ALLIED WASTE INDUSTRIES INC
8-K, 1998-08-21
REFUSE SYSTEMS
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                     SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 8-K


                                 CURRENT REPORT



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


        Date of Report (Date of earliest event reported) August 10, 1998


                          Allied Waste Industries, Inc.
               (Exact name of registrant as specified in charter)


                                    Delaware
                 (State or other jurisdiction of incorporation)


             0-19285                                    88-0228636
        (Commission File Number)              (IRS Employer Identification No.)


15880 N. Greenway/Hayden Loop, Suite 100
           Scottsdale, Arizona                            85260
     (Address of principal executive offices)           (Zip Code)


        Registrant's telephone number, including area code (602) 423-2946


                                 Not Applicable
          (Former name or former address, if changed since last report)







<PAGE>




Item 2.  Acquisition of Assets

               On August 10, 1998, Allied Waste Industries,  Inc. (the "Company"
               or  "Allied")  entered into a definitive  merger  agreement  with
               American Disposal Services, Inc. ("ADSI"). Under the terms of the
               agreement,  ADSI  shareholders will receive 1.65 shares of Allied
               common stock for each share of ADSI common stock or approximately
               40.7 million shares. The merger,  which is subject to shareholder
               approval,  is expected to be completed in the fourth quarter 1998
               and will be accounted for as a pooling-of-interests.

Item 7.  Financial Statements and Exhibits

        (a)    Financial Statements for Business Acquired

               Pursuant  to  Instruction  4 of Item 7(a) of Form 8-K,  financial
               statements  of  ADSI  are  not  provided  as  provision  of  such
               statements is impractical at this time.  Such required  financial
               statements will be filed no later than October 23, 1998.

        (b)    Pro Forma Financial Statements

               Pursuant  to  Instruction  2 of Item 7(b) of Form 8-K,  pro forma
               financial  statements  of the  Company  relative  to ADSI are not
               provided as provision of such  statements is impractical at this
               time. Such required pro forma financial  statements will be filed
               no later than October 23, 1998.

        (c)    Exhibits and Schedules

               The  following  exhibits and schedules are filed with this report
on Form 8-K:

               2    Agreement  and Plan of Merger dated as of August 10, 1998 by
                    and among Allied Waste Industries, Inc., AWIN II Acquisition
                    Corporation and American Disposal Services, Inc.

               10   Stock Option Agreement dated as of August 10, 1998 between 
                    American Disposal Services, Inc. and Allied Waste 
                    Industries, Inc.




















                                        2

<PAGE>




                                    SIGNATURE


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



                                      ALLIED WASTE INDUSTRIES, INC.


                                 By:              /s/PETER S. HATHAWAY
                                        ---------------------------------------
                                                    Peter S. Hathaway
                                     Vice President and Chief Accounting Officer




Date:  August 20, 1998
















                                        3




                          AGREEMENT AND PLAN OF MERGER

                           Dated as of August 10, 1998

                                  By and among

                          ALLIED WASTE INDUSTRIES, INC.

                         AWIN II Acquisition Corporation

                                       and

                        AMERICAN DISPOSAL SERVICES, INC.


<PAGE>



                                                   


                          AGREEMENT AND PLAN OF MERGER

         THIS  AGREEMENT  AND PLAN OF MERGER,  dated as of August 10, 1998 (this
"Agreement"),  is made and entered into by and among  Allied  Waste  Industries,
Inc., a Delaware  corporation  ("Parent"),  AWIN II Acquisition  Corporation,  a
Delaware corporation and a wholly-owned subsidiary of Parent ("Subsidiary"), and
American Disposal Services, Inc., a Delaware corporation (the "Company").

         WHEREAS, the Boards of Directors of Parent,  Subsidiary and the Company
have  approved the merger of  Subsidiary  with and into the Company on the terms
set forth in this Agreement (the "Merger"); and

         WHEREAS,  Parent,  Subsidiary  and the  Company  intend  the  Merger to
qualify as a tax-free  reorganization under the provisions of Section 368 of the
Internal  Revenue Code of 1986,  as amended (the  "Code"),  and the  regulations
thereunder.

         NOW,   THEREFORE,   in   consideration   of  the   premises   and   the
representations,  warranties,  covenants and agreements  contained  herein,  the
parties hereto, intending to be legally bound, agree as follows:

                                    ARTICLE I
                                   THE MERGER

         SECTION 1.1 The Merger. Upon the terms and subject to the conditions of
this Agreement,  at the Effective Time (as defined in Section 1.2) in accordance
with  the  General  Corporation  Law of the  State  of  Delaware  (the  "DGCL"),
Subsidiary shall be merged with and into the Company and the separate  existence
of  Subsidiary  shall  thereupon  cease.  The  Company  shall  be the  surviving
corporation  in the  Merger  and is  hereinafter  sometimes  referred  to as the
"Surviving Corporation."

         SECTION 1.2  Effective  Time of the  Merger.  The Merger  shall  become
effective  at  such  time  (the  "Effective  Time")  as  shall  be  stated  in a
certificate of merger, in a form mutually  acceptable to Parent and the Company,
to be filed with the  Secretary of State of the State of Delaware in  accordance
with  the  DGCL  (the  "Merger  Filing").   The  Merger  Filing  shall  be  made
simultaneously  with  or as  soon  as  practicable  after  the  closing  of  the
transactions  contemplated by this Agreement in accordance with Section 3.5. The
parties  acknowledge that it is their mutual desire and intent to consummate the
Merger as soon as practicable  after the date hereof.  Accordingly,  the parties
shall,  subject to the  provisions  hereof and to the fiduciary  duties of their
respective  boards of directors,  use all reasonable  efforts to consummate,  as
soon  as  practicable,  the  transactions  contemplated  by  this  Agreement  in
accordance with Section 3.5.

                                   ARTICLE II
                      THE SURVIVING AND PARENT CORPORATIONS

         SECTION  2.1   Certificate  of   Incorporation.   The   Certificate  of
Incorporation  of the Company as in effect  immediately  prior to the  Effective
Time shall be the  Certificate  of  Incorporation  of the Surviving  Corporation
after the Effective Time, and (subject to Section 7.10 hereof) thereafter may be
amended in accordance with its terms and as provided in the DGCL.

         SECTION 2.2 Bylaws.  The Bylaws of the Company as in effect immediately
prior to the  Effective  Time shall be the Bylaws of the  Surviving  Corporation
after the Effective Time and (subject to Section 7.10 hereof)  thereafter may be
amended in  accordance  with their terms and as provided by the  Certificate  of
Incorporation of the Surviving Corporation and the DGCL.

         SECTION 2.3 Directors. The directors of the Surviving Corporation shall
be as designated in Section 2.3 of the Parent Disclosure Schedule (as defined in
Article IV), and such directors shall serve in accordance with the Bylaws of the
Surviving  Corporation  until their  respective  successors  are duly elected or
appointed and qualified.

         SECTION 2.4 Officers.  The officers of Subsidiary in office immediately
prior to the Effective  Time shall be the officers of the Surviving  Corporation
after the Effective  Time, and such officers shall serve in accordance  with the
Bylaws of the Surviving  Corporation until their respective  successors are duly
elected or appointed and qualified.

                                   ARTICLE III
                              CONVERSION OF SHARES

         SECTION  3.1  Conversion  of  Company  Shares  in  the  Merger.  At the
Effective  Time,  by virtue of the Merger and  without any action on the part of
any holder of any capital stock of Parent or the Company:

         (a) each share of the common  stock,  par value $.01 per share,  of the
Company (the "Company Common Stock") shall,  subject to Sections 3.3 and 3.4, be
converted into the right to receive, without interest, 1.65 shares of the common
stock,  par  value  $.01 per  share,  of Parent  ("Parent  Common  Stock")  (the
"Exchange Ratio");

         (b) each share of capital stock of the Company, if any, owned by Parent
or any subsidiary of Parent or held in treasury by the Company or any subsidiary
of the Company  immediately prior to the Effective Time shall be canceled and no
consideration  shall be paid in exchange  therefor and shall cease to exist from
and after the Effective Time; and

         (c) each  unexpired  warrant to purchase  Company  Common Stock that is
outstanding  at  the  Effective  Time,   whether  or  not   exercisable,   shall
automatically  and  without  any  action on the part of the  holder  thereof  be
converted  into a warrant to purchase a number of shares of Parent  Common Stock
equal to the number of shares of Company  Common  Stock that could be  purchased
under such warrant  multiplied  by the Exchange  Ratio,  at a price per share of
Parent  Common  Stock  equal to the per  share  exercise  price of such  warrant
divided by the Exchange Ratio.

         SECTION 3.2 Conversion of Subsidiary  Shares. At the Effective Time, by
virtue of the  Merger and  without  any action on the part of Parent as the sole
stockholder of Subsidiary,  each issued and  outstanding  share of common stock,
par value $.01 per share,  of Subsidiary  ("Subsidiary  Common  Stock") shall be
converted  into one share of common  stock,  par value  $.01 per  share,  of the
Surviving Corporation.

         SECTION 3.3 Exchange of Certificates.

         (a) From and after the Effective  Time,  each holder of an  outstanding
certificate which immediately prior to the Effective Time represented  shares of
Company  Common  Stock shall be entitled to receive in exchange  therefor,  upon
surrender thereof to an exchange agent reasonably satisfactory to Parent and the
Company (the "Exchange Agent"),  a certificate or certificates  representing the
number of whole  shares of Parent  Common Stock to which such holder is entitled
pursuant  to  Section  3.1(a).  Notwithstanding  any  other  provision  of  this
Agreement,   (i)  until  holders  or  transferees  of  certificates  theretofore
representing  shares of Company Common Stock have  surrendered them for exchange
as provided  herein,  no  dividends  or other  distributions  shall be paid with
respect to any  shares  represented  by such  certificates  and no  payment  for
fractional  shares  shall  be  made,  and  (ii)  without  regard  to  when  such
certificates  representing  shares of Company Common Stock are  surrendered  for
exchange as provided herein, no interest shall be paid on any dividends or other
distributions  or  any  payment  for  fractional  shares.  Upon  surrender  of a
certificate which immediately prior to the Effective Time represented  shares of
Company Common Stock,  there shall be paid to the holder of such certificate the
amount of any dividends or other distributions which theretofore became payable,
but which were not paid by reason of the  foregoing,  with respect to the number
of whole  shares  of Parent  Common  Stock  represented  by the  certificate  or
certificates issued upon such surrender.

         (b) If any  certificate  for  shares  of Parent  Common  Stock is to be
issued in a name other than that in which the  certificate for shares of Company
Common  Stock  surrendered  in exchange  therefor is  registered,  it shall be a
condition of such exchange that the person  requesting  such exchange  shall pay
any applicable transfer or other taxes required by reason of such issuance.

         (c)  Within  five days  after the  Effective  Time,  Parent  shall make
available to the Exchange Agent the certificates  representing  shares of Parent
Common Stock required to effect the exchanges referred to in paragraph (a) above
and cash for payment of any fractional shares referred to in Section 3.4.

         (d) Within five days after the Effective  Time,  Parent shall cause the
Exchange Agent to mail to each holder of record of a certificate or certificates
that immediately prior to the Effective Time represented  outstanding  shares of
Company  Common Stock (the "Company  Certificates")  (i) a letter of transmittal
satisfactory  to the  Company  (which  shall  specify  that  delivery  shall  be
effected,  and risk of loss and title to the  Company  Certificates  shall pass,
only upon actual delivery of the Company  Certificates  to the Exchange  Agent),
and  (ii)  instructions  for  use in  effecting  the  surrender  of the  Company
Certificates in exchange for certificates  representing  shares of Parent Common
Stock.  Upon surrender of Company  Certificates for cancellation to the Exchange
Agent,  together  with a duly  executed  letter of  transmittal  and such  other
documents as the Exchange  Agent shall  reasonably  require,  the holder of such
Company  Certificates  shall be  entitled  to  receive  in  exchange  therefor a
certificate representing that number of whole shares of Parent Common Stock into
which the shares of Company Common Stock theretofore  represented by the Company
Certificates so surrendered shall have been converted pursuant to the provisions
of  Section  3.1(a),  and the  Company  Certificates  so  surrendered  shall  be
canceled.  Notwithstanding  the  foregoing,  neither the Exchange  Agent nor any
party hereto  shall be liable to a holder of shares of Company  Common Stock for
any  shares  of  Parent  Common  Stock or  dividends  or  distributions  thereon
delivered  to a public  official  pursuant  to  applicable  abandoned  property,
escheat or similar laws.

         (e)  Promptly  following  the date  which is  twelve  months  after the
Effective   Time,   the  Exchange  Agent  shall  deliver  to  Parent  all  cash,
certificates  (including  any Parent  Common  Stock) and other  documents in its
possession  relating to the  transactions  described in this Agreement,  and the
Exchange  Agent's duties shall terminate.  Thereafter,  each holder of a Company
Certificate may surrender such Company Certificate to the Surviving  Corporation
or Parent and (subject to  applicable  abandoned  property,  escheat and similar
laws) receive in exchange  therefor the Parent Common Stock,  together with cash
for the payment of any fractional shares referred to in Section 3.4, without any
interest  thereon.  Notwithstanding  the foregoing,  none of the Exchange Agent,
Parent,  Subsidiary, the Company or the Surviving Corporation shall be liable to
a holder of shares  of  Company  Common  Stock for any  shares of Parent  Common
Stock,  together with cash for the payment of any fractional  shares referred to
in Section 3.4, delivered to a public official pursuant to applicable  abandoned
property, escheat or similar laws.

         (f) In the event any Company  Certificate  shall have been lost, stolen
or  destroyed,  upon the  making  of an  affidavit  of that  fact by the  person
claiming such Company Certificate to be lost, stolen or destroyed, the Surviving
Corporation  shall issue in exchange for such lost,  stolen or destroyed Company
Certificate the Parent Common Stock deliverable in respect thereof determined in
accordance  with this  Article  III,  together  with cash for the payment of any
fractional  shares referred to in Section 3.4. When authorizing such issuance in
exchange therefor,  the Board of Directors of the Surviving  Corporation may, in
its discretion and as a condition precedent to the issuance thereof, require the
owner  of such  lost,  stolen  or  destroyed  Company  Certificate  to give  the
Surviving  Corporation such indemnity as it may reasonably  direct as protection
against  any claim  that may be made  against  the  Surviving  Corporation  with
respect  to the  Company  Certificate  alleged  to have  been  lost,  stolen  or
destroyed.

         SECTION  3.4  No  Fractional  Securities.   Notwithstanding  any  other
provision of this Agreement,  no certificates or scrip for fractional  shares of
Parent  Common  Stock shall be issued in the Merger and no Parent  Common  Stock
dividend,  stock split or interest shall relate to any fractional security,  and
such fractional  interests shall not entitle the owner thereof to vote or to any
other rights of a security holder. In lieu of any such fractional  shares,  each
holder of shares of Company Common Stock who would  otherwise have been entitled
to receive a  fraction  of a share of Parent  Common  Stock  upon  surrender  of
Company Certificates for exchange pursuant to this Article III shall be entitled
to  receive  from the  Exchange  Agent a cash  payment  equal  to such  fraction
multiplied  by the average  closing  price of Parent  Common Stock on the Nasdaq
National Market,  as reported by the Wall Street Journal,  during the 20 trading
days  immediately  preceding the  Effective  Time (the "Parent  Average  Trading
Price").

         SECTION 3.5 Closing.  The closing (the  "Closing") of the  transactions
contemplated by this Agreement shall take place at a location mutually agreeable
to Parent and the Company as promptly as  practicable  (but in any event  within
five business  days)  following the date on which the last of the conditions set
forth in Article VIII is fulfilled or waived, or at such other time and place as
Parent and the Company  shall  agree.  The date on which the  Closing  occurs is
referred to in this Agreement as the "Closing Date."

         SECTION 3.6 Closing of the Company's  Transfer  Books. At and after the
Effective Time,  holders of Company  Certificates shall cease to have any rights
as stockholders of the Company, except for the right to receive shares of Parent
Common  Stock  pursuant to Section 3.1 and the right to receive cash for payment
of fractional  shares  pursuant to Section 3.4. At the Effective Time, the stock
transfer  books of the  Company  shall be closed  and no  transfer  of shares of
Company Common Stock which were outstanding  immediately  prior to the Effective
Time shall  thereafter  be made.  If, after the Effective  Time,  subject to the
terms  and  conditions  of  this  Agreement,   Company   Certificates   formerly
representing  shares of Company  Common  Stock are  presented  to the  Surviving
Corporation,  they shall be canceled and  exchanged  for shares of Parent Common
Stock in accordance with this Article III, together with cash for the payment of
any fractional shares referred to in Section 3.4.

                                   ARTICLE IV
             REPRESENTATIONS AND WARRANTIES OF PARENT AND SUBSIDIARY

         Parent and  Subsidiary  jointly and severally  represent and warrant to
the Company that, except as set forth in the Disclosure Schedule dated as of the
date  hereof  and  signed  by an  authorized  officer  of  Parent  (the  "Parent
Disclosure Schedule"), it being agreed that disclosure of any item on the Parent
Disclosure  Schedule shall be deemed  disclosure with respect to all Sections of
this  Agreement if the  relevance of such item is  reasonably  apparent from the
face of the Parent Disclosure Schedule:

         SECTION  4.1  Organization  and  Qualification.   Each  of  Parent  and
Subsidiary  is a  corporation  duly  organized,  validly  existing  and in  good
standing under the laws of the state of its  incorporation and has the requisite
corporate  power  and  authority  to own,  lease  and  operate  its  assets  and
properties  and to carry on its business as it is now being  conducted.  Each of
Parent and Subsidiary is qualified to transact  business and is in good standing
in each jurisdiction in which the properties owned,  leased or operated by it or
the nature of the business conducted by it makes such  qualification  necessary,
except  where the  failure to be so  qualified  and in good  standing  would not
reasonably  be  expected  to have a  material  adverse  effect on the  business,
operations,  properties,  assets,  condition  (financial or other) or results of
operations of Parent and its subsidiaries,  taken as a whole (a "Parent Material
Adverse  Effect").  True,  accurate and complete  copies of each of Parent's and
Subsidiary's certificates of incorporation and bylaws, in each case as in effect
on the date hereof,  including all  amendments  thereto,  have  heretofore  been
delivered to the Company.

         SECTION 4.2  Capitalization.

         (a) As of July  31,  1998,  the  authorized  capital  stock  of  Parent
consisted of 200 million  shares of Parent Common Stock and 10 million shares of
preferred stock ("Parent Preferred Stock"). As of July 31, 1998, (i) 124,869,130
shares of Parent  Common  Stock were issued and  outstanding,  all of which were
validly issued and are fully paid,  nonassessable and free of preemptive rights,
(ii) no shares of Parent  Preferred  Stock were  issued and  outstanding,  (iii)
570,048  shares of Parent Common Stock and no shares of Parent  Preferred  Stock
were held in the  treasury of Parent,  (iv)  7,138,728  shares of Parent  Common
Stock were reserved for issuance upon exercise of options issued and outstanding
pursuant to the stock option plans of the Parent,  (v) 0 shares of Parent Common
Stock were reserved for issuance  upon  conversion  of  outstanding  convertible
debentures  or notes of the Parent,  and (vi)  647,827  shares of Parent  Common
Stock were reserved for issuance upon exercise of outstanding warrants. Assuming
conversion of all outstanding convertible debentures and outstanding convertible
notes of the Parent and the  exercise of all  outstanding  options,  warrants or
rights to purchase  Parent  Common  Stock,  as of July 31, 1998,  there would be
132,655,685  shares of Parent Common Stock issued and outstanding.  In addition,
as of July 31, 1998, no more than 14,181,286  shares of Parent Common Stock were
reserved for issuance in connection  with pending  acquisitions.  Since July 31,
1998,  except as permitted by the  Agreement,  (i) no shares of capital stock of
Parent have been issued except in connection  with the exercise or conversion of
the  instruments  referred to in the second  sentence of this Section 4.2(a) and
(ii) no options,  warrants,  securities  convertible  into, or commitments  with
respect to the  issuance of shares of capital  stock of Parent have been issued,
granted or made.

         (b) The authorized capital stock of Subsidiary consists of 1,000 shares
of  Subsidiary  Common  Stock,  of which 100 shares are issued and  outstanding,
which shares are owned beneficially and of record by Parent.

         (c)  Except as  disclosed  in the  Parent SEC  Reports  (as  defined in
Section  4.5)  or  in  Section  4.2(a)  or as  otherwise  contemplated  by  this
Agreement,  as of the  date  hereof,  there  are no  outstanding  subscriptions,
options,   calls,   contracts,   commitments,   understandings,    restrictions,
arrangements,  rights or warrants, including any right of conversion or exchange
under any outstanding security, instrument or other agreement and also including
any  rights  plan or other  anti-takeover  agreement,  obligating  Parent or any
subsidiary of Parent to issue, deliver or sell, or cause to be issued, delivered
or sold,  additional  shares of the capital stock of Parent or obligating Parent
or any subsidiary of Parent to grant, extend or enter into any such agreement or
commitment.  Except as  disclosed  in the  Parent SEC  Reports  or as  otherwise
contemplated  by this  Agreement,  there are no voting trusts,  proxies or other
agreements or  understandings  to which Parent or any  subsidiary of Parent is a
party or is bound with  respect to the voting of any shares of capital  stock of
Parent.  The shares of Parent Common Stock issued to stockholders of the Company
in the Merger will be at the Effective  Time duly  authorized,  validly  issued,
fully paid and  nonassessable,  free of preemptive  rights and will be issued in
compliance with all applicable securities and other laws.

         SECTION 4.3 Subsidiaries. Each direct and indirect corporate subsidiary
of Parent is duly  organized,  validly  existing and in good standing  under the
laws of its jurisdiction of incorporation and has the requisite  corporate power
and authority to own,  lease and operate its assets and  properties and to carry
on its business as it is now being  conducted  and each  subsidiary of Parent is
qualified to transact business, and is in good standing, in each jurisdiction in
which the  properties  owned,  leased  or  operated  by it or the  nature of the
business conducted by it makes such qualification necessary; except in all cases
where the failure to be so qualified and in good standing  would not  reasonably
be expected to have a Parent  Material  Adverse  Effect.  All of the outstanding
shares of capital  stock of each  corporate  subsidiary  of Parent  are  validly
issued,  fully paid,  nonassessable and free of preemptive rights, and are owned
directly  or  indirectly  by  Parent,  free  and  clear  of any  liens,  claims,
encumbrances,  security interests, equities and options of any nature whatsoever
except that such shares are pledged to secure Parent's credit facilities.  There
are no  subscriptions,  options,  warrants,  rights,  calls,  contracts,  voting
trusts,   proxies  or  other   commitments,   understandings,   restrictions  or
arrangements  relating to the issuance,  sale,  voting,  transfer,  ownership or
other  rights  with  respect  to any shares of  capital  stock of any  corporate
subsidiary of Parent,  including  any right of conversion or exchange  under any
outstanding security,  instrument or agreement.  As used in this Agreement,  the
term "subsidiary"  shall mean, when used with reference to any person or entity,
any corporation, partnership, joint venture or other entity of which such person
or entity  (either acting alone or together with its other  subsidiaries)  owns,
directly or indirectly,  50% or more of the stock or other voting interests, the
holders of which are  entitled  to vote for the  election  of a majority  of the
board  of  directors  or  any  similar   governing  body  of  such  corporation,
partnership, joint venture or other entity.

         SECTION 4.4  Authority; Non-Contravention; Approvals.

         (a) Parent and Subsidiary  each have full corporate power and authority
to enter into this Agreement and, subject to the Parent  Stockholders'  Approval
(as defined in Section 7.3(b)) and the Parent Required  Statutory  Approvals (as
defined in Section 4.4(c)), to consummate the transactions  contemplated hereby.
This  Agreement  has been  approved  by the  Boards of  Directors  of Parent and
Subsidiary  and the sole  stockholder  of  Subsidiary,  and no  other  corporate
proceedings  on the part of Parent or Subsidiary  are necessary to authorize the
execution and delivery of this Agreement or, except for the Parent Stockholders'
Approval,  the  consummation  by  Parent  and  Subsidiary  of  the  transactions
contemplated hereby. This Agreement has been duly executed and delivered by each
of Parent and Subsidiary,  and,  assuming the due  authorization,  execution and
delivery  hereof  by the  Company,  constitutes  a  valid  and  legally  binding
agreement of each of Parent and Subsidiary  enforceable  against each of them in
accordance  with its terms,  except that such  enforcement may be subject to (i)
bankruptcy,  insolvency,  reorganization,   moratorium  or  other  similar  laws
affecting or relating to  enforcement  of creditors'  rights  generally and (ii)
general equitable principles.

         (b) The execution,  delivery and  performance of this Agreement by each
of Parent and Subsidiary and the consummation of the Merger and the transactions
contemplated  hereby do not and will not violate,  conflict  with or result in a
breach of any  provision  of, or  constitute a default (or an event which,  with
notice or lapse of time or both, would constitute a default) under, or result in
the termination  of, or accelerate the  performance  required by, or result in a
right of termination  or  acceleration  under,  or result in the creation of any
lien,  security  interest or encumbrance upon any of the properties or assets of
Parent  or any of its  subsidiaries  under  any  of  the  terms,  conditions  or
provisions of (i) the  respective  certificates  of  incorporation  or bylaws of
Parent or any of its  subsidiaries,  (ii) any  statute,  law,  ordinance,  rule,
regulation,  judgment, decree, order, injunction, writ, permit or license of any
court or governmental  authority applicable to Parent or any of its subsidiaries
or any of their  respective  properties  or  assets,  or (iii) any  note,  bond,
mortgage,  indenture,  deed of trust, license,  franchise,  permit,  concession,
contract,  lease or other  instrument,  obligation  or  agreement of any kind to
which Parent or any of its subsidiaries is now a party or by which Parent or any
of its subsidiaries or any of their respective properties or assets may be bound
or affected.  The  consummation  by Parent and  Subsidiary  of the  transactions
contemplated  hereby  will  not  result  in  any  violation,  conflict,  breach,
termination,  acceleration  or  creation  of  liens  under  any  of  the  terms,
conditions or provisions described in clauses (i) through (iii) of the preceding
sentence,  subject  (x) in the  case  of the  terms,  conditions  or  provisions
described in clause (ii) above,  to obtaining  (prior to the Effective Time) the
Parent Required Statutory Approvals and the Parent Stockholder's  Approval,  and
(y) in the case of the terms, conditions or provisions described in clause (iii)
above,  to  obtaining  (prior to the  Effective  Time)  consents  required  from
commercial  lenders,  lessors or other  third  parties as  specified  in Section
4.4(b) of the Parent Disclosure Schedule.  Excluded from the foregoing sentences
of this  paragraph  (b),  insofar  as they  apply to the  terms,  conditions  or
provisions  described  in clauses  (ii) and (iii) of the first  sentence of this
paragraph  (b) (and  whether  resulting  from such  execution  and  delivery  or
consummation), are such violations, conflicts, breaches, defaults, terminations,
accelerations  or creations of liens,  security  interests or encumbrances  that
would not reasonably be expected to have a Parent Material Adverse Effect.

         (c)  Except   for  (i)  the   filings   by  Parent   required   by  the
Hart-Scott-Rodino  Antitrust  Improvements  Act of 1976,  as  amended  (the "HSR
Act"), (ii) the filing of the Registration  Statement and Joint Proxy Statement/
Prospectus  (as such terms are defined in Section 4.9) with the  Securities  and
Exchange Commission (the "SEC") pursuant to the Securities Exchange Act of 1934,
as amended (the "Exchange Act"), and the Securities Act of 1933, as amended (the
"Securities  Act"), and the declaration of the effectiveness  thereof by the SEC
and filings with  various  state blue sky  authorities,  (iii) the making of the
Merger Filing with the Secretary of State of the State of Delaware in connection
with the Merger, and (iv) any required filings with or approvals from the Nasdaq
National Market,  applicable  state  environmental  authorities,  public service
commissions and public utility  commissions (the filings and approvals  referred
to in clauses  (i)  through  (iv) are  collectively  referred  to as the "Parent
Required Statutory Approvals"), no declaration,  filing or registration with, or
notice  to, or  authorization,  consent or  approval  of,  any  governmental  or
regulatory body or authority is necessary for the execution and delivery of this
Agreement by Parent or Subsidiary or the consummation by Parent or Subsidiary of
the transactions  contemplated  hereby,  other than such declarations,  filings,
registrations, notices, authorizations, consents or approvals which, if not made
or  obtained,  as the case may be,  would not  reasonably  be expected to have a
Parent Material Adverse Effect.

         SECTION 4.5 Reports and  Financial  Statements.  Since January 1, 1996,
Parent has filed  with the SEC all  forms,  statements,  reports  and  documents
(including  all exhibits,  post-effective  amendments and  supplements  thereto)
required to be filed by it under each of the  Securities  Act,  the Exchange Act
and the respective rules and regulations thereunder, all of which, as amended if
applicable,  complied when filed in all material  respects  with all  applicable
requirements of the  appropriate  act and the rules and regulations  thereunder.
Parent  has  previously  delivered  or  made  available  to the  Company  copies
(including all exhibits,  post-effective  amendments and supplements thereto) of
its (a) Annual  Reports on Form 10-K for the fiscal year ended December 31, 1997
and for the immediately  preceding fiscal year, as filed with the SEC, (b) proxy
and  information  statements  relating to (i) all  meetings of its  stockholders
(whether  annual or special)  and (ii)  actions by written  consent in lieu of a
stockholders'  meeting from January 1, 1996, until the date hereof,  and (c) all
other reports, including quarterly reports, and registration statements filed by
Parent with the SEC since  January 1, 1996 (other than  registration  statements
filed on Form S-8) (the documents  referred to in clauses (a), (b) and (c) filed
prior to the  date  hereof  are  collectively  referred  to as the  "Parent  SEC
Reports").  As of their respective dates, the Parent SEC Reports did not contain
any  untrue  statement  of a  material  fact or omit to  state a  material  fact
required to be stated  therein or necessary to make the statements  therein,  in
the light of the circumstances  under which they were made, not misleading.  The
audited  consolidated  financial  statements of Parent  included in the Parent's
Annual Report on Form 10-K for the year ended  December 31, 1997  (collectively,
the  "Parent  Financial  Statements")  have been  prepared  in  accordance  with
generally accepted  accounting  principles applied on a consistent basis (except
as may be  indicated  therein or in the notes  thereto)  and fairly  present the
financial  position of Parent and its  subsidiaries  as of the dates thereof and
the  results of their  operations  and  changes in  financial  position  for the
periods then ended.

         SECTION 4.6 Absence of Undisclosed Liabilities.  Except as disclosed in
the Parent SEC Reports or as heretofore disclosed to the Company in writing with
respect to acquisitions or potential transactions or commitments, neither Parent
nor any of its subsidiaries had at December 31, 1997, or has incurred since that
date  and as of  the  date  hereof,  any  liabilities  or  obligations  (whether
absolute,   accrued,  contingent  or  otherwise)  of  any  nature,  except:  (a)
liabilities,  obligations  or  contingencies  (i) which are  accrued or reserved
against in the Parent Financial Statements or reflected in the notes thereto, or
(ii) which were  incurred  after  December  31, 1997,  and were  incurred in the
ordinary course of business and consistent with past practices; (b) liabilities,
obligations or contingencies  which (i) would not reasonably be expected to have
a Parent Material  Adverse Effect,  or (ii) have been discharged or paid in full
prior to the date hereof;  and (c) liabilities  and  obligations  which are of a
nature not required to be reflected in the consolidated  financial statements of
Parent and its  subsidiaries  prepared in  accordance  with  generally  accepted
accounting  principles  consistently  applied  and which  were  incurred  in the
ordinary course of business.

         SECTION 4.7 Absence of Certain Changes or Events. Since the date of the
most recent Parent SEC Report that contains consolidated financial statements of
Parent,  there has not been any  Parent  Material  Adverse  Effect,  except  for
changes that affect the industries in which Parent and its subsidiaries  operate
generally.

         SECTION 4.8 Litigation.  Except as disclosed in the Parent SEC Reports,
there are no claims,  suits, actions or proceedings pending or, to the knowledge
of Parent,  threatened  against,  relating to or affecting  Parent or any of its
subsidiaries,  before any court,  governmental department,  commission,  agency,
instrumentality or authority,  or any arbitrator that seek to restrain or enjoin
the consummation of the Merger or which if adversely determined would reasonably
be expected to have a Parent Material Adverse Effect. Except as set forth in the
Parent SEC Reports, neither Parent nor any of its subsidiaries is subject to any
judgment,  decree,  injunction,   rule  or  order  of  any  court,  governmental
department,  commission,  agency, instrumentality or authority or any arbitrator
which prohibits or restricts the consummation of the  transactions  contemplated
hereby or would reasonably be expected to have a Parent Material Adverse Effect.

         SECTION 4.9  Registration  Statement and Proxy  Statement.  None of the
information  to be supplied by Parent or its  subsidiaries  for inclusion in (a)
the Registration Statement on Form S-4 to be filed under the Securities Act with
the SEC by Parent in connection  with the Merger for the purpose of  registering
the shares of Parent Common Stock to be issued in the Merger (such  registration
statement,  together  with  any  amendments  thereof,  being  the  "Registration
Statement"), or (b) the proxy statement to be distributed in connection with the
Company's and Parent's  meetings of their  respective  stockholders to vote upon
this Agreement and the transactions  contemplated  hereby (the "Proxy Statement"
and, together with the prospectus  included in the Registration  Statement,  the
"Joint Proxy  Statement/Prospectus") will, in the case of the Proxy Statement or
any amendments thereof or supplements thereto, at the time of the mailing of the
Proxy  Statement and any amendments or supplements  thereto,  and at the time of
the meetings of  stockholders of the Company and Parent to be held in connection
with the  transactions  contemplated by this  Agreement,  or, in the case of the
Registration  Statement,  as  amended  or  supplemented,  at the time it becomes
effective  and at the time of such meetings of the  stockholders  of the Company
and Parent, contain any untrue statement of a material fact or omit to state any
material  fact  required to be stated  therein or necessary in order to make the
statements therein, in the light of the circumstances under which they are made,
not misleading.  The Joint Proxy  Statement/  Prospectus will, as of its mailing
date,  comply as to form in all  material  respects  with all  applicable  laws,
including  the  provisions  of the  Securities  Act and the Exchange Act and the
rules and regulations promulgated  thereunder,  except that no representation is
made by Parent or Subsidiary with respect to information supplied by the Company
or the stockholders of the Company for inclusion therein.

         SECTION 4.10 No Violation of Law. Except as disclosed in the Parent SEC
Reports,  neither Parent nor any of its  subsidiaries is in violation of, or has
been  given  written  notice or been  charged  with any  violation  of, any law,
statute,  order, rule, regulation,  ordinance,  or judgment (including,  without
limitation,  any applicable  environmental  law, ordinance or regulation) of any
governmental or regulatory body or authority,  except for violations which would
not reasonably be expected to have a Parent Material  Adverse Effect.  Except as
disclosed in the Parent SEC Reports,  as of the date of this  Agreement,  to the
knowledge  of  Parent,  no  investigation  or  review  by  any  governmental  or
regulatory body or authority is pending or threatened,  nor has any governmental
or  regulatory  body or  authority  indicated  an intention to conduct the same,
other than, in each case,  those the outcome of which,  as far as reasonably can
be foreseen,  would not reasonably be expected to have a Parent Material Adverse
Effect.  Parent and its  subsidiaries  have all permits,  licenses,  franchises,
variances,  exemptions,  orders and other governmental authorizations,  consents
and  approvals  necessary to conduct  their  businesses  as presently  conducted
(collectively,  the "Parent Permits"), except for permits, licenses, franchises,
variances,  exemptions,  orders,  authorizations,  consents  and  approvals  the
absence of which would not  reasonably  be  expected  to have a Parent  Material
Adverse Effect. Parent and its subsidiaries are not in violation of the terms of
any Parent Permit, except for delays in filing reports or violations which would
not reasonably be expected to have a Parent Material Adverse Effect.

         SECTION 4.11  Compliance  with  Agreements.  Except as disclosed in the
Parent SEC  Reports,  Parent and each of its  subsidiaries  are not in breach or
violation  of or in  default in the  performance  or  observance  of any term or
provision of, and no event has occurred which, with lapse of time or action by a
third party,  would result in a default under (a) the respective  certificate of
incorporation,  bylaws or other similar organizational  instruments of Parent or
any of its subsidiaries, or (b) any contract, commitment,  agreement, indenture,
mortgage,  loan  agreement,  note,  lease,  bond,  license,  approval  or  other
instrument to which Parent or any of its subsidiaries is a party or by which any
of them is bound or to which any of their  property is subject,  other than,  in
the case of clause (b) of this Section 4.11,  breaches,  violations and defaults
which would not reasonably be expected to have a Parent Material Adverse Effect.

         SECTION 4.12  Taxes.

         (a)  Parent  and  its  subsidiaries   have  (i)  duly  filed  with  the
appropriate  governmental  authorities  all Tax  Returns  (as defined in Section
4.12(c))  required to be filed by them for all periods ending on or prior to the
Effective Time,  other than those Tax Returns the failure of which to file would
not reasonably be expected to have a Parent Material  Adverse  Effect,  and such
Tax Returns are true,  correct and  complete in all  material  respects and (ii)
duly  paid in full or made  adequate  provision  in  accordance  with  generally
accepted  accounting  principles  for the  payment  of all Taxes (as  defined in
Section  4.12(b))  for all past and current  periods  which are due prior to the
date hereof.  The  liabilities  and  reserves for Taxes  reflected in the Parent
balance  sheet  included in the latest  Parent SEC Report to cover all Taxes for
all  periods  ending  at or prior to the date of such  balance  sheet  have been
determined in accordance with generally accepted accounting principles and there
is no  material  liability  for Taxes for any period  beginning  after such date
other  than Taxes  arising  in the  ordinary  course of  business.  There are no
material liens for Taxes upon any property or assets of Parent or any subsidiary
thereof, except for liens for Taxes not yet due or Taxes contested in good faith
and adequately reserved against in accordance with generally accepted accounting
principles.  There  are no  unresolved  issues of law or fact  arising  out of a
notice of  deficiency,  proposed  deficiency  or  assessment  from the  Internal
Revenue  Service (the "IRS") or any other  governmental  taxing  authority  with
respect to Taxes of the Parent or any of its subsidiaries which would reasonably
be expected to have a Parent  Material  Adverse  Effect.  Neither Parent nor its
subsidiaries  has waived any  statute  of  limitations  in respect of a material
amount of Taxes or agreed to any  extension  of time with  respect to a material
Tax  assessment or  deficiency  other than waivers and  extensions  which are no
longer in effect.  Neither Parent nor any of its  subsidiaries is a party to any
agreement  providing for the allocation or sharing of Taxes with any entity that
is not, directly or indirectly,  a wholly-owned  corporate  subsidiary of Parent
other  than  agreements  the  consequences  of which are  fully  and  adequately
reserved for in the Parent Financial  Statements.  Neither Parent nor any of its
corporate subsidiaries has, with regard to any assets or property held, acquired
or to be acquired by any of them,  filed a consent to the application of Section
341(f) of the Code.

         (b) For purposes of this  Agreement,  the term  "Taxes"  shall mean all
taxes, including, without limitation,  income, gross receipts, excise, property,
sales, withholding, social security, occupation, use, service, license, payroll,
franchise,  transfer and recording taxes,  fees and charges,  windfall  profits,
severance,  customs, import, export, employment or similar taxes, charges, fees,
levies or other assessments imposed by the United States, or any state, local or
foreign  government or  subdivision  or agency  thereof,  whether  computed on a
separate,  consolidated,  unitary,  combined,  or any other basis, and such term
shall  include any  interest,  fines,  penalties  or  additional  amounts of any
interest in respect of any additions, fines or penalties attributable or imposed
or with respect to any such taxes, charges, fees, levies or other assessments.

         (c) For purposes of this  Agreement,  the term "Tax Return"  shall mean
any  return,  report  or other  document  required  to be  supplied  to a taxing
authority in connection with Taxes.

         SECTION 4.13 Employee Benefit Plans; ERISA.

         (a) Except as disclosed in the Parent SEC Reports,  at the date hereof,
Parent  and its  subsidiaries  do not  maintain  or  contribute  to or have  any
obligation  or liability to or with  respect to any  material  employee  benefit
plans,  programs,  arrangements or practices,  including  employee benefit plans
within the meaning set forth in Section 3(3) of the Employee  Retirement  Income
Security  Act  of  1974,  as  amended  ("ERISA"),   or  other  similar  material
arrangements for the provision of benefits (excluding any "Multi-employer  Plan"
within the  meaning  of Section  3(37) of ERISA or a  "Multiple  Employer  Plan"
within  the  meaning  of  Section  413(c) of the Code)  (such  plans,  programs,
arrangements  or practices of Parent and its  subsidiaries  being referred to as
the "Parent Plans").  The Parent  Disclosure  Schedule lists all  Multi-employer
Plans  to  which  any of  them  makes  contributions  or has any  obligation  or
liability  to  make  material  contributions.  Neither  Parent  nor  any  of its
subsidiaries  maintains  or has  any  material  liability  with  respect  to any
Multiple  Employer  Plan.  Neither  Parent nor any of its  subsidiaries  has any
obligation  to  create or  contribute  to any  additional  such  plan,  program,
arrangement  or  practice  or to amend any such plan,  program,  arrangement  or
practice  so as to  increase  benefits or  contributions  thereunder,  except as
required  under  the  terms  of the  Parent  Plans,  under  existing  collective
bargaining agreements or to comply with applicable law.

         (b) Except as disclosed in the Parent SEC Reports,  (i) there have been
no prohibited  transactions within the meaning of Section 406 or 407 of ERISA or
Section  4975 of the Code with  respect  to any of the  Parent  Plans that could
result in penalties,  taxes or liabilities which would reasonably be expected to
have a Parent Material Adverse Effect, (ii) except for premiums due, there is no
outstanding  material  liability,  whether  measured  alone or in the aggregate,
under Title IV of ERISA with respect to any of the Parent  Plans,  (iii) neither
the  Pension  Benefit  Guaranty  Corporation  nor  any  plan  administrator  has
instituted  proceedings to terminate any of the Parent Plans subject to Title IV
of ERISA other than in a "standard  termination" described in Section 4041(b) of
ERISA,  (iv) none of the Parent  Plans has  incurred  any  "accumulated  funding
deficiency"  (as  defined in Section  302 of ERISA and Section 412 of the Code),
whether or not waived, as of the last day of the most recent fiscal year of each
of the Parent Plans ended prior to the date of this  Agreement,  (v) the current
present  value of all  projected  benefit  obligations  under each of the Parent
Plans which is subject to Title IV of ERISA did not, as of its latest  valuation
date, exceed the then current value of the assets of such plan allocable to such
benefit liabilities by more than the amount, if any, disclosed in the Parent SEC
Reports as of December 31, 1997,  based upon  reasonable  actuarial  assumptions
currently  utilized for such Parent Plan, (vi) each of the Parent Plans has been
operated and  administered  in accordance with applicable laws during the period
of time covered by the applicable statute of limitations, except for failures to
comply which would not reasonably be expected to have a Parent Material  Adverse
Effect,  (vii) each of the Parent  Plans  which is  intended  to be  "qualified"
within  the  meaning of Section  401(a) of the Code has been  determined  by the
Internal Revenue Service to be so qualified and such  determination has not been
modified, revoked or limited by failure to satisfy any condition thereof or by a
subsequent  amendment  thereto  or a  failure  to amend,  except  that it may be
necessary  to  make  additional   amendments   retroactively   to  maintain  the
"qualified"  status of such  Parent  Plans,  and the  period for making any such
necessary  retroactive  amendments  has not  expired,  (viii)  with  respect  to
Multi-employer  Plans,  neither Parent nor any of its  subsidiaries  has made or
suffered a "complete  withdrawal" or a "partial  withdrawal,"  as such terms are
respectively  defined  in  Sections  4203,  4204 and 4205 of ERISA  and,  to the
knowledge of Parent and its  subsidiaries,  no event has occurred or is expected
to occur  which  presents a material  risk of a complete  or partial  withdrawal
under such Sections 4203, 4204 and 4205, (ix) to the knowledge of Parent and its
subsidiaries,  there are no material pending,  threatened or anticipated  claims
involving any of the Parent Plans other than claims for benefits in the ordinary
course, (x) Parent and its subsidiaries have no current material liability under
Title IV of ERISA, and Parent and its subsidiaries do not reasonably  anticipate
that  any  such  liability  will  be  asserted  against  Parent  or  any  of its
subsidiaries,  and (xi) no act, omission or transaction  (individually or in the
aggregate)  has  occurred  with  respect to any Parent Plan that has resulted or
could  result in any  material  liability  (direct or indirect) of Parent or any
subsidiary  under  Sections  409 or  502(c)(i)  or (l) of ERISA or Chapter 43 of
Subtitle  (A) of the Code.  None of the  Parent  Controlled  Group  Plans has an
"accumulated funding deficiency" (as defined in Section 302 of ERISA and Section
412 of the Code) or is required to provide security to a Parent Plan pursuant to
Section 401(a)(29) of the Code.

         (c) The Parent SEC Reports contain a true and complete  summary or list
of or otherwise  describe all material  employment  contracts and other employee
benefit  arrangements  with  "change of control" or similar  provisions  and all
severance agreements with executive officers.

         SECTION 4.14 Labor Controversies. Except as disclosed in the Parent SEC
Reports, (a) there are no significant controversies pending or, to the knowledge
of Parent, threatened between Parent or its subsidiaries and any representatives
of any of their  employees,  and (b) to the  knowledge  of Parent,  there are no
material  organizational  efforts  presently  being  made  involving  any of the
presently  unorganized  employees of Parent and its subsidiaries except for such
controversies and organizational  efforts which would not reasonably be expected
to have a Parent Material Adverse Effect.

         SECTION  4.15  Environmental  Matters.  (a) Except as  disclosed in the
Parent SEC  Reports,  (i)  Parent  and its  subsidiaries  have  conducted  their
respective  businesses  in compliance  with all  applicable  Environmental  Laws
(defined in Section 4.15(b)), including, without limitation, having all permits,
licenses and other approvals and  authorizations  necessary for the operation of
their respective businesses as presently conducted,  (ii) none of the properties
owned by Parent  or any of its  subsidiaries  contain  any  Hazardous  Substance
(defined in Section 4.15(c)) as a result of any activity of Parent or any of its
subsidiaries   in  amounts   exceeding   the  levels   permitted  by  applicable
Environmental  Laws, (iii) since January 1, 1996,  neither Parent nor any of its
subsidiaries   has  received  any  notices,   demand  letters  or  requests  for
information  from any  Federal,  state,  local or  foreign  governmental  entity
indicating  that Parent or any of its  subsidiaries  may be in violation  of, or
liable  under,  any  Environmental  Law in  connection  with  the  ownership  or
operation  of  their   businesses,   (iv)  there  are  no  civil,   criminal  or
administrative  actions,  suits, demands,  claims,  hearings,  investigations or
proceedings  pending or threatened,  against  Parent or any of its  subsidiaries
relating to any violation,  or alleged violation,  of any Environmental Law, (v)
no  Hazardous  Substance  has been  disposed  of,  released  or  transported  in
violation  of any  applicable  Environmental  Law from any  properties  owned by
Parent or any of its  subsidiaries  as a result of any activity of Parent or any
of its  subsidiaries  during  the time such  properties  were  owned,  leased or
operated by Parent or any of its  subsidiaries,  and (vi)  neither  Parent,  its
subsidiaries  nor  any  of  their  respective  properties  are  subject  to  any
liabilities  or  expenditures  (fixed  or  contingent)  relating  to  any  suit,
settlement, court order, administrative order, regulatory requirement,  judgment
or claim asserted or arising under any Environmental  Law, except for violations
of the foregoing  clauses (i) through (vi) that would not reasonably be expected
to have a Parent Material Adverse Effect.

         (b) As used herein, "Environmental Law" means any Federal, state, local
or foreign law, statute,  ordinance,  rule, regulation,  code, license,  permit,
authorization,  approval,  consent,  legal doctrine,  order,  judgment,  decree,
injunction,  requirement or agreement with any  governmental  entity relating to
(x) the protection,  preservation or restoration of the environment  (including,
without limitation, air, water vapor, surface water, groundwater, drinking water
supply,  surface  land,  subsurface  land,  plant and  animal  life or any other
natural  resource) or to human health or safety,  or (y) the exposure to, or the
use, storage,  recycling,  treatment,  generation,  transportation,  processing,
handling, labeling,  production, release or disposal of Hazardous Substances, in
each  case  as  amended  and  as  in  effect  on  the  Closing  Date.  The  term
"Environmental Law" includes,  without limitation, (i) the Federal Comprehensive
Environmental  Response  Compensation  and Liability Act of 1980,  the Superfund
Amendments and  Reauthorization  Act, the Federal Water Pollution Control Act of
1972,  the  Federal  Clean Air Act,  the Federal  Clean  Water Act,  the Federal
Resource  Conservation  and Recovery Act of 1976  (including  the  Hazardous and
Solid Waste  Amendments  thereto),  the Federal Solid Waste Disposal Act and the
Federal Toxic  Substances  Control Act, the Federal  Insecticide,  Fungicide and
Rodenticide  Act,  and the Federal  Occupational  Safety and Health Act of 1970,
each as amended and as in effect on the Closing Date, and (ii) any common law or
equitable doctrine  (including,  without limitation,  injunctive relief and tort
doctrines such as negligence,  nuisance, trespass and strict liability) that may
impose liability or obligations for injuries or damages due to, or threatened as
a result of, the presence of, effects of or exposure to any Hazardous Substance.

         (c) As used herein, "Hazardous Substance" means any substance presently
or hereafter  listed,  defined,  designated or  classified as hazardous,  toxic,
radioactive,  or dangerous, or otherwise regulated, under any Environmental Law.
Hazardous Substance includes any substance to which exposure is regulated by any
government authority or any Environmental Law including, without limitation, any
toxic waste,  pollutant,  contaminant,  hazardous  substance,  toxic  substance,
hazardous  waste,  special  waste,  industrial  substance  or  petroleum  or any
derivative or by-product thereof,  radon,  radioactive  material,  asbestos,  or
asbestos  containing  material,  urea  formaldehyde  foam  insulation,  lead  or
polychlorinated biphenyls.

         SECTION  4.16  Non-competition  Agreements.   Neither  Parent  nor  any
subsidiary of Parent is a party to any agreement  which (i) purports to restrict
or prohibit in any material  respect any of them from,  directly or  indirectly,
engaging in any business  involving the collection,  interim storage,  transfer,
recovery,  processing,  recycling,  marketing  or disposal of rubbish,  garbage,
paper, textile wastes,  chemical or hazardous wastes, liquid and other wastes or
any other material business  currently  engaged in by Parent or the Company,  or
any  corporations  affiliated  with either of them,  and (ii) would  restrict or
prohibit the Company or any  subsidiary  of the Company  (other than the Company
and its  subsidiaries  that are  currently so  restricted  or  prohibited)  from
engaging in any such  business.  None of  Parent's  officers,  directors  or key
employees  is a party  to any  agreement  which,  by  virtue  of  such  person's
relationship  with  Parent,  restricts  in any  material  respect  Parent or any
subsidiary  of Parent  from,  directly  or  indirectly,  engaging  in any of the
businesses described above.

         SECTION 4.17 Title to Assets.  Parent and each of its  subsidiaries has
good and marketable  title in fee simple to all its real property and good title
to all its  leasehold  interests  and other  properties as reflected in the most
recent balance sheet  included in the Parent  Financial  Statements,  except for
such  properties and assets that have been disposed of in the ordinary course of
business since the date of such balance sheet,  free and clear of all mortgages,
liens, pledges, charges or encumbrances of any nature whatsoever, except (i) the
lien for  current  taxes,  payments of which are not yet  delinquent,  (ii) such
imperfections  in title  and  easements  and  encumbrances,  if any,  as are not
substantial in character,  amount or extent and do not  materially  detract from
the value or interfere with the present use of the property  subject  thereto or
affected  thereby,   or  otherwise   materially  impair  the  Parent's  business
operations  (in the  manner  presently  carried on by the  Parent),  or (iii) as
disclosed in the Parent SEC Reports, and except for such matters which would not
reasonably  be expected to have a Parent  Material  Adverse  Effect.  All leases
under which Parent  leases any real or personal  property are in good  standing,
valid and effective in accordance with their respective terms, and there is not,
under any of such  leases,  any  existing  default or event which with notice or
lapse of time or both would become a default  other than  failures to be in good
standing,  valid and  effective  and defaults  under such leases which would not
reasonably be expected to have a Parent Material Adverse Effect.

         SECTION  4.18  Reorganization  and  Pooling of  Interests.  None of the
Parent,  Subsidiary or, to their knowledge, any of their affiliates has taken or
agreed  or  intends  to take  any  action  or has any  knowledge  of any fact or
circumstance   that  would   prevent   the  Merger  from  (a)   constituting   a
reorganization  within the  meaning  of Section  368(a) of the Code or (b) being
treated  for  financial  accounting  purposes  as a "pooling  of  interests"  in
accordance  with  generally  accepted  accounting   principles  and  the  rules,
regulations and interpretations of the SEC (a "Pooling Transaction").  As of the
date hereof,  other than  directors  and officers of Parent and certain of their
affiliates,  to the knowledge of Parent, there are no "affiliates" of Parent, as
that term is used in  paragraphs  (c) and (d) of Rule 145  under the  Securities
Act.

         SECTION 4.19 Parent  Stockholders'  Approval.  The affirmative  vote of
stockholders  of Parent required for approval and adoption of this Agreement and
the Merger is a majority of the shares of Parent  Common Stock  outstanding  and
entitled to vote at a meeting of stockholders  (in order to approve an amendment
to the Articles of Incorporation of Parent to increase its authorized  shares of
Parent  Common  Stock in  addition  to the  issuance  of shares  pursuant to the
Merger).

         SECTION  4.20  Brokers and  Finders.  Parent has not  entered  into any
contract,  arrangement or understanding with any person or firm which may result
in the  obligation  of  Parent  to pay any  finder's  fees,  brokerage  or agent
commissions  or  other  like  payments  in  connection  with  the   transactions
contemplated  hereby.  There is no claim for payment by Parent of any investment
banking  fees,  finder's  fees,  brokerage  or agent  commissions  or other like
payments in connection  with the  negotiations  leading to this Agreement or the
consummation of the transactions contemplated hereby, except for fees payable to
Credit Suisse First Boston Corporation.

         SECTION 4.21 Opinion of Financial  Advisor.  The  financial  advisor of
Parent,  Credit Suisse First Boston Corporation,  has rendered an opinion to the
Board of Directors of Parent to the effect that as of the date of this Agreement
the Exchange  Ratio is fair to Parent from a financial  point of view;  it being
understood and  acknowledged  by the Company that such opinion has been rendered
for the benefit of the Board of  Directors of Parent and is not intended to, and
may not, be relied  upon by the  Company,  its  affiliates  or their  respective
subsidiaries.

         SECTION 4.22 Ownership of Company Common Stock.  Neither Parent nor any
of its subsidiaries  beneficially  owns any shares of Company Common Stock as of
the date hereof.

                                    ARTICLE V
                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         The Company  represents  and  warrants to Parent and  Subsidiary  that,
except as set forth in the  disclosure  schedule dated as of the date hereof and
signed  by an  authorized  officer  of  the  Company  (the  "Company  Disclosure
Schedule"),  it  being  agreed  that  disclosure  of any  item  on  the  Company
Disclosure  Schedule shall be deemed  disclosure with respect to all Sections of
this  Agreement if the  relevance of such item is  reasonably  apparent from the
face of the Company Disclosure Schedule:

         SECTION  5.1   Organization  and   Qualification.   The  Company  is  a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has the requisite  corporate power and authority to
own, lease and operate its assets and properties and to carry on its business as
it is now being conducted.  The Company is qualified to transact business and is
in good standing in each jurisdiction in which the properties  owned,  leased or
operated  by it or the  nature  of  the  business  conducted  by it  makes  such
qualification necessary, except where the failure to be so qualified and in good
standing would not  reasonably be expected to have a material  adverse effect on
the business, operations,  properties, assets, condition (financial or other) or
results of operations of the Company and its  subsidiaries,  taken as a whole (a
"Company  Material Adverse Effect").  True,  accurate and complete copies of the
Company's  certificate of incorporation and bylaws, in each case as in effect on
the  date  hereof,  including  all  amendments  thereto,  have  heretofore  been
delivered to Parent.

         SECTION 5.2  Capitalization.

         (a) The authorized  capital stock of the Company consists of 60,000,000
shares of Company Common Stock and 5,000,000 shares of preferred stock ("Company
Preferred Stock").  As of June 30, 1998, (i) 24,638,895 shares of Company Common
Stock were  issued and  outstanding,  all of which were  validly  issued and are
fully  paid,  nonassessable  and free of  preemptive  rights,  and no  shares of
Company  Preferred Stock were issued and outstanding,  (ii) no shares of Company
Common Stock and no shares of Company  Preferred Stock were held in the treasury
of the Company, (iii) 1,908,759 shares of Company Common Stock were reserved for
issuance upon exercise of options issued and outstanding, and (iv) 48,788 shares
of Company  Common Stock were reserved for issuance upon exercise of outstanding
warrants.  Assuming the exercise of all outstanding options, warrants and rights
to purchase Company Common Stock, as of June 30, 1998, there would be 26,596,442
shares of Company Common Stock issued and outstanding.  In addition,  as of June
30, 1998, no more than  2,542,896  shares of Company  Common Stock were reserved
for  issuance in  connection  with  pending  acquisitions.  Since June 30, 1998,
except as  permitted  by the  Agreement,  (i) no shares of capital  stock of the
Company  have  been  issued  except  in  connection  with  the  exercise  of the
instruments  referred to in the second  sentence of this Section 5.2(a) and (ii)
no options,  warrants,  securities convertible into, or commitments with respect
to the  issuance  of shares of capital  stock of the Company  have been  issued,
granted or made.

         (b) Except as  disclosed  in the  Company  SEC  Reports  (as defined in
Section  5.5) or as set  forth  in  Section  5.2(b)  of the  Company  Disclosure
Schedule or in Section  5.2(a),  as of the date hereof there were no outstanding
subscriptions,   options,   calls,   contracts,   commitments,   understandings,
restrictions,   arrangements,   rights  or  warrants,  including  any  right  of
conversion  or exchange  under any  outstanding  security,  instrument  or other
agreement and also including any rights plan or other  anti-takeover  agreement,
obligating  the Company or any  subsidiary  of the Company to issue,  deliver or
sell, or cause to be issued, delivered or sold, additional shares of the capital
stock of the Company or obligating  the Company or any subsidiary of the Company
to grant,  extend or enter  into any such  agreement  or  commitment.  Except as
disclosed  in the  Company  SEC  Reports or as  otherwise  contemplated  by this
Agreement,   there  are  no  voting  trusts,  proxies  or  other  agreements  or
understandings  to which the Company or any subsidiary of the Company is a party
or is bound with  respect  to the  voting of any shares of capital  stock of the
Company.

         SECTION 5.3 Subsidiaries. Each direct and indirect corporate subsidiary
of the Company is duly  organized,  validly  existing and in good standing under
the laws of its  jurisdiction of  incorporation  and has the requisite power and
authority to own,  lease and operate its assets and  properties  and to carry on
its business as it is now being  conducted and each subsidiary of the Company is
qualified to transact business, and is in good standing, in each jurisdiction in
which the  properties  owned,  leased  or  operated  by it or the  nature of the
business conducted by it makes such qualification necessary; except in all cases
where the failure to be so qualified and in good standing  would not  reasonably
be expected to have a Company  Material  Adverse Effect.  All of the outstanding
shares of capital stock of each corporate  subsidiary of the Company are validly
issued,  fully paid,  nonassessable  and free of preemptive rights and are owned
directly  or  indirectly  by the  Company  free and clear of any liens,  claims,
encumbrances, security interests, equities and options of any nature whatsoever,
except that such shares are pledged to secure the Company's  credit  facilities.
There are no subscriptions,  options, warrants, rights, calls, contracts, voting
trusts,   proxies  or  other   commitments,   understandings,   restrictions  or
arrangements  relating to the issuance,  sale,  voting,  transfer,  ownership or
other  rights  with  respect  to any shares of  capital  stock of any  corporate
subsidiary of the Company,  including any right of conversion or exchange  under
any outstanding security, instrument or agreement.

         SECTION 5.4  Authority; Non-Contravention; Approvals.

         (a) The Company has full  corporate  power and  authority to enter into
this Agreement and, subject to the Company Stockholders' Approval (as defined in
Section  7.3(a)) and the Company  Required  Statutory  Approvals  (as defined in
Section  5.4(c)),  to consummate  the  transactions  contemplated  hereby.  This
Agreement  has been  approved by the Board of Directors  of the Company,  and no
other  corporate  proceedings  on the  part  of the  Company  are  necessary  to
authorize  the  execution  and  delivery of this  Agreement  or,  except for the
Company  Stockholders'   Approval,  the  consummation  by  the  Company  of  the
transactions  contemplated  hereby.  This  Agreement  has been duly executed and
delivered by the Company,  and,  assuming the due  authorization,  execution and
delivery  hereof by  Parent  and  Subsidiary,  constitutes  a valid and  legally
binding agreement of the Company,  enforceable against the Company in accordance
with its terms,  except that such  enforcement may be subject to (a) bankruptcy,
insolvency,  reorganization,  moratorium  or other  similar  laws  affecting  or
relating to enforcement of creditors' rights generally and (b) general equitable
principles.

         (b) The  execution,  delivery and  performance of this Agreement by the
Company and the  consummation  of the Merger and the  transactions  contemplated
hereby do not and will not violate,  conflict  with or result in a breach of any
provision of, or  constitute a default (or an event which,  with notice or lapse
of time or both, would constitute a default) under, or result in the termination
of,  or  accelerate  the  performance  required  by,  or  result  in a right  of
termination  or  acceleration  under,  or  result in the  creation  of any lien,
security  interest or  encumbrance  upon any of the  properties or assets of the
Company  or any of its  subsidiaries  under  any  of the  terms,  conditions  or
provisions of (i) the respective  certificates of incorporation or bylaws of the
Company or any of its  subsidiaries,  (ii) any statute,  law,  ordinance,  rule,
regulation,  judgment, decree, order, injunction, writ, permit or license of any
court  or  governmental  authority  applicable  to  the  Company  or  any of its
subsidiaries or any of their respective properties or assets, or (iii) any note,
bond,  mortgage,   indenture,  deed  of  trust,  license,   franchise,   permit,
concession, contract, lease or other instrument,  obligation or agreement of any
kind to which the Company or any of its  subsidiaries is now a party or by which
the Company or any of its subsidiaries or any of their respective  properties or
assets  may be  bound  or  affected.  The  consummation  by the  Company  of the
transactions  contemplated  hereby will not result in any  violation,  conflict,
breach,  termination,  acceleration or creation of liens under any of the terms,
conditions or provisions described in clauses (i) through (iii) of the preceding
sentence,  subject  (x) in the  case  of the  terms,  conditions  or  provisions
described in clause (ii) above,  to obtaining  (prior to the Effective Time) the
Company Required Statutory Approvals and the Company Stockholders' Approval, and
(y) in the case of the terms, conditions or provisions described in clause (iii)
above,  to  obtaining  (prior to the  Effective  Time)  consents  required  from
commercial  lenders,  lessors or other  third  parties as  specified  in Section
5.4(b) of the Company Disclosure Schedule. Excluded from the foregoing sentences
of this  paragraph  (b),  insofar  as they  apply to the  terms,  conditions  or
provisions  described  in clauses  (ii) and (iii) of the first  sentence of this
paragraph  (b) (and  whether  resulting  from such  execution  and  delivery  or
consummation), are such violations, conflicts, breaches, defaults, terminations,
accelerations  or creations of liens,  security  interests or encumbrances  that
would not reasonably be expected to have a Company Material Adverse Effect.

         (c) Except for (i) the filings by the Company  required by the HSR Act,
(ii) the filing of the Joint Proxy Statement/Prospectus with the SEC pursuant to
the Exchange Act and the  Securities  Act, (iii) the making of the Merger Filing
with the  Secretary  of State of the State of  Delaware in  connection  with the
Merger,  and (iv) any required  filings with or approvals from applicable  state
environmental  authorities,   public  service  commissions  and  public  utility
commissions  (the filings and approvals  referred to in clauses (i) through (iv)
are collectively referred to as the "Company Required Statutory Approvals"),  no
declaration,  filing  or  registration  with,  or notice  to, or  authorization,
consent or approval  of, any  governmental  or  regulatory  body or authority is
necessary for the execution and delivery of this Agreement by the Company or the
consummation by the Company of the transactions  contemplated hereby, other than
such declarations, filings, registrations, notices, authorizations,  consents or
approvals  which,  if not  made or  obtained,  as the  case  may be,  would  not
reasonably be expected to have a Company Material Adverse Effect.

         SECTION 5.5 Reports and  Financial  Statements.  Since January 1, 1996,
the Company has filed with the SEC all material forms,  statements,  reports and
documents  (including all exhibits,  post-effective  amendments and  supplements
thereto)  required  to be filed  by it under  each of the  Securities  Act,  the
Exchange Act and the respective rules and regulations thereunder,  all of which,
as amended if applicable,  complied when filed in all material respects with all
applicable  requirements  of the  appropriate  act and the rules and regulations
thereunder.  The Company has  previously  delivered or made  available to Parent
copies  (including  all  exhibits,  post-effective  amendments  and  supplements
thereto) of its (a) Annual  Reports on Form 10-K for the year ended December 31,
1997, and for the immediately  preceding fiscal year, as filed with the SEC, (b)
proxy  and  information   statements   relating  to  (i)  all  meetings  of  its
stockholders  (whether annual or special) and (ii) actions by written consent in
lieu of a stockholders' meeting from January 1, 1996, until the date hereof, and
(c) all other reports,  including quarterly reports, and registration statements
filed by the Company with the SEC since January 1, 1996 (other than registration
statements  filed on Form S-8) (the  documents  referred to in clauses (a), (b),
and (c) filed  prior to the date  hereof  are  collectively  referred  to as the
"Company SEC Reports").  As of their  respective  dates, the Company SEC Reports
did not  contain  any untrue  statement  of a  material  fact or omit to state a
material fact required to be stated  therein or necessary to make the statements
therein,  in the light of the  circumstances  under  which they were  made,  not
misleading.  The  audited  consolidated  financial  statements  of  the  Company
included in the Company's Annual Report on Form 10-K for the twelve months ended
December 31, 1997 (collectively,  the "Company Financial  Statements") have been
prepared in accordance with generally accepted accounting  principles applied on
a consistent basis (except as may be indicated  therein or in the notes thereto)
and fairly present the financial position of the Company and its subsidiaries as
of the  dates  thereof  and the  results  of their  operations  and  changes  in
financial position for the periods then ended.

         SECTION 5.6 Absence of Undisclosed Liabilities.  Except as disclosed in
the Company SEC Reports or as  heretofore  disclosed  to Parent in writing  with
respect to  acquisitions or potential  transactions or commitments,  neither the
Company nor any of its  subsidiaries  had at December 31, 1997,  or has incurred
since  that  date and as of the date  hereof,  any  liabilities  or  obligations
(whether absolute,  accrued,  contingent or otherwise) of any nature, except (a)
liabilities,  obligations  or  contingencies  (i) which are  accrued or reserved
against in the Company Financial Statements or reflected in the notes thereto or
(ii) which were  incurred  after  December  31, 1997,  and were  incurred in the
ordinary course of business and consistent with past practices, (b) liabilities,
obligations or contingencies  which (i) would not reasonably be expected to have
a Company Material Adverse Effect,  or (ii) have been discharged or paid in full
prior to the date hereof,  and (c) liabilities  and  obligations  which are of a
nature not required to be reflected in the consolidated  financial statements of
the Company and its subsidiaries  prepared in accordance with generally accepted
accounting  principles  consistently  applied  and which  were  incurred  in the
ordinary course of business.

         SECTION 5.7 Absence of Certain Changes or Events. Since the date of the
most recent Company SEC Report that contains  consolidated  financial statements
of the Company,  there has not been any Company Material Adverse Effect,  except
for changes that affect the industries in which the Company and its subsidiaries
operate generally.

         SECTION  5.8  Litigation.  Except as  referred  to in the  Company  SEC
Reports,  there are no claims,  suits, actions or proceedings pending or, to the
knowledge  of the Company,  threatened  against,  relating to or  affecting  the
Company or any of its subsidiaries,  before any court,  governmental department,
commission, agency, instrumentality or authority, or any arbitrator that seek to
restrain the  consummation of the Merger or which if adversely  determined would
reasonably  be expected to have a Company  Material  Adverse  Effect.  Except as
referred  to in the  Company  SEC  Reports,  neither  the Company nor any of its
subsidiaries is subject to any judgment,  decree,  injunction,  rule or order of
any court,  governmental  department,  commission,  agency,  instrumentality  or
authority,  or any arbitrator  which prohibits or restricts the  consummation of
the transactions  contemplated  hereby or would reasonably be expected to have a
Company Material Adverse Effect.

         SECTION 5.9  Registration  Statement and Proxy  Statement.  None of the
information to be supplied by the Company or its  subsidiaries  for inclusion in
(a) the  Registration  Statement or (b) the Proxy Statement will, in the case of
the Proxy  Statement or any amendments  thereof or supplements  thereto,  at the
time of the mailing of the Proxy  Statement and any  amendments  or  supplements
thereto,  and at the time of the  meetings  of  stockholders  of the Company and
Parent  to be held in  connection  with the  transactions  contemplated  by this
Agreement  or,  in the  case  of  the  Registration  Statement,  as  amended  or
supplemented,  at the time it becomes effective and at the time of such meetings
of the stockholders of the Company and Parent, contain any untrue statement of a
material fact or omit to state any material  fact required to be stated  therein
or  necessary  in order  to make the  statements  therein,  in the  light of the
circumstances  under  which  they are made,  not  misleading.  The  Joint  Proxy
Statement/Prospectus  will  comply,  as of its mailing  date,  as to form in all
material  respects with all  applicable  laws,  including the  provisions of the
Securities  Act and the Exchange Act and the rules and  regulations  promulgated
thereunder, except that no representation is made by the Company with respect to
information  supplied by Parent,  Subsidiary  or any  stockholder  of Parent for
inclusion therein.

         SECTION 5.10 No  Violation  of Law.  Except as disclosed in the Company
SEC Reports,  neither the Company nor any of its subsidiaries is in violation of
or has been given written notice or been charged with any violation of, any law,
statute,  order, rule,  regulation,  ordinance or judgment  (including,  without
limitation,  any applicable  environmental  law, ordinance or regulation) of any
governmental or regulatory body or authority,  except for violations which would
not reasonably be expected to have a Company Material Adverse Effect.  Except as
disclosed in the Company SEC Reports,  as of the date of this Agreement,  to the
knowledge of the Company,  no  investigation  or review by any  governmental  or
regulatory body or authority is pending or threatened,  nor has any governmental
or  regulatory  body or  authority  indicated  an intention to conduct the same,
other than, in each case,  those the outcome of which,  as far as reasonably can
be foreseen, would not reasonably be expected to have a Company Material Adverse
Effect. The Company and its subsidiaries have all permits, licenses, franchises,
variances,  exemptions,  orders and other governmental authorizations,  consents
and  approvals  necessary to conduct  their  businesses  as presently  conducted
(collectively, the "Company Permits"), except for permits, licenses, franchises,
variances,  exemptions,  orders,  authorizations,  consents  and  approvals  the
absence of which would not  reasonably  be  expected to have a Company  Material
Adverse  Effect.  The Company and its  subsidiaries  are not in violation of the
terms of any Company  Permit,  except for delays in filing reports or violations
which  would not  reasonably  be  expected  to have a Company  Material  Adverse
Effect.

         SECTION 5.11  Compliance  with  Agreements.  Except as disclosed in the
Company SEC Reports,  the Company and each of its subsidiaries are not in breach
or violation of or in default in the  performance  or  observance of any term or
provision of, and no event has occurred which, with lapse of time or action by a
third party, would result in a default under, (a) the respective certificates of
incorporation,  bylaws or similar  organizational  instruments of the Company or
any of its subsidiaries, or (b) any contract, commitment,  agreement, indenture,
mortgage,  loan  agreement,  note,  lease,  bond,  license,  approval  or  other
instrument  to which the  Company  or any of its  subsidiaries  is a party or by
which any of them is bound or to which any of their  property is subject,  other
than, in the case of clause (b) of this Section 5.11,  breaches,  violations and
defaults  which would not  reasonably  be  expected  to have a Company  Material
Adverse Effect.

         SECTION  5.12 Taxes.  The Company  and its  subsidiaries  have (i) duly
filed with the appropriate  governmental authorities all Tax Returns required to
be filed by them for all periods ending on or prior to the Effective Time, other
than those Tax  Returns  the  failure of which to file would not  reasonably  be
expected to have a Company  Material  Adverse  Effect,  and such Tax Returns are
true, correct and complete in all material respects,  and (ii) duly paid in full
or made adequate  provision in accordance  with  generally  accepted  accounting
principles  for the payment of all Taxes for all past and current  periods which
are due  prior to the date  hereof.  The  liabilities  and  reserves  for  Taxes
reflected in the Company balance sheet included in the latest Company SEC Report
to  cover  all  Taxes  for all  periods  ending  at or prior to the date of such
balance  sheet  have been  determined  in  accordance  with  generally  accepted
accounting  principles,  and there is no  material  liability  for Taxes for any
period beginning after such date other than Taxes arising in the ordinary course
of business. There are no material liens for Taxes upon any property or asset of
the Company or any subsidiary thereof, except for liens for Taxes not yet due or
Taxes contested in good faith and adequately reserved against in accordance with
generally accepted accounting principles.  There are no unresolved issues of law
or fact arising out of a notice of deficiency, proposed deficiency or assessment
from the IRS or any other governmental taxing authority with respect to Taxes of
the Company or any of its  subsidiaries  which would  reasonably  be expected to
have a Company Material Adverse Effect. Neither the Company nor its subsidiaries
has waived any statute of limitations  in respect of a material  amount of Taxes
or agreed to any extension of time with respect to a material Tax  assessment or
deficiency  other than  waivers  and  extensions  which are no longer in effect.
Neither  the  Company nor any of its  subsidiaries  is a party to any  agreement
providing  for the  allocation  or sharing of Taxes with any entity that is not,
directly or  indirectly,  a wholly-owned  corporate  subsidiary of Company other
than agreements the consequences of which are fully and adequately  reserved for
in  the  Company  Financial  Statements.  Neither  the  Company  nor  any of its
corporate subsidiaries has, with regard to any assets or property held, acquired
or to be acquired by any of them,  filed a consent to the application of Section
341(f) of the Code.

         SECTION 5.13 Employee Benefit Plans; ERISA.

         (a) Except as disclosed in the Company SEC Reports, at the date hereof,
the Company and its  subsidiaries  do not maintain or  contribute to or have any
obligation  or liability to or with  respect to any  material  employee  benefit
plans,  programs,  arrangements or practices,  including  employee benefit plans
within the meaning set forth in Section 3(3) of ERISA, or other similar material
arrangements for the provision of benefits (excluding any "Multi-employer  Plan"
within the  meaning  of Section  3(37) of ERISA or a  "Multiple  Employer  Plan"
within  the  meaning  of  Section  413(c) of the Code)  (such  plans,  programs,
arrangements or practices of the Company and its subsidiaries  being referred to
as  the  "Company   Plans").   The  Company   Disclosure   Schedule   lists  all
Multi-employer  Plans  to  which  any of  them  makes  contributions  or has any
obligation or liability to make material contributions.  Neither the Company nor
any of its subsidiaries  maintains or has any material liability with respect to
any Multiple Employer Plan.  Neither the Company nor any of its subsidiaries has
any  obligation to create or contribute to any  additional  such plan,  program,
arrangement  or  practice  or to amend any such plan,  program,  arrangement  or
practice  so as to  increase  benefits or  contributions  thereunder,  except as
required  under  the  terms of the  Company  Plans,  under  existing  collective
bargaining agreements or to comply with applicable law.

         (b) Except as disclosed in the Company SEC Reports, (i) there have been
no prohibited  transactions within the meaning of Section 406 or 407 of ERISA or
Section  4975 of the Code with  respect to any of the  Company  Plans that could
result in penalties,  taxes or liabilities which would reasonably be expected to
have a Company Material  Adverse Effect,  (ii) except for premiums due, there is
no outstanding  material liability,  whether measured alone or in the aggregate,
under Title IV of ERISA with respect to any of the Company Plans,  (iii) neither
the  Pension  Benefit  Guaranty  Corporation  nor  any  plan  administrator  has
instituted proceedings to terminate any of the Company Plans subject to Title IV
of ERISA other than in a "standard  termination" described in Section 4041(b) of
ERISA,  (iv) none of the Company  Plans has  incurred any  "accumulated  funding
deficiency"  (as  defined in Section  302 of ERISA and Section 412 of the Code),
whether or not waived, as of the last day of the most recent fiscal year of each
of the Company Plans ended prior to the date of this Agreement,  (v) the current
present value of all  projected  benefit  obligations  under each of the Company
Plans which is subject to Title IV of ERISA did not, as of its latest  valuation
date, exceed the then current value of the assets of such plan allocable to such
benefit  liabilities by more than the amount,  if any,  disclosed in the Company
SEC Reports as of December 31, 1997, based upon reasonable actuarial assumptions
currently  utilized for such Company  Plan,  (vi) each of the Company  Plans has
been operated and  administered  in accordance  with  applicable laws during the
period of time  covered by the  applicable  statute of  limitations,  except for
failures  to comply  which  would not  reasonably  be expected to have a Company
Material Adverse Effect, (vii) each of the Company Plans which is intended to be
"qualified" within the meaning of Section 401(a) of the Code has been determined
by the Internal  Revenue Service to be so qualified and such  determination  has
not been  modified,  revoked or limited  by  failure  to satisfy  any  condition
thereof or by a subsequent  amendment thereto or a failure to amend, except that
it may be necessary to make additional amendments  retroactively to maintain the
"qualified"  status of such  Company  Plans,  and the period for making any such
necessary  retroactive  amendments  has not  expired,  (viii)  with  respect  to
Multi-employer  Plans,  neither the Company nor any of its subsidiaries has made
or suffered a "complete withdrawal" or a "partial withdrawal," as such terms are
respectively  defined in Sections 4203,  4204 and 4205 of ERISA and, to the best
knowledge  of the  Company  and its  subsidiaries,  no event has  occurred or is
expected  to occur  which  presents  a material  risk of a  complete  or partial
withdrawal under such Sections 4203, 4204 and 4205, (ix) to the knowledge of the
Company and its  subsidiaries,  there are no  material  pending,  threatened  or
anticipated  claims  involving  any of the  Company  Plans other than claims for
benefits in the ordinary course,  (x) the Company and its  subsidiaries  have no
current  material  liability  under  Title IV of ERISA,  and the Company and its
subsidiaries  do not  reasonably  anticipate  that  any such  liability  will be
asserted  against  the  Company  or any of its  subsidiaries,  and  (xi) no act,
omission or  transaction  (individually  or in the  aggregate) has occurred with
respect to any Company  Plan that has  resulted or could  result in any material
liability  (direct or indirect) of the Company or any subsidiary  under Sections
409 or 502(c)(1) or (l) of ERISA or Chapter 43 of Subtitle (A) of the Code. None
of the Company  Controlled Group Plans has an "accumulated  funding  deficiency"
(as  defined in Section 302 of ERISA and Section 412 of the Code) or is required
to provide  security to a Company  Plan  pursuant to Section  401(a)(29)  of the
Code.

         (c) The Company SEC Reports contain a true and complete summary or list
of or otherwise  describe all material  employment  contracts and other employee
benefit  arrangements  with  "change of control" or similar  provisions  and all
severance agreements with executive officers.

         (d) Except as  disclosed in Section  7.12(b) of the Company  Disclosure
Schedule,  there are no  agreements  which will or may  provide  payments to any
officer, employee,  stockholder,  or highly compensated individual which will be
"parachute  payments"  under Code  Section  280G that are  nondeductible  to the
Company or subject to tax under Code  Section  4999 for which the Company or any
ERISA Affiliate would have withholding liability.

         SECTION  5.14 Labor  Controversies.  Except as disclosed in the Company
SEC  Reports,  (a) there are no  significant  controversies  pending  or, to the
knowledge of the Company, threatened between the Company or its subsidiaries and
any  representatives of any of their employees,  and (b) to the knowledge of the
Company,  there are no  material  organizational  efforts  presently  being made
involving  any of the  presently  unorganized  employees  of the  Company or its
subsidiaries,  except for such controversies and organizational  efforts,  which
would not reasonably be expected to have a Company Material Adverse Effect.

         SECTION 5.15 Environmental Matters.  Except as disclosed in the Company
SEC  Reports,  (i)  the  Company  and  its  subsidiaries  have  conducted  their
respective  businesses in compliance  with all  applicable  Environmental  Laws,
including, without limitation,  having all permits, licenses and other approvals
and authorizations necessary for the operation of their respective businesses as
presently conducted,  (ii) none of the properties owned by the Company or any of
its subsidiaries  contain any Hazardous Substance as a result of any activity of
the Company or any of its subsidiaries in amounts exceeding the levels permitted
by  applicable  Environmental  Laws,  (iii) since  January 1, 1996,  neither the
Company nor any of its subsidiaries has received any notices,  demand letters or
requests for information from any Federal,  state, local or foreign governmental
entity  indicating  that  the  Company  or  any of  its  subsidiaries  may be in
violation  of, or liable under,  any  Environmental  Law in connection  with the
ownership or operation of their businesses, (iv) there are no civil, criminal or
administrative  actions,  suits, demands,  claims,  hearings,  investigations or
proceedings   pending  or  threatened,   against  the  Company  or  any  of  its
subsidiaries   relating  to  any  violation,   or  alleged  violation,   of  any
Environmental Law, (v) no Hazardous  Substance has been disposed of, released or
transported in violation of any applicable Environmental Law from any properties
owned by the Company or any of its  subsidiaries  as a result of any activity of
the  Company or any of its  subsidiaries  during the time such  properties  were
owned,  leased or operated by the Company or any of its  subsidiaries,  and (vi)
neither the Company, its subsidiaries nor any of their respective properties are
subject  to any  material  liabilities  or  expenditures  (fixed or  contingent)
relating to any suit, settlement,  court order, administrative order, regulatory
requirement,  judgment or claim asserted or arising under any Environmental Law,
except for  violations of the foregoing  clauses (i) through (vi) that would not
reasonably be expected to have a Company Material Adverse Effect.

         SECTION  5.16  Non-competition  Agreements.  Except as disclosed in the
Company SEC Reports,  neither the Company nor any subsidiary of the Company is a
party to any  agreement  which (i)  purports  to  restrict  or  prohibit  in any
material  respect  any of them or any  corporation  affiliated  with any of them
from, directly or indirectly, engaging in any business involving the collection,
interim  storage,  transfer,  recovery,  processing,   recycling,  marketing  or
disposal of rubbish,  garbage,  paper,  textile  wastes,  chemical or  hazardous
wastes, liquid and other wastes or any other material business currently engaged
in by Parent or the Company, or any corporations affiliated with either of them,
and (ii) would  restrict  or  prohibit  Parent or any  subsidiary  of the Parent
(other than the Company and its subsidiaries that are currently so restricted or
prohibited)  from engaging in such  business.  None of the  Company's  officers,
directors or key employees is a party to any agreement  which, by virtue of such
person's  relationship  with the Company,  restricts in any material respect the
Company  or any  subsidiary  or  affiliate  of the  Company  from,  directly  or
indirectly, engaging in any of the businesses described above.

         SECTION 5.17 Title to Assets.  The Company and each of its subsidiaries
has good and  marketable  title in fee simple to all its real  property and good
title to all its leasehold  interests and other properties,  as reflected in the
most recent balance sheet included in the Company Financial  Statements,  except
for properties  and assets that have been disposed of in the ordinary  course of
business since the date of such balance sheet,  free and clear of all mortgages,
liens, pledges, charges or encumbrances of any nature whatsoever, except (i) the
lien for  current  taxes,  payments of which are not yet  delinquent,  (ii) such
imperfections  in title  and  easements  and  encumbrances,  if any,  as are not
substantial in character,  amount or extent and do not  materially  detract from
the value, or interfere with the present use of the property  subject thereto or
affected  thereby,  or  otherwise   materially  impair  the  Company's  business
operations  (in the manner  presently  carried on by the  Company),  or (iii) as
disclosed  in the Company SEC Reports,  and except for such matters  which would
not reasonably be expected to have a Company Material Adverse Effect. All leases
under  which  the  Company  leases  any real or  personal  property  are in good
standing,  valid and effective in accordance with their  respective  terms,  and
there is not, under any of such leases, any existing default or event which with
notice or lapse of time or both would become a default other than failures to be
in good standing, valid and effective and defaults under such leases which would
not reasonably be expected to have a Company Material Adverse Effect.

         SECTION  5.18  Reorganization  and  Pooling of  Interests.  Neither the
Company nor, to the knowledge of the Company, any of its affiliates has taken or
agreed  or  intends  to take  any  action  or has any  knowledge  of any fact or
circumstance   that  would   prevent   the  Merger  from  (a)   constituting   a
reorganization  within the  meaning  of Section  368(a) of the Code or (b) being
treated for financial  accounting purposes as a Pooling  Transaction.  As of the
date hereof,  other than directors and officers of the Company, to the knowledge
of the Company,  there are no "affiliates" of the Company,  as that term is used
in paragraphs (c) and (d) of Rule 145 under the Securities Act.

         SECTION 5.19 Company  Stockholders'  Approval.  The affirmative vote of
stockholders of the Company required for approval and adoption of this Agreement
and the Merger is a majority of the  outstanding  shares of Company Common Stock
entitled to vote thereon.

         SECTION 5.20 Brokers and Finders.  The Company has not entered into any
contract,  arrangement or understanding with any person or firm which may result
in the  obligation of the Company to pay any finder's  fees,  brokerage or agent
commissions  or  other  like  payments  in  connection  with  the   transactions
contemplated  hereby.  There is no  claim  for  payment  by the  Company  of any
investment banking fees, finder's fees,  brokerage or agent commissions or other
like payments in connection with the  negotiations  leading to this Agreement or
the consummation of the transactions contemplated hereby other than fees payable
to CIBC Oppenheimer & Co., as disclosed in the Company Disclosure Schedule.

         SECTION 5.21 Opinion of Financial Advisor. The financial advisor of the
Company,  CIBC  Oppenheimer  & Co.,  has  rendered  an  opinion  to the Board of
Directors  of the  Company  to the  effect  that,  as of the date  thereof,  the
Exchange Ratio is fair from a financial  point of view to the holders of Company
Common Stock; it being understood and acknowledged by Parent and Subsidiary that
such opinion has been  rendered for the benefit of the Board of Directors of the
Company  and is not  intended  to, and may not,  be relied  upon by Parent,  its
affiliates or their respective subsidiaries.

                                   ARTICLE VI
                     CONDUCT OF BUSINESS PENDING THE MERGER

         SECTION 6.1  Conduct of  Business  by the  Company  Pending the Merger.
Except as otherwise  contemplated  by this Agreement or disclosed in Section 6.1
of the  Company  Disclosure  Schedule,  after the date  hereof  and prior to the
Closing  Date or earlier  termination  of this  Agreement,  unless  Parent shall
otherwise agree in writing,  the Company shall, and shall cause its subsidiaries
to:

         (a)      conduct their  respective  businesses in the ordinary and 
usual course of business and consistent with past practice;

         (b) not (i) amend or propose to amend their respective  certificates of
incorporation or bylaws,  (ii) split,  combine or reclassify  their  outstanding
capital stock or (iii)  declare,  set aside or pay any dividend or  distribution
payable  in cash,  stock,  property  or  otherwise,  except  for the  payment of
dividends or  distributions  to the Company by a wholly-owned  subsidiary of the
Company;

         (c) not issue,  sell,  pledge or dispose  of, or agree to issue,  sell,
pledge or dispose  of, any  additional  shares of, or any  options,  warrants or
rights of any kind to acquire any shares of their  capital stock of any class or
any debt or equity securities  convertible into or exchangeable for such capital
stock,  except  that  (i) the  Company  may  issue  shares  upon  conversion  of
convertible  securities and exercise of options and warrants  outstanding on the
date  hereof,  (ii) the Company  may issue  shares of Company  Common  Stock (or
warrants  or  options  to  acquire  Company  Common  Stock) in  connection  with
acquisitions  of assets or businesses  pursuant to the proviso of Section 6.1(d)
and (iii) the  Company  may issue  shares of Company  Common  Stock  pursuant to
earnouts from previously completed  transactions in accordance with the existing
terms of the agreements relating thereto;

         (d) not (i) incur or become  contingently  liable  with  respect to any
indebtedness for borrowed money other than (A) borrowings in the ordinary course
of business (other than pursuant to credit  facilities) or borrowings  under the
existing  credit  facilities of the Company or any of its  subsidiaries  as such
facilities  may be  amended in a manner  that does not have a  material  adverse
effect on the Company  (the  "Existing  Credit  Facilities")  up to the existing
borrowing  limit  on the date  hereof,  (B)  borrowings  to  refinance  existing
indebtedness  on  terms  which  are  reasonably  acceptable  to  Parent,  or (C)
borrowings in connection  with  acquisitions as set forth in the proviso in this
Section 6.1(d), (ii) redeem,  purchase,  acquire or offer to purchase or acquire
any shares of its capital  stock or any  options,  warrants or rights to acquire
any of its capital stock or any security  convertible  into or exchangeable  for
its capital stock,  (iii) take any action that would jeopardize the treatment of
the Merger as a pooling of  interests  under  Opinion  No. 16 of the  Accounting
Principles  Board  ("APB No.  16"),  (iv) take or fail to take any action  which
action or failure to take action  would  cause the  Company or its  stockholders
(except to the extent that any  stockholders  receive cash in lieu of fractional
shares and except to the extent of  stockholders  in special  circumstances)  to
recognize  gain or loss for  federal  income  tax  purposes  as a result  of the
consummation of the Merger or would otherwise cause the Merger not to qualify as
a  reorganization  under Section 368(a) of the Code, (v) make any acquisition of
any assets or  businesses  other than  expenditures  for  current  assets in the
ordinary course of business and  expenditures for fixed or capital assets in the
ordinary  course of business  and other than as set forth in the proviso in this
Section 6.1(d), (vi) sell, pledge, dispose of or encumber any material assets or
businesses  other than (A) sales of businesses or assets in the ordinary  course
of business,  (B) sales of businesses or assets  disclosed in Section 6.1 of the
Company  Disclosure  Schedule,  (C) sales of businesses or assets with aggregate
1997 revenues of less than $5 million, and (D) pledges or encumbrances  pursuant
to Existing Credit Facilities or other permitted borrowings,  or (vii) except as
contemplated  by  the  following  proviso,  enter  into  any  binding  contract,
agreement,  commitment  or  arrangement  with  respect to any of the  foregoing;
provided,  however,  that  notwithstanding the foregoing (other than subsections
(iii) and (iv) of this Section 6.1(d)), the Company shall not be prohibited from
acquiring  any assets or  businesses  or incurring or assuming  indebtedness  in
connection  with  acquisitions  of  assets  or  businesses  so long as (A)  such
acquisitions are disclosed in Section 6.1 of the Company Disclosure Schedule, or
(B) the aggregate value of consideration  paid or payable in connection with any
such acquisition (other than those acquisitions disclosed in Schedule 6.1 of the
Company Disclosure  Schedule) including any funded indebtedness  assumed and any
Company  Common Stock issued in connection  with such  acquisitions  (valued for
purposes  of this  limitation  at a price  per  share  equal to the price of the
Company  Common  Stock  on the  date  the  agreement  in  respect  of  any  such
acquisition is entered into) does not exceed $10 million and such acquisition is
accretive  to the  earnings  per  share  of the  Company.  For  purposes  of the
foregoing, any contingent,  royalty and similar payments made in connection with
acquisitions   of  businesses  or  assets  shall  be  included  as   acquisition
consideration  and shall be deemed to have a value equal to their  present value
assuming a 8% per annum discount rate and assuming that all amounts  payable for
the  first  five  years  following  consummation  of the  acquisitions  (but not
thereafter) are paid.  Notwithstanding  anything herein to the contrary: (A) the
Company  will not acquire or agree to acquire any assets or  businesses  if such
acquisition or agreement may reasonably be expected to delay the consummation of
the Merger;  (B) the Company  will not acquire or agree to acquire any assets or
businesses  if such  assets or  businesses  are not in  industries  in which the
Company  currently  operates,  unless such  assets or  businesses  are  acquired
incidental to an  acquisition  of businesses or assets that are in industries in
which the  Company  currently  operates  and it is  reasonable  to acquire  such
incidental businesses or assets in connection with such acquisition; and (C) the
Company  will not  acquire or agree to acquire all or  substantially  all of the
business,  assets,  properties  or capital  stock of any entity with  securities
registered under the Securities Act or the Exchange Act;

         (e) use all  reasonable  efforts to preserve  intact  their  respective
business  organizations  and  goodwill,  keep  available  the  services of their
respective  present  officers and key  employees,  and preserve the goodwill and
business  relationships with customers and others having business  relationships
with them and not engage in any action, directly or indirectly,  with the intent
to adversely impact the transactions contemplated by this Agreement;

         (f) subject to restrictions  imposed by applicable law, confer with one
or more  representatives of Parent to report operational  matters of materiality
and the general status of ongoing operations;

         (g) not enter  into or amend any  employment,  severance,  special  pay
arrangement   with  respect  to  termination  of  employment  or  other  similar
arrangements or agreements with any directors, officers or key employees, except
in the ordinary  course and consistent  with past practice;  provided,  however,
that the Company and its subsidiaries  shall in no event enter into or amend any
written  employment  agreements  providing  for annual  base salary in excess of
$100,000 per annum;

         (h) not adopt,  enter into or amend any  pension  or  retirement  plan,
trust or fund,  except as required to comply with changes in applicable  law and
not  adopt,  enter  into or amend in any  material  respect  any  bonus,  profit
sharing,  compensation,  stock  option,  deferred  compensation,   health  care,
employment or other employee benefit plan, agreement, trust, fund or arrangement
for the benefit or welfare of any employees or retirees generally, other than in
the ordinary  course of business,  except (i) as contemplated by Section 6.1(c),
(ii) as required  to comply with  changes in  applicable  law,  (iii) any of the
foregoing involving any such then existing plans,  agreements,  trusts, funds or
arrangements of any company acquired after the date hereof,  or (iv) as required
pursuant to an existing contractual arrangement or agreement;

         (i) use  commercially  reasonable  efforts to maintain with financially
responsible  insurance  companies  insurance  on its  tangible  assets  and  its
businesses  in such amounts and against such risks and losses as are  consistent
with past practice; and

         (j) not make,  change or revoke any  material  Tax election or make any
material agreement or settlement regarding Taxes with any taxing authority.

         SECTION 6.2 Conduct of  Business by Parent and  Subsidiary  Pending the
Merger.  Except as  otherwise  contemplated  by this  Agreement,  after the date
hereof and prior to the Closing Date or earlier  termination of this  Agreement,
unless the Company shall  otherwise  agree in writing,  Parent shall,  and shall
cause its subsidiaries to:

         (a)      conduct their  respective  businesses in the ordinary and 
usual course of business and consistent with past practice;

         (b) not (i) amend or propose to amend their respective  certificates of
incorporation  (except  for any  amendments  by  Parent  of its  Certificate  of
Incorporation to increase the number of authorized shares of Parent Common Stock
to not more than 400  million)  or bylaws,  (ii)  split,  combine or  reclassify
(whether by stock dividend or otherwise)  their  outstanding  capital stock,  or
(iii) declare,  set aside or pay any dividend or  distribution  payable in cash,
stock,   property  or  otherwise,   except  for  the  payment  of  dividends  or
distributions to Parent by a wholly-owned subsidiary of Parent;

         (c) not issue,  sell,  pledge or dispose  of, or agree to issue,  sell,
pledge or dispose  of, any  additional  shares of, or any  options,  warrants or
rights of any kind to acquire any shares of their  capital stock of any class or
any debt or equity securities  convertible into or exchangeable for such capital
stock,  except that (i) Parent may issue shares upon  conversion of  convertible
securities and exercise of options and warrants  outstanding on the date hereof,
(ii) Parent may issue options with an exercise  price per share of Parent Common
Stock no less than the fair market  value of a share of Parent  Common  Stock on
the date of grant thereof (and shares upon exercise of such options) pursuant to
its employee  stock option plans in effect on the date hereof,  and (iii) Parent
may issue  shares of capital  stock (or  warrants or options to acquire  capital
stock) in connection with acquisitions of assets or businesses;

         (d) not (i) incur or become  contingently  liable  with  respect to any
indebtedness for borrowed money other than (A) borrowings in the ordinary course
of business or borrowings under the existing credit  facilities of Parent or any
of its subsidiaries,  (B) borrowings to refinance existing indebtedness on terms
which are reasonably  acceptable to the Company, (C) as set forth in the proviso
in this Section 6.2(d), (ii) redeem,  purchase,  acquire or offer to purchase or
acquire any shares of its capital  stock or any  options,  warrants or rights to
acquire  any  of  its  capital  stock  or  any  security   convertible  into  or
exchangeable for its capital stock,  (iii) take any action that would jeopardize
the  treatment  of the Merger as a pooling of  interests  under APB No. 16, (iv)
take or fail to take any action  which  action or failure to take  action  would
cause Parent or its  stockholders  to recognize  gain or loss for federal income
tax purposes as a result of the  consummation  of the Merger or would  otherwise
cause the Merger not to qualify as a reorganization  under Section 368(a) of the
Code,  (v) pledge or  encumber  any  material  assets or  businesses  other than
pledges or  encumbrances  pursuant to existing or future credit  facilities,  or
(vi) enter into any binding contract, agreement,  commitment or arrangement with
respect to any of the foregoing;  provided,  however,  that  notwithstanding the
foregoing (other than subsections (iii) and (iv) of this Section 6.2(d)), Parent
shall not be prohibited  from acquiring any assets or businesses or incurring or
assuming  indebtedness in connection with  acquisitions of assets or businesses.
Notwithstanding  anything herein to the contrary: (A) Parent will not acquire or
agree to acquire any assets or businesses if such  acquisition  or agreement may
reasonably be expected to delay the  consummation of the Merger;  and (B) Parent
will not acquire or agree to acquire any assets or  businesses if such assets or
businesses are not in industries in which Parent currently operates, unless such
assets or businesses are acquired  incidental to an acquisition of businesses or
assets that are in  industries  in which  Parent  currently  operates  and it is
reasonable to acquire such  incidental  businesses or assets in connection  with
such acquisition;

         (e) use all  reasonable  efforts to preserve  intact  their  respective
business  organizations  and  goodwill,  keep  available  the  services of their
respective  present  officers and key  employees,  and preserve the goodwill and
business  relationships with customers and others having business  relationships
with them and not engage in any action, directly or indirectly,  with the intent
to adversely impact the transactions contemplated by this Agreement;

         (f) subject to restrictions  imposed by applicable law, confer with one
or  more  representatives  of the  Company  to  report  operational  matters  of
materiality and the general status of ongoing operations; and

         (g) use  commercially  reasonable  efforts to maintain with financially
responsible  insurance  companies  insurance  on its  tangible  assets  and  its
businesses  in such amounts and against such risks and losses as are  consistent
with past practice.

         SECTION 6.3 Control of the Company's  Operations.  Nothing contained in
this Agreement shall give to Parent,  directly or indirectly,  rights to control
or direct the Company's  operations  prior to the Effective  Time.  Prior to the
Effective  Time,  the  Company  shall  exercise,  consistent  with the terms and
conditions  of  this  Agreement,   complete   control  and  supervision  of  its
operations.

         SECTION 6.4 Control of Parent's  Operations.  Nothing contained in this
Agreement shall give to the Company,  directly or indirectly,  rights to control
or  direct  Parent's  operations  prior  to the  Effective  Time.  Prior  to the
Effective Time, Parent shall exercise,  consistent with the terms and conditions
of this Agreement, complete control and supervision of its operations.

         SECTION 6.5 Acquisition Transactions.

         (a) After the date  hereof and prior to the  Effective  Time or earlier
termination of this  Agreement,  the Company shall not, and shall not permit any
of its  subsidiaries  to,  initiate,  solicit,  negotiate,  encourage or provide
confidential information to facilitate, and the Company shall, and shall use its
reasonable efforts to cause any officer, director or employee of the Company, or
any attorney,  accountant,  investment banker,  financial advisor or other agent
retained by it or any of its subsidiaries,  not to initiate, solicit, negotiate,
encourage or provide non-public or confidential  information to facilitate,  any
proposal  or offer  to  acquire  all or any  substantial  part of the  business,
properties  or capital  stock of the  Company,  whether by merger,  purchase  of
assets,  tender offer or  otherwise,  whether for cash,  securities or any other
consideration or combination  thereof (any such  transactions  being referred to
herein as an "Acquisition Transaction").

         (b)  Notwithstanding  the  provisions of paragraph  (a) above,  (i) the
Company  may, in  response  to an  unsolicited  written  offer or proposal  with
respect  to  a  potential  or  proposed  Acquisition  Transaction  ("Acquisition
Proposal") which the Company's Board of Directors determines,  in good faith and
after  consultation  with its independent  financial  advisor,  would result (if
consummated pursuant to its terms) in an Acquisition  Transaction more favorable
to the Company's  stockholders than the Merger (any such offer or proposal being
referred to as a "Superior  Proposal"),  furnish  (subject to the execution of a
confidentiality   agreement   substantially   similar  to  the   confidentiality
provisions  of this  agreement),  confidential  or non-public  information  to a
financially capable corporation, partnership, person or other entity or group (a
"Potential  Acquirer") and negotiate and, upon  termination of this Agreement in
accordance  with  Section  9.1(a)(iv)  and  after  payment  to Parent of the fee
pursuant to Section 7.6(b), enter agreements with such Potential Acquirer if the
Board of Directors  of the  Company,  after  consulting  with its outside  legal
counsel, determines in good faith that consideration of the Superior Proposal is
reasonably  necessary  for the Board of Directors to act in a manner  consistent
with its fiduciary  duties or that the failure to provide such  confidential  or
non-public  information to or negotiate  with such  Potential  Acquirer would be
reasonably  likely to constitute a breach of its fiduciary duty to the Company's
stockholders, and (ii) the Company's Board of Directors may take and disclose to
the  Company's  stockholders  a position  contemplated  by Rule 14e-2  under the
Exchange Act. It is understood and agreed that negotiations and other activities
conducted in accordance with this paragraph (b) shall not constitute a violation
of paragraph (a) of this Section 6.5.

         (c) The Company  shall  immediately  notify Parent after receipt of any
Acquisition   Proposal,   indication  of  interest  or  request  for  non-public
information  relating to the Company or its  subsidiaries  in connection with an
Acquisition  Proposal or for access to the  properties,  books or records of the
Company or any  subsidiary  by any person or entity  that  informs  the Board of
Directors of the Company or such  subsidiary that it is considering  making,  or
has made, an  Acquisition  Proposal.  Such notice to Parent shall be made orally
and in writing  and shall  indicate  in  reasonable  detail the  identity of the
offeror and the terms and conditions of such proposal, inquiry or contact.

         (d) After the date  hereof and prior to the  Effective  Time or earlier
termination  of this  Agreement,  the Parent shall  promptly  notify the Company
after receipt of any proposal or offer to acquire all or any substantial part of
the business, properties or capital stock of Parent, whether by merger, purchase
of assets, tender offer or otherwise,  whether for cash, securities or any other
consideration or combination  thereof (any such  transactions  being referred to
herein as a "Parent Acquisition Transaction"),  and shall indicate in reasonable
detail the  identity  of the offeror or Person and the terms and  conditions  of
such proposal or offer.

                                   ARTICLE VII
                              ADDITIONAL AGREEMENTS

         SECTION 7.1 Access to Information.

         (a) Subject to applicable law, the Company and its  subsidiaries  shall
afford to Parent  and  Subsidiary  and their  respective  accountants,  counsel,
financial advisors and other representatives (the "Parent  Representatives") and
Parent and its  subsidiaries  shall  afford to the Company and its  accountants,
counsel,   financial   advisors   and  other   representatives   (the   "Company
Representatives") reasonable access during normal business hours with reasonable
notice  throughout  the  period  prior  to the  Effective  Time to all of  their
respective properties, books, contracts, commitments and records (including, but
not limited to, Tax Returns) and, during such period,  shall furnish promptly to
one another (i) a copy of each  report,  schedule  and other  document  filed or
received  by any of them  pursuant  to the  requirements  of  federal  or  state
securities  laws or filed by any of them  with  the SEC in  connection  with the
transactions  contemplated  by this Agreement,  and (ii) such other  information
concerning  their respective  businesses,  properties and personnel as Parent or
Subsidiary  or the  Company,  as the  case  may be,  shall  reasonably  request;
provided,  however,  that no  investigation  pursuant to this  Section 7.1 shall
amend or modify any  representations or warranties made herein or the conditions
to the  obligations of the respective  parties to consummate the Merger.  Parent
and its  subsidiaries  shall hold and shall use their reasonable best efforts to
cause the Parent  Representatives  to hold, and the Company and its subsidiaries
shall hold and shall use their  reasonable  best  efforts  to cause the  Company
Representatives  to hold,  in strict  confidence  all  nonpublic  documents  and
information  furnished to Parent and  Subsidiary or to the Company,  as the case
may be, in connection  with the  transactions  contemplated  by this  Agreement,
except that (i) Parent, Subsidiary and the Company may disclose such information
as may be necessary in  connection  with seeking the Parent  Required  Statutory
Approvals and Parent  Stockholders'  Approval,  the Company  Required  Statutory
Approvals  and the  Company  Stockholders'  Approval,  and (ii) each of  Parent,
Subsidiary and the Company may disclose any  information  that it is required by
law or judicial or administrative order to disclose.

         (b) In the event that this  Agreement is terminated in accordance  with
its terms,  each  party  shall  promptly  redeliver  to the other all  nonpublic
written material  provided pursuant to this Section 7.1 and shall not retain any
copies,  extracts  or other  reproductions  in whole or in part of such  written
material.  In such event,  all  documents,  memoranda,  notes and other writings
prepared  by Parent or the Company  based on the  information  in such  material
shall be  destroyed  (and  Parent  and the  Company  shall use their  respective
reasonable best efforts to cause their advisors and representatives to similarly
destroy  their  documents,  memoranda  and  notes),  and such  destruction  (and
reasonable best efforts) shall be certified in writing by an authorized  officer
supervising such destruction.

         (c) At least 60 days prior to the Closing, the Company shall deliver to
the Parent a complete  copy of each  agreement  which  requires  the  Company to
register any shares of Company  Common Stock under the  Securities Act and which
would require the Parent to register any shares of Parent Common Stock under the
Securities Act upon or after the Closing.

         SECTION 7.2 Registration Statement and Proxy Statement.  Parent and the
Company shall file with the SEC as soon as is reasonably  practicable  after the
date hereof the Registration  Statement and shall use all reasonable  efforts to
have the  Registration  Statement  declared  effective by the SEC as promptly as
practicable.  Parent  also  shall  take any action  required  to be taken  under
applicable  state blue sky or securities laws in connection with the issuance of
Parent  Common Stock  pursuant  hereto.  Parent and the Company  shall  promptly
furnish  to each other all  information,  and take such  other  actions,  as may
reasonably  be  requested  in  connection  with  any  action  by any of  them in
connection  with the  preceding  sentence.  The  information  provided and to be
provided  by Parent and the  Company,  respectively,  for use in the Joint Proxy
Statement/Prospectus  shall not contain any untrue  statement of a material fact
or omit to state a material fact  required to be stated  therein or necessary to
make the statements  therein, in the light of the circumstances under which they
were made, not misleading.

         SECTION 7.3 Stockholders' Approvals.

         (a)  The  Company  shall,  as  promptly  as  practicable,  submit  this
Agreement  and the  transactions  contemplated  hereby for the  approval  of its
stockholders at a meeting of stockholders  and,  subject to the fiduciary duties
of its Board of  Directors,  shall use its  reasonable  best  efforts  to obtain
stockholder approval and adoption (the "Company Stockholders' Approval") of this
Agreement and the transactions contemplated hereby. Such meeting of stockholders
shall  be  held as soon  as  practicable  following  the  date  upon  which  the
Registration  Statement becomes effective.  The Company shall, through its Board
of  Directors,  recommend  to its  stockholders  approval  of  the  transactions
contemplated by this Agreement.

         (b) Parent shall, as promptly as practicable, submit this Agreement and
the transactions  contemplated  hereby for the approval of its stockholders at a
meeting of  stockholders  and,  subject to the fiduciary  duties of its Board of
Directors,  shall use its reasonable best efforts to obtain stockholder approval
and adoption (the "Parent  Stockholders'  Approval")  of this  Agreement and the
transactions  contemplated hereby. Such meeting of stockholders shall be held as
soon as  practicable  following  the date on which  the  Registration  Statement
becomes effective.  Parent shall, through its Board of Directors,  (i) recommend
to its stockholders approval of the transactions contemplated by this Agreement,
and (ii)  authorize  and cause an officer of Parent to vote  Parent's  shares of
Subsidiary  Common Stock for adoption  and  approval of this  Agreement  and the
transactions  contemplated  hereby, and shall take all additional actions as the
sole stockholder of Subsidiary necessary to adopt and approve this Agreement and
the transactions contemplated hereby.

         SECTION  7.4  Compliance  with the  Securities  Act.  . Parent  and the
Company  shall  each use its  commercially  reasonable  efforts  to  cause  each
officer, each director and each other person who is an "affiliate," as that term
is used in  paragraphs  (c) and (d) of Rule 145 under  the  Securities  Act,  of
Parent or the Company,  as the case may be, to deliver to Parent and the Company
on or prior to the Effective Time a written agreement (an "Affiliate Agreement")
to the effect that such person will not offer to sell, sell or otherwise dispose
of any shares of Parent Common Stock issued in the Merger, except, in each case,
pursuant to an effective  registration statement or in compliance with Rule 145,
as amended from time to time, or in a transaction which, in the opinion of legal
counsel  reasonably  satisfactory  to Parent,  is exempt  from the  registration
requirements  of the  Securities  Act and, in any case,  until after the results
covering 30 days of  post-Merger  combined  operations of Parent and the Company
have been  filed  with the SEC,  sent to  stockholders  of  Parent or  otherwise
publicly issued.  The Company shall use its commercially  reasonable  efforts to
cause each of its  officers,  directors and  "affiliates"  to vote all shares of
Company Common Stock held by them in favor of the Merger.

         SECTION 7.5  Exchange  Listing.  Parent shall use its  reasonable  best
efforts to effect, at or before the Effective Time, authorization for listing on
the Nasdaq  National  Market of the shares of Parent  Common  Stock to be issued
pursuant to the Merger or to be reserved  for  issuance  upon  exercise of stock
options or warrants or the conversion of convertible securities.

         SECTION 7.6 Expenses and Fees.

         (a) All costs and expenses  incurred in connection  with this Agreement
and the  transactions  contemplated  hereby shall be paid by the party incurring
such expenses,  except that those expenses  incurred in connection with printing
and filing the Joint Proxy  Statement/Prospectus  and the reasonable expenses of
the Company in connection with any HSR Act review or proceedings shall be shared
equally by Parent and the Company.

         (b) The Company agrees to pay to Parent a fee equal to $32 million if:

                  (i)      the  Company  terminates  this  Agreement  pursuant  
to  clause  (iv) or (v) of  Section 9.1(a);

                  (ii) Parent terminates this Agreement  pursuant to clause (iv)
of Section 9.1(b); or

                  (iii) this Agreement is terminated for any reason at a time at
which  Parent was not in  material  breach of its  covenants  contained  in this
Agreement and was entitled to terminate this  Agreement  pursuant to clause (vi)
of  Section  9.1(b),  and (i) prior to the time of such  termination  a proposal
relating to an  Acquisition  Transaction  had been made, and (ii) on or prior to
the nine month  anniversary of the termination of this Agreement (x) the Company
or any of its  subsidiaries or affiliates  enters into an agreement or letter of
intent  (or  resolves  or  announces  an  intention  to do) with  respect  to an
Acquisition  Transaction  involving  a person,  entity or group if such  person,
entity,  group (or any  member of such  group,  or any  affiliate  of any of the
foregoing)  made a proposal  with respect to an  Acquisition  Transaction  on or
after the date hereof and prior to the  termination  of this  Agreement and such
Acquisition  Transaction is consummated or (y) an Acquisition  Transaction shall
otherwise  occur with any person who shall have made a proposal  with respect to
an Acquisition  Transaction  within 90 days after termination of this Agreement.
Such fee shall be payable upon the first occurrence of any such event.

         (c) Parent  agrees to pay to the  Company a fee equal to $32 million if
(i) this  Agreement is terminated  for any reason at a time at which the Company
was not in material breach of its covenants  contained in this Agreement and was
entitled to terminate this Agreement pursuant to clause (vii) of Section 9.1(a),
(ii)  prior to the time of such  termination  a  proposal  relating  to a Parent
Acquisition  Transaction  had been made, and (iii) on or prior to the nine month
anniversary  of the  termination  of this  Agreement  (x)  Parent  or any of its
subsidiaries  or  affiliates  enters into an  agreement  or letter of intent (or
resolves or announces  an intention to do) with respect to a Parent  Acquisition
Transaction or a merger,  acquisition or other business combination  involving a
person,  entity or group if such  person,  entity,  group (or any member of such
group, or any affiliate of any of the foregoing) made a proposal with respect to
a Parent  Acquisition  Transaction  on or after the date hereof and prior to the
termination  of this  Agreement  and  such  Parent  Acquisition  Transaction  is
consummated or (y) a Parent Acquisition  Transaction shall otherwise occur. Such
fee shall be payable upon the first occurrence of any such event.

         SECTION 7.7 Agreement to Cooperate.

         (a) Subject to the terms and conditions  herein provided and subject to
the fiduciary  duties of the  respective  boards of directors of the Company and
Parent,  each of the parties hereto shall use all reasonable efforts to take, or
cause to be  taken,  all  action  and to do,  or cause  to be done,  all  things
necessary,  proper  or  advisable  under  applicable  laws  and  regulations  to
consummate and make effective the  transactions  contemplated by this Agreement,
including  using its  reasonable  efforts to obtain all necessary or appropriate
waivers,  consents or approvals of third  parties  required in order to preserve
material  contractual   relationships  of  Parent  and  the  Company  and  their
respective  subsidiaries,  all necessary or  appropriate  waivers,  consents and
approvals and SEC  "no-action"  letters to effect all  necessary  registrations,
filings and  submissions  and to lift any  injunction  or other legal bar to the
Merger  (and,  in such case,  to proceed  with the  Merger as  expeditiously  as
possible).

         (b) Without limitation of the foregoing, each of Parent and the Company
undertakes and agrees to file as soon as practicable,  and in any event prior to
15 days after the date hereof,  a Notification and Report Form under the HSR Act
with the FTC and the  Antitrust  Division.  Each of Parent and the Company shall
(i) respond as promptly as practicable to any inquiries received from the FTC or
the Antitrust  Division for additional  information or documentation  and to all
inquiries  and  requests  received  from any  State  Attorney  General  or other
governmental authority in connection with antitrust matters, and (ii) not extend
any waiting period under the HSR Act or enter into any agreement with the FTC or
the Antitrust  Division not to consummate the transactions  contemplated by this
Agreement,  except with the prior written  consent of the other parties  hereto.
Parent  shall  take  all  reasonable  steps  necessary  to  avoid  or  eliminate
impediments under any antitrust,  competition,  or trade regulation law that may
be asserted by the FTC, the Antitrust  Division,  any State Attorney  General or
any other  governmental  entity  with  respect to the Merger so as to enable the
Closing to occur as soon as reasonably possible. Without limiting the foregoing,
Parent shall propose,  negotiate,  commit to and effect, by consent decree, hold
separate  order,  or otherwise,  the sale,  divestiture  or  disposition of such
assets or  businesses  of Parent or,  effective as of the  Effective  Time,  the
Surviving  Corporation  as may be required in order to avoid the entry of, or to
effect the dissolution of, any injunction,  temporary restraining order or other
order in any suit or  proceeding,  which  would  otherwise  have the  effect  of
preventing or delaying the Closing.  Each party shall promptly  notify the other
party of any written  communication  to that party from the FTC,  the  Antitrust
Division, any State Attorney General or any other governmental entity and permit
the other party to review in advance any proposed  written  communication to any
of the foregoing.

         (c) In the event any  litigation  is  commenced by any person or entity
relating to the  transactions  contemplated  by this  Agreement,  including  any
Acquisition  Transaction,  Parent shall have the right,  at its own expense,  to
participate therein, and the Company will not settle any such litigation without
the consent of Parent, which consent will not be unreasonably withheld.

         SECTION 7.8 Public  Statements.  The parties  shall  consult  with each
other prior to issuing any press release or any public statement with respect to
this Agreement or the transactions  contemplated  hereby and shall not issue any
such press release or public statement prior to such consultation.

         SECTION  7.9  Notification  of Certain  Matters.  Each of the  Company,
Parent and Subsidiary  agrees to give prompt notice to each other of, and to use
commercially  reasonable  efforts to remedy,  (i) the  occurrence  or failure to
occur of any event which occurrence or failure to occur would be likely to cause
any of its  representations  or  warranties  in this  Agreement  to be untrue or
inaccurate in any material  respect at the Effective Time, and (ii) any material
failure  on its part to  comply  with or  satisfy  any  covenant,  condition  or
agreement to be complied with or satisfied by it hereunder;  provided,  however,
that the delivery of any notice  pursuant to this Section 7.9 shall not limit or
otherwise  affect the remedies  available  hereunder to the party receiving such
notice.

         SECTION 7.10 Directors' and Officers' Indemnification.

         (a) The indemnification  provisions of the certificate of incorporation
and bylaws of the Surviving Corporation as in effect at the Effective Time shall
not be amended,  repealed or  otherwise  modified for a period of six years from
the  Effective  Time in any  manner  that  would  adversely  affect  the  rights
thereunder of individuals  who at the Effective Time were  directors,  officers,
employees  or agents  of the  Company.  Parent  shall  assume,  be  jointly  and
severally liable for, and honor,  guaranty and stand surety for, and shall cause
the Surviving  Corporation to honor, in accordance with their  respective  terms
each  of  the  covenants  contained  in  this  Section  7.10  and  each  of  the
indemnification  agreements  listed on Section  7.10 of the  Company  Disclosure
Schedule without limit as to time.

         (b) Without limiting Section 7.10(a), after the Effective Time, each of
Parent and the Surviving  Corporation  shall,  to the fullest  extent  permitted
under  applicable  law,  indemnify  and hold  harmless,  each present and former
director,  officer, employee and agent of the Company or any of its subsidiaries
(each,  together  with such  person's  heirs,  executors or  administrators,  an
"Indemnified  Party" and  collectively,  the "Indemnified  Parties") against any
costs or expenses (including attorneys fees), judgments,  fines, losses, claims,
damages,  liabilities  and amounts paid in  settlement  in  connection  with any
actual or threatened claim, action, suit,  proceeding or investigation,  whether
civil, criminal, administrative or investigative, arising out of, relating to or
in connection with any action or omission occurring or alleged to occur prior to
the  Effective  Time  (including,  without  limitation,  acts  or  omissions  in
connection with such persons serving as an officer,  director or other fiduciary
in any  entity if such  service  was at the  request  or for the  benefit of the
Company)  and  the  Merger  and  the  other  transactions  contemplated  by this
Agreement or arising out of or pertaining to the  transactions  contemplated  by
this  Agreement.  In the event of any such actual or threatened  claim,  action,
suit, proceeding or investigation (whether arising before or after the Effective
Time), (i) the Company or Parent and the Surviving Corporation,  as the case may
be,  shall pay the  reasonable  fees and  expenses  of counsel  selected  by the
Indemnified  Parties,  which  counsel shall be  reasonably  satisfactory  to the
Parent and the Surviving  Corporation,  promptly after  statements  therefor are
received  and shall pay all other  reasonable  expenses  in advance of the final
disposition of such action,  (ii) the Parent and the Surviving  Corporation will
cooperate and use all  reasonable  efforts to assist in the vigorous  defense of
any such  matter,  and (iii) to the extent any  determination  is required to be
made with respect to whether an Indemnified  Party's  conduct  complies with the
standards   set  forth  under  the  DGCL  and  the  Parent's  or  the  Surviving
Corporation's   respective   certificate  of  incorporation   or  bylaws,   such
determination  shall be made by  independent  legal  counsel  acceptable  to the
Parent or the  Surviving  Corporation,  as the case may be, and the  Indemnified
Party;  provided,  however,  that neither  Parent nor the Surviving  Corporation
shall be liable for any settlement  effected  without its written consent (which
consent shall not be  unreasonably  withheld)  and,  provided  further,  that if
Parent or the  Surviving  Corporation  advances or pays any amount to any person
under this paragraph (b) and if it shall  thereafter be finally  determined by a
court  of  competent  jurisdiction  that  such  person  was not  entitled  to be
indemnified  hereunder  for all or any  portion  of such  amount,  to the extent
required by law, such person shall repay such amount or such portion thereof, as
the case may be, to Parent or the Surviving Corporation, as the case may be. The
Indemnified  Parties  as a group  may  not  retain  more  than  one law  firm to
represent  them with respect to each matter  unless  there is, under  applicable
standards of professional  conduct,  a conflict on any significant issue between
the positions of any two or more Indemnified Parties.

         (c) In the event the  Surviving  Corporation  or Parent or any of their
successors or assigns (i) consolidates  with or merges into any other person and
shall  not  be the  continuing  or  surviving  corporation  or  entity  of  such
consolidation  or merger,  or (ii)  transfers  all or  substantially  all of its
properties  and  assets  to any  person,  then  and in each  such  case,  proper
provisions  shall be made so that the  successors  and assigns of the  Surviving
Corporation or Parent shall assume the obligations of the Surviving  Corporation
or the Parent, as the case may be, set forth in this Section 7.10.

         (d) For a period of six years after the  Effective  Time,  Parent shall
cause to be  maintained  in  effect  the  current  policies  of  directors'  and
officers'  liability  insurance  maintained by the Company and its  subsidiaries
(provided  that  Parent may  substitute  therefor  policies of at least the same
coverage  and  amounts   containing  terms  and  conditions  that  are  no  less
advantageous to the Indemnified  Parties,  and which coverages and amounts shall
be no less than the  coverages  and amounts  provided at that time for  Parent's
directors  and  officers)  with  respect  to  matters  arising  on or before the
Effective Time.

         (e) Parent  shall pay all  reasonable  expenses,  including  reasonable
attorneys' fees, that may be incurred by any Indemnified  Party in enforcing the
indemnity and other obligations provided in this Section 7.10.

         (f) The rights of each Indemnified Party hereunder shall be in addition
to, and not in limitation of, any other rights such  Indemnified  Party may have
under the charter or bylaws of the Company, any indemnification agreement, under
the DGCL or  otherwise.  The  provisions  of this Section 7.10 shall survive the
consummation  of the Merger and  expressly  are  intended to benefit each of the
Indemnified Parties.

         SECTION 7.11  Corrections to the Joint Proxy  Statement/Prospectus  and
Registration  Statement.  Prior to the date of  approval  of the Merger by their
respective  stockholders,  each of the  Company,  Parent  and  Subsidiary  shall
correct promptly any information  provided by it to be used  specifically in the
Joint Proxy  Statement/Prospectus  and  Registration  Statement  that shall have
become  false or  misleading  in any  material  respect and shall take all steps
necessary to file with the SEC and have declared effective or cleared by the SEC
any  amendment  or  supplement  to the Joint Proxy  Statement/Prospectus  or the
Registration  Statement  so as to correct  the same and to cause the Joint Proxy
Statement/Prospectus  as so corrected to be disseminated to the  stockholders of
the Company and Parent, in each case to the extent required by applicable law.

         SECTION  7.12  Employment  and  Consulting  Agreements.  (a) Parent and
Subsidiary  agree  that  the  Surviving   Corporation  will  recognize  existing
seniority  with full credit for prior  service and will provide  benefits to the
Company's  employees  that  are  in the  aggregate  comparable  to the  benefits
provided to Parent  employees with comparable prior service as if such employees
had been  employed by Parent for the period for which they were  employed by the
Company; provided, however, that nothing contained herein shall be considered as
requiring  Parent or the Surviving  Corporation to continue any specific plan or
benefit or as  precluding  amendments to any specific plan or benefit other than
as  provided  in Section  7.12(b)  below;  and  provided  further  that  nothing
expressed  or implied in this  Agreement  shall  confer upon any employee or any
beneficiary,  dependent,  legal representative or collective bargaining agent of
such employee any right or remedy of any nature or kind  whatsoever  under or by
reason of this Agreement,  including without  limitation any right to employment
or continued  employment for any specified period, at any specified  location or
under any specified job category.

         (b) From and after the Effective  Time,  Parent shall,  and shall cause
the Surviving  Corporation  and its  subsidiaries  to, honor in accordance  with
their terms, the employment,  severance, and other compensation contracts listed
in Section 7.12 of the Company Disclosure Schedule between the Company or one of
its subsidiaries and certain current or former directors,  officers or employees
thereof (true and correct  copies of which have been delivered by the Company to
the Parent).  Parent,  Subsidiary  and the Company each hereby  acknowledge  and
agree that:  (i) upon the  consummation  of the Merger,  each of the  executives
listed in Section 7.12 of the Company Disclosure Schedule will be deemed to have
terminated  his  employment  with the Company;  (ii) each such executive will be
entitled to receive the  severance  pay and benefits  required by the  contracts
listed in Section 7.12 of the Company  Disclosure  Schedule (the amounts payable
in connection therewith have previously been accurately provided to Parent), and
(iii) any cash payments to which such  executives  are entitled shall be made at
Closing and simultaneously therewith.

                                  ARTICLE VIII
                                   CONDITIONS

         SECTION 8.1 Conditions to Each Party's Obligation to Effect the Merger.
The  respective  obligations of each party to effect the Merger shall be subject
to the fulfillment at or prior to the Closing Date of the following conditions:

         (a) this Agreement and the transactions  contemplated hereby shall have
been  approved  and adopted by the  requisite  vote of the  stockholders  of the
Company and Parent under applicable law and applicable listing requirements;

         (b) the shares of Parent Common Stock  issuable in the Merger and those
to be reserved for issuance  upon  exercise of stock  options or warrants or the
conversion of convertible  securities  shall have been authorized for listing on
the Nasdaq National Market;

         (c) the waiting  period  applicable to the  consummation  of the Merger
under the HSR Act shall have expired or been terminated;

         (d)  the   Registration   Statement  shall  have  become  effective  in
accordance  with  the  provisions  of the  Securities  Act,  and no  stop  order
suspending such effectiveness shall have been issued and remain in effect and no
proceeding  for that purpose shall have been  instituted by the SEC or any state
regulatory authorities;

         (e) no preliminary or permanent  injunction or other order or decree by
any federal or state court which prevents the  consummation  of the Merger shall
have been issued and remain in effect (each party agreeing to use its reasonable
efforts to have any such injunction, order or decree lifted);

         (f) no statute, rule or regulation shall have been enacted by any state
or federal  government or  governmental  agency in the United States which would
prevent the consummation of the Merger or make the Merger illegal;

         (g) Arthur Andersen L.L.P.,  certified  public  accountants for Parent,
shall have delivered a letter,  dated the Closing Date,  addressed to Parent, in
form and substance  reasonably  satisfactory  to Parent,  to the effect that the
Merger  will  qualify  for  a  pooling  of  interests  accounting  treatment  if
consummated in accordance with this Agreement; and

         (h) each of the parties to the  Agreement  shall have received a letter
dated the  Closing  Date,  addressed  to the  Company,  from Ernst & Young,  LLP
regarding such firm's  concurrence with the Company's  management's  conclusions
that no conditions exist related to the Company that would preclude the Parent's
accounting  for the Merger  with the  Company as a pooling  of  interests  under
Accounting  Principles  Board  Opinion  No.  16 if  closed  and  consummated  in
accordance with this Agreement.

         SECTION  8.2  Conditions  to  Obligation  of the  Company to Effect the
Merger.  Unless waived by the Company,  the  obligation of the Company to effect
the Merger shall be subject to the  fulfillment  at or prior to the Closing Date
of the following additional conditions:

         (a)  Parent  and  Subsidiary  shall  have  performed  their  agreements
contained in this Agreement  required to be performed on or prior to the Closing
Date and the representations  and warranties of Parent and Subsidiary  contained
in this  Agreement  shall be true  and  correct  on and as of the date  made and
(except to the extent that such  representations  and warranties  speak as of an
earlier  date) on and as of the Closing  Date as if made at and as of such date,
except for such  failures  to perform or to be true and  correct  that would not
reasonably be expected to have a Parent Material Adverse Effect, and the Company
shall have received a certificate of the Chief Executive Officer,  the President
or a Vice President of Parent and of the Chief Executive Officer,  the President
or a Vice President of Subsidiary to that effect; and

         (b) the Company shall have  received an opinion of Proskauer  Rose LLP,
in form and substance reasonably  satisfactory to the Company, dated the Closing
Date,  substantially to the effect that, on the basis of facts,  representations
and assumptions  set forth in such opinion,  which are consistent with the state
of facts  existing  at the  Effective  Time:  (i) the Merger will  constitute  a
reorganization within the meaning of Section 368(a) of the Code; (ii) no gain or
loss will be recognized by Parent,  the Company or Subsidiary as a result of the
Merger;  and (iii) no gain or loss will be  recognized by the holders of Company
Common Stock upon the exchange of their  Company  Common Stock solely for shares
of  Parent  Common  Stock  (except  with  respect  to cash  received  in lieu of
fractional  shares of Parent Common  Stock).  In rendering  such  opinion,  such
counsel may rely upon representations  contained in certificates of officers and
certain stockholders of Parent, the Company and Subsidiary.

         SECTION 8.3  Conditions  to  Obligations  of Parent and  Subsidiary  to
Effect the Merger.  Unless waived by Parent and  Subsidiary,  the obligations of
Parent and  Subsidiary to effect the Merger shall be subject to the  fulfillment
at or prior to the Effective Time of the additional following conditions:

         (a) the Company shall have performed its  agreements  contained in this
Agreement  required  to be  performed  on or prior to the  Closing  Date and the
representations  and warranties of the Company contained in this Agreement shall
be true and  correct on and as of the date made and  (except to the extent  that
such  representations  and warranties  speak as of an earlier date) on and as of
the Closing Date as if made at and as of such date,  except for such failures to
perform and to be true and correct that would not reasonably be expected to have
a Company Material Adverse Effect,  and Parent shall have received a Certificate
of the Chief Executive Officer, the President or a Vice President of the Company
to that effect; and

         (b) Parent  shall have  received  an opinion of Fried,  Frank,  Harris,
Shriver & Jacobson  (or such other  counsel  selected  by  Parent),  in form and
substance   reasonably   satisfactory   to  Parent,   dated  the  Closing  Date,
substantially  to the effect that,  on the basis of facts,  representations  and
assumptions  set forth in such opinion,  which are consistent  with the state of
facts,  existing  at the  Effective  Time:  (i) the  Merger  will  constitute  a
reorganization within the meaning of Section 368(a) of the Code; and (ii) Parent
and Subsidiary will recognize no gain or loss for federal income tax purposes as
a result of consummation of the Merger. In rendering such opinion,  such counsel
may rely upon representations  contained in certificates of officers and certain
stockholders of Parent, the Company and Subsidiary.

                                   ARTICLE IX
                        TERMINATION, AMENDMENT AND WAIVER

         SECTION 9.1  Termination.  This Agreement may be terminated at any time
prior to the Closing Date,  whether before or after approval by the stockholders
of the  Company or Parent,  by the mutual  written  consent of the  Company  and
Parent or as follows:

         (a)      The Company shall have the right to terminate this Agreement:

                  (i) upon a material breach of a representation  or warranty of
Parent  contained  in this  Agreement  which has not been cured in all  material
respects and which has caused any of the  conditions set forth in section 8.2(a)
to be incapable of being satisfied by the Termination Date;

                  (ii) if the Merger is not  completed  by January 31, 1999 (the
"Termination  Date")  (unless  due to a  delay  or  default  on the  part of the
Company);

                  (iii) if the Merger is enjoined by a final, unappealable court
order not  entered at the  request or with the support of the Company and if the
Company shall have used reasonable efforts to prevent the entry of such order;

                  (iv) if the Company receives a Superior Proposal,  resolves to
accept such Superior Proposal, and the Company shall have given Parent two days'
prior written notice of its intention to terminate  pursuant to this  provision;
provided,  however, that such termination shall not be effective until such time
as the payment required by Section 7.6(b) shall have been received by Parent;

                  (v) if (A) a  tender  or  exchange  offer  is  commenced  by a
Potential Acquirer (excluding any affiliate of the Company or any group of which
any affiliate of the Company is a member) for all outstanding  shares of Company
Common Stock, (B) the Company's Board of Directors determines, in good faith and
after  consultation  with an  independent  financial  advisor,  that such  offer
constitutes a Superior Proposal and resolves to accept such Superior Proposal or
recommend  to the  stockholders  that they tender their shares in such tender or
exchange  offer,  and (C) the  Company  shall have given  Parent two days' prior
written  notice  of its  intention  to  terminate  pursuant  to this  provision;
provided,  however, that such termination shall not be effective until such time
as the payment required by Section 7.6(b) shall have been received by Parent;

                  (vi) if  Parent or  Subsidiary  (A)  fails to  perform  in any
material respect any of its material  covenants in this Agreement,  and (B) does
not cure such  default in all  material  respects  within 30 days after  written
notice of such default  specifying such default in reasonable detail is given to
Parent and Subsidiary by the Company; or

                  (vii) if the stockholders of Parent fail to approve the Merger
at a  duly  held  meeting  of  stockholders  called  for  such  purpose  or  any
adjournment or postponement thereof.

         (b) Parent shall have the right to terminate this Agreement:

                  (i) upon a material breach of a representation  or warranty of
the Company contained in this Agreement which has not been cured in all material
respects and which has caused any of the  conditions set forth in Section 8.3(a)
to be incapable of being satisfied by the Termination Date;

                  (ii)     if the Merger is not  completed  by January 31, 1999
(unless due to a delay or default on the part of Parent);

                  (iii) if the Merger is enjoined by a final, unappealable court
order not  entered at the  request  or with the  support of Parent and if Parent
shall have used reasonable efforts to prevent the entry of such order;

                  (iv) if the  Board of  Directors  of the  Company  shall  have
resolved  to  accept a  Superior  Proposal  or  shall  have  recommended  to the
stockholders  of the  Company  that they tender  their  shares in a tender or an
exchange offer commenced by a third party  (excluding any affiliate of Parent or
any group of which any  affiliate  of Parent  is a  member);  provided  that the
Parent may not so terminate  until three days after receipt of the notice of the
Company of such Superior Proposal;

                  (v) if the  Company  (A)  fails  to  perform  in any  material
respect any of its material  covenants in this Agreement,  and (B) does not cure
such default in all material  respects  within 30 days after  written  notice of
such  default  specifying  such  default  in  reasonable  detail is given to the
Company by Parent; or

                  (vi) if the  stockholders  of the Company  fail to approve the
Merger at a duly held  meeting of  stockholders  called for such  purpose or any
adjournment or postponement thereof.

         (c) As  used in this  Section  9.1,  (i)  "affiliate"  has the  meaning
assigned  to it in Section  7.4,  and (ii)  "group" has the meaning set forth in
Section 13(d) of the Exchange Act and the rules and regulations thereunder.

         SECTION 9.2 Effect of Termination.  In the event of termination of this
Agreement by either Parent or the Company  pursuant to the provisions of Section
9.1, this Agreement shall forthwith  become void and there shall be no liability
or further  obligation on the part of the Company,  Parent,  Subsidiary or their
respective  officers or  directors  (except in this  Section  9.2, in the second
sentence of Section  7.1(a) and in Sections  7.1(b),  7.6 and 10.4, all of which
shall  survive the  termination).  Nothing in this Section 9.2 shall relieve any
party from liability for any willful and  intentional  breach of any covenant or
agreement of such party contained in this Agreement.

         SECTION 9.3  Amendment.  This  Agreement  may not be amended  except by
action taken by the parties'  respective  Boards of Directors or duly authorized
committees thereof and then only by an instrument in writing signed on behalf of
each of the parties hereto and in compliance with applicable law. Such amendment
may take place at any time prior to the Closing Date, and, subject to applicable
law, whether before or after approval by the stockholders of the Company, Parent
or Subsidiary.

         SECTION  9.4  Waiver.  At any time  prior to the  Effective  Time,  the
parties  hereto  may (a)  extend  the  time  for the  performance  of any of the
obligations  or  other  acts  of  the  other  parties  hereto,   (b)  waive  any
inaccuracies in the  representations  and warranties  contained herein or in any
document  delivered  pursuant  thereto,  or (c) waive compliance with any of the
agreements or conditions  contained herein. Any agreement on the part of a party
hereto to any such  extension  or waiver  shall be valid only if set forth in an
instrument in writing signed on behalf of such party.

                                    ARTICLE X
                               GENERAL PROVISIONS

         SECTION  10.1  Non-Survival  of  Representations  and  Warranties.   No
representations, warranties or agreements in this Agreement or in any instrument
delivered  pursuant  to this  Agreement  shall  survive  the  Merger,  and after
effectiveness  of the Merger  neither the Company,  Parent,  Subsidiary or their
respective  officers or directors shall have any further obligation with respect
thereto except for the  agreements  contained in Articles II, III and X, Section
7.10, Section 7.12 and Section 9.2.

         SECTION 10.2 Notices.  All notices and other  communications  hereunder
shall be in writing and shall be deemed given if delivered personally, mailed by
registered or certified mail (return receipt requested) or sent via facsimile to
the parties at the following  addresses (or at such other address for a party as
shall be specified by like notice):

         If to Parent or Subsidiary, to:

         Allied Waste Industries, Inc.
         15880 N. Greenway-Hayden Loop
         Suite 100
         Scottsdale, AZ  85260
         Attention:  Steven Helm, Esq.
                        Vice President, Legal

         with a copies to:

         Fennemore Craig
         3003 North Central Avenue
         Phoenix, AZ  85012-2913
         Attention:  Karen C. McConnell, Esq.

         and

         Fried, Frank, Harris, Shriver & Jacobson
         One New York Plaza
         New York, New York  10004
         Attention:  Peter Golden, Esq.

         If to the Company, to:

         American Disposal Services, Inc.
         745 McClintock Drive
         Suite 305
         Burr Ridge, IL  60521
         Attention:   Ann Straw, Esq.
                      Vice President, General Counsel and Secretary

         with a copy to:

         Proskauer Rose LLP
         1585 Broadway
         New York, New York  10036
         Attention:  Steven Rubin, Esq.

         SECTION 10.3  Interpretation.  The headings contained in this Agreement
are for  reference  purposes only and shall not affect in any way the meaning or
interpretation of this Agreement. In this Agreement, unless a contrary intention
appears,  (i) the words  "herein",  "hereof" and  "hereunder" and other words of
similar  import  refer to this  Agreement  as a whole and not to any  particular
Article,  Section or other  subdivision,  and (ii)  reference  to any Article or
Section  means such Article or Section  hereof.  No provision of this  Agreement
shall be interpreted  or construed  against any party hereto solely because such
party or its legal  representative  drafted  such  provision.  For  purposes  of
determining whether any fact or circumstance  involves a material adverse effect
on the results of operations of a party,  the following shall not be considered:
(i) any special  transaction  charges  incurred by such party as a result of the
consummation of acquisitions accounted for under the pooling of interests method
of accounting,  and (ii) any non-cash,  non-recurring charges resulting from (A)
the write-down of  non-material  assets,  the value of which are impaired as the
result of an order of a governmental or regulatory body or authority, or (B) the
sale of non-material assets.

         SECTION 10.4 Miscellaneous. This Agreement (including the documents and
instruments  referred to  herein):  (a)  constitutes  the entire  agreement  and
supersedes all other prior agreements and understandings, both written and oral,
among the parties,  or any of them,  with respect to the subject  matter hereof;
and (b) shall not be  assigned by  operation  of law or  otherwise,  except that
Subsidiary  may assign this  Agreement to any other  wholly-owned  subsidiary of
Parent.  THIS AGREEMENT SHALL BE GOVERNED IN ALL RESPECTS,  INCLUDING  VALIDITY,
INTERPRETATION  AND EFFECT,  BY THE LAWS OF THE STATE OF DELAWARE  APPLICABLE TO
CONTRACTS  EXECUTED AND TO BE PERFORMED  WHOLLY WITHIN SUCH STATE. THE EXCLUSIVE
VENUE FOR THE  ADJUDICATION  OF ANY  DISPUTE OR  PROCEEDING  ARISING OUT OF THIS
AGREEMENT OR THE PERFORMANCE THEREOF SHALL BE THE COURTS LOCATED IN THE STATE OF
DELAWARE AND THE PARTIES HERETO AND THEIR  AFFILIATES EACH CONSENT TO AND HEREBY
SUBMIT TO THE JURISDICTION OF ANY COURT LOCATED IN THE STATE OF DELAWARE.

         SECTION 10.5  Counterparts.  This  Agreement  may be executed in two or
more counterparts,  each of which shall be deemed to be an original,  but all of
which shall constitute one and the same agreement.

         SECTION 10.6 Parties in Interest.  This Agreement shall be binding upon
and inure solely to the benefit of each party hereto, and except as set forth in
Sections  2.1,  2.2,  3.3,  7.9,  7.10 and 7.12 (which are intended to and shall
create third party beneficiary rights if the Merger is consummated),  nothing in
this Agreement,  express or implied, is intended to confer upon any other person
any  rights or  remedies  of any  nature  whatsoever  under or by reason of this
Agreement.  The rights of any third party beneficiary  hereunder are not subject
to any defense, offset or counterclaim.




<PAGE>


         IN WITNESS WHEREOF, Parent, Subsidiary and the Company have caused this
Agreement to be signed by their respective officers as of the date first written
above.


                          ALLIED WASTE INDUSTRIES, INC.



                          By:  /s/ THOMAS H. VAN WEELDEN
                               -----------------------------
                          Name:Thomas H. Van Weelden
                               -----------------------------
                          Title:President and Chief Executive Officer
                               -----------------------------


                          AWIN II ACQUISITION CORPORATION

                          By:  /s/ THOMAS H. VAN WEELDEN
                               -----------------------------
                          Name:Thomas H. Van Weelden
                               -----------------------------
                          Title:President and Chief Exective Officer
                               -----------------------------


                          AMERICAN DISPOSAL SERVICES, INC.


                          By:  /s/ RICHARD DE YOUNG
                               -----------------------------
                          Name:Richard De Young
                               -----------------------------
                          Title:President and Chief Executive Officer
                               -----------------------------









<PAGE>

<TABLE>
<CAPTION>

                               
                                TABLE OF CONTENTS

                                                                                                               Page


                                                   

<S>                                                                                                              <C>
ARTICLE I THE MERGER..............................................................................................1

         SECTION 1.1  The Merger..................................................................................1
         SECTION 1.2  Effective Time of the Merger................................................................1

ARTICLE II THE SURVIVING AND PARENT CORPORATIONS..................................................................1

         SECTION 2.1  Certificate of Incorporation................................................................1
         SECTION 2.2  Bylaws......................................................................................2
         SECTION 2.3  Directors...................................................................................2
         SECTION 2.4  Officers....................................................................................2

ARTICLE III CONVERSION OF SHARES..................................................................................2

         SECTION 3.1  Conversion of Company Shares in the Merger..................................................2
         SECTION 3.2  Conversion of Subsidiary Shares.............................................................2
         SECTION 3.3  Exchange of Certificates....................................................................2
         SECTION 3.4  No Fractional Securities....................................................................4
         SECTION 3.5  Closing.....................................................................................4
         SECTION 3.6  Closing of the Company's Transfer Books.....................................................4

ARTICLE IV REPRESENTATIONS AND WARRANTIES  OF PARENT AND SUBSIDIARY...............................................5

         SECTION 4.1  Organization and Qualification..............................................................5
         SECTION 4.2  Capitalization..............................................................................5
         SECTION 4.3  Subsidiaries................................................................................6
         SECTION 4.4  Authority; Non-Contravention; Approvals.....................................................6
         SECTION 4.5  Reports and Financial Statements............................................................8
         SECTION 4.6  Absence of Undisclosed Liabilities..........................................................8
         SECTION 4.7  Absence of Certain Changes or Events........................................................8
         SECTION 4.8  Litigation..................................................................................8
         SECTION 4.9  Registration Statement and Proxy Statement..................................................9
         SECTION 4.10  No Violation of Law........................................................................9
         SECTION 4.11  Compliance with Agreements.................................................................9
         SECTION 4.12  Taxes.....................................................................................10
         SECTION 4.13  Employee Benefit Plans; ERISA.............................................................11
         SECTION 4.14  Labor Controversies.......................................................................12
         SECTION 4.15  Environmental Matters.....................................................................12
         SECTION 4.16  Non-competition Agreements................................................................13
         SECTION 4.17  Title to Assets...........................................................................13
         SECTION 4.18  Reorganization and Pooling of Interests...................................................14
         SECTION 4.19  Parent Stockholders' Approval.............................................................14
         SECTION 4.20  Brokers and Finders.......................................................................14
         SECTION 4.21  Opinion of Financial Advisor..............................................................14
         SECTION 4.22  Ownership of Company Common Stock.........................................................14

ARTICLE V REPRESENTATIONS AND WARRANTIES OF THE COMPANY..........................................................14

         SECTION 5.1  Organization and Qualification.............................................................14
         SECTION 5.2  Capitalization.............................................................................15
         SECTION 5.3  Subsidiaries...............................................................................15
        
                                        - i - 

                              TABLE OF CONTENTS
                                 (continued)
                                                                                                               Page

         SECTION 5.4  Authority; Non-Contravention; Approvals....................................................16
         SECTION 5.5  Reports and Financial Statements...........................................................17
         SECTION 5.6  Absence of Undisclosed Liabilities.........................................................17
         SECTION 5.7  Absence of Certain Changes or Events.......................................................18
         SECTION 5.8  Litigation.................................................................................18
         SECTION 5.9  Registration Statement and Proxy Statement.................................................18
         SECTION 5.10  No Violation of Law.......................................................................18
         SECTION 5.11  Compliance with Agreements................................................................19
         SECTION 5.12  Taxes.....................................................................................19
         SECTION 5.13  Employee Benefit Plans; ERISA.............................................................19
         SECTION 5.14  Labor Controversies.......................................................................21
         SECTION 5.15  Environmental Matters.....................................................................21
         SECTION 5.16  Non-competition Agreements................................................................21
         SECTION 5.17  Title to Assets...........................................................................22
         SECTION 5.18  Reorganization and Pooling of Interests...................................................22
         SECTION 5.19  Company Stockholders' Approval............................................................22
         SECTION 5.20  Brokers and Finders.......................................................................22
         SECTION 5.21  Opinion of Financial Advisor..............................................................23

                                                    

ARTICLE VI CONDUCT OF BUSINESS PENDING THE MERGER................................................................23

         SECTION 6.1  Conduct of Business by the Company Pending the Merger......................................23
         SECTION 6.2  Conduct of Business by Parent and Subsidiary Pending the Merger............................25
         SECTION 6.3  Control of the Company's Operations........................................................26
         SECTION 6.4 Control of Parent's Operations..............................................................26
         SECTION 6.5  Acquisition Transactions...................................................................26

ARTICLE VII  ADDITIONAL AGREEMENTS...............................................................................28

         SECTION 7.1  Access to Information......................................................................28
         SECTION 7.2  Registration Statement and Proxy Statement.................................................28
         SECTION 7.3  Stockholders' Approvals....................................................................29
         SECTION 7.4  Compliance with the Securities Act.........................................................29
         SECTION 7.5  Exchange Listing...........................................................................29
         SECTION 7.6  Expenses and Fees..........................................................................29
         SECTION 7.7  Agreement to Cooperate.....................................................................30

SECTION 7.8  Public Statements...................................................................................31

         SECTION 7.9  Notification of Certain Matters............................................................31
         SECTION 7.10  Directors' and Officers' Indemnification..................................................32
         SECTION 7.11  Corrections to the Joint Proxy Statement/Prospectus and Registration Statement............33
         SECTION 7.12  Employment and Consulting Agreements......................................................33

ARTICLE VIII  CONDITIONS.........................................................................................34

         SECTION 8.1  Conditions to Each Party's Obligation to Effect the Merger.................................34
         SECTION 8.2  Conditions to Obligation of the Company to Effect the Merger...............................35
         SECTION 8.3  Conditions to Obligations of Parent and Subsidiary to Effect the Merger....................35

                                        - ii -

          
                                   TABLE OF CONTENTS
                                     (continued)
                                                                                                               Page         

ARTICLE IX  TERMINATION, AMENDMENT AND WAIVER....................................................................36

         SECTION 9.1  Termination................................................................................36
         SECTION 9.2  Effect of Termination......................................................................37
         SECTION 9.3  Amendment..................................................................................37
         SECTION 9.4  Waiver.....................................................................................37

ARTICLE X  GENERAL PROVISIONS....................................................................................38

         SECTION 10.1  Non-Survival of Representations and Warranties............................................38
         SECTION 10.2  Notices...................................................................................38
         SECTION 10.3  Interpretation............................................................................39
         SECTION 10.4  Miscellaneous.............................................................................39
         SECTION 10.5  Counterparts..............................................................................39
         SECTION 10.6  Parties in Interest.......................................................................39


                                         - iii -

</TABLE>




                  STOCK  OPTION  AGREEMENT,  dated as of the 10th day of August,
1998 (this  "Agreement"),  between American Disposal Services,  Inc., a Delaware
corporation   ("Issuer"),   and  Allied  Waste  Industries,   Inc.,  a  Delaware
corporation ("Grantee").

                  WHEREAS,   contemporaneously   with  the   execution  of  this
Agreement, the Grantee, a wholly-owned subsidiary of Grantee ("Merger Sub"), and
Issuer are entering into an Agreement  and Plan of Merger,  dated as of the date
hereof (the "Merger Agreement"),  pursuant to which Grantee and Issuer intend to
effect a merger of Merger Sub with and into Issuer (the "Merger"); and

                  WHEREAS,   as  an   inducement   and  condition  to  Grantee's
willingness to enter into the Merger  Agreement,  and in consideration  thereof,
the Board of Directors of Issuer has approved the grant to Grantee of the option
pursuant to this Agreement;  provided, that such grant was expressly conditioned
upon,  and made of no effect until after,  execution  and delivery of the Merger
Agreement by Issuer, Grantee and Merger Sub.

                  NOW,  THEREFORE,  in  consideration  of the  premises  and the
mutual  covenants and  agreements  set forth in this Agreement and in the Merger
Agreement, the parties agree as follows:

                  1.  The  Option.  (a)  Issuer  hereby  grants  to  Grantee  an
unconditional,  irrevocable  option (the  "Option") to purchase,  subject to the
terms  hereof,  up to 4,000,000  fully paid and  nonassessable  shares of common
stock,  having a par value of .01 per  share  ("Common  Stock"),  of Issuer at a
price per share in cash equal to $40.00 (the "Option Price"); provided, however,
that in no event shall the number of shares for which the Option is  exercisable
exceed 19.9% of the shares of Common Stock issued and outstanding at the time of
exercise (without giving effect to the shares of Common Stock issued or issuable
under the Option) (the "Maximum Applicable Percentage"). The number of shares of
Common Stock  purchasable  upon  exercise of the Option and the Option Price are
subject to adjustment as set forth in this Agreement.

                  (b) In the event that any  additional  shares of Common  Stock
are issued or  otherwise  become  outstanding  after the date of this  Agreement
(other  than  pursuant to this  Agreement),  the  aggregate  number of shares of
Common Stock  purchasable upon exercise of the Option  (inclusive of shares,  if
any,  previously  purchased upon exercise of the Option) shall  automatically be
increased  (without  any further  action on the part of Issuer or Grantee  being
necessary)  so that,  after  such  issuance,  it equals the  Maximum  Applicable
Percentage. Any such increase shall not affect the Option Price.



<PAGE>


                  2.       Exercise; Closing.

                  (a) Conditions to Exercise; Termination.  Grantee or any other
person that shall  become a holder of all or a part of the Option in  accordance
with the terms of this Agreement  (each such person,  including  Grantee,  being
referred to as the "Holder") may exercise the Option, in whole or in part, after
the occurrence of a Triggering  Event by delivering a written notice as provided
in Section  2(d) within 180 days of the  occurrence  of a  Triggering  Event (as
defined in  Section  2(b)).  The  Option  shall  terminate  upon  either (i) the
occurrence  of the Effective  Time (as defined in the Merger  Agreement) or (ii)
(A) if the Notice Date (as hereinafter defined) has not previously occurred, the
close of  business  on the  earlier  of (x) the day 180 days after the date that
Grantee  becomes  entitled  to receive  the  Termination  Fee (as defined in the
Merger  Agreement)  and (y) the  date  that  Grantee  is no  longer  potentially
entitled to receive the  Termination  Fee, in each case under Section  7.6(b) of
the Merger Agreement,  and (B) if the Notice Date has previously  occurred,  one
year  after the Notice  Date (the  events in (i) or (ii)  being  referred  to as
"Exercise Termination Events".)

                  (b) Triggering Event. A "Triggering Event" shall have occurred
if the Merger  Agreement is terminated  and Grantee then or  thereafter  becomes
entitled to receive the Termination Fee pursuant to Section 7.6(b) of the Merger
Agreement.

                  (c) Notice of Trigger  Event by Issuer.  Issuer  shall  notify
Grantee promptly in writing of the occurrence of any Triggering  Event, it being
understood  that the giving of the notice by Issuer  shall not be a condition to
the right of the Holder to exercise the Option.

                  (d)  Notice  of  Exercise  by  Grantee.  If a Holder  shall be
entitled to and wishes to exercise the Option, it shall send to Issuer a written
notice (the date on which it is given,  as defined in Section 16, is referred to
as the "Notice Date")  specifying (i) the total number of shares that the Holder
will  purchase  pursuant to the  exercise  and (ii) a place and date (a "Closing
Date") not earlier than three business days nor later than 60 business days from
the Notice Date for the closing of the purchase (a "Closing"); provided, that if
a filing is required under the Hart-Scott-Rodino  Antitrust  Improvements Act of
1976,  as amended  (the "HSR Act") or prior  notification  to or approval of any
other  authority is required in  connection  with this  purchase,  the Holder or
Issuer,  as  required,  promptly  after the giving of the notice  shall file the
notice or application for approval and shall expeditiously  process the same and
the period of time  referred  to in clause  (ii) shall  commence  on the date on
which the Holder furnishes to Issuer a supplemental written notice setting forth
the Closing  Date,  which notice  shall be furnished as promptly as  practicable
after all required  notification  periods shall have expired or been  terminated
and all required  approvals  shall have been obtained and all requisite  waiting
periods  shall have passed.  Each of the Holder and the Issuer agrees to use all
reasonable  efforts  to  cooperate  with and  provide  information  to Issuer or
Holder,  as the  case  may  be,  for  the  purpose  of any  required  notice  or
application for approval.

                                   - 2 -
<PAGE>


                  (e) Payment of Purchase  Price.  At each  Closing,  the Holder
shall pay to Issuer the aggregate  purchase price for the shares of Common Stock
purchased pursuant to the exercise of the Option in immediately  available funds
by a wire  transfer  to a bank  account  designated  by Issuer;  provided,  that
failure or refusal of Issuer to designate a bank account  shall not preclude the
Holder from exercising the option, in whole or in part.

                  (f) Delivery of Common Stock. At such Closing,  simultaneously
with the payment of the purchase  price by the Holder,  Issuer shall  deliver to
the Holder a certificate or  certificates  representing  the number of shares of
Common  Stock  purchased  by the Holder and, if the Option shall be exercised in
part only,  a new option  evidencing  the rights of the Holder to  purchase  the
balance (as adjusted  pursuant to Section  l(b)) of the shares then  purchasable
hereunder.

                  (g)  Restrictive   Legend.   Certificates   for  Common  Stock
delivered at a Closing may be endorsed with a restrictive legend that shall read
substantially as follows:

                  "The transfer of the shares represented by this certificate is
         subject to certain  provisions of an agreement  between the  registered
         holder  and  Issuer,  a copy  of  which  agreement  is on  file  at the
         principal office of Issuer,  and to resale  restrictions  arising under
         the  Securities Act of 1933, as amended.  A copy of the  aforementioned
         agreement will be mailed to the holder  without  charge  promptly after
         receipt by Issuer of a written request."

It is understood and agreed that:  (i) the reference to the resale  restrictions
of the Securities Act of 1933, as amended (the  "Securities  Act"), in the above
legend shall be removed by delivery of  substitute  certificate(s)  without this
reference if the Holder  shall have  delivered to Issuer a copy of a letter from
the staff of the Securities  and Exchange  Commission,  or a written  opinion of
counsel, in form and substance reasonably  satisfactory to Issuer, to the effect
that this legend is not required for purposes of the  Securities  Act;  (ii) the
reference  to the  provisions  of this  Agreement  in the above  legend shall be
removed by delivery of substitute  certificate(s)  without this reference if the
shares have been sold or transferred  in compliance  with the provisions of this
Agreement  and under  circumstances  that do not require the  retention  of such
reference;  and  (iii)  the  legend  shall be  removed  in its  entirety  if the
conditions  in the  preceding  clauses  (i) and  (ii)  both  are  satisfied.  In
addition,  the  certificates  shall bear any other  legend as may be required by
applicable law.

                                   - 3 -
<PAGE>


                  (h) Ownership of Record;  Tender of Purchase Price;  Expenses.
Upon the giving by the Holder to Issuer of a written notice of exercise referred
to in  Section  2(e)  and  the  tender  of  the  applicable  purchase  price  in
immediately  available  funds,  the  Holder  shall be deemed to be the holder of
record  of  the   shares  of  Common   Stock   issuable   upon  such   exercise,
notwithstanding  that the stock transfer books of Issuer shall then be closed or
that  certificates  representing such shares of Common Stock shall not have been
delivered to the Holder.  Issuer shall pay all expenses,  and any and all United
States  federal,  state and local  taxes  (other than  income  taxes  payable by
Holder)  and  other  charges  that  may  be  payable  in  connection   with  the
preparation,  issue and delivery of stock  certificates  under this Section 2 in
the name of the Holder or its assignee, transferee or designee.

                  3.       Covenants of Issuer.  In addition to its other 
agreements and covenants herein, Issuer agrees:

                  (a) Shares  Reserved  for  Issuance.  To  maintain,  free from
preemptive  rights,  sufficient  authorized  but unissued or treasury  shares of
Common  Stock  so that the  Option  may be fully  exercised  without  additional
authorization  of  Common  Stock  after  giving  effect  to all  other  options,
warrants,  convertible  securities and other rights of third parties to purchase
shares of Common Stock from Issuer, or to issue the appropriate number of shares
of Common Stock pursuant to the terms of this Agreement;

                  (b) No  Avoidance.  Not to avoid or seek to avoid  (whether by
charter amendment or through reorganization,  consolidation, merger, issuance of
rights,  dissolution  or sale of  assets,  or by any  other  voluntary  act) the
observance or performance  of any of the covenants,  agreements or conditions to
be observed or  performed  hereunder  by Issuer and not to take any action which
would cause any of its representations or warranties not to be true; and

                  (c) Further Assurances. Promptly after the date hereof to take
all actions as may from time to time be required  (including  (i) complying with
all applicable premerger notification, reporting and waiting period requirements
under the HSR Act and (ii) in the event that prior  approval of or notice to any
other regulatory  authority is necessary under any applicable federal,  state or
local law before the Option may be exercised,  cooperating fully with the Holder
in preparing and  processing the required  applications  or notices) in order to
permit each Holder to exercise  the Option and  purchase  shares of Common Stock
pursuant to such exercise and to take all action necessary to protect the rights
of the Holder against dilution.

                  4.  Representations  and  Warranties of Issuer.  Issuer hereby
represents and warrants to Grantee that Issuer has all requisite corporate power
and  authority  and has taken  all  corporate  action  necessary  to  authorize,
execute,  deliver  and  perform  its

                                   - 4 -
<PAGE>


obligations  under  this  Agreement  and  to  consummate  the  transactions
contemplated  hereby;  this  Agreement  has been  duly and  validly  authorized,
executed and delivered by Issuer and  constitutes a valid and binding  agreement
of Issuer  enforceable  against Issuer in accordance with its terms,  subject to
bankruptcy,  insolvency,  fraudulent  transfer,  reorganization,  moratorium and
similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles.  Issuer hereby further represents and warrants
to Grantee that it has taken all  necessary  corporate  action to authorize  and
reserve for  issuance  upon  exercise  of the Option the shares of Common  Stock
issuable upon  exercise of the Option and that all shares of Common Stock,  upon
issuance pursuant to the Option, will be delivered free and clear of all claims,
liens,  encumbrances,  and security  interests (other than those created by this
Agreement)  and not subject to any preemptive  rights.  There are no agreements,
instruments,   securities,   arrangements,  or  plans  which  would  create  any
additional  cost or burden on any  exercise of the Option.  Issuer has taken all
action  necessary to make  inapplicable to Grantee any state takeover,  business
combination,  control share or other similar statute and any charter  provisions
which would  otherwise be  applicable  to Grantee or any  transaction  involving
Issuer and  Grantee by reason of the grant of the  Option,  the  acquisition  of
beneficial  ownership  of shares of Common Stock as a result of the grant of the
Option,  or the  acquisition  of shares of Common  Stock  upon  exercise  of the
Option,  except for statutes or provisions which by their terms cannot be waived
or rendered inapplicable by any action of the Board of Directors of the Issuer.

                  5.  Representations and Warranties of Grantee.  Grantee hereby
represents and warrants to Issuer that Grantee has all requisite corporate power
and  authority  and has  taken  all  corporate  action  necessary  in  order  to
authorize, execute, deliver and perform its obligations under this Agreement and
to consummate the transactions contemplated hereby; this Agreement has been duly
and validly  authorized,  executed and  delivered by Grantee and  constitutes  a
valid and binding agreement of Grantee enforceable against Grantee in accordance
with  its  terms,  subject  to  bankruptcy,   insolvency,  fraudulent  transfer,
reorganization, moratorium and similar laws of general applicability relating to
or affecting creditors' rights and to general equity principles.

                  6.  Exchange;  Replacement.  This  Agreement  and  the  Option
granted hereby are exchangeable,  without expense,  at the option of the Holder,
upon  presentation  and surrender of this  Agreement at the principal  office of
Issuer,  for other Agreements  providing for Options of different  denominations
entitling  the holder  thereof to purchase in the  aggregate  the same number of
shares  of  Common  Stock  purchasable  at  such  time  hereunder,   subject  to
corresponding  adjustments  in the number of shares of Common Stock  purchasable
upon exercise so that the aggregate number of such shares under all Stock Option
Agreements  issued in respect  of this  Agreement  shall not exceed the  Maximum
Applicable  Percentage.  Unless the context shall require  otherwise,  the terms
"Agreement"  and  "Option" as used in this  Agreement  include any Stock  Option

                                   - 5 -
<PAGE>

Agreements and related  options for which this Agreement (and the option granted
hereby) may be  exchanged.  Upon (i)  receipt by Issuer of  evidence  reasonably
satisfactory  to it of the  loss,  theft,  destruction,  or  mutilation  of this
Agreement, (ii) receipt by Issuer of reasonably satisfactory  indemnification in
the case of loss,  theft or destruction and (iii) surrender and  cancellation of
this Agreement in the case of mutilation,  Issuer will execute and deliver a new
Agreement of like tenor and date. Any new Agreement executed and delivered shall
constitute an additional  contractual  obligation on the part of Issuer, whether
or not the Agreement so lost,  stolen,  destroyed or mutilated shall at any time
be enforceable by any person other than the holder of the new Agreement.

                  7.  Adjustments.  In addition to the  adjustment  to the total
number of shares  of  Common  Stock  purchasable  upon  exercise  of the  Option
pursuant to Section l(b), the total number of shares of Common Stock purchasable
upon the exercise and the Option Price shall be subject to adjustment  from time
to time as follows:

                  (a) In the event of any  change in the  outstanding  shares of
Common   Stock   by   reason   of   stock   dividends,    split-ups,    mergers,
recapitalizations,  combinations, subdivisions, conversions, exchanges of shares
or the like,  the type and  number of shares of Common  Stock  purchasable  upon
exercise of the Option shall be  appropriately  adjusted,  and proper  provision
shall be made in the agreements governing any such transaction,  so that (i) any
Holder shall receive upon exercise of the Option the number and class of shares,
other  securities,  property  or cash that such  Holder  would have  received in
respect of the shares of Common Stock purchasable upon exercise of the option if
the Option had been exercised and such shares of Common Stock had been issued to
such  Holder  immediately  prior to such event or the record date  therefor,  as
applicable;  and (ii) in the event any additional  shares of Common Stock are to
be issued or otherwise become  outstanding as a result of any such change (other
than  pursuant  to an exercise  of the  Option),  the number of shares of Common
Stock  purchasable upon exercise of the Option shall be increased so that, after
such  issuance  and  together  with  shares of Common  Stock  previously  issued
pursuant  to the  exercise  of the Option (as  adjusted on account of any of the
foregoing  changes in the  Common  Stock),  the number of shares so  purchasable
equals the Maximum Applicable Percentage of the number of shares of Common Stock
issued and outstanding immediately after the consummation of such change; and

                  (b) Whenever the number of shares of Common Stock  purchasable
upon exercise hereof is adjusted as provided in this Section 7, the Option Price
shall be adjusted by multiplying  the Option Price by a fraction,  the numerator
of which is equal to the number of shares of Common Stock  purchasable  prior to
the adjustment and the  denominator of which is equal to the number of shares of
Common Stock purchasable after the adjustment.

                                   - 6 -
<PAGE>


                  8.  Registration.  (a) At any time after the  occurrence  of a
Triggering Event prior to an Exercise  Termination  Event,  Issuer shall, at the
request of Grantee  delivered  in the  written  notice of exercise of the option
provided for in Section 2(e), as promptly as practicable prepare,  file and keep
current a shelf registration  statement under the Securities Act covering any or
all shares  issued and  issuable  pursuant  to the Option and shall use its best
efforts to cause such  registration  statement  to become  effective  and remain
current in order to permit the sale or other disposition of any shares of Common
Stock issued upon total or partial  exercise of the Option ("Option  Shares") in
accordance with any plan of disposition requested by Grantee; provided, however,
that  Issuer  may  postpone  filing  a  registration  statement  relating  to  a
registration  request by Grantee  under this Section 8 for a period of time (not
in  excess  of 90  days)  if in its  judgment  such  filing  would  require  the
disclosure of material  information that Issuer has a bona fide business purpose
for preserving as  confidential.  Issuer will use its best efforts to cause such
registration  statement first to become  effective and then to remain  effective
for 365 days  after the later of the (i) day the  registration  statement  first
becomes effective or until such earlier date as all shares registered shall have
been sold by Grantee or the  Holders and (ii) the Closing  Date.  In  connection
with any such  registration,  Issuer and Grantee  shall  provide each other with
representations,  warranties, indemnities and other agreements customarily given
in  connection  with such  registrations.  If requested by Grantee in connection
with  such  registration,  Issuer  shall  become  a  party  to any  underwriting
agreement  relating  to the  sale of such  shares,  but  only to the  extent  of
obligating  Issuer  in  respect  of  representations,  warranties,  indemnities,
contribution  and  other   agreements   customarily  made  by  issuers  in  such
underwriting agreements.

                  (b) In the event that Grantee so requests,  the closing of the
sale or other disposition of the Common Stock or other securities  pursuant to a
registration  statement filed pursuant to Section 8(a) shall occur substantially
simultaneously with the exercise of the Option.

                  9.       Repurchase of Option and/or Shares.

                  (a)  Repurchase;  Repurchase  Price.  Upon the occurrence of a
Triggering Event prior to an Exercise Termination Event, (i) at the request of a
Holder,  delivered in writing within 180 days of this  occurrence (or such later
period as  provided  in  Section  2(d) with  respect to any  required  notice or
application  or in Section  10),  Issuer  shall  repurchase  the Option from the
Holder, in whole or in part, at a price (the "Option Repurchase Price") equal to
the  number of shares of Common  Stock then  purchasable  upon  exercise  of the
Option (or such lesser number of shares as may be  designated in the  Repurchase
Notice (as defined  below))  multiplied by the amount by which the  market/offer
price (as defined  below)  exceeds the Option Price and (ii) at the request of a
Holder or any person who has been a Holder (for purposes of this Section 9 only,
each such person being  referred to as a "Holder"),  delivered in writing within
180 days of this
                                   - 7 -
<PAGE>

occurrence  (or such later  period as provided in Section 2(d) with respect
to any required notice or application or in Section 10), Issuer shall repurchase
such number of Option  Shares from such Holder as the Holder shall  designate in
the Repurchase Notice at a price (the "Option Share Repurchase  Price") equal to
the number of shares designated  multiplied by the market/offer  price. The term
"market/offer  price" shall mean the highest of (w) the Option Price plus $2.00,
(x) the price per share of Common Stock at which a tender or exchange  offer for
Common  Stock has been made  after the date of this  Agreement  and prior to the
delivery of the Repurchase Notice and which offer has either been consummated or
has not been  withdrawn or terminated  as of the date payment of the  Repurchase
Price is made,  (y) the price per share of Common  Stock to be paid by any third
party  pursuant  to an  agreement  with  Issuer  for a merger,  share  exchange,
consolidation  or  reorganization  entered  into after the date hereof and on or
prior to the delivery of the Repurchase Notice and (z) the average closing price
for  shares of Common  Stock on the NYSE (or,  if the  Common  Stock is not then
listed  on the  NYSE,  any  other  national  securities  exchange  or  automated
quotation  system on which the Common  Stock is then  listed or quoted)  for the
twenty  consecutive  trading  days  immediately  preceding  the  delivery of the
Repurchase  Notice. In the event that a tender or exchange offer is made for the
Common  Stock or an  agreement  is entered  into for a merger,  share  exchange,
consolidation or  reorganization  involving  consideration  other than cash, the
value of the  securities or other  property  issuable or deliverable in exchange
for the  Common  Stock  shall  be  determined  in  good  faith  by a  nationally
recognized  investment banking firm selected by Issuer and reasonably acceptable
to Grantee.

                  (b) Method of  Repurchase.  A Holder may exercise its right to
require Issuer to repurchase the Option,  in whole or in part, and/or any Option
Shares then owned by such Holder pursuant to this Section 9 by surrendering  for
this purpose to Issuer, at its principal office,  this Agreement or certificates
for Option  Shares,  as  applicable,  accompanied by a written notice or notices
stating that the Holder elects to require Issuer to repurchase the Option and/or
such Option  Shares in  accordance  with the  provisions of this Section 9 (each
such  notice,  a  "Repurchase  Notice").  Within  two  business  days  after the
surrender of the Option and/or  certificates  representing Option Shares and the
receipt of the Repurchase Notice,  Issuer shall deliver or cause to be delivered
to the Holder the  applicable  Option  Repurchase  Price and/or the Option Share
Repurchase  Price  or, in  either  case,  the  portion  that  Issuer is not then
prohibited under applicable law and regulation from so delivering.  In the event
that the  Repurchase  Notice shall request the repurchase of the Option in part,
Issuer  shall  deliver  with the  Option  Repurchase  Price a new  Stock  Option
Agreement  evidencing  the right of the Holder to purchase that number of shares
of Common  Stock  purchasable  pursuant to the Option at the time of delivery of
the Repurchase  Notice minus the number of shares of Common Stock represented by
that portion of the Option then being repurchased.

                                        - 8 -
<PAGE>


                  (c)  Effect  of  Statutory   or   Regulatory   Restraints   on
Repurchase.  To the extent that,  upon or following the delivery of a Repurchase
Notice,   Issuer  is  prohibited   under   applicable  law  or  regulation  from
repurchasing  the Option (or a portion) and/or any Option Shares subject to such
Repurchase  Notice (and Issuer  hereby  undertakes  to use its  reasonable  best
efforts to obtain all required  regulatory  and legal  approvals and to file any
required  notices  as  promptly  as  practicable  in  order to  accomplish  this
repurchase),  Issuer  shall  immediately  so notify the  Holder in  writing  and
thereafter  deliver or cause to be  delivered,  from time to time, to the Holder
the portion of the option Repurchase Price and the Option Share Repurchase Price
that Issuer is no longer  prohibited  from  delivering,  within 2 business  days
after the date on which it is no longer so prohibited;  provided,  however, that
upon  notification  by Issuer in writing of this  prohibition,  the Holder  may,
within 5 days of receipt of this notification from Issuer, revoke in writing its
Repurchase  Notice,  whether  in  whole  or to the  extent  of the  prohibition,
whereupon,  in the latter case,  Issuer shall promptly (i) deliver to the Holder
that portion of the option  Repurchase  Price and/or the Option Share Repurchase
Price that Issuer is not  prohibited  from  delivering;  and (ii) deliver to the
Holder,  as  appropriate,  (a) with  respect to the Option,  a new Stock  Option
Agreement  evidencing  the right of the Holder to purchase that number of shares
of Common Stock for which the surrendered Stock Option Agreement was exercisable
at the time of delivery of the Repurchase Notice less the number of shares as to
which the Option  Repurchase Price has theretofore been delivered to the Holder,
and/or (b) with respect to Option Shares, a certificate for the option Shares as
to which the Option Share Repurchase Price has not theretofore been delivered to
the  Holder.  Notwithstanding  anything  to  the  contrary  in  this  Agreement,
including,  without  limitation,  the time  limitations  on the  exercise of the
Option,  the  Holder  may  exercise  the  Option  for 180 days after a notice of
revocation has been issued pursuant to this Section 9(c).

                  (d)  Acquisition  Transactions.   In  addition  to  any  other
restrictions  covenants,  Issuer  hereby agrees that, in the event that a Holder
delivers  a  Repurchase  Notice,  it shall not enter or agree to enter  into any
Acquisition  Transaction  unless  the other  party or parties  thereto  agree to
assume in writing Issuer's  obligations under Section 9(a) and,  notwithstanding
any notice of  revocation  delivered  pursuant to the proviso to Section 9(c), a
Holder may require such other party or parties to perform  Issuer's  obligations
under  Section  9(a)  unless  such party or  parties  are  prohibited  by law or
regulation from such  performance,  in which case such party or parties shall be
subject to the obligations of the Issuer under Section 9(c).

                  10.  Extension of Exercise  Periods.  The 180-day  periods for
exercise of certain rights under Sections 2 and 9 shall be extended in each such
case at the request of the Holder to the extent  necessary to avoid liability by
the Holder under Section 16(b) of the Exchange Act by reason of this exercise.

                                   - 9 -
<PAGE>


                  11.  Standstill.  Upon an exercise of the Option which results
in Grantee or any Holder owning in excess of 9.9% of the then outstanding shares
of Common Stock, the person who would own in excess of 9.9% of such shares shall
be subject to the following restrictions:

                  (a) it and its  affiliates  will  not (and  will  not  assist,
provide or arrange  financing to or for others or encourage other to),  directly
or indirectly,  acting alone or as part of a group,  (i) propose to Issuer or to
any of Issuer's  security holders or any other person any merger,  consolidation
or  similar  transaction,  acquisition  of a  substantial  portion  of  Issuer's
business or assets,  an acquisition  of any of Issuer's  securities or any other
transaction involving any of Issuer's securities,  in any such case involving it
and the Issuer or the Issuer and any third  party,  (ii)  acquire by purchase or
otherwise, or agree, propose or offer to acquire any of the securities of Issuer
or any interest  therein (other than pursuant to exercises of the Option,  stock
dividends  or other  distributions  by the Issuer or  offerings  by Issuer  made
available to holder of shares of Common Stock  generally),  (iii) otherwise seek
to  influence  or  control,   in  any  manner   whatsoever,   (including   proxy
solicitation, becoming a "participant" in any "election contest," or otherwise),
the  management  or  policies  of the  Issuer or (iv)  enter  into  discussions,
negotiations,  arrangements or understandings with, or solicit or encourage, any
third party with respect to any of the  foregoing or make public  disclosure  in
respect  of  any  of  the  foregoing  or  request  permission  to do  any of the
foregoing.  (As used in this  Agreement,  the term  "affiliate"  shall  have the
meaning  set  forth  in Rule  12b-2 of the  Securities  Exchange  Act of  1934.)
(Notwithstanding the foregoing, any employee benefit, pension or similar plan of
such person or the Company,  as the case may be, may own, acquire or transfer up
to 1% of any  class  of  securities  of an  Issuer  in the  ordinary  course  of
business, solely for investment.); and

                  (b) it shall not  sell,  transfer  or  dispose  of the  Option
Shares (a "Transfer") except:

                           (i)      to affiliated or associated persons who 
                                     agree to become subject to this
                                    Agreement on the same terms as such person;

                           (ii)     in connection with a bona fide pledge, after
                                    default  in the  obligation  secured  by the
                                    pledge;

                           (iii)    an offering or distribution of the Shares in
                                    compliance  with the Securities Act in which
                                    reasonable efforts are made not to knowingly
                                    sell  5% or  more  of the  then  outstanding
                                    shares  of  Common  Stock to any one  person
                                    (including  its affiliates and other members
                                    of a  "group"  within  the  meaning  of Rule
                                    13(d)(3) of the  Securities  Exchange Act of
                                    1934);

                                        - 10 -
<PAGE>


                           (iv)     in compliance with the  requirements of Rule
                                    144 under the Securities Act;

                           (v)      in privately  negotiated  transactions which
                                    would not, to the  reasonable  knowledge  of
                                    such person after reasonable inquiry,  after
                                    giving effect to the Transfer  result in the
                                    acquiror's  ownership  of 5% or  more of the
                                    outstanding shares of Common Stock;

                           (vi)     pursuant to a tender or  exchange  offer (as
                                    such  terms  are  used  in  the   Securities
                                    Exchange  Act of  1934  and  the  rules  and
                                    regulations  promulgated thereunder) made by
                                    a party not  affiliated or  associated  with
                                    such person for all outstanding Shares as to
                                    which offer a majority of the  directors  of
                                    the   Issuer   then  in   office   have  not
                                    recommended that  stockholders not tender or
                                    exchange their Shares; or

                           (vii)    pursuant  to a tender or  exchange  offer by
                                    the   Issuer   or  in  a  merger   or  other
                                    transaction  pursuant to an  agreement  with
                                    the Issuer.

                  These  restrictions  shall expire upon the earlier of (i) five
years from the date of this  Agreement  and (ii) the date upon which such person
owns less  than 5% of the  outstanding  shares  of Common  Stock so long as this
person  continues to own less than 5% of the outstanding  shares of Common Stock
for the next twelve  consecutive  months and, if its  ownership is 5% or more of
the outstanding shares during this twelve month period,  then these restrictions
shall once again apply to that person.

                  12.  Assignment.  Neither  party  hereto may assign any of its
rights or  obligations  under this  Agreement  or the Option to any other person
without the express  written  consent of the other party except that Grantee may
assign its rights in whole or in part to any of its affiliates and, in the event
that a Triggering Event shall have occurred,  Grantee may assign the Option,  in
whole or in part to one or more third  parties,  provided that the affiliate and
any third party shall execute this  Agreement  and become  subject to its terms.
Any attempted  assignment in  contravention  of the preceding  sentence shall be
null and void.

                  13.  Filings;  Other Actions.  Each of Grantee and Issuer will
use its best efforts to make all filings  with,  and to obtain  consents of, all
third parties and govern mental  authorities  necessary for the  consummation of
the transactions contemplated by this Agreement.

                                   - 11 -
<PAGE>


                  14. Specific Performance. The parties acknowledge that damages
would be an inadequate remedy for a breach of this Agreement by either party and
that the  obligations of the parties shall be specifically  enforceable  through
injunctive or other equitable relief.

                  15. Severability;  Etc. If any term,  provision,  covenant, or
restriction contained in this Agreement is held by a court or a federal or state
regulatory   agency  of  competent   jurisdiction   to  be  invalid,   void,  or
unenforceable,   the  remainder  of  the  terms,   provisions,   covenants,  and
restrictions  contained in this Agreement shall remain in full force and effect,
and shall in no way be affected,  impaired, or invalidated.  If for any reason a
court or  regulatory  agency  determines  that the  Holder is not  permitted  to
acquire,  or Issuer is not  permitted to  repurchase  pursuant to Section 9, the
full  number of shares of Common  Stock  provided  in  Section  l(a)  hereof (as
adjusted  pursuant (b) and 7 hereof),  it is the express  intention of Issuer to
allow Holder to acquire or to require Issuer to repurchase such lesser number of
shares as may be  permissible,  without any  amendment or  modification  of this
Agreement.

                  16. Notices.  All notices,  requests,  instructions,  or other
documents  to be given  hereunder  shall be in writing and shall be deemed given
(i) three  business days  following  sending by  registered  or certified  mail,
return receipt requested,  postage prepaid, (ii) when sent if sent by facsimile,
provided  that the fax is promptly  confirmed by telephone  confirmation,  (iii)
when delivered, if delivered personally to the intended recipient,  and (iv) one
business  day  later,  if sent by  overnight  delivery  via a  national  courier
service,  in each case at the  respective  addresses of the parties set forth in
the Merger Agreement.

                  17.  Governing Law. This Agreement  shall be deemed to be made
in and in all respects  shall be  interpreted,  construed and governed by and in
accordance with the law of the State of Delaware, without regard to the conflict
of law principles thereof.

                  18. Expenses.  Except as otherwise  expressly provided in this
Agreement  or in the  Merger  Agreement,  all costs  and  expenses  incurred  in
connection  with  this  Agreement  and  the  transactions  contemplated  by this
Agreement shall be paid by the party  incurring the expense,  including fees and
expenses of its own financial consultants,  investment bankers, accountants, and
counsel.

                  19.  Entire  Agreement,  Etc.  This  Agreement  and the Merger
Agreement  constitute  the  entire  agreement,  and  supersede  all other  prior
agreements,  understandings,  representations  and warranties,  both written and
oral, between the parties, with respect to the subject matter of this Agreement.
The terms and conditions of this Agreement  shall inure to the benefit of and be
binding upon the parties  hereto and their  respective  successors and permitted
assigns. Nothing in this Agreement,  expressed or implied, is

                                   - 12 -
<PAGE>

intended  to confer  upon any  party,  other  than the  parties,  and their
respective successors and permitted assigns, any rights,  remedies,  obligations
or  liabilities  under or by  reason  of this  Agreement,  except  as  expressly
provided in this Agreement.

                  20.  Limitation  on  Profit.  (a)  Notwithstanding  any  other
provision of this  Agreement,  in no event shall the Grantee's  Total Profit (as
hereinafter  defined)  plus any  Termination  Fee paid to  Grantee  pursuant  to
Section 7.6(b) of the Merger  Agreement exceed in the aggregate $40 million and,
if it otherwise  would exceed this amount,  the Grantee,  at its sole  election,
shall  either (i) reduce  the number of shares of Common  Stock  subject to this
Option,  (ii) deliver to the Issuer for  cancellation  Option Shares  previously
purchased  by  Grantee,  (iii) pay cash to the Issuer,  or (iv) any  combination
thereof,  so that Grantee's  realized  Total Profit,  when  aggregated  with the
Termination  Fee so paid to Grantee  shall not exceed $40 million  after  taking
into account the foregoing actions.

                  (b)  Notwithstanding  any other  provision of this  Agreement,
this Option may not be exercised for a number of shares as would, as of the date
of  exercise,  result in a Notional  Total  Profit  (as  defined  below)  which,
together with any Termination  Fee theretofore  paid to Grantee would exceed $40
million;  provided, that nothing in this sentence shall restrict any exercise of
the Option permitted hereby on any subsequent date.

                  (c) As used in this  Agreement,  the term "Total Profit" shall
mean the aggregate  amount (before  taxes) of the following:  (i) (x) the amount
received by Grantee and any other Holder pursuant to Issuer's  repurchase of the
Option (or any  portion  thereof)  or any Option  Shares  pursuant to Section 9,
less, in the case of any repurchase of Option Shares,  (y) the Grantee's and any
other Holder's  purchase price for such Option Shares,  as the case may be, (ii)
(x) the net cash amounts (and the fair market value of any other  consideration)
received by Grantee and any other Holder  pursuant to the sale of Option  Shares
(or any other  securities  into  which  such  Option  Shares  are  converted  or
exchanged)  to any  unaffiliated  party,  less (y) the  Grantee's  (or any other
Holder's)  purchase price of the Option  Shares,  and (iii) the net cash amounts
(and the fair market value of any other  consideration)  received by Grantee (or
any other Holder) on the transfer of the Option (or any portion  thereof) to any
unaffiliated  party. In the case of clauses (ii)(x) and (iii) above, the Grantee
and any Holder agrees to furnish as promptly as reasonably practicable after any
disposition  of all or a portion of the Option or Option  Shares a complete  and
correct  statement,  certified by a responsible  executive officer or partner of
the Grantee or Holder, of the net cash amounts (and the fair market value of any
other  consideration)  received in  connection  with any sale or transfer of the
Option or Option Shares.

                  (d) As  used in  this  Agreement,  the  term  "Notional  Total
Profit" with  respect to any number of shares as to which  Grantee and any other
Holder may propose to
     
                                   - 13 -
<PAGE>

exercise this Option shall be the Total Profit determined as of the date of
this  proposal  assuming  that this Option were  exercised on such date for this
number of shares and assuming  that such shares,  together with all other Option
Shares held by Grantee and any other Holders and their respective  affiliates as
of such  date,  were sold for cash at the  closing  market  price for the Common
Stock as of the close of business on the preceding  trading day (less  customary
brokerage commissions).

                  21. Captions.  The Article,  Section and paragraph captions in
this Agreement are for  convenience of reference only, do not constitute part of
this Agreement
                         
                                   - 14 -
<PAGE>

and shall not be deemed to limit or otherwise affect any of the provisions of 
this Agreement.

                  IN WITNESS WHEREOF,  this Agreement has been duly executed and
delivered by the duly  authorized  officers of the parties hereto as of the date
first written above.

                                 AMERICAN DISPOSAL SERVICES, INC.


                         By:   /s/ RICHARD DE YOUNG
                               ----------------------------------
                        Name:  Richard De Young
                               ----------------------------------
                       Title:  President and Chief Executive Officer
                               ----------------------------------


                                 ALLIED WASTE INDUSTRIES, INC.



                         By:   /s/ THOMAS H. VAN WEELDEN
                               ----------------------------------
                        Name:  Thomas H. Van Weelden
                               ----------------------------------
                       Title:  President and Chief Executive Officer
                               ----------------------------------

                                        - 15 -



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