EXHIBIT 2-1





                            STOCK PURCHASE AGREEMENT

                                      among

                                      EMCON
                            a California corporation
                                   ("Buyer"),

                        ORGANIC WASTE TECHNOLOGIES, INC.
                             a Delaware corporation
                                (the "Company"),

                                       and

                       CERTAIN STOCKHOLDERS OF THE COMPANY
                                   ("Sellers")


                             Dated January 30, 1996




                                       6



                                TABLE OF CONTENTS

                                                                          Page

1.   Definitions.........................................................  1
     "Advisors"..........................................................  1
     "Agent".............................................................  1
     "Agreement".........................................................  1
     "Audited Financial Statements"......................................  1
     "Best Efforts"......................................................  1
     "Breach"............................................................  2
     "Buyer".............................................................  2
     "Buyer's Indemnified Persons".......................................  2
     "CERCLA"...........................................................   2
     "Closing"...........................................................  2
     "Closing Date"......................................................  2
     "Code"..............................................................  2
     "Common Shares"...................................................... 2
     "Company"............................................................ 2
     "Company Disclosure Schedule"........................................ 2
     "Company Financial Statements"....................................... 2
     "Company Subsidiaries"............................................... 2
     "Consent"............................................................ 2
     "Contemplated Transactions".......................................... 3
     "Damages"............................................................ 3
     "Deposit"............................................................ 3
     "Employee Plans"..................................................... 3
     "Employment Agreement"............................................... 3
     "ERISA".............................................................. 3
     "Escrow Agreement"..................................................  3
     "Escrow Agent"......................................................  3
     "Exchange Act"......................................................  3
     "Expenses"..........................................................  3
     "Facilities"........................................................  3
     "Family" ...........................................................  3
     "GAAP"..............................................................  4
     "Governmental Authorization"........................................  4
     "Governmental Body".................................................  4
     "Hazardous Substances"..............................................  4
     "IRS" ..............................................................  4
     "Knowledge".........................................................  4
     "Knowledge of the Company"..........................................  4
     "Legal Requirement".................................................  5
     "Management Stakeholders"...........................................  5
     "Material Contracts"................................................  5


                                       7


     "Material Interest".................................................  5
     "Notes".............................................................  5
     "Options"...........................................................  5
     "Order".............................................................  5
     "Ordinary Course of Business".......................................  5
     "Pending Claims"....................................................  5
     "Person"............................................................  5
     "Preferred Shares"..................................................  5
     "Proceeding"........................................................  5
     "Purchase Price"....................................................  5
     "Related Person"....................................................  5
     "Representative"....................................................  6
     "Securities Act"....................................................  6
     "Sellers"...........................................................  6
     "Sellers' Indemnified Persons"......................................  7
     "Selling Stakeholders"..............................................  7
     "Shares"............................................................  7
     "Subsidiaries"......................................................  7
     "Technair"..........................................................  7
     "Technair Agreement"................................................  7
     "Unaudited Financial Statements"....................................  7

2.   Sale, Transfer and Exchange of Shares and Options; Closing...........  7
     2.1      Sale and Exchange...........................................  7
     2.2      Purchase Price..............................................  7
     2.3      Deposit.....................................................  8
     2.4      Closing.....................................................  8
     2.5      Closing Obligations.........................................  8
     2.6      Employment Agreement........................................ 10

3.   Representations and Warranties of the Company........................ 10
     3.1      Corporation Organization.................................... 10
     3.2      Capitalization.............................................. 11
     3.3      Corporate Authority......................................... 11
     3.4      Dissolution; Forfeiture..................................... 12
     3.5      The Company Financial Statements............................ 12
     3.6      Absence of Unaccrued or Undisclosed Liabilities............. 12
     3.7      Absence of Certain Changes.................................. 13
     3.8      Taxes....................................................... 13
     3.9      Title to Properties; Accounts Receivable.................... 14
     3.10     Proprietary Rights.......................................... 15
     3.11     Customer Lists.............................................. 16
     3.12     Benefit Plans and Arrangements.............................. 16
     3.13     Compliance with Laws; Legal Proceedings..................... 17


                                       8


     3.14     Contracts and Obligations................................... 18
     3.15     Employee Relations.......................................... 19
     3.16     Insurance................................................... 19
     3.17     Environmental Compliance.................................... 19
     3.18     Advances; Related Party Transactions........................ 20
     3.19     Powers of Attorney.......................................... 21
     3.20     No Brokers.................................................. 21
     3.21     Other Agreements to Sell the Company........................ 21
     3.22     Banking Relationships....................................... 21
     3.23     Information Supplied........................................ 21
     3.24     Execution and Performance of Agreement...................... 21

4.   Representations and Warranties of Sellers............................ 22
     4.1      Ownership of Shares and Options............................. 22
     4.2      Execution, Delivery and Enforceability of Agreement;
              No Violation................................................ 22
     4.3      Information Supplied........................................ 23
     4.4      Residence and Domicile...................................... 23
     4.5      Brokers or Finders.......................................... 23

5.   Representations and Warranties of Buyer.............................. 23
     5.1      Organization and Good Standing.............................. 23
     5.2      Execution, Delivery and Enforceability of Agreement;
              No Violation................................................ 23
     5.3      Investment Intent........................................... 24
     5.4      Certain Proceedings......................................... 24
     5.5      Brokers or Finders.......................................... 24
     5.6      Information Supplied........................................ 24
     5.7      No Material Change.......................................... 24

6.   Covenants of the Company and Sellers Prior to Closing Date........... 24
     6.1      Conduct of Business Pending Closing......................... 24
     6.2      Advice of Changes........................................... 26
     6.3      Access and Information...................................... 26
     6.4      Reasonable Efforts.......................................... 27
     6.5      Supplements to Company Disclosure Schedule.................. 27

7.   Covenants of Buyer Prior to Closing Date............................. 27
     7.1      Access to Information....................................... 27
     7.2      Approvals of Governmental Bodies............................ 27
     7.3      Supplements to Schedules.................................... 28
     7.4      Best Efforts................................................ 28
     7.5      Advice of Changes........................................... 28
     7.6      Discussions with Technair................................... 28
8.   Conditions Precedent to Buyer's Obligation to Close.................. 28
     8.1      Accuracy of Representations................................. 28


                                       9


     8.2      Conversion; Exchange........................................ 29
     8.3      Material Changes............................................ 29
     8.4      Sellers' and the Company's Performance...................... 29
     8.5      Consents.................................................... 29
     8.6      Additional Documents........................................ 29
     8.7      Termination of Stockholders' Agreement...................... 30
     8.8      No Proceedings.............................................. 30
     8.9      Approval of this Agreement by Company Board of Directors.... 30
     8.10     Company Disclosure Schedule................................. 30
     8.11     Execution by Sellers........................................ 30
     8.12     Employment Agreement........................................ 30
     8.13     Resignations of Directors................................... 30
     8.14     Notes....................................................... 30
     8.15     Note Agreement.............................................. 30

9.   Conditions Precedent to Sellers' Obligation to Close................. 30
     9.1      Accuracy of Representations................................. 31
     9.2      Approval of this Agreement by Board of Directors............ 31
     9.3      Buyer's Performance......................................... 31
     9.4      Consents.................................................... 31
     9.5      Note Agreement.............................................. 31
     9.7      No Material Adverse Change.................................. 31
     9.8      Buyer's Disclosure Schedule................................. 31
     9.9      Additional Documents........................................ 31
     9.10     No Proceedings.............................................. 32
     9.11     Execution................................................... 32
     9.12     Employment Agreement........................................ 32

10.  Covenants After the Closing Date..................................... 32
     10.1     Litigation Support.......................................... 32
     10.2     Employment Incentives....................................... 32

11.  Termination.......................................................... 33
     11.1     Automatic Termination Events................................ 33
     11.2     Other Termination Events.................................... 33
     11.3     Effect of Termination....................................... 34

12.  Indemnification; Remedies............................................ 35
     12.1     Survival.................................................... 35
     12.2     Indemnification and Reimbursement by Sellers................ 35
     12.3     Indemnification and Reimbursement by Buyer.................. 36
     12.4     Procedure for Indemnification of Third Party Claims......... 37
     12.5     Benefits.................................................... 38


                                       10


     12.6     Insurance Proceeds.......................................... 38
     12.7     Procedure for Indemnification - Other Claims................ 38
     12.8     Agents of Indemnifying Sellers for Purposes of
              Indemnification, Contribution Obligation of All Sellers..... 38

13.  General Provisions................................................... 39
     13.1     Expenses.................................................... 39
     13.2     Public Announcements........................................ 39
     13.3     Confidentiality............................................. 39
     13.4     Notices..................................................... 40
     13.5     Binding Arbitration; Service of Process..................... 41
     13.6     Further Assurances.......................................... 42
     13.7     Waiver...................................................... 42
     13.8     Entire Agreement and Modification........................... 42
     13.9     Company Disclosure Schedule................................. 43
     13.10    Assignments, Successors, and No Third Party Rights.......... 43
     13.11    Severability................................................ 43
     13.12    Section Headings, Construction.............................. 43
     13.14    Time of Essence............................................. 44
     13.15    Governing Law............................................... 44
     13.16    Counterparts................................................ 44


Exhibit No.      Document
- ----------       -----------

A                List of Selling Stakeholders

B                List of Management Stakeholders

C                Escrow Agreement

D                Note Agreement, with Loan Note as exhibit thereto

E-1              Note from the Company to Mark H. Shipps

E-2              Note from the Company to Management Stakeholders other than
                     Mark H. Shipps

F                Employment Agreement

G                List of Indemnifying Sellers



                                       11



                            STOCK PURCHASE AGREEMENT

          This Stock Purchase  Agreement (the "Agreement") is made as of January
30,  1996  among  EMCON,  a  California  corporation  ("Buyer");  ORGANIC  WASTE
TECHNOLOGIES,  INC., a Delaware  corporation  (the  "Company"),  the undersigned
holders of the Company's  Common Shares,  Preferred Shares and/or Options listed
on Exhibit A hereto (the "Selling Stakeholders"), and the undersigned holders of
the  Company's  Common  Shares  and/or  Options  listed on Exhibit B hereto (the
"Management   Stakeholders")  (the  Selling   Stakeholders  and  the  Management
Stakeholders being sometimes collectively referred to herein as the "Sellers").


                                    RECITALS

         A. The Management  Stakeholders  and the Company desire to exchange the
Common Shares and/or Options held by the Management Stakeholders for convertible
notes of the Company in the principal amounts set forth opposite each Management
Stakeholder's named on Exhibit B hereto (the "Notes").

         B. The Selling Stakeholders desire to sell and Buyer desires to buy the
Common  Shares,  the  Preferred  Shares  and/or the Options held by each Selling
Stakeholder  set forth  opposite  each Selling  Stakeholder's  name on Exhibit A
hereto for the consideration and on the terms set forth in this Agreement.

         C.  In  several  instances,  the  same  individual  is  executing  this
Agreement  in two  places,  as both a  Management  Stakeholder  and as a Selling
Stakeholder.  In such events,  the respective  interests of these individuals as
Management Stakeholders and Selling Stakeholders are set forth on Exhibits A and
B, respectively.

                                    AGREEMENT

         The parties, intending to be legally bound, agree as follows:

         1.       Definitions.  For the purposes of this Agreement, the
following terms have the meanings specified or referred to in this Section 1:


         "Advisors" -- Calfee, Halter & Griswold, counsel to the Company and the
Sellers and Raymond James & Associates,  Inc., financial advisors to the Company
and the Sellers.

         "Agent"" -- as defined in Section 12.9.

         "Agreement" -- as defined in the first paragraph hereof.

         "Audited Financial Statements" -- as defined in Section 3.5.

                                       12


         "Best  Efforts"  -- the  efforts  that a  prudent  Person  desirous  of
achieving a result would use in similar  circumstances to maximize to the extent
reasonably  practicable  the  prospects  that a  result  will  occur;  provided,
however,  that an obligation to use Best Efforts under this  Agreement  does not
require that the Person subject to such  obligation take such actions that would
result in a  material  adverse  change to the  benefits  to such  Person of this
Agreement and the Contemplated Transactions.

          "Breach"  -- a  "Breach"  of  a  representation,  warranty,  covenant,
obligation  or other  provision of this  Agreement or any  instrument  delivered
pursuant to this  Agreement  will be deemed to have  occurred if there is or has
been any material inaccuracy in or breach of, or any material failure to perform
or comply with, such representation,  warranty,  covenant or obligation, and the
term "Breach" means any such inaccuracy, breach or failure.

         "Buyer" -- as defined in the first paragraph hereof.

          "Buyer's  Disclosure  Schedule" -- the disclosure  letter delivered by
the Buyer to the Company prior to the Closing,  as the same may be  supplemented
from time to time, containing the information required by Section 5.

          "Buyer's Indemnified Persons" -- as defined in Section 11.2.

          "CERCLA" -- as defined in Section 3.17.

          "Closing" -- as defined in Section 2.4.

          "Closing  Date" -- the date and time as of which the Closing  actually
takes place.

          "Code"  -- the  Internal  Revenue  Code of 1986,  as  amended,  or any
successor  law,  and  regulations  issued by the IRS  pursuant  to the  Internal
Revenue Code or any successor law.

          "Common  Shares" -- the  issued or  issuable  shares of the  Company's
common stock.

          "Company" -- as defined in the first paragraph hereof.

          "Company  Disclosure  Schedule" -- the disclosure  letter delivered by
the Company to Buyer prior to the Closing,  as the same may be supplemented from
time to time, containing the information required by Section 3.

          "Company Financial Statements" -- as defined in Section 3.5.

          "Company Subsidiaries" -- as defined in Section 3.1.

         "Consent"  -- any  approval,  consent,  ratification,  waiver  or other
authorization (including any Governmental Authorization).

                                       13


          "Contemplated Transactions" -- all of the transactions contemplated by
this Agreement, including:

          (a) the sale to Buyers of the Shares and  Options  held by the Selling
Stakeholders by Sellers;

          (b)  the  execution,   delivery  and  performance  of  the  Employment
Agreement, the Escrow Agreement, the Note Agreement and the Notes;

          (c) the  performance  by  Buyer,  the  Company  and  Sellers  of their
respective covenants and obligations under this Agreement; and

          (d)  the  exchange  of  Shares  and  Options  held  by the  Management
Stakeholders for the Notes.

         "Damages" --  as defined in Section 12.2.

         "Date of the  Deposit"  -- the date on which the Buyer pays the Deposit
to the Escrow Agent.

         "Deposit" -- as defined in Section 2.3.

          "Employee Plans" -- as defined in Section 3.12.

         "Employment Agreement"  --  as defined in Section 2.5.

          "ERISA" -- the Employee  Retirement Income Security Act of 1974 or any
successor  law, and  regulations  and rules  issued  pursuant to that Act or any
successor law.

          "Escrow Agreement" -- as defined in Section 2.3.

          "Escrow Agent" -- as defined in Section 2.3.

          "Exchange Act"-- the Securities  Exchange Act of 1934 or any successor
law, and the  regulations or rules issued  pursuant to such Act or any successor
law.

          "Expenses" -- the aggregate  amount of all fees and expenses  incurred
in connection with the retention of Raymond James & Associates, Inc. and Calfee,
Halter & Griswold  with respect to the  Contemplated  Transactions.  Such amount
shall equal the full amount of such fees and expenses  less the amount agreed to
be paid by the Company pursuant to Section 13.1.

         "Facilities"  --  as defined in Section 3.9.

                                       14


         "Family"  --  as defined in the definition of "Related Person."

         "GAAP" --  generally  accepted  United  States  accounting  principles,
applied on a basis  consistent with the basis on which the financial  statements
referred to in Section 3.5 were prepared.

          "Governmental   Authorization"  --  any  approval,  consent,  license,
permit, waiver or other authorization issued,  granted,  given or otherwise made
available by or under the authority of any Governmental  Body or pursuant to any
Legal Requirement.

         "Governmental Body"  --  any

          (a) nation,  state,  county,  city, town,  village,  district or other
governmental jurisdiction of any nature;

          (b) federal, state, local, municipal, foreign or other government;

          (c)  governmental  or  quasi-governmental   authority  of  any  nature
(including any governmental agency, branch,  department,  official or entity and
any court or other tribunal);

          (d) multi-national organization or body; or

          (e) body  exercising,  or entitled to  exercise,  any  administrative,
executive,  judicial,  legislative,  police,  regulatory or taxing  authority or
power of any nature.

          "Hazardous Substances" -- as defined in Section 3.17.

          "Indemnifying Sellers" -- as defined in Section 12.2(a).

          "IRS" -- the United States  Internal  Revenue Service or any successor
agency,  and,  to the extent  relevant,  the  United  States  Department  of the
Treasury.

          "Knowledge"  -- a  Person  will be  deemed  to have  "Knowledge"  of a
particular fact or other matter if:

          (a) such individual is actually aware of such fact or other matter; or

          (b) a prudent  individual  could be expected to discover or  otherwise
become  aware of such fact in  carrying  out such  individual's  duties  for the
Company.

          "Knowledge  of the  Company""Knowledge  of the  Company" -- shall mean
Knowledge  of any officer or  director  of the Company  about the affairs of the
Company;  provided,  however, that a director's Knowledge shall not be construed
to require a director to make any special investigation of facts and shall be


                                       15


limited to such  knowledge  as a  director  may gain from  receiving  normal and
customary reports from executive officers.

          "Legal Requirement" -- any federal, state, local, municipal,  foreign,
international, multinational or other constitution, law, ordinance, principle of
common law, regulation, statute or treaty.

          "Management Stakeholders" -- as defined in the first paragraph hereof.

          "Material Contracts" -- as defined in Section 3.14.

          "Material  Interest"  -- as  defined  in the  definition  of  "Related
Person."

         "Note Agreement" -- as defined in Section 2.5.

          "Notes" -- as defined in Section 2.3.

          "Options"  -- the issued and  outstanding  options to purchase  Common
Shares of the Company.

          "Order"  --  any  award,  decision,   injunction,   judgment,   order,
directive, ruling, decree, subpoena or verdict entered, issued, made or rendered
by any  court,  administrative  agency,  or  other  Governmental  Body or by any
arbitrator.

          "Ordinary  Course of  Business" -- an action taken by a Person will be
deemed to have been  taken in the  "Ordinary  Course of  Business"  only if such
action is consistent  with the past practices of such Person and is taken in the
ordinary course of the normal day-to-day operations of such Person.

          "Pending Claims" -- as defined in Section 2.5.

          "Person" -- any  individual,  corporation  (including  any  non-profit
corporation),  general or limited partnership,  limited liability company, joint
venture,   estate,   trust,   association,   organization  or  other  entity  or
Governmental Body.

          "Preferred  Shares" -- the issued or issuable  shares of the Company's
Preferred  Stock  including  but not limited to the shares of Series A, Series B
and Series C Preferred Stock referenced in Section 3.2 below.

          "Proceeding"   --   any   action,    arbitration,    audit,   hearing,
investigation,  litigation or suit  (whether  civil,  criminal,  administrative,
investigative or informal) commenced,  brought, conducted or heard by or before,
or otherwise involving, any Governmental Body or arbitrator.

          "Purchase Price" -- as defined in Section 2.2(a).

                                       16


          "Related Person" -- with respect to a particular individual:

          (a) each other member of such individual's Family;

          (b) any Person that is directly or indirectly controlled by any one or
more members of such individual's Family;

          (c) any  Person in which  members  of such  individual's  Family  hold
(individually or in the aggregate) a Material Interest; and

          (d) any  Person  with  respect  to which one or more  members  of such
Individual's Family serves as a director,  officer, partner, executor or trustee
(or in a similar capacity).

With respect to a specified Person other than an individual:

          (a) any Person that  directly or indirectly  controls,  is directly or
indirectly controlled by, or is directly or indirectly under common control with
such specified Person;

          (b) any  Person  that  holds a  Material  Interest  in such  specified
Person;

          (c) each Person that serves as a director, officer, partner, executor,
or trustee of such specified Person (or in a similar capacity);

          (d) any  Person  in  which  such  specified  Person  holds a  Material
Interest; and

          (e) any Person with respect to which such specified Person serves as a
general partner or a trustee (or in a similar capacity).

For purposes of this definition,  (a) the "Family" of an individual includes (i)
the individual, (ii) the individual's spouse, (iii) any other natural person who
is related to the individual or the individual's  spouse within the first degree
and (iv) any other  natural  person who resides  with such  individual,  and (b)
"Material Interest" means direct or indirect beneficial ownership (as defined in
Rule 13d-3 under the  Securities  Exchange Act of 1934) of voting  securities or
other  voting  interests   representing  at  least  ten  percent  (10%)  of  the
outstanding  voting  power of a Person  or  equity  securities  or other  equity
interests  representing  at least ten percent  (10%) of the  outstanding  equity
securities or equity interests in a Person.

          "Representative" -- with respect to a particular Person, any director,
officer,  employee, agent, consultant,  advisor, or other representative of such
Person, including legal counsel, accountants, and financial advisors.

          "Securities  Act" -- the  Securities Act of 1933 or any successor law,
and regulations and rules issued pursuant to that Act or any successor law.



                                       17


          "Sellers" -- as defined in the first paragraph hereof.

          "Sellers' Indemnified Persons" -- as defined in Section 12.3.

          "Selling Stakeholders" -- as defined in the first paragraph hereof.

          "Shares" -- collectively, the Common Shares and Preferred Shares.

          "Subsidiaries"  -- with  respect  to any  Person  (the  "Owner"),  any
corporations or other Persons of which  securities or other interests having the
power to elect a  majority  of that  corporation's  or other  Person's  board of
directors or similar governing body, or otherwise having the power to direct the
business and policies of that corporation or other Person (other than securities
or other  interests  having such power only upon the  happening of a contingency
that has not occurred) are held by the Owner or one or more of its Subsidiaries;
when  used  without  reference  to a  particular  Person,  "Subsidiary"  means a
Subsidiary of the Company.

         "Technair" -- as defined in Section 3.24.

         "Technair Agreement" -- as defined in Section 3.24.

         "Unaudited Financial Statements" -- as defined in Section 3.5.

          2. Sale, Transfer and Exchange of Shares and Options;  Closing

          2.1 Sale and Exchange.

          (a) The  Selling  Stakeholders  shall sell and  transfer  to Buyer and
Buyer shall  purchase from the Selling  Stakeholders,  the Shares and/or Options
held by such Selling  Stakeholders and set forth opposite their names on Exhibit
A hereto for the consideration set forth on such Exhibit.

          (b) The  Management  Stakeholders  and the Company shall  exchange the
Shares and Options held by the  Management  Stakeholders  and set forth opposite
their names on Exhibit B hereto for Notes issued by the Company in the principal
amounts set forth  opposite  the names of the  Management  Stakeholders  on such
Exhibit.



                                       18


          2.2 Purchase Price.

          (a) The amount to be paid to the Selling  Stakeholders  for the Shares
and the Options to be purchased from the Selling  Stakeholders  shall be, in the
aggregate,  $13,757,072.67 (the "Purchase Price") ($13,544,143.11 of which shall
be for the Shares  purchased from the Selling  Stakeholders  and  $212,929.55 of
which shall be for the Options  purchased from the Selling  Stakeholders),  less
the pro rata share of the Expenses to be paid by such Selling Stakeholders.

          (b) The  aggregate  principal  amount of the Notes to be issued in the
exchange of the Shares and Options held by the Management  Stakeholders shall be
$1,817,927.33  ($287,285.06  of  which  shall  be for  the  Shares  held  by the
Management Stakeholders and $1,530,642.27 of which shall be for the Options held
by the Management  Stakeholders),  less the pro rata share of the Expenses to be
paid by such Management Stakeholders.

          (c) In  consideration  for the Company's  efforts and cooperation with
respect to the Contemplated Transactions, the Buyer shall pay to the Company the
sum of One Hundred Seventy-Five  Thousand Dollars ($175,000),  which the Company
shall  use to  purchase  the  minority  interests  in  certain  of  the  Company
Subsidiaries.

          2.3 Deposit2.  On or prior to February 12, 1996, the Buyer may, in its
sole  discretion,  pay a portion  of the  Purchase  Price,  in the amount of Two
Million Dollars  ($2,000,000)  (the "Deposit"),  by depositing the same with the
Bank of  California,  N.A. as escrow agent (the "Escrow  Agent")  pursuant to an
escrow  agreement  substantially  in the form attached  hereto as Exhibit C (the
"Escrow Agreement") .

          2.4  Closing.  The closing of the  purchase,  sale and  exchange  (the
"Closing") provided for in this Agreement will take place at the offices of Gray
Cary Ware & Freidenrich,  400 Hamilton Avenue, Palo Alto,  California,  at 10:00
a.m.  local  time on March 8,  1996,  or upon  such date as may be  approved  in
writing by the Buyer and the Company.

          2.5 Closing Obligations. At the Closing:

          (a) The Company or the Selling Stakeholders,  as the case may be, will
deliver to Buyer:

          (i)   certificates   representing  the  Shares  held  by  the  Selling
Stakeholders,  duly endorsed (or accompanied by duly executed stock powers), for
transfer to Buyer;

          (ii) the Options held by the Selling  Stakeholders,  accompanied by an
assignment thereof to Buyer;

                                       19


          (iii) a  certificate  executed  by the Company and each of the Selling
Stakeholders   representing   and   warranting   to  Buyer   that  each  of  the
representations  and warranties by him, her or it in this Agreement was accurate
in all  material  respects  as of the Date of the Deposit and is accurate in all
material  respects as of the Closing Date as if made on the Closing Date (giving
full effect to any  supplements  to the Company  Disclosure  Schedule  that were
delivered by the Company to Buyer prior to the Closing Date in  accordance  with
Section 6.5); and

          (iv) such other  documents as are required to be provided  pursuant to
Section 8; and

          (b) Buyer will deliver:

          (i) to each Selling Stakeholder, the amount, as set forth in Exhibit A
to be paid  to such  Selling  Stakeholder  at the  Closing,  less  such  Selling
Stakeholder's pro rata share of the Expenses. Such amounts shall be paid by bank
cashier's  check if the amount to be paid to such  Selling  Stakeholder  is less
than Five Hundred Thousand  Dollars  ($500,000) and by wire transfer to accounts
specified  by the Selling  Stakeholder  if the amount to be paid to such Selling
Stakeholder is greater than Five Hundred Thousand Dollars ($500,000);

          (ii) to the  Company,  the  amount  set forth in  Section  2.2(c),  by
cashier's check;

          (iii) to Sellers,  a certificate  executed by Buyer  representing  and
warranting to Buyer that each of Buyer's  representations and warranties in this
Agreement was accurate in all material respects as of the date of this Agreement
and is accurate in all  material  respects as of the Closing  Date as if made on
the Closing Date (giving full effect to any  supplements  to any schedules  that
were delivered, pursuant to this Agreement, by the Buyer to the Company prior to
the Closing Date in accordance with Section 7.3);

          (iv) to Sellers,  such other  documents as are required to be provided
pursuant to Section 9;

          (v) to the Advisors, the amounts set forth in invoices to be delivered
to Buyer not less than three (3) days prior to Closing; and

          (vi) to each Management  Stakeholder,  a Note  Agreement,  in the form
attached  hereto as Exhibit D (the "Note  Agreement")  and a Note  issued by the
Company and executed by the Buyer as a guarantor, in the form attached hereto as
Exhibit E-1 with  respect to Mark H.  Shipps and as Exhibit E-2 with  respect to
the other Management Stakeholders

          (c) the Company will deliver to each Management Stakeholder, a note in
exchange for the Options and/or Common Shares held by him or her (the "Note") in
the form  attached  hereto as Exhibit E-1 with  respect to Mark H. Shipps and as
Exhibit E-2 with respect to the other Management Stakeholders,  in the principal
amount set forth opposite his or her name on Exhibit B hereto less such


                                       20


Management Stakeholder's pro rata share of the Expenses;

          (d) the Management Stakeholders shall deliver to the Company:

          (i)  certificates  representing  the  Shares  held  by the  Management
Stakeholders,  duly endorsed (or  accompanied by duly executed stock powers) for
transfer to the Company;

          (ii) the Options held by the Management  Stakeholders,  accompanied by
an assignment thereof, to the Company;

          (iii)  a   certificate   executed  by  the   Management   Stakeholders
representing and warranting to the Company that each of the  representations and
warranties  made by him or her in this  Agreement  was  accurate in all material
respects as of the Date of the Deposit and is accurate in all material  respects
as of the Closing Date as if made on the Closing Date (giving full effect to any
supplements  to the  Company  Disclosure  Schedule  that were  delivered  by the
Company to the Buyer prior to the Closing Date in accordance  with Section 6.5);
and

          (iv) such other  documents as are required to be provided  pursuant to
Section 8.

          2.6 Employment Agreement.  Concurrently herewith, Mark H. Shipps shall
execute  and deliver an  employment  agreement  with Buyer in the form  attached
hereto as Exhibit F (the "Employment Agreement").

          3.   Representations  and  Warranties  of  the  Company.  The  Company
represents and warrants, as of the Date of the Deposit, to Buyer that, except as
set forth on the Company Disclosure Schedule:

          3.1  Corporation Organization.

          (a) The Company is a corporation, duly incorporated,  validly existing
and in good  standing  under the laws of the State of Delaware.  The Company has
all requisite  corporate  power to own,  operate and lease its properties and to
conduct its business as now being  conducted.  The Company is duly  qualified or
licensed to do business,  and is in good standing as a foreign  corporation,  in
each state or other  jurisdiction in which it owns or leases properties or where
the  nature  of its  business  or  operations  requires  such  qualification  or
licensing,  unless the failure to do so would not have a material adverse effect
on the Company's assets,  business,  operations or financial  condition.  To the
knowledge   of  the   Company,   the  Company  has   obtained   all   approvals,
authorizations,  consents, licenses, clearances and orders of, and has currently
effective all  registrations  with, all governmental and regulatory  authorities
that are  necessary  to the conduct of its business or  operations  as now being
conducted,  except where the failure to do so would not have a material  adverse
effect on the Company.



                                       21


          (b) The only  Subsidiaries of the Company are: Omni Gen  Technologies,
Inc.,  an Ohio  corporation  ("Omni  Gen");  Keystone  Recovery,  Inc.,  an Ohio
corporation  ("Keystone");  LFG Specialties,  Inc., an Ohio corporation ("LFG");
O.W.T.  Construction Company, an Ohio corporation ("OWT"); and American Landfill
Supply Co., an Iowa corporation ("ALS") (collectively,  Omni Gen, Keystone, LFG,
OWT and ALS, the "Company Subsidiaries").  (Except where otherwise indicated or,
given the context  otherwise  appropriate,  references  herein to the  "Company"
shall also  include the Company  Subsidiaries.)  Except for a five  percent (5%)
minority interest in Keystone,  as of the Closing Date, the Company will own all
of the issued and outstanding capital stock of each of the Company Subsidiaries.
Each of the Company  Subsidiaries is duly incorporated,  validly existing and in
good  standing  in  the  state  of  its  incorporation.   Each  of  the  Company
Subsidiaries  has all requisite  corporate  power to own,  operate and lease its
properties  and to conduct  its  business  as now being  conducted.  Each of the
Company  Subsidiaries  is duly  qualified or licensed to do business,  and is in
good standing as a foreign  corporation in each state or other  jurisdiction  in
which it owns or leases  properties  or where  the  nature  of its  business  or
operations requires such qualification or licensing, unless the failure to do so
would not have a material adverse effect on its assets, business,  operations or
financial  condition.  To the  knowledge  of the  Company,  each of the  Company
Subsidiaries  has obtained all approvals,  authorizations,  consents,  licenses,
clearances and orders of, and has currently  effective all  registrations  with,
all governmental and regulatory  authorities  which are necessary to the conduct
of its business or operations as now being  conducted,  except where the failure
to do so would not have a material adverse effect on the Company.

          3.2 Capitalization3.2Capitalization.

          (a) The  authorized  capital stock of the Company  consists  solely of
7,500,000  shares of common  stock,  $0.01 par value,  and  2,841,481  shares of
preferred  stock,  $0.01 par value,  1,360,000 of which are designated  Series A
Preferred  Stock,  740,740 of which are designated  Series B Preferred Stock and
740,741 of which are designated  Series C Preferred  Stock.  There are currently
issued and  outstanding  712,000  shares of common  stock,  1,360,000  shares of
Series A Preferred Stock, 740,740 shares of Series B Preferred Stock and 740,741
shares of Series C Preferred Stock. The Company Disclosure Schedule sets forth a
true and complete  description of the authorized,  issued and outstanding shares
of the capital stock of the Company and each of the Company Subsidiaries showing
all  stockholders of the Company and each of the Company  Subsidiaries as of the
date of this Agreement.  All of the issued and outstanding shares of the Company
and the Company Subsidiaries are duly authorized, validly issued, fully paid and
nonassessable  except where  failure to be so would not have a material  adverse
effect on the business,  financial position or operating results of the Company.
All such shares have been issued in accordance with federal and applicable state
securities  laws concerning the issuance of securities.  The Company  Disclosure
Schedule  accurately  lists all holders of the Company's  capital stock and each
such person's actual ownership interest. The rights,  preferences and privileges
of the Company's  capital stock are as stated in the  Company's  Certificate  of
Incorporation, as heretofore amended.

                                       22


          (b) Except for the Options and as  otherwise  set forth in the Company
Disclosure Schedule, no options,  warrants,  conversion  privileges,  preemptive
rights,  rights to first  refusal or other  rights,  agreements  or  commitments
(written or otherwise  by the Company or to the  knowledge of the Company by any
Seller are  currently  outstanding  to purchase or otherwise  receive any of the
capital stock of the Company or the Company Subsidiaries.

          (c) The Company  has  delivered  to the Buyer  complete  and  accurate
copies of the Certificates of Incorporation and Bylaws (including all amendments
thereto)  of the Company  and each of the  Company  Subsidiaries.  Not less than
twenty (20) days before the Closing Date the Company will make  available to the
Buyer the minute  books of the Company and the Company  Subsidiaries  containing
minutes  for all  meetings  of, and written  consents  issued by the Company and
executed by, each such  corporation's  stockholders,  Board of Directors and all
committees of such Board since the date of organization of such corporation.

          3.3  Corporate  Authority.  The  Company has all  requisite  corporate
authority  and  power to  execute  and  deliver  this  Agreement  and the  other
agreements  referenced herein and to perform all of its obligations with respect
to the  Contemplated  Transactions.  The execution,  delivery and performance of
this Agreement and the other agreements  referenced  herein and the consummation
of the transactions  contemplated  hereby and thereby have been duly authorized,
or prior to the  Closing  will be duly  authorized,  by the  Company's  Board of
Directors and, if required, by its stockholders.

          3.4 Dissolution;  Forfeiture. No action at law or in equity and to the
Knowledge  of the Company no  investigation  or  proceeding,  whatsoever  is now
pending or threatened to: (a) liquidate,  dissolve or disincorporate the Company
or any of the Company  Subsidiaries,  (b) declare any of the  corporate  rights,
powers or  privileges of the Company or any of the Company  Subsidiaries,  to be
null and void or otherwise  than in full force and effect,  (c) declare that the
Company  or any of the  Company  Subsidiaries,  or their  respective  Boards  of
Directors or any of their respective officers,  agents or employees has exceeded
or violated any of their respective corporate rights,  powers or privileges,  or
(d) obtain any  decree,  order,  judgment  or other  judicial  determination  or
administrative or other ruling that would or might impede or detract from any of
the  corporate  rights,  powers or  privileges  now  vested in or claimed by the
Company or any of the Company Subsidiaries.

          3.5 The  Company  Financial  Statements.  The  consolidated  financial
statements  of the Company  for the fiscal  years  ended  December  31, 1993 and
December 31, 1994 have been  prepared and audited in  accordance  with GAAP (the
"Audited Financial Statements") and the consolidated financial statements of the
Company for year ended December 31, 1995 (the "Unaudited Financial  Statements")
(collectively,  the Audited  Financial  Statements  and the Unaudited  Financial
Statements being referred to as the "Company  Financial  Statements")  have been
prepared in accordance  with GAAP and fairly  present the financial  position of
the Company in accordance with GAAP as at the dates thereof; provided,  however,
that the Unaudited Financial  Statements do not contain the footnote disclosures
required by GAAP.

                                       23


          3.6  Absence  of  Unaccrued  or  Undisclosed  Liabilities.  Except for
claims, liabilities or obligations:

          (a) which were properly  reflected or adequately  reserved  against in
the balance sheet included as part of the Unaudited Financial Statements;

          (b) which were  incurred  in the  Ordinary  Course of  Business  since
December 31, 1995;

          (c) which are listed on the Company Disclosure Schedule;

          (d) which are less than $25,000 in any single case; or

          (e) which  result from any failure to properly  account for any of the
Company's  estimated  project  costs and/or  project  revenue  recognized in the
Audited Financial  Statements or Unaudited Financial Statements and which, taken
in the aggregate with all other accrued project and related costs and/or revenue
recognized  as of December  31,  1995,  do not result in a net  reduction in the
aggregate  profit  recognized  by the  Company  on all  projects  subsequent  to
December 31, 1995,  the Company does not have any material  liabilities  whether
absolute, accrued,  unaccrued,  contingent or otherwise whether due or to become
due.

          Except as set forth in paragraphs (a) through (e) of this Section 3.6,
the Company does not have Knowledge of and has no reasonable  grounds to know of
any  basis  for any  assertion  against  the  Company  of any  material  claims,
liabilities or  obligations of any nature  required by GAAP to be reflected in a
corporate  balance sheet which have not been fully reflected or reserved against
in the  December  31,  1995  balance  sheet  included  as part of the  Unaudited
Financial  Statements,  provided,  however, that no limitation set forth in this
Section  3.6  shall in any way  affect  any  other  representation  or  warranty
contained in this Agreement.

          3.7 Absence of Certain Changes.  Since December 31, 1995 there has not
been any: (a) material  adverse change in the business,  financial  condition or
operations  of the Company and the Company  Subsidiaries  taken as a whole,  (b)
recapitalization, amendment to the Certificate of Incorporation or Bylaws or any
change in, authorization,  creation,  issuance or agreement for issuance of, the
capital stock or any securities convertible into, or options,  warrants or other
rights to subscribe to any shares of capital stock of the Company or the Company
Subsidiaries,  or any  declaration  setting  aside or payment of any dividend or
distribution  (whether in cash,  securities or property)  with respect  thereto,
except as  contemplated  hereby,  (c)  increase in the  compensation,  direct or
indirect,  payable to any of the  officers  or  employees  of the Company or the
Company Subsidiaries, including adoption of or increase in any bonus, insurance,
pension or other employee  benefit plan,  payment or  arrangement,  or any other
agreement or arrangement with its officers, employees or stockholders, except as


                                       24


contemplated  hereby,  (d) unwaived default in respect of any Material Contracts
(as defined in Section  3.14),  except for such  defaults,  if any, which do not
have a material adverse effect on the financial position,  business or operating
results of the  Company,  (e)  material  change in the  methods  and  procedures
employed  in  keeping  the books  and  records  of the  Company  or the  Company
Subsidiaries or (f) strike or material labor dispute.

          3.8 Taxes.  All tax returns of the Company required by law (including,
without   limitation,   all   income,   unemployment   compensation,    worker's
compensation,  Social Security,  excise, privilege and franchise tax laws of the
United States or any state or municipal subdivision thereof) to be filed through
the Closing Date (true and complete  copies of which have been made available to
the  Buyer)  have  been or  will  be  duly  and  timely  filed,  and all  taxes,
assessments,  contributions,  fees and governmental charges or impositions shown
on said returns or reports  (other than those not yet due and payable or payable
without penalty or interest) have been paid, except where any failure to so file
or pay would,  individually or in the aggregate,  have a material adverse effect
on the Company and the Company  subsidiaries,  taken as a whole. The Company has
not received any notice of assessment of any federal,  state, municipal or other
tax upon or measured by its income and, to the Company's knowledge,  there is no
basis for an additional  assessment of any such tax,  except for those for which
the Company has  established  adequate  reserves.  The Company has not knowingly
waived any law or  regulation  fixing,  or  consented to the  extension  of, any
period of time for the assessment of any tax or other  governmental  imposition,
or become  committed  so to do.  There are no audits of the Company  pending and
there are no matters under discussion with any federal,  state, local or foreign
authorities with regard to the payment of any taxes by the Company. There are no
issues that have been raised by the IRS or other taxing  authority in connection
with an  examination or otherwise  which by  application  of similar  principles
could  reasonably be expected to result in a proposed  deficiency for any period
not examined.

                                       25


          3.9 Title to Properties;  Accounts  Receivable.

          (a) Except for property and assets that the Company has disposed of in
the Ordinary  Course of Business,  the Company has, and will have at the Closing
Date,  good  and  marketable  title  to  all  properties  and  assets  shown  or
represented  on the balance sheet  included as part of the  Unaudited  Financial
Statements or acquired since December 31, 1995, free and clear of all mortgages,
pledges,  liens,  defects  in  title,  conditional  sale  agreements  and  other
encumbrances,  except for liens, encumbrances and defects in title in respect of
property or assets of the Company  which:  (i) are  incidental to the conduct of
the Company's  business;  (ii) have arisen in the Company's  Ordinary  Course of
Business;  (iii) were not incurred in connection  with the borrowing of money or
the obtaining of advances or credit (other than credit  arrangements  related to
purchase money liens); and (iv) do not in the aggregate  materially detract from
the  property  and assets of the  Company.  The  Company has  performed  all the
obligations  required to be performed by it with respect to all assets leased by
it through the date hereof, except where the failure to perform would not have a
material  adverse effect on the business or financial  condition of the Company.
The Company enjoys  peaceful and  undisturbed  possession of all of its offices,
warehouses,  buildings  and all other  real  property  and  related  facilities,
whether owned,  leased or operated  (collectively,  the "Facilities"),  and such
Facilities  are not subject to any claims,  liens,  pledges,  options,  charges,
easements, security interests,  rights-of-way,  encumbrances or other rights, or
any  encroachments,  building or use restrictions,  exceptions,  reservations or
limitations  which in any material respect  interfere with or impair the present
and continued use thereof in the usual and normal conduct of its business. There
are no pending or  threatened  condemnation  proceedings  relating to any of the
Facilities.  The  Facilities  and  the  real  property  improvements  (including
leasehold  improvements),  equipment and other tangible  assets owned or used by
the Company at the Facilities are insured in amounts  believed by the Company to
be adequate and, to the Knowledge of the Company, are structurally sound with no
material  defects.  Said  items  are not  subject  to any  commitment  or  other
arrangement  for their sale by the  Company or use by third  parties  other than
commitments or arrangements entered into in the Ordinary Course of Business. The
assets are valued at or below the lower of fair market value or actual cost less
an adequate and proper  depreciation  charge. For tax purposes,  the Company has
not depreciated any of the assets in any manner inconsistent with applicable IRS
guidelines, if any.

          (b) All tangible property,  real and personal,  owned or leased by the
Company is in good operating condition and repair,  except for ordinary wear and
tear and any defects the cost of repairing  which,  singly or in the  aggregate,
would not be material or are accrued for on the Company Financial Statements. To
the knowledge of the Company, such property is in conformity with all applicable
laws, ordinances,  orders, regulations,  rules and other requirements (including
applicable   zoning,   environmental,   motor   vehicle   safety  or  standards,
occupational  safety and health laws and  regulations)  currently  in effect and
relating thereto,  except where the failure to conform would not have a material
adverse  effect  on the  business,  operations  or  financial  condition  of the
Company.

          (c) All  accounts  receivable  of the  Company  shown  on the  Company
Financial  Statements are valid,  genuine and subsisting,  arose in the Ordinary
Course of Business, and the aggregate amount thereof less the reserve for


                                       26


doubtful  accounts  with  respect  thereto  set forth in the  Company  Financial
Statements, are, to the best knowledge of the Company after due inquiry, current
and collectible within customary payment terms.

          3.10 Proprietary Rights.

          (a) The Company owns the rights to use all trademarks,  trade secrets,
trade names, copyrights,  processes,  designs, formulas,  know-how,  inventions,
licenses and  intellectual  property rights used in connection with its business
and the same are  believed  by the  Company to be  sufficient  to  conduct  such
business as it is now or heretofore has been conducted with no known or asserted
conflict with or  infringement  of the asserted or actual rights of others.  The
Company has no Knowledge of any  infringement  by any third party in  connection
with any of the  foregoing  and the Company has not taken or omitted to take any
action which would have the effect of waiving any of its rights  thereunder,  in
each case except  where such  infringement  or waiver  would not have a material
adverse effect on the business, prospects, condition (financial or otherwise) or
results of operations of the Company.  To the Knowledge of the Company, no third
party  has  filed or been  issued  or  granted  any  applications  for  patents,
trademarks,  trade names or  registered  copyrights  relating  to the  Company's
assets.

          (b)  The  Company  Disclosure  Schedule  lists  all  patents,   patent
applications,  trademarks,  trade names and registered  copyrights  owned by the
Company.  Except as set forth in the Company Disclosure Schedule, the Company is
not required to pay any royalty,  license fee or similar type of compensation in
connection  with the conduct of its business as it is now or heretofore has been
conducted.

          (c) The Company has  obtained  written  agreements  from all  required
parties and entities  assigning to the Company any material  proprietary  rights
relating to the Company's  assets.  Such  agreements are currently  valid and in
full  force  and  effect  and  except  as set  forth in the  Company  Disclosure
Schedule,  do not  contain any  provisions  or  restrictions  with regard to the
rights  granted to the Buyer  under this  Agreement.  Except as set forth on the
Company  Disclosure  Schedule,  each of the  Company's  employees  and any other
Person  who,  either  alone or in  concert  with  others,  developed,  invented,
discovered,  derived,  programmed, or designed any trade secrets of the Company,
or who have knowledge of or access to information  related to them, have entered
into  appropriate  confidentiality  agreements,  copies of which will,  at least
twenty (20) days prior to the Closing Date, have been provided to the Buyer. All
material trade secrets of the Company are currently protectable and are not part
of the public  knowledge or literature,  nor have they been used,  divulged,  or
appropriated for the benefit of any past or present  employees or other persons,
or to the detriment of, the Company.

          3.11  Customer  Lists.  The Company has provided the Buyer access to a
complete and accurate list of each of the material customers of the Company. The
relationships between the Company and its active customers and suppliers are, in
the  aggregate,  in good  standing,  and since  December 31,  1994,  no material
customer or supplier has canceled or terminated, or, to the Knowledge of the


                                       27


          Company,  threatened to cancel,  terminate or change its  relationship
with the Company in any manner adverse to the Company.

          3.12 Benefit Plans and Arrangements.

          (a)  Except as set forth in the  Company  Disclosure  Schedule,  or as
otherwise  contemplated by this Agreement,  the consummation of the Contemplated
Transactions  will not  result  in any  payment  (whether  of  severance  pay or
otherwise)  becoming due from the Company to any  employee,  consultant or other
third party.

          (b) The Company  Disclosure  Schedule  lists all pension,  retirement,
stock  purchase,  stock  option,  stock bonus,  savings or profit  sharing plan,
individual  employment  agreement,  bonus or  incentive  compensation  programs,
deferred compensation  agreements,  severance pay plans,  consultant,  bonus, or
group insurance contracts, or any other material incentive,  welfare or employee
benefit  plan,  or  similar  arrangement,  understanding  or course of  dealing,
including  all employee  benefit  plans and employee  pension  benefit  plans as
defined in Section 3(3) of ERISA (the "Employee Plans").

          (c) With respect to the Employee  Plans,  the Company  will,  at least
twenty (20) days prior to the Closing Date,  have delivered or made available to
the Buyer copies of any: (1) plans and related trust  documents  and  amendments
thereto;  (ii) the most recent  summary  plan  descriptions  and the most recent
annual report; (iii) annual reports on Form 5500 which were filed in each of the
most recent three (3) plan years, including,  without limitation,  all schedules
thereto and all  financial  statements  with  attached  opinions of  independent
accountants;  (iv) Form PBGC-1  which was filed in each of the most recent three
(3) plan  years;  (v) the most  recent  actuarial  valuation;  and (vi) the most
recent  determination  letter  received from the IRS. Such financial  statements
fairly present the financial  condition of each Employee Plan in accordance with
United States generally accepted  accounting  principles applied on a consistent
basis. All Employee Plans have been administered in substantial  compliance with
their terms, ERISA to the extent applicable, and, where applicable,  Section 401
of the Code.

          (d) No event of the type set  forth in  Section  4043(b)  of ERISA has
occurred and is continuing with respect to Employee Plans except insofar as such
an  event  may  arise  as a  result  of the  consummation  of  the  Contemplated
Transactions  or would not have a material  adverse  effect  upon the  Company's
business,  financial  position or  operating  results.  There exists no material
violation of ERISA with respect to the filing of reports, documents, and notices
regarding the Employee Plan participants or beneficiaries.  No action,  suit, or
proceeding is pending,  nor, to the Knowledge of the Company,  is any threatened
or imminent,  with respect to the assets of any of the trusts under any Employee
Plan. All amendments required to bring an Employee Plan into conformity,  in all
applicable  and material  respects,  with ERISA have been made. Any bonding with
respect to an Employee Plan required under ERISA is in full force and effect. To
the  Knowledge  of the  Company,  the Company has not  incurred  any  liability,
pursuant to Subtitle A of Title IV of ERISA,  to the  Pension  Benefit  Guaranty
Corporation.

                                       28


          (e) No breach of fiduciary responsibility has occurred with respect to
any of the Employee Plans other than such breach, if any, which would not have a
material  adverse  effect  on the  Company's  business,  financial  position  or
operating  results.  There is no suit,  litigation  or claim (other than routine
benefit claims) pending or, to the Knowledge of the Company,  threatened against
the Company or any fiduciary of any Employee Plan involving any Employee Plan or
against  any such plan or its  assets by any  employee  or former  employee  (or
beneficiary thereof) of the Company which individually or in the aggregate would
adversely affect the financial condition of any such Employee Plan.

          3.13 Compliance with Laws; Legal Proceedings.

          (a) The Company is not in violation of, or in default with respect to,
any term or provision of (i) its Certificate of Incorporation or Bylaws, or (ii)
any judgment, writ, order, injunction, or decree of any court or of any federal,
state,  or municipal  agency or authority  in any case or  proceeding  expressly
naming the Company.

          (b) To the  Knowledge of the Company,  the Company and its  operations
are  in  compliance   with   applicable   statutes,   ordinances,   regulations,
requirements   and  orders  of  the  federal   government  and  of  all  states,
municipalities,  and  agencies  thereof,  and of all  other  authorities  having
jurisdiction  in  respect  of any of its  assets or  operations  (including  any
applicable  foreign government or agency or subdivision  thereof),  except where
the failure to do so would not have a material adverse effect on the Company.

          (c) The Company has not been  threatened  with,  nor is it a party to,
directly or indirectly,  nor, to the Knowledge of the Company,  is there any set
of facts that is likely to give rise to, any material legal action, governmental
investigation,   or  other  proceeding  (governmental  or  private),   including
investigations,  inquiries, citations, complaints, orders or stipulations by any
federal, state or local agency or governmental unit, and there are no judgments,
orders,  restrictions or decrees of a continuing nature outstanding  against the
Company.  The Company has not been threatened with, nor, to the Knowledge of the
Company  is there  any set of facts  that is likely to give rise to, a charge of
any material  violation of any provision of any federal,  state,  local or other
law  (including  common law), or  administrative  regulations  in respect of its
business or property.

          3.14 Contracts and Obligations.  The Company Disclosure  Schedule sets
forth a true and complete list of the following  agreements  and  instruments to
which the  Company  is a party:  (a) all  executory  contracts,  agreements  and
instruments  having  a total  contract  price  in  excess  of  $50,000;  (b) all
contracts,  agreements  or  instruments  which  are in  the  nature  of  teaming
agreements,   joint  venture  agreements,   non-compete  agreements,   franchise
agreements, exclusive license agreements or other similar agreements restricting
access  to any  business  opportunity  of the  Company;  (c)  all  loan  or debt
agreements,  guarantees, indemnities and bonding commitments; (d) all license or
technology transfer agreements;  (e) all leases, subleases and equipment leases,
having a total contract price in excess of $50,000;  (f) all agreements  between
the  Company,  on  the  one  hand,  and  any  of  the  officers,   directors  or
stockholders;  (g) all material agreements between the Company, on the one hand,
and any other  employees  of the  Company on the other  hand;  (h) all  material
licenses or permits issued by any government agency or authority for the benefit
of the Company and/or one or more of the Company Subsidiaries; (i) any


                                       29


management or consultation  agreement not terminable at will without  liability;
(j) any contracts or agreements  requiring the payment of fees or commissions in
connection with any sale of all or  substantially  all of the Company's stock or
assets or any sale of a substantial  interest in the Company;  and (k) any other
agreement which materially affects the Company's business, financial position or
operating results or which was entered into other than in the Ordinary Course of
Business (collectively,  the "Material Contracts"). The Company has delivered to
the Buyer  true and  complete  copies  of each of the  Material  Contracts.  The
Company is not in  material  violation  of, or in default  with  respect to, any
Material Contract and the Material Contracts are valid, binding and enforceable,
subject only to applicable  bankruptcy,  insolvency  and similar laws  affecting
creditors  rights  generally  and  subject,  as to  enforceability,  to  general
principles of equity. To the Knowledge of the Company, the relationships between
the Company and the other  parties to each of the Material  Contacts are in good
standing,  and no such other  contract  party has  canceled  or  terminated,  or
threatened to cancel,  terminate or change in any manner  adverse to the Company
such relationship or the terms of any Material Contract.

          3.15 Employee Relations.

          (a) The Company has no union or collective bargaining  agreement,  any
contract or other agreement with any labor  organization or with any employee or
consultant  which is not terminable at will by the Company,  without  liability,
and no such  contract or  agreement is under  discussion  by  management  of the
Company with any employee or consultant.  There are no pending or threatened (i)
strikes,  work  stoppages,  slowdowns or picketing  respecting  employees of the
Company,  (ii) unfair labor practice  complaints  against the Company,  or (iii)
statutes, contracts or agreements,  domestic or foreign, which will obligate the
Company to make any severance payments as a consequence of the execution of this
Agreement or the consummation of the Contemplated Transactions.

          (b) The Company has not received notice that there is any key employee
who intends to leave the Company's  employ as a result of, or at the  conclusion
of, the Contemplated Transactions. The Company's relationship with its employees
is good.

          3.16 Insurance3.16  Insurance3.16  Insurance. The properties and risks
of the Company are covered by valid and currently  effective  insurance policies
issued in favor of the  Company,  which  policies  are set forth on the  Company
Disclosure Schedule,  and the Company is included as an insured party under such
policies,  with full  rights as loss  payee.  The  Company  Disclosure  Schedule
contains a list and brief  description of each insurance policy (copies of which
have been  previously  provided  to the Buyer)  maintained  with  respect to the
Company (or such corporation's assets or operations),  which provides continuing
coverage as of the date hereof. The Company Disclosure  Schedule also includes a
list and brief description of individual claims in excess of $10,000 now pending
or made  during  the  36-month  period  immediately  preceding  the date of this
Agreement, by or on behalf of the Company under any insurance policies.

                                       30


          3.17 Environmental Compliance.

          (a)  The  Company  has  all  material  permits,   licenses  and  other
authorizations  required  under  applicable  laws and  regulations  relating  to
pollution control and protection of the environment  necessary for the operation
of its Facilities.  The Company is not in material violation of any of the terms
or conditions of any such permits, licenses,  leases, or authorizations.  To the
Knowledge  of the  Company,  the  Company  has not  acted  or  failed  to act in
violation of any law or regulation,  order or other  requirement of governmental
authorities  with respect to the  pollution or the  atmosphere,  surface  water,
groundwater  and noise,  the  handling of toxic or hazardous  waste  material or
other  matters  related  to the  environment.  There are no  pending  or, to the
Knowledge  of the  Company,  threatened  civil or criminal  actions,  notices of
violations  or  administrative  proceedings  relating  to  pollution  control or
protection of the environment  that would have a material  adverse effect on the
business or financial condition of the Company.

          (b) To the Knowledge of the Company, there are no material conditions,
circumstances, activities, practices, incidents, actions or plans which would be
reasonably  likely  to  interfere  with  or  prevent   compliance  or  continued
compliance by the Company with any environmental laws currently in force or with
any existing regulation,  code, order, decree, judgment,  injunction,  notice or
demand letter issued, entered,  promulgated or approved thereunder, or which may
give  rise  to any  common  law or  other  legal  liability,  including  without
limitation,   liability   under  the   Comprehensive   Environmental   Response,
Compensation  and Liability Act  ("CERCLA") or similar  state,  foreign or local
laws,  or  otherwise  form  the  basis  of  any  claim,  action,  demand,  suit,
proceeding,  hearing, notice of violation,  study or investigation of or against
the Company, based on or related to the manufacture,  processing,  distribution,
use,  treatment,  storage,  disposal,  transport or handling,  or the  emission,
discharge,  release or threatened release into the workplace or the environment,
of any  pollutant,  contaminant,  chemical,  or  industrial,  toxic or hazardous
material,  substance or waste on any properties owned or leased by, or under the
direct control of, the Company.  Without in any way limiting the  foregoing,  no
release, emission or discharge to the environment of any hazardous substance (as
that term is currently  defined under CERCLA or under any  applicable  analogous
state law  ("Hazardous  Substance"))  has occurred or is currently  occurring in
connection  with any action or failure to act on any properties  owned or leased
by, or under the direct  control of, the Company which has or could give rise to
any liability of the Company.

          3.18 Advances;  Related Party Transactions.

          (a) There are no  receivables  of the Company owing by any  directors,
officers,  employees or  consultants  of the Company or to any  affiliate of any
such  Company  person or  entity,  other  than  advances  by the  Company in the
ordinary course of business to officers and employees for reimbursable  business
expenses.

                                       31


          (b) No stockholder,  officer, director or employee of the Company, nor
any member of the Family of any such stockholder,  officer, director or employee
owns,  or since  December  31,  1993,  has owned,  directly or  indirectly,  any
interest  exceeding  five percent (5%) in (a) any business,  corporate or other,
which is material party to any material business arrangement with the Company or
(b) any  material  property  or  rights,  tangible  or  intangible,  used in the
business of the Company.  No stockholder,  officer,  or director of the Company,
owns, directly or indirectly,  any interest in, or is an officer or director of,
any  business,  corporate  or other  (other  than as a  stockholder  of a public
company), which competes with the Company.

          3.19 Powers of Attorney.  The Company  Disclosure  Schedule contains a
complete   list  of  all  powers  of  attorney   (or  similar   instruments   or
authorizations)  granted by the Company to any person or entity. All such powers
of  attorney  (or  similar   instruments  or  authorizations)   are  subject  to
termination  or  revocation  by the Company at any time,  without  notice to any
other person or entity and without penalty.

          3.20 No Brokers.  The Company has not entered  into and will not enter
into any  contract,  agreement  or  understanding  with any  Person,  except for
Raymond James & Associates,  Inc. (a copy of which contract has been provided to
Buyer),  which may result in the  obligation  of the Company or the Buyer to pay
any finder's fee, brokerage commission or similar payment in connection with the
Contemplated Transactions

          3.21 Other Agreements to Sell the Company. Except as set forth herein,
the Company has no legal  obligation,  absolute or contingent,  to any person or
firm to  sell  any  capital  stock  of the  Company  or to  effect  any  merger,
consolidation  or other  reorganization,  or disposition of all or substantially
all the assets, of the Company.

          3.22 Banking Relationships.  The Company Disclosure Schedule correctly
and  completely  lists all banks and  accounts  in such  banks,  with  which the
Company has deposits, indicating the names of those authorized to sign documents
with  respect  to such  accounts  as of the date of the most  recently  approved
banking resolution with respect to each.

          3.23  Information  Supplied.   Neither  this  Agreement,  the  Company
Financial Statements,  the Company Disclosure Schedule, the Exhibits attached to
this Agreement, nor any other certificate, statement or document furnished or to
be  furnished  by the  Company  or the  Sellers  pursuant  to the  terms of this
Agreement,  contains or will  contain any untrue  statement  of a material  fact
known to the  Company  or the  Sellers,  respectively,  or omits or will omit to
state a material fact known by the Company or the Sellers respectively necessary
to make the statements  contained in such information not misleading in light of
the circumstances under which such statements were made.

          3.24 Execution and  Performance  of Agreement.  Except as set forth on
the Company Disclosure  Schedule,  the signing and performance by the Company of
this  Agreement,  including all other  agreements and  instruments  specifically
referred to herein, and the consummation of the Contemplated Transactions,  will
not violate any provision of, or result in the breach of or constitute a default
under any law, order, writ, injunction or decree of any court, governmental


                                       32


agency or arbitration tribunal or of any contract,  agreement,  or instrument to
which the  Company is bound,  except  where the failure to do so will not have a
material  adverse  effect on the  Company.  Except  for those  required  by that
certain Agreement between the Company and Technair SRL ("Technair")  dated as of
July 26, 1995 (the  "Technair  Agreement"),  all  material  consents,  licenses,
authorizations  or permissions  necessary to the  performance of this Agreement,
the other  agreements and instruments  referred to herein,  and the Contemplated
Transactions  have been obtained or will be obtained  prior to the Closing Date.
This  Agreement and each other  agreement  executed and delivered by the Company
and the  Sellers  pursuant to the terms of this  Agreement,  have been or by the
Closing will be duly  executed and  delivered by the Company and the Sellers and
upon such  execution  constitute  legal,  valid and binding  obligations  of the
Company and the Sellers,  enforceable in accordance with their  respective terms
except  as  limited  by  applicable  bankruptcy,   insolvency,   reorganization,
moratorium  or other laws  relating to or  affecting  enforcement  of  creditors
rights, rules or laws concerning equitable remedies.

          4.  Representations  and  Warranties  of Sellers.  Each Seller,  as to
himself,  herself or itself only, represents and warrants, as of the Date of the
Deposit,  and except as set forth on the  Company  Disclosure  Schedule,  to the
Company and Buyer as follows:

          4.1  Ownership  of  Shares  and  Options.  Except  as set forth in the
Company  Disclosure  Schedule,  the Seller owns of record and  beneficially  the
number of Common Shares,  Preferred Shares and Options,  indicated opposite such
Seller's name in Exhibit A or Exhibit B hereto,  as applicable,  with full right
and authority to sell or exchange, as applicable, such securities hereunder, and
upon delivery of such Shares and/or Options hereunder,  the Buyer or the Company
as the case may be,  will  receive  good  title  thereto,  free and clear of all
mortgages,  pledges or security  interests and not subject to any  agreements or
understandings  among any Persons with respect to the voting or transfer of such
securities other than those arising under agreements to which Buyer is a party

          4.2 Execution, Delivery and Enforceability of Agreement; No Violation.
This  Agreement  has been duly  executed  and  delivered  by or on behalf of the
Seller, and at the Closing any other documents required hereunder to be executed
and  delivered  by or on behalf of the Seller will have been duly  executed  and
delivered. This Agreement constitutes the legal, valid and binding obligation of
the Seller, enforceable against such Seller in accordance with its terms, except
as   enforcement   may  be  limited  by   applicable   bankruptcy,   insolvency,
reorganization,  fraudulent  conveyance,  moratorium  or  other  laws  affecting
creditor's  rights  generally.   Any  other  agreements  or  documents  required
hereunder to be executed and delivered by the Seller at Closing will  constitute
the  legal,  valid and  binding  agreements  of the Seller  executing  the same,
enforceable  against  such Seller in  accordance  with their  respective  terms,
except as  enforcement  may be limited  by  applicable  bankruptcy,  insolvency,
reorganization,  fraudulent  conveyance,  moratorium  or  other  laws  affecting
creditor's  rights  generally.  Neither the execution of this  Agreement nor the
consummation of the  Contemplated  Transactions  by the Seller will violate,  or
constitute a default under, or permit the acceleration of maturity of, except to


                                       33


the extent waived,  any indentures,  mortgages,  promissory notes,  contracts or
agreements  to which  such  Seller  is a party or by which  such  Seller or such
Seller's properties are bound.

          4.3  Information  Supplied.  To the Knowledge of such Seller,  neither
this  Agreement,  the  Company  Financial  Statements,  the  Company  Disclosure
Schedule, the Exhibits attached to this Agreement,  nor any other certificate or
document  furnished or to be furnished by the Company or the Sellers pursuant to
the terms of this Agreement,  contains or will contain any untrue statement of a
material fact known to the Seller or the Company, respectively, or omits or will
omit to state a material fact necessary to make the statements contained in such
information  not  misleading  in light of the  circumstances  under  which  such
statements were made.

          4.4 Residence and Domicile. The Seller is a resident of, and domiciled
in, the State  indicated  on Exhibit A or Exhibit B hereto,  as  applicable,  as
being the residence of such Seller.

          4.5  Brokers or  Finders.  Except as set forth in Section  3.20 above,
neither the Seller or any of such Seller's  agents have incurred any  obligation
or liability, contingent or otherwise, for brokerage or finders' fees or agents'
commissions  or other similar  payment in connection  with this Agreement or the
Contemplated Transactions.

          5.  Representations  and  Warranties of Buyer.  Buyer  represents  and
warrants  to Sellers  and the  Company,  as of the date hereof and except as set
forth in the Buyer's Disclosure Schedule, as follows:

          5.1  Organization  and  Good  Standing.  Buyer is a  corporation  duly
organized, validly existing, and in good standing under the laws of the State of
California.

          5.2 Execution, Delivery and Enforceability of Agreement; No Violation.
This  Agreement  has been duly  executed  and  delivered  by or on behalf of the
Buyer, and at the Closing any other documents  required hereunder to be executed
and  delivered  by or on behalf of the Buyer  will have been duly  executed  and
delivered. This Agreement constitutes the legal, valid and binding obligation of
the Buyer,  enforceable  against Buyer in accordance  with its terms,  except as
enforcement may be limited by applicable bankruptcy, insolvency, reorganization,
fraudulent  conveyance,  moratorium or other laws  affecting  creditor's  rights
generally.  Any other agreements required hereunder to be executed and delivered
by the Buyer at Closing will constitute the legal,  valid and binding agreements
of the Buyer,  enforceable  against the Buyer in accordance  with its respective
terms,   except  as  enforcement  may  be  limited  by  applicable   bankruptcy,
insolvency,  reorganization,  fraudulent  conveyance,  moratorium  or other laws
affecting  creditor's rights generally.  Neither the execution of this Agreement
nor the consummation of the  transactions  provided for herein by the Buyer will
violate,  or constitute a default under, or permit the  acceleration of maturity
of, except to the extent waived,  any indentures,  mortgages,  promissory notes,
contracts or  agreements  to which the Buyer is a party or by which the Buyer or
its  properties  are  bound.  Except  as set  forth  in the  Buyer's  Disclosure
Schedule, Buyer is not and will not be required to obtain any Consent from any


                                       34


Person in connection  with the  execution and delivery of this  Agreement or the
consummation or performance of any of the Contemplated Transactions.

          5.3 Investment Intent.  Buyer is acquiring the Shares and Options from
the  Selling  Stakeholders  for its own  account  and not  with a view to  their
distribution  within the meaning of Section 2.11 of the Securities Act. Buyer is
a sophisticated business entity,  experienced in the business of the Company and
is able to evaluate the merits and risks of acquiring the Shares and Options.

          5.4 Certain Proceedings.  There is no pending Proceeding that has been
commenced  against Buyer that challenges,  or may have the effect of preventing,
delaying, making illegal, or otherwise interfering with, any of the Contemplated
Transactions. To Buyer's Knowledge, no such Proceeding has been threatened.

          5.5  Brokers  or  Finders.  Buyer and its  officers  and  agents  have
incurred no obligation or liability,  contingent or otherwise,  for brokerage or
finders' fees or agents' commissions or other similar payment in connection with
this Agreement.

          5.6  Information  Supplied.  Neither the Buyer's Annual Report on Form
10-K for the fiscal year ending December 31, 1994, nor Quarterly Reports on Form
10-Q for the quarters ending March 31, 1995, June 30, 1995 or September 30, 1995
contains any untrue  statement  of a material  fact or omits to state a material
fact necessary to make the statements  contained therein not misleading in light
of the circumstances under which such statements were made.

          5.7 No Material  Change.  Since September 30, 1995,  there has been no
material  adverse  change  in  the  Buyer's  business,   financial  position  or
operations.

          6.  Covenants  of the  Company  and  Sellers  Prior to Closing  Date.

          6.1 Conduct of Business  Pending  Closing.  Except as  contemplated by
this Agreement or otherwise agreed to by the Buyer in writing, prior to Closing,
the Company hereby covenants and agrees as follows:

          (a) The Company will carry on its  business in the Ordinary  Course of
Business and,  without  limiting the generality of the foregoing,  (i) not sell,
assign, lease, pledge,  mortgage,  encumber or otherwise dispose of or grant any
preferential  rights in any of its assets,  or incur or become obligated to pay,
any  liabilities,  except in the Ordinary  Course of  Business,  (ii) not pay or
prepay  any  obligation  or  liability  (fixed,  contingent  or  otherwise),  or
discharge or satisfy any lien or  encumbrance,  or settle any liability,  claim,
dispute,  proceeding, suit or appeal, pending or threatened against it or any of
its assets or properties, except for current liabilities included in the Company
Financial Statements and current liabilities incurred since December 31, 1995 in
the  Ordinary  Course of Business  or current  non-material  liabilities,  (iii)
except for individual  expenditures  and commitments made in the Ordinary Course
of  Business  and  involving  amounts  not  exceeding  $100,000,  not  make  any
expenditure  or  commitment  for  the  purchase,  acquisition,  construction  or
improvement of a capital asset,  (iv) use its Best Efforts to continue in effect
all existing policies of insurance (or comparable insurance) of or relating to


                                       35


the Company,  (v) make such advances to, and investments in, each of the Company
Subsidiaries as are reasonably necessary for the proper operation of the Company
and each such Company  Subsidiary,  (vi) keep proper books of record and account
necessary to prepare financial  statements in accordance with GAAP and (vii) not
amend or terminate any Material  Contract in a manner that would have a material
adverse effect on the business,  financial  position or operating results of the
Company  or amend any  contract,  agreement  or  license to which it is a party,
which amendment would make it a Material  Contract,  unless such amendment would
not have a material  adverse  effect on the  business,  financial  condition  or
operating results of the Company and would not extend the term of such contract,
agreement or license by more than one year.

          (b) Except as required  by Section  8.2, no change will be made in the
authorized  or issued and  outstanding  capital  stock of the  Company,  and the
Company shall not issue or commit to issue any option,  warrant,  note,  bond or
other security convertible into shares of the Company's capital stock.

          (c)  Except  as set  forth  in the  Company  Disclosure  Schedule,  no
increase will be made in the  compensation  payable or to become  payable by the
Company to any of its directors,  officers,  employees,  agents,  consultants or
stockholders, including any stock options, bonus payments or other benefits.

          (d) The Company  will not effect or agree to effect any  amendment  or
supplement to, or extension of, any Employee Plan.

          (e) Except as required to make the  representations  and warranties in
Section 3.1(b) accurate,  the Company will not acquire any equity  securities or
similar  interest  in  any  other  corporation,   association,   joint  venture,
partnership,  business trust or other business entity,  or acquire the assets or
liabilities of any of the foregoing, or merge,  consolidate or otherwise combine
with any other corporation or other business entity, or enter into any agreement
providing for any of the foregoing.

          (f) The  Company  will not enter into or agree to enter into any other
contracts,  licenses or other  transactions other than in the Ordinary Course of
Business and, without  limiting the generality of the foregoing,  not enter into
or agree to enter into any contracts, agreements or instruments which are in the
nature  of  joint  venture   agreements,   non-compete   agreements,   franchise
agreements, exclusive license agreements, or other similar agreements.

          (g) Except as required by currently existing  agreements,  the Company
will not declare or pay any dividend on the outstanding  shares of the Company's
capital  stock in cash,  stock or property or redeem,  repurchase  or  otherwise
acquire any shares of the  Company's  capital  stock or enter into any agreement
providing for any of the foregoing.

                                       36


          (h) The Company and the Sellers will not solicit or initiate proposals
or offers  from any person  relating  to any  acquisition  or purchase of all or
substantially  all of the assets of, or any equity  interest  in, the Company or
any  of  the  Company  Subsidiaries,  or  any  merger,  consolidation,  business
combination  or  similar  transaction  with the  Company  or any of the  Company
Subsidiaries,  or participate in any negotiations  regarding,  or furnish to any
other  person  any  confidential  information  with  respect  to,  or  otherwise
cooperate in any way with, or  participate  in,  facilitate  or  encourage,  any
effort or attempt by any other  person to do or seek any of the  foregoing.  The
Company shall  promptly  notify the Buyer if any such proposal or offer,  or any
inquiry or contact with any person with respect thereto, is made.

          (i) No change will be made with respect to the banking or safe deposit
arrangements of the Company:

          (j) The  Company  will  use  its  Best  Efforts  to  keep  intact  the
organization  of the Company;  to keep  available  the services of the Company's
present employees; and to preserve the goodwill of its suppliers,  customers and
others having business relations with the Company; and

          (k) The Company will timely file all required material tax returns and
promptly  pay all  federal,  state and local tax  assessments  and  governmental
charges lawfully levied or assessed upon it or upon its properties,  or upon any
part thereof,  which have become due and payable,  and the Company will withhold
from its  employee's  wages and pay over all federal and state taxes required to
be withheld and paid over.

          6.2 Advice of Changes.  Prior to the Closing  Date,  the Company  will
promptly advise the Buyer in writing of (i) any known event occurring subsequent
to the date of this Agreement which would render any  representation or warranty
of the Company  contained  in this  Agreement,  if made on and as of the date of
such event or the Closing Date,  untrue or  inaccurate  in any material  respect
(other  than an  event  so  affecting  a  representation  or  warranty  which is
expressly limited to a state of facts existing at a time prior to the occurrence
of such event), and (ii) any material adverse change in the business,  financial
position or operating results of the Company occurring subsequent to the date of
this Agreement.

          6.3 Access and Information.  The Company will, at all reasonable times
prior to the  Closing  Date and upon  reasonable  notice  from  Buyer,  open its
offices, books, accounts and records,  including policies,  claims of creditors,
and obligations of the Company,  and will,  upon  reasonable  notice from Buyer,
provide  free  access to the  Company's  management  to  discuss  the  Company's
business  operations,  assets,  liabilities,  actual or potential litigation and
claims,  properties and prospects,  to working papers,  files and records of its
accountants,  each for full and  unrestricted  examination and inspection by the
Buyer, its officers,  attorneys or accountants.  Without in any way limiting the
foregoing,  the Company shall, upon the reasonable  request of the Buyer,  allow
the Buyer and its representatives  access to any property owned or leased by the
Company or the Company  Subsidiaries  for the  performance  of an  environmental
audit (the "Environmental Audit"). No such examination or inspection shall in


                                       37


any way affect,  diminish or terminate any of the  representations or warranties
of the  Company  or the  Sellers  hereunder  or the  right of the  Buyer to rely
thereon.

          6.4 Reasonable  Efforts.  Subject to the terms and  conditions  herein
provided,  the Company and each Seller shall use his, her or its Best Efforts to
(a) cause to be fulfilled and satisfied all of the  conditions to the Closing to
be fulfilled  and  satisfied by him, her or it and (b) cause to be performed all
of the matters required of him, her or it at the Closing.

          6.5  Supplements  to  Company  Disclosure  Schedule.  Sellers  and the
Company shall have the right, from time to time, on or prior to the Closing,  to
supplement the material set forth in the Company  Disclosure  Schedule initially
delivered  by the Company to Buyer.  Any  references  to the Company  Disclosure
Schedule in this Agreement or in any other  document  entered into in connection
with this Agreement shall mean the Company Disclosure  Schedule as fully amended
and supplemented on or prior to the Closing Date.

          7. Covenants of Buyer Prior to Closing Date.

          7.1 Access to Information.  Between the date of this Agreement and the
Closing Date, Buyer will afford Sellers and their  Representatives full and free
access,  upon the request of Sellers,  to copies of Buyer's public filings under
the Securities Act, the Exchange Act, and other information as Sellers and their
Representatives shall reasonably request.

          7.2 Approvals of Governmental Bodies. As promptly as practicable after
the date of this  Agreement,  Buyer  will,  and will cause  each of its  Related
Persons to, make all filings  required by Legal  Requirements to be made by them
to consummate the Contemplated Transactions.  Between the date of this Agreement
and the Closing  Date,  Buyer will,  and will cause each  Related  Person to (a)
cooperate  with Sellers with respect to all filings that Sellers are required by
Legal Requirements to make in connection with the Contemplated Transactions, and
(b) cooperate  with Sellers in obtaining all consents  identified in Part 3.2 of
the Company Disclosure Schedule.

          7.3 Supplements to Schedules. Buyer shall have the right, from time to
time, on or prior to the Closing,  to  supplement  the material set forth in any
schedule  initially  delivered  to the Company or the  Sellers  pursuant to this
Agreement.  Any references to the Buyer Disclosure Schedule in this Agreement or
in any other document  entered into in connection with this Agreement shall mean
such  schedules  as fully  amended and  supplemented  on or prior to the Closing
Date.

          7.4 Best Efforts. Subject to the terms and conditions herein provided,
the Buyer shall use its Best Efforts to (a) cause to be fulfilled  and satisfied
by it all of the  conditions  to the Closing to be  fulfilled or satisfied by it
and (b) cause to be performed all of the matters required of it at Closing.

                                       38


          7.5  Advice of  Changes.  Prior to the  Closing  Date,  the Buyer will
promptly  advise  all of the other  parties  hereto in  writing of (i) any event
occurring  subsequent  to the date of this  Agreement  which  would  render  any
representation or warranty of the Buyer contained in this Agreement,  if made on
and as of the date of such event or the Closing  Date,  untrue or  inaccurate in
any  material  respect  (other than an event so  affecting a  representation  or
warranty which is expressly limited to a state of facts existing at a time prior
to the  occurrence of such event),  and (ii) any material  adverse change in the
business  affairs  of the  Buyer  occurring  subsequent  to  the  date  of  this
Agreement.

          7.6  Discussions  with  Technair.  Buyer shall give Mark H. Shipps the
right to participate in all meetings or discussions  which include  Technair and
Buyer  following  the  execution  of this  Agreement.  Buyer  shall use its Best
Efforts to facilitate cooperative and productive discussions among Technair, the
Company,  Buyer and Wheelabrator  EOS, Inc. and, if necessary,  shall reasonably
cooperate  to  transition  Technair to a new  distributor  if  Technair  and the
Company  agree that the  Company's  exclusive  rights to  distribute  Technair's
products in the U.S. shall be modified or terminated.

          8.  Conditions  Precedent  to  Buyer's  Obligation  to Close.  Buyer's
obligation to purchase the Shares and the Options from the Selling  Stakeholders
and to take the other  actions  required  to be taken by Buyer at the Closing is
subject  to the  satisfaction,  at or  prior  to the  Closing,  of  each  of the
following conditions (any of which may be waived by Buyer, in whole or in part):

          8.1  Accuracy  of  Representations.  Each of the  representations  and
warranties in Sections 3 and 4 of this Agreement (considered collectively),  and
each of these  representations and warranties  (considered  individually),  must
have been accurate in all material  respects as of the Date of the Deposit,  and
must be accurate in all  material  respects as of the Closing Date as if made on
the Closing Date.

          8.2 Conversion; Exchange.

          (a) The Selling  Stakeholders  shall have  converted  their  Preferred
Shares into Common Shares which conversion may be contingent upon, and effective
as of the time  of,  the  Closing.  Upon the  consummation  of the  Contemplated
Transactions,  (i) Buyer will own all of the  outstanding  stock of the Company,
which shall  consist of  2,921,481  Common  Shares,  and (ii) all of the Options
shall be cancelled at the Closing.

          (b) The  Management  Stakeholders  shall have  exchanged  their Common
Shares and their Options into the Notes, as contemplated by this Agreement.

          8.3 Material  Changes.  There shall be no material  adverse changes to
the business,  financial condition or operating results of the Company since the
Date of the Deposit.

                                       39


          8.4 Sellers' and the Company's Performance.

          (a) All of the  covenants  and  obligations  that the  Sellers and the
Company are required to perform or to comply with pursuant to this  Agreement at
or prior to the Closing (considered  collectively),  and each of these covenants
and  obligations  (considered  individually),  must have been duly performed and
complied with in all material respects.

          (b)  Each  Seller  or the  Company,  as the  case  may be,  must  have
delivered each of the documents required to be delivered by such Seller pursuant
hereto  and each of the  other  covenants  and  obligations  in  required  to be
performed by Seller or the Company must have been performed and complied with in
all material respects.

          8.5 Consents. Each of the Consents required to be obtained pursuant to
Section 3.24 hereof to consummate the Contemplated  Transactions  must have been
obtained and must be in full force and effect.

          8.6  Additional  Documents.  Sellers  must have  caused the  following
documents to be delivered to Buyer:

          (a)  resolution  of the Board of Directors of the Company  authorizing
the Contemplated Transactions, certified by the Secretary of the Company;

          (b)  certificates  of good  standing from their  respective  states of
incorporation for the Company and each of the Company  Subsidiaries as of a date
no more than ten (10) days prior to the Closing Date.

          8.7   Termination  of   Stockholders'   Agreement8.7   Termination  of
Stockholders'   Agreement8.7   Termination  of  Stockholders'   Agreement.   The
Stockholders' Agreement, dated as of June 12, 1990, by and among the Company and
certain of its stockholders  (including any subsequent amendments thereto) shall
have been terminated.

          8.8 No  Proceedings8.8No  Proceedings8.8  No  Proceedings.  Except for
matters arising out of the Technair Agreement, since the date of this Agreement,
there must not have been commenced or threatened in writing against Buyer or the
Company,  or  against  any Person  affiliated  with  Buyer or the  Company,  any
Proceeding (a) involving any material  challenge to, or seeking material damages
or injunctive  relief in connection with, any of the Contemplated  Transactions,
or (b) that may have the effect of  preventing,  delaying,  making  illegal,  or
otherwise  interfering  with  any of  the  Contemplated  Transactions;  provided
however that this Section 8.7 may not be relied upon by Buyer and this condition
will be deemed to have been waived by Buyer if Sellers agree to proceed to close
hereunder  and to  indemnify  Buyer  in full  against  any  damages  that may be
incurred by reason of any claim  described in this Section 8.8 without regard to
the limitations on indemnification set forth in Section 12.2 below.

          8.9 Approval of this  Agreement by Company  Board of  Directors.  This
Agreement and the agreements  referenced herein must be approved by the Board of


                                       40


Directors of the Company and the  stockholders  of the  Company,  if required by
applicable law or the Company's Certificate of Incorporation or Bylaws.

          8.10 Company  Disclosure  Schedule.  The Company  shall have  provided
Buyer full and  complete  and final  copies of the Company  Disclosure  Schedule
which shall reflect no material  adverse  changes in the  Company's  business or
financial condition from the Date of the Deposit.

          8.11 Execution by Sellers.  All of the Sellers listed on Exhibit A and
Exhibit B hereto shall have executed this Agreement.

          8.12  Employment  Agreementnt.  The Employment  Agreement  required by
Section 2.6 hereof shall be in full force and effect.

          8.13 Resignations of Directors. All directors of the Company, with the
exception of Mark H.  Shipps,  shall have  resigned  effective as of the Closing
Date.

          8.14 Notes.  The Notes shall have been  executed and  delivered by the
Company to the Management Stakeholders.

          8.15 Note Agreement. A Note Agreement shall have been executed by each
of the Management Stakeholders.

          9.  Conditions  Precedent to Sellers'  Obligation  to Close.  Sellers'
obligations to sell or exchange the Shares and/or  Options,  as the case may be,
and to take the other actions  required to be taken by Sellers at the Closing is
subject  to the  satisfaction,  at or  prior  to the  Closing,  of  each  of the
following  conditions  (any of which may be waived by Sellers holding a majority
of the Shares, in whole or in part):

          9.1 Accuracy of  Representations.  All of Buyer's  representations and
warranties   in  Section  5  (considered   collectively),   and  each  of  these
representations  and  warranties  (considered  individually),   must  have  been
accurate in all material  respects as of the date of this  Agreement and must be
accurate  in all  material  respects  as of the  Closing  Date as if made on the
Closing Date.

          9.2 Approval of this  Agreement by Board of Directors.  This Agreement
and the agreements  referenced herein must be approved by the Board of Directors
of the Company.

          9.3 Buyer's Performance.

          (a) All of the  covenants  and  obligations  that Buyer is required to
perform or to comply with pursuant to this  Agreement at or prior to the Closing
(considered   collectively),   and  each  of  these  covenants  and  obligations
(considered  individually),  must have been  performed  and complied with in all
material respects.

                                       41


          (b) Buyer must have  delivered  each of the  documents  required to be
delivered by Buyer  pursuant to Section 2.4 and must have made the cash payments
required to be made by Buyer pursuant to Section 2.

          9.4 Consents. Each of the Consents required to be obtained pursuant to
Section 3.24 hereof to consummate the Contemplated  Transactions  must have been
obtained and must be in full force and effect.

          9.5 Note  Agreement.  The Buyer shall have  executed and delivered the
Note Agreement in the form attached hereto as Exhibit D.

          9.6 Cancellation of the Options. At the Closing, each of the Buyer and
the  Company  shall  cancel all of the  Options  acquired by it pursuant to this
Agreement.

          9.7 No  Material  Adverse  Change.  There  shall have been no material
adverse change in Buyer's  business,  financial  condition or operating  results
from the date of this Agreement.

          9.8 Buyer's  Disclosure  Schedule.  The Buyer shall have  provided the
Company  full and complete  copies of Buyer's  Disclosure  Schedule  which shall
reflect no material adverse changes in Buyer's business,  financial condition or
operating results from the date of this Agreement.

          9.9  Additional  Documents.  Buyer must have caused to be delivered to
Sellers:

          (a) resolution of the Board of Directors of the Buyer  authorizing the
Contemplated Transactions, certified by the Secretary of Buyer; and

          (b)  Certificates  of good standing for the Buyer as of a date no more
than ten (10) days prior to the Closing Date.

          9.10 No  Proceedings.  Except for matters  arising out of the Technair
Agreement,  since the date of this Agreement, there must not have been commenced
or  threatened  in writing  against the  Company or any  Seller,  or against any
Person  affiliated with the Company or any Seller,  any Proceeding (a) involving
any material  challenge to, or seeking material damages or injunctive  relief in
connection with, any of the Contemplated Transactions,  or (b) that may have the
effect of preventing,  delaying,  making illegal, or otherwise  interfering with
any of the Contemplated Transactions; provided however that this Section 9.9 may
not be relied upon by the Company or Sellers and this  condition  will be deemed
to have been waived by the Sellers and the Company if Buyer agrees to proceed to
close  hereunder  and to  indemnify  the Company and Sellers in full against any
damages that may be incurred by reason of any claim described in this Section.

                                       42


          9.11  Execution.  The Sellers  listed on Exhibit A and Exhibit B shall
have executed this Agreement.

          9.12  Employment  Agreement.  The  Employment  Agreement  required  by
Section 2.6 hereof shall be in full force and effect.

          10. Covenants After the Closing Date.

          10.1  Litigation  Support.  In the  event and for so long as any party
actively is  contesting  or  defending  against any  action,  suit,  proceeding,
hearing, investigation, charge, complaint, claim, or demand in connection with:

          (a) any of the Contemplated Transactions; or

          (b) any fact, situation,  circumstance,  status, condition,  activity,
practice,  plan,  occurrence,   event,  incident,  action,  failure  to  act  or
transaction  on or prior to the Closing Date involving any of the Company or the
Company  Subsidiaries,  then the other  party  shall  cooperate  with it and its
counsel in the defense or contest, make available its personnel and provide such
testimony  and  access  to its  books  and  records  as  shall be  necessary  in
connection with the defense or contest,  all at the sole cost and expense of the
contesting  or defending  party  (unless the  contesting  or defending  party is
entitled to indemnification under Section 12 hereof).

          10.2 Employment Incentives1.  For a period of at least three (3) years
following  the  Closing,  employees  of the  Company  shall  continue to receive
performance-based  compensation  generally  consistent  with the practice of the
Company in the years prior to the Closing.

          11. Termination11.

          11.1 Automatic  Termination Events. This Agreement will terminate,  as
of 5:00 p.m.  Pacific time, on February 12, 1996,  without any further action by
any party  hereto,  if the  Deposit is not  received  by the Escrow  Agent on or
before such date and time.

          11.2 Other Termination  Events.  This Agreement may also be terminated
after the Date of the Deposit:

          (a) by written  notice  delivered  to the other  parties  hereto at or
prior to the Closing

          (i) by (A) Buyer if a Breach of any  provision of this  Agreement  has
been committed by any Seller or by the Company or (B) the Company if a Breach of
any provision of this Agreement has been committed by the Buyer, and such Breach
set forth in (A) or (B) has not been waived, or cured within ten (10) days after
receipt of written  notice of such Breach by the party  against whom such Breach
is alleged; provided, however, that the Buyer shall not be permitted to


                                       43


terminate  this  Agreement  based on any Breach by the  Company or Seller  which
relates in any manner to Technair unless Buyer can demonstrate  that such Breach
resulted  primarily from actions of the Company and/or Sellers unrelated to this
Agreement,  the Contemplated  Transactions or Buyer's discussions with Technair;
or

          (ii)  by the  Buyer  if the  supplements  to  the  Company  Disclosure
Schedule,  made pursuant to Section 6.5,  disclose a material  adverse change in
the business,  financial position or operating results of the Company, from that
set forth on the Company  Disclosure  Schedule as  delivered to the Buyer on the
date hereof and supplemented on or before the Date of the Deposit;

          (b) by written  notice  delivered  to the other  parties  hereto at or
prior to the Closing

          (i) by  Buyer  if any of the  conditions  in  Section  8 has not  been
satisfied  as of the Closing Date or if  satisfaction  of such a condition is or
becomes  impossible  (other than through the failure of Buyer to comply with its
obligations  under this Agreement) and Buyer has not waived such condition on or
before the Closing Date; or

          (ii) by Sellers owning a majority of the Shares or the Company, if any
of the  conditions in Section 9 has not been satisfied as of the Closing Date or
if satisfaction of such a condition is or becomes impossible (other than through
the  failure of Sellers or the Company to comply  with their  obligations  under
this Agreement) and Sellers and the Company have not waived such condition on or
before the Closing Date;

          (c) by mutual consent of Buyer and the Company; or

          (d) by written  notice  delivered to the other  parties  hereto at any
time after  March 15,  1996 by the  Buyer,  the  Company  or  Sellers  holding a
majority of the Shares,  if the Closing has not occurred (other than through the
failure of any party  seeking to terminate  this  Agreement to comply fully with
its obligations  under this Agreement) on or before March 15, 1996 or such later
date as the parties may agree upon.

          11.3 Effect of Termination.

          (a) In the event of the  termination  of this  Agreement  pursuant  to
Section 11.1,  no party shall have any  liability to any other party  hereunder;
provided,  however,  that the  obligations in Sections 13.1, 13.2 and 13.3 shall
survive.

          (b) Each party's  right of  termination  under  Section 11.2 after the
Date of the Deposit is in  addition  to any other  rights it may have under this
Agreement or otherwise,  and the exercise of a right of termination  will not be
an election of remedies.  If this  Agreement is  terminated  pursuant to Section
11.2,  all  further  obligations  of  the  parties  under  this  Agreement  will
terminate, except as follows:

                                       44


          (i) The obligations in Sections 13.1, 13.2 and 13.3 will survive;

          (ii) The obligations of Buyer pursuant to Section 12.3(a) will survive
if Buyer has paid the Deposit and either this Agreement has been  terminated due
to a Breach  by Buyer or this  Agreement  has been  terminated  by Buyer for any
reason other than a Breach by the Company or any Seller;

          (iii) If this Agreement is terminated by a party because of the Breach
of the  Agreement by another party the  terminating  party's right to pursue all
legal remedies will survive such termination unimpaired.

          (c) In the event that this Agreement is terminated pursuant to Section
11.2,  the Escrow  Agent shall take the  following  actions  with respect to the
Deposit:

          (i) If Buyer has terminated  the Agreement  because of a Breach of the
Agreement  by the  Company or by the  Sellers,  the Escrow  Agent  shall pay the
Deposit to the Buyer;

          (ii)  If  Buyer  and the  Company  mutually  agree  to  terminate  the
agreement, the Escrow Agent shall pay the Deposit to the Buyer;

          (iii) If the  Company or the Sellers  have  terminated  the  Agreement
because of a Breach of the  Agreement  by Buyer,  the Escrow Agent shall pay the
Deposit to the Company; and

          (iv) If the Company or the Sellers have  terminated  the Agreement for
any reason other than a Breach of the Agreement by Buyer, the Escrow Agent shall
pay the Deposit to the Buyer.

          12. Indemnification; Remedies.

          12.1 Survival.  Notwithstanding any investigation  conducted before or
after the Closing  Date,  the  parties  hereto will be entitled to rely upon the
representations  and  warranties of the other  parties  hereto set forth in this
Agreement  (as  modified  by each  party's  Disclosure  Schedule  attached as an
Exhibit to this Agreement). All representations and warranties in this Agreement
or in any instrument delivered pursuant to this Agreement will survive until the
date one (1) year after the Closing Date, at which time the  representations and
warranties  set forth in this  Agreement and all liability of the parties hereto
with respect to those  representations and warranties will terminate;  provided,
however,  that  thereafter a party hereto will remain liable with respect to any
claim of Breach of a  representation  or warranty  provided  such claim has been
asserted in writing  (specifying  in  reasonable  detail the basis and amount of
such claim) on or before the date one (1) year after the Closing Date until such
time as said claim has been finally decided, settled, or adjudicated.

                                       45


          12.2 Indemnification and Reimbursement by Sellers.

          (a) In the event the Company or any of the Sellers commits a Breach of
any of his, her or its  representations or warranties or commits a Breach of any
of his, her or its  covenants or  obligations  contained in this  Agreement  and
provided  that  Buyer  makes a written  claim for  indemnification  against  the
Sellers  within  one (1) year  after  the  Closing  Date  then,  subject  to the
limitations  set forth in  Section  12.2(b),  each of the  Sellers  set forth on
Exhibit G (the "Indemnifying  Sellers"),  severally in the percentages and up to
the amounts set forth on Exhibit G, agrees to indemnify and hold harmless Buyer,
the  Company and their  respective  Representatives,  stockholders,  controlling
persons and affiliates  (collectively,  the "Buyer's Indemnified Persons"),  and
will reimburse the Buyer's Indemnified Persons for any loss,  liability,  claim,
damage, and expense (including costs of investigation and defense and reasonable
attorneys'  fees)  whether or not  involving a third party claim  (collectively,
"Damages"),  which the Buyer's  Indemnified Persons may suffer through and after
the date of the claim for  indemnification,  arising from or in connection  with
any Breach of any representation or warranty, or covenant made by the Company or
the Sellers in this Agreement.  Subject to the foregoing and the limitations set
forth in Section 12.2(b),  each Seller shall be solely  responsible for a Breach
of such Seller's  representations  and warranties  under Section 4 hereof and no
other Seller shall have any liability therefor.

          (b) The  obligation  of the  Indemnifying  Sellers  to  indemnify  the
Buyer's  Indemnified Persons pursuant to Section 12.2(a) shall be subject to the
conditions and limitations of this Agreement including,  without limitation, the
following:

          (i)  The  Buyer's   Indemnified  Persons  shall  not  be  entitled  to
indemnification  hereunder unless the aggregate Damages exceed $150,000 and then
such indemnification  obligation shall extend only to the amount of such excess;
provided, however, that if a single Breach of any representation or warranty has
resulted in Damages exceeding $150,000,  then the indemnification  obligation of
the  Indemnifying  Sellers  pursuant to Section  12.2(a) shall not be limited by
this Section 12.2(b)(i);

          (ii) The  indemnification  obligation  of any  Management  Stakeholder
shall be payable in cash or at such Management  Stakeholder's option,  through a
setoff  reduction in the  principal  amount of the Note held by such  Management
Stakeholder;

          (iii) In no event  shall  the  Indemnifying  Sellers  be  required  to
indemnify the Buyer's Indemnified Persons for any Damages after the Indemnifying
Sellers have, in the aggregate, paid indemnification obligations (whether in the
form of cash or a setoff of the Notes) aggregating $1,500,000;

          (iv)  Indemnifying  Sellers  shall not be  required to  indemnify  the
Buyer's  Indemnified  Persons  for any  Breach  which  relates  in any manner to
Technair unless Buyer can demonstrate  that such Breach resulted  primarily from
actions of the  Company  and/or the Sellers  unrelated  to this  Agreement,  the
Contemplated Transactions or Buyer's discussions with Technair;

                                       46


          (v) The indemnification  provided by the Sellers in this Section 12 to
the  Buyer's  Indemnified  Persons  shall  be the  sole  remedy  of the  Buyer's
Indemnified  Persons for any claims  relating to the  Contemplated  Transactions
except in the event of fraud by the Sellers or the Company.

          12.3  Indemnification  and Reimbursement by Buyer.

          (a) In the event that the  Company,  any of the  Sellers or any of the
directors of the Company are subject to any damages  arising out of the Technair
Agreement  as a  result  of this  Agreement  or the  Contemplated  Transactions,
("Technair  Damages")  then the Buyer agrees to indemnify and hold harmless such
Sellers and  directors  of the Company  and each of them,  and their  respective
heirs,   representatives,   fiduciaries,   controlling  persons  and  affiliates
(collectively,  the  "Sellers'  Indemnified  Persons"),  and will  reimburse the
Sellers'  Indemnified  Persons  from any  Technair  Damages  which the  Sellers'
Indemnified  Persons  may  suffer  through  and  after the date of the claim for
indemnification.

          (b)  In  the  event  the  Buyer   commits  a  Breach  of  any  of  its
representations  and  warranties  or commits a Breach of any of its covenants or
obligations  contained in this  Agreement  and provided  that the Sellers make a
written  claim for  indemnification  against the Buyer within one (1) year after
the Closing  Date,  the Buyer agrees to indemnify  and hold harmless the Sellers
Indemnified  Persons and will  reimburse  the Sellers'  Indemnified  Persons for
Damages, which the Sellers' Indemnified Persons may suffer through and after the
date of the claim for  indemnification,  arising from and in connection with any
Breach of any  representation  or  warranty  or  covenant  made by Buyer in this
Agreement.

          12.4 Procedure for Indemnification of Third Party Claims.

          (a) Promptly after receipt by an indemnified  party under Section 12.2
or Section 12.3 of notice of the commencement of any Proceeding against it, such
indemnified  party will, if a claim is to be made against an indemnifying  party
under such Section, give notice to the indemnifying party of the commencement of
such claim,  but the failure to notify the  indemnifying  party will not relieve
the  indemnifying  party of any  liability  that it may have to any  indemnified
party,  except to the extent that the indemnifying  party  demonstrates that the
indemnifying party is prejudiced by the indemnified party's failure to give such
notice, and then only to the extent of such prejudice.

          (b) If any  Proceeding  referred  to in  Section  12.4(a)  is  brought
against an  indemnified  party and such  indemnified  party gives  notice to the
indemnifying  party of the  commencement of such  Proceeding,  the  indemnifying
party will be entitled to actively  participate in such  Proceeding  and, to the
extent that the indemnifying  party wishes (unless the indemnifying  party fails
to  provide  reasonable  assurance  to the  indemnified  party of its  financial
capacity to defend such Proceeding and provide indemnification with respect to


                                       47


such  Proceeding),  to  assume  the  defense  of such  Proceeding  with  counsel
reasonably satisfactory to the indemnified party and, from and after notice from
the  indemnifying  party to the indemnified  party of the  indemnifying  party's
election to assume the defense of such Proceeding,  the indemnifying  party will
not, as long as the  indemnifying  party  diligently  conducts such defense,  be
liable to the  indemnified  party under this  Section 12 for any fees of counsel
(other than that selected by the indemnifying  party) or any other expenses with
respect  to the  defense  of such  Proceeding,  in  each  case  incurred  by the
indemnified  party  subsequent to such notice of election from the  indemnifying
party in connection with the defense of such  Proceeding,  other than reasonable
costs of  investigation.  If the  indemnifying  party  assumes  the defense of a
Proceeding,  (i) no  compromise  or settlement of such claims may be effected by
the indemnifying party without the indemnified party's consent,  which shall not
be  unreasonably  withheld,  unless (A) there is no finding or  admission of any
violation of Legal  Requirements or any material  violation of the rights of any
Person  and no  material  effect  on any  claims  than may be made  against  the
indemnified party, and (B) the sole relief provided is monetary damages that are
paid in full by the indemnifying  party;  and (ii) the  indemnifying  party will
have no liability  with respect to any  compromise  or settlement of such claims
effected  without its  consent,  which shall not be  unreasonably  withheld.  If
notice is given to an indemnifying  party of the  commencement of any Proceeding
and the  indemnifying  party  does  not,  within  twenty  (20)  days  after  the
indemnified party's notice is given, give notice to the indemnified party of its
election to assume the defense of such Proceeding,  the indemnifying  party will
be bound by any  determination  made in such  Proceeding  or any  compromise  or
settlement effected by the indemnified party.

          (c) Notwithstanding the foregoing,  if an indemnified party determines
in good faith that  there is a  reasonable  probability  that a  Proceeding  may
adversely affect it or its affiliates other than as a result of monetary damages
for which it would be  entitled to  indemnification  under this  Agreement,  the
indemnified party may, by notice to the indemnifying party, assume the exclusive
right to defend,  compromise,  or settle such  Proceeding,  but the indemnifying
party will not be bound by any  determination of a Proceeding so defended or any
compromise  or  settlement  effected  without  its  consent  (which  may  not be
unreasonably withheld).

          (d) Sellers and Buyer hereby consent to the non-exclusive jurisdiction
of any court in which a Proceeding is brought against any indemnified person for
purposes of any claim that an  indemnified  person may have under this Agreement
with respect to such Proceeding or the matters alleged  therein,  and agree that
process may be served on Sellers or Buyer with respect to such a claim  anywhere
in the world.  Nothing in this Section  12.4(d) shall be construed as in any way
affecting the terms of Section 13.5 hereof.

          12.5  Benefits.  The amount of any  Damages  payable  by either  party
hereunder  shall be reduced by any net tax benefit or other benefit  received by
the indemnified party as a result of such claim or proceeding which gave rise to
the Damage  obligation of the indemnifying  party.  The indemnified  party shall
have the obligation to reasonably  mitigate the losses to the indemnifying party
from any claim for Damages.

                                       48


          12.6 Insurance  Proceeds.  In determining the amount of any Damages or
expenses for which any party is entitled to  indemnification  under this Section
12, the gross amount thereof will be reduced by any insurance  proceeds realized
or to be realized by such party.

          12.7  Procedure  for  Indemnification  - Other  Claims.  A  claim  for
indemnification for any matter not involving a third party claim may be asserted
by notice to the party from whom indemnification is sought.

          12.8 Agents of Indemnifying  Sellers for Purposes of  Indemnification;
Contribution Obligation of All Sellers.

          (a) Each of the  Indemnifying  Sellers  hereby  appoints  Kevin  Mohan
(representing Summit Investors, L.P., Summit Ventures, L.P., Summit Ventures II,
L.P. and SV Eurofund C.V.), Charles Hamilton (representing Environmental Venture
Fund) and Mark Shipps (representing  Management Stakeholders) as his, her or its
agents  (the  "Agents")  for  purposes of handling  all  indemnification  claims
hereunder. If any one of the foregoing is unable or unwilling to serve, then the
remaining  individuals shall  collectively  serve as Agents for purposes of this
Section 12 until a replacement is designated  pursuant to Section 12.8(e).  Each
Indemnifying  Seller  agrees  that the  Agents,  acting by vote of a majority in
interest (as  described on Exhibit G) of the  Indemnifying  Sellers,  shall have
authority to act on such Indemnifying Seller's behalf, to arrange for and handle
all matters related to a defense of any  indemnification  action required of the
Indemnifying  Sellers hereunder,  to compromise any claim, to settle any amount,
and otherwise to take any action as the Agents shall deem necessary or advisable
in connection with the Sellers'  indemnification  obligations under this Section
12.

          (b) All Sellers will be bound by the  decisions of the Agents and each
Seller shall  reimburse and contribute to the  Indemnifying  Sellers his, her or
its pro rata share (in accordance  with the  percentages set forth on Exhibits A
and B) of any indemnification  obligations of the Indemnifying Sellers resulting
under this  Section 12 based  upon the  decisions  of the Agents so long as such
decisions are made by the Agents in good faith, acting reasonably.

          (c) Upon the  resignation  or inability to serve of any of the Agents,
the  resulting  vacancy  shall be filled by the  Indemnifying  Seller or Sellers
represented by the individual who has resigned or otherwise is unable to serve.

                                       49


          13. General Provisionsal.

          13.1  Expenses.   Except  as  otherwise  expressly  provided  in  this
Agreement,  each party to the  Agreement  will bear his,  her or its  respective
expenses incurred in connection with the preparation, execution, and performance
of this  Agreement  and the  Contemplated  Transactions,  including all fees and
expenses  of  agents,  representatives,   counsel,  and  accountants;  provided,
however,  that upon the Closing of the Contemplated  Transactions,  the fees and
expenses  of Calfee,  Halter & Griswold  shall be divided  equally  between  the
Company and the Sellers up to a maximum obligation of $50,000 for the Company.

          13.2 Public  Announcements.  No party shall issue any press release or
make any public  announcement  related to the subject  matter of this  Agreement
prior to the Closing  without the prior written  approval of the Company and the
Buyer;  provided,  however,  that any party may make any  public  disclosure  it
believes in good faith is required by  applicable  law or any listing or trading
agreement concerning the publicly-traded securities of such party (in which case
the disclosing  party will use its  reasonable  best efforts to advise the other
party prior to making the disclosure and consult with the other party  regarding
the  content  thereof).  The  Company  and Buyer  will  consult  with each other
concerning the means by which the Company's  employees,  customers and suppliers
and others having dealings with the Company will be informed of the Contemplated
Transactions.

          13.3 Confidentiality.  Between the date of this Agreement and five (5)
years after the date hereof, Buyer and Sellers will maintain in confidence,  and
will cause the directors, officers, employees, agents, and advisors of Buyer and
the Company to maintain in  confidence,  and not use to the detriment of another
party or the  Company  any  written,  oral,  or other  information  obtained  in
confidence  from another party or the Company in connection  with this Agreement
or  the  Contemplated  Transactions,  expressly  including  the  reports  of all
consultants  retained  pursuant to the terms of this Agreement,  unless (a) such
information  becomes publicly  available through no fault of such party, (b) the
use of such  information  is  necessary or  appropriate  in making any filing or
obtaining  any  consent  or  approval  required  for  the  consummation  of  the
Contemplated  Transactions,  or (c) the furnishing or use of such information is
required by legal proceedings.

          If the Contemplated Transactions are not consummated,  each party will
return or destroy as much of such  written  information  as the party  providing
such information may reasonably request.

          13.4 Notices. All notices, consents, waivers, and other communications
under this  Agreement  must be in  writing  and will be deemed to have been duly
given when (a) delivered by hand (with  written  confirmation  of receipt),  (b)
sent by telecopier (with written confirmation of receipt),  provided that a copy
is mailed  within three (3) business  days by registered  mail,  return  receipt
requested,  (c)  when  received  by  the  addressee,  if  sent  by a  nationally
recognized  overnight  delivery  service (receipt  requested),  or (d) three (3)
business days after being sent by registered or certified mail, return receipt


                                       50


requested,  in each case to the appropriate addresses and telecopier numbers set
forth below (or to such other  addresses and  telecopier  numbers as a party may
designate by notice to the other parties):

          Sellers:                 To each Seller at the address set forth on
                                   Exhibits A or B

          The Company:             Organic Waste Technologies, Inc.
                                   7550 Lucerne Drive, Suite 110
                                   Cleveland, Ohio  44130
                                   Attn:  Mark H. Shipps, President
                                   Fax No.:  (216) 891-8288

          with a copy to:          Dale C. LaPorte, Esq.
                                   Calfee, Halter & Griswold
                                   1400 McDonald Investment Center
                                   800 Superior Avenue
                                   Cleveland, Ohio 44114-2688
                                   Fax No.:  (216) 241-0816

          Buyer:                   EMCON
                                   400 S. El Camino Real, Suite 1200
                                   San Mateo, California  94402
                                   Attention:  R. Michael Momboisse, Esq.
                                   Fax No.:  (415) 375-0763

          with a copy to:          Gray Cary Ware & Freidenrich
                                   400 Hamilton Avenue
                                   Palo Alto, California 94301
                                   Attention:  Eric J. Lapp, Esq.
                                   Fax No.:  (415) 327-3699

          13.5  Binding  Arbitration;  Service  of  Process.  In the  event of a
dispute  between the parties  related to or arising out of this  Agreement,  the
Agents and representatives of the Buyer and the Company will meet promptly in an
effort to resolve the dispute  amicably.  If such  parties  cannot  agree upon a
resolution  within  thirty (30) days of any such party  requesting a meeting for
resolution  of a dispute,  then the matter will promptly be submitted to binding
arbitration in accordance with this Section 13.5.

          (a)  Arbitration  will  be  held  in  San  Francisco,  California,  in
accordance  with  the  rules  and   regulations  of  the  American   Arbitration
Association.  The  number of  arbitrators  will be one and will be  selected  in
accordance  with  the  rules  and   regulations  of  the  American   Arbitration
Association.  The determination of the arbitrator will be conclusive and binding
upon the parties,  and any  determination  by the  arbitrator of an award may be
filed with the clerk of a court of competent jurisdiction as a final


                                       51


adjudication of the claim involved, or application may be made to such court for
judicial  acceptance of the award and an order of  enforcement,  as the case may
be. Except to the extent otherwise  directed by the arbitrator,  each party will
bear its own expenses, including legal and accounting fees, if any, with respect
to the arbitration,  and one-half of the costs of the arbitrator and of the fees
imposed by the American Arbitration Association.

          (b) In any arbitration  hereunder,  the demand for  arbitration  shall
specifically  delineate the claims asserted and the material issues with respect
thereto. Within thirty (30) days after filing a demand for arbitration, claimant
shall provide to respondent a list of all fact witnesses known to claimant,  the
names and curriculum  vitae of each expert  witness  anticipated to be called by
claimant,  and a copy of  relevant  documents.  Within  thirty  (30) days  after
receipt of the  foregoing  information,  respondent  shall provide to claimant a
list of all fact witnesses known to respondent,  the names and curriculum  vitae
of each expert witness  anticipated  to be called by  respondent,  and a copy of
relevant documents known to respondent. Within ten (10) days after discovery has
been closed by the arbitrator  (but in no event later than sixty (60) days prior
to the arbitration hearing),  claimant shall present to respondent a list of all
fact and expert witnesses anticipated to be called by claimant, a summary of the
substance  of  each  such  witness'  testimony,  and a  list  of  all  documents
anticipated  to be introduced  by claimant (and a copy of such  documents if not
previously provided to respondent). Within thirty (30) days after receipt of the
foregoing  information,  respondent shall present to claimant a list of all fact
and expert  witnesses  anticipated to be called by respondent,  a summary of the
substance  of  each  such  witness'  testimony,  and a  list  of  all  documents
anticipated to be introduced by respondent  (and a copy of such documents if not
previously  provided to claimant).  Any award by the arbitrator shall be subject
to all dollar and other limitations set forth in this Agreement.

          (c) A demand  for  arbitration  may be served on Buyer or  Sellers  by
certified U.S. Mail, postage prepaid, or reliable overnight delivery service, to
the address set forth in Section 13.4 hereof.

          13.6 Further Assurances. The parties agree (a) to furnish upon request
to each other such further information, (b) to execute and deliver to each other
such other documents, and (c) to do such other acts and things, all as the other
party may reasonably  request for the purpose of carrying out the intent of this
Agreement and the documents referred to in this Agreement.

          13.7 Waiver.  The rights and remedies of the parties to this Agreement
are  cumulative  and not  alternative.  Neither the failure nor any delay by any
party in exercising any right,  power,  or privilege under this Agreement or the
documents  referred to in this Agreement will operate as a waiver of such right,
power, or privilege, and no single or partial exercise of any such right, power,
or privilege will preclude any other or further  exercise of such right,  power,
or privilege or the exercise of any other right,  power,  or  privilege.  To the
maximum extent permitted by applicable law, (a) no claim or right arising out of
this Agreement or the documents  referred to in this Agreement can be discharged
by one party,  in whole or in part, by a waiver or  renunciation of the claim or
right  unless in writing  signed by the other  party;  (b) no waiver that may be
given by a party will be applicable except in the specific instance for which it


                                       52


is given;  and (c) no  notice  to or demand on one party  will be deemed to be a
waiver of any  obligation of such party or of the right of the party giving such
notice or demand to take further  action without notice or demand as provided in
this Agreement or the documents referred to in this Agreement.

          13.8 Entire Agreement and Modification.  This Agreement supersedes all
prior  agreements  between the parties  with  respect to its subject  matter and
constitutes  (along with the documents referred to in this Agreement) a complete
and exclusive  statement of the terms of the agreement  between the parties with
respect to its subject  matter.  This  Agreement may not be amended  except by a
written agreement executed by the party to be charged with the amendment.

          13.9 Company Disclosure Schedule.sclosure Schedule.

          (a) The disclosures in the Company Disclosure  Schedule,  and those in
any Supplement  thereto,  must relate only to the representations and warranties
in the Section of the  Agreement to which they  expressly  relate and not to any
other representation or warranty in this Agreement,  unless it is obvious,  from
the  disclosure,  in light of the  circumstances  under which such disclosure is
made, that other representations and warranties are affected thereby.

          (b) In the event of any  inconsistency  between the  statements in the
body of this Agreement and those in the Company Disclosure  Schedule (other than
an exception expressly set forth as such in the Company Disclosure Schedule with
respect to a specifically identified representation or warranty), the statements
in the body of this Agreement will control.

          13.10  Assignments,  Successors,  and No Third Party  Rights.  Neither
party may assign  any of its  rights  under  this  Agreement  without  the prior
consent of the other parties,  which will not be unreasonably  withheld,  except
that Buyer may assign any of its rights under this  Agreement to any  Subsidiary
of Buyer but Buyer will not be relieved of its obligations hereunder as a result
of such assignment. Subject to the preceding sentence, this Agreement will apply
to, be binding in all respects  upon, and inure to the benefit of the successors
and permitted  assigns of the parties.  Nothing expressed or referred to in this
Agreement  will be  construed  to give any Person other than the parties to this
Agreement any legal or equitable right,  remedy,  or claim under or with respect
to this Agreement or any provision of this Agreement.  This Agreement and all of
its  provisions  and  conditions  are for the sole and exclusive  benefit of the
parties to this Agreement and their successors and assigns.

          13.11 Severability. If any provision of this Agreement is held invalid
or unenforceable by any court of competent jurisdiction, the other provisions of
this  Agreement  will remain in full force and  effect.  Any  provision  of this
Agreement  held invalid or  unenforceable  only in part or degree will remain in
full force and effect to the extent not held invalid or unenforceable.

          13.12 Section Headings, Construction. The headings of Sections in this
Agreement are provided for convenience only and will not affect its construction
or  interpretation.  All  references  to "Sections"  refer to the  corresponding


                                       53


Sections of this  Agreement.  All words used in this Agreement will be construed
to be of such gender or number as the  circumstances  require.  Unless otherwise
expressly  provided,  the word "including" does not limit the preceding words or
terms.

          13.13  Interpretation of Agreement.  This Agreement has been submitted
to the scrutiny of all parties hereto and their respective  counsel and shall be
given a fair and reasonable  interpretation without consideration being given to
its having been drafted by either party or its counsel.

          13.14 Time of Essence.  With regard to all dates and time  periods set
forth or referred to in this Agreement, time is of the essence.

          13.15  Governing Law. This Agreement will be governed by and construed
under the laws of the State of  Delaware  without  regard to  conflicts  of laws
principles.

          13.16  Counterparts.  This  Agreement  may be  executed in one or more
counterparts,  each of  which  will be  deemed  to be an  original  copy of this
Agreement and all of which,  when taken  together,  will be deemed to constitute
one and the same agreement.


                                       54



         IN WITNESS WHEREOF,  the parties have executed this Agreement as of the
date first written above.







          THE BUYER

          EMCON, a California corporation


          By:    /s/ Eugene M. Herson
                ---------------------------
          Its: President & Chief Financial Officer





            THE COMPANY

            ORGANIC WASTE TECHNOLOGIES, INC, a Delaware
            corporation


            By:   /s/ Mark. Shipps
                  -------------------
            Its:   President



                                       55




                       SELLING STAKEHOLDERS

                       SUMMIT INVESTORS, L.P.

                       By:    /s/
                              ---------------------
                       Its:   ---------------------


                       SUMMIT VENTURES, L.P.

                         By:    /s/
                              ---------------------
                       Its:   ---------------------


                       SUMMIT VENTURES II, L.P.

                       By:    /s/
                              --------------------
                       Its:   --------------------


                      SV EUROFUND C.V.

                       By:    /s/
                              -------------------
                       Its:   -------------------


                       McDONALD & COMPANY
                       SECURITIES, INC.

                       By:    /s/
                              ------------------
                       Its:   ------------------


                       ENVIRONMENTAL VENTURE FUND

                       By:    /s/
                              ------------------
                       Its:   ------------------


                                       56


                               /s/
                              -----------------
                       M. B. LINGAFELTER


                       SEELEY, SAVIDGE & AUSSEM

                       By:    /s/
                              ------------------
                       Its:   ------------------


                             /s/
                       -------------------
                       G. ROEBUCK


                             /s/
                       ------------------
                       JOHN PACEY


                             /s/
                       ------------------
                       GENE OSTROW


                             /s/
                       ------------------
                       BARRY ROGERS


                            /s/
                       ------------------
                       ALAN GREEN


                            /s/
                       ------------------
                       GORDON NEUFELD


                            /s/
                       ------------------
                       DONALD HERSHMAN


                            /s/
                       ----------------
                       DONALD JOHNSON


                            /s/
                       -----------------
                       DENNIS HINDERER
                            /s/


                            /s/
                       ----------------
                       MICHAEL ROGOZINSKI


                                       57


                            /s/
                       -------------------
                       RANDALL W. CHAPMAN


                            /s/
                       -------------------
                       HARRY ZERNECHEL


                            /s/
                       -------------------
                       LOUIS KALANI


                            /s/
                       -------------------
                       RANDY MASUKAWA


                            /s/
                       -------------------
                       STEVAN J. INGWERSEN


                            /s/
                       -------------------
                       MICHAEL C. MAURER


                            /s/
                       ----------------------
                       ELIZABETH L. WILLIAMS


                       MANAGEMENT STAKEHOLDERS


                            /s/
                       ---------------------
                       MARK H. SHIPPS


                            /s/
                       ---------------------
                       ANTHONY A. ALEXANDER


                                       58


                            /s/
                       ---------------------
                       JAMES HELMICK


                            /s/
                       -----------------------
                       RAYMOND J. NARDELLI


                           /s/
                       -----------------------
                       STEPHEN LINGAFELTER


                                       59



EXHIBIT A.
Schedule of Selling Stakeholders Receiving Cash


                                                                    Preferred Stock
                                                      -----------------------------------------
                          State of                                                                Options    Options
MANAGEMENT                Residence       Common     Series A   Series B-1  Series B-2  Series C  $ 0.50     $ 0.75 
- ----------                ---------       ------     --------   ----------   ---------  --------  ------     ------
                                                                                      
Mark H. Shipps            Ohio            10,000                                                      -           -
Anthony A. Alexander      Ohio                 -                                                      -           -
James Helmick             Ohio                 -                                                  3,190           -
Raymond J. Nardelli       Ohio                 -                                                      -           -
Elizabeth L. Williams     Ohio                 -                                                  6,313       2,500
Michael C. Maurer         Ohio                 -                                                  2,000       2,500
Stevan J. Ingwersen       Iowa                 -                                                  6,250           -
Randy Masukawa            California           -                                                 10,000           -
Louis Kalani              Ohio                 -                                                  2,813       2,000
Stephen Lingafelter       Ohio                 -                                                      -           -
Harry Zernechel           Ohio                 -                                                  6,751       2,000
Randall W. Chapman        Ohio                 -                                                      -       3,190
Michael Rogozinski        Ohio                 -                                                      -       3,500
Dennis Hinderer           Ohio                 -                                                      -       1,750
Don Johnson               Ohio                 -                                                      -       1,750
Don Hershman              Pennsylvania         -                                                      -       1,000
Gordon Neufeld            Ohio                 -                                                      -       2,000
Aman Green                Ohio                 -                                                      -       1,000
Barry Rogers              New York             -                                                      -       5,000

DIRECTORS

John Pacey                California           -            -          -          -          -    5,000           -
Gene Ostrow               Massachusetts        -            -          -          -          -    5,000           -

INVESTMENT FUNDS

Summit Ventures II, L.P.  Massachusetts        -      364,507     99,267     99,267    210,151        -           -
Summit Ventures, L.P.     Massachusetts        -      364,507     99,267     99,267    210,151        -           -
Environmental Venture
Fund                      Illinois             -      302,225     82,304     82,304    174,296        -           -
SV Eurofund C.V.          Massachusetts        -      243,005     66,179     66,179    139,912        -           -
McDonald & Co.            Ohio                 -       75,556     20,576     20,576          -        -           -
Summit Investors, L.P.    Massachusetts                10,200      2,777      2,777      6,231        -           -

INVESTORS

M.B. Lingafelter          Ohio            42,000            -          -          -          -        -           -
Seeley, Savidge & Aussem  Ohio            27,000            -          -          -          -        -           -
G. Roebuck                Ohio             1,000            -          -          -          -        -           -


TOTAL                                     80,000    1,360,000    370,370    370,370    740,741   47,317      28,190
                                          ======    =========    =======    =======    =======   ======      ======



                                       60



EXHIBIT A (continued).
Schedule of Selling Stakeholders Receiving Cash

                                                     Gross Proceeds                   Total Compensation
                                                    by Security Type                        in Cash
                                         ---------------------------------- ----------------------------------
                          State of            Common or
MANAGEMENT                Residence           Preferred         Options            Gross        Net of Expenses
- --------------------------------------------------------------------------------------------------------------
                                                                                       
Mark H. Shipps            Ohio                $33,088.39            $0.00        $33,088.39       $31,676.61
Anthony A. Alexander      Ohio                      -                -                 -                -
James Helmick             Ohio                      -           10,555.20         10,555.20        10,104.84
Raymond J. Nardelli       Ohio                      -                -                 -                -
Elizabeth L. Williams     Ohio                      -           24,557.91         24,557.91        23,510.10
Michael C. Maurer         Ohio                      -           12,539.50         12,539.50        12,004.48
Stevan J. Ingwersen       Iowa                      -           17,415.97         17,415.97        16,672.88
Randy Masukawa            California                -           27,865.55         27,865.55        26,676.01
Louis Kalani              Ohio                      -           13,411.69         13,411.69        12,839.45
Stephen Lingafelter       Ohio                      -                -                 -                -
Harry Zernechel           Ohio                      -           24,385.14         24,385.14        23,344.70
Randall W. Chapman        Ohio                      -           10,555.20         10,555.20        10,104.84
Michael Rogozinski        Ohio                      -            9,752.94          9,752.94         9,336.81
Dennis Hinderer           Ohio                      -            4,876.47          4,876.47         4,668.41
Don Johnson               Ohio                      -            4,875.47          4,876.47         4,668.41
Don Hershman              Pennsylvania              -            2,786.55          2,786.55         2,667.66
Gordon Neufeld            Ohio                      -            5,573.11          5,573.11         5,335.32
Aman Green                Ohio                      -            2,786.55          2,786.55         2,667.66
Barry Rogers              New York                  -           13,932.77         13,932.77        13,338.31
                                              $33,088.39      $185,871.03       $218,959.42      $209,617.10
DIRECTORS

John Pacey                California               $0.00       $13,932.77        $13,932.77       $13,338.31
Gene Ostrow               Massachusetts             -           13,932.77         13,932.77        13,338.31
                                                   $0.00       $27,865.55        $27,865.55       $26,676.61
INVESTMENT FUNDS

Summit Ventures II, L.P.  Massachusetts    $3,610,042.27            $0.00     $3,610,042.27    $3,456,012.98
Summit Ventures, L.P.     Massachusetts     3,610,042.27             -         3,610,042.27     3,456,012.98
Environmental Venture
Fund                      Illinois          2,993,438.62             -         2,993,438.62     2,865,717.89
SV Eurofund C.V.          Massachusetts     2,405,824.86             -         2,405,824.86     2,303,175.78
McDonald & Co.            Ohio                544,910.98             -           544,910.98       521,661.32
Summit Investors, L.P.    Massachusetts       102,648.22             -           102,648.22        98,268.54
                                          $13,266,907.23            $0.00     $13,266,907.23  $12,700,849.48
INVESTORS

M.B. Lingafelter          Ohio               $138,971.25            $0.00       $138,971.25      $133,041.78
Seeley, Savidge & Aussem  Ohio                 89,338.66             -            89,338.66        85,526.86
G. Roebuck                Ohio                  3,308.84             -             3,308.84         3,167.66
                                             $231,618.75            $0.00                        $221,736.29
                                                                            $231,618.75

TOTAL                                     $13,531,614.36      $213,736.58    $13,745,350.94   $13,158,879.49
                                          ==============      ===========    ==============   ==============




                                       61



EXHIBIT B.
Schedule of Management Stakeholders Receiving Note

                                                                       
                                                                              
                                                         Preferred
                         State of                          Stock      Options    Options
MANAGEMENT               Residence             Common    All Series    $0.50      $0.75     
- ----------               ---------             ------    ----------  --------    -------    
                                                                              
Mark H. Shipps             Ohio                  --                  323,125       60,000
Anthony A. Alexander       Ohio                20,000                 66,875       20,000
James Helmick              Ohio                  --                    2,310       20,000
Raymond J. Nardelli        Ohio                28,000                 24,219       20,000
Elizabeth L. Williams      Ohio                  --                     --           --   
Michael C. Maurer          Ohio                  --                     --           --   
Stevan J. Ingwersen        Iowa                  --                     --           --   
Randy Masukawa             California            --                     --           --   
Louis Kalani               Ohio                  --                     --           --   
Stephen Lingafelter        Ohio                39,000                  4,355         --   
Harry Zernechel            Ohio                  --                     --           --   
Randall W. Chapman         Ohio                  --                     --         11,810
Michael Rogozinski         Ohio                  --                     --           --   
Dennis Hinderer            Ohio                  --                     --           --   
Don Johnson                Ohio                  --                     --           --   
Don Hershman               Pennsylvania          --                     --           --   
Gordon Neufeld             Ohio                  --                     --           --   
Aman Green                 Ohio                  --                     --           --   
Barry Rogers               New York              --                     --           --   

DIRECTORS

John Pacey                 California            --        --           --           --   
Gene Ostrow                Massachusetts         --        --           --           --   

INVESTMENT FUNDS

Summit Ventures II, L.P.   Massachusetts         --        --           --           --   
Summit Ventures, L.P.      Massachusetts         --        --           --           --   
Environmental Venture
Fund                       Illinois              --        --           --           --   
SV Eurofund C.V            Massachusetts         --        --           --           --   
McDonald & Co.             Ohio                  --        --           --           --   
Summit Investors, L.P.     Massachusetts         --        --           --   

INVESTORS

M.B. Lingafelter           Ohio                  --        --           --           --   
Seeley, Savidge & Aussem   Ohio                  --        --           --           --   
G. Roebuck                 Ohio                  --        --           --           --   


TOTAL                                          87,000      --         420,884      131,810
                                               =======   =======      =======      =======      
                                                      




                                       62



EXHIBIT B (continued).
Schedule of Management Stakeholders Receiving Note

                                                        Gross Proceeds                  Total Compensation
                                                       by Security Type                      in Note
                                                   -------------------------          ---------------------
                                         
                         State of        
MANAGEMENT               Residence               Common            Options           Gross      Net of Expenses
- ----------               ---------               --------          -------           ------     ---------------
                                                                                 
Mark H. Shipps            Ohio                       $0.00     $1,067,598.88   $1,067,598.88   $1,022,047.75
Anthony A. Alexander      Ohio                   66,176.78        242,081.96      308,258.75      295,106.30
James Helmick             Ohio                     --              65,501.95       60,501.95       57,920.52
Raymond J. Nardelli       Ohio                   92,647.50        123,218.67      215,866.17      206,655.83
Elizabeth L. Williams     Ohio                     --                 --              --              --
Michael C. Maurer         Ohio                     --                 --              --              --
Stevan J. Ingwersen       Iowa                     --                 --              --              --
Randy Masukawa            California               --                 --              --              --
Louis Kalani              Ohio                     --                 --              --              --
Stephen Lingafelter       Ohio                  129,044.73         12,135.45      141,180.18      135,156.46
Harry Zernechel           Ohio                     --                 --              --              --
Randall W. Chapman        Ohio                     --              31,243.13       31,243.13       29,910.08
Michael Rogozinski        Ohio                     --                 --              --              --
Dennis Hinderer           Ohio                     --                 --              --              --
Don Johnson               Ohio                     --                 --              --              --
Don Hershman              Pennsylvania             --                 --              --              --
Gordon Neufeld            Ohio                     --                 --              --              --
Aman Green                Ohio                     --                 --              --              --
Barry Rogers              New York                 --                 --              --              --
                                               $287,869.01     $1,536,780.04    1,824,649.06   $1,746,796.94
DIRECTORS

John Pacey                California                 $0.00            $0.00           $0.00            $0.00
Gene Ostrow               Massachusetts            --                 --              --              --
                                                     $0.00            $0.00           $0.00            $0.00
INVESTMENT FUNDS

Summit Ventures II, L.P.  Massachusetts              $0.00            $0.00           $0.00            $0.00
Summit Ventures, L.P.     Massachusetts            --                 --              --              --
Environmental Venture
Fund                      Illinois                 --                 --              --              --
SV Eurofund C.V           Massachusetts            --                 --              --              --
McDonald & Co.            Ohio                     --                 --              --              --
Summit Investors, L.P.    Massachusetts            --                 --              --              --
                                                     $0.00            $0.00           $0.00            $0.00
INVESTORS

M.B. Lingafelter          Ohio                       $0.00            $0.00           $0.00            $0.00
Seeley, Savidge & Aussem  Ohio                     --                 --              --              --
G. Roebuck                Ohio                     --                 --              --              --
                                                     $0.00            $0.00           $0.00            $0.00

TOTAL                                          $287,869.01    $1,536,780.04   $1,824,649.06    $1,746,796.94
                                               ===========    =============   =============    =============




                                       63