EMCON
10-K, 1998-03-30
ENGINEERING SERVICES
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                UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    FORM 10-K


(Mark  One)  

[X]  ANNUAL  REPORT  PURSUANT  TO  SECTION  13 OR 15(d) OF THE SECURITIES  
     EXCHANGE  ACT OF 1934  [FEE  REQUIRED]  

     For the  fiscal  year  ended December 31, 1997 

                                       OR

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
    EXCHANGE ACT OF 1934

                         Commission file number 0-16225
                                      EMCON
             (Exact name of Registrant as specified in its charter)

California                                                 94-1738964
(State or other jurisdiction of                          (I.R.S. Employer
incorporation of organization)                          Identification No.)

400 South El Camino Real
Suite 1200
San Mateo, California                                        94402
(Address, of principal executive offices)                 (Zip Code)

Registrant's telephone number, including area code (650) 375-1522

Securities registered pursuant to Section 12(b) of the Act:
                                                      Name of each exchange
         Title of each class                          on which registered
         -------------------                          ---------------------
             None                                            None

Securities registered pursuant to Section 12(g) of the Act:

                                  Common Stock
                                (Title of Class)

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
Registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes X No ____

                                       1

<PAGE>


Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

The  aggregate  market  value  of the  voting  stock of the  Registrant  held by
non-affiliates of the Registrant, based on the closing price of the Registrant's
Common  Stock as quoted  by the  National  Association  of  Securities  Dealers'
Automated  Quotation  System on February 28,  1998,  was  $24,794,995  Shares of
Common Stock held by each officer and director and by each person who owns 5% or
more of the outstanding Common Stock have been excluded in that such persons may
be  deemed to be  affiliates.  This  determination  of  affiliate  status is not
necessarily a conclusive determination for other purposes.

The number of shares of the Registrant's Common Stock outstanding as of February
28, 1998, was 8,574,839.

                       DOCUMENTS INCORPORATED BY REFERENCE

Parts of the  Registrant's  definitive  proxy  statement  to be  filed  with the
Commission within 120 days of the end of Registrant's fiscal year ended December
31, 1997 are incorporated by reference in Part III of this Form 10-K.

The Index to Exhibits appears on Page 44 of this Report. This Report,  including
all exhibits and attachments, contains 91 pages.


                                       2
<PAGE>



                                TABLE OF CONTENTS

PART I                                                                   PAGE
  Item   1:    Business  ...............................................   4

  Item   2:    Properties...............................................   9

  Item   3:    Legal Proceedings........................................  10

  Item   4:    Submission of Matters to a Vote of Security Holders......  10

PART II
  Item   5:    Market for the Registrant's Common Equity and Related 
                 Stockholder Matters....................................  11

  Item   6:    Selected Financial Data..................................  12

  Item   7:    Management's Discussion and Analysis of Financial 
               Condition and Results of Operations......................  13

  Item   8:    Financial Statements and Supplementary Data..............  18

  Item   9:    Changes in and Disagreements with Accountants on 
               Accounting and Financial Disclosure......................  40

PART III
  Item 10:     Directors and Executive Officers of the Registrant.......  40

   Item 11:    Executive Compensation...................................  40

   Item 12:    Security Ownership of Certain Beneficial Owners and
                 Management.............................................  40

   Item 13:    Certain Relationships and Related Transactions...........  40 

PART IV
    Item 14:   Exhibits, Financial Statement Schedules, and Reports 
                 on Form 8-K............................................  41

               Signatures...............................................  42

                                       3
<PAGE>


                                     PART I

Item 1.       Business

EMCON (referred to herein as "EMCON" and the "Company")  provides  comprehensive
environmental engineering, design, construction, operations and maintenance, and
equipment fabrication services to a variety of public and private industrial and
solid waste clients.  The Company is comprised of two divisions -- the Operation
and Construction  Division (EOC) and the Professional Services Division (PSD) --
and services three key service lines: Solid Waste, Site Restoration and Facility
Services.

EMCON is a leader  in the  design,  construction  and  remediation  of solid and
hazardous waste facilities,  having participated in the design, construction and
remediation of several hundred transfer,  storage and disposal facilities in the
United  States,  as well as  Argentina,  Canada,  Hong Kong,  India,  Indonesia,
Israel,  Kuwait,  Malaysia,  Russia,  Saudi Arabia,  Mexico, Peru and Venezuela.
EMCON's waste facility services include site selection and evaluation,  facility
design,  development  of  preprocessing  and  operating  plants,  assistance  in
regulatory  compliance  and  permitting,  final  closure,  end-use  planning and
design,  construction,  and operations and maintenance.  The Company's  services
also include the development of programs dealing with environmental  assessments
and  remediation of contaminated  sites, as well as services  related to applied
sciences such as fuel spill damage assessment,  marine  fate-and-effect  studies
and  natural  resource  damage  assessment.  The  Company's  professional  staff
includes chemical, civil, geotechnical, mechanical, electrical and environmental
engineers; marine and terrestrial biologists;  oceanographers; plant ecologists;
chemists;   geologists;   hydrogeologists;   hydrologists   and   toxicologists.
References  to the  Company  and  EMCON in this  report  include  the  Company's
subsidiaries, unless the context indicates otherwise.

During  the  first  quarter  of  1997,  the  Company  completed  the sale of its
laboratory  subsidiary,  Columbia  Analytical  Services,  Inc.  ("CAS"),  to the
employees of CAS for $4,000,000 in cash,  CAS'  promissory  notes for $3,219,000
(the "CAS Notes") and a  continuing  preferred  stock  interest in CAS valued at
$500,000.  The  Company  paid to CAS  $206,000  in  cash  for  retired  employee
contracts  and for  accelerated  vesting of stock  options  and other non vested
stock rights. The principal balance of the CAS Notes are potentially  subject to
adjustment  based upon the Company's  ability to continue to provide  analytical
laboratory work to CAS.

Effective May 1, 1997,  Organic Waste  Technology,  Inc.  (OWT),  a wholly-owned
subsidiary of EMCON, acquired all of the outstanding equity interest in National
Earth  Products,  Inc.  (NEP),  a  Lancaster,  Pennsylvania-based  company  with
significant   expertise  in  landfill  civil   construction  and  related  soils
processing.  NEP was  acquired  for $933,000 in cash and the issuance of EMCON's
convertible  promissory  notes in the  aggregate  principal  amount of $800,000.
Approximately  50% of the  convertible  notes are due on May 1,  2000,  with the
balance due on May 1, 2002.  The  indebtedness  bears interest at the rate of 8%
per annum and is  convertible  into EMCON Common Stock at a conversion  price of
$6.50 per share.  The transaction was accounted for as a purchase.  Specifically
identifiable   intangible  assets  and  goodwill  of  approximately   $1,476,000
resulting from this acquisition are included in goodwill and are being amortized
over twenty-five years using the straight line method.  Accumulated amortization
as of December 31, 1997 was approximately $39,000.  Additional consideration may
be paid for the purchase of NEP subject to the  achievement  of certain earn out
goals over the next three years.  This acquisition would not have had a material
effect on net revenue, net income, or income per share, had it been effective at
January 1, 1997.

                                       4
<PAGE>

On March  6,  1997,  the  Company  completed  the  sale of its  Marina  landfill
gas-to-energy  project for a net up front cash payment of $944,000.  The Company
earned an  additional  $200,000 at year end as a result of the  satisfaction  of
certain post-closing contingencies.

                                    Services

The Company is comprised of two operating divisions:  the Professional  Services
Division (PSD);  and the Operations and Construction  Division (EOC).  These two
divisions work in concert to address the needs of the Company's clients in three
key service lines:  Solid Waste, Site Restoration and Facility  Services.  Solid
Waste Services

The Company's  Professional  Services  Division and Operations and  Construction
Division  offer a full range of services  to  operators  of solid and  hazardous
waste transfer,  storage,  recycling, and disposal facilities;  from the design,
permitting and  construction  of the facility,  to the  fabrication of necessary
equipment and components,  to post-closure,  operations and maintenance services
and end-use  planning.  Customers may utilize the full range or a portion of the
Company's services.

Through its extensive  experience in the solid waste  industry,  the Company has
developed  expertise in several  critical areas of waste  disposal  technology -
landfill cells and related  infrastructure,  liner systems,  leachate treatment,
and gas control/recovery systems. To protect surrounding soil and water, natural
and  synthetic  liners are used to collect  and  contain  potentially  hazardous
liquids  percolating  through  the waste  that have been  deposited  at the site
("leachate").  Leachate is then collected on the surface of the liner, withdrawn
from the landfill  and treated  using  physical,  chemical,  evaporative  and/or
biological methods. Gas control and recovery systems,  which may be installed on
active or closed  landfills,  are used to control the  methane  gas  produced by
decomposing organic refuse.  Where economical,  recovery systems are designed to
extract  methane  to  generate  heat  and/or  electricity,  or in some  cases to
evaporate leachate using the Company's patented leachate evaporation technology.
Federal  regulation now requires that all new land disposal  facilities  utilize
liners and methane control  systems,  and that these systems be required to meet
increasingly stringent design standards.

EMCON's  services to its solid waste clients often begin with the  evaluation of
potential disposal facility sites. The hydrogeological and geotechnical staff of
the Professional  Services Division evaluate soils,  groundwater  occurrence and
quality,  seismic stability and potential flooding at possible locations,  while
other professionals analyze operational  considerations,  such as proximity of a
site  to  water  sources,  visibility  to the  public  and  estimated  operating
expenses. Once desirable sites are identified,  the Company assists in obtaining
regulatory  approvals  by  drafting  environmental  impact  reports  and  permit
applications, appearing at hearings and negotiating with government agencies.

EMCON performs detailed cost/benefit analyses of design alternatives,  using, if
possible,  natural  features of the site to reduce cost.  EMCON engineers design
the waste disposal facility, considering such factors as the volume and types of
material  to be  disposed  at the site,  land use and  public  policy,  physical
characteristics  of the site and regulatory  requirements.  EMCON identifies the
type of natural or synthetic  liners which are  appropriate  or required for the
site and designs  the  monitoring  systems,  landfill  gas  control  systems and
leachate  recovery and  treatment  systems.  EMCON also  monitors  statutory and
regulatory  developments,  and assists operators in implementing required design
or  operating  changes  and  preparing   additional   permit   applications  and
environmental reports.
                                       5
<PAGE>

Throughout the construction process, the Professional Services Division performs
services  such  as  preparing  detailed  construction  documents,  assisting  in
contractor  selection,  scheduling and monitoring  work in progress,  performing
construction quality assurance review, review of contractor requests for payment
and assisting with regulatory compliance and permitting. The Company also trains
disposal facility personnel,  performs  environmental  monitoring services,  and
designs site maintenance programs and operating plans.

Where appropriate,  the Operations and Construction Division can perform a broad
range of related services,  including  construction of landfill cells,  landfill
remediation and collection systems, landfill gas flares and control systems, and
leachate  evaporation systems, as well as the capping,  closure,  development of
landfill gas recovery projects,  and long-term  operation and maintenance of old
landfills.  The  Company is also  seeing  more  opportunities  to provide  fully
integrated  design  --  build  projects,  utilizing  the  combined  solid  waste
expertise of PSD and EOC.

The Operations and  Construction  Division is complimented  by ET  Environmental
Corporation  ("ET"),  a  50/50  joint  venture  between  EMCON  and  The  Turner
Construction   Company   ("Turner").   ET's  charter  is  to  provide  primarily
above-ground  environmental,  remedial and  construction  services on a national
basis,  utilizing the regional  resources of EMCON and Turner. ET is a leader in
the development and construction of solid waste transfer  stations and materials
recovery facilities on a design build basis.

                            Site Restoration Services

EMCON's  environmental  expertise  incorporates  analytical and  risk-assessment
capabilities enabling remediation  specialists to design site-specific solutions
to environmental  compliance and  contamination  problems.  The Company is often
called upon to design and monitor  remediation  plans when corrective  action is
required  at solid or  hazardous  waste  storage or disposal  facilities  and at
commercial or industrial  plant sites.  Problems  which may require  remediation
include  leaching of  hazardous  chemicals  or wastes into  groundwater,  ground
instability  or erosion,  flooding and migration of landfill gas. Work generally
entails  site  reconnaissance,   drilling  exploratory  borings,  and  soil  and
groundwater sampling as part of the assessment program.  Using data collected in
the  assessment  phase of a project,  the  Company  then  defines the nature and
extent  of  the  problem,  develops  a  remediation  program  and  monitors  its
implementation.

The Company  generally  approaches site restoration  projects by consulting with
the client on the nature and scope of the problem.  Historical information about
the site,  if available,  is reviewed to determine  the most likely  sources and
locations of contamination. Information about the local geology and hydrogeology
is also reviewed to determine potential migration pathways. A detailed work plan
is then prepared that describes the field investigation program to be conducted,
including  the number and location of samples to be  collected  and the specific
chemical  analyses to be  performed.  Trained  personnel  then conduct the field
investigation  program,  which may include  drilling  soil  borings,  installing
groundwater  monitoring  wells,  and  collecting  samples of soil,  groundwater,
surface water and/or industrial discharges.

Following laboratory analysis of the various samples collected,  the results are
evaluated by Company engineers and scientists to determine the nature and extent
of contamination at the site.  Depending on the complexity of the site, this may
require more than one round of sampling. Site cleanup levels are then determined
based on the media that have been impacted,  the  contaminants  of concern,  the
intended use of the property, and state and federal regulations. In consultation
with the  client,  various  remediation  alternatives  are then  identified  and

                                       6

<PAGE>

evaluated for  implementability,  effectiveness,  permanence and cost.  Remedial
alternatives  at a site may include the excavation and removal of the sources of
contamination  and  contaminated  soil, the removal and treatment of groundwater
using physical and chemical  treatment  systems,  or the installation of surface
caps and vertical hydraulic barriers.  EMCON also applies in-situ  technologies,
such  as  vapor  extraction  or  bioremediation  as  appropriate,  to  remediate
contaminated  soils  and  groundwater  as a means to  reduce  cost and  minimize
disturbance. To assure continued compliance during and after remediation,  EMCON
designs  and  provides   operations  and   maintenance   programs  for  affected
facilities.

Through its ET joint venture with Turner,  the Company is also able to provide a
complete turnkey package to clients,  combining  planning and  implementation of
facility/plant   decommissioning;    remediation   of   soil   and   groundwater
contamination, and lead based paint and asbestos abatement.

                                Facility Services

In the last several years the market has seen a significant  trend among many of
the  larger  industrial  clients  to  outsourcing  many of their  environmental,
regulatory,  and  health  and  safety  compliance  requirements.   EMCON  offers
responsive  assistance  to the  regulated  community  in a broad  range of areas
including air quality  regulatory  compliance  through  provision of air quality
assessment and engineering services. Company personnel have direct experience in
air  quality  permitting  under  the New  Source  Review  (NSR),  Prevention  of
Significant  Deterioration  (PSD) and added requirements under the Clean Air Act
Amendments of 1990,  preparing emission  inventories (for criteria and toxic air
pollutants),   performing  risk  assessment  to  evaluate  potential  human  and
ecological risk, evaluating emission control technologies (BACT/RACT/LAER/MACT),
dispersion  modeling,  ambient  air  quality  and  meteorological  measurements,
pollution prevention and waste minimization,  indoor air, litigation support and
expert  testimony,  and compliance  audits.  EMCON's air quality staff are fully
integrated  with  staff in  other  environmental  disciplines  to  provide  cost
effective  evaluations  and  compliance  solutions to  situations  which involve
multiple media contamination.

                              Clients and Marketing

EMCON's  principal clients are industrial  concerns,  predominantly in the solid
waste,  petroleum,  wood products,  aerospace,  power generation,  chemicals and
manufacturing  industries.  The Company  also  provides  services to  utilities,
non-regulatory  government  entities,  and financial  institutions.  The Company
often enters into master service agreements with major clients,  which set forth
the general  terms and  conditions  under which EMCON will perform  services and
which facilitate repeated use of the Company's services.

EMCON focuses significant efforts on providing high quality services in a timely
manner and developing long-term relationships with its clients. EMCON assigns an
experienced project manager to each project to coordinate work undertaken by the
numerous  professionals  from  different  disciplines  within the Company.  This
approach  reduces the time and cost  required to complete a project and relieves
the client of the  responsibility  of  coordinating  the efforts of  independent
consultants.  Because  the  Company  provides a broad  range of  services,  work
performed  for a  client  in one  technical  area  often  leads to work in other
technical areas.

In the last  several  years,  an  increasing  amount  of work has been done on a
competitive  bid basis in response to client  requests for  proposals.  This has
required the dedication of significantly  greater  resources to proposal writing
and  general  business  development,  and the  implementation  of a more  formal
marketing program to share leads and coordinate resources nationwide.

                                       7

<PAGE>

To further  promote its  services,  the Company takes an active role in industry
trade associations to enhance its national  reputation for technical  expertise.
Similarly, EMCON provides services to a wide variety of local, state and federal
government  agencies and  contractors.  Participation  in such contracts  allows
EMCON to remain on the leading  edge of new  technological  developments  and to
publicize its expertise.
                                   Regulation

Public  concern over health,  safety and  preservation  of the  environment  has
resulted in the enactment of a broad range of environmental laws and regulations
by  local,  state  and  federal  lawmakers  and  agencies.  These  laws  and the
implementing  regulations affect nearly every industry,  as well as the agencies
of  federal,  state  and  local  governments  charged  with  their  enforcement.
Recently,   the  level  of  enforcement  has  waned  given  governmental  budget
constraints and a number of environmental laws set for renewal have been allowed
to lapse.  Nonetheless,  those laws and regulations still in force will continue
to  stimulate  demand  for the kinds of  services  offered  by EMCON.  They also
subject the Company to stringent regulation in the conduct of its operations.

                        Potential Liability and Insurance

The Company's work involves assisting clients in handling, storing and disposing
of  hazardous  materials,  toxic  wastes  and other  pollutants,  as well as the
remediation  of existing  contamination.  The Company  therefore is exposed to a
significant risk of professional liability for environmental damage and personal
injury.

EMCON maintains health and safety and quality assurance/quality control programs
to  reduce  the  risk of  potential  damage  to  persons  and  property  and the
associated   potential  liability.   In  addition,   EMCON  currently  maintains
professional  liability  insurance  (covering  damages  resulting from negligent
acts,  errors,  mistakes  or  omissions  in  rendering  or failing to render its
professional  services)  as  well  as  commercial  general  liability  insurance
(covering bodily injury and property damage).

EMCON endeavors contractually to limit its potential liability to the amount and
terms of its  insurance  policies,  and to be  indemnified  by its clients  from
potential liability to third parties. However, the Company is not always able to
obtain such  limitations on liability or  indemnification,  and such provisions,
when  obtained,   may  not  adequately   shelter  the  Company  from  liability.
Consequently,  a partially or completely  uninsured  claim, if successful and of
sufficient  magnitude,  could have a material  adverse effect on the Company and
its financial condition and results of operations.

Although the  liabilities  arising out of  environmental  laws are more directly
applicable  to the Company's  clients,  such laws could,  under certain  factual
circumstances,  apply to some of the  activities  pursued by the  Company in the
course of business,  including failure to properly design a cleanup,  removal or
remedial  action  plan or failure  to  achieve  required  cleanup  standards  in
compliance  with  such laws and  standards.  Such  liabilities  can be joint and
several where other parties are involved. Because much of the Company's business
is  generated  either  directly or  indirectly  as a result of federal and state
governmental   programs  and  regulations,   changes  in  governmental  policies
affecting such programs, or regulations or administrative  actions affecting the
funding or sponsorship of such programs, could have a material adverse effect on
the Company's business. See Item 3 - Legal Proceedings.

                                       8
<PAGE>
                                   Competition

EMCON competes  directly with a wide variety of national and local  engineering,
consulting,  construction,  equipment,  and operations and maintenance companies
which offer services similar to those provided by the Company.  However, many of
these  competitors  are only  engaged  in  certain  segments  of the  applicable
industry and do not provide the broad range of services provided by the Company.
In addition,  the Company competes  indirectly with remediation  companies which
offer   environmental   consulting  and   engineering   services,   as  well  as
transportation,  storage or  disposal  capabilities  generally  not  provided by
EMCON.  The  Company  believes  that the  principal  competitive  factors in its
industry are price, reputation, technical proficiency, management experience and
breadth of services  offered.  The industry has also  experienced  a significant
amount of consolidation activity.  Management anticipates that these trends will
continue for the foreseeable future.

                                    Employees

As of December 31, 1997,  the Company had a total of 972  employees,  including:
520 professionals;  144 technical personnel;  and 308 administrative and support
personnel.   The  Company's   professional  staff  includes   chemical,   civil,
geotechnical,  mechanical,  electrical and environmental  engineers;  marine and
terrestrial biologists;  oceanographers; plant ecologists; chemists; geologists;
hydrogeologists;  hydrologists  and  toxicologists.  The  Company's  ability  to
attract and retain qualified engineers, scientists and other professionals is an
important factor in determining its future success. EMCON's employees have never
been  represented  by a union,  and the Company  believes its relations with its
employees are good.

                                   Seasonality

EMCON's business has experienced an increase in seasonality in recent years, due
in part to the increase in on-site  investigation,  construction and other field
work.  Consequently,  the  financial  results in its  second and third  quarters
(ending June 30 and  September 30,  respectively)  tend to be stronger than such
results in its first and fourth quarters.

                                     Backlog

The Company  estimates  that at  December  31,  1997,  the backlog of future net
revenue from contracts in existence and orders believed to be firm was in excess
of $75 million,  all of which is expected to be received  within the next twelve
months,  compared to $80 million  backlog  (including CAS) at December 31, 1996.
However,  there can be no  assurance  that this  work will not be  postponed  or
canceled.  Furthermore, a substantial portion of the Company's work is performed
pursuant to agreements by which the Company is compensated for time and expenses
devoted to projects with indefinite lives.

Item 2.       Properties

The  Company's  corporate  office,  located in San Mateo,  California,  occupies
approximately  3,000 square feet and is leased through July, 2001. The Company's
accounting center,  located in Sacramento,  California,  occupies  approximately
4,000 square feet and is leased through December 31, 2000.

                                       9

<PAGE>

The  Company  owns 4.4 acres of real  property in Kelso,  Washington,  including
37,000  square  feet of office and  analytical  lab space.  The  facilities  are
currently  leased to CAS under a long term lease  expiring  April 3,  2007.  The
Company owns a 4.9 acre piece of property in New Concord, Ohio, including 25,000
square feet of office and equipment fabrication facilities.

The  Company  leases  office  and  warehouse  space in a total of 50  facilities
located in Alaska, Arizona, California, Connecticut, Florida, Georgia, Illinois,
Maine,   Massachusetts,   Michigan,   New  Jersey,   New  York,  Ohio,   Oregon,
Pennsylvania,  Puerto Rico, Texas, Vermont, Virginia and Washington under leases
expiring  at various  times  through  December  2002.  These  facilities  have a
combined area of approximately 337,000 square feet.

Item 3.       Legal Proceedings

As a firm  engaged in  environmental-related  matters,  the  Company  encounters
potential liability,  including claims for significant  environmental damage, in
the normal course of business.  The Company is party to lawsuits and is aware of
potential  exposure related to certain claims.  In the opinion of management the
resolution  of all known  lawsuits/claims  at amounts  in excess of  established
reserves  will not have a material  adverse  affect on the  Company's  financial
position, results of operations or cash flows.

Item 4.       Submission of Matters to a Vote of Security Holders

There were no matters  submitted  to a vote of the security  holders  during the
fourth quarter of the fiscal year ended December 31, 1997.

                                       10
<PAGE>


                                     PART II

Item 5.       Market for the Registrant's Common Equity and Related Stockholder 
              Matters

The Company's  common stock is traded on the NASDAQ National Market System under
the symbol MCON. The following  table sets forth the quarterly range of high and
low bid quotations per quarter for 1997 and 1996:

- -------------------------------------------------------------------------------
                                                High              Low
- -------------------------------------------------------------------------------
January 1 - March 31, 1996                     $4.88             $4.00
April 1 - June 30, 1996                         5.13              4.13
July 1 - September 30, 1996                     4.13              3.19
October 1 - December 31, 1996                   4.25              3.50

January 1 - March 31, 1997                      3.75              3.00
April 1 - June 30, 1997                         4.06              2.88
July 1 - September 30, 1997                     5.50              3.13
October 1 - December 31, 1997                   6.88              4.63
- -------------------------------------------------------------------------------

On February 28, 1998,  there were 509  shareholders  of record of the  Company's
common stock.

Although the Company does make annual distributions to a minority shareholder of
one of OWT's  subsidiaries,  the  Company  did not pay cash  dividends  to EMCON
shareholders  in 1997 or 1996 and does  not  plan to pay cash  dividends  to its
shareholders in the near future.  Furthermore,  the payment of cash dividends is
restricted  by the  Company's  bank  line of  credit  arrangement.  The  Company
presently intends to retain earnings for further development of its business.

                                       11
<PAGE>



Item 6.       Selected Financial Data

Five Year Financial Highlights
<TABLE>
<CAPTION>

- -----------------------------------------------------------------------------------------------------------------
                                                                       Years Ended December 31,
                                                -----------------------------------------------------------------
(In thousands, except per share amounts)            1997         1996         1995         1994         1993
- -----------------------------------------------------------------------------------------------------------------
<S>                                                <C>         <C>          <C>          <C>         <C>    
Operations Statement Data (a)
Gross revenue                                     $139,343     $137,626     $122,542     $115,638    $ 98,612
Net revenue                                        109,502      117,705      103,409       95,926      83,062
Direct expenses                                     56,134       52,608       39,473       37,307      32,201
Indirect expenses                                   49,782       65,844       61,498       59,302      47,528
Restructuring/other charges                         (1,612)       8,197         (17)        1,958          --
Loss on disposition of laboratory                      333        3,327           --           --          --
Income (loss) from operations                        4,865      (12,271)       2,455       (2,641)      3,333
Interest income                                        516          317          369          348         313
Interest expense                                     1,251        1,112          181           66          57
Equity in income/(loss) of affiliates                   (2)         227          (74)         (58)         --
Minority interest expense                              810          188           --           --          --
Income (loss) before provision (benefit) for
   income taxes                                      3,318      (13,027)       2,569       (2,417)      3,589
Provision (benefit) for income taxes                 1,161       (2,936)         783         (500)      1,165
Net income (loss)                                    2,157      (10,091)       1,786       (1,917)      2,424
- -----------------------------------------------------------------------------------------------------------------
Per Share Data (a)
Basic earnings (loss) per share                   $   0.25      $ (1.19)    $   0.22      $ (0.24)    $  0.33
Diluted earnings (loss) per share                 $   0.25           --     $   0.21           --     $  0.33
Shares used in computing basic earnings (loss)
   per share                                         8,549        8,485        8,274        7,919       7,296
Shares used in computing diluted earnings
   (loss) per share                                  8,693          --         8,338          --        7,455
- -----------------------------------------------------------------------------------------------------------------
Balance Sheet Data (a)
Total assets                                       $93,075     $ 90,912     $ 78,636     $ 80,989    $ 68,852
Working capital                                     32,583       34,601       36,313       32,582      36,200
Noncurrent obligations and deferred income
   taxes                                            14,177       16,799        1,700        1,348         882
Shareholders' equity                                58,100       55,812       65,306       63,059      58,997
- -----------------------------------------------------------------------------------------------------------------
</TABLE>

(a)      The  Company  was  involved  in  several  acquisitions,   mergers,  and
         divestitures  during the five year period presented.  See Notes 4 and 6
         to the Company's consolidated financial statements.

                                       12
<PAGE>

Item 7.       Management's Discussion and Analysis of Financial Condition
              and Results of Operations

Results of Operations

The following  table sets forth (i) certain items in the Company's  Consolidated
Statements of Operations as a percentage of net revenue and (ii) the  percentage
increase  (decrease)  in the  dollar  amount  of  those  items  for  the  period
indicated.  Net  revenue  is  determined  by  subtracting  the costs of  outside
subcontractor services,  largely drilling contractors and specialized consultant
services,  from gross revenue. Since EMCON's use of subcontractors can vary from
period to period  and the costs of these  services  are passed  directly  to the
Company's  clients,  the Company  believes  that net revenue is a more  accurate
measure of the value of its services.
<TABLE>
<CAPTION>

- --------------------------------------------------------------------------------------------------------------------
                                                          Percentage of                          Percentage
                                                           Net Revenue                       Increase (Decrease)
                                               ---------------------------------         ---------------------------
                                                                                              1997          1996
                                                                                              vs.           vs.
Years Ended December 31,                          1997        1996         1995               1996          1995
- --------------------------------------------------------------------------------------------------------------------
<S>                                               <C>         <C>          <C>              <C>             <C>    
Net revenue                                       100.0%      100.0%       100.0%             (7.0%)         13.8%
Direct expenses                                    51.3%       44.7%        38.2%              6.7%          33.3%
Indirect expenses                                  45.5%       55.9%        59.4%            (24.4%)          7.1%
Restructuring/other charges                        (0.5%)       7.0%          --            (107.1%)            --
Loss on disposition of laboratory                   0.3%        2.8%          --             (90.0%)            --
Gain on disposition of assets                      (1.0%)        --           --                --              --
Income (loss) from operations                       4.4%      (10.4%)        2.4%            139.6%        (599.8%)
Interest income (expense), net                     (0.7%)      (0.7%)        0.2%              7.5%        (522.9%)
Equity in income/(loss) of affiliates               --          0.2%        (0.1%)          (100.9%)            --
Minority interest expense                          (0.7%)      (0.2%)         --            (330.9%)            --
Income (loss) before provision (benefit) for
   income taxes                                     3.0%      (11.1%)        2.5%            125.5%        (607.1%)
Provision (benefit) for income
  taxes                                             1.0%       (2.5%)        0.8%            139.5%         475.0%
Net income (loss)                                   2.0%       (8.6%)        1.7%            121.4%        (665.0%)
- --------------------------------------------------------------------------------------------------------------------
</TABLE>
Net Revenue:

Net revenue for 1997 totaled $109,502,000,  a 7.0% decrease from $117,705,000 in
1996.  The  decrease  was  due in  part  to  the  divestiture  of the  Company's
laboratory subsidiary,  Columbia Analytical Services,  Inc. (CAS), at the end of
the first quarter of 1997 (CAS contributed net revenue of $4,904,000 in 1997 and
$20,505,000 in 1996), as well as lower demand for the Company's  services within
the Company's  Professional Services Division (PSD). The decrease in net revenue
was offset in part by the growth of the Company's  Operations  and  Construction
(EOC)  Division  from  net  revenue  of  $22,167,000  in  1996   (following  the
acquisition of OWT on February 29, 1996) to $41,386,000 in 1997.

Net revenue for 1996  increased  by 13.8% over net  revenue of  $103,409,000  in
1995.  Excluding  net  revenue  of  $20,596,000  contributed  by  Organic  Waste
Technologies,  Inc.  (OWT),  following its acquisition on February 29, 1996, net

                                       13

<PAGE>

revenue in 1996 totaled $97,109,000, a 6.1% decrease from 1995. The decrease was
primarily   attributable  to  significant   underperformance  of  the  Company's
Professional  Services  Division  combined  with a general  decrease  in revenue
following reductions in work force throughout the Professional Services Division
during the year.  The decrease was, to a lesser  extent,  also  attributable  to
particularly  difficult weather  conditions in the Northeast and Northwest areas
during the first quarter of 1996.

Direct Expenses:

Direct expenses include all project related expenses, including compensation for
billable hours for technical and  professional  staff and other project  related
expenses,  as well as direct  labor  and  materials  for  in-house  testing  and
construction  activities.  Direct expenses for 1997 totaled $56,134,000,  a 6.7%
increase compared to direct expenses of $52,608,000 for 1996. Direct expenses as
a percent of net  revenue  increased  to 51.3% in 1997 from  44.7% in 1996.  The
increase  was due in large part to a shift in business  mix  resulting  from the
divestiture  of CAS and the continued  expansion of the EOC  Division,  combined
with higher utilization of professional  staff within the Professional  Services
Division.

Direct  expenses  in  1996  increased  33.3%  over  direct  expenses  in 1995 of
$39,473,000.   Excluding  the  direct  expenses  incurred  by  OWT  in  1996  of
$14,744,000,  direct expenses in 1996 totaled $37,864,000,  a 4.1% decrease from
1995. Excluding the effects of OWT, direct expenses, as a percent of net revenue
in  1996,  increased  to 39.0%  from  38.2% in 1995;  due  largely  to  relative
increases in the cost of labor and materials within the laboratory division.

Indirect Expenses:

Indirect expenses include  compensation for non-billable  hours of professional,
technical and administrative staff, and general administrative  expenses such as
rent, bonuses,  benefits,  insurance,  marketing,  legal fees,  depreciation and
amortization.  Indirect expenses for 1997 totaled $49,782,000,  a 24.4% decrease
compared to indirect  expenses of $65,844,000 for 1996.  Indirect  expenses as a
percent  of net  revenue  decreased  to 45.5% in 1997 from  55.9% for 1996.  The
decrease was due in part to the above-noted  shift in business mix following the
divestiture of CAS, the expansion of the EOC Division and the planned short-term
contraction of the Professional  Services  Division,  combined with the positive
impact of cost containment and restructuring measures put in place at the end of
1996.

Indirect  expenses  in 1996  increased  7.1%  over  1995  indirect  expenses  of
$61,498,000. Excluding indirect expenses of $3,173,000 incurred by OWT, indirect
expenses in 1996 totaled  $62,671,000,  a 1.9% increase over 1995. Excluding the
impact of OWT,  indirect  expenses as a percent of net revenue in 1996 increased
to 64.5%  from 59.4% in 1995;  due in part to the  above-noted  decrease  in net
revenue,  combined with the effect of significant  severance  costs and expenses
related to the closing of several small offices during 1996. In addition, during
the fourth quarter of 1996, the Company  increased  reserves relating to pending
litigation matters by an additional $1,553,000.

Restructuring/Other Charges:

In the  fourth  quarter  of  1996,  senior  management  reviewed  the  Company's
operational and  administrative  functions for the purpose of further  improving
the Company's  competitiveness and overall profitability.  Based on this review,

                                       14

<PAGE>

the  Company's  Board of Directors  approved a strategic  restructuring  plan in
December,  1996 to reposition the Company to fully exploit its core strengths in
engineering,  design,  construction,  operations and maintenance. As a result of
these actions in 1996, the Company  recognized  pre-tax  restructuring and other
charges  of   $1,237,000   and   $6,960,000,   respectively.   Included  in  the
restructuring  charge were  $604,000  relating to the closure or  downsizing  of
several underperforming offices,  $628,000 related to employee severance and the
write-off  of  employment  contracts  for former  employees  no longer  actively
participating  in the  Company's  affairs,  and a $5,000  adjustment to the 1994
restructuring  plan.  Included in other charges were  $4,768,000  related to the
write-down  in the  carrying  value of goodwill  associated  with the  Company's
continuing  operating  units in  accordance  with  the  Statement  of  Financial
Accounting  Standards  No. 121,  "Accounting  for the  Impairment  of Long-Lived
Assets and for Long-Lived Assets to Be Disposed Of",  $1,529,000  related to the
write-off of idle or disposed of assets,  $368,000  related to the write-down of
the Company's  landfill gas  production  rights and related  fixed  assets,  and
$156,000 related to the buyout and cancellation of outstanding  stock options to
purchase  approximately  743,000  shares of the  Company's  common stock held by
employees  of the Company.  Also,  included in other  charges were  $139,000 for
various other operational costs.

As of December 31, 1997,  $328,000 of the 1996  restructuring  charges have been
incurred and $318,000 remains in other accrued  liabilities.  A net reduction of
$586,000 to the reserve was  recorded to reflect  lower than  anticipated  costs
associated with the abandonment and subsequent  sublease of certain office space
and lower than anticipated  severance costs due to retaining certain  previously
identified personnel.

In October,  1994,  as a result of changes in senior  management,  the Company's
Board of Directors  approved a corporate  restructuring  plan that  included the
write-off  of  employment  contracts  with  no  future  value,   termination  of
personnel,  and the  elimination or  abandonment of excess and under  performing
assets and facilities. During the twelve months ended December 31, 1997, $27,000
of cash  charges  related to the 1994  restructuring  were  incurred and charged
against the established reserve, bringing the 1994 reserve to a zero balance. To
date,  $1,169,000 of  restructuring  costs have been incurred with no additional
cost anticipated.

Loss on Disposition of Laboratory:

In December 1996, the Company executed a letter of intent to sell its laboratory
division,  Columbia Analytical Services,  Inc. (CAS), to the employees of CAS by
the first quarter of 1997. In anticipation  of the sale, the Company  recognized
an impairment in its investment in CAS of $3,327,000;  including a write-down in
the carrying value of goodwill associated with previous laboratory  acquisitions
of $1,426,000. For the year ended December 31, 1996, CAS had a loss before taxes
of $142,000.

During the first quarter of 1997,  the Company  completed the sale of CAS to the
employees of CAS for $4,000,000 in cash,  CAS'  promissory  notes for $3,219,000
("CAS  Notes")  and a  continuing  preferred  stock  interest  in CAS  valued at
$500,000.  The  Company  paid  $206,000  in  cash to CAS  for  retired  employee
contracts  and for  accelerated  vesting of stock  options and other  non-vested
stock rights. As a result of several closing adjustments, the Company recognized
an  additional  loss  on  disposition  of CAS in the  first  quarter  of 1997 of
$333,000.  CAS and the Company  also  entered  into a Master  Service  Agreement
relating to the continued  provision of laboratory  services to the Company (the
"MSA").  The CAS Notes are subject to offset,  in certain  circumstances,  based
upon the levels of future  revenues to CAS  accruing  under the MSA. The Company
currently  does not  anticipate  that any  material  offset will occur under the
terms of the MSA.

                                       15
<PAGE>

Gain on Sale of Assets:

During the first quarter of 1997,  the Company  completed the sale of one of its
landfill  gas-to-energy  projects,  including the related  leasehold  production
rights and associated machinery and equipment.  The Company recognized a gain on
disposition of the project of $1,026,000.

Interest Income:

The Company recorded interest income of $516,000 in 1997 compared to $317,000 in
1996 and $369,000 in 1995.  The increase in interest  income in 1997 compared to
1996 and 1995 was primarily due to the recognition of interest income on the CAS
Notes.

Interest Expense:

The  Company  incurred  interest  expense  of  $1,251,000  in 1997  compared  to
$1,112,000 in 1996.  The increase in interest  expense was a due primarily to an
increase in debt by OWT in connection with (i) the acquisition of National Earth
Products,  Inc.  and  (ii)  the  acquisition  and  expansion  of  its  equipment
fabrication  facility.  This was offset by the $3,000,000  prepayment on the OWT
secured term loan.

The increase in interest expense in 1996, compared to 1995, was due primarily to
increases in long-term  debt of  $11,747,000  incurred for purposes of financing
the  acquisition  of OWT in  February  of 1996 and  $5,000,000  for  purposes of
financing the subsequent expansion of OWT's 5.3 megawatt landfill  gas-to-energy
project.

Income Taxes Provision (Benefit):

The  provision  (benefit)  for income taxes in 1997 was  $1,161,000  compared to
($2,936,000)  in 1996 and $783,000 in 1995.  The effective tax rate for 1997 was
35.0%  versus  (22.5%)  in 1996 and  30.5%  for 1995.  The 1996 tax  benefit  is
primarily  due to  the  alternative  minimum  tax  credits  generated  from  the
Company's landfill  gas-to-energy  project and from temporary timing differences
consisting of the restructuring charges,  impairment of assets held for sale and
the increase in the legal reserve.

Included in the Company's  consolidated  balance sheet at December 31, 1997, are
total  current and  long-term  net deferred tax assets of  $5,263,000.  The full
utilization of such assets is dependent  upon a number of factors  including the
Company's ability to generate future profits,  the successful  implementation of
the Company's  restructuring plan and the anticipated  reduction in the level of
new tax credits  generated from the Company's  existing  landfill  gas-to-energy
project.  Based on these  factors,  the Company  believes that it is more likely
than not that the full  benefit of the net  deferred tax assets will be realized
by the Company in due course.

Liquidity and Capital Resources

Working Capital:

Cash  provided  by  operating  activities  for  fiscal  1997,  1996 and 1995 was
$6,189,000,  $1,583,000  and  $5,232,000,  respectively.  The  changes  in  cash
provided  by  operating  activities  in  1997,  1996  and  1995  were  primarily
attributed to changes in the Company's net income (loss),  accounts  receivable,

                                       16

<PAGE>

accounts  payable,  depreciation  and  amortization,  bad debt expense,  gain on
disposition  of assets,  prepaid  expense and other current tax assets and other
accrued  liabilities.  During 1997, the Company's uses of cash for non-operating
activities primarily consisted of repayment of debt in the amount of $5,731,000,
and additions to property and equipment in the amount of  $5,325,000;  comprised
of computers,  field  equipment  and the expansion of its equipment  fabrication
facilities.  This  was  partially  offset  by net  cash  provided  by  operating
activities during 1997 of $6,189,000 and from net cash due to the disposition of
CAS. Cash and cash  equivalents  increased to $6,106,000 in 1997 from $5,331,000
in 1996.

In  conjunction  with  the  acquisition  of  OWT,  the  Company  entered  into a
$20,000,000   secured  credit  agreement  with  its  existing  commercial  bank,
replacing  its  previous  $10,000,000  unsecured  line of credit.  Under the new
agreement,  the  Company  borrowed  $10,000,000  on a term  loan  basis  with an
interest  at a managed  rate not to exceed the prime  rate.  Principal  is to be
amortized  over seven years,  but with any unpaid amount finally due and payable
on June 30,  2001.  The  remaining  $10,000,000  under the Credit  Agreement  is
available  for  working  capital  purposes  (with up to  $5,000,000  also  being
available for non-working capital purposes). The line of credit component of the
Credit Agreement  expires on May 31, 1998. The Company expects to renew the line
of credit component of the Credit Agreement following its expiration. The Credit
Agreement  contains  provisions with respect to the payment of dividends and the
level of capital expenditures and requires the maintenance of specific levels of
working capital,  tangible net worth and continued quarterly  profitability.  In
April 1997,  following  the  infusion of cash upon the  divestiture  of CAS, the
Company  prepaid,  on an accelerated  basis,  $3,000,000 of the then outstanding
principal balance of the secured loan.

Capital Expenditures:

The Company invested  $5,325,000 in 1997 in additions to property and equipment,
mainly computers, field equipment and the expansion of its equipment fabrication
facilities.  The Company is currently  exploring several sources of financing to
fund the anticipated expansion of its leachate evaporation system (LES) business
which is currently being offered on the equivalent of a design,  build,  operate
and finance basis. That  notwithstanding,  the Company believes that its cash on
hand and cash  generated  from  operations,  together  with its  available  bank
financing  will be sufficient  to meet the Company's  capital needs for at least
the next twelve months.

Year 2000:

The  Company  continues  to review  and  modify its  information  technology  to
recognize  the  Year  2000,  for its  critical  data  processing  systems,  both
internally and externally.  We currently  expect the project to be substantially
complete by early 1999,  with  minimal  costs.  We do not expect this project to
have a significant effect on operations.

                                       17

<PAGE>



Item 8.       Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

                                                                          Page
                                                                         ------
Consolidated Statements of Operations for each of the 
   three years ended December 31, 1997, 1996, and 1995...........          19

Consolidated Balance Sheets as of December 31, 1997 and 1996.....          20

Consolidated Statements of Shareholders' Equity for each of 
   the three years ended December 31, 1997, 1996, and 1995.......          21

Consolidated Statements of Cash Flows for each of the three 
   years ended December 31, 1997, 1996, and 1995.................          22

Notes to Consolidated Financial Statements.......................          23

Report of Ernst & Young LLP, Independent Auditors................          39


                                       18
<PAGE>


EMCON
CONSOLIDATED STATEMENTS OF OPERATIONS
<TABLE>
<CAPTION>

 ---------------------------------------------------------------------- ------------------------------------------------
                                                                                   Years Ended December 31,
                                                                        ------------------------------------------------
 (In thousands, except per share amounts)                                    1997            1996             1995
 ---------------------------------------------------------------------- --------------- ---------------- ---------------
<S>                                                                         <C>             <C>              <C>    
 Gross revenue                                                              $139,343        $137,626         $122,542
 Outside services at cost                                                     29,841          19,921           19,133
                                                                            --------        --------         --------

          Net revenue                                                        109,502         117,705          103,409

 Costs and expenses:
      Direct expenses                                                         56,134          52,608           39,473
      Indirect expenses                                                       49,782          65,844           61,498
      Restructuring/other charges                                               (586)          8,197              (17)
      Loss on disposition of laboratory                                          333           3,327               --
      Gain on sale of assets                                                  (1,026)             --               --
                                                                            ---------       --------         --------

          Income (loss) from operations                                        4,865         (12,271)           2,455

 Interest income                                                                 516             317              369
 Interest expense                                                             (1,251)         (1,112)            (181)
 Equity in income (loss) of affiliates                                            (2)            227              (74)
 Minority interest expense                                                      (810)           (188)              --
                                                                           ----------     -----------      -----------

 Income (loss) before provision (benefit) for
    income taxes                                                               3,318         (13,027)           2,569
 Provision (benefit) for income taxes                                          1,161          (2,936)             783
                                                                           ---------      -----------      ----------

 Net income (loss)                                                         $   2,157        $(10,091)       $   1,786
                                                                           =========        =========       =========

 Basic earnings (loss) per share                                           $    0.25        $  (1.19)       $    0.22
                                                                           =========        =========       =========

 Diluted earnings (loss) per share                                         $    0.25              --        $    0.21
                                                                           =========        =========       =========
                                                                                              
 Shares used in computing basic earnings (loss) per share                      8,549           8,485            8,274
                                                                           ==========       =========       =========

 Shares used in computing diluted earnings per share                           8,693              --            8,338
                                                                           ==========      ==========       =========
</TABLE>

  See accompanying notes.

                                       19

<PAGE>

<TABLE>
<CAPTION>

EMCON 
CONSOLIDATED BALANCE SHEETS
- --------------------------------------------------------------------------------------------- --------------------------
                                                                                                    December 31,
                                                                                              ------------- ------------
 (In thousands, except share amounts)                                                             1997         1996
 -------------------------------------------------------------------------------------------- ------------- ------------
<S>                                                                                            <C>           <C>    
 ASSETS
 Current Assets:
 Cash and cash equivalents                                                                     $  6,106      $  5,331
 Accounts Receivable:
     Billed accounts receivable, net of allowance for doubtful accounts
       of $634 and $515 at December 31, 1997 and 1996, respectively                              31,413        24,697
     Unbilled accounts receivable, net of allowance for doubtful accounts
       of $295 and $436 at December 31, 1997 and 1996, respectively                               5,310         8,163
 Costs and estimated earnings in excess of billings on
     uncompleted contracts                                                                          678           904
 Prepaid expenses and other current assets                                                        3,401         1,908
 Inventory                                                                                        2,238           879
 Deferred taxes, current portion                                                                  4,235         1,638
 Assets held for sale                                                                                --         9,382
                                                                                              ----------     --------
     Total Current Assets                                                                        53,381        52,902

 Net property and equipment, at cost                                                             16,182        14,722
 Notes receivable                                                                                 2,811           600
 Cash surrender value of insurance policies                                                       2,346         1,707
 Other assets                                                                                     2,597         2,493
 Deferred tax assets                                                                              1,028         4,818
 Goodwill, net of amortization                                                                   13,916        12,716
 Other intangible assets, net of amortization                                                       814           954
                                                                                              ---------     ---------
     Total Assets                                                                               $93,075       $90,912
                                                                                                =======       =======
 LIABILITIES AND SHAREHOLDERS' EQUITY
 Current Liabilities:
 Accounts payable                                                                              $  8,391      $  5,483
 Accrued payroll and related benefits                                                             4,356         6,020
 Other accrued liabilities                                                                        2,969         4,454
 Billings in excess of costs and estimated earnings
     on uncompleted contracts                                                                     2,732            94
 Long-term obligations due within one year                                                        2,350         2,250
                                                                                               --------      --------
     Total Current Liabilities                                                                   20,798        18,301
 
 Long-term debt                                                                                   11,441        14,667
 Other noncurrent obligations                                                                    2,736         2,132
 Commitments and contingencies                                                                      --            --
 Shareholders' Equity:
 Preferred stock, no par value, 5,000,000 shares authorized;
     no shares issued or outstanding                                                                --            --
 Common stock, no par value, 15,000,000 shares authorized;
     8,571,764 and 8,512,688 shares issued and outstanding at
     December 31, 1997 and 1996, respectively                                                    42,184        42,001
 Retained earnings                                                                               15,916        13,811
                                                                                                -------       -------
     Total Shareholders' Equity                                                                  58,100        55,812
                                                                                                -------       -------
     Total Liabilities and Shareholders' Equity                                                 $93,075       $90,912
                                                                                                =======       =======
</TABLE>

See accompanying notes.

                                       20
<PAGE>

<TABLE>
<CAPTION>

EMCON
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
 ---------------------------------------------------------------------------------------------------------------------------
                                                                                             Unrealized
                                                                                             Gain (Loss)
                                                                                                 on             Total
                                                         Common Stock          Retained      Marketable     Shareholders'
 (In thousands)                                       Shares      Amount       Earnings      Securities         Equity
 ---------------------------------------------------------------------------------------------------------------------------
<S>                                                     <C>       <C>           <C>          <C>               <C>    
Balance at December 31, 1994                            8,186     $40,958       $22,132      $   (31)          $63,059
 Issuance of common stock upon exercise of
   options, net of redemptions                             30          35            --                             35
 Income tax benefits of employee stock option
   exercises                                               --          50            --                             50
 Issuance of common stock under the Employee Stock
   Purchase Plan                                          114         369            --                            369
 Issuance of restricted stock, net of cancellation         (1)        (11)           --                            (11)
 Net change in unrealized losses on marketable
   securities                                              --          --            --           18                18
 Net income                                                --          --         1,786                          1,786
                                                     ----------------------------------------------------------------------

 Balance at December 31, 1995                           8,329      41,401        23,918          (13)           65,306
 Issuance of common stock upon exercise of
   options, net of redemptions                              5          15            --                             15
 Issuance of common stock under the Employee Stock
   Purchase Plan                                           88         258            --                            258
 Issuance of restricted stock, net of cancellation         91         327            --                            327
 Net change in unrealized losses on marketable
   securities                                              --          --            --           13                13
 Dividends paid                                            --          --           (16)                           (16)
 Net loss                                                  --          --       (10,091)                       (10,091)
                                                     -----------------------------------------------------------------------

 Balance at December 31, 1996                           8,513      42,001        13,811            0            55,812
 Issuance of common stock upon exercise of
   options, net of redemptions                             42         151            --                            151
 Issuance of common stock under the Employee Stock
   Purchase Plan                                           36          99            --                             99
 Cancellation of restricted stock                         (19)        (67)           --                            (67)
 Dividends paid                                            --          --           (52)                           (52)
 Net income                                                --          --         2,157                          2,157
                                                     -----------------------------------------------------------------------

 Balance at December 31, 1997                           8,572     $42,184       $15,916     $      0           $58,100
                                                     -----------------------------------------------------------------------
</TABLE>

See accompanying notes.

                                       21
<PAGE>

<TABLE>
<CAPTION>

EMCON
CONSOLIDATED STATEMENTS OF CASH FLOWS

 ------------------------------------------------------------------------------- ------------------------------------------
                                                                                         Years Ended December 31,
 Increase (decrease) in cash and cash equivalents (in thousands)                      1997         1996           1995
 ------------------------------------------------------------------------------ ------------- --------------- -------------
<S>                                                                                   <C>         <C>            <C>    
 Cash flow from operating activities:
 Net income (loss)                                                                    $2,157      $(10,091)      $ 1,786
 Adjustments to reconcile net income (loss) to net cash
 provided by operating activities:
    Depreciation                                                                       3,808         7,330         4,487
    Amortization                                                                         652         1,034           613
    Bad debt expense                                                                   1,424           717         1,022
    Loss on sale/disposal of property and equipment                                      227           474           129
    Loss on disposition of laboratory                                                    333            --            --
    Gain on disposition of assets                                                     (1,026)           --            --
    Write-down of gas production rights                                                   --           247            --
    Impairment of goodwill                                                                --         6,194            --
    Increase in salary continuation plan                                                 102           133            62
    Changes in operating assets and liabilities:
        Accounts receivable                                                           (3,971)          509         2,376
        Costs in excess of billings                                                      226          (421)           --
        Inventory                                                                     (1,359)         (102)           --
        Prepaid expenses and other assets                                             (1,015)         (782)          302
        Notes receivable                                                              (2,211)         (257)         (206)
        Cash surrender value, insurance policies                                        (639)         (381)         (531)
        Other assets                                                                   2,425        (1,238)          (49)
        Deferred tax assets                                                            1,193        (3,616)          267
        Accounts payable                                                               2,912          (351)       (4,672)
        Accrued payroll and related benefits                                            (562)          661          (605)
        Billings in excess of costs                                                    2,638          (217)           --
        Other accrued liabilities                                                     (1,125)        1,740           251
 ------------------------------------------------------------------------------- ------------- --------------- ------------

           Net cash provided by operating activities                                   6,189         1,583         5,232
 ------------------------------------------------------------------------------- ------------- --------------- ------------
 Cash flow from investing activities:
    Additions to property and equipment                                               (5,325)       (2,484)       (4,082)
    Maturities of available for sale securities                                           --           514         1,953
    Net cash on disposition of laboratory                                              3,794            --            --
    Net cash from dispositions of assets                                               1,040            --            --
    Cash portion of assets held for sale                                                  --          (593)           --
    Acquisitions, net of cash acquired                                                  (858)      (13,827)           --
    Proceeds from sale of property and equipment                                         203           508           327
 ------------------------------------------------------------------------------- ------------- --------------- ------------

           Net cash used for investing activities                                     (1,146)      (15,882)       (1,802)
 ------------------------------------------------------------------------------- ------------- --------------- ------------
 Cash flow from financing activities:
    Proceeds of new debt obligation                                                    1,314        17,526           476
    Payments of current and noncurrent obligations                                    (5,731)       (7,931)           --
    Issuance of common stock for cash, net of cancellations                              201           600           393
    Dividend payments                                                                    (52)          (16)           --
 ------------------------------------------------------------------------------- ------------- --------------- ------------

           Net cash provided by (used for) financing activities                       (4,268)       10,179           869
 ------------------------------------------------------------------------------- ------------- --------------- ------------
 Increase (decrease) in cash and cash equivalents                                        775        (4,120)        4,299
 Cash and cash equivalents, beginning of year                                          5,331         9,451         5,152
 ------------------------------------------------------------------------------- ------------ --------------- -------------
 Cash and cash equivalents, end of year                                               $6,106       $ 5,331       $ 9,451
 ------------------------------------------------------------------------------- ------------ --------------- -------------
</TABLE>
See accompanying notes.

                                       22
<PAGE>


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Organization and Summary of Significant Accounting Policies

Basis of Presentation:

The accompanying  consolidated  financial statements include the accounts of the
Company and its wholly owned  subsidiaries  after elimination of all significant
intercompany  accounts and  transactions.  Certain  amounts in the 1996 and 1995
financial statements have been reclassified to conform to the 1997 presentation.

In 1994,  the Company  converted  to a  fifty-two/fifty-three  week fiscal year,
resulting in a fifty-two week year in 1997 and a fifty-three  week year in 1996.
The  Company's  year end  falls  on the  Friday  closest  to the last day of the
calendar  quarter.  The Company also  follows a  five-four-four  week  quarterly
cycle.  While the actual  period  ends for the  fiscal  years 1997 and 1996 were
January 2, 1998 and January 3, 1997,  respectively,  for  convenience,  the date
shown on accompanying consolidated financial statements is December 31, the last
day of the calendar periods.

Use of Estimates in the Preparation of Financial Statements:

The preparation of financial  statements,  in conformity with generally accepted
accounting  principles,  requires  management to make estimates and  assumptions
that affect the reported  amounts of assets and  liabilities  and  disclosure of
contingent  assets and  liabilities at the date of the financial  statements and
the reported amounts of revenue and expenses during the reporting period. Actual
results could differ from those estimates.

Revenue Recognition and Expenses:

Revenue  from  engineering  service  contracts  is  recognized  as services  are
provided and revenue from construction projects is recognized on a percentage of
completion basis. The Company routinely subcontracts for outside services,  such
as drilling  and  specialized  laboratory  services.  These costs are  generally
passed through to the Company's customers. The Company believes net revenue is a
more accurate  measure of the value of its services than gross  revenue.  Direct
costs include  compensation  for billable hours for  professional  and technical
staff and other project expenses  reimbursed by clients.  Indirect costs include
compensation  for  non-billable  professional  and  technical  staff hours,  all
employee fringe benefits,  marketing,  and general and  administrative  expenses
such as rent, insurance, depreciation and amortization.

Cash and Cash Equivalents and Marketable Securities:

The Company considers all investment  instruments and marketable securities with
an original  maturity date of 90 days or less at the date of purchase to be cash
equivalents.  Management  determines  the  appropriate  classifications  of debt
securities  held as investments as either held to maturity or available for sale
at the time of purchase  and  reevaluates  such  designation  as of each balance
sheet date.  Investments  consisting primarily of high grade U.S. government and
corporate marketable debt securities are classified as  available-for-sale,  and
are carried at fair value,  based on quoted market  prices,  with the unrealized
gains and losses,  net of tax, reported in a separate component of shareholders'
equity. The cost of debt securities is adjusted for amortization of premiums and
accretion  of  discounts  to  maturity,  which is included  in interest  income.
Realized   gains   and   losses   and   declines   in   value   judged   to   be

                                       23

<PAGE>

other-than-temporary,  as well as any interest on these securities, are included
in  interest  income.  The cost of  securities  sold is  based  on the  specific
identification  method.  There  were  no  debt  securities  held  as  investment
as of December 31, 1997.

Supplemental Cash Flow Information:

Cash paid for income taxes was  approximately  $1,673,000,  $659,000 and $58,000
for the years ended December 31, 1997,  1996 and 1995,  respectively.  Cash paid
for interest was approximately  $1,210,000,  $951,000 and $181,000 for the years
ended December 31, 1997, 1996 and 1995, respectively.

In 1995,  the Company sold certain land and buildings in exchange for $1,100,000
in marketable trade credits which will be used to reduce cash payments of future
recurring  corporate  expenses.  No significant gain or loss was incurred on the
transaction. The trade credits expire in eight years, and the Company expects to
utilize such credits prior to expiration. To date, $280,000 of the trade credits
have been applied to payments. The Company has agreements for the utilization of
an  additional  $400,000 of the trade  credits.  $225,000  and $175,000 of these
credits are  included on the  December 31, 1997  consolidated  balance  sheet in
other current assets and other assets,  respectively.  The remaining  balance of
$420,000 is included on the  December  31, 1997  consolidated  balance  sheet in
other assets.

Inventories:

Inventories  are  recorded  at the lower of cost using the  first-in,  first-out
method, or market.

Property and Equipment:

Property and equipment, net of assets held for sale, consists of (in thousands):
- --------------------------------------------------------------------------------
Years Ended December 31,                            1997          1996
- --------------------------------------------------------------------------------
Land and buildings                               $  4,683      $  2,808
Machinery and equipment                            19,895        18,886
Furniture and fixtures                              3,685         4,130
Vehicles                                            2,362         2,871
Leasehold improvements                              1,074         1,328
- --------------------------------------------------------------------------------
     Total                                         31,699        30,023
Less accumulated depreciation and amortization     15,517        15,301
- --------------------------------------------------------------------------------
Net property and equipment                        $16,182       $14,722
- --------------------------------------------------------------------------------
Property and equipment are stated at cost.  Depreciation  and  amortization  are
provided  on the  straight-line  basis over the lesser of the  estimated  useful
lives of the  assets or the term of the lease  (lives  range  from 3-31  years).
Amortization of property and equipment acquired under capital leases is included
with  depreciation  expense.  

Approximately  $3,963,000  and  $7,058,000  of fixed  assets net of  accumulated
depreciation  of $3,533,000 and $6,236,000  were sold or disposed of in 1997 and
1996, respectively.


                                       24
<PAGE>
Basic and Diluted Net Income (Loss) per Share:

In 1997,  the Financial  Accounting  Standards  Board issued  Statement No. 128,
Earnings per Share.  Statement 128 replaced the calculation of primary and fully
diluted  earnings per share with basic and diluted  earnings  per share.  Unlike
primary  earnings  per share,  basic  earnings  per share  excludes any dilutive
effects of options,  warrants and convertible  securities.  Diluted earnings per
share is very similar to fully diluted earnings per share as previously computed
under  APB 15.  Income  (loss)  per  share  amounts  for all  periods  have been
presented, and where appropriate,  the presentation has been restated to conform
to the requirements under Statement 128.

Business Segment and Concentration of Credit Risk:

The Company operates within one business segment,  which provides  comprehensive
environmental  engineering,  consulting,  construction facilities operations and
maintenance,  and services to  industrial,  private and  governmental  concerns,
predominantly  in the waste  disposal,  petroleum,  wood products,  chemical and
manufacturing  industries;  as well as to utilities,  non-regulatory  government
entities,  financial  institutions  and real  estate  developers.  There  are no
significant  operations or revenues  generated from non United States locations.
Ongoing credit evaluations of its customers'  financial  condition are performed
by the Company, generally requiring no collateral.

In 1997, one customer accounted for approximately 10% of gross revenue; however,
excluding  subcontractor  fees,  this  customer  represented  approximately  one
percent of net revenue.  In 1996 and 1995,  no customer  accounted for more than
10% of gross revenue.

Recent Accounting Pronouncements:

In June 1997, the Financial Accounting Standards Board ("FASB") issued Statement
of Financial Accounting Standards No. 130, Reporting Comprehensive Income ("SFAS
130") and Statement of Financial Accounting Standards No. 131, Disclosures About
Segments  of an  Enterprise  and  Related  Information  ("SFAS  131").  SFAS 130
establishes  standards for the reporting and display of comprehensive income and
its components in the financial statements. Comprehensive income is comprised of
net income  (loss),  changes in the value of  available-for-sale  securities and
foreign currency translation adjustments,  and other such items disclosed in the
statement of stockholders'  equity.  SFAS 131 revises the manner in which public
companies report segment information in annual financial statements. The Company
will  adopt  SFAS 130 and SFAS 131 in the first  quarter  of 1998,  and based on
current  circumstances,  does  not  believe  the  effect  of  adoption  will  be
significant.

2. Contracts in Progress

Information related to contracts in progress (in thousands):
- --------------------------------------------------------------------------------
Years Ended December 31,                                1997         1996
- --------------------------------------------------------------------------------
Costs incurred on uncompleted contracts               $12,995        $4,181
Estimated earnings on uncompleted contracts             2,187           940
                                                     --------       -------
                                                       15,182         5,121
Less billings to date on uncompleted contracts         17,236         4,311
- --------------------------------------------------------------------------------
       Total                                         $ (2,054)        $ 810
- --------------------------------------------------------------------------------


                                       25
<PAGE>


Included  in the  accompanying  consolidated  balance  sheets  on an  individual
contract basis are (in thousands):
- --------------------------------------------------------------------------------
Years Ended December 31,                                     1997        1996
- --------------------------------------------------------------------------------
Costs and estimated earnings in excess of billings
    on uncompleted contracts.                             $   678     $   904
Billings in excess of costs and estimated earnings
    on uncompleted contracts                               (2,732)        (94)
- --------------------------------------------------------------------------------
        Total                                             $(2,054)    $   810
- --------------------------------------------------------------------------------

3. Restructuring/Other Charges

In the  fourth  quarter  of  1996,  senior  management  reviewed  the  Company's
operational and  administrative  functions for the purpose of further  improving
the Company's  competitiveness and overall profitability.  Based on this review,
the  Company's  Board of Directors  approved a strategic  restructuring  plan in
December,  1996 to reposition the Company to fully exploit its core strengths in
engineering,  design,  construction,  operations and maintenance. As a result of
these actions, the Company recognized pre-tax restructuring and other charges of
$1,237,000 and $6,960,000,  respectively.  Included in the restructuring  charge
were $604,000  related to the closure or  downsizing of several  underperforming
offices,  $628,000 related to employee severance and the write-off of employment
contracts for former employees no longer actively participating in the Company's
affairs,  and a $5,000 adjustment to the 1994  restructuring  plan.  Included in
other charges were $4,768,000 related to the write-down in the carrying value of
goodwill associated with the Company's  continuing operating units in accordance
with the Statement of Financial  Accounting  Standards No. 121,  "Accounting for
the  Impairment of Long-Lived  Assets and for  Long-Lived  Assets to Be Disposed
Of", $1,529,000 related to the write-off of idle or disposed of assets, $368,000
related to the write-down of the Company's  landfill gas  production  rights and
related fixed assets,  and $156,000  related to the buyout and  cancellation  of
outstanding  stock  options  to  purchase  approximately  743,000  shares of the
Company's common stock held by employees of the Company. Also, included in other
charges were $139,000 for various  other  operational  costs.  Fair value of the
goodwill associated with the Company's  continuing  operating units was based on
each operating unit's expected future discounted cash flows.

As of December 31, 1997,  $328,000 of the 1996  restructuring  charges have been
incurred and $318,000 remains in other accrued  liabilities.  A net reduction of
$586,000 to the reserve was  recorded to reflect  lower than  anticipated  costs
associated with the abandonment and subsequent  sublease of certain office space
and lower than anticipated  severance costs due to retaining certain  previously
identified personnel.

In October,  1994,  as a result of changes in senior  management,  the Company's
Board of Directors  approved a corporate  restructuring  plan that  included the
write-off  of  employment  contracts  with  no  future  value,   termination  of
personnel,  and the  elimination or  abandonment of excess and under  performing
assets and facilities. During the twelve months ended December 31, 1997, $27,000
of cash  charges  related to the 1994  restructuring  were  incurred and charged
against the  established  reserve,  bringing the reserve to a zero  balance.  To
date,  $1,169,000 of  restructuring  costs have been incurred with no additional
cost anticipated.

                                       26
<PAGE>


4. Impairment of Assets Held for Sale/Loss on Disposition of Laboratory

In December 1996, the Company executed a letter of intent to sell its laboratory
division, Columbia Analytical Services, Inc. ("CAS"), to the employees of CAS by
the first quarter of 1997. In anticipation  of the sale, the Company  recognized
an impairment in its investment in CAS of $3,327,000;  including a write-down in
the carrying value of goodwill associated with previous laboratory  acquisitions
of $1,426,000. For the year ended December 31, 1996, CAS had a loss before taxes
of $142,000.

During the first quarter of 1997,  the Company  completed the sale of CAS to the
employees of CAS for $4,000,000 in cash,  CAS'  promissory  notes for $3,219,000
("CAS  Notes")  and a  continuing  preferred  stock  interest  in CAS  valued at
$500,000.  The  Company  paid  $206,000  in  cash to CAS  for  retired  employee
contracts  and for  accelerated  vesting of stock  options and other  non-vested
stock rights. As a result of several closing adjustments, the Company recognized
an  additional  loss  on  disposition  of CAS in the  first  quarter  of 1997 of
$333,000.  CAS and the Company  also  entered  into a Master  Service  Agreement
relating to the continued  provision of laboratory  services to the Company (the
"MSA").  The CAS Notes are subject to offset,  in certain  circumstances,  based
upon the levels of future  revenues to CAS  accruing  under the MSA. The Company
currently  does not  anticipate  that any  material  offset will occur under the
terms of the MSA.

5.  Other Dispositions

During the first quarter of 1997,  the Company  completed the sale of one of its
landfill  gas-to-energy  projects,  including the related  leasehold  production
rights and associated machinery and equipment.  The Company recognized a gain on
disposition of the project of $1,026,000.

6. Acquisitions

Goodwill

Effective May 1, 1997,  Organic Waste  Technology,  Inc.  (OWT),  a wholly-owned
subsidiary of EMCON, acquired all of the outstanding equity interest in National
Earth  Products,  Inc.  (NEP),  a  Lancaster,  Pennsylvania-based  company  with
significant   expertise  in  landfill  civil   construction  and  related  soils
processing.  NEP was  acquired  for $933,000 in cash and the issuance of EMCON's
convertible  promissory  notes in the  aggregate  principal  amount of $800,000.
Approximately  50% of the  convertible  notes are due on May 1,  2000,  with the
balance due on May 1, 2002.  The  indebtedness  bears interest at the rate of 8%
per annum and is  convertible  into EMCON Common Stock at a conversion  price of
$6.50 per share.  The transaction was accounted for as a purchase.  Specifically
identifiable   intangible  assets  and  goodwill  of  approximately   $1,476,000
resulting from this acquisition are included in goodwill and are being amortized
over twenty-five years using the straight line method.  Accumulated amortization
as of December 31, 1997 was approximately $39,000.  Additional consideration may
be paid for the purchase of NEP subject to the  achievement  of certain earn out
goals over the next three years.  This acquisition would not have had a material
effect on net revenue, net income, or income per share, had it been effective at
January 1, 1997.

On February  29,  1996,  EMCON  acquired all the  outstanding  capital  stock of
Organic  Waste  Technologies,  Inc.  ("OWT"),  a Cleveland  based  construction,
equipment and operations and maintenance  company with significant  expertise in
solid waste  management.  The Company purchased OWT for $13,859,000 in cash plus

                                       27

<PAGE>

the issuance of convertible  notes and other  contractual  indebtedness  held by
certain  senior  OWT  management  in the  principal  amount of  $1,747,000.  The
transaction was accounted for as a purchase.  The indebtedness bears interest at
the rate of 8% per annum with all  principal due and payable in full on March 1,
2001. The  indebtedness may be converted into shares of OWT common stock upon an
underwritten  public  offering of OWT's  common  stock in an amount in excess of
$10,000,000.  In the  event the  indebtedness  has not been  converted  into OWT
shares,  it may instead be  converted  into shares of EMCON  common  stock for a
period of ninety days after November 30, 2001 at a conversion price of $6.50 per
share. Goodwill of approximately $11,382,000, which included a $253,000 increase
resulting  from the  establishment  of a  deferred  tax  asset  related  to this
acquisition,  is being  amortized  over  thirty  years using the  straight  line
method. Related accumulated amortization at December 31, 1997, was approximately
$689,000.

     The following  summarizes  the unaudited pro forma net revenue,  net income
(loss),  and income  (loss) per share of the combined  company for the unaudited
twelve  months ended  December 31, 1996  compared to the audited  twelve  months
ended December 31, 1997 (in thousands):
- --------------------------------------------------------------------------------
                                                                 Pro Forma
                                                1997               1996
Twelve months ended December 31,             (audited)          (unaudited)
- -------------------------------------------------------------- -----------------
Net revenue                                    $109,502          $120,738
Net income (loss)                                 2,157           (10,407)
Income (loss) per share                           $0.25            ($1.23)
- --------------------------------------------------------------------------------
The above pro forma  results of  operations do not purport to reflect the actual
results of operations had the Company actually  acquired OWT as of the beginning
of 1996.

Effective April 1, 1994, the Company acquired all of the capital stock of Wehran
Envirotech,  Inc. ("Wehran"),  an environmental consulting company headquartered
in Middletown,  New York, in exchange for 410,000 shares of the Company's common
stock  valued at  $2,818,000  and  $439,000  in direct  acquisition  costs.  The
transaction was accounted for as a purchase. An additional 80,000 shares, valued
at $290,000, were issued to Wehran shareholders in December, 1994 as a result of
their attaining certain  predetermined  operating performance goals. Goodwill of
approximately $1,896,000 resulting from this acquisition is being amortized over
twenty years using the  straight  line method.  Accumulated  amortization  as of
December 31, 1997,  was  approximately  $348,000.  Subsequent to the purchase of
Wehran,  the Company issued an additional  425,000 shares of its common stock to
retire approximately  $5,000,000 of Wehran's convertible  subordinated notes. In
addition,  the Company  also paid  approximately  $6,100,000  in cash to satisfy
amounts  borrowed  against  Wehran's  revolving  credit  line  ($5,000,000)  and
obligations due to settlement of certain litigation ($1,100,000).

Acquisitions  made by the  Company  from  1992  through  1993 have  resulted  in
goodwill of approximately  $1,216,000  which is included with intangible  assets
and is being amortized over a period of 20 years using the straight-line method.
Related  accumulated  amortization  was  approximately  $979,000 at December 31,
1997.

Other Intangible Assets:

Intangible  assets included  $879,000 at December 31, 1996,  representing  gross
costs incurred to obtain landfill gas production rights. The related accumulated
amortization was approximately $798,000 at December 31, 1996. In December, 1996,
the  Company  reduced  the  value of these  landfill  gas  production  rights by

                                       28

<PAGE>

$247,000 to their  estimated  fair value,  and, at December 31, 1997,  they were
fully amortized.

Other   intangible   assets  at  December  31,  1997,  also  include   $888,000,
representing the gross cost to reacquire  certain patent rights  associated with
the Company's  proprietary leachate  evaporation system technology.  Accumulated
amortization at December 31, 1997, was  approximately  $74,000 and the patent is
being amortized over the 15 year life of the patent.

7. Other Noncurrent Obligations

Certain employees  participate in a salary  continuation plan which will provide
the employees with a 10-year  benefit from the Company.  Monthly  benefits range
from $600 to $4,500, and the employees vest in varying amounts from the fifth to
the tenth  anniversary  date of their  contracts.  Such  amounts will be paid in
addition to those payments due specifically as  consideration  for the employees
meeting the non-competition provisions of their contracts.

Included in other  noncurrent  obligations are the Company's  liabilities  under
salary continuation agreements. Liabilities under salary continuation agreements
were $1,088,000 and $939,000 at December 31, 1997 and 1996, respectively.  These
liabilities have been funded through insurance policies.

Capital lease obligations are included in property and equipment with a cost and
accumulated depreciation of $87,000 and $44,000,  respectively,  at December 31,
1997, and $324,000 and $80,000, respectively, at December 31, 1996.

8. Retirement Plan

The Company  sponsors a qualified  retirement plan,  generally  available to all
employees,  which is based on Section 401(k) of the Internal Revenue.  Employees
may elect to contribute up to 20% of their annual compensation to the plan up to
the Internal Revenue Service annual contribution limit of $9,500 for 1997. Prior
to 1997,  the Company  voluntarily  matched  the  employee's  contribution  to a
maximum of 3% of annual  compensation.  In 1997, the Company  elected to suspend
the Company  match.  The Company's  contributions  to the  retirement  plan were
$1,146,000,  and  $1,177,000  for the years  ended  December  31, 1996 and 1995,
respectively.

                                       29

<PAGE>


9. Commitments

The Company leases its office  facilities,  as well as office  equipment,  under
operating leases in various  locations.  Until 1995,  certain office  facilities
were leased from  partnerships in which certain officers and shareholders of the
Company had controlling interests. Lease arrangements with the partnerships were
terminated  in 1995.  The  annual  rents  under  leases  from  partnerships  was
approximately  $473,000 for 1995. The Company's minimum annual lease commitments
under all operating leases are approximately (in thousands):
- --------------------------------------------------------------------------------
Years Ending December 31,
- --------------------------------------------------------------------------------
1998                                                                     $4,808
1999                                                                      3,921
2000                                                                      2,748
2001                                                                      1,623
2002                                                                        961
- --------------------------------------------------------------------------------
Rent expense was  approximately  $5,523,000,  $5,263,000 and $4,429,000 for
the years ended December 31, 1997, 1996 and 1995, respectively.

Certain employees have signed non-competition agreements which will provide them
with  monthly  payments  from  $400 to $3,000  for a period of up to ten  years,
commencing on the tenth anniversary date of the agreements. (See note 7.)

10. Litigation

As a firm  engaged in  environmental-related  matters,  the  Company  encounters
potential liability,  including claims for significant  environmental damage, in
the normal course of business.  The Company is party to lawsuits and is aware of
potential exposure related to certain claims. In the fourth quarter of 1996, the
Company agreed to settlement terms on a number of outstanding legal matters.  At
the same time, the Company assessed the potential exposure relative to all other
known pending matters.  Based on the foregoing,  the Company increased its legal
reserve by an additional  $1,553,000 at December 31, 1996. No increases to legal
reserves  occurred in 1997. In the opinion of management,  the resolution of all
known lawsuits/claims at amounts in excess of established reserves will not have
a material  adverse  affect on the Company's  consolidated  financial  position,
results of operations or cash flows.

                                       30
<PAGE>


11. Long-term Debt
<TABLE>
<CAPTION>

Long-term debt consists of the following (in thousands):
- ---------------------------------------------------------------------------------------- --------------- -------------
Years Ended December 31,                                                                        1997           1996
- ---------------------------------------------------------------------------------------- --------------- -------------
<S>                                                                                           <C>            <C>
Variable-rate note payable to bank
     (effective  rate at 12/31/97  was 7.46%).  Payable in  quarterly  installments  of       $4,857         $ 9,286
     $357  with a final  payment  of $3,214 in 2001.  Collateralized  by the  assets of
     EMCON.
8.00%  unsecured  notes  payable  to  certain  former  OWT  shareholders.   Payable  on        1,747           1,747
     termination  date in 2001.  This debt may be converted  into common  stock
     at $6.50 per share.  Conversion of debt, if it occurs,  would be within ninety days 
     after November 30, 2001.
7.99% note payable to bank in monthly installments  through 2006.  Cross-collateralized        4,285           4,661
     by the assets of OWT with a net book value of $7,823.
8.49% note payable to bank in monthly  installments  through  2001.  Collateralized  by          284             374
     equipment of OWT with a net book value of $337.
8.99% note payable to bank in monthly installments  through 2000.  Cross-collateralized          206             296
     by the assets of OWT with a net book value of $7,823.
7.89% note payable to bank in monthly installments  through 2012.  Cross-collateralized        1,158              --
     by the assets of OWT with a net book value of $7,823.
8.00% unsecured notes payable to former NEP shareholders.  Approximately                         800              --
     50% of the  convertible  notes are due on May 1, 2000 with the  balance due on May
     1,  2002.  This  debt may be  converted  into common stock at $6.50  per
     share.  Conversion of debt, if it occurs,  would be 50% on May 1, 2000, and 50% on
     May 1, 2002.
9.07%  note  payable  to  finance  company  in  monthly   installments   through  2001.          142              --
     Collateralized by equipment of NEP with a net book value of $88.
Other  indebtedness,  interest  rates vary from 5.3% to 15.9%  payable in  installments          312             553
    through 2000.  (Primarily lease obligations)
                                                                                         --------------- -------------
Total Long-term Debt                                                                         $13,791         $16,917
Less current portion                                                                         $ 2,350         $ 2,250
- ---------------------------------------------------------------------------------------- --------------- -------------
Long-term Debt, net of current portion                                                       $11,441         $14,667
- ---------------------------------------------------------------------------------------- --------------- -------------
</TABLE>

Interest  paid on all  outstanding  debt  amounted  to  $1,135,000  in 1997  and
$951,000 in 1996.

Aggregate  principal  payments for the next five years for years ending December
31,
- --------------------------------------------------------------------------------
1998                                                                $  2,350
1999                                                                   2,173
2000                                                                   2,937
2001                                                                   2,899
2002 and thereafter                                                    3,432
- --------------------------------------------------------------------------------

In  conjunction  with  the  acquisition  of  OWT,  the  Company  entered  into a
$20,000,000   secured  Credit  Agreement  with  its  existing  commercial  bank,

                                       31

<PAGE>

replacing  its  previous  $10,000,000  unsecured  line of credit.  Under the new
agreement,  the Company borrowed  $10,000,000 on a term loan basis with interest
at a managed  rate not to exceed the prime rate.  Principal  is to be  amortized
over seven years, but with any unpaid amount finally due and payable on June 30,
2001.  The  remaining  $10,000,000  under the Credit  Agreement is available for
working  capital  purposes  (with up to  $5,000,000  also  being  available  for
non-working  capital  purposes).  The line of  credit  component  of the  Credit
Agreement  expires on May 31,  1998.  The  Company  expects to renew the line of
credit  component of the Credit Agreement  following its expiration.  The Credit
Agreement  contains  provisions with respect to the payment of dividends and the
level of capital expenditures and requires the maintenance of specific levels of
working capital, tangible net worth and continued quarterly profitability. As of
December 31, 1997, the Company was in compliance with all debt covenants.

12. Shareholders' Equity

Preferred Stock:

The Board of Directors of the Company has the authority to determine the rights,
preferences, privileges and restrictions of the authorized preferred stock.

Stock Option and Restricted Stock Plans:

The Company has issued  options to purchase  shares of common stock  pursuant to
its 1986 and 1988  Incentive  Stock Option Plans (both  expired in 1997).  These
options were granted with option  exercise  prices which are equal to 100%, 105%
or 110% of fair market value on the date of grant, and expire over terms ranging
from five to ten years.  Options  generally vest ratably over a two year or four
year period.

The Company's  Restricted  Stock Plan was approved by its  shareholders  in May,
1991. A total of 225,000 shares of the Company's  Common Stock were reserved for
issuance under the Restricted Stock Plan.  Shares granted to employees under the
Restricted Stock Plan generally vest in equal annual  installments  over periods
ranging  from three to four years.  At December 31,  1997,  118,361  shares were
available for issuance.


                                       32
<PAGE>

<TABLE>
<CAPTION>

A summary of activity of the Plans follows:
 --------------------------------------------------------- --------------------------------------------------------
                                                                             Options Outstanding
                                                           -------------- ---------------------- ------------------
                                           Available          Number              Price              Aggregate
                                           for Grant         of Shares          Per Share              Value
 ------------------------------------ -------------------- -------------- ---------------------- ------------------
<S>                                        <C>                <C>            <C>                    <C>    

Balance at December 31, 1994                838,284           2,226,337      $1.15 - $11.25         $17,446,023
Options granted                            (386,650)            386,650      $3.50 - $ 4.88           1,545,537
Options canceled                             72,629             (72,629)     $3.33 - $10.00            (591,701)
Options exercised                             --                (30,000)          $1.15                 (34,666)
- ------------------------------------- -------------------- -------------- ---------------------- ------------------

Balance at December 31, 1995                524,263           2,510,358      $3.33 - $11.25         $18,365,193
Options granted                            (192,448)            192,448      $3.25 - $ 4.88             728,144
Options canceled                          1,518,674          (1,518,674)     $3.33 - $ 11.25        (12,357,381)
Options exercised                             --                 (4,700)     $3.33 - $ 3.50             (15,698)
- ------------------------------------- -------------------- -------------- ---------------------- ------------------

Balance at December 31, 1996              1,850,489           1,179,432      $3.25 - $11.25         $ 6,720,258
Options granted                          (1,261,500)          1,261,500      $3.13 - $ 5.00           5,250,375
Options canceled                            534,043            (534,043)     $3.25 - $11.25          (3,030,431)
Options exercised                             --                (42,374)     $3.33 - $ 3.75            (150,621)
Options expired                          (1,004,671)              --                   --                --
                                                                                   --
- ------------------------------------- -------------------- -------------- ---------------------- ------------------

Balance at December 31, 1997                118,361           1,864,515      $3.13 - $10.00         $ 8,789,581
- ------------------------------------- -------------------- -------------- ---------------------- ------------------
</TABLE>

Employee Stock Purchase Plan:

The EMCON Employee Stock Purchase Plan (ESPP)  provided that  substantially  all
employees  could purchase the Company's  common stock at a price equal to 85% of
its fair value on  certain  specified  dates via a payroll  deduction  plan.  At
December 31, 1996,  248,338  shares were  available  for  issuance.  The Company
discontinued the ESPP effective February 1, 1997.

Stock-Based Compensation:

As  permitted  under  FASB  Statement  No.  123,   "Accounting  for  Stock-Based
Compensation"   (FASB  123),  the  Company  has  elected  to  follow  Accounting
Principles Board Opinion No. 25, "Accounting for Stock Issued to Employees" (APB
25) in accounting for stock-based awards to employees. Under APB 25, the Company
generally recognizes no compensation expense with respect to such awards.

Pro Forma information  regarding net income (loss) and earnings (loss) per share
is required by FASB 123 for awards  granted  after  December 31, 1994, as if the
Company had accounted  for its  stock-based  awards to employees  under the fair
value method of FASB 123. For these  purposes,  the fair value of the  Company's
stock-based  awards to employees  was  estimated  using a  Black-Scholes  option
valuation model. The Black-Scholes  option valuation model was developed for use
in  estimating   the  fair  value  of  traded  options  which  have  no  vesting
restrictions and are fully  transferable.  In addition,  the Black-Scholes model
requires the input of highly subjective assumptions including the expected stock
price  volatility.  Because the Company's  stock-based  awards to employees have
characteristics  significantly  different  from  those of  traded  options,  and
because changes in the subjective  input  assumptions can materially  affect the
fair  value  estimate,  in  management's  opinion,  the  existing  models do not
necessarily  provide  a  reliable  single  measure  of  the  fair  value  of its
stock-based  awards to employees.  The fair value of the  Company's  stock-based
awards to  employees  was  estimated  assuming  no  expected  dividends  and the
following weighted-average assumptions.

                                       33

<PAGE>

- --------------------------------------------------------------------------------
                                     Options                      ESPP
                                     -------                      ----
                           1997       1996      1995     1997    1996     1995
- --------------------------------------------------------------------------------
Expected life (years)       4.5        6.6       7.0      --      0.5      0.5
Expected volatility         .66        .49       .49      --      .32      .42
Risk-free interest rate     6.1%       6.1%      6.3%     --      5.5%     6.1%
- --------------------------------------------------------------------------------

For pro forma  purposes,  the estimated fair value of the Company's  stock-based
awards to employees is amortized over the options'  vesting period (for options)
and the six-month  purchase  period (for stock  purchases  under the ESPP).  The
Company's pro forma information follows:
<TABLE>
<CAPTION>

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

In thousands except for earnings (loss) per share information             1997           1996             1995
- ----------------------------------------------------------------------- ------------ -------------- -----------------
<S>                                                                     <C>             <C>                <C>  
Net income (loss)
     As reported                                                        $2,157          $(10,091)          $1,786
     Pro forma                                                          $1,710          $(10,393)          $1,688
Basic (loss) earnings per share
     As reported                                                        $ 0.25          $  (1.19)          $ 0.22
     Pro forma                                                          $ 0.20          $  (1.27)          $ 0.20
- ----------------------------------------------------------------------- ------------ -------------- -----------------
</TABLE>

Because FASB 123 is applicable only to awards granted subsequent to December 31,
1994, its pro forma effect will not be fully reflected until approximately 1999.

The weighted  average fair value of options  granted during 1997,  1996 and 1995
was $2.11, $2.14 and $2.30 per share, respectively.

The following  summarizes  information about fixed stock options  outstanding at
December 31, 1997:
<TABLE>
<CAPTION>

- ----------------------------------------------------------------------------------- ---------------------------------
                               Options Outstanding                                        Options Exercisable
                                                                      Weighted                            Weighted
                             Number          Weighted Average          Average                            Average
   Range of Exercise     Outstanding at    Remaining Contractual   Exercise Price   Number Exercisable    Exercise
        Prices              12/31/97               Life                                                    Price
- ------------------------ ---------------- ------------------------ ---------------- ------------------- -------------
    <S>                        <C>                 <C>                  <C>               <C>               <C>               <C>  
    $9.25 - $10.00             172,750             4.6                  $9.31             172,750           $9.31
    $6.50 - $ 8.83              72,950             5.6                  $6.98              62,700           $6.98
    $5.00 - $ 6.00             669,125             5.0                  $5.01              12,750           $5.28
    $3.13 - $ 4.88             949,690             5.3                  $3.50             166,953           $3.93
- ------------------------ ---------------- ------------------------ ---------------- ------------------- -------------
    $3.13 - $10.00           1,864,515             5.2                  $4.71             415,153           $6.67
- ------------------------ ---------------- ------------------------ ---------------- ------------------- -------------
</TABLE>

December 31, 1996,  673,400 shares were exercisable at an average exercise price
of $6.93 per share.

In December,  1996 employees  (other than officers and  directors)  with options
having  exercise  prices of $5.00 per share or  greater  were given the right to
either sell back their options to the Company, to exchange their options for new
options,  to retain their original  options or elect a combination of the three.
The rates at which the  outstanding  options  could be exchanged or sold back to
the Company varied depending on the original option exercise price. Participants
could  exchange  their  outstanding  stock options for newly granted  options at
rates  ranging  from one new share for every three old option  shares to one new
share for every five old option shares.  Alternatively,  participants could sell
back their options at prices ranging from $0.10 to $0.40 per option share.  This
resulted in options of 743,319 shares being  canceled for a cash  settlement of

                                       34
<PAGE>

approximately  $156,000,  and an additional  203,727 shares canceled in exchange
for the grant of new options  covering  47,247  shares  with an option  exercise
price of $3.68 per share.

13.  Earnings Per Share
<TABLE>
<CAPTION>

- ------------------------------------------------------------------- ----------------------------------------------
                                                                                 Years Ended December 31,
 (In thousands, except for earnings per share)                             1997             1996           1995
- ------------------------------------------------------------------- ----------------- --------------- --------------
<S>                                                                       <C>             <C>              <C>  
 Numerator:
     Net income (loss)                                                    $ 2,157         $(10,091)        $ 1,786
                                                                          -------         ---------        -------
     Numerator for basic earnings per share -
         income (loss) available to common stockholders                   $ 2,157         $(10,091)        $ 1,786

     Effect of dilutive securities:
         8% convertible debentures                                            N/A(1)            --             N/A
                                                                         --------         ----------       -------

     Numerator for diluted earnings per share -
         income (loss) available to common stockholders
         after assumed conversions                                        $ 2,157         $(10,091)        $ 1,786
                                                                          -------         ---------        -------

  Denominator:
     Denominator for basic earnings (loss) per share -
       weighted-average shares                                              8,549            8,485           8,274

     Effect of dilutive securities:
         Employee stock options                                               144               --              64
         8% convertible debentures                                            N/A(1)            --             N/A
                                                                          -------         ---------        --------

     Dilutive potential common shares
     Denominator for diluted earnings per share -
         adjusted weighted average shares and assumed
         conversions                                                        8,693               --           8,338
                                                                        =========         ==========       =========

     Basic earnings (loss) per share                                    $    0.25         $  (1.19)        $  0.22
                                                                        =========         ==========       =========

     Diluted earnings per share                                         $    0.25               --         $  0.21
                                                                        =========         ==========       =========

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

(1)Excluded from the above  reconciliations were approximately 269,000 shares of
common  stock  that may be issued at $6.50 per share to  convert  $1,747,000  of
indebtedness to certain senior  management of OWT because they were antidilutive
at December 31, 1997.  Conversion of debt, if it occurs,  would be within ninety
days after November 30, 2001.

Also excluded from the above  reconciliations were approximately  123,000 shares
of common  stock  that may be issued at $6.50 per share to convert  $800,000  of
indebtedness to certain senior  management of NEP because they were antidilutive
at December 31, 1997.  Conversion of debt, if it occurs,  would be 50% at May 1,
2000, and 50% at May 1, 2002.


                                       35
<PAGE>


14.  Income Taxes

The  provision  (benefit)  for  income  taxes  consists  of  the  following  (in
thousands):
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------- ------------ ------------- --------------
Years Ended December 31,                                                     1997          1996          1995
- ------------------------------------------------------------------------- ------------ ------------- --------------
<S>                                                                          <C>          <C>               <C>    
Federal:
   Current                                                                   $   43     $    607           $438
   Deferred                                                                     832       (3,358)            61
- ------------------------------------------------------------------------- ------------ ------------- --------------
        Total Federal                                                           875       (2,751)           499
- ------------------------------------------------------------------------- ------------ ------------- --------------
State:
   Current                                                                      179           73             78
   Deferred                                                                     107         (258)           206
- ------------------------------------------------------------------------- ------------ ------------- --------------
        Total State                                                             286         (185)           284
- ------------------------------------------------------------------------- ------------ ------------- --------------
        Total Federal and State                                              $1,161      $(2,936)          $783
- ------------------------------------------------------------------------- ------------ ------------- --------------

</TABLE>
A  reconciliation  between the  Company's  effective  tax rate of 35.0% in 1997,
(22.5%) in 1996 and 30.5% in 1995 and the U.S.  statutory rate is as follows (in
thousands):
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------- ------------ -------------- --------------
Years Ended December 31,                                                     1997          1996           1995
- ------------------------------------------------------------------------- ------------ -------------- --------------
<S>                                                                          <C>         <C>                <C> 
Tax at U.S. statutory rate                                                   $1,128      $(4,559)           $899
State taxes, net of federal benefit                                             189         (280)            149
Fuel tax credits                                                               (416)        (454)           (515)
Goodwill amortization                                                           180        2,306             150
Meals and entertainment                                                          90           94             105
Other individually immaterial items                                             (10)         (43)             (5)
- ------------------------------------------------------------------------- ------------ -------------- --------------
        Total Federal and State                                              $1,161      $(2,936)           $783
- ------------------------------------------------------------------------- ------------ -------------- --------------
</TABLE>
As of December 31, 1997, the Company has federal  alternative minimum tax credit
carryforwards of approximately $1,980,000 which have no expiration date.


                                       36
<PAGE>


Deferred  income  taxes  reflect  the net tax effects of  temporary  differences
between the carrying  amounts of assets and liabilities for financial  reporting
purposes and the amounts used for income tax purposes. Significant components of
the Company's deferred tax assets and liabilities  consisted of the following at
(in thousands):
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------- ---------- ------------
Years Ended December 31,                                                                       1997        1996
- -------------------------------------------------------------------------------------------- ---------- ------------
<S>                                                                                            <C>        <C>
Deferred tax assets:
     Alternative minimum tax credit carryforwards                                              $1,980     $2,327
     Deferred compensation                                                                        342        340
     Allowance for doubtful accounts                                                              318        403
     Vacation accruals                                                                            582        636
     Restructuring accruals                                                                     2,330      3,145
     Other individually immaterial items                                                          221        424
- -------------------------------------------------------------------------------------------- ---------- ------------
         Total deferred tax assets                                                             $5,773     $7,275
- -------------------------------------------------------------------------------------------- ---------- ------------
Deferred tax liabilities:
     Tax over book depreciation                                                               $   436    $   532
     Tax accounting method changes                                                                 72         70
     Payment liabilities deducted                                                                   2        108
     Supplies                                                                                      --        110
- -------------------------------------------------------------------------------------------- ---------- ------------
         Total deferred tax liabilities                                                       $   510    $   820
- -------------------------------------------------------------------------------------------- ---------- ------------
Total net deferred tax assets                                                                  $5,263     $6,455
- -------------------------------------------------------------------------------------------- ---------- ------------
</TABLE>
15.  Related Party Transactions

The Company's Chief Financial Officer, currently serves as a member of the Board
of  Directors  of  Columbia  Analytical  Services,  Inc.  (CAS),  an  analytical
laboratory company in which the Company retains a minority interest. CAS remains
a significant outside vendor of laboratory services to the Company.


                                       37
<PAGE>
<TABLE>
<CAPTION>

16.  Quarterly Data (unaudited)

 -----------------------------------------------------------------------------------------------------------------
 (In thousands                                             First           Second          Third           Fourth
 except per share amounts)                                Quarter         Quarter         Quarter         Quarter
 -----------------------------------------------------------------------------------------------------------------
<S>                                                       <C>              <C>             <C>            <C> 
 1996
 Gross revenue                                            $28,564          $35,881         $36,416        $36,765
 Net revenue                                               24,607           30,542          31,560         30,996
 Income (loss) from operations                                119              790             582        (13,762)
 Net income (loss)                                             34              365             259        (10,749)
 Basic earnings (loss) per share                          $  0.00          $  0.04         $  0.03        $ (1.26)
 Diluted earnings per share                               $  0.00          $  0.04         $  0.03           --
 -----------------------------------------------------------------------------------------------------------------
 1997
 Gross revenue                                            $31,363          $33,114         $40,764        $34,102
 Net revenue                                               27,581           24,467          29,899         27,555
 Income from operations                                     1,317            1,084           1,789            675
 Net income                                                   691              494             943             29
 Basic earnings per share                                 $  0.08          $  0.06         $  0.11        $  0.00
 Diluted earnings per share                               $  0.08          $  0.06         $  0.11        $  0.00
 -----------------------------------------------------------------------------------------------------------------
</TABLE>

Historically,  the Company's net revenue is adversely  affected in the first and
fourth quarters of each year, primarily as a result of restricted field work due
to weather conditions.

                                       38
<PAGE>

                         REPORT OF INDEPENDENT AUDITORS

The Board of Directors and Shareholders
EMCON

We have  audited the  accompanying  consolidated  balance  sheets of EMCON as of
December  31,  1997  and  1996,  and  the  related  consolidated  statements  of
operations,  shareholders' equity, and cash flows for each of the three years in
the period  ended  December  31, 1997.  Our audits also  included the  financial
statement schedule listed in the Index at Item 14(a). These financial statements
and  schedule  are  the   responsibility  of  the  Company's   management.   Our
responsibility  is to  express  an opinion  on these  financial  statements  and
schedule based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated  financial statements referred to above present
fairly, in all material respects,  the consolidated  financial position of EMCON
at December 31, 1997 and 1996,  and the  consolidated  results of its operations
and its cash flows for each of the three years in the period ended  December 31,
1997, in conformity with generally accepted accounting principles.  Also, in our
opinion,  the related financial statement schedule,  when considered in relation
to the  basic  financial  statements  taken as a whole,  presents  fairly in all
material respects the information set forth therein.

                                                               ERNST & YOUNG LLP

San Francisco, California
February 18, 1998

                                       39
<PAGE>


Item 9.       Changes in and  Disagreements  with  Accountants on Accounting and
              Financial Disclosure

None
                                    PART III


Item 10.      Directors and Executive Officers of the Registrant

       The  information  required under this Item is  incorporated  by reference
from the  Registrant's  definitive  proxy  statement for the  Registrant's  1998
Annual Meeting of Shareholders  to be filed with the Commission  within 120 days
of the end of Registrant's fiscal year ended December 31, 1997.

Item 11.      Executive Compensation

       The  information  required under this Item is  incorporated  by reference
from the  Registrant's  definitive  proxy  statement for the  Registrant's  1998
Annual Meeting of Shareholders  to be filed with the Commission  within 120 days
of the end of Registrant's fiscal year ended December 31, 1997.

Item 12.      Security Ownership of Certain Beneficial Owners and Management

       The  information  required under this Item is  incorporated  by reference
from the  Registrant's  definitive  proxy  statement for the  Registrant's  1998
Annual Meeting of Shareholders  to be filed with the Commission  within 120 days
of the end of Registrant's fiscal year ended December 31, 1997.

Item 13.      Certain Relationships and Related Transactions

       The  information  required under this Item is  incorporated  by reference
from the  Registrant's  definitive  proxy  statement for the  Registrant's  1998
Annual Meeting of Shareholders  to be filed with the Commission  within 120 days
of the end of Registrant's fiscal year ended December 31, 1997.

                                       40
<PAGE>



                                     PART IV

Item 14.  Exhibits, Financial Statement Schedules, 
          and Reports on Form 8-K                                      Page
                                                                      
(a)(1)    Financial Statements                                          18

(a)(2)    Schedule II - Valuation and Qualifying Accounts               43

(b)       Reports on Form 8-K                                           --

          No  reports  on Form 8-K were  filed  during  the  
          quarter  ended December 31, 1997.

(c)       Index to Exhibits                                             44

            Exhibits filed  herewith and attached  hereto under
            separate cover or incorporated by reference  herein
            will  be  furnished  to  security  holders  of  the
            Registrant  upon  written  request and payment of a
            fee of $.30  per page  which  fee  covers  only the
            Registrant's reasonable expenses in furnishing such
            exhibits.




                                       41
<PAGE>


                                   SIGNATURES

       Pursuant  to the  requirements  of Section 13 or 15(d) of the  Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

                                      EMCON

Dated:    3/27/97            By     /s/ Eugene M. Herson
        -----------                 --------------------
                                    Eugene M. Herson
                                    President and Chief Executive Officer

       Pursuant to the requirements of the Securities Exchange Act of 1934, this
report  has  been  signed  below  by the  following  persons  on  behalf  of the
Registrant in the capacities and on the dates indicated.

       Signature                     Title                            Date
       ---------                     -----                            ----
/s/ Douglas P. Crane       Chairman of the Board and Director     March 27, 1998
- --------------------
Douglas P. Crane

/s/ Eugene M. Herson       President, Chief Executive Officer     March 27, 1998
- --------------------       and Director (Principal Executive 
Eugene M. Herson           Officer)
                       

/s/ R. Michael Momboisse   Chief Financial Officer, 
- ------------------------   Vice President - Legal and             March 27, 1998
R. Michael Momboisse       Secretary (Principal Financial 
                           and Accounting Officer)

/s/ Donald R. Andres       Vice President and Director            March 27, 1998
- --------------------        
Donald R. Andres

/s/ Richard A. Peluso      Vice President and Director            March 27, 1998
- ---------------------
Richard A. Peluso

/s/ Donald R. Kerstetter   Director                               March 27, 1998
- ------------------------
Donald R. Kerstetter

/s/ Jack M. Marzluft       Director                               March 27, 1998
- --------------------
Jack M. Marzluft

/s/ Peter Vardy            Director                               March 27, 1998
- ---------------
Peter Vardy

                                       42
<PAGE>



                                   SCHEDULE II

                                      EMCON
                        VALUATION AND QUALIFYING ACCOUNTS

                                 (In Thousands)


<TABLE>
<CAPTION>

                                               Additions
                            Balance           Charged to                         Balance
                          at Beginning         Costs and                         at End
                           of Period           Expenses        Write-Offs       of Period
Allowance for
Doubtful Accounts:

<S>                        <C>                  <C>              <C>               <C>   
Year Ended
December 31, 1995          $  975            $  765            $  (688)         $1,052

Year Ended
December 31, 1996          $1,052            $1,985            $(2,086)         $  951

Year Ended
December 31, 1997          $  951            $1,295            $(1,317)         $  929

</TABLE>


                                       43
<PAGE>


                                INDEX TO EXHIBITS
                                                                   Sequentially
Exhibit                                                              Numbered
Number                                                                 Page
- --------------                                                     ------------
2.1       Stock Purchase Agreement dated January 30, 1996,              * 
          among Organic Waste Technologies, Inc. ("OWT"), 
          Registrant and the selling shareholders and option
          holders of OWT, incorporated by reference from 
          Exhibit 2.1 of the Current Report on Form 8-K dated 
          March 14, 1996, (the "March 1996 8-K").

2.2       Asset Purchase Agreement between Yolo Energy Partners,        *
          Inc., Yolo Landfill Gas Corporation, EMCON, Yolo Neo 
          LLC, and Minnesota Methane LLC dated December 31,
          1996, incorporated by reference from Exhibit 10.20 
          of the Annual Report on Form 10-K for the fiscal year 
          ended December 31, 1996 (the "1996 10-K").

2.3       Acquisition Agreement  between EMCON and its wholly           *
          owned subsidiary, Monterey Landfill Gas Corporation, 
          and Biomass Energy Partners V, L.P., dated March 6,
          1997, incorporated by reference from Exhibit 10.22 
          of the 1996 10-K.

2.4       Stock Purchase Agreement dated April 4, 1997 among            *
          Registrant, Columbia Analytical Services, Inc. (`CAS"),
          Northwest Trust as trustee of the CAS Employee Stock 
          Ownership Trust and certain senior management employees 
          of CAS, incorporated by reference from Exhibit 2.4 of 
          the Registrant's Quarterly Report on Form 10-Q for the 
          fiscal quarter ended March 31, 1997 (the "March 1997 
          10-Q").

2.5       Stock Purchase Agreement dated April 30, 1997 among           *
          Registrant, OWT, National Earth Products, Inc. ("NEP")
          and the selling stockholders of NEP, incorporated
          by reference from Exhibit 2.5 of the March 1997 10-Q.

3.1       Articles of Incorporation, as amended, incorporated by        *
          reference from Exhibit 3.1 of the Registrant's 
          Registration Statement on Form S-1 (File No. 
          33-16337) effective September 16, 1987 (the "Form S-1 
          Registration Statement").

3.2       Certificate of Amendment of Restated Articles of              *
          Incorporation as filed on May 24, 1988, incorporated 
          by reference from Exhibit 3.2 of the Annual Report on
          Form 10-K for the fiscal year ended December 31, 1988 
          (the "1988 10-K").

3.3       Certificate of Amendment of Restated Articles of              *
          Incorporation as filed on  June 4, 1991, incorporated 
          by reference from Exhibit 4.1 of the Quarterly Report
          on Form 10-Q for the fiscal quarter ended June 30, 
          1991 (the "June 1991 10-Q").

3.4       Bylaws, as amended, incorporated by reference from            *
          Exhibit 4.2 of the June 1991 10-Q.

                                       44
<PAGE>

                                                                    Sequentially
Exhibit                                                               Numbered
Number                  INDEX TO EXHIBITS (Continued)                  Page
- --------------                                                      ------------
10.1       EMCON  1986   Incentive   Stock   Option   Plan              *(1)
           and   Amendment, incorporated by reference
           from Exhibit 10.15 of the Form S-1 Registration 
           Statement.

10.2       Form  of  Agreement   pursuant  to  Salary                   *(1)
           Continuation   Plan, incorporated by  reference 
           from Exhibit 10.17 of the Form S-1
           Registration Statement.

10.3       Schedule identifying Agreements pursuant to Salary         48*(1)
           Continuation Plan between Registrant and certain 
           employees, incorporated by reference from Exhibit
           10.3 of the March 1997 10-Q.

10.4       Form of Indemnity Agreement between the Registrant           *
           and each of the Registrant's officers and directors, 
           incorporated by reference from Exhibit 10.20 of the
           Registrant's Annual Report on Form 10-K for the fiscal 
           year ended December 31, 1988 (the "1988 10-K").

10.5       EMCON 1988 Stock Option Plan, amended by shareholder         *(1) 
           approval on May 25,1994,    including form of  
           Nonqualified  Stock Option Agreement  (Outside  
           Directors),  incorporated  by reference from
           Exhibit 10.9 of  Registrant's  Quarterly  Report 
           on Form 10-Q for the  fiscal  quarter  ended  
           June 30,  1994 (the  "June 30,  1994 10-Q").

10.6       EMCON Employee Stock Purchase Plan incorporated by           *(1)
           reference from Exhibit 10.10 of the Registrant's 
           Quarterly Report on Form 10-Q for the fiscal quarter
           ended June 30, 1995.

10.7       EMCON Restricted Stock Plan incorporated by reference        *(1)
           from Exhibit 10.15 of the Annual Report on Form 10-K 
           for the fiscal year ended December 31, 1990.

10.8       EMCON Deferred Compensation Plan effective January 1,        *(1)
            1994, incorporated by reference from Exhibit 10.12 
           of the Registrant's Annual Report on Form 10-K for
           the fiscal year ended December 31, 1993 (the "1993 10-K").

10.9       Trust  Agreement for the EMCON Deferred Compensation         *(1)
           Plan and Salary  Continuation Plan Trust dated  
           February 19, 1994, between  Registrant and Wells 
           Fargo Bank,  N.A.  incorporated  by reference from 
           Exhibit 10.13 of the 1993 10-K.

10.10      Agreement between Eugene M. Herson and Registrant            *(1)
           dated November 30, 1995, incorporated by reference 
           from Exhibit 10.21 of Registrant's Annual Report on
           Form 10-K for the fiscal year ended December 31, 1995 
           (the "1995 10-K").


                                       45
<PAGE>



                                                                    Sequentially
Exhibit                                                               Numbered
Number               INDEX TO EXHIBITS (Continued)                     Page
- ---------                                                           ------------
10.12     Credit Agreement between The Bank of California, N.A.          *
          and Registrant dated February 29, 1996, incorporated
          by reference from Exhibit 10.2 of the March 1996 8-K.

10.13     Security Agreement between The Bank of California, N.A.        *
          and Registrant dated February 29, 1996, incorporated by 
          reference from Exhibit 10.3 of the  March 1996 8-K.

10.14     Pledge Agreement between The Bank of California, N.A.          *
          and Registrant dated February 29, 1996, incorporated 
          by reference from Exhibit 10.4 of the March 1996 8-K.

10.15     Eurodollar Rate Option Agreement between The Bank of           *
          California, N.A. and Registrant dated February 29, 
          1996, incorporated by reference from Exhibit 10.5
          of the March 1996 8-K.

10.16     Fixed Rate Amortization Option Agreement between The           *
          Bank of California, N.A. and Registrant dated February 
          29, 1996, incorporated by reference from Exhibit 10.6 
          of the March 1996 8-K.

10.17     Note Agreement among the Registrant, OWT, and certain          *
          employees of OWT, incorporated  by  reference  from 
          Exhibit 10.1 of the March 1996 8-K.

10.18     Rescission and Reformation Agreement dated effective           *
          November 1, 1996 among EMCON, OWT, and certain 
          employees of OWT, incorporated by reference from 
          Exhibit 10.18 of the 1996 10-K.

10.19     New Note Agreement dated effective November 1, 1996            *
          among EMCON, OWT and certain employees of OWT,  
          incorporated  by  reference from Exhibit 10.19 of 
          the 1996 10-K.

10.20     Second Amendment to Credit Agreement dated effective           *
          January 27, 1997 among EMCON and Union Bank of
          California, N.A. (formerly known as The Bank of
          California, N.A.), incorporated by reference from 
          Exhibit 10.21 of the 1996 10-K.

10.21     Third Amendment to Credit Agreement dated effective            *
          March 27, 1997 among EMCON and Union Bank of California, 
          N.A. (formerly known as The Bank of California,
          N.A.), incorporated by reference from Exhibit 10.23 
          of the 1996 10-K.

10.22     Convertible Notes dated April 30, 1997 issued by EMCON         *
          to Dennis Grimm and Charles Gearhart in the principal 
          amounts of $400,798.40 and $399,201.60, respectively, 
          incorporated by reference from Exhibit 10.22 of the 
          March 1997 10-Q.

                                       46
<PAGE>



                                                                    Sequentially
Exhibit                                                               Numbered
Number                      INDEX TO EXHIBITS (Continued                Page
- --------------                                                      ------------

10.23     Lease Agreement dated April 4, 1997, between EMCON              *
          and Columbia Analytical Services, Inc., incorporated
          by reference from Exhibit 10.23 of the March 1997
          10-Q.

10.24     Amendment 1997-I to EMCON Deferred Compensation Plan            *(1)
          dated effective February 22, 1997, incorporated by 
          reference from Exhibit 10.24 of the Registrant's
          Quarterly Report on Form 10-Q for the fiscal quarter 
          ended June 30, 1997 (the "June 30, 1997 10-Q").

10.25     Fourth Amendment to Credit Agreement dated effective            *
          June 24, 1997 among EMCON and Union Bank of California, 
          N.A., incorporated by reference from Exhibit 10.25
          of the June 30, 1997 10-Q.

10.26     Amended and Restated Agreement between Eugene M.              49*
          Herson and Registrant dated November 3, 1997.

10.27     Amended and  Restated  Agreement  between R.                  56*
          Michael   Momboisse  and  Registrant   dated
          November 3, 1997.
 
10.28     Deferred Compensation Plan, Amended and Restated              63*
          effective January 1, 1998.  
             
 27       Financial Data Schedule, included herein.                     91

* Incorporated  by reference 
(1) Management contract or compensatory plan or arrangement required to be filed
as an exhibit to this form  pursuant to Item 14(c) of the  instructions  to Form
10-K.

                                       47




                                  EXHIBIT 10.3

                                      EMCON
                      SALARY CONTINUATION PLAN PARTICIPANTS


                                  Monthly Payments
                          ------------------------------
                             Salary                           Date Payments
          Participant     Continuation     Non-compete          Commence
- --------------------------------------------------------------------------------

Thorley D. Briggs            $1,800          $1,200       January          1993
                             $1,200          $  800       July             1993
John G. Pacey                  -0-           $1,080       January          1993
Donald R. Andres             $1,800          $1,200       January          1993
Richard J. Leach               -0-           $  819       January          1993
Fred W. Cope                 $  600          $  400       January          1994
Robert E. Van Heuit            -0-           $  400       January          1994
H. Randolph Sweet            $1,350          $  900       April            1997
Eugene M. Herson             $1,800          $1,200       November         2000
                             $2,700          $1,800       November         2004
R. Michael Momboisse         $  600          $  400       January          2003
                             $1,200          $  800       November         2004
                             $  600          $  400       November         2006
                             $  600          $  400       July             2007
Gary O. McEntee              $  600          $  400       November         2004



                                       48




                                  EXHIBIT 10.26

                              AMENDED AND RESTATED
                                    AGREEMENT


         THIS AGREEMENT  ("Agreement")  is made as of November 3, 1997,  between
EMCON, A California  corporation,  (the "Company"),  and Eugene M. Herson,  (the
"Employee").  Unless otherwise indicated,  certain of the capitalized terms used
herein are defined in Exhibit A and shall have the meaning as assigned.

                                    RECITALS

         A. The Company  recognizes  that the possibility of a Change of Control
Event  exists and that the  Employee  possesses  an  intimate  knowledge  of the
Company. The Board of Directors of the Company (the "Board") believes that it is
necessary  that the Company be able to call on the  Employee for advice upon the
occurrence  of a Change of  Control  Event.  The Board  also  believes  that the
existence of this  Agreement  will enhance the Company's  ability to call on and
rely upon such Employee.

         B. The Company and the Employee  desire to enter into this Agreement in
order to  provide  additional  compensation  and  benefits  to the  Employee  in
recognition  of past services and to encourage  Employee to continue  employment
with the Employer.

         C. It is intended by the parties that the  provisions  of  paragraphs 2
and 3 of this Agreement shall be effective during the eighteen (18) month period
following a Change of Control Event.

                                    AGREEMENT

         NOW, THEREFORE,  for good and valuable consideration,  receipt of which
is hereby acknowledged, the Company and Employee agree as follows:

         1. Term:  Operation of Agreement.  Except as provided in paragraph 1(a)
below, this Agreement shall be effective immediately, and, except as provided in
paragraph 1(b) below,  shall terminate on the eighteenth (18) month  anniversary
following any Change of Control Event.

                  (a) The provisions of paragraphs (2) and (3) of this Agreement
shall not become  effective  unless  (i) there is a Change of Control  Event and
(ii) the Employee is employed by the Company  immediately prior to the Change of
Control Event.  Notwithstanding the foregoing, if the Employee's employment with
the  Company  is  terminated  within  the  ninety  (90) day  period  immediately
preceding a Change of Control Event and such termination  would have constituted
a  Termination  as defined in Exhibit A if  termination  had occurred  after the
Change of Control Event, the termination will be deemed to have occurred the day
after the  Change  of  Control  Event,  such  that  paragraphs  2 and 3 shall be
effective as to such termination.

                  (b) This  Agreement  shall  terminate on the first to occur of
                      the following:

                                       49

<PAGE>

                       (i)   The termination  of the Employee's employment with 
the Company prior to a Change of Control Event unless such termination is deemed
to occur the day after such Change of Control  Event as  provided  in  paragraph
1(a) above.

                       (ii)  Subject to the provisions of paragraph 3(f) below,
the termination of the Employee's employment following a Change of Control Event
is due to any of the following:  (a) termination by the Company with Cause,  (b)
death of the Employee, (c) Permanent Disability of the Employee or (d) voluntary
termination of employment by the Employee without Good Reasons.

         2. Service.  Once a Change of Control Event occurs,  the Employee shall
not voluntarily terminate his employment with the Company until ninety (90) days
after such Event has occurred.  Following a Change of Control Event, the Company
shall not  terminate  the  Employee's  employment  with the  Company,  except in
accordance  with this  Agreement  and the  Company  shall  provide not less than
ninety (90) days prior written notice of such Termination to the Employee.

     3. Payments and Benefits Upon  Termination.  The Employee shall be entitled
to the following payments and benefits following Termination:

                  (a)  Termination  Payment.  The Company shall pay the Employee
within ten (10) days of the date of  Termination  an amount  equal to the sum of
twenty-four  (24) months cash  salary and a prorated  cash bonus,  if earned and
otherwise due.
                  (b)  Welfare Plan Benefits.  The Employee shall be entitled to
continuation of medical insurance  coverage under the Company's  Continuation of
Benefits  Program for Former Senior  Executives  (originally  implemented by the
Company on January 1, 1993). The Company shall pay the cost of medical insurance
coverage for a period equal to the lesser of (i)  twenty-four  months  following
the date of  Termination  or (ii)  until the  Employee  is  provided  by another
employer with medical insurance benefits.  The Employee shall notify the Company
within ten (10) days of any  employment  by the  Employee  during the period the
Company is paying for medical  insurance  coverage  pursuant  to this  paragraph
3(b).
                  (c)  Vesting of Benefits.  Employee  shall become  immediately
vested  in  full  in  any  and  all  employment  benefits,   including,  without
limitation:
                           (i)   Employee's interest in the EMCON Shared Savings
and Profit Sharing Plan,  including the Company match portion;  provided that if
such action is found to be a  violation  of ERISA,  the  Company  shall have the
option of instead  paying the Employee an amount which after taking  account for
applicable withholding, equals the unvested balance of the Company match portion
of the Employees account.

                           (ii)   all amounts payable as salary continuation and
noncompetition  payments under the salary  continuation  agreements  between the
Employee and the Company  dated  November  1990,  November  1994 and November 9,
1996,  as well as any  similar  agreements  that have been or may  hereafter  be
entered into between Employee and the Company;  provided that (A) the portion of
such payments representing salary continuation payments shall be immediately due
and payable upon full vesting and (B) the portion of such payments  representing
noncompetition  payments shall be paid to Employee in equal monthly installments
over a three-year  period commencing from the date of departure from the Company


                                       50
<PAGE>

and for so long during the subsequent  three-year  period as the Employee is not
employed by a competitor or potential competitor of the Company. For purposes of
the  foregoing,  a competitor  or potential  competitor  of the Company shall be
defined as an environmental engineering,  consulting or construction company not
affiliated with the Company.

                           (iii)  all incentive and non-qualified stock options 
to purchase the Company's (or its successor's) capital stock, and

                           (iv)     all restricted stock agreements.

                  (d) Continued Right to Exercise Options. Employee shall retain
the right to exercise all of the incentive and  nonqualified  stock options held
by Employee and referred to in paragraph  3(c)(iii)  above for a period of up to
three years after  Employee's  departure from the Company or, if earlier,  until
expiration of the original term of the  respective  option  agreements,  and for
these purposes Employee shall be considered a continuing employee of EMCON.

                  (e) No  Mitigation.  All  payments  and  benefits to which the
Employee is entitled  under this  Agreement  shall be made and provided  without
offset,  deduction or  mitigation  on account of income the Employee may receive
from other employment or otherwise, except as provided in paragraph 3(b) above.

                  (f)  Death of the  Employee.  In the  event of the  Employee's
death  subsequent  to  Termination,  all payments and benefits  required by this
Agreement   shall  be  paid  to  the   Employee's   designated   beneficiary  or
beneficiaries  or, if he has not designated a beneficiary or  beneficiaries,  to
his estate.

         4. Arbitration.  Any claim, dispute or controversy arising out of or in
any way relating to the parties'  employment  relationship  (including,  but not
limited  to,  any  claims  of  wrongful   termination   or  age,  sex  or  other
discrimination),  this Agreement,  the  interpretation  of this Agreement or the
alleged breach thereof shall be submitted by the parties to binding  arbitration
by the  American  Arbitration  Association  in  San  Mateo  County,  California;
provided,  however,  that  this  arbitration  provision  shall  not apply to any
disputes or claims relating to or arising out of the misuse or  misappropriation
of the Company's trade secrets or confidential and proprietary information.

         5.  Conflict in  Benefits.  This  Agreement  amends and  restates  that
certain  Agreement  between the Employee and the Company dated November 30, 1995
and shall supersede all other prior  arrangements,  whether written or oral, and
understandings  regarding  the  subject  matter  of  this  Agreement;  provided,
however,  that this Agreement is not intended to and shall not affect,  limit or
terminate  (i) any plans,  programs,  or  arrangements  of the company  that are
either in  writing  or  regularly  made  available  to a  significant  number of
employees of the Company,  (ii) any agreement or  arrangement  with the Employee
that has been  reduced  to  writing,  or (iii) any  agreements  or  arrangements
hereafter entered into by the parties in writing.


                                       51
<PAGE>


         6.       Miscellaneous.

                  (a) Notices. Any notice or other communication provided for in
this Agreement or contemplated  hereby shall be  sufficiently  given if given in
writing and personally  delivered or delivered by certified mail, return receipt
requested, and addressed, in the case of the Company, to the Company at:

                           EMCON
                           400 S. El Camino Real, Suite 1200
                           San Mateo, CA  94402
                           Attn:  Chairman of the Board

and, in the case of the Employee, to the Employee at:

                           Eugene M. Herson
                           501 El Camino Del Mar
                           San Francisco, CA  94121

Either  party may  designate a  different  address by giving  written  notice of
change of address in the manner provided above.

                  (b) Waiver.  No waiver or  modification in whole or in part of
this Agreement,  or any term or condition hereof, shall be effective against any
party  unless in writing  and duly signed by the party  sought to be bound.  Any
waiver of any breach of any provision  hereof or any right or power by any party
on one occasion shall not be construed as a waiver of, or a bar to, the exercise
of such right or power on any other  occasion  or as a waiver of any  subsequent
breach.

                  (c)  Binding  Effect;  Successors.  This  Agreement  shall  be
binding upon,  inure to the benefit of, and be  enforceable  by, the Company and
the Employee and their respective heirs, legal  representatives,  successors and
assigns.  For purposes of the  foregoing,  the  successors  to the Company shall
include,  without  limitation,   successors  (whether  direct  or  indirect,  by
purchase,  merger,  consolidation,  or otherwise) to all or substantially all of
the  business or assets of the Company (a "Company  Successor").  If the Company
shall be merged into or consolidated with another entity, the provisions of this
Agreement shall be binding upon and inure to the benefit of the entity surviving
such  merger  or  resulting  from such  consolidation.  The  provisions  of this
paragraph  6(c)  shall  continue  to apply to each  subsequent  employer  of the
Employee  hereunder  in the event of any  subsequent  merger,  consolidation  or
transfer or assets of such subsequent employer.

                  (d)  Separability.  Any provision of this  Agreement  which is
unenforceable  or  invalid  in any  jurisdiction  shall be  ineffective  in such
jurisdiction to the extent that it is unenforceable or invalid without affecting
the remaining  provisions hereof, which shall continue in full force and effect.
The  unenforceability  or  invalidity  of a provision  of this  Agreement in one
jurisdiction shall not invalidate or render  unenforceable such provision in any
other jurisdiction.

                  (e)  Controlling  Law. This Agreement shall be governed by and
construed in accordance  with the laws of the State of California  applicable to
contracts made and to be performed therein.

                                       52

<PAGE>

         IN WITNESS  WHEREOF,  the Company and the Employee  have  executed this
Agreement as of the day and year first above written.

                                    COMPANY:
                                    EMCON, a California Corporation



                                    By: /s/ Douglas P. Crane 
                                        ---------------------------------------
                                        Douglas P. Crane, Chairman of the Board


                                    EMPLOYEE:



                                    By:  /s/ Eugene M. Herson
                                         Eugene M. Herson


                                       53
<PAGE>


                                    EXHIBIT A
                                   DEFINITIONS

         As used in this Agreement,  and unless the context requires a different
meaning, the following terms mean:

         (i)  "Cause"  means  (a)  theft,  dishonesty  or  falsification  of any
employment  or  Company  records;  (b)  improper  disclosure  of  the  Company's
confidential  or proprietary  information;  (c) any  intentional act by Employee
which has a material detrimental effect on the Company's reputation or business;
or (d) failure to perform any reasonable  assigned duties,  which failure is not
cured within thirty (30) days following  written notice of such failure from the
Company.

         (ii) "Change of Control  Event" means an Ownership  Change of which the
shareholders of the Company before such Ownership Change do not retain, directly
or indirectly, at least seventy percent (70%) of the beneficiary interest in the
voting stock of the Company  after such  transaction  or in which the Company is
not the surviving corporation.

         (iii) An  "Ownership  Change"  shall be deemed to have  occurred in the
event any of the following events occurs with respect to the Company;

                  A. the direct or indirect sale or exchange by the shareholders
of the Company of all or substantially all of the stock of the Company;

                  B. a merger or consolidation in which the Company is a party;

                  C. the sale, exchange, or transfer of all or substantially all
of the assets of the Company; or

                  D. a liquidation or dissolution of the Company.

         (iv) A voluntary  termination  of  employment by the Employee for "Good
Reasons"  means a termination  of employment  following:  (a) a Deemed  Demotion
which  results  without  the  Employee's   express  written  consent  and  which
continues,  for a period of twenty (20) days after written notice thereof to the
Company  from the Employee  with a "Deemed  Demotion"  being  defined as (i) the
assignment to the Employee of any duties,  or any  limitation of the  Employee's
responsibilities,   inconsistent   with  the   Employee's   positions,   duties,
responsibilities  and status with the Company  immediately  prior to the date of
the  Change  of  Control  Event,  or (ii) a  removal  of the  Employee  from the
Employee's  position with the Company held by the Employee in contemplation of a
Change of  Control  Event,  except in  connection  with the  termination  of the
employment  of the Employee by the Company for Cause or as a result of the death
or Permanent Disability of the Employee;  (b) any failure by the Company to pay,
or any reduction by the Company of, the  Employee's  base annual salary or bonus
compensation  in effect  immediately  prior to the date of the Change of Control
Event;  (c) any failure by the Company to (i)  continue to provide the  Employee
with the  opportunity to  participate,  on terms no less favorable than those in
effect  immediately  prior to the date of the  Change of Control  Event,  in any
benefit plans and programs,  including,  but not limited to, the Company's life,
disability, health, dental, medical, bonus savings and retirement plans in which

                                       54
<PAGE>

the Employee was  participating  immediately  prior to the date of the Change of
Control Event, or their equivalent,  or (ii) provide the Employee with all other
fringe  benefits  (or their  equivalent)  from  time to time in  effect  for the
benefit of any executive,  management or administrative  group which customarily
includes a person holding the employment  position with the Company then held by
the Employee; (d) without the Employee's express written consent, the relocation
of the principal  place of the Employee's  employment to a location that is more
than 20  miles  further  from  the  Employee's  principal  residence  than  such
principal  place of  employment  immediately  prior to the date of the Change of
Control  Event,  or the  imposition of travel  requirements  on the Employee not
substantially  consistent with normal  day-to-day travel  requirements  existing
immediately  prior to the date of the Change of Control  Event and/or (e) a good
faith determination by the Employee, in his sole judgment, that the continuation
of the Employee's employment with the company is no longer in the best interests
of the Company.

         (iv) "Permanent Disability" means, as applied to the Employee, that (a)
he has been  totally  incapacitated  by  bodily  injury or  disease  so as to be
prevented thereby from engaging in any occupation or employment for remuneration
or profit,  (b) such total  incapacity  shall have continued for a period of six
consecutive  months  and (c) such total  incapacity  will,  in the  opinion of a
qualified  physician,  be permanent and  continuous  during the remainder of the
Employee's life.

         (v)  "Termination"  means  any  termination  of the  employment  of the
Employee following the occurrence of any Change of Control Event, by the Company
without  Cause or by the  Employee  for Good  Reason;  provided,  however,  that
"Termination"  shall  not  include  any  termination  of the  employment  of the
Employee  (a) by the  Company  as a result of the  Permanent  Disability  of the
Employee or (b) as a result of the death of the Employee.



                                       55




                                  EXHIBIT 10.27

                              AMENDED AND RESTATED
                                    AGREEMENT


         THIS AGREEMENT  ("Agreement")  is made as of November 3, 1997,  between
EMCON, A California corporation, (the "Company"), and R. Michael Momboisse, (the
"Employee").  Unless otherwise indicated,  certain of the capitalized terms used
herein are defined in Exhibit A and shall have the meaning as assigned.

                                    RECITALS

         A. The Company  recognizes  that the possibility of a Change of Control
Event  exists and that the  Employee  possesses  an  intimate  knowledge  of the
Company. The Board of Directors of the Company (the "Board") believes that it is
necessary  that the Company be able to call on the  Employee for advice upon the
occurrence  of a Change of  Control  Event.  The Board  also  believes  that the
existence of this  Agreement  will enhance the Company's  ability to call on and
rely upon such Employee.

         B. The Company and the Employee  desire to enter into this Agreement in
order to  provide  additional  compensation  and  benefits  to the  Employee  in
recognition  of past services and to encourage  Employee to continue  employment
with the Employer.

         C. It is intended by the parties that the  provisions  of  paragraphs 2
and 3 of this Agreement shall be effective during the eighteen (18) month period
following a Change of Control Event.

                                    AGREEMENT

         NOW, THEREFORE,  for good and valuable consideration,  receipt of which
is hereby acknowledged, the Company and Employee agree as follows:

         1. Term:  Operation of Agreement.  Except as provided in paragraph 1(a)
below, this Agreement shall be effective immediately, and, except as provided in
paragraph 1(b) below,  shall terminate on the eighteenth (18) month  anniversary
following any Change of Control Event.

                  (a) The provisions of paragraphs (2) and (3) of this Agreement
shall not become  effective  unless  (i) there is a Change of Control  Event and
(ii) the Employee is employed by the Company  immediately prior to the Change of
Control Event.  Notwithstanding the foregoing, if the Employee's employment with
the  Company  is  terminated  within  the  ninety  (90) day  period  immediately
preceding a Change of Control Event and such termination  would have constituted
a  Termination  as defined in Exhibit A if  termination  had occurred  after the
Change of Control Event, the termination will be deemed to have occurred the day
after the  Change  of  Control  Event,  such  that  paragraphs  2 and 3 shall be
effective as to such termination.

                  (b)      This Agreement shall terminate on the first to occur
of the following:

                                       56

<PAGE>

                           (i)      The termination of the Employee's employment
with the Company prior to a Change of Control Event unless such  termination  is
deemed to occur the day  after  such  Change of  Control  Event as  provided  in
paragraph 1(a) above.

                           (ii)     Subject to the provisions of paragraph 3(f) 
below,  the  termination  of the  Employee's  employment  following  a Change of
Control Event is due to any of the  following:  (a)  termination  by the Company
with Cause, (b) death of the Employee,  (c) Permanent Disability of the Employee
or (d) voluntary termination of employment by the Employee without Good Reasons.

         2. Service.  Once a Change of Control Event occurs,  the Employee shall
not voluntarily terminate his employment with the Company until ninety (90) days
after such Event has occurred.  Following a Change of Control Event, the Company
shall not  terminate  the  Employee's  employment  with the  Company,  except in
accordance  with this  Agreement  and the  Company  shall  provide not less than
ninety (90) days prior written notice of such Termination to the Employee.

         3.       Payments and Benefits Upon Termination.  The Employee shall be
entitled to the following payments and benefits following Termination:

                  (a)  Termination  Payment.  The Company shall pay the Employee
within ten (10) days of the date of  Termination  an amount  equal to the sum of
twenty-four  (24) months cash  salary and a prorated  cash bonus,  if earned and
otherwise due.

                  (b) Welfare Plan  Benefits.  The Employee shall be entitled to
continuation of medical insurance  coverage under the Company's  Continuation of
Benefits  Program for Former Senior  Executives  (originally  implemented by the
Company on January 1, 1993). The Company shall pay the cost of medical insurance
coverage for a period equal to the lesser of (i)  twenty-four  months  following
the date of  Termination  or (ii)  until the  Employee  is  provided  by another
employer with medical insurance benefits.  The Employee shall notify the Company
within ten (10) days of any  employment  by the  Employee  during the period the
Company is paying for medical  insurance  coverage  pursuant  to this  paragraph
3(b).

                  (c) Vesting of Benefits.  Employee  shall  become  immediately
vested  in  full  in  any  and  all  employment  benefits,   including,  without
limitation:

                           (i)  Employee's interest in the EMCON Shared Savings 
and Profit Sharing Plan, including the Company match portion; provided that if 
such action is found to be a violation of ERISA,  the Company  shall have the 
option of instead  paying the Employee an amount which after taking account for 
applicable withholding, equals the unvested balance of the Company match portion
of the Employees account.

                           (ii)  all amounts payable as salary continuation and 
noncompetition payments under the salary  continuation  agreements  between the
Employee  and the  Company  dated January  1993,  November  1994;  and  November
9, 1996,  as well as any similar agreements that have been or may hereafter be 
entered into between  Employee and the Company;  provided that (A) the portion 
of such payments representing salary continuation payments shall be immediately

                                       57

<PAGE>

due  and  payable  upon  full  vesting  and  (B) the  portion  of such  payments
representing  noncompetition payments shall be paid to Employee in equal monthly
installments over a three-year period commencing from the date of departure from
the  Company  and for so long  during the  subsequent  three-year  period as the
Employee is not employed by a competitor or potential competitor of the Company.
For purposes of the  foregoing,  a competitor  or  potential  competitor  of the
Company  shall  be  defined  as  an  environmental  engineering,  consulting  or
construction  company not affiliated  with the Company.  (iii) all incentive and
non-qualified  stock  options to purchase  the  Company's  (or its  successor's)
capital stock, and

                           (iv)   all restricted stock agreements.

                  (d) Continued Right to Exercise Options. Employee shall retain
the right to exercise all of the incentive and  nonqualified  stock options held
by Employee and referred to in paragraph  3(c)(iii)  above for a period of up to
three years after  Employee's  departure from the Company or, if earlier,  until
expiration of the original term of the  respective  option  agreements,  and for
these purposes Employee shall be considered a continuing employee of EMCON.

                  (e) No  Mitigation.  All  payments  and  benefits to which the
Employee is entitled  under this  Agreement  shall be made and provided  without
offset,  deduction or  mitigation  on account of income the Employee may receive
from other employment or otherwise, except as provided in paragraph 3(b) above.

                  (f)  Death of the  Employee.  In the  event of the  Employee's
death  subsequent  to  Termination,  all payments and benefits  required by this
Agreement   shall  be  paid  to  the   Employee's   designated   beneficiary  or
beneficiaries  or, if he has not designated a beneficiary or  beneficiaries,  to
his estate.

         4. Arbitration.  Any claim, dispute or controversy arising out of or in
any way relating to the parties'  employment  relationship  (including,  but not
limited  to,  any  claims  of  wrongful   termination   or  age,  sex  or  other
discrimination),  this Agreement,  the  interpretation  of this Agreement or the
alleged breach thereof shall be submitted by the parties to binding  arbitration
by the  American  Arbitration  Association  in  San  Mateo  County,  California;
provided,  however,  that  this  arbitration  provision  shall  not apply to any
disputes or claims relating to or arising out of the misuse or  misappropriation
of the Company's trade secrets or confidential and proprietary information.

         5.  Conflict in  Benefits.  This  Agreement  amends and  restates  that
certain  Agreement  between the Employee and the Company dated November 30, 1995
and shall supersede all other prior  arrangements,  whether written or oral, and
understandings  regarding  the  subject  matter  of  this  Agreement;  provided,
however,  that this Agreement is not intended to and shall not affect,  limit or
terminate  (i) any plans,  programs,  or  arrangements  of the company  that are
either in  writing  or  regularly  made  available  to a  significant  number of
employees of the Company,  (ii) any agreement or  arrangement  with the Employee
that has been  reduced  to  writing,  or (iii) any  agreements  or  arrangements
hereafter entered into by the parties in writing.


                                       58
<PAGE>


         6.       Miscellaneous.

                  (a) Notices. Any notice or other communication provided for in
this Agreement or contemplated  hereby shall be  sufficiently  given if given in
writing and personally  delivered or delivered by certified mail, return receipt
requested, and addressed, in the case of the Company, to the Company at:

                           EMCON
                           400 S. El Camino Real, Suite 1200
                           San Mateo, CA  94402
                           Attn:  Chairman of the Board

and, in the case of the Employee, to the Employee at:

                           R. Michael Momboisse
                           1920 Polk Court
                           Mountain View, CA  94040

Either  party may  designate a  different  address by giving  written  notice of
change of address in the manner provided above.

                  (b) Waiver.  No waiver or  modification in whole or in part of
this Agreement,  or any term or condition hereof, shall be effective against any
party  unless in writing  and duly signed by the party  sought to be bound.  Any
waiver of any breach of any provision  hereof or any right or power by any party
on one occasion shall not be construed as a waiver of, or a bar to, the exercise
of such right or power on any other  occasion  or as a waiver of any  subsequent
breach.

                  (c)  Binding  Effect;  Successors.  This  Agreement  shall  be
binding upon,  inure to the benefit of, and be  enforceable  by, the Company and
the Employee and their respective heirs, legal  representatives,  successors and
assigns.  For purposes of the  foregoing,  the  successors  to the Company shall
include,  without  limitation,   successors  (whether  direct  or  indirect,  by
purchase,  merger,  consolidation,  or otherwise) to all or substantially all of
the  business or assets of the Company (a "Company  Successor").  If the Company
shall be merged into or consolidated with another entity, the provisions of this
Agreement shall be binding upon and inure to the benefit of the entity surviving
such  merger  or  resulting  from such  consolidation.  The  provisions  of this
paragraph  6(c)  shall  continue  to apply to each  subsequent  employer  of the
Employee  hereunder  in the event of any  subsequent  merger,  consolidation  or
transfer or assets of such subsequent employer.

                  (d)  Separability.  Any provision of this  Agreement  which is
unenforceable  or  invalid  in any  jurisdiction  shall be  ineffective  in such
jurisdiction to the extent that it is unenforceable or invalid without affecting
the remaining  provisions hereof, which shall continue in full force and effect.
The  unenforceability  or  invalidity  of a provision  of this  Agreement in one
jurisdiction shall not invalidate or render  unenforceable such provision in any
other jurisdiction.

                  (e)  Controlling  Law. This Agreement shall be governed by and
construed in accordance  with the laws of the State of California  applicable to
contracts made and to be performed therein.

                                       59
<PAGE>

         IN WITNESS  WHEREOF,  the Company and the Employee  have  executed this
Agreement as of the day and year first above written.

                                    COMPANY:
                                    EMCON, a California Corporation



                                    By: /s/ Douglas P. Crane 
                                        ---------------------------------------
                                        Douglas P. Crane, Chairman of the Board


                                    EMPLOYEE:



                                    By: /s/ R. Michael Momboisse
                                        ------------------------
                                        R. Michael Momboisse


                                       60
<PAGE>


                                    EXHIBIT A
                                   DEFINITIONS

         As used in this Agreement,  and unless the context requires a different
meaning, the following terms mean:

         (i)  "Cause"  means  (a)  theft,  dishonesty  or  falsification  of any
employment  or  Company  records;  (b)  improper  disclosure  of  the  Company's
confidential  or proprietary  information;  (c) any  intentional act by Employee
which has a material detrimental effect on the Company's reputation or business;
or (d) failure to perform any reasonable  assigned duties,  which failure is not
cured within thirty (30) days following  written notice of such failure from the
Company.

         (ii) "Change of Control  Event" means an Ownership  Change of which the
shareholders of the Company before such Ownership Change do not retain, directly
or indirectly, at least seventy percent (70%) of the beneficiary interest in the
voting stock of the Company  after such  transaction  or in which the Company is
not the surviving corporation.

         (iii) An  "Ownership  Change"  shall be deemed to have  occurred in the
event any of the following events occurs with respect to the Company;

                  A.       the direct or indirect sale or exchange by the 
shareholders of the Company of all or substantially all of the stock of the 
Company;

                  B.       a merger or consolidation in which the Company is a 
party;

                  C.       the sale, exchange, or transfer of all or 
substantially all of the assets of the Company; or

                  D.       a liquidation or dissolution of the Company.

         (iv) A voluntary  termination  of  employment by the Employee for "Good
Reasons"  means a termination  of employment  following:  (a) a Deemed  Demotion
which  results  without  the  Employee's   express  written  consent  and  which
continues,  for a period of twenty (20) days after written notice thereof to the
Company  from the Employee  with a "Deemed  Demotion"  being  defined as (i) the
assignment to the Employee of any duties,  or any  limitation of the  Employee's
responsibilities,   inconsistent   with  the   Employee's   positions,   duties,
responsibilities  and status with the Company  immediately  prior to the date of
the  Change  of  Control  Event,  or (ii) a  removal  of the  Employee  from the
Employee's  position with the Company held by the Employee in contemplation of a
Change of  Control  Event,  except in  connection  with the  termination  of the
employment  of the Employee by the Company for Cause or as a result of the death
or Permanent Disability of the Employee;  (b) any failure by the Company to pay,
or any reduction by the Company of, the  Employee's  base annual salary or bonus
compensation  in effect  immediately  prior to the date of the Change of Control
Event;  (c) any failure by the Company to (i)  continue to provide the  Employee
with the  opportunity to  participate,  on terms no less favorable than those in
effect  immediately  prior to the date of the  Change of Control  Event,  in any
benefit plans and programs,  including,  but not limited to, the Company's life,
disability, health, dental, medical, bonus savings and retirement plans in which
the Employee was  participating  immediately  prior to the date of the Change of

                                       61

<PAGE>

Control Event, or their equivalent,  or (ii) provide the Employee with all other
fringe  benefits  (or their  equivalent)  from  time to time in  effect  for the
benefit of any executive,  management or administrative  group which customarily
includes a person holding the employment  position with the Company then held by
the Employee; (d) without the Employee's express written consent, the relocation
of the principal  place of the Employee's  employment to a location that is more
than 20  miles  further  from  the  Employee's  principal  residence  than  such
principal  place of  employment  immediately  prior to the date of the Change of
Control  Event,  or the  imposition of travel  requirements  on the Employee not
substantially  consistent with normal  day-to-day travel  requirements  existing
immediately  prior to the date of the Change of Control  Event and/or (e) a good
faith determination by the Employee, in his sole judgment, that the continuation
of the Employees  employment with the company is no longer in the best interests
of the Company.

         (iv) "Permanent Disability" means, as applied to the Employee, that (a)
he has been  totally  incapacitated  by  bodily  injury or  disease  so as to be
prevented thereby from engaging in any occupation or employment for remuneration
or profit,  (b) such total  incapacity  shall have continued for a period of six
consecutive  months  and (c) such total  incapacity  will,  in the  opinion of a
qualified  physician,  be permanent and  continuous  during the remainder of the
Employee's life.

         (v)  "Termination"  means  any  termination  of the  employment  of the
Employee following the occurrence of any Change of Control Event, by the Company
without  Cause or by the  Employee  for Good  Reason;  provided,  however,  that
"Termination"  shall  not  include  any  termination  of the  employment  of the
Employee  (a) by the  Company  as a result of the  Permanent  Disability  of the
Employee or (b) as a result of the death of the Employee.



                                       62




                                  EXHIBIT 10.28








                      Amended and Restated in its entirety.


                            Effective January 1, 1998


















                               Copyright (C) 1997
                      By Compensation Resource Group, Inc.
                               All Rights Reserved



                                       63
<PAGE>




TABLE OF CONTENTS
                                                                           Page

Purpose                                                                     67

ARTICLE 1     Definitions                                                   67

ARTICLE 2     Selection, Enrollment, Eligibility                            72
              2.1     Selection by Committee                                72
              2.2     Enrollment Requirements                               72
              2.3     Eligibility; Commencement of Participation            72
              2.4     Termination of Participation and/or Deferrals         72

ARTICLE 3     Deferral Commitments/Company Matching/Crediting Taxes         73
              3.1     Minimum Deferrals                                     73
              3.2     Maximum Deferral                                      73
              3.3     Election to Defer; Effect of Election Form            74
              3.4     Withholding of Annual Deferral Amounts                74
              3.5     Discretionary Company Contribution Amount             74
              3.6     Investment of Trust Assets                            74
              3.7     Vesting                                               74
              3.8     Crediting/Debiting of Account Balances                75
              3.9     FICA and Other Taxes                                  76
              3.10    Distributions                                         76
              4.1     Short-Term Payout                                     76
              4.2     Other Benefits Take Precedence Over Short-Term        77
              4.3     Withdrawal Payout/Suspensions for Unforeseeable 
                      Financial Emergencies                                 77
              4.4     Withdrawal Election                                   77

ARTICLE 5     Retirement Benefit                                            77
              5.1     Retirement Benefit                                    77
              5.2     Payment of Retirement Benefit                         77
              5.3     Death Prior to Completion of Retirement 
                      Benefit                                               78

ARTICLE 6     Pre-Retirement Survivor Benefit                               78
              6.1     Pre-Retirement Survivor Benefit                       78
              6.2     Payment of Pre-Retirement Survivor Benefit            78

ARTICLE 7     Termination Benefit                                           78
              7.1     Termination Benefit                                   78
              7.2     Payment of Termination Benefit                        79

ARTICLE 8     Disability Waiver and Benefit                                 79
              8.1     Disability Waiver                                     79
              8.2     Continued Eligibility; Disability Benefit             70

                                       64

<PAGE>

ARTICLE 9     Beneficiary Designation                                       80
              9.1     Beneficiary                                           80
              9.2     Beneficiary Designation; Change; Spousal Consent      80
              9.3     Acknowledgement                                       80
              9.4     No Beneficiary Designation                            80
              9.5     Doubt as to Beneficiary                               80
              9.6     Discharge of Obligations                              80

ARTICLE 10     Leave of Absence                                             81
              10.1    Paid Leave of Absence                                 81
              10.2    Unpaid Leave of Absence                               81

ARTICLE 11    Termination, Amendment or Modification                        81
              11.1    Termination                                           81
              11.2    Amendment                                             82
              11.3    Plan Agreement                                        82
              11.4    Effect of Payment                                     82

ARTICLE 12    Administration                                                82
              12.1    Committee Duties                                      82
              12.2    Agents                                                82
              12.3    Binding Effect of Decisions                           82
              12.4    Indemnity of Committee                                83
              12.5    Employer Information                                  83

ARTICLE 13    Other Benefits and Agreements                                 83
              13.1    Coordination with Other Benefits                      83

ARTICLE 14    Claims Procedures                                             83
              14.1    Presentation of Claim                                 83
              14.2    Notification of Decision                              83
              14.3    Review of a Denied Claim                              84
              14.4    Decision on Review                                    84
              14.5    Legal Action                                          84

ARTICLE 15    Trust                                                         84
              15.1    Establishment of the Trust                            84
              15.2    Interrelationship of the Plan and the Trust           85
              15.3    Distributions From the Trust                          85


                                       65
<PAGE>



ARTICLE 16    Miscellaneous                                                 85
              16.1    Status of Plan                                        85
              16.2    Unsecured General Creditor                            85
              16.3    Employer's Liability                                  85
              16.4    Nonassignability                                      85
              16.5    Not a Contract of Employment                          85
              16.6    Furnishing Information                                86
              16.7    Terms                                                 86
              16.8    Captions                                              86
              16.9    Governing Law                                         86
              16.10   Notice                                                86
              16.11   Successors                                            86
              16.12   Spouse's Interest                                     86
              16.13   Validity                                              87
              16.14   Incompetent                                           87
              16.15   Court Order                                           87
              16.16   Distribution in the Event of Taxation                 87
              16.17   Insurance                                             87
              16.18   Legal Fees To Enforce Rights After Change in Control  88


                                       66
<PAGE>



                                      EMCON


                           DEFERRED COMPENSATION PLAN


                            Effective January 1, 1998


                                     Purpose


         The purpose of this Plan is to provide  specified  benefits to a select
group of management and highly compensated  Employees who contribute  materially
to the continued  growth,  development and future  business  success of Emcon, a
California  corporation,  and its subsidiaries,  if any, that sponsor this Plan.
This Plan shall be  unfunded  for tax  purposes  and for  purposes of Title I of
ERISA.

                                    ARTICLE 1
                                   Definitions

         For purposes of this Plan,  unless otherwise  clearly apparent from the
context,  the  following  phrases or terms  shall have the  following  indicated
meanings:

1.1      "Account  Balance" shall mean, with respect to a Participant,  a credit
         on the  records of the  Employer  equal to the sum of (i) the  Deferral
         Account balance, and (ii) the Company Contribution Account balance. The
         Account Balance,  and each other specified account balance,  shall be a
         bookkeeping entry only and shall be utilized solely as a device for the
         measurement  and   determination  of  the  amounts  to  be  paid  to  a
         Participant,  or his or her  designated  Beneficiary,  pursuant to this
         Plan.

1.2      "Annual Bonus" shall mean any compensation,  in addition to Base Annual
         Salary relating to services performed during any calendar year, whether
         or not paid in such calendar year or included on the Federal Income Tax
         Form  W-2 for  such  calendar  year,  payable  to a  Participant  as an
         Employee  under any Employer's  annual bonus and cash incentive  plans,
         excluding stock options.

1.3      "Annual  Deferral  Amount"  shall mean that portion of a  Participant's
         Base Annual Salary and Annual Bonus that a Participant  elects to have,
         and is deferred,  in accordance  with Article 3, for any one Plan Year.
         In the event of a  Participant's  Retirement,  Disability (if deferrals
         cease in  accordance  with  Section  8.1),  death or a  Termination  of
         Employment prior to the end of a Plan Year, such year's Annual Deferral
         Amount shall be the actual amount withheld prior to such event.

1.4      "Base Annual Salary" shall mean the annual cash  compensation  relating
         to services  performed during any calendar year, whether or not paid in
         such calendar  year or included on the Federal  Income Tax Form W-2 for
         such calendar year, excluding bonuses,  commissions,  overtime,  fringe
         benefits,  stock  options,  relocation  expenses,  incentive  payments,
         non-monetary  awards,  and other fees,  automobile and other allowances
         paid to a Participant for employment  services rendered (whether or not
         such  allowances  are included in the Employee's  gross  income).  Base
         Annual Salary shall be  calculated  before  reduction for  compensation
         voluntarily  deferred or contributed by the Participant pursuant to all
         qualified  or  non-qualified   plans  of  any  Employer  and  shall  be

                                       67

<PAGE>

         calculated   to  include   amounts  not   otherwise   included  in  the
         Participant's gross income under Code Sections 125, 402(e)(3),  402(h),
         or 403(b)  pursuant to plans  established  by any  Employer;  provided,
         however, that all such amounts will be included in compensation only to
         the extent  that,  had there been no such plan,  the amount  would have
         been payable in cash to the Employee.

1.5      "Beneficiary" shall mean one or more persons,  trusts, estates or other
         entities, designated in accordance with Article 9, that are entitled to
         receive benefits under this Plan upon the death of a Participant.

1.6      "Beneficiary  Designation  Form" shall mean the form  established  from
         time to time by the Committee  that a Participant  completes  signs and
         returns to the Committee to designate one or more Beneficiaries.

1.7      "Board" shall mean the board of directors of the Company.

1.8      "Change  in  Control"  shall  mean  the  first  to  occur of any of the
         following events:

         (a)      Any  "person" (as that term is used in Section 13 and 14(d)(2)
                  of the  Securities  Exchange  Act of  1934  ("Exchange  Act"))
                  becomes the beneficial  owner (as that term is used in Section
                  13(d) of the Exchange Act), directly or indirectly,  of 50% or
                  more of the Company's  capital  stock  entitled to vote in the
                  election of directors;

         (b)      During any period of not more than two consecutive  years, not
                  including  any  period  prior to the  adoption  of this  Plan,
                  individuals who at the beginning of such period constitute the
                  board of directors of the Company, and any new director (other
                  than a director designated by a person who has entered into an
                  agreement  with the Company to effect a transaction  described
                  in clause  (a),  (c),  (d) or (e) of this  Section  1.8) whose
                  election by the board of directors or nomination  for election
                  by the  Company's  stockholders  was  approved by a vote of at
                  least  three-fourths  (3/4ths) of the directors  then still in
                  office who  either  were  directors  at the  beginning  of the
                  period  or whose  election  or  nomination  for  election  was
                  previously so approved,  cease for any reason to constitute at
                  least a majority thereof;

         (c)      The  shareholders of the Company approve any  consolidation or
                  merger of the Company, other than a consolidation or merger of
                  the  Company in which the  holders of the common  stock of the
                  Company  immediately prior to the consolidation or merger hold
                  more than 50% of the common stock of the surviving corporation
                  immediately after the consolidation or merger;

         (d)      The  shareholders  of the Company approve any plan or proposal
                  for the liquidation or dissolution of the Company; or

         (e)      The  shareholders  of the Company approve the sale or transfer
                  of all or  substantially  all of the assets of the  Company to
                  parties   that  are  not   within  a   "controlled   group  of
                  corporations"  (as defined in Code Section  1563) in which the
                  Company is a member.

1.9      "Claimant" shall have the meaning set forth in Section 14.1.

                                       68
<PAGE>

1.10     "Code"  shall  mean the  Internal  Revenue  Code of 1986,  as it may be
         amended from time to time.

1.11     "Committee" shall mean the committee described in Article 12.

1.12     "Company"  shall mean EMCON Inc.,  a  California  corporation,  and any
         successor  to all or  substantially  all of  the  Company's  assets  or
         business.

1.13     "Company   Contribution   Account"  shall  mean  (i)  the  sum  of  the
         Participant's  Annual Company Contribution  Amounts,  plus (ii) amounts
         credited in accordance with all the applicable  crediting provisions of
         this  Plan  that  relate  to  the  Participant's  Company  Contribution
         Account, less (iii) all distributions made to the Participant or his or
         her Beneficiary  pursuant to this Plan that relate to the Participant's
         Company Contribution Account.


1.14     "Deduction Limitation" shall mean the following described limitation on
         a  benefit  that  may  otherwise  be  distributable   pursuant  to  the
         provisions of this Plan. Except as otherwise provided,  this limitation
         shall  be  applied  to  all  distributions  that  are  "subject  to the
         Deduction  Limitation"  under this Plan.  If an Employer  determines in
         good  faith  prior to a Change in Control  that  there is a  reasonable
         likelihood  that any  compensation  paid to a Participant for a taxable
         year of the Employer would not be deductible by the Employer  solely by
         reason of the limitation under Code Section 162(m),  then to the extent
         deemed  necessary by the  Employer to ensure that the entire  amount of
         any distribution to the Participant  pursuant to this Plan prior to the
         Change in  Control is  deductible,  the  Employer  may defer all or any
         portion  of a  distribution  under  this  Plan.  Any  amounts  deferred
         pursuant to this limitation shall continue to be credited/debited  with
         additional  amounts in accordance with Section 3.9 below,  even if such
         amount is being paid out in  installments.  The amounts so deferred and
         amounts credited thereon shall be distributed to the Participant or his
         or her  Beneficiary  (in the event of the  Participant's  death) at the
         earliest possible date, as determined by the Employer in good faith, on
         which  the  deductibility  of  compensation  paid  or  payable  to  the
         Participant  for the  taxable  year of the  Employer  during  which the
         distribution  is made will not be  limited  by  Section  162(m),  or if
         earlier,  the  effective  date of a Change in Control.  Notwithstanding
         anything to the contrary in this Plan, the Deduction  Limitation  shall
         not apply to any distributions made after a Change in Control.

1.15     "Deferral  Account"  shall  mean (i) the sum of all of a  Participant's
         Annual Deferral Amounts,  plus (ii) amounts credited in accordance with
         all the applicable crediting provisions of this Plan that relate to the
         Participant's  Deferral Account,  less (iii) all distributions  made to
         the  Participant or his or her  Beneficiary  pursuant to this Plan that
         relate to his or her Deferral Account.

1.16     "Director"  shall  mean any  member  of the board of  directors  of any
         Employer.

1.17     "Disability"   shall  mean  a  period  of  disability  during  which  a
         Participant  qualifies  for  permanent  disability  benefits  under the
         Participant's   Employer's   long-term   disability   plan,  or,  if  a
         Participant does not participate in such a plan, a period of disability
         during  which  the  Participant  would  have  qualified  for  permanent
         disability  benefits  under  such a plan  had  the  Participant  been a
         participant in such a plan, as determined in the sole discretion of the
         Committee.  If the Participant's Employer does not sponsor such a plan,

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<PAGE>

         or discontinues to sponsor such a plan,  Disability shall be determined
         by the Committee in its sole discretion.

1.18     "Disability Benefit" shall mean the benefit set forth in Article 8.

1.19     "Discretionary  Company  Contribution  Amount" shall mean,  for any one
         Plan Year, the amount determined in accordance with Section 3.5.

1.20     "Election  Form" shall mean the form  established  from time to time by
         the Committee  that a Participant  completes,  signs and returns to the
         Committee to make an election under the Plan.

1.22     "Employee" shall mean a person who is an employee of any Employer.

1.23     "Employer(s)"  shall mean the  Company  and/or any of its  subsidiaries
         (now in  existence  or  hereafter  formed or  acquired)  that have been
         selected by the Board to  participate  in the Plan and have adopted the
         Plan as a sponsor.

1.24     "ERISA" shall mean the Employee Retirement Income Security Act of 1974,
         as it may be amended from time to time."

1.25     "First Plan Year" shall mean the period  beginning  January 1, 1994 and
         ending December 31, 1994.

1.26     "Index Rate" shall mean,  for each Plan Year, an interest  rate,  which
         may be positive or negative,  determined by the Committee,  in its sole
         discretion, that, unless otherwise indicated by the Committee, shall be
         equal to a rate based on an index  announced by the Committee  prior to
         the beginning of the Plan Year."

1.27     "Monthly  Installment  Method" shall be a monthly  installment  payment
         over the number of months  selected by the  Participant  in  accordance
         with this Plan,  calculated  as  follows:  The  Account  Balance of the
         Participant  shall be  calculated  as of the  close of  business  three
         business days prior to the last business day of the month.  The monthly
         installment  shall be  calculated  by  multiplying  this  balance  by a
         fraction,  the numerator of which is one, and the  denominator of which
         is the remaining number of monthly payments due the Participant. By way
         of example,  if the Participant elects a 120-month Monthly  Installment
         Method,  the  first  payment  shall be 1/120  of the  Account  Balance,
         calculated as described in this  definition.  The following  month, the
         payment shall be 1/119 of the Account Balance,  calculated as described
         in this  definition.  Each monthly  installment  shall be paid on or as
         soon as  practicable  after  the last  business  day of the  applicable
         month.

1.28     "Participant"   shall  mean  any   Employee  (i)  who  is  selected  to
         participate  in the Plan,  (ii) who elects to  participate in the Plan,
         (iii) who signs a Plan  Agreement,  an Election  Form and a Beneficiary
         Designation  Form, (iv) whose signed Plan Agreement,  Election Form and
         Beneficiary  Designation  Form are accepted by the  Committee,  (v) who
         commences  participation in the Plan, and (vi) whose Plan Agreement has
         not terminated. A spouse or former spouse of a Participant shall not be
         treated as a Participant  in the Plan or have an account  balance under
         the  Plan,  even  if he or she  has an  interest  in the  Participant's
         benefits  under  the Plan as a result  of  applicable  law or  property
         settlements resulting from legal separation or divorce.

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<PAGE>

1.29     "Plan" shall mean the Company's Deferred Compensation Plan, which shall
         be evidenced by this instrument and by each Plan Agreement, as they may
         be amended from time to time.

1.30     "Plan Agreement" shall mean a written agreement, as may be amended from
         time to time,  which is entered  into by and between an Employer  and a
         Participant.  Each Plan  Agreement  executed by a  Participant  and the
         Participant's  Employer  shall provide for the entire  benefit to which
         such Participant is entitled under the Plan;  should there be more than
         one Plan  Agreement,  the Plan  Agreement  bearing  the latest  date of
         acceptance by the Employer shall supersede all previous Plan Agreements
         in their entirety and shall govern such  entitlement.  The terms of any
         Plan  Agreement  may be  different  for any  Participant,  and any Plan
         Agreement may provide additional  benefits not set forth in the Plan or
         limit  the  benefits  otherwise  provided  under  the  Plan;  provided,
         however,  that any such additional benefits or benefit limitations must
         be agreed to by both the Employer and the Participant.

1.31     "Plan Year" shall mean a period beginning on January 1 of each calendar
         year  and  continuing  through  December 31 of  such  calendar  year.

1.32     "Pre-Retirement  Survivor  Benefit"  shall mean the  benefit  set forth
         in Article 6.

1.33     "Retirement",  "Retire(s)"  or  "Retired"  shall mean,  severance  from
         employment  with all  Employers  for any  reason  other than a leave of
         absence,  death or disability,  and/or at a time when such  Participant
         would be considered Retired under the Company's qualified 401(k) Plan.

1.34     "Retirement Benefit" shall mean the benefit set forth in Article 5.

1.35     "Short-Term Payout" shall mean the payout set forth in Section 4.1.

1.36     "Termination Benefit" shall mean the benefit set forth in Article 7.

1.37     "Termination of Employment"  shall mean the severing of employment with
         all Employers,  voluntarily or involuntarily, for any reason other than
         Retirement, Disability, death or an authorized leave of absence.

1.38     "Trust"  shall mean one or more  trusts  established  pursuant  to that
         certain Master Trust  Agreement,  dated as of February 28, 1994 between
         the Company  and the trustee  named  therein,  as amended  from time to
         time.

1.39     "Unforeseeable   Financial   Emergency"  shall  mean  an  unanticipated
         emergency  that  is  caused  by an  event  beyond  the  control  of the
         Participant  that  would  result in severe  financial  hardship  to the
         Participant  resulting  from (i) a sudden  and  unexpected  illness  or
         accident of the Participant or a dependent of the  Participant,  (ii) a
         loss of the Participant's property due to casualty, or (iii) such other
         extraordinary  and unforeseeable  circumstances  arising as a result of
         events beyond the control of the Participant,  all as determined in the
         sole discretion of the Committee.

1.40     "Years of Plan Participation"  shall mean the total number of full Plan
         Years a Participant  has been a Participant in the Plan prior to his or

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<PAGE>

         her  Termination  of Employment  (determined  without regard to whether
         deferral  elections  have  been  made by the  Participant  for any Plan
         Year).  Any  partial  year shall not be  counted.  Notwithstanding  the
         previous  sentence,  a Participant's  first Plan Year of  participation
         shall be treated as a full Plan Year for  purposes of this  definition,
         even if it is only a partial Plan Year of participation.

1.41     "Years of Service" shall mean the total number of full years in which a
         Participant has been employed by one or more Employers. For purposes of
         this definition, a year of employment shall be a 365 day period (or 366
         day  period in the case of a leap  year)  that,  for the first  year of
         employment,  commences on the  Employee's  date of hiring and that, for
         any subsequent  year,  commences on an anniversary of that hiring date.
         Any partial year of employment shall not be counted.

                                    ARTICLE 2
                       Selection, Enrollment, Eligibility

2.1      Selection by Committee. Participation in the Plan shall be limited to a
         select  group of  management  and highly  compensated  Employees of the
         Employers, as determined by the Committee in its sole discretion.  From
         that  group,  the  Committee  shall  select,  in its  sole  discretion,
         Employees to participate in the Plan.

2.2      Enrollment Requirements. As a condition to participation, each selected
         Employee  shall  complete,  execute and return to the  Committee a Plan
         Agreement,  an Election Form and a Beneficiary  Designation  Form,  all
         within 30 days after he or she is selected to  participate in the Plan.
         In addition, the Committee shall establish from time to time such other
         enrollment  requirements  as it determines in its sole  discretion  are
         necessary.

2.3      Eligibility;   Commencement  of  Participation.  Provided  an  Employee
         selected to participate in the Plan has met all enrollment requirements
         set  forth  in this  Plan  and  required  by the  Committee,  including
         returning all required  documents to the Committee within the specified
         time period, that Employee shall commence  participation in the Plan on
         the first day of the month  following  the month in which the  Employee
         completes all enrollment requirements. If an Employee fails to meet all
         such  requirements  within  the period  required,  in  accordance  with
         Section 2.2, that Employee  shall not be eligible to participate in the
         Plan until the first day of the Plan Year following the delivery to and
         acceptance by the Committee of the required documents.

2.4      Termination  of  Participation  and/or  Deferrals.   If  the  Committee
         determines  in good faith that a Participant  no longer  qualifies as a
         member of a select group of management or highly compensated employees,
         as membership  in such group is determined in accordance  with Sections
         201(2),  301(a)(3) and 401(a)(1) of ERISA, the Committee shall have the
         right, in its sole discretion,  to (i) terminate any deferral  election
         the  Participant  has made for the  remainder of the Plan Year in which
         the  Participant's   membership   status  changes,   (ii)  prevent  the
         Participant   from  making  future  deferral   elections  and/or  (iii)
         immediately  distribute  the  Participant's  then Account  Balance as a
         Termination  Benefit and terminate the  Participant's  participation in
         the Plan.

                                       72
<PAGE>


                                    ARTICLE 3
              Deferral Commitments/Company Matching/Crediting/Taxes

3.1      Minimum Deferrals:

         (a)      Base  Annual  Salary,  Annual  Bonus.  For each Plan  Year,  a
                  Participant  may elect to defer, as his or her Annual Deferral
                  Amount,   Base  Annual  Salary  and/or  Annual  Bonus  in  the
                  following minimum amounts for each deferral elected:

                  --------------------------------------------------------------
                               Deferral                  Minimum Amount
                         Base Annual Salary                 $2,000
                         Annual Bonus                       $2,000
                  --------------------------------------------------------------

                  If an election is made for less than stated  minimum  amounts,
                  or if no election is made, the amount deferred shall be zero.


         (b)      Short  Plan  Year.   Notwithstanding   the  foregoing,   if  a
                  Participant first becomes a Participant after the first day of
                  a Plan Year, or in the case of the first Plan Year of the Plan
                  itself,  the minimum Base Annual Salary  deferral  shall be an
                  amount equal to the minimum set forth above,  multiplied  by a
                  fraction,  the  numerator  of which is the number of  complete
                  months remaining in the Plan Year and the denominator of which
                  is 12.

3.2      Maximum Deferral:

         (a)      Base  Annual  Salary,  Annual  Bonus.  For each Plan  Year,  a
                  Participant  may elect to defer, as his or her Annual Deferral
                  Amount,  Base  Annual  Salary  and/or  Annual  Bonus up to the
                  following maximum percentages for each deferral elected:

                  --------------------------------------------------------------
                               Deferral                 Maximum Amount
                         Base Annual Salary                   50%
                         Annual Bonus                        100%
                  --------------------------------------------------------------

         (b)      Notwithstanding the foregoing,  if a Participant first becomes
                  a  Participant  after the first day of a Plan Year,  or in the
                  case of the first Plan Year of the Plan  itself,  the  maximum
                  Annual  Deferral  Amount,  with respect to Base Annual Salary,
                  Annual  Bonus  shall be limited to the amount of  compensation
                  not  yet  earned  by  the  Participant  as  of  the  date  the
                  Participant  submits a Plan Agreement and Election Form to the
                  Committee for acceptance.


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<PAGE>


3.3      Election to Defer; Effect of Election Form:

         (a)      First  Plan  Year.   In   connection   with  a   Participant's
                  commencement  of  participation  in the Plan, the  Participant
                  shall make an irrevocable  deferral election for the Plan Year
                  in which the Participant commences  participation in the Plan,
                  along  with  such  other  elections  as  the  Committee  deems
                  necessary or desirable  under the Plan. For these elections to
                  be valid,  the Election  Form must be completed  and signed by
                  the  Participant,   timely  delivered  to  the  Committee  (in
                  accordance  with  Section  2.2  above)  and  accepted  by  the
                  Committee.

         (b)      Subsequent  Plan  Years.  For each  succeeding  Plan Year,  an
                  irrevocable  deferral  election  for that Plan Year,  and such
                  other  elections as the Committee deems necessary or desirable
                  under the  Plan,  shall be made by  timely  delivering  to the
                  Committee, in accordance with its rules and procedures, before
                  the end of the Plan Year preceding the Plan Year for which the
                  election is made, a new  Election  Form.  If no such  Election
                  Form is timely  delivered for a Plan Year, the Annual Deferral
                  Amount shall be zero for that Plan Year.

3.4      Withholding of Annual  Deferral  Amounts.  For each Plan Year, the Base
         Annual Salary portion of the Annual  Deferral  Amount shall be withheld
         from each  regularly  scheduled  Base  Annual  Salary  payroll in equal
         amounts,  as adjusted  from time to time for increases and decreases in
         Base Annual Salary.  The Annual Bonus or portion of the Annual Deferral
         Amount  shall be withheld at the time the Annual Bonus are or otherwise
         would be paid to the Participant, whether or not this occurs during the
         Plan Year itself.

3.5      Discretionary  Company  Contribution  Amount.  For each Plan  Year,  an
         Employer,  in its sole discretion,  may, but is not required to, credit
         any amount it desires to any Participant's Company Contribution Account
         under  this  Plan,  which  amount  shall  be for that  Participant  the
         Discretionary  Company  Contribution  Amount  for that Plan  Year.  The
         amount so credited to a  Participant  may be smaller or larger than the
         amount  credited to any other  Participant,  and the amount credited to
         any  Participant  for a Plan Year may be zero,  even though one or more
         other Participants receive a Discretionary  Company Contribution Amount
         for that Plan Year. The Discretionary  Company  Contribution Amount, if
         any, shall be credited as of the first day of the Plan Year.

3.6      Investment  of  Trust  Assets.  The  Trustee  of  the  Trust  shall  be
         authorized,  upon written  instructions  received from the Committee or
         investment  manager appointed by the Committee,  to invest and reinvest
         the  assets  of the  Trust  in  accordance  with the  applicable  Trust
         Agreement,  including the disposition of stock and  reinvestment of the
         proceeds  in  one  or  more  investment   vehicles  designated  by  the
         Committee.
3.7      Vesting:

         (a)      A Participant  shall at all times be 100% vested in his or her
                  Deferral Account.


         (b)      A  Participant  shall at all times be zero percent (0%) vested
                  in his or her Company  Contribution  Account,  unless fully or
                  partially vested in accordance with the vesting  schedule,  if
                  any, provided in his or her Plan Agreement.

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<PAGE>

3.8      Crediting/Debiting of Account Balances. In accordance with, and subject
         to, the rules and procedures that are established  from time to time by
         the  Committee,  in its sole  discretion,  amounts shall be credited or
         debited  to a  Participant's  Account  Balance in  accordance  with the
         following rules:

         (a)      Election of Measurement  Funds.  A Participant,  in connection
                  with his or her initial  deferral  election in accordance with
                  Section 3.3(a) above,  shall elect,  on the Election Form, one
                  or more  Measurement  Fund(s) (as described in Section  3.8(c)
                  below) to be used to determine  the  additional  amounts to be
                  credited to his or her Account Balance for the Plan Year.

         (b)      Proportionate  Allocation. In making any election described in
                  Section  3.8(a) above,  the  Participant  shall specify on the
                  Election Form, in increments of five  percentage  points (5%),
                  the  percentage of his or her Account  Balance to be allocated
                  to a  Measurement  Fund (as if the  Participant  was making an
                  investment in that  Measurement  Fund with that portion of his
                  or her Account Balance).

         (c)      Measurement  Funds.  The  Participant may elect one or more of
                  the following  measurement funds, for the purpose of crediting
                  additional amounts to his or her Account Balance:

                  (1)      Moody's Rate. Based on the Moody's Seasoned Corporate
                           Bond Rate.

                  (2)      S&P Index Rate.

                  As  necessary,  the  Committee  may,  in its sole  discretion,
                  discontinue,  substitute or add a Measurement  Fund. Each such
                  action  will take  effect as of the first day of the Plan Year
                  that  follows  by  thirty  (30)  days  the  day on  which  the
                  Committee  gives  Participants  advance written notice of such
                  change.

         (d)      Crediting or Debiting Method.  The performance of each elected
                  Measurement   Fund  (either  positive  or  negative)  will  be
                  determined by the Committee, in its sole discretion,  based on
                  the  performance  of  the  Measurement  Funds  themselves.   A
                  Participant's  Account Balance shall be credited or debited on
                  a daily basis  based on the  performance  of each  Measurement
                  Fund  selected  by  the  Participant,  as  determined  by  the
                  Committee   in  its  sole   discretion,   as   though   (i)  a
                  Participant's Account Balance were invested in the Measurement
                  Fund(s)  selected  by  the  Participant,  in  the  percentages
                  applicable  to such Plan Year,  as of the close of business on
                  the first business day of such Plan Year, at the closing price
                  on such date; (ii) and any distribution  made to a Participant
                  that decreases such Participant's Account Balance ceased being
                  invested  in  the  Measurement  Fund(s),  in  the  percentages
                  applicable to such Plan Year,  no earlier than three  business
                  days prior to the  distribution,  at the closing price on such
                  date.


         (e)      No Actual Investment.  Notwithstanding  any other provision of
                  this  Plan  that  may  be  interpreted  to the  contrary,  the
                  Measurement  Funds  are to be used  for  measurement  purposes
                  only,  and a  Participant's  election of any such  Measurement
                  Fund,  the allocation to his or her Account  Balance  thereto,
                  the calculation of additional

                                       75

<PAGE>

                  amounts and the  crediting  or  debiting of such  amounts to a
                  Participant's  Account  Balance  shall  not be  considered  or
                  construed in any manner as an actual  investment of his or her
                  Account  Balance in any such  Measurement  Fund.  In the event
                  that the  Company or the  Trustee  (as that term is defined in
                  the Trust), in its own discretion,  decides to invest funds in
                  any or all of the Measurement Funds, no Participant shall have
                  any  rights  in or to  such  investments  themselves.  Without
                  limiting the foregoing,  a Participant's Account Balance shall
                  at all  times  be a  bookkeeping  entry  only  and  shall  not
                  represent  any  investment  made on his or her  behalf  by the
                  Company  or the  Trust;  the  Participant  shall at all  times
                  remain an unsecured creditor of the Company.

3.9      FICA and Other Taxes:

         (a)      Annual Deferral Amounts. For each Plan Year in which an Annual
                  Deferral  Amount is being  withheld  from a  Participant,  the
                  Participant's  Employer(s) shall withhold from that portion of
                  the  Participant's  Base  Annual  Salary and Bonus that is not
                  being deferred, in a manner determined by the Employer(s), the
                  Participant's share of FICA and other employment taxes on such
                  Annual Deferral Amount. If necessary, the Committee may reduce
                  the  Annual  Deferral  Amount  in order to  comply  with  this
                  Section 3.9.

         (b)      Company  Contribution  Amounts.  When  a  participant  becomes
                  vested  in a  portion  of  his  or  her  Company  Contribution
                  Account, the Participant's Employer(s) shall withhold from the
                  Participant's  Base  Annual  Salary  and/or  Bonus that is not
                  deferred,  in a  manner  determined  by the  Employer(s),  the
                  Participant's  share of FICA and other  employment  taxes.  If
                  necessary,  the Committee may reduce the vested portion of the
                  Participant's  Company Contribution Account in order to comply
                  with this Section 3.9.

3.10     Distributions.  The  Participant's  Employer(s),  or the trustee of the
         Trust,  shall  withhold from any payments  made to a Participant  under
         this Plan all federal,  state and local  income,  employment  and other
         taxes required to be withheld by the Employer(s), or the trustee of the
         Trust, in connection with such payments,  in amounts and in a manner to
         be determined in the sole discretion of the Employer(s) and the trustee
         of the Trust.

                                    ARTICLE 4
             Short-Term Payout; Unforeseeable Financial Emergencies;
                              Withdrawal Election

4.1      Short-Term  Payout. In connection with each election to defer an Annual
         Deferral  Amount,  a  Participant  may  irrevocably  elect to receive a
         future  "Short-Term  Payout"  from the Plan with respect to such Annual
         Deferral Amount.  Subject to the Deduction  Limitation,  the Short-Term
         Payout  shall be a lump sum  payment in an amount  that is equal to the
         Annual Deferral  Amount plus amounts  credited or debited in the manner
         provided in Section 3.9 above on that  amount,  determined  at the time
         that the Short-Term  Payout becomes  payable (rather than the date of a
         Termination of Employment). Subject to the Deduction Limitation and the
         other terms and conditions of this Plan, each Short-Term Payout elected
         shall be paid out  during a period  beginning  1 day and ending 60 days
         after the last day of any Plan Year designated by the Participant  that
         is at least  five Plan  Years  after the Plan Year in which the  Annual
         Deferral Amount is actually deferred. By way of example, if a five year
         Short-Term  Payout is elected  for  Annual  Deferral  Amounts  that are
         deferred  in the Plan Year  commencing  January 1, 1998,  the five year
         Short-Term   Payout  would  become  payable  during  a  60  day  period
         commencing January 1, 2003.

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<PAGE>

4.2      Other Benefits Take Precedence Over  Short-Term.  Should an event occur
         that triggers a benefit under Article 5, 6, 7 or 8, any Annual Deferral
         Amount, plus amounts credited or debited thereon,  that is subject to a
         Short-Term  Payout  election  under  Section  4.1  shall not be paid in
         accordance  with Section 4.1 but shall be paid in  accordance  with the
         other  applicable  Article.  Moreover,  any Short-Term  Payout shall be
         adjusted to take into account any contribution under Section 4.5 below.

4.3      Withdrawal  Payout/Suspensions for Unforeseeable Financial Emergencies.
         If the Participant  experiences an Unforeseeable  Financial  Emergency,
         the Participant may petition the Committee to (i) suspend any deferrals
         required to be made by a  Participant  and/or (ii) receive a partial or
         full  payout from the Plan.  The payout  shall not exceed the lesser of
         the  Participant's  vested  Account  Balance,  calculated  as  if  such
         Participant  were  receiving  a  Termination  Benefit,  or  the  amount
         reasonably needed to satisfy the Unforeseeable Financial Emergency. If,
         subject to the sole  discretion  of the  Committee,  the petition for a
         suspension and/or payout is approved, suspension shall take effect upon
         the date of approval and any payout shall be made within 60 days of the
         date of  approval.  The  payment of any amount  under this  Section 4.3
         shall not be subject to the Deduction Limitation.

4.4      Withdrawal.  A Participant (or, after a Participant's death, his or her
         Beneficiary)  may elect,  at any time,  to  withdraw  all of his or her
         vested  Account  Balance,   calculated  as  if  there  had  occurred  a
         Termination  of  Employment  as of  the  day of  the  election,  less a
         withdrawal penalty equal to 10% of such amount (the net amount shall be
         referred to as the "Withdrawal  Amount").  This election can be made at
         any time, before or after Retirement,  Disability, death or Termination
         of Employment,  and whether or not the Participant (or  Beneficiary) is
         in the  process  of  being  paid  pursuant  to an  installment  payment
         schedule.   If  made  before   Retirement,   Disability  or  death,   a
         Participant's  Withdrawal  Amount  shall be his or her Account  Balance
         calculated as if there had occurred a  Termination  of Employment as of
         the day of the  election.  No  partial  withdrawals  of the  Withdrawal
         Amount shall be allowed.  The Participant  (or his or her  Beneficiary)
         shall make this election by giving the Committee advance written notice
         of  the  election  in a  form  determined  from  time  to  time  by the
         Committee.  The Participant (or his or her  Beneficiary)  shall be paid
         the Withdrawal  Amount within 60 days of his or her election.  Once the
         Withdrawal Amount is paid, the Participant's  participation in the Plan
         shall  terminate  and  the   Participant   shall  not  be  eligible  to
         participate in the Plan in the future.  The payment of this  Withdrawal
         Amount shall not be subject to the Deduction Limitation.


                                    ARTICLE 5
                               Retirement Benefit

5.1      Retirement Benefit.  Subject to the Deduction Limitation, a Participant
         who Retires shall receive, as a Retirement  Benefit,  his or her vested
         Account Balance.

5.2      Payment of Retirement Benefit. A Participant, in connection with his or
         her  commencement  of  participation  in the  Plan,  shall  elect on an
         Election  Form to  receive  the  Retirement  Benefit  in a lump  sum or
         pursuant to a Annual Installment Method of 5 years. The Participant may
         annually change his or her election to an allowable  alternative payout

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         period by  submitting a new Election  Form to the  Committee,  provided
         that any such  Election  Form is  submitted at least 18 months prior to
         the  Participant's  Retirement  and is accepted by the Committee in its
         sole  discretion.  The  Election  Form most  recently  accepted  by the
         Committee  shall  govern the  payout of the  Retirement  Benefit.  If a
         Participant  does not make any election  with respect to the payment of
         the  Retirement  Benefit,  then such benefit shall be payable in a lump
         sum. The lump sum payment shall be made, or installment  payments shall
         commence, no later than 60 days after the date the Participant Retires.
         Any payment made shall be subject to the Deduction Limitation.

5.3      Death Prior to Completion of Retirement  Benefit. If a Participant dies
         after Retirement but before the Retirement Benefit is paid in full, the
         Participant's  unpaid  Retirement  Benefit  payments shall continue and
         shall be paid to the  Participant's  Beneficiary (a) over the remaining
         number of years and in the same amounts as that benefit would have been
         paid to the Participant had the Participant  survived, or (b) in a lump
         sum, if requested by the Beneficiary and allowed in the sole discretion
         of the Committee,  that is equal to the Participant's  unpaid remaining
         Account Balance.

                                    ARTICLE 6
                         Pre-Retirement Survivor Benefit

6.1      Pre-Retirement  Survivor Benefit.  Subject to the Deduction Limitation,
         the Participant's  Beneficiary shall receive a Pre-Retirement  Survivor
         Benefit  equal  to the  Participant's  vested  Account  Balance  if the
         Participant dies before he or she Retires, experiences a Termination of
         Employment or suffers a Disability.

6.2      Payment  of  Pre-Retirement   Survivor  Benefit.   A  Participant,   in
         connection with his or her  commencement of  participation in the Plan,
         shall elect on an Election  Form  whether the  Pre-Retirement  Survivor
         Benefit  shall be received by his or her  Beneficiary  in a lump sum or
         pursuant to a Annual Installment Method of 5 years. The Participant may
         annually change this election to an allowable alternative payout period
         by submitting a new Election Form to the Committee,  which form must be
         accepted by the  Committee in its sole  discretion.  The Election  Form
         most  recently  accepted by the  Committee  prior to the  Participant's
         death  shall  govern  the  payout of the  Participant's  Pre-Retirement
         Survivor  Benefit.  If a  Participant  does not make any election  with
         respect to the payment of the  Pre-Retirement  Survivor  Benefit,  then
         such benefit shall be paid in a lump sum. Despite the foregoing, if the
         Participant's  Account  Balance at the time of his or her death is less
         than $25,000,  payment of the  Pre-Retirement  Survivor  Benefit may be
         made,  in the  sole  discretion  of  the  Committee,  in a lump  sum or
         pursuant to a Annual Installment Method of not more than 60 months. The
         lump sum payment shall be made, or installment payments shall commence,
         no later than 5 years after the date the  Committee  is  provided  with
         proof that is satisfactory to the Committee of the Participant's death.
         Any payment made shall be subject to the Deduction Limitation.


                                    ARTICLE 7
                               Termination Benefit


7.1      Termination  Benefit.   Subject  to  the  Deduction   Limitation,   the
         Participant shall receive a Termination  Benefit,  which shall be equal

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         to  the   Participant's   vested  Account   Balance  if  a  Participant
         experiences a Termination of Employment prior to his or her Retirement,
         death or Disability.


7.2      Payment of Termination Benefit. If the Participant's Account Balance at
         the time of his or her  Termination of Employment is less than $25,000,
         payment of his or her Termination  Benefit shall be paid in a lump sum.
         If his or her Account  Balance at such time is equal to or greater than
         that  amount,  the  Committee,  in its sole  discretion,  may cause the
         Termination  Benefit to be paid in a lump sum or in substantially equal
         annual installment  payments over a period of time that does not exceed
         five  years  in  duration.  The  lump sum  payment  shall  be made,  or
         installment  payments shall  commence,  no later than 60 days after the
         date the  date of the  Participant's  Termination  of  Employment.  Any
         payment made shall be subject to the Deduction Limitation.


                                    ARTICLE 8
                          Disability Waiver and Benefit

8.1      Disability Waiver:

         (a)      Waiver of Deferral.  A  Participant  who is  determined by the
                  Committee to be suffering  from a Disability  shall be excused
                  from  fulfilling  that portion of the Annual  Deferral  Amount
                  commitment  that would  otherwise  have been  withheld  from a
                  Participant's  Base Annual  Salary and/or Annual Bonus for the
                  Plan  Year  during  which  the  Participant  first  suffers  a
                  Disability.  During the period of Disability,  the Participant
                  shall  not  be  allowed  to  make  any   additional   deferral
                  elections,  but will  continue to be  considered a Participant
                  for all other purposes of this Plan.

         (b)      Return to Work. If a Participant  returns to employment,  with
                  an Employer,  after a Disability  ceases,  the Participant may
                  elect to defer an  Annual  Deferral  Amount  for the Plan Year
                  following  his or her return to  employment or service and for
                  every Plan Year  thereafter  while a Participant  in the Plan;
                  provided such deferral  elections are otherwise allowed and an
                  Election  Form is delivered  to and accepted by the  Committee
                  for each such election in accordance with Section 3.3 above.

8.2      Continued  Eligibility;  Disability Benefit. A Participant  suffering a
         Disability shall, for benefit purposes under this Plan,  continue to be
         considered  to be employed,  or in the service of an Employer and shall
         be eligible for the  benefits  provided for in Articles 4, 5, 6 or 7 in
         accordance with the provisions of those Articles.  Notwithstanding  the
         above,  the Committee shall have the right to, in its sole and absolute
         discretion  and for purposes of this Plan only, and must in the case of
         a Participant who is otherwise eligible to Retire, deem the Participant
         to have  experienced a Termination of  Employment,  or in the case of a
         Participant who is eligible to Retire, to have Retired, at any time (or
         in the case of a  Participant  who is  eligible  to Retire,  as soon as
         practicable)  after such  Participant  is  determined to be suffering a
         Disability,  in which case the  Participant  shall receive a Disability
         Benefit  equal  to his or  her  Account  Balance  at  the  time  of the
         Committee's   determination;   provided,   however,   that  should  the
         Participant  otherwise have been eligible to Retire, he or she shall be
         paid in accordance with Article 5. The Disability Benefit shall be paid

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<PAGE>

         in a lump sum within 60 days of the Committee's exercise of such right.
         Any payment made shall be subject to the Deduction Limitation.


                                    ARTICLE 9
                             Beneficiary Designation

9.1      Beneficiary.  Each  Participant  shall have the right,  at any time, to
         designate  his  or  her  Beneficiary(is)   (both  primary  as  well  as
         contingent)  to  receive  any  benefits  payable  under  the  Plan to a
         beneficiary upon the death of a Participant. The Beneficiary designated
         under this Plan may be the same as or  different  from the  Beneficiary
         designation   under  any  other  plan  of  an  Employer  in  which  the
         Participant participates.

9.2      Beneficiary  Designation;  Change; Spousal Consent. A Participant shall
         designate  his  or  her  Beneficiary  by  completing  and  signing  the
         Beneficiary  Designation Form, and returning it to the Committee or its
         designated  agent.  A  Participant  shall  have the  right to  change a
         Beneficiary  by  completing,  signing and otherwise  complying with the
         terms of the Beneficiary Designation Form and the Committee's rules and
         procedures,  as in effect from time to time. If the  Participant  names
         someone  other  than his or her  spouse  as a  Beneficiary,  a  spousal
         consent,  in the form  designated by the  Committee,  must be signed by
         that  Participant's  spouse and  returned  to the  Committee.  Upon the
         acceptance by the Committee of a new Beneficiary  Designation Form, all
         Beneficiary  designations  previously  filed  shall  be  canceled.  The
         Committee shall be entitled to rely on the last Beneficiary Designation
         Form filed by the  Participant  and accepted by the Committee  prior to
         his or her death.

9.3      Acknowledgment.   No   designation   or  change  in  designation  of  a
         Beneficiary  shall be  effective  until  received and  acknowledged  in
         writing by the Committee or its designated agent.

9.4      No  Beneficiary  Designation.  If a  Participant  fails to  designate a
         Beneficiary  as provided in Sections  9.1, 9.2 and 9.3 above or, if all
         designated  Beneficiaries  predecease  the  Participant or die prior to
         complete   distribution  of  the  Participant's   benefits,   then  the
         Participant's  designated  Beneficiary shall be deemed to be his or her
         surviving  spouse.  If the  Participant  has no surviving  spouse,  the
         benefits  remaining under the Plan to be paid to a Beneficiary shall be
         payable to the executor or personal representative of the Participant's
         estate.

9.5      Doubt  as to  Beneficiary.  If the  Committee  has any  doubt as to the
         proper  Beneficiary  to receive  payments  pursuant  to this Plan,  the
         Committee shall have the right, exercisable in its discretion, to cause
         the Participant's  Employer to withhold such payments until this matter
         is resolved to the Committee's satisfaction.

9.6      Discharge of  Obligations.  The payment of benefits under the Plan to a
         Beneficiary shall fully and completely  discharge all Employers and the
         Committee from all further  obligations under this Plan with respect to
         the Participant,  and that Participant's Plan Agreement shall terminate
         upon such full payment of benefits.

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<PAGE>

                                   ARTICLE 10
                                Leave of Absence

10.1     Paid  Leave  of  Absence.   If  a  Participant  is  authorized  by  the
         Participant's  Employer  for any reason to take a paid leave of absence
         from the employment of the Employer,  the Participant shall continue to
         be considered  employed by the Employer and the Annual  Deferral Amount
         shall  continue  to be  withheld  during  such paid leave of absence in
         accordance with Section 3.3.

10.2     Unpaid  Leave  of  Absence.  If a  Participant  is  authorized  by  the
         Participant's  Employer  for any  reason  to take an  unpaid  leave  of
         absence from the  employment of the  Employer,  the  Participant  shall
         continue to be considered  employed by the Employer and the Participant
         shall be excused  from making  deferrals  until the earlier of the date
         the leave of  absence  expires  or the  Participant  returns  to a paid
         employment  status.  Upon such  expiration or return,  deferrals  shall
         resume  for  the  remaining  portion  of the  Plan  Year in  which  the
         expiration or return occurs,  based on the deferral  election,  if any,
         made for that Plan Year. If no election was made for that Plan Year, no
         deferral shall be withheld.


                                   ARTICLE 11
                     Termination, Amendment or Modification

11.1     Termination.  Although each Employer  anticipates that it will continue
         the Plan for an indefinite  period of time,  there is no guarantee that
         any Employer  will  continue the Plan or will not terminate the Plan at
         any time in the future.  Accordingly,  each Employer reserves the right
         to discontinue its sponsorship of the Plan and/or to terminate the Plan
         at any time with respect to any or all of its participating  Employees,
         by action of its board of directors.  Upon the  termination of the Plan
         with  respect to any  Employer,  the Plan  Agreements  of the  affected
         Participants  who are employed by that  Employer,  or in the service of
         that  Employer,  shall  terminate  and their vested  Account  Balances,
         determined as if they had  experienced  a Termination  of Employment on
         the date of Plan termination or, if Plan  termination  occurs after the
         date upon which a Participant was eligible to Retire, then with respect
         to that  Participant  as if he or she had  Retired  on the date of Plan
         termination,  shall be paid to the Participants as follows:  Prior to a
         Change in Control, if the Plan is terminated with respect to all of its
         Participants, an Employer shall have the right, in its sole discretion,
         and notwithstanding any elections made by the Participant,  to pay such
         benefits in a lump sum or pursuant to a Monthly  Installment  Method of
         up  to  15  years,   with  amounts  credited  and  debited  during  the
         installment  period as provided herein.  If the Plan is terminated with
         respect  to less than all of its  Participants,  an  Employer  shall be
         required to pay such benefits in a lump sum. After a Change in Control,
         the Employer  shall be required to pay such benefits in a lump sum. The
         termination of the Plan shall not adversely  affect any  Participant or
         Beneficiary  who has become  entitled  to the  payment of any  benefits
         under the Plan as of the date of termination;  provided  however,  that
         the Employer  shall have the right to accelerate  installment  payments
         without a premium or  prepayment  penalty by paying the vested  Account
         Balance in a lump sum or pursuant to a Monthly Installment Method using
         fewer months (provided that the present value of all payments that will
         have been  received by a  Participant  at any given point of time under
         the different  payment schedule shall equal or exceed the present value
         of all  payments  that would have been  received  at that point in time
         under the original payment schedule).

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11.2     Amendment.  Any Employer may, at any time,  amend or modify the Plan in
         whole or in part with  respect  to that  Employer  by the action of its
         board  of   directors;   provided,   however,   that  no  amendment  or
         modification  shall be effective to decrease or restrict the value of a
         Participant's  vested  Account  Balance  in  existence  at the time the
         amendment or modification is made, calculated as if the Participant had
         experienced a Termination of Employment as of the effective date of the
         amendment or modification  or, if the amendment or modification  occurs
         after the date upon which the Participant  was eligible to Retire,  the
         Participant  had Retired as of the  effective  date of the amendment or
         modification.  The  amendment  or  modification  of the Plan  shall not
         affect any  Participant or Beneficiary  who has become  entitled to the
         payment of benefits  under the Plan as of the date of the  amendment or
         modification; provided, however, that the Employer shall have the right
         to accelerate installment payments by paying the vested Account Balance
         in a lump sum or pursuant to a Monthly  Installment  Method using fewer
         months  (provided that the present value of all payments that will have
         been  received  by a  Participant  at any given point of time under the
         different  payment  schedule shall equal or exceed the present value of
         all payments  that would have been received at that point in time under
         the original payment schedule).

11.3     Plan Agreement. Despite the provisions of Sections 11.1 and 11.2 above,
         if a Participant's Plan Agreement contains benefits or limitations that
         are not in this Plan document, the Employer may only amend or terminate
         such provisions with the consent of the Participant.

11.4     Effect of Payment.  The full payment of the  applicable  benefit  under
         Articles  4, 5, 6, 7 or 8 of the Plan shall  completely  discharge  all
         obligations to a Participant  and his or her  designated  Beneficiaries
         under this Plan and the Participant's Plan Agreement shall terminate.

                                   ARTICLE 12
                                 Administration

12.1     Committee Duties. This Plan shall be administered by a Committee, which
         shall  consist  of the  Board,  or such  committee  as the Board  shall
         appoint.  Members of the Committee may be Participants under this Plan.
         The Committee shall also have the discretion and authority to (i) make,
         amend, interpret, and enforce all appropriate rules and regulations for
         the  administration of this Plan and (ii) decide or resolve any and all
         questions  including  interpretations  of this  Plan,  as may  arise in
         connection  with the Plan. Any individual  serving on the Committee who
         is a Participant shall not vote or act on any matter relating solely to
         himself or herself.  When making a determination  or  calculation,  the
         Committee  shall be  entitled  to rely on  information  furnished  by a
         Participant or the Company.

12.2     Agents.  In the  administration  of this Plan,  the Committee may, from
         time to time,  employ  agents and delegate to them such  administrative
         duties  as it sees  fit  (including  acting  through  a duly  appointed
         representative)  and may from time to time consult with counsel who may
         be counsel to any Employer.

12.3     Binding  Effect of  Decisions.  The decision or action of the Committee
         with respect to any question  arising out of or in connection  with the

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<PAGE>

         administration,  interpretation  and  application  of the  Plan and the
         rules  and  regulations   promulgated  hereunder  shall  be  final  and
         conclusive  and  binding  upon all persons  having any  interest in the
         Plan.

12.4     Indemnity of Committee. All Employers shall indemnify and hold harmless
         the members of the  Committee,  and any  Employee to whom the duties of
         the  Committee may be  delegated,  against any and all claims,  losses,
         damages,  expenses or liabilities arising from any action or failure to
         act with respect to this Plan, except in the case of willful misconduct
         by the Committee or any of its members or any such Employee.

12.5     Employer Information. To enable the Committee to perform its functions,
         each Employer shall supply full and timely information to the Committee
         on all matters  relating to the compensation of its  Participants,  the
         date  and  circumstances  of  the  Retirement,   Disability,  death  or
         Termination of Employment of its Participants, and such other pertinent
         information as the Committee may reasonably require.


                                   ARTICLE 13
                          Other Benefits and Agreements

13.1     Coordination   with  Other  Benefits.   The  benefits  provided  for  a
         Participant  and  Participant's  Beneficiary  under  the  Plan  are  in
         addition to any other benefits  available to such Participant under any
         other plan or program for employees of the Participant's  Employer. The
         Plan  shall  supplement  and shall not  supersede,  modify or amend any
         other  such  plan or  program  except  as may  otherwise  be  expressly
         provided.
                                   ARTICLE 14
                                Claims Procedures

14.1     Presentation  of Claim.  Any  Participant  or Beneficiary of a deceased
         Participant (such Participant or Beneficiary being referred to below as
         a  "Claimant")  may  deliver  to the  Committee  a written  claim for a
         determination  with  respect  to  the  amounts  distributable  to  such
         Claimant  from the Plan.  If such a claim  relates to the contents of a
         notice received by the Claimant,  the claim must be made within 60 days
         after such notice was received by the  Claimant.  All other claims must
         be made  within 180 days of the date on which the event that caused the
         claim to arise occurred.  The claim must state with  particularity  the
         determination desired by the Claimant.

14.2     Notification  of Decision.  The Committee  shall  consider a Claimant's
         claim  within a  reasonable  time,  and shall  notify the  Claimant  in
         writing:

         (a)      that the Claimant's requested determination has been made, and
                  that the claim has been allowed in full; or

         (b)      that the Committee has reached a conclusion contrary, in whole
                  or in part, to the  Claimant's  requested  determination,  and
                  such  notice  must  set  forth in a  manner  calculated  to be
                  understood by the Claimant:

                 (1) the specific  reason(s) for the denial of the claim, or any
                     part of it;

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<PAGE>

                 (2) specific  reference(s) to pertinent provisions of the Plan
                     upon which such denial was based;

                 (3) a description  of any  additional  material or  information
                     necessary  for the Claimant  to perfect  the claim,  and an
                     explanation   of  why  such  material  or  information  is
                     necessary; and

                 (4) an explanation  of the claim review  procedure set forth in
                     Section 14.3 below.

14.3     Review of a Denied Claim.  Within 60 days after receiving a notice from
         the  Committee  that a claim has been  denied,  in whole or in part,  a
         Claimant (or the Claimant's  duly authorized  representative)  may file
         with the Committee a written  request for a review of the denial of the
         claim.  Thereafter,  but  not  later  than  30 days  after  the  review
         procedure  began,  the  Claimant  (or the  Claimant's  duly  authorized
         representative):

         (a)      may review pertinent documents;

         (b)      may submit written comments or other documents; and/or

         (c)      may request a hearing, which the Committee, in its sole 
                  discretion, may grant.
               
14.4     Decision on Review.  The Committee  shall render its decision on review
         promptly,  and not later  than 60 days  after  the  filing of a written
         request  for  review of the  denial,  unless a hearing is held or other
         special  circumstances  require  additional  time,  in  which  case the
         Committee's  decision must be rendered within 120 days after such date.
         Such decision  must be written in a manner  calculated to be understood
         by the Claimant, and it must contain:

         (a)      specific reasons for the decision;

         (b)      specific reference(s) to the pertinent Plan provisions upon 
                  which the decision was based; and

         (c)      such other matters as the Committee deems relevant.

14.5     Legal Action. A Claimant's  compliance with the foregoing provisions of
         this Article 14 is a mandatory  prerequisite  to a Claimant's  right to
         commence any legal action with respect to any claim for benefits  under
         this Plan.

                                   ARTICLE 15
                                      Trust

15.1     Establishment  of the Trust. The Company shall establish the Trust, and
         each Employer shall at least  annually  transfer over to the Trust such
         assets  as  the  Employer  determines,  in  its  sole  discretion,  are
         necessary  to provide,  on a present  value basis,  for its  respective
         future liabilities created with respect to the Annual Deferral Amounts,
         Annual Company  Contribution  Amounts, and Company Matching Amounts for
         such Employer's  Participants for all periods prior to the transfer, as
         well as any debits and credits to the  Participants'  Account  Balances

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<PAGE>

         for all periods prior to the transfer,  taking into  consideration  the
         value of the assets in the trust at the time of the transfer.

15.2     Interrelationship of the Plan and the Trust. The provisions of the Plan
         and the Plan  Agreement  shall  govern the rights of a  Participant  to
         receive distributions pursuant to the Plan. The provisions of the Trust
         shall  govern  the  rights  of  the  Employers,  Participants  and  the
         creditors of the Employers to the assets transferred to the Trust. Each
         Employer shall at all times remain liable to carry out its  obligations
         under the Plan.

15.3     Distributions  From the Trust.  Each Employer's  obligations  under the
         Plan may be  satisfied  with Trust assets  distributed  pursuant to the
         terms  of the  Trust,  and  any  such  distribution  shall  reduce  the
         Employer's obligations under this Plan.

                                   ARTICLE 16
                                  Miscellaneous

16.1     Status of Plan. The Plan is intended to be a plan that is not qualified
         within the meaning of Code Section  401(a) and that "is unfunded and is
         maintained  by an  employer  primarily  for the  purpose  of  providing
         deferred  compensation  for a select  group  of  management  or  highly
         compensated  employee"  within the  meaning of ERISA  Sections  201(2),
         301(a)(3) and 401(a)(1). The Plan shall be administered and interpreted
         to the extent possible in a manner consistent with that intent.

16.2     Unsecured  General  Creditor.  Participants  and  their  Beneficiaries,
         heirs,  successors and assigns shall have no legal or equitable rights,
         interests  or claims in any  property  or  assets of an  Employer.  For
         purposes of the payment of benefits  under this Plan, any and all of an
         Employer's  assets  shall  be,  and  remain,  the  general,   unpledged
         unrestricted assets of the Employer. An Employer's obligation under the
         Plan shall be merely that of an unfunded and  unsecured  promise to pay
         money in the future.

16.3     Employer's  Liability.  An  Employer's  liability  for the  payment  of
         benefits shall be defined only by the Plan and the Plan  Agreement,  as
         entered into between the Employer and a Participant.  An Employer shall
         have no obligation to a Participant  under the Plan except as expressly
         provided in the Plan and his or her Plan Agreement.

16.4     Nonassignability. Neither a Participant nor any other person shall have
         any right to  commute,  sell,  assign,  transfer,  pledge,  anticipate,
         mortgage or  otherwise  encumber,  transfer,  hypothecate,  alienate or
         convey in advance  of actual  receipt,  the  amounts,  if any,  payable
         hereunder,  or any part thereof, which are, and all rights to which are
         expressly declared to be, unassignable and non-transferable. No part of
         the  amounts  payable  shall,  prior to actual  payment,  be subject to
         seizure,  attachment,  garnishment or sequestration  for the payment of
         any  debts,  judgments,  alimony  or  separate  maintenance  owed  by a
         Participant or any other person, be transferable by operation of law in
         the  event of a  Participant's  or any  other  person's  bankruptcy  or
         insolvency  or be  transferable  to a spouse as a result of a  property
         settlement or otherwise.

16.5     Not a Contract of  Employment.  The terms and  conditions  of this Plan
         shall not be deemed to constitute a contract of employment  between any
         Employer and the Participant. Such employment is hereby acknowledged to

                                       85

<PAGE>

         be an "at will" employment  relationship  that can be terminated at any
         time for any reason,  or no reason,  with or without cause, and with or
         without  notice,  unless  expressly  provided  in a written  employment
         agreement.  Nothing in this Plan shall be deemed to give a  Participant
         the right to be retained in the service of any  Employer,  to interfere
         with  the  right  of  any  Employer  to  discipline  or  discharge  the
         Participant at any time.

16.6     Furnishing  Information.  A Participant or his or her Beneficiary  will
         cooperate  with the  Committee by  furnishing  any and all  information
         requested  by the  Committee  and take  such  other  actions  as may be
         requested in order to facilitate the administration of the Plan and the
         payments of  benefits  hereunder,  including  but not limited to taking
         such physical examinations as the Committee may deem necessary.

16.7     Terms. Whenever any words are used herein in the masculine,  they shall
         be  construed  as though  they were in the  feminine in all cases where
         they  would so apply;  and  whenever  any words are used  herein in the
         singular or in the plural,  they shall be construed as though they were
         used in the  plural or the  singular,  as the case may be, in all cases
         where they would so apply.

16.8     Captions. The captions of the articles, sections and paragraphs of this
         Plan are for  convenience  only and shall  not  control  or affect  the
         meaning or construction of any of its provisions.

16.9     Governing Law.  Subject to ERISA,  the provisions of this Plan shall be
         construed and  interpreted  according to the internal laws of the State
         of California without regard to its conflicts of law principles.

16.10    Notice.  Any notice or filing  required or permitted to be given to the
         Committee  under  this  Plan  shall be  sufficient  if in  writing  and
         hand-delivered, or sent by registered or certified mail, to the address
         below:
                           Deferred Compensation Plan Committee
                           EMCON
                           400 South El Camino Real, Suite 1200
                           San Mateo, California 94402

         Such notice  shall be deemed  given as of the date of  delivery  or, if
         delivery is made by mail,  as of the date shown on the  postmark on the
         receipt for registration or certification.

         Any notice or filing required or permitted to be given to a Participant
         under this Plan shall be sufficient  if in writing and  hand-delivered,
         or sent by mail, to the last known address of the Participant.

16.11    Successors.  The  provisions  of this Plan  shall bind and inure to the
         benefit of the  Participant's  Employer and its  successors and assigns
         and the Participant and the Participant's designated Beneficiaries.

16.12    Spouse's  Interest.  The interest in the benefits hereunder of a spouse
         of  a  Participant   who  has   predeceased   the   Participant   shall
         automatically  pass to the Participant and shall not be transferable by
         such spouse in any manner,  including  but not limited to such spouse's
         will,  nor  shall  such  interest  pass  under  the  laws of  intestate
         succession.

                                       86

<PAGE>

16.13    Validity.  In case any  provision  of this  Plan  shall be  illegal  or
         invalid for any reason,  said illegality or invalidity shall not affect
         the  remaining  parts  hereof,  but this Plan  shall be  construed  and
         enforced  as if such  illegal  or  invalid  provision  had  never  been
         inserted herein.

16.14    Incompetent.  If the  Committee  determines  in its  discretion  that a
         benefit  under  this Plan is to be paid to a minor,  a person  declared
         incompetent  or to a person  incapable of handling the  disposition  of
         that  person's  property,  the  Committee  may  direct  payment of such
         benefit to the guardian, legal representative or person having the care
         and  custody  of such  minor,  incompetent  or  incapable  person.  The
         Committee  may require proof of minority,  incompetence,  incapacity or
         guardianship,  as it may deem appropriate  prior to distribution of the
         benefit. Any payment of a benefit shall be a payment for the account of
         the Participant and the Participant's Beneficiary,  as the case may be,
         and shall be a complete  discharge of any liability  under the Plan for
         such payment amount.

16.15    Court Order. The Committee is authorized to make any payments  directed
         by court  order in any  action in which the Plan or the  Committee  has
         been named as a party. In addition, if a court determines that a spouse
         or former spouse of a Participant has an interest in the  Participant's
         benefits  under the Plan in  connection  with a property  settlement or
         otherwise, the Committee, in its sole discretion, shall have the right,
         notwithstanding  any election  made by a  Participant,  to  immediately
         distribute   the   spouse's   or  former   spouse's   interest  in  the
         Participant's benefits under the Plan to that spouse or former spouse.

16.16    Distribution in the Event of Taxation:

         (a)      In  General.  If,  for any  reason,  all or any  portion  of a
                  Participant's  benefits under this Plan becomes taxable to the
                  Participant  prior to receipt,  a Participant may petition the
                  Committee  before a Change in  Control,  or the trustee of the
                  Trust after a Change in Control,  for a  distribution  of that
                  portion of his or her benefit  that has become  taxable.  Upon
                  the  grant  of  such a  petition,  which  grant  shall  not be
                  unreasonably  withheld (and, after a Change in Control,  shall
                  be granted), a Participant's  Employer shall distribute to the
                  Participant  immediately available funds in an amount equal to
                  the taxable  portion of his or her benefit (which amount shall
                  not exceed a Participant's unpaid vested Account Balance under
                  the Plan).  If the  petition  is  granted,  the tax  liability
                  distribution shall be made within 90 days of the date when the
                  Participant's  petition is granted.  Such a distribution shall
                  affect and reduce the benefits to be paid under this Plan.

         (b)      Trust.  If the Trust  terminates  in  accordance  with Section
                  3.6(e) of the  Trust and  benefits  are  distributed  from the
                  Trust to a Participant  in accordance  with that Section,  the
                  Participant's benefits under this Plan shall be reduced to the
                  extent of such distributions.

16.17    Insurance.  The  Employers,  on their  own  behalf  or on behalf of the
         trustee of the Trust, and, in their sole discretion,  may apply for and
         procure  insurance on the life of the Participant,  in such amounts and
         in such forms as the Trust may choose.  The Employers or the trustee of
         the Trust,  as the case may be, shall be the sole owner and beneficiary

                                       87

<PAGE>

         of  any  such  insurance.   The  Participant  shall  have  no  interest
         whatsoever  in any such policy or  policies,  and at the request of the
         Employers  shall  submit  to  medical   examinations  and  supply  such
         information  and  execute  such  documents  as may be  required  by the
         insurance  company or companies to whom the Employers  have applied for
         insurance.

16.18    Legal Fees To Enforce  Rights After Change in Control.  The Company and
         each Employer is aware that upon the occurrence of a Change in Control,
         the Board or the board of directors of a Participant's  Employer (which
         might then be composed of new members) or a shareholder  of the Company
         or the Participant's  Employer,  or of any successor  corporation might
         then cause or attempt to cause the Company, the Participant's  Employer
         or such  successor to refuse to comply with its  obligations  under the
         Plan  and  might   cause  or  attempt  to  cause  the  Company  or  the
         Participant's  Employer  to  institute,  or may  institute,  litigation
         seeking to deny  Participants the benefits  intended under the Plan. In
         these  circumstances,  the  purpose  of the Plan  could be  frustrated.
         Accordingly, if, following a Change in Control, it should appear to any
         Participant  that  the  Company,  the  Participant's  Employer  or  any
         successor  corporation has failed to comply with any of its obligations
         under the Plan or any  agreement  thereunder  or, if the Company,  such
         Employer or any other  person takes any action to declare the Plan void
         or  unenforceable  or institutes  any  litigation or other legal action
         designed  to deny,  diminish  or to recover  from any  Participant  the
         benefits   intended   to  be   provided,   then  the  Company  and  the
         Participant's Employer irrevocably authorize such Participant to retain
         counsel of his or her  choice at the  expense  of the  Company  and the
         Participant's  Employer (who shall be jointly and severally  liable) to
         represent such Participant in connection with the initiation or defense
         of any  litigation  or other  legal  action,  whether by or against the
         Company,  the Participant's  Employer or any , officer,  shareholder or
         other person affiliated with the Company, the Participant's Employer or
         any successor thereto in any jurisdiction.

         IN WITNESS  WHEREOF,  the Company  has signed this Plan  document as of
         __________, 199_.

                                          "Company"


                                          EMCON
                                             a California corporation


                                          By:



                                          Title:

                                       88





                                  EXHIBIT 21.1

                     SIGNIFICANT SUBSIDIARIES OF REGISTRANT



                                                                   PLACE OF 
NAME                                                             ORGANIZATION


Columbia Analytical Services, Inc.                                Washington

EMCON Alaska, Inc.                                                Alaska

ET Environmental Corporation (50/50 Joint Venture
with The Turner Construction Company)                             Delaware  
                              
Organic Waste Technologies, Inc.                                  Delaware

National Earth Products, Inc.                                     Pennsylvania

                                       89




                                  EXHIBIT 23.1

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the  incorporation  by  reference in the  Registration  Statements
(Form S-8 Nos.  33-83060,  33-61369 and  33-42186)  pertaining to the EMCON 1986
Incentive  Stock Option and 1988 Stock Option Plans,  the EMCON  Employee  Stock
Purchase Plan and the EMCON  Restricted  Stock Plan of our report dated February
18, 1998, with respect to the consolidated  financial statements and schedule of
EMCON  included in the Annual Report (Form 10-K) for the year ended December 31,
1997.


                                                              ERNST & YOUNG, LLP
San Francisco, California
March 26, 1998


                                       90

<TABLE> <S> <C>

<ARTICLE>                     5
<LEGEND>
 This  schedule  contains  summary  financial  information  extracted  from  the
consolidated balance sheets, consolidated statements of income, and consolidated
statements  of cash flows  included  in the  Company's  Form 10-K for the twelve
month  period  ended  December  31,  1997,  and is  qualified in its entirety by
reference to such financial statements and the notes thereto.
</LEGEND>                        
<CURRENCY>                                     U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                              JAN-2-1998
<PERIOD-START>                                 DEC-31-1996
<PERIOD-END>                                   JAN-2-1998
<EXCHANGE-RATE>                                1
<CASH>                                         6,106,000
<SECURITIES>                                   0
<RECEIVABLES>                                  37,652,000
<ALLOWANCES>                                   929,000
<INVENTORY>                                    2,238,000
<CURRENT-ASSETS>                               53,381,000
<PP&E>                                         31,699,000
<DEPRECIATION>                                 15,517,000
<TOTAL-ASSETS>                                 93,075,000
<CURRENT-LIABILITIES>                          20,798,000
<BONDS>                                        0
                          0
                                    0
<COMMON>                                       42,184,000
<OTHER-SE>                                     0
<TOTAL-LIABILITY-AND-EQUITY>                   93,075,000
<SALES>                                        109,502,000
<TOTAL-REVENUES>                               109,502,000
<CGS>                                          56,134,000
<TOTAL-COSTS>                                  56,134,000
<OTHER-EXPENSES>                               47,375,000
<LOSS-PROVISION>                               1,424,000
<INTEREST-EXPENSE>                             1,251,000
<INCOME-PRETAX>                                3,318,000
<INCOME-TAX>                                   1,161,000
<INCOME-CONTINUING>                            2,157,000
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   2,157,000
<EPS-PRIMARY>                                  .25
<EPS-DILUTED>                                  .25
        


</TABLE>


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