the lenders to advance funds or provide credit thereunder by the amount
         of such pay down), with any surplus to be treated as if such surplus
         were Net Cash Proceeds from a Domestic Strategic Disposition in
         accordance with subsection (c) above. The Borrower shall promptly
         provide a monthly report to the Administrative Agent in the form of
         Exhibit M hereto of Net Cash Proceeds from all European Strategic
         Dispositions for the month, and demonstrating compliance with the
         conditions set forth above.

         SECTION 9.5. RESTRICTED DISTRIBUTIONS AND REDEMPTIONS. Neither the
Borrower nor any of its Subsidiaries will (a) declare or pay any Distributions,
or (b) redeem, convert, retire or otherwise acquire shares of any class of its
capital stock (other than in connection with a merger permitted by Section 9.4
hereof or conversion into another form of equity of any preferred shares of the
Borrower existing as of the Effective Date pursuant to the terms thereof);
provided that, so long as no Default or Event of Default exists or would be
created hereunder, the Borrower and its Subsidiaries may (i) pay cash dividends
and redeem stock in an aggregate amount not to exceed Net Cash Proceeds from
Strategic Dispositions available for share repurchase in accordance with the
table set forth above in Section 9.4(c), provided further that, giving effect to
the proposed share repurchase on a proforma basis as if the transaction occurred
as of the last day of the prior fiscal quarter, the Borrower (x) shall have cash
equivalents plus Existing Domestic Bank Debt Availability of at least
$1,000,000,000, (y) the ratio of Total Debt to EBITDA for the most recently
ended period of four fiscal quarters shall not exceed 2.75:1 and (z) the
European Credit Facilities shall have been paid in full; and (ii) pay common
dividends in an amount not to exceed $25,000,000 per year. Notwithstanding the
above, any Subsidiary may make Distributions to the Borrower and the Borrower
agrees that neither the Borrower nor any Material Subsidiary will enter into any
agreement restricting Distributions from such Material Subsidiary to the
Borrower.

         SECTION 9.6. EMPLOYEE BENEFIT PLANS. None of the Borrower, any of its
Subsidiaries, or any ERISA Affiliate will:

                  (a) engage in any "prohibited transaction" within the meaning
         of Section 406 of ERISA or Section 4975 of the Code which could result
         in a material liability for the Borrower on a consolidated basis; or


<PAGE>   65

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

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

                  (d) permit or take any action which would result in the
         aggregate benefit liabilities (within the meaning of Section 4001 of
         ERISA), other than with respect to the Terminated Plans, of all
         Guaranteed Pension Plans exceeding the value of the aggregate assets of
         such Plans, disregarding for this purpose the benefit liabilities and
         assets of any such Plan with assets in excess of benefit liabilities;
         or

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

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

         SECTION 10. FINANCIAL COVENANTS OF THE BORROWER. The Borrower agrees
that, so long as any Obligation or Letter of Credit is outstanding or the Banks
have any obligation to make Loans, or any Issuing Bank has any obligation to
issue, extend or renew any Letter of Credit hereunder, or the Banks have any
obligation to reimburse any Issuing Bank for drawings honored under any Letter
of Credit, it shall, and shall cause its Subsidiaries to, comply with the
following covenants:

         SECTION 10.1. INTEREST COVERAGE RATIO. As of the end of any fiscal
quarter of the Borrower, the Borrower will not permit the ratio of (a) EBIT for
the four fiscal quarters then ending to (b) Consolidated Total Interest Expense
for such period to be less than the applicable ratio set forth in the table
below:

<TABLE>
<CAPTION>
         ---------------------------------------------------------------------------------
         FISCAL QUARTERS ENDING:                                 RATIO:
         ---------------------------------------------------------------------------------
<S>                                                         <C>
         December 31, 1999 - September 30, 2000                      2.75:1.00
         ---------------------------------------------------------------------------------
         December 31, 2000 and thereafter                            3.00:1.00
         ---------------------------------------------------------------------------------
</TABLE>


<PAGE>   66

         SECTION 10.2. TOTAL DEBT TO EBITDA. As of the end of any fiscal quarter
of the Borrower, the Borrower will not permit the ratio of (a) Total Debt to (b)
EBITDA for the four fiscal quarters then ending to exceed the applicable ratio
set forth in the table below:

<TABLE>
<CAPTION>
         ---------------------------------------------------------------------------------
         FISCAL QUARTERS ENDING:                            RATIO:
         ---------------------------------------------------------------------------------
<S>                                                    <C> 
         December 31, 1999 - June 30, 2000                            3.25:1.00
         ---------------------------------------------------------------------------------
         September 30, 2000 and thereafter                            3.00:1.00
         ---------------------------------------------------------------------------------
</TABLE>

         SECTION 10.3. MINIMUM NET WORTH. The Borrower will not permit
Consolidated Net Worth at any time to be less than $3,500,000,000, plus 75% of
cumulative positive Consolidated Net Income for each fiscal quarter, beginning
with the fourth fiscal quarter of 1999, minus any share repurchases permitted
pursuant to Section 9.5 hereof.

         SECTION 11. CONDITIONS PRECEDENT.

         SECTION 11.1. CONDITIONS TO EFFECTIVENESS. The effectiveness of this
Agreement and the obligations of the Banks to make any Loans and of any Issuing
Bank to issue Letters of Credit and of the Banks to participate in Letters of
Credit and otherwise be bound by the terms of this Agreement shall be subject to
the satisfaction of each of the following conditions precedent:

                  SECTION 11.1.1. CORPORATE ACTION. All corporate action
         necessary for the valid execution, delivery and performance by the
         Borrower and the Guarantor of the Loan Documents shall have been duly
         and effectively taken, and evidence thereof certified by authorized
         officers of the Borrower and the Guarantor and satisfactory to the
         Banks shall have been provided to the Banks.

                  SECTION 11.1.2. LOAN DOCUMENTS, ETC. Each of the Loan
         Documents and other documents listed on the closing agenda shall have
         been duly and properly authorized, executed and delivered by the
         respective parties thereto and shall be in full force and effect in a
         form satisfactory to the Majority Banks.

                  SECTION 11.1.3. CERTIFIED COPIES OF CHARTER DOCUMENTS. The
         Banks shall have received from each of the Borrower and the Guarantor a
         certificate, certified by a duly authorized officer of such Person to
         be true and complete on the Effective Date, of (a) no changes (other
         than those attached thereto) to its charter or other incorporation
         documents since last delivered to the Administrative Agent, and (b) no
         changes to its by-laws (other than those attached thereto) since last
         delivered to the Administrative Agent.

                  SECTION 11.1.4. INCUMBENCY CERTIFICATE. The Banks shall have
         received an incumbency certificate, dated as of the Effective Date,
         signed by duly authorized officers of the Borrower and the Guarantor
         giving the name and bearing a specimen signature of each individual who
         shall be authorized: (a) to sign the Loan Documents on behalf of the
         Borrower and the Guarantor; (b) to make Syndicated Loan Requests and
         Letter of Credit 



<PAGE>   67

         Requests; (c) to make Competitive Bid Quote Requests; and (d) to give
         notices and to take other action on the Borrower's or the Guarantor's
         behalf under the Loan Documents.

                  SECTION 11.1.5. CERTIFICATES OF INSURANCE. The Banks shall
         have received (i) a certificate of insurance from an independent
         insurance broker dated as of the Effective Date, or within 15 days
         prior thereto, identifying insurers, types of insurance, insurance
         limits, and policy terms, and otherwise describing the insurance
         obtained in accordance with the provisions of the Loan Documents and
         (ii) copies of all policies evidencing such insurance (or certificates
         therefor signed by the insurer or an agent authorized to bind the
         insurer).

                  SECTION 11.1.6. OPINION OF COUNSEL. The Banks shall have
         received a favorable legal opinion from outside counsel to the Borrower
         and the Guarantor addressed to the Banks, dated the Effective Date, in
         form and substance satisfactory to the Administrative Agent.

                  SECTION 11.1.7. SATISFACTORY FINANCIAL CONDITION. Other than
         as disclosed in the Disclosure Documents, no material adverse change,
         in the judgment of the Majority Banks, shall have occurred in the
         financial condition, results of operations, business, properties or
         prospects of the Borrower and its Subsidiaries, taken as a whole, since
         the Interim Balance Sheet Date.

                  SECTION 11.1.8. PAYMENT OF AMENDMENT FEES. For each Bank which
         executed and delivered its facsimile signature pages by 5:00 p.m. on
         December 15, 1999, the Borrower shall have paid the agreed upon
         amendment fee of 0.125% on each such Bank's Commitment to the
         Administrative Agent for the account of such Banks.

                  SECTION 11.1.9. AMENDMENTS TO EXISTING DEBT. The
         Administrative Agent shall have received evidence, in form and
         substance satisfactory to the Administrative Agent, that the Revolving
         Credit Facility is concurrently becoming effective in a form and
         substance satisfactory to the Administrative Agent, MGT and the Joint
         Lead Arrangers and Joint Book Managers, and no "Event of Default",
         "Default" (each as defined in such agreement) or prepayment event shall
         exist under such agreement and no liens shall be created under such
         agreement as a result of the transactions contemplated hereby.

         SECTION 12. CONDITIONS TO ALL LOANS. The obligations of the Banks to
make any Loan and the obligation of any Issuing Bank to issue, extend, or renew
any Letter of Credit at the time of and subsequent to the Effective Date is
subject to the following conditions precedent:

         SECTION 12.1. REPRESENTATIONS TRUE. Each of the representations and
warranties of the Borrower and the Guarantor (as applicable) contained in this
Agreement or in any document or instrument delivered pursuant to or in
connection with this Agreement shall be true as of the date as of which they
were made and shall also be true at and as of the time of the making of such
Loan or the issuance, extension, or renewal of any Letter of Credit, as
applicable, with the same effect as if made at and as of that time (except to
the extent of changes resulting from transactions contemplated or permitted by
this Agreement and changes occurring in the ordinary course of business which
singly or in the aggregate are not materially adverse to the business, 




<PAGE>   68

assets or financial condition of the Borrower and its Subsidiaries as a whole,
and to the extent that such representations and warranties relate expressly and
solely to an earlier date).

         SECTION 12.2. PERFORMANCE; NO EVENT OF DEFAULT. The Borrower shall have
performed and complied with all terms and conditions herein required to be
performed or complied with by it prior to or at the time of the making of any
Loan the issuance, extension or renewal of any Letter of Credit, and at the time
of the making of any Loan or the issuance, renewal or extension of any Letter of
Credit, there shall exist no Default or Event of Default or condition which
would result in a Default or an Event of Default upon consummation of such Loan
or issuance, extension, or renewal of any Letter of Credit, as applicable. Each
request for a Loan, or for issuance, extension or renewal of a Letter of Credit
shall constitute certification by the Borrower that the conditions specified in
Sections 12.1 and 12.2 will be duly satisfied on the date of such Loan or Letter
of Credit issuance, extension or renewal.

         SECTION 12.3. NO LEGAL IMPEDIMENT. No change shall have occurred in any
law or regulations thereunder or interpretations thereof which in the reasonable
opinion of the Banks would make it illegal for the Banks to make Loans, for any
Issuing Bank to issue, extend or renew, or the Banks to participate in, Letters
of Credit hereunder.

         SECTION 12.4. GOVERNMENTAL REGULATION. The Banks shall have received
from the Borrower and its Subsidiaries such statements in substance and form
reasonably satisfactory to the Banks as they shall require for the purpose of
compliance with any applicable regulations of the Comptroller of the Currency or
the Board of Governors of the Federal Reserve System or the Office of the
Superintendent of Financial Institutions.

         SECTION 12.5. PROCEEDINGS AND DOCUMENTS. All proceedings in connection
with the transactions contemplated by this Agreement and all documents incident
thereto shall have been delivered to the Banks as of the date of the making of
any extension of credit in substance and in form satisfactory to the Banks,
including without limitation a Syndicated Loan Request in the form attached
hereto as Exhibit D or a Letter of Credit Request in the form of Exhibit E and
the Banks shall have received all information and such counterpart originals or
certified or other copies of such documents as the Banks may reasonably request.

         SECTION 13. EVENTS OF DEFAULT; ACCELERATION; TERMINATION OF COMMITMENT.

         SECTION 13.1. EVENTS OF DEFAULT AND ACCELERATION. If any of the
following events ("Events of Default" or, if the giving of notice or the lapse
of time or both is required, then, prior to such notice and/or lapse of time,
"Defaults") shall occur:

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

                  (b) if the Borrower shall fail to pay any interest or fees or
         other amounts owing hereunder (other than those specified in subsection
         (a) above) within five (5) Business Days after the same shall become
         due and payable whether at the Revolving 



<PAGE>   69

         Credit Maturity Date, Term Loan Maturity Date or any accelerated date
         of maturity or at any other date fixed for payment;

                  (c) if the Borrower shall fail to comply with any of the
         covenants contained in Sections 8, 9 and 10 hereof;

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

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

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

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

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


<PAGE>   70

                  (i) if there shall remain in force, undischarged, unsatisfied
         and unstayed, for more than thirty days, whether or not consecutive,
         any final judgment against the Borrower or any Subsidiary which, with
         other outstanding final judgments against the Borrower and its
         Subsidiaries exceeds in the aggregate $25,000,000 after taking into
         account any undisputed insurance coverage;

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

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

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

then, and in any such event, so long as the same may be continuing, the
Administrative Agent may, and upon the request of the Majority Banks shall, by
notice in writing to the Borrower, declare all amounts owing with respect to
this Agreement, the Notes and the other Loan Documents and all Reimbursement
Obligations to be, and they shall thereupon forthwith become, immediately due
and payable without presentment, demand, protest, notice of intent to
accelerate, notice of acceleration to the extent permitted by law or other
notice of any kind, all of which are hereby expressly waived by the Borrower;
provided that in the event of any Event of Default specified in Section 13.1(g)
or 13.1(h), all such amounts shall become immediately due and



<PAGE>   71

payable automatically and without any requirement of notice from the
Administrative Agent or any Bank. Upon demand by the Majority Banks after the
occurrence of any Event of Default, the Borrower shall immediately provide to
the Administrative Agent cash in an amount equal to the aggregate Maximum
Drawing Amount to be held by the Administrative Agent as collateral security for
the Reimbursement Obligations.

         SECTION 13.2. TERMINATION OF COMMITMENTS. If any Event of Default
pursuant to Sections 13.1(g) or 13.1(h) hereof shall occur, any unused
portion of the Total Commitment hereunder shall forthwith terminate and the
Banks and the Issuing Banks shall be relieved of all obligations to make Loans
or to issue, extend or renew Letters of Credit hereunder; or if any other Event
of Default shall occur, the Majority Banks may by notice to the Borrower
terminate the unused portion of the Total Commitment hereunder, and, upon such
notice being given, such unused portion of the Total Commitment hereunder shall
terminate immediately and the Banks and the Issuing Banks shall be relieved of
all further obligations to make Loans or to issue, extend or renew Letters of
Credit hereunder. No termination of any portion of the Total Commitment
hereunder shall relieve the Borrower of any of its existing Obligations to the
Banks, the Issuing Banks or the Administrative Agent hereunder or elsewhere.

         SECTION 13.3. REMEDIES. In case any one or more of the Events of
Default shall have occurred and be continuing, and whether or not the Banks
shall have accelerated the maturity of the Loans and other Obligations pursuant
to Section 13.1, each Bank, upon notice to the other Banks, if owed any amount
with respect to the Loans or the Reimbursement Obligations, may proceed to
protect and enforce its rights by suit in equity, action at law or other
appropriate proceeding, whether for the specific performance of any covenant or
agreement contained in this Agreement and the other Loan Documents or any
instrument pursuant to which the Obligations to such Bank are evidenced,
including, without limitation, as permitted by applicable law the obtaining of
the ex parte appointment of a receiver, and, if such amount shall have become
due, by declaration or otherwise, proceed to enforce the payment thereof or any
legal or equitable right of such Bank, any recovery being subject to the terms
of Section 30 hereof. No remedy herein conferred upon any Bank or the
Administrative Agent or the holder of any Note is intended to be exclusive of
any other remedy and each and every remedy shall be cumulative and shall be in
addition to every other remedy given hereunder or now or hereafter existing at
law or in equity or by statute or any other provision of law.

         SECTION 14. SETOFF. Regardless of the adequacy of any collateral,
during the continuance of an Event of Default, any deposits or other sums
credited by or due from any Bank to the Borrower and any securities or other
property of the Borrower in the possession of such Bank may be applied to or set
off against the payment of Obligations and any and all other liabilities,
direct, or indirect, absolute or contingent, due or to become due, now existing
or hereafter arising, of the Borrower to the Banks or the Administrative Agent.
Any amounts set off pursuant to this Section 14 shall be distributed ratably in
accordance with Section 30 among all of the Banks by the Bank setting off such
amounts. If any Bank fails to share such setoff ratably, the Administrative
Agent shall have the right to withhold such Bank's share of the Borrower's
payments until each of the Banks shall have, in the aggregate, received a pro
rata repayment.


<PAGE>   72

         SECTION 15. EXPENSES. Whether or not the transactions contemplated
herein shall be consummated, the Borrower hereby promises to reimburse the
Administrative Agent for all reasonable out-of-pocket fees and disbursements
(including all reasonable attorneys' fees) incurred or expended in connection
with the syndication, preparation, filing or recording, or interpretation of
this Agreement, the other Loan Documents, or any amendment, modification,
approval, consent or waiver hereof or thereof. The Borrower further promises to
reimburse the Administrative Agent and the Banks for all reasonable
out-of-pocket fees and disbursements (including all reasonable legal fees and
the allocable cost of in-house attorneys' fees) incurred or expended in
connection with the enforcement of any Obligations or the satisfaction of any
indebtedness of the Borrower hereunder or under any other Loan Document, or in
connection with any litigation, proceeding or dispute hereunder in any way
related to the credit hereunder. The Borrower also promises to pay the
Administrative Agent all reasonable out-of-pocket fees and disbursements,
incurred or expended in connection with the Competitive Bid Loan procedure under
Section 4 hereof.

         SECTION 16.  THE AGENTS.  

         SECTION 16.1. APPOINTMENT, POWERS AND IMMUNITIES. Each Bank hereby
irrevocably appoints and authorizes BKB to act as Administrative Agent,
provided, however, the Administrative Agent is hereby authorized to serve only
as administrative and documentation agent for the Banks and to exercise such
powers as are reasonably incidental thereto and as are set forth in this
Agreement and the other Loan Documents. The Administrative Agent hereby
acknowledges that it does not have the authority to negotiate any agreement
which would bind the Banks or agree to any amendment, waiver or modification of
any of the Loan Documents or bind the Banks except as set forth in this
Agreement or the Loan Documents. Except as provided in this Agreement, and in
the other Loan Documents, the Administrative Agent shall take action or refrain
from acting only upon instructions of the Banks. It is agreed that the duties,
rights, privileges and immunities of the Issuing Banks, in their capacity as
issuers of Letters of Credit hereunder, shall be identical to the duties,
rights, privileges and immunities of the Administrative Agent as provided in
this Section 16. The Administrative Agent shall not have any duties or
responsibilities or any fiduciary relationship with any Bank except those
expressly set forth in this Agreement and the other Loan Documents. Neither the
Administrative Agent nor any of its affiliates shall be responsible to the Banks
for any recitals, statements, representations or warranties made by the Borrower
or any other Person whether contained herein or otherwise or for the value,
validity, effectiveness, genuineness, enforceability or sufficiency of this
Agreement, the other Loan Documents or any other document referred to or
provided for herein or therein or for any failure by the Borrower or any other
Person to perform its obligations hereunder or thereunder or in respect of the
Notes. The Administrative Agent may employ agents and attorneys-in-fact and
shall not be responsible for the negligence or misconduct of any such agents or
attorneys-in-fact selected by it with reasonable care. The Administrative Agent,
the Agents and any of their directors, officers, employees or agents shall not
be responsible for any action taken or omitted to be taken by it or them
hereunder or in connection herewith, except for its or their own gross
negligence or willful misconduct. The Administrative Agent in its separate
capacity as a Bank shall have the same rights and powers hereunder as any other
Bank. The Documentation Agent and the Syndication Agents shall not have any
right, power, obligation, liability, responsibility or 



<PAGE>   73

duty under this Credit Agreement in such capacity, other than with respect to
the Documentation Agent, those applicable to all Banks as Banks.

         SECTION 16.2. ACTIONS BY ADMINISTRATIVE AGENT. The Administrative Agent
shall be fully justified in failing or refusing to take any action under this
Agreement as reasonably deemed appropriate unless it shall first have received
the consent of the Majority Banks (or, when expressly required hereby, all of
the Banks), and shall be indemnified to its reasonable satisfaction by the Banks
against any and all liability and expense which may be incurred by it by reason
of taking or continuing to take any such action. The Administrative Agent shall
in all cases be fully protected in acting, or in refraining from acting, under
this Agreement or any of the Loan Documents in accordance with the instruction
of the Majority Banks (or, when expressly required hereby or thereby, all of the
Banks), and such instruction and any action taken or failure to act pursuant
thereto shall be binding upon the Banks and all future holders of the Notes or
any Letter of Credit Participation.

         SECTION 16.3. INDEMNIFICATION. Without limiting the obligations of the
Borrower hereunder or under any other Loan Document, the Banks agree to
indemnify the Administrative Agent, its affiliates and its respective directors,
officers, agents and employees (to the extent not reimbursed by the Borrower)
ratably in accordance with their respective Commitment Percentages for any and
all liabilities, obligations, losses, damages, penalties, actions, judgments,
suits, costs, expenses or disbursements of any kind or nature whatsoever which
may at any time be imposed on, incurred by or asserted against the
Administrative Agent in any way relating to or arising out of this Agreement or
any other Loan Document or any documents contemplated by or referred to herein
or therein or the transactions contemplated hereby or thereby or the enforcement
of any of the terms hereof or thereof or of any such other documents; provided,
that no Bank shall be liable for any of the foregoing to the extent they arise
from the gross negligence or willful misconduct of the Administrative Agent (or
any agent thereof) and provided further that no Bank shall be liable with
respect to acts of Section 20 Subsidiaries of other Banks, IT BEING THE INTENT
OF THE PARTIES HERETO THAT ALL SUCH INDEMNIFIED PARTIES SHALL BE INDEMNIFIED FOR
THEIR ORDINARY SOLE OR CONTRIBUTORY NEGLIGENCE.

         SECTION 16.4. REIMBURSEMENT. Without limiting the provisions of 
Sections 6.1(a), 6.12, and 14, the Administrative Agent shall not be obliged to
make available to any Person any sum which the Administrative Agent is expecting
to receive for the account of that Person until the Administrative Agent has
determined that it has received that sum. The Administrative Agent may, however,
disburse funds prior to determining that the sums which the Administrative Agent
expects to receive have been finally and unconditionally paid to the
Administrative Agent, if the Administrative Agent wishes to do so. If and to the
extent that the Administrative Agent does disburse funds and it later becomes
apparent that the Administrative Agent did not then receive a payment in an
amount equal to the sum paid out, then any Person to whom the Administrative
Agent made the funds available shall, on demand from the Administrative Agent,
refund to the Administrative Agent the sum paid to that Person. If, in the
opinion of the Administrative Agent, the distribution of any amount received by
it in such capacity hereunder or under the other Loan Documents might involve it
in liability, it may refrain from making distribution until its right to make
distribution shall have been adjudicated by a court of competent jurisdiction.
If 



<PAGE>   74

a court of competent jurisdiction shall adjudge that any amount received and
distributed by the Administrative Agent is to be repaid, each Person to whom any
such distribution shall have been made shall either repay to the Administrative
Agent its proportionate share of the amount so adjudged to be repaid or shall
pay over the same in such manner and to such Persons as shall be determined by
such court.

         SECTION 16.5. DOCUMENTS. The Administrative Agent will forward to each
Bank, promptly after receipt thereof, a copy of each notice or other document
furnished to the Administrative Agent for such Bank hereunder; provided,
however, that, notwithstanding the foregoing, the Administrative Agent may
furnish to the Banks a monthly summary with respect to Letters of Credit issued
hereunder in lieu of copies of the related Letter of Credit Applications.

         SECTION 16.6. NON-RELIANCE ON ADMINISTRATIVE AGENT AND OTHER BANKS.
Each Bank represents that it has, independently and without reliance on the
Administrative Agent, the Agents or any other Bank, and based on such documents
and information as it has deemed appropriate, made its own appraisal of the
financial condition and affairs of the Borrower and the Guarantor and the
decision to enter into this Agreement and the other Loan Documents and agrees
that it will, independently and without reliance upon the Administrative Agent,
the Agents or any other Bank, and based on such documents and information as it
shall deem appropriate at the time, continue to make its own appraisals and
decisions in taking or not taking action under this Agreement or any other Loan
Document. Except as herein expressly provided to the contrary, the
Administrative Agent shall not be required to keep informed as to the
performance or observance by the Borrower and the Guarantor of this Agreement,
the other Loan Documents or any other document referred to or provided for
herein or therein or by any other Person of any other agreement or to make
inquiry of, or to inspect the properties or books of, any Person. Except for
notices, reports and other documents and information expressly required to be
furnished to the Banks by the Administrative Agent hereunder, the Administrative
Agent shall not have any duty or responsibility to provide any Bank with any
credit or other information concerning any person which may come into the
possession of the Administrative Agent or any of their affiliates. Each Bank
shall have access to all documents relating to the Administrative Agent's
performance of their duties hereunder at such Bank's request. Unless any Bank
shall promptly object to any action taken by the Administrative Agent hereunder
of which such Bank has actual knowledge (other than actions which require the
prior consent of such Bank in accordance with the terms hereof or to which the
provisions of Section 16.8 are applicable and other than actions which
constitute gross negligence or willful misconduct by the Administrative Agent),
such Bank shall be presumed to have approved the same.

         SECTION 16.7. RESIGNATION OF ADMINISTRATIVE AGENT. The Administrative
Agent may resign at any time by giving 60 days' prior written notice thereof to
the Banks and the Borrower. Upon any such resignation, the Banks (other than the
resigning Administrative Agent) shall have the right to appoint a successor
Administrative Agent from among the Banks. If no successor to the Administrative
Agent shall have been so appointed by the Banks and shall have accepted such
appointment within 30 days after the retiring Administrative Agent's giving of
notice of resignation, then the retiring Administrative Agent may, on behalf of
the Banks, appoint a successor Administrative Agent from among the remaining
Banks, which shall be a financial institution having a combined capital and
surplus in excess of $1,000,000,000. Upon the 



<PAGE>   75

acceptance of any appointment as the Administrative Agent hereunder by a
successor Administrative Agent, such successor Administrative Agent shall
thereupon succeed to and become vested with all the rights, powers, privileges
and duties of the retiring Administrative Agent, and the retiring Administrative
Agent shall be discharged from its duties and obligations hereunder. After the
retiring Administrative Agent's resignation, the provisions of this Agreement
shall continue in effect for its benefit in respect of any actions taken or
omitted to be taken by it while it was acting as the Administrative Agent. Any
new Issuing Bank appointed pursuant to this Section 16.7 shall immediately issue
new Letters of Credit in place of Letters of Credit previously issued or, if
acceptable to the resigning Issuing Bank, issue letters of credit in favor of
the resigning Issuing Bank as security for the outstanding Letters of Credit and
shall in due course replace all Letters of Credit previously issued by the
resigning Issuing Bank.

         SECTION 16.8. ACTION BY THE BANKS, CONSENTS, AMENDMENTS, WAIVERS, ETC.
Any action to be taken (including the giving of notice) may be taken, any
consent or approval required or permitted by this Agreement or any other Loan
Document to be given by the Banks may be given, any term of this Agreement, any
other Loan Document or any other instrument, document or agreement related to
this Agreement or the other Loan Documents or mentioned therein may be amended,
and the performance or observance by the Borrower or any other Person of any of
the terms thereof and any Default or Event of Default (as defined in any of the
above-referenced documents or instruments) may be waived (either generally or in
a particular instance and either retroactively or prospectively), only with the
written consent of the Majority Banks; provided, however, that no such consent
or amendment which affects the rights, duties or liabilities of the
Administrative Agent or any Issuing Bank shall be effective without the written
consent of the Administrative Agent or such Issuing Bank, as the case may be.
Notwithstanding the foregoing, no amendment, waiver or consent shall do any of
the following unless in writing and signed by ALL of the Banks (a) increase the
principal amount of the Total Commitment (or subject any Bank to any additional
obligations), (b) reduce the principal of or interest on the Notes (including,
without limitation, interest on overdue amounts) or any fees payable hereunder,
(c) postpone any date fixed for any payment in respect of principal or interest
(including, without limitation, interest on overdue amounts) on the Notes or any
fee hereunder (except pursuant to Section 2.10); (d) change the definition of
"Majority Banks" or number of Banks which shall be required for the Banks or any
of them to take any action under the Loan Documents; (e) amend this Section
16.8; (f) change the Commitment Percentage of any Bank, except as permitted
under Section 21 and Section 2.10 hereof, (g) change the Total Commitment
Percentage of any Bank, or (h) release the Borrower or the Guarantor from its
obligations hereunder (except as expressly set forth herein).

         SECTION 17. INDEMNIFICATION. The Borrower agrees to indemnify and hold
harmless the Banks, the Agents, the Issuing Banks, the Joint Lead Arrangers and
Joint Book Managers and the Administrative Agent and their affiliates, as well
as the Banks' and the Administrative Agent's and their affiliates' shareholders,
directors, agents, officers, subsidiaries and affiliates, from and against all
damages, losses, settlement payments, obligations, liabilities, claims, suits,
penalties, assessments, citations, directives, demands, judgments, actions or
causes of action, whether statutorily created or under the common law, and
reasonable costs and expenses incurred, suffered, sustained or required to be
paid by an indemnified party by reason of or resulting from the transactions
contemplated hereby, except any of the foregoing which result from the gross
negligence or willful misconduct of any indemnified party. In any investigation,



<PAGE>   76

enforcement matter, proceeding or litigation, or the preparation therefor, the
Banks and the Administrative Agent shall be entitled to select their own counsel
and, in addition to the foregoing indemnity, the Borrower agrees to pay promptly
the reasonable fees and expenses of such counsel (including the non-duplicative
allocated cost of internal counsel), and settlement costs. In the event of the
commencement of any such proceeding or litigation against the Banks or
Administrative Agent by third parties, the Borrower shall be entitled to
participate in such proceeding or litigation with counsel of their choice at
their expense, provided that such counsel shall be reasonably satisfactory to
the Banks or Administrative Agent. The covenants of this Section 17 shall
survive payment or satisfaction of payment of amounts owing with respect to any
Note or any other Loan Document and satisfaction of all the Obligations
hereunder, IT BEING THE INTENT OF THE PARTIES HERETO THAT ALL SUCH INDEMNIFIED
PARTIES SHALL BE INDEMNIFIED FOR THEIR ORDINARY SOLE OR CONTRIBUTORY NEGLIGENCE.

         SECTION 18. WITHHOLDING TAXES. The Borrower hereby agrees that:

                  (a) Any and all payments made by the Borrower hereunder shall
         be made free and clear of, and without deduction for, any and all
         present or future taxes, levies, fees, duties, imposts, deductions,
         charges or withholdings of any nature whatsoever, excluding, in the
         case of the Administrative Agent or the Banks or any holder of the
         Notes, (i) taxes imposed on, or measured by, its net income or profits,
         (ii) franchise taxes imposed on it, (iii) taxes imposed by any
         jurisdiction as a direct consequence of it, or any of its affiliates,
         having a present or former connection with such jurisdiction,
         including, without limitation, being organized, existing or qualified
         to do business, doing business or maintaining a permanent establishment
         or office in such jurisdiction, and (iv) taxes imposed by reason of its
         failure to comply with any applicable certification, identification,
         information, documentation or other reporting requirement (all such
         non-excluded taxes being hereinafter referred to as "Indemnifiable
         Taxes"). In the event that any withholding or deduction from any
         payment to be made by the Borrower hereunder is required in respect of
         any Indemnifiable Taxes pursuant to any applicable law, or governmental
         rule or regulation, then the Borrower will (i) direct to the relevant
         taxing authority the full amount required to be so withheld or
         deducted, (ii) forward to the Administrative Agent for delivery to the
         applicable Bank an official receipt or other documentation satisfactory
         to the Administrative Agent and the applicable Bank evidencing such
         payment to such taxing authority, and (iii) direct to the
         Administrative Agent for the account of the relevant Banks such
         additional amount or amounts as is necessary to ensure that the net
         amount actually received by each relevant Bank will equal the full
         amount such Bank would have received had no such withholding or
         deduction (including any Indemnifiable Taxes on such additional
         amounts) been required. Moreover, if any Indemnifiable Taxes are
         directly asserted against the Administrative Agent or any Bank with
         respect to any payment received by the Administrative Agent or such
         Bank by reason of the Borrower's failure to properly deduct and
         withhold such Indemnifiable Taxes from such payment, the Administrative
         Agent or such Bank may pay such Indemnifiable Taxes and the Borrower
         will promptly pay all such additional amounts (including any penalties,
         interest or reasonable expenses) as is necessary in order that the net
         amount received by such Person after the payment of



<PAGE>   77

         such Indemnifiable Taxes (including any Indemnifiable Taxes on such
         additional amount) shall equal the amount such Person would have
         received had not such Indemnifiable Taxes been asserted. Any such
         payment shall be made promptly after the receipt by the Borrower from
         the Administrative Agent or such Bank, as the case may be, of a written
         statement setting forth in reasonable detail the amount of the
         Indemnifiable Taxes and the basis of the claim.

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

                  (c) The Borrower hereby indemnifies and holds harmless the
         Administrative Agent and each Bank for the full amount of Indemnifiable
         Taxes or Other Taxes (including, without limitation, any Indemnifiable
         Taxes or Other Taxes imposed on amounts payable under this Section 18)
         paid by the Administrative Agent or such Bank, as the case may be, and
         any liability (including penalties, interest and reasonable expenses)
         arising therefrom or with respect thereto, by reason of the Borrower's
         failure to properly deduct and withhold Indemnifiable Taxes pursuant to
         paragraph (a) above or to properly pay Other Taxes pursuant to
         paragraph (b) above. Any indemnification payment from the Borrower
         under the preceding sentence shall be made promptly after receipt by
         the Borrower from the Administrative Agent or Bank of a written
         statement setting forth in reasonable detail the amount of such
         Indemnifiable Taxes or such Other Taxes, as the case may be, and the
         basis of the claim.

                  (d) If the Borrower pays any amount under this Section 18 to
         the Administrative Agent or any Bank and such payee knowingly receives
         a refund of any taxes with respect to which such amount was paid, the
         Administrative Agent or such Bank, as the case may be, shall pay to the
         Borrower the amount of such refund promptly following the receipt
         thereof by such payee.

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

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

                  (g) Without prejudice to the survival of any other agreement
         of the parties hereunder, the agreements and obligations of the
         Borrower contained in this Section 18 shall survive the payment in full
         of the Obligations.


<PAGE>   78

         SECTION 19.  TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION.  

         SECTION 19.1. SHARING OF INFORMATION WITH SECTION 20 SUBSIDIARY. The
Borrower acknowledges that from time to time financial advisory, investment
banking and other services may be offered or provided to the Borrower or one or
more of its Subsidiaries, in connection with this Agreement or otherwise, by a
Section 20 Subsidiary. The Borrower, for itself and each of its Subsidiaries,
hereby authorizes (a) such Section 20 Subsidiary to share with the
Administrative Agent and each Bank any information delivered to such Section 20
Subsidiary by the Borrower or any of its Subsidiaries, and (b) the
Administrative Agent and each Bank to share with such Section 20 Subsidiary any
information delivered to the Administrative Agent or such Bank by the Borrower
or any of its Subsidiaries pursuant to this Agreement, or in connection with the
decision of such Bank to enter into this Agreement; it being understood, in each
case, that any such Section 20 Subsidiary receiving such information shall be
bound by the confidentiality provisions of this Agreement. Such authorization
shall survive the payment and satisfaction in full of all of Obligations.

         SECTION 19.2. CONFIDENTIALITY. Each of the Banks and the Administrative
Agent agrees, on behalf of itself and each of its affiliates, directors,
officers, employees and representatives, to use reasonable precautions to keep
confidential, in accordance with their customary procedures for handling
confidential information of the same nature and in accordance with safe and
sound banking practices, any non-public information supplied to it by the
Borrower or any of its Subsidiaries pursuant to this Agreement that is
identified by such Person as being confidential at the time the same is
delivered to the Banks or the Administrative Agent, provided that nothing herein
shall limit the disclosure of any such information (a) after such information
shall have become public other than through a violation of this Section 19, (b)
to the extent required by statute, rule, regulation or judicial process, (c) to
counsel for any of the Banks or the Administrative Agent, (d) to bank examiners
or any other regulatory authority having jurisdiction over any Bank or the
Administrative Agent, or to auditors or accountants, (e) to the Administrative
Agent, any Bank or any Section 20 Subsidiary, (f) in connection with any
litigation to which any one or more of the Banks, the Administrative Agent or
any Section 20 Subsidiary is a party, or in connection with the enforcement of
rights or remedies hereunder or under any other Loan Document, (g) to a
Subsidiary or affiliate of such Bank as provided in Section 19.1 or (h) to any
assignee or participant (or prospective assignee or participant) so long as such
assignee or participant agrees to be bound by the provisions of Section 21.

         SECTION 19.3. PRIOR NOTIFICATION. Unless specifically prohibited by
applicable law or court order, each of the Banks and the Administrative Agent
shall, prior to disclosure thereof, notify the Borrower of any request for
disclosure of any such non-public information by any governmental agency or
representative thereof (other than any such request in connection with an
examination of the financial condition of such Bank by such governmental agency)
or pursuant to legal process.

         SECTION 19.4. OTHER. In no event shall any Bank or the Administrative
Agent be obligated or required to return any materials furnished to it or any
Section 20 Subsidiary by the Borrower or any of its Subsidiaries. The
obligations of each Bank under this Section 19 shall supersede and replace the
obligations of such Bank under any confidentiality letter in respect of this
financing signed and delivered by such Bank to the Borrower prior to the date
hereof and shall be binding upon 



<PAGE>   79

any assignee of, or purchaser of any participation in, any interest in any of
the Loans or Reimbursement Obligations from any Bank.

         SECTION 20. SURVIVAL OF COVENANTS, ETC. Unless otherwise stated herein,
all covenants, agreements, representations and warranties made herein, in the
other Loan Documents or in any documents or other papers delivered by or on
behalf of the Borrower or the Guarantor pursuant hereto shall be deemed to have
been relied upon by the Banks, the Issuing Banks and the Administrative Agent,
notwithstanding any investigation heretofore or hereafter made by them, and
shall survive the making by the Banks of the Loans and the issuance, extension
or renewal of any Letters of Credit by any Issuing Bank, as herein contemplated,
and shall continue in full force and effect so long as any amount due under this
Agreement, any Obligation, any Letter of Credit or any Note remains outstanding
and unpaid or any Bank has any obligation to make any Loans or any Issuing Bank
has any obligation to issue, extend, or renew any Letters of Credit hereunder.
All statements contained in any certificate or other paper delivered by or on
behalf of the Borrower pursuant hereto or in connection with the transactions
contemplated hereby shall constitute representations and warranties by the
Borrower hereunder.

         SECTION 21. ASSIGNMENT AND PARTICIPATION. It is understood and agreed
that each Bank shall have the right to assign at any time all or a portion of
its Commitment Percentage and interests in the risk relating to the Loans,
outstanding Letters of Credit and its Commitment hereunder in an amount equal to
or greater than $5,000,000 (or, if a Bank's Commitment is less than $5,000,000,
in a minimum amount equal to such Bank's Commitment, provided that prior to any
Commitment reductions pursuant to Section 2.3, such Bank's Commitment was at
least $10,000,000) to additional banks or other financial institutions with the
prior written approval of the Administrative Agent and, so long as no Event of
Default has occurred and is continuing, the Borrower, which approvals shall not
be unreasonably withheld. Any Bank may at any time, and from time to time,
assign to any branch, lending office, or affiliate or such Bank all or any part
of its rights and obligations under the Loan Documents by notice to the
Administrative Agent and the Borrower. It is further agreed that each bank or
other financial institution which executes and delivers to the Administrative
Agent and the Borrower hereunder an Assignment and Acceptance substantially in
the form of Exhibit G hereto (an "Assignment and Acceptance") together with an
assignment fee in the amount of $3,500 payable by the assigning Bank to the
Administrative Agent, shall, on the date specified in such Assignment and
Acceptance, become a party to this Agreement and the other Loan Documents for
all purposes of this Agreement and the other Loan Documents, and its portion of
the Commitment, the Loans and Letters of Credit shall be as set forth in such
Assignment and Acceptance. The Bank assignor thereunder shall, to the extent
that rights and obligations hereunder have been assigned by it pursuant to such
Assignment and Acceptance, relinquish its rights and be released from its
obligations under this Agreement and the other Loan Documents. Upon the
execution and delivery of such Assignment and Acceptance, (a) the Borrower shall
issue to the assignee bank or other financial institution Notes in the amount of
such bank's or other financial institution's Commitment dated the date of the
assignment or such other date as may be specified by the Administrative Agent,
and otherwise completed in substantially the form of Exhibits A or B, and to the
extent any assigning Bank has retained a portion of its obligations hereunder, a
replacement Syndicated Note, to the assigning Bank reflecting its assignment;
(b) to the extent applicable, the Borrower shall issue a Competitive Bid Note in
substantially the form of Exhibit C (and a replacement



<PAGE>   80

Competitive Bid Note) or the Administrative Agent shall make appropriate entries
on the Competitive Bid Loan Accounts to reflect such assignment of Competitive
Bid Loan(s); (c) the Administrative Agent shall distribute to the Borrower, the
Banks and such bank or financial institution a revised Schedule 1 reflecting
such changes; and (d) this Agreement shall be deemed to be appropriately amended
to reflect (i) the status of the bank or financial institution as a party hereto
and (ii) the status and rights of the Banks hereunder.

         Each Bank shall also have the right to grant participations to one or
more banks or other financial institutions in its Commitment, the Loans and
outstanding Letters of Credit. The documents evidencing any such participation
shall limit such participating bank's or financial institution's voting rights
with respect to this Agreement to the matters set forth in Section 16.8 which
require the approval of all Banks.

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

         Anything contained in this Section 21 to the contrary notwithstanding,
any Bank may at any time pledge all or any portion of its interest and rights
under this Agreement (including all or any portion of its Notes) to any of the
twelve Federal Reserve Banks organized under Section 4 of the Federal Reserve
Act, 12 U.S.C. Section 341. No such pledge or the enforcement thereof shall
release the pledgor Bank from its obligations hereunder or under any of the
other Loan Documents.

         The Borrower agrees that in addition to disclosures made in accordance
with standard and customary banking practices any Bank may disclose information
obtained by such Bank pursuant to this Agreement to assignees or participants
and potential assignees or participants hereunder; provided that such assignees
or participants or potential assignees or participants shall agree to be bound
by Section 19 hereof.

         SECTION 22. PARTIES IN INTEREST. All the terms of this Agreement and
the other Loan Documents shall be binding upon and inure to the benefit of and
be enforceable by the respective successors and assigns of the parties hereto
and thereto; provided, that the Borrower shall not assign or transfer its rights
or obligations hereunder or thereunder without the prior written consent of each
of the Banks.

         SECTION 23. NOTICES, ETC. Except as otherwise expressly provided in
this Agreement, all notices and other communications made or required to be
given pursuant to this Agreement or the other Loan Documents shall be in writing
and shall be delivered in hand, mailed by United States first class mail,
postage prepaid, or sent by telegraph, telex or facsimile and confirmed by
letter, addressed as follows:

                  (a) if to the Borrower or the Guarantor, at 1001 Fannin
         Street, Suite 4000, Houston, Texas 77002, Attention: Ronald H. Jones,
         facsimile number (713) 209-9710; or


<PAGE>   81

                  (b) if to BKB or the Administrative Agent at BankBoston, N.A.,
         100 Federal Street, Boston, Massachusetts 02110, Attention: Arthur J.
         Oberheim, Director, facsimile number (617) 434-2160; or

                  (c) if to any Bank, at the last address provided to the
         Administrative Agent;

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

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

         SECTION 24. MISCELLANEOUS. The rights and remedies herein expressed are
cumulative and not exclusive of any other rights which the Banks, the Issuing
Banks or the Administrative Agent would otherwise have. The captions in this
Agreement are for convenience of reference only and shall not define or limit
the provisions hereof. This Agreement and any amendment hereof may be executed
in several counterparts and by each party on a separate counterpart, each of
which when so executed and delivered shall be an original, but all of which
together shall constitute one instrument. In proving this Agreement it shall not
be necessary to produce or account for more than one such counterpart signed by
the party against whom enforcement is sought.

         SECTION 25. CONSENTS, ETC. Neither this Agreement nor any term hereof
may be changed, waived, discharged or terminated, except as provided in this
Section 25, subject to the provisions of Section 16.8. No waiver shall extend to
or affect any obligation not expressly waived or impair any right consequent
thereon. Except as otherwise expressly provided in this Agreement, any consent
or approval required or permitted by this Agreement to be given by the Banks may
be given, and any term of this Agreement or of any other instrument related
hereto or mentioned herein may be amended, and the performance or observance by
the Borrower of any terms of this Agreement or such other instrument or the
continuance of any Default or Event of Default may be waived (either generally
or in a particular instance and either retroactively or prospectively) with, but
only with, the written consent of the Borrower and the Majority Banks. To the
extent permitted by law, no course of dealing or delay or omission on the part
of any of the Banks, the Issuing Banks or the Administrative Agent in exercising
any right shall operate as a waiver thereof or otherwise be prejudicial thereto.
No notice to or demand upon the Borrower shall entitle the Borrower to other or
further notice or demand in similar or other circumstances.

         SECTION 26. WAIVER OF JURY TRIAL. TO THE EXTENT PERMITTED BY APPLICABLE
LAW, EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO A
JURY TRIAL WITH RESPECT TO ANY ACTION OR CLAIM ARISING OUT OF ANY DISPUTE IN
CONNECTION WITH THIS AGREEMENT, THE NOTES OR ANY OF THE OTHER LOAN DOCUMENTS,
ANY RIGHTS OR OBLIGATIONS HEREUNDER OR THEREUNDER OR THE 



<PAGE>   82

PERFORMANCE OF SUCH RIGHTS AND OBLIGATIONS. EXCEPT AS PROHIBITED BY LAW, THE
BORROWER AND THE GUARANTOR HEREBY WAIVE ANY RIGHT EITHER OF THEM MAY HAVE TO
CLAIM OR RECOVER IN ANY LITIGATION REFERRED TO IN THE PRECEDING SENTENCE ANY
SPECIAL, EXEMPLARY, PUNITIVE OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES OTHER THAN,
OR IN ADDITION TO, ACTUAL DAMAGES. THE BORROWER AND THE GUARANTOR EACH (A)
CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY BANK, ANY ISSUING
BANK, THE ADMINISTRATIVE AGENT OR ANY AGENT HAS REPRESENTED, EXPRESSLY OR
OTHERWISE, THAT SUCH BANK, SUCH ISSUING BANK, THE ADMINISTRATIVE AGENT OR SUCH
AGENT WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING
WAIVERS AND (B) ACKNOWLEDGES THAT THE ADMINISTRATIVE AGENT, THE BANKS, AND THE
ISSUING BANKS HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT AND THE OTHER LOAN
DOCUMENTS BECAUSE OF, AMONG OTHER THINGS, THE BORROWER'S AND THE GUARANTOR'S
WAIVERS AND CERTIFICATIONS CONTAINED HEREIN.

         SECTION 27. GOVERNING LAW; SUBMISSION TO JURISDICTION. THIS AGREEMENT
AND EACH OF THE OTHER LOAN DOCUMENTS ARE CONTRACTS UNDER THE LAWS OF THE STATE
OF NEW YORK AND SHALL, PURSUANT TO NEW YORK GENERAL OBLIGATIONS LAW SECTION
5-1401, BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF THE STATE OF
NEW YORK. THE BORROWER AND THE GUARANTOR CONSENT AND AGREE THAT ANY SUIT FOR THE
ENFORCEMENT OF THIS AGREEMENT OR ANY OF THE OTHER LOAN DOCUMENTS MAY BE BROUGHT
IN THE COURTS OF THE STATE OF NEW YORK OR ANY FEDERAL COURT SITTING THEREIN AND
CONSENTS TO THE NONEXCLUSIVE JURISDICTION OF SUCH COURT AND SERVICE OF PROCESS
IN ANY SUCH SUIT BEING MADE UPON THE BORROWER IN ACCORDANCE WITH LAW AT THE
ADDRESS SPECIFIED IN SECTION 23. THE BORROWER AND THE GUARANTOR HEREBY WAIVE ANY
OBJECTION THAT THEY MAY NOW OR HEREAFTER HAVE TO THE VENUE OF ANY SUCH SUIT OR
ANY SUCH COURT OR THAT SUCH SUIT IS BROUGHT IN AN INCONVENIENT COURT.

         SECTION 28. SEVERABILITY. The provisions of this Agreement are
severable and if any one clause or provision hereof shall be held invalid or
unenforceable in whole or in part in any jurisdiction, then such invalidity or
unenforceability shall affect only such clause or provision, or part thereof, in
such jurisdiction, and shall not in any manner affect such clause or provision
in any other jurisdiction, or any other clause or provision of this Agreement in
any jurisdiction.

         SECTION 29.  GUARANTY.  

         SECTION 29.1. GUARANTY. For value received and hereby acknowledged and
as an inducement to the Banks and the Issuing Banks to make the Loans available
to the Borrower, and issue, extend or renew Letters of Credit for the account of
the Borrower, the Guarantor hereby unconditionally and irrevocably guarantees
(a) the full punctual payment when due, whether at stated maturity,



<PAGE>   83

by acceleration or otherwise, of all Obligations of the Borrower now or
hereafter existing whether for principal, interest, fees, expenses or otherwise,
and (b) the strict performance and observance by the Borrower of all agreements,
warranties and covenants applicable to the Borrower in the Loan Documents and
(c) the obligations of the Borrower under the Loan Documents (such Obligations
collectively being hereafter referred to as the "Guaranteed Obligations").

         SECTION 29.2. GUARANTY ABSOLUTE. The Guarantor guarantees that the
Guaranteed Obligations will be paid strictly in accordance with the terms
hereof, regardless of any law, regulation or order now or hereafter in effect in
any jurisdiction affecting any of such terms or the rights of any Bank, any
Issuing Bank or the Administrative Agent with respect thereto. The liability of
the Guarantor under the guaranty granted under this Agreement with regard to the
Guaranteed Obligations shall be absolute and unconditional irrespective of:

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

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

                  (c) any change in ownership of the Borrower;

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

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

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

         SECTION 29.3. EFFECTIVENESS; ENFORCEMENT. The guaranty under this
Agreement shall be effective and shall be deemed to be made with respect to each
Loan and each Letter of Credit as of the time it is made, issued or extended, or
becomes a Letter of Credit under this Agreement, as applicable. No invalidity,
irregularity or unenforceability by reason of any bankruptcy or similar law, or
any law or order of any government or agency thereof purporting to reduce, amend
or otherwise affect any liability of the Borrower, and no defect in or
insufficiency or want of powers of the Borrower or irregular or improperly
recorded exercise thereof, shall impair, affect, be a defense to or claim
against such guaranty. The guaranty under this Agreement is a continuing
guaranty and shall (a) survive any termination of this Agreement, and (b) remain
in full force and effect until payment in full of, and performance of, all
Guaranteed Obligations and 



<PAGE>   84

all other amounts payable under this Agreement. The guaranty under this
Agreement is made for the benefit of the Administrative Agent, the Issuing Banks
and the Banks and their successors and assigns, and may be enforced from time to
time as often as occasion therefor may arise and without requirement on the part
of the Administrative Agent, the Issuing Banks or the Banks first to exercise
any rights against the Borrower, or to resort to any other source or means of
obtaining payment of any of the said obligations or to elect any other remedy.

         SECTION 29.4. WAIVER. Except as otherwise specifically provided in any
of the Loan Documents, the Guarantor hereby waives promptness, diligence,
protest, notice of protest, all suretyship defenses, notice of acceptance and
any other notice with respect to any of its Guaranteed Obligations and the
guaranty under this Agreement and any requirement that the Banks, the Issuing
Banks or the Administrative Agent protect, secure, perfect any security interest
or lien or any property subject thereto or exhaust any right or take any action
against the Borrower or any other Person. The Guarantor also irrevocably waives,
to the fullest extent permitted by law, all defenses which at any time may be
available to it in respect of its Guaranteed Obligations by virtue of any
statute of limitations, valuation, stay, moratorium law or other similar law now
or hereafter in effect.

         SECTION 29.5. EXPENSES. The Guarantor hereby promises to reimburse (a)
the Administrative Agent for all reasonable out-of-pocket fees and disbursements
(including all reasonable attorneys' fees), incurred or expended in connection
with the preparation, filing or recording, or interpretation of the guaranty
under this Agreement, the other Loan Documents to which the Guarantor is a
party, or any amendment, modification, approval, consent or waiver hereof or
thereof, and (b) the Administrative Agent, the Issuing Banks and the Banks and
their respective affiliates for all reasonable out-of-pocket fees and
disbursements (including reasonable attorneys' fees), incurred or expended in
connection with the enforcement of its Guaranteed Obligations (whether or not
legal proceedings are instituted). The Guarantor will pay any taxes (including
any interest and penalties in respect thereof) other than the Banks' taxes based
on overall income or profits, payable on or with respect to the transactions
contemplated by the guaranty under this Agreement, the Guarantor hereby agreeing
jointly and severally to indemnify each Bank with respect thereto.

         SECTION 29.6. CONCERNING JOINT AND SEVERAL LIABILITY OF THE GUARANTOR.

                  (a) The Guarantor hereby irrevocably and unconditionally
         accepts, not merely as a surety but also as a co-debtor, joint and
         several liability with the Borrower, with respect to the payment and
         performance of all of its Guaranteed Obligations (including, without
         limitation, any Guaranteed Obligations arising under this Section 29),
         it being the intention of the parties hereto that all such Guaranteed
         Obligations shall be the joint and several Guaranteed Obligations of
         the Guarantor and the Borrower without preferences or distinction among
         them.

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


<PAGE>   85

                  (c) The Guaranteed Obligations of the Guarantor under the
         provisions of this Section 29 constitute full recourse obligations of
         the Guarantor enforceable against the Guarantor to the full extent of
         its properties and assets, irrespective of the validity, regularity or
         enforceability of this Agreement or any other circumstance whatsoever.

                  (d) Except as otherwise expressly provided in this Agreement,
         the Guarantor hereby waives notice of acceptance of its joint and
         several liability, notice of any Loans made, or Letters of Credit
         issued under this Agreement, notice of any action at any time taken or
         omitted by the Administrative Agent, the Issuing Banks or the Banks
         under or in respect of any of the Guaranteed Obligations, and,
         generally, to the extent permitted by applicable law, all demands,
         notices and other formalities of every kind in connection with this
         Agreement. The Guarantor hereby assents to, and waives notice of, any
         extension or postponement of the time for the payment of any of the
         Guaranteed Obligations, the acceptance of any payment of any of the
         Guaranteed Obligations, the acceptance of any partial payment thereon,
         any waiver, consent or other action or acquiescence by the
         Administrative Agent, the Issuing Banks or the Banks at any time or
         times in respect of any Default or Event of Default by the Borrower or
         the Guarantor in the performance or satisfaction of any term, covenant,
         condition or provision of this Agreement or any other Loan Document,
         any and all other indulgences whatsoever by the Administrative Agent,
         the Issuing Banks or the Banks in respect of any of the Guaranteed
         Obligations, and the taking, addition, substitution or release, in
         whole or in part, at any time or times, of any security for any of the
         Guaranteed Obligations or the addition, substitution or release, in
         whole or in part, of the Borrower or the Guarantor. Without limiting
         the generality of the foregoing, the Guarantor assents to any other
         action or delay in acting or failure to act on the part of the Banks,
         the Issuing Banks or the Administrative Agent with respect to the
         failure by the Borrower or the Guarantor to comply with its respective
         Obligations or Guaranteed Obligations, including, without limitation,
         any failure strictly or diligently to assert any right or to pursue any
         remedy or to comply fully with applicable laws or regulations
         thereunder, which might, but for the provisions of this Section 29,
         afford grounds for terminating, discharging or relieving the Guarantor,
         in whole or in part, from any of the Guaranteed Obligations under this
         Section 29, it being the intention of the Guarantor that, so long as
         any of the Guaranteed Obligations hereunder remain unsatisfied, the
         Guaranteed Obligations of the Guarantor under this Section 29 shall not
         be discharged except by performance and then only to the extent of such
         performance. The Guaranteed Obligations of the Guarantor under this
         Section 29 shall not be diminished or rendered unenforceable by any
         winding up, reorganization, arrangement, liquidation, reconstruction or
         similar proceeding with respect to the Borrower or the Guarantor or the
         Banks, the Issuing Banks or the Administrative Agent. The joint and
         several liability of the Guarantor hereunder shall continue in full
         force and effect notwithstanding any absorption, merger, consolidation,
         amalgamation or any other change whatsoever in the name, membership,
         constitution or place of formation of the Borrower or the Guarantor,
         the Banks, the Issuing Banks or the Administrative Agent.

                  (e) The Guarantor shall be liable under this Section 29 only
         for the maximum amount of such liabilities that can be incurred under
         applicable law without rendering this Section 29 voidable under
         applicable law relating to fraudulent conveyance and fraudulent



<PAGE>   86

         transfer, and not for any greater amount. Accordingly, if any
         obligation under any provision under this Section 29 shall be declared
         to be invalid or unenforceable in any respect or to any extent, it is
         the stated intention and agreement of the Guarantor, the Administrative
         Agent, the Issuing Banks and the Banks that any balance of the
         obligation created by such provision and all other obligations of the
         Guarantor under this Section 29 to the Banks, the Issuing Banks or the
         Administrative Agent shall remain valid and enforceable, and that all
         sums not in excess of those permitted under applicable law shall remain
         fully collectible by the Banks, the Issuing Banks and the
         Administrative Agent from the Borrower or the Guarantor, as the case
         may be.

                  (f) The provisions of this Section 29 are made for the benefit
         of the Administrative Agent, the Issuing Banks and the Banks and their
         successors and assigns, and may be enforced in good faith by them from
         time to time against the Guarantor as often as occasion therefor may
         arise and without requirement on the part of the Administrative Agent,
         the Issuing Banks or the Banks first to marshal any of their claims or
         to exercise any of their rights against the Borrower or the Guarantor
         or to exhaust any remedies available to them against the Borrower or
         the Guarantor or to resort to any other source or means of obtaining
         payment of any of the obligations hereunder or to elect any other
         remedy. The provisions of this Section 29 shall remain in effect until
         all of the Guaranteed Obligations shall have been paid in full or
         otherwise fully satisfied and the Commitments have expired and all
         outstanding Letters of Credit have expired, matured or otherwise been
         terminated. If at any time, any payment, or any part thereof, made in
         respect of any of the Guaranteed Obligations, is rescinded or must
         otherwise be restored or returned by the Banks, the Issuing Banks or
         the Administrative Agent upon the insolvency, bankruptcy or
         reorganization of the Borrower or the Guarantor, or otherwise, the
         provisions of this Section 29 will forthwith be reinstated in effect,
         as though such payment had not been made.

         SECTION 29.7. WAIVER. Until the final payment and performance in full
of all of the Obligations, the Guarantor shall not exercise and the Guarantor
hereby waives any rights the Guarantor may have against the Borrower arising as
a result of payment by the Guarantor hereunder, by way of subrogation,
reimbursement, restitution, contribution or otherwise, and will not prove any
claim in competition with the Administrative Agent, the Issuing Banks or any
Bank in respect of any payment hereunder in any bankruptcy, insolvency or
reorganization case or proceedings of any nature; the Guarantor will not claim
any setoff, recoupment or counterclaim against the Borrower in respect of any
liability of the Borrower to the Guarantor; and the Guarantor waives any benefit
of and any right to participate in any collateral security which may be held by
the Administrative Agent, the Issuing Banks or any Bank.

         SECTION 29.8. SUBROGATION; SUBORDINATION. The payment of any amounts
due with respect to any indebtedness of the Borrower for money borrowed or
credit received now or hereafter owed to the Guarantor is hereby subordinated to
the prior payment in full of all of the Obligations. The Guarantor agrees that,
after the occurrence of any default in the payment or performance of any of the
Obligations, the Guarantor will not demand, sue for or otherwise attempt to
collect any such indebtedness of the Borrower to the Guarantor until all of the
Obligations shall have been paid in full. If, notwithstanding the foregoing
sentence, the Guarantor shall collect, enforce 


<PAGE>   87

or receive any amounts in respect of such indebtedness while any Obligations are
still outstanding, such amounts shall be collected, enforced and received by the
Guarantor as trustee for the Banks, the Issuing Banks and the Administrative
Agent and be paid over to the Administrative Agent at Default, for the benefit
of the Banks, the Issuing Banks, and the Administrative Agent on account of the
Obligations without affecting in any manner the liability of the Guarantor under
the other provisions hereof.

         SECTION 30. PARI PASSU TREATMENT.

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

                  (b) Following the occurrence and during the continuance of any
         Event of Default, each Bank agrees that if it shall, through the
         exercise of a right of banker's lien, setoff or counterclaim against
         any Borrower (pursuant to Section 14 or otherwise), including a secured
         claim under Section 506 of the Bankruptcy Code or other security or
         interest arising from or in lieu of, such secured claim, received by
         such Bank under any applicable bankruptcy, insolvency or other similar
         law or otherwise, obtain payment (voluntary or involuntary) in respect
         of the Notes, Loans, Reimbursement Obligations and other Obligations
         held by it (other than pursuant to Section 6.4, Section 6.5 or Section
         6.7) as a result of which the unpaid principal portion of the Notes and
         the Obligations held by it shall be proportionately less than the
         unpaid principal portion of the Notes and Obligations held by any other
         Bank, it shall be deemed to have simultaneously purchased from such
         other Bank a participation in the Notes and Obligations held by such
         other Bank, so that the aggregate unpaid principal amount of the Notes,
         Obligations and participations in Notes and Obligations held by each
         Bank shall be in the same proportion to the aggregate unpaid principal
         amount of the Notes and Obligations then outstanding as the principal
         amount of the Notes and other Obligations held by it prior to such
         exercise of banker's lien, setoff or counterclaim was to the principal
         amount of all Notes and other Obligations outstanding prior to such
         exercise of banker's lien, setoff or counterclaim; provided, however,
         that if any such purchase or purchases or adjustments shall be made
         pursuant to this Section 30 and the payment giving rise thereto shall
         thereafter be recovered, such purchase or purchases or adjustments
         shall be rescinded to the extent of such recovery and the purchase
         price or prices or adjustments restored without interest. The Borrower
         expressly consents to the foregoing arrangements and agrees that any
         Person holding such a participation in the Notes and the Obligations
         deemed to have been so purchased may exercise any and all rights of
         banker's lien, setoff or counterclaim with respect to any and all
         moneys owing by the Borrower to such Person as fully as if such Person
         had made a Loan directly to the Borrower in the amount of such
         participation.

         SECTION 31. TRANSITIONAL ARRANGEMENTS. Upon the Effective Date (a) this
Agreement shall supersede the Prior Loan Agreement in its entirety, and (b) the
parties acknowledge and agree that the Pricing Table set forth herein shall be
applied retroactively to 



<PAGE>   88

October 29, 1999 to the Loans and Letters of Credit outstanding under the Prior
Loan Agreement; and the Borrower hereby agrees to pay on December 15, 1999 (i)
any facility fees due under the Prior Loan Agreement, (ii) any incremental
amounts due as the result of such retroactive increase to the extent not paid on
or before the Effective Date, and (iii) any other amounts due under the Prior
Loan Agreement.

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



<PAGE>   89




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

                                THE BORROWER:

                                WASTE MANAGEMENT, INC.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:



<PAGE>   90



                                THE GUARANTOR:

                                WASTE MANAGEMENT HOLDINGS, INC.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:




<PAGE>   91




                                THE BANKS AND AGENTS:

                                BANKBOSTON, N.A., individually and as 
                                Administrative Agent



                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                BANK OF AMERICA, N.A.



                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                CHASE BANK OF TEXAS, N.A.



                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                DEUTSCHE BANK AG, NEW YORK BRANCH, individually
                                and as Documentation Agent


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                By:
                                   ------------------------------
                                   Name:
                                   Title:



<PAGE>   92



                                ABN AMRO BANK N.V.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                ALLFIRST BANK


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                BANCA DI ROMA


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                BANCA MONTE DEI PASCHI DI SIENA S.P.A.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                BANK HAPOALIM


                                By:
                                   ------------------------------
                                   Name:
                                   Title:



<PAGE>   93



                                BANK OF MONTREAL


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                THE BANK OF NEW YORK


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                THE BANK OF NOVA SCOTIA


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                BANK ONE, TEXAS, N.A.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                BANQUE NATIONALE DE PARIS


                                By:
                                   ------------------------------
                                   Name:
                                   Title:



<PAGE>   94



                                CARIPLO-CASSA DI RISPARMIO DELLE PROVINCIE 
                                LOMBARDE SPA


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                CITIBANK, N.A.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                COMERICA BANK


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                COMMERZBANK AG, NEW YORK AND GRAND CAYMAN 
                                BRANCHES


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                CREDIT LYONNAIS NEW YORK BRANCH


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


<PAGE>   95

                                CREDIT SUISSE FIRST BOSTON


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                DLJ CAPITAL FUNDING, INC.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                FIRST UNION NATIONAL BANK


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                FLEET BANK, N.A.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                THE INDUSTRIAL BANK OF JAPAN TRUST COMPANY


                                By:
                                   ------------------------------
                                   Name:
                                   Title:



<PAGE>   96



                                KBC BANK N.V.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                MELLON BANK, N.A.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                MICHIGAN NATIONAL BANK


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                MORGAN GUARANTY TRUST COMPANY OF NEW YORK


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                NORDDEUTSCHE LANDESBANK GIROZENTRALE, 
                                NEW YORK BRANCH


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

<PAGE>   97

                                PNC BANK, NATIONAL ASSOCIATION


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                ROYAL BANK OF CANADA


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                SUNTRUST BANK, ATLANTA


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                TORONTO DOMINION (TEXAS), INC.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                UNICREDITO ITALIANO, S.P.A.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:

                                WACHOVIA BANK, N.A.


                                By:
                                   ------------------------------
                                   Name:
                                   Title:
<PAGE>   98

                                WESTDEUTSCHE LANDESBANK GIROZENTRALE, 
                                NEW YORK BRANCH


                                By:
                                   ------------------------------
                                   Name:
                                   Title:


                                By:
                                   ------------------------------
                                   Name:
                                   Title: