EARTH TECHNOLOGY CORP USA
SC 14D9, 1995-12-13
ENGINEERING SERVICES
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                              -------------------
 
                                 SCHEDULE 14D-9
                     SOLICITATION/RECOMMENDATION STATEMENT
                      PURSUANT TO SECTION 14(D)(4) OF THE
                        SECURITIES EXCHANGE ACT OF 1934
                              -------------------
 
                     THE EARTH TECHNOLOGY CORPORATION (USA)
                           (Name of Subject Company)

                     THE EARTH TECHNOLOGY CORPORATION (USA)
                      (Name of Person(s) Filing Statement)

                     COMMON STOCK, PAR VALUE $.10 PER SHARE
                         (Title of Class of Securities)

                                  270315-10-4
                     (CUSIP Number of Class of Securities)

                            CHARLES S. ALPERT, ESQ.
                                GENERAL COUNSEL
                         100 WEST BROADWAY, SUITE 5000
                          LONG BEACH, CALIFORNIA 90802
                                 (310) 495-4449

                 (Name, address and telephone number of person
               authorized to receive notice and communications on
                   behalf of the person(s) filing statement)
                                With a copy to:
 
                                Joseph J. Giunta
                      Skadden, Arps, Slate, Meagher & Flom
                             300 South Grand Avenue
                         Los Angeles, California 90071
                                 (213) 687-5000
 
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<PAGE>

ITEM 1. SECURITY AND SUBJECT COMPANY.
 
    The name of the subject company is The Earth Technology Corporation (USA), a
Delaware corporation (the "Company"), and the address of the principal executive
offices of the Company is 100 West Broadway, Suite 5000, Long Beach, California
90802-4443. The title of the class of equity securities to which this statement
relates is the common stock, par value $.10 per share, of the Company (the
"Shares").
 
ITEM 2. TENDER OFFER OF THE PURCHASER.
 
    This statement relates to a tender offer by T1 Acquisition Corp. (the
"Purchaser"), a Delaware corporation and a wholly owned subsidiary of Tyco
International Ltd. ("Tyco"), a Massachusetts corporation, disclosed in a Tender
Offer Statement on Schedule 14D-1 (the "Schedule 14D-1"), dated December 13,
1995, to purchase all outstanding Shares at $8.00 per Share, net to the seller
in cash, upon the terms and subject to the conditions set forth in the Offer to
Purchase (the "Offer to Purchase"), dated December 13, 1995, and the related
Letter of Transmittal (which together constitute the "Offer").
 
    The Offer is being made by the Purchaser pursuant to an Agreement and Plan
of Merger (the "Merger Agreement"), dated as of December 8, 1995, by and among
Tyco, the Purchaser and the Company. The Merger Agreement provides, among other
things, that as soon as practicable following the consummation of the Offer,
upon the terms and subject to the conditions contained therein, the Purchaser
will be merged with and into the Company (the "Merger"), with the Company being
the surviving entity (the "Surviving Corporation"). A copy of the Merger
Agreement is attached hereto as Exhibit 1 and incorporated herein by reference.
 
    Based on the information in the Offer to Purchase, the principal executive
offices of the Purchaser and Tyco are located at One Tyco Park, Exeter, New
Hampshire 03833.
 
ITEM 3. IDENTITY AND BACKGROUND.
 
    (a) The name and address of the Company, which is the person filing this
statement, are set forth in Item 1 above.
 
    (b) Each material contract, agreement, arrangement and understanding and
actual or potential conflict of interest between the Company or its affiliates
and (i) its executive officers, directors or affiliates and (ii) the Purchaser,
its executive officers, directors or affiliates, is described in the attached
Schedule I or set forth below.
 
           (i) EXECUTIVE OFFICERS, DIRECTORS OR AFFILIATES OF THE COMPANY.
 
    Employment Agreements. The Company has entered into executive employment
agreements with each of its executive officers, the terms of which are
summarized under the caption "EXECUTIVE COMPENSATION--Employment Agreements" at
pages 121 through 122 of the Company's Proxy Statement, dated January 19, 1995,
for its Annual Meeting of Stockholders, which was held on February 23, 1995 (the
"1995 Proxy Statement"). A copy of the pertinent pages of the 1995 Proxy
Statement is attached as Exhibit 5 hereto and is incorporated herein by
reference. Since the date of the 1995 Proxy Statement, Richard R. Pannell
entered into an Agreement for Separation of Employment, dated May 9, 1995, and
is no longer employed by the Company.
 
    Following the Merger, the Purchaser intends to provide certain additional or
substitute compensation arrangements for the executive officers and certain
other officers of the Company. The information set forth under the caption "The
Merger Agreement--Employment and Benefit Arrangements" and "--Certain
Arrangements" in Section 13 of the Offer to Purchase, a copy of which is being
mailed to stockholders of the Company together with this Schedule 14D-9, is
incorporated herein by reference.
 
                                       1
<PAGE>
    Stock Option Plans. The Company has adopted a plan that provides for the
granting of non-qualified stock options, performance stock options and
restricted stock to certain employees of the Company, including the executive
officers, which plan is summarized under the caption "AMENDMENT TO THE EARTH
TECHNOLOGY CORPORATION (USA) 1987 STOCK OPTION PLAN" at pages 126 through 131 of
the 1995 Proxy Statement. A copy of the pertinent pages of the 1995 Proxy
Statement is attached as Exhibit 6 hereto and incorporated herein by reference.
 
    The Company has also adopted a plan that provides for the granting of
non-qualified stock options to directors of the Company, which plan is
summarized under the caption "AMENDMENT TO THE EARTH TECHNOLOGY CORPORATION
DIRECTOR OPTION PLAN" at pages 132 through 134 of the 1995 Proxy Statement. A
copy of the pertinent pages of the 1995 Proxy Statement is attached as Exhibit 7
hereto and incorporated herein by reference. Upon termination of service as a
director, each participant's unvested options will immediately become
exercisable.
 
    Under the terms of the Merger Agreement, all outstanding Company options,
whether vested or not, will be converted into options to purchase the common
stock, par value $.50 per share, of Tyco and all outstanding Company warrants
and restricted stock will be converted into the right to receive cash, subject
in the case of warrants to payment of the exercise price in respect thereof. The
information set forth under the caption "The Merger Agreement--Stock Options and
Warrants" in Section 13 of the Offer to Purchase, a copy of which is being
mailed to stockholders of the Company together with this Schedule 14D-9, is
incorporated herein by reference.
 
    Certain Transactions. Certain transactions between the Company and certain
of its directors and officers are summarized under the caption "ELECTION OF
DIRECTORS--HazWaste Nominees" at pages 113 through 114 of the 1995 Proxy
Statement. A copy of the pertinent pages of the 1995 Proxy Statement is attached
as Exhibit 8 hereto and incorporated herein by reference.
 
    Director Liability and Indemnification. Under the Delaware General
Corporation Law (the "DGCL"), a corporation has the power to indemnify any
director or officer against expenses, judgments, fines and settlements incurred
in a proceeding, other than an action by or in the right of the corporation, if
the person acted in good faith and in a manner that the person reasonably
believed to be in the best interests of the corporation or not opposed to the
best interests of the corporation, and, in the case of a criminal proceeding,
had no reason to believe the conduct of the person was unlawful. In the case of
an action by or in the right of the corporation, the corporation has the power
to indemnify any officer or director against expenses incurred in defending or
settling the action if such person acted in good faith and in a manner such
person reasonably believed to be in or not opposed to the best interests of the
corporation; provided, however, that no indemnification may be made when a
person is adjudged liable to the corporation, unless and only to the extent that
the Court of Chancery or the court in which such action or suit was brought
determines such person is fairly and reasonably entitled to indemnity for
expenses, and then such indemnification may be made only to the extent that such
court shall determine. The DGCL requires that to the extent an officer or
director of a corporation is successful on the merits or otherwise in defense of
any third-party or derivative proceeding, or in defense of any claim, issue or
matter therein, the corporation must indemnify the officer or director against
expenses incurred in connection therewith.
 
    The Company's Certificate of Incorporation limits the personal liability of
a director to the Company or its stockholders for monetary damages for breach of
fiduciary duty as a director; provided, however, that such provision does not
limit director monetary liability for: (i) breaches of the director's duty of
loyalty to the Company or its stockholders; (ii) acts or omissions not in good
faith or involving intentional misconduct or knowing violations of laws; (iii)
the payment of unlawful dividends or unlawful stock repurchases or redemptions;
or (iv) transactions in which the director received an improper personal
benefit.
 
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<PAGE>

    The Company's Certificate of Incorporation and Bylaws provide that the
Company will, to the fullest extent permitted by Delaware law, indemnify all
persons whom it has the power to indemnify against all of the costs, expenses
and liabilities incurred by them by reason of having been officers or directors
of the Company, or any subsidiary of the Company or of any other corporation for
which such persons acted as officer or director at the request of the Company.
 
    The Merger Agreement contains covenants that require the Surviving
Corporation from and after the effective time of the Merger (the "Effective
Time"), to indemnify the current officers and directors of the Company to the
full extent permitted by Delaware law, the Company's Certificate of
Incorporation and Bylaws as in effect from time to time for acts and omissions
occurring prior to the Effective Time and, subject to certain limitations, to
provide the current directors and officers an insurance and indemnification
policy that provides coverage for events occurring at or prior to the Effective
Time that is no less favorable than the existing policy for a period of not less
than six years after the Effective Time. The information set forth under the
caption "The Merger Agreement--Indemnification" in Section 13 of the Offer to
Purchase, a copy of which is being mailed to stockholders of the Company
together with this Schedule 14D-9, is incorporated herein by reference.
 
           (ii) THE PURCHASER OR ITS EXECUTIVE OFFICERS, DIRECTORS OR
       AFFILIATES.
 
    The Merger Agreement. A summary of the terms of the Merger Agreement is set
forth in Section 13 of the Offer to Purchase, a copy of which is being mailed to
stockholders of the Company together with this Schedule 14D-9. The information
contained therein is incorporated herein by reference.
 
    Confidentiality Agreement. On August 29, 1995, Tyco and the Company executed
a confidentiality agreement pursuant to which the Company agreed to furnish
certain information to Tyco and Tyco agreed to treat such information as
confidential and to use such information solely in connection with its
evaluation of a possible transaction with the Company. The term of the
confidentiality agreement is three years. A copy of the Confidentiality
Agreement is attached as Exhibit 9 hereto and incorporated herein by reference.
 
ITEM 4. THE SOLICITATION OR RECOMMENDATION.
 
    (A) RECOMMENDATION OF THE BOARD OF DIRECTORS.
 
    Upon recommendation of the Finance Committee, the Board of Directors has
determined that the Offer and the Merger are fair to, and in the best interests
of, the Company and its stockholders, has approved the Merger Agreement, the
Offer and the Merger, and recommends that the Company's stockholders accept the
Offer and tender their Shares pursuant to the Offer.
 
    (B) BACKGROUND; REASONS FOR THE RECOMMENDATION.
 
    At various times during the past several years, the Board of Directors and
Management have examined the Company's competitive position and outlook and
considered various strategic alternatives with a view toward increasing
stockholder values. In addition, the Company has, from time to time, received
inquiries from entities seeking strategic partners, none of which, however,
proceeded to the level of serious negotiations.
 
    In June, 1995 the Company held a strategic planning session with its
top-level managers. During this session, the managers identified and discussed
the challenges to future growth that, in their view, were the most important
factors to be addressed by the Company. Three issues emerged from this session
as strategically important to facilitate the future growth of the Company:
increased capital to support infrastructure and contract operations; reduced
leverage to support higher remediation bonding requirements; and increased
capital to support design, build, own and operate projects.
 
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    Management determined that the Company needed to act swiftly in order to
capitalize upon the "window of opportunity" presented by the growing
infrastructure and contract operations sector. To that end, on August 2, 1995,
Diane C. Creel, Chairwoman, Chief Executive Officer and President of the Company
and Creighton K. Early, Chief Financial Officer and Executive Vice President,
met with The Environmental Finance Consulting Group, Inc. ("EFCG") in New York
to discuss alternatives that might be available to the Company to meet its need
for additional capital. At the meeting, Ms. Creel and Mr. Early indicated a
receptiveness to exploring a variety of options, including the option of being
acquired by a larger company with greater financial resources.
 
    On or about August 8, 1995, EFCG, which had advised Tyco from time to time
with respect to the environmental engineering and consulting industry,
approached Tyco concerning a possible acquisition of the Company. In response,
Tyco requested that EFCG contact the Company on behalf of Tyco to present Tyco's
potential interest in such a transaction. Following such contact, on August 18,
1995, a conference call was arranged including J. Brad McGee, Vice
President--Specialty Products of Tyco, Ms. Creel and Mr. Early to discuss the
Company and opportunities for Tyco in the Company's industry and to exchange
information about the Company and Tyco. On August 29, 1995, Tyco and the Company
executed a confidentiality agreement.
 
    On September 20, 1995, Mr. McGee met with Ms. Creel, Mr. Early and William
Cretens, President of the Company's Operations Services subsidiary, to exchange
further information. During October 1995, executive officers and other
representatives of Tyco and the Company conducted a series of telephone
conversations and visits to the respective headquarters of Tyco and the Company
to analyze a potential acquisition of the Company by Tyco and explore possible
cost savings and synergies that could be achieved through such a business
combination.
 
    On October 10, 1995, the Company engaged Alex. Brown & Sons Incorporated
("Alex. Brown") to provide financial advisory and investment banking services to
the Company. At that time, Ms. Creel informed representatives of Alex. Brown of
the Company's contacts with Tyco and requested that representatives of Alex.
Brown attend all future meetings with Tyco. On October 17, 1995, Mr. McGee met
with Ms. Creel, Mr. Early and representatives of Alex. Brown to discuss the
Company's business.
 
    On November 9, 1995, Robert F. Sharpe, Jr., Vice President of Tyco, and Mr.
McGee met at the Company's headquarters with Ms. Creel, Mr. Early and
representatives of Alex. Brown to discuss Tyco's preliminary valuation model for
the Company. On November 9, 1995, Robert F. Sharpe, Jr., Vice President of Tyco,
and Mr. McGee met at the Company's headquarters with Ms. Creel, Mr. Early and
representatives of Alex. Brown to discuss Tyco's preliminary valuation model for
the Company. Ms. Creel indicated that she did not believe that this preliminary
model produced a valuation which fully reflected the value of the Company,
particularly in light of recent acquisitions in the environmental engineering
and consulting industry and potential synergies that Tyco could obtain in an
acquisition of the Company. Ms. Creel further indicated that she did not believe
that such a valuation would be favorably viewed by the Finance Committee of the
Company's Board of Directors. In order to further discussions, Messrs. Sharpe
and McGee agreed to examine additional information relating to these factors and
to do further analyses in order to reassess their preliminary valuation of the
Company.
 
    On November 13, 1995, Mr. McGee informed Ms. Creel that Tyco had increased
its valuation of the Company based upon additional information and newly
identified synergies. He stated that Tyco might be willing to offer $7.50 per
Share subject to approval of the Board of Directors of Tyco on December 6, 1995
and prompt consummation of the transaction thereafter. Ms. Creel indicated that
she would present this information to the Finance Committee.
 
    On November 15, 1995, the Finance Committee held a telephonic meeting during
which Ms. Creel summarized the discussions with Tyco. The Finance Committee
discussed the revised offer and indicated that $7.50 was an interesting
expression of interest but that it was not prepared to recommend
 
                                       4
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such an offer at that time. The Finance Committee concluded that it would be
supportive of an offer in the range of $8.00 to $8.50 per Share.
 
    On November 16, 1995, a representative of Alex. Brown informed Mr. Sharpe
that Tyco's interest in the Company had been discussed by the Finance Committee
with inconclusive results. The Alex. Brown representative invited Tyco to
furnish any additional information that it might wish to communicate for
consideration at a reconvened meeting of the Finance Committee on November 20,
1995.
 
    On November 20, 1995, Mr. Sharpe informed the Alex. Brown representative
that Tyco was prepared to make an offer of $7.75 per Share. The Finance
Committee reconvened later that day via telephonic meeting to discuss Tyco's
revised proposal. The Finance Committee expressed appreciation for the $7.75
expression of interest but concluded that support for the transaction would not
be strong at that level. The Finance Committee reaffirmed that it would be
supportive of an offer at $8.00 per Share or above. The Finance Committee then
instructed representatives of Alex. Brown to convey this information to Tyco and
to obtain further information concerning the non-price terms of any potential
offer. On the evening of November 20, 1995, Mr. Sharpe indicated to a
representative of Alex. Brown that Tyco would need to perform an in-depth
investigation of the Company with favorable results to be able to reach a higher
valuation for the Company. However, depending on the outcome of such
investigation, Tyco's management could be in a position to recommend a price of
$8.00 per Share to the Board of Directors of Tyco.
 
    During the week of November 27, 1995, representatives of Tyco conducted a
due diligence review of the Company's businesses. At the conclusion of its
review, Dennis Kozlowski, Chief Executive Officer of Tyco, indicated to Ms.
Creel that he was prepared to recommend to Tyco's Board of Directors that an
offer of $8.00 per Share be made.
 
    On December 1, 1995, Tyco furnished to the Company a draft merger agreement
for the acquisition of the Company by Tyco. On December 4, 1995, the Board of
Directors of the Company held a telephonic meeting to discuss Tyco's
contemplated offer of $8.00 per Share and the terms of the draft merger
agreement. Ms. Creel informed the Board of Directors of the background of the
negotiations to date and of the Finance Committee's support for such an offer.
The Board of Directors indicated its interest in the offer and instructed Ms.
Creel to continue negotiating the terms of the offer.
 
    On December 6, 1995, at its regularly scheduled meeting, the Board of
Directors of Tyco considered the proposal to acquire the Company and heard an
informational presentation delivered by Ms. Creel. Following such presentation
and presentations of Tyco's management, the Board of Directors voted to approve
an offer to acquire the Company at $8.00 per Share substantially on the terms
set forth in the Merger Agreement.
 
    On December 7, 1995, the Board of Directors of the Company met to consider
the Tyco offer. The Board of Directors reviewed the principal terms of the
Merger Agreement and received the oral opinion of Alex. Brown, which opinion was
later confirmed in writing, that the offer price of $8.00 per Share was fair to
the stockholders of the Company from a financial point of view. Thereafter, the
Board of Directors of the Company approved the Merger Agreement, the Offer and
the Merger. On December 7 and 8, 1995, representatives of Tyco and the Company
finalized the Merger Agreement, including completion of the schedules thereto.
On December 8, 1995, Tyco and the Company executed the Merger Agreement. Public
disclosure of the Merger Agreement was made on the morning of the next business
day, December 11, 1995, prior to the opening of trading of the Shares on The
Nasdaq National Market.
 
    In reaching its conclusions and recommendations described above, the Finance
Committee and the Board of Directors considered the following factors:
 
        (i) the terms and conditions of the Offer and the Merger Agreement;
 
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        (ii) the financial condition, results of operations, business and
    prospects of the Company, including the need for additional capital to
    facilitate the growth of the business and the prospects for the Company if
    it were to remain independent;
 
        (iii) the oral and written presentations by Alex. Brown at the December
    4, and December 7, 1995 Board of Directors meetings and the oral opinion of
    Alex. Brown, which was later confirmed in a written opinion dated December
    8, 1995, to the effect that, as of the date of the opinion, the
    consideration to be received by the stockholders pursuant to the Offer and
    the Merger is fair from a financial point of view to the stockholders. The
    full text of Alex. Brown's written opinion which sets forth the procedures
    followed, the factors considered and the assumptions made by Alex. Brown is
    attached as Exhibit 4 hereto and is incorporated herein by reference.
    STOCKHOLDERS ARE URGED TO READ THE OPINION OF ALEX. BROWN CAREFULLY AND IN
    ITS ENTIRETY;
 
        (iv) the trading price of the Shares over the past year and that the
    Offer of $8.00 per Share represents a premium of approximately 36.2% over
    the closing sale price of $5 7/8 for the Shares on December 8, 1995, the
    last trading day prior to the public announcement by Tyco of its interest in
    acquiring the Company for $8.00 per Share;
 
        (v) the market trading multiples for selected environmental engineering
    and consulting companies, prices paid in selected recent acquisition
    transactions in the environmental engineering and consulting industry and a
    discounted cash flow analysis of the Company;
 
        (vi) the recommendation of Management that the Offer and Merger be
    approved;
 
        (vii) the fact that the Merger Agreement, which prohibits the Company
    and its subsidiaries from initiating, soliciting or encouraging, directly or
    indirectly, any potential Acquisition Proposal (as defined in the Merger
    Agreement), does permit the Company to furnish information to, and enter
    into discussions and negotiations with any third person or entity that makes
    an unsolicited bona fide proposal in writing to engage in an Acquisition
    Proposal transaction that the Board of Directors of the Company in good
    faith determines represents a financially superior transaction for the
    stockholders of the Company as compared to the Offer and the Merger if any
    only to the extent that (i) the Board of Directors determines, after
    consultation with outside counsel, that failure to take such action would be
    inconsistent with the compliance by the Board of Directors with its
    fiduciary duties to stockholders imposed by law and (ii) the Company
    notifies Tyco in writing prior to or concurrently with furnishing such
    information or entering into such discussions or negotiations and keeps Tyco
    informed of the status of such discussions or negotiations;
 
        (viii) the representation of Tyco and the Purchaser that they have
    sufficient funds available to them to consummate the Offer and the Merger
    and the fact that the Offer is not subject to a financing condition;
 
        (ix) the scope and detail of the negotiating process that led to the
    finalization of the Merger Agreement, including the fact that the Company
    negotiated a purchase price significantly higher than Tyco's preliminary
    valuation;
 
        (x) the fact that, in Management's view, a public auction of the Company
    prior to a decision to sell the Company, could cause harm to the Company and
    would be significantly disruptive to existing operations; and
 
        (xi) the provisions in the Merger Agreement that require the Company to
    pay to Tyco a termination fee of $2.4 million and reimburse Tyco for its
    documented out-of-pocket expenses not to exceed $200,000 if the Merger
    Agreement is terminated under certain circumstances, which the Board of
    Directors recognized could potentially foreclose competing offers at
    approximately the same price level as the Offer, but would not likely
    foreclose competing offers at price levels significantly higher than the
    Offer.
 
                                       6
<PAGE>

    Neither the Finance Committee nor the Board of Directors assigned relative
weights to the foregoing factors or determined that any factor was of particular
importance. Rather, the Finance Committee and the Board of Directors viewed
their position and recommendations as being based on the totality of the
information presented to and considered by them.
 
    The Board of Directors recognized that, while the consummation of the Offer
gives the stockholders the opportunity to realize a significant premium over the
prices at which the Shares were traded prior to the public announcement of the
Offer and the Merger, tendering Shares in the Offer would eliminate the
opportunity for stockholders to participate in the future growth and profits of
the Company.
 
    It is expected that, if the Shares were not to be purchased by the Purchaser
in accordance with the terms of the Offer or if the Merger were not to be
consummated, the Company's current management, under the general direction of
the Board of Directors, would continue to manage the Company as an ongoing
business in accordance with the Company's current long-term strategic plan.
 
ITEM 5. PERSONS RETAINED, EMPLOYED OR TO BE COMPENSATED.
 
    Alex. Brown was retained by the Company to provide financial advisory and
investment banking services to the Company. Pursuant to an engagement letter
between the Company and Alex. Brown (the "Engagement Letter"), if the Offer and
the Merger are consummated, the Company will pay Alex. Brown a transaction fee
of approximately $1.2 million (1.125% of the Aggregate Consideration (as defined
in the Engagement Letter)) for acting as financial advisor in connection with
the transaction. Alex. Brown has been paid a retainer fee of $50,000 and is
receiving a fee of $250,000 upon delivery of its written opinion. Such fees will
be credited against the transaction fee to be paid to Alex. Brown by the Company
pursuant to the Engagement Letter. The Company has also agreed to reimburse
Alex. Brown for its reasonable out-of-pocket expenses, including reasonable fees
and disbursements of its counsel, incurred by Alex. Brown in carrying out its
duties under the Engagement Letter and to indemnify and hold harmless Alex.
Brown and each of its directors, officers, agents, employees and controlling
persons for certain liabilities.
 
    Alex. Brown has provided certain investment banking services to the Company
from time to time for which it has received customary compensation. In the
ordinary course of its business, Alex. Brown may actively trade the debt and
equity securities of the Company for its own account and for the accounts of
customers and, accordingly, may at any time hold a long or short position in
such securities.
 
    Except as disclosed herein, neither the Company nor any person acting on its
behalf currently intends to employ, retain or compensate any other person to
make solicitations or recommendations to security holders on its behalf
concerning the Offer or the Merger.
 
ITEM 6. RECENT TRANSACTIONS AND INTENT WITH RESPECT TO SECURITIES.
 
    (a) Except as set forth below, no transactions in the Shares have been
effected during the past 60 days by the Company or, to the best of the Company's
knowledge, by any executive officer, director, affiliate or subsidiary of the
Company. On November 16, 1995, Theodore A. Barten, the Executive Vice President
Commercial, EARTH TECH Consulting Engineering, sold 500 Shares at a price of
$4.69 per Share. On or around October 30, 1995, Ward A. Johnson, a director of
the Company, transferred 32,000 Shares to his children and grandchildren as part
of a gift transaction. On November 24, 1995, the Company granted 974 option
shares at an exercise price of $1.28 under the Director Option Plan to each of
Charles D. Applequist, James E. Clark, Richard J. Heckmann, Ward W. Johnson,
Larry J. Lawrence and Martha L. Robinson as full renumeration for their services
as directors for one calendar quarter.
 
                                       7
<PAGE>

    (b) To the best of the Company's knowledge, to the extent permitted by
applicable securities laws, rules or regulations, except for gifts of Shares to
family members or charitable organizations, each executive officer, director,
affiliate and subsidiary of the Company currently intends to tender all Shares
that are held of record or beneficially owned by such person.
 
ITEM 7. CERTAIN NEGOTIATIONS AND TRANSACTIONS BY SUBJECT COMPANY.
 
    (a) Except as set forth in this Schedule 14D-9, the Company is not engaged
in any negotiation in response to the Offer that relates to or would result in
(i) an extraordinary transaction, such as a merger or reorganization involving
the Company or any subsidiary of the Company; (ii) a purchase, sale or transfer
of a material amount of assets by the Company or any subsidiary of the Company;
(iii) a tender offer for or other acquisition of securities by or of the
Company; or (iv) any material change in the present capitalization or dividend
policy of the Company.
 
    (b) Except as described above or in Items 3(b) or 4 above, there are no
transactions, resolutions of the Board of Directors, agreements in principle or
signed contracts in response to the Offer that relate to or would result in one
or more of the events referred to in Item 7(a) above.
 
ITEM 8. ADDITIONAL INFORMATION TO BE FURNISHED.
 
    The Information Statement attached as Schedule I hereto is being furnished
in connection with the possible designation by Tyco, pursuant to the Merger
Agreement, of certain persons to be appointed to the Board of Directors other
than at a meeting of the Company's stockholders.
 
ITEM 9. MATERIAL TO BE FILED AS EXHIBITS.
 
<TABLE><CAPTION>

 EXHIBIT
   NO.
- ----------
<S>         <C>
Exhibit 1   Agreement and Plan of Merger, dated as of December 8, 1995, among Tyco
            International Ltd., T1 Acquisition Corp. and The Earth Technology Corporation
            (USA).
Exhibit 2   Press Release issued jointly by Tyco International Ltd. and The Earth Technology
            Corporation (USA), dated December 11, 1995.
Exhibit 3   Letter to Stockholders of The Earth Technology Corporation (USA), dated December
            13, 1995.1
Exhibit 4   Opinion of Alex. Brown & Sons Incorporated, dated December 8, 1995.1
Exhibit 5   Pages 121 through 122 of the 1995 Proxy Statement relating to executive
            employment agreements.
Exhibit 6   Pages 126 through 131 of the 1995 Proxy Statement relating to The Earth
            Technology Corporation (USA) 1987 Stock Plan.
Exhibit 7   Pages 132 through 134 of the 1995 Proxy Statement relating to The Earth
            Technology Corporation (USA) 1991 Director Option Plan.
Exhibit 8   Pages 113 through 114 of the 1995 Proxy Statement relating to certain
            transactions with certain directors and officers of The Earth Technology
            Corporation (USA).
Exhibit 9   Confidentiality Agreement, dated as of August 29, 1995, by and between The Earth
            Technology Corporation (USA) and Tyco International Ltd.
</TABLE>
 
- ------------
 
1 Included in copies mailed to stockholders.
 
                                       8
<PAGE>
                                   SIGNATURE
 
    After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
 
Dated: December 13, 1995
                                         THE EARTH TECHNOLOGY CORPORATION (USA)
 
                                                    /s/ DIANE C. CREEL
                                         .......................................
 
                                         By: Diane C. Creel
                                          Title: Chairwoman, Chief Executive
                                         Officer and President
<PAGE>
                                                                      SCHEDULE I
 
                     THE EARTH TECHNOLOGY CORPORATION (USA)
                         100 West Broadway, Suite 5000
                          Long Beach, California 90802
                                 (310) 495-4449
                       INFORMATION STATEMENT PURSUANT TO
                        SECTION 14(F) OF THE SECURITIES
                 EXCHANGE ACT OF 1934 AND RULE 14F-1 THEREUNDER
 
                              -------------------
 
    This Information Statement is being mailed on or about December 13, 1995 as
a part of the Company's Solicitation/Recommendation Statement on Schedule 14D-9
(the "Schedule 14D-9") to the holders of record of the Shares at the close of
business on or about December 11, 1995. You are receiving this Information
Statement in connection with the possible election of persons designated by
Tyco, to a majority of the seats on the Board of Directors of the Company. The
Merger Agreement requires the Company, at the request of Tyco, to take all
action necessary to cause Tyco's designees to be elected to the Board of
Directors under the circumstances described therein. This Information Statement
is required by Section 14(f) of the Exchange Act and Rule 14f-1 thereunder. See
"Board of Directors and Executive Officers--Right to Designate Directors; Tyco
Designees."
 
    You are urged to read this Information Statement carefully. You are not,
however, required to take any action. Capitalized terms used herein and not
otherwise defined herein shall have the meaning set forth in the Schedule 14D-9.
 
    Pursuant to the Merger Agreement, the Purchaser commenced the Offer on
December 13, 1995. The Offer is scheduled to expire at 12:00 midnight, New York
City time, on Thursday, January 11, 1996 unless the Offer is extended.
 
    The information contained in this Information Statement concerning the
Purchaser has been furnished to the Company by the Purchaser, and the Company
assumes no responsibility for the accuracy or completeness of such information.
 
                   BOARD OF DIRECTORS AND EXECUTIVE OFFICERS
 
GENERAL
 
    The Shares are the only class of voting securities of the Company
outstanding. Each Share has one vote. As of December 1, 1995, there were
8,751,636 Shares outstanding. The Board of Directors currently consists of nine
members and there are currently no vacancies on the Board of Directors. Each
director holds office until such director's successor is duly elected and
qualified or until such director's earlier resignation, removal, death or
incapacity.
 
RIGHT TO DESIGNATE DIRECTORS; TYCO DESIGNEES
 
    Pursuant to the Merger Agreement and promptly upon the purchase of the
Shares pursuant to the Offer, Tyco will be entitled to designate such number of
directors (the "Tyco Designees"), rounded up to the next whole number, on the
Board of Directors of the Company as will give Tyco, subject to compliance with
Section 14(f) of the Exchange Act, representation on the Board of Directors
equal to the product of (a) the total number of directors on the Board of
Directors and (b) the percentage that the number of Shares purchased by Tyco
bears to the number of Shares outstanding and the Company shall, upon request by
Tyco, promptly increase the size of the Board of Directors and/or exercise its
reasonable best efforts to secure the resignations of such number of directors
as is necessary to enable
 
                                      I-1
<PAGE>
the Tyco Designees to be elected to the Board of Directors and shall cause
Tyco's Designees to be so elected. Prior to the Effective Time, the Company and
Tyco shall use all reasonable efforts to ensure that the Board of Directors of
the Company at all times includes at least three directors who were directors on
the date of the Merger Agreement or persons designated by such directors and
neither were designated by Tyco nor are employees of the Company.
 
    Tyco has informed the Company that it will select the Tyco Designees from
the directors and executive officers listed in Schedule I to the Offer to
Purchase, a copy of which is being mailed to the Company's stockholders together
with this Schedule 14D-9. Tyco has also informed the Company that each of the
directors and executive officers listed in Schedule I to the Offer to Purchase
has consented to act as a director, if so designated. The information on such
Schedule I is incorporated herein by reference. It is expected that none of the
Tyco Designees will receive any compensation for services performed in his or
her capacity as a director of the Company.
 
    The Certificate of Incorporation and Bylaws of the Company provide that the
Board of Directors shall consist of not less than five nor more than eleven
directors, with the exact number to be fixed in the Bylaws. The Bylaws provide
that the number of directors shall be seven until changed by the Board of
Directors. The Board of Directors has by resolution set the number of directors
at nine. The directors are currently divided into three classes, with members of
each class holding office for staggered three-year terms.
 
DIRECTORS OF THE COMPANY
 
    The names of the current directors, their ages as of December 1, 1995, all
positions and offices held with the Company, and their business experience
during the last five years are set forth below. There are no family
relationships among any of the directors or executive officers of the Company
except as indicated below. As indicated below, some of the current directors may
resign effective immediately following the purchase of Shares by the Purchaser
pursuant to the Offer.
 
    The Company's Certificate of Incorporation was amended in May 1994 to create
a classified Board of Directors composed of three classes. Subsequent to their
initial election following the amendment to the Company's Certificate of
Incorporation, each class of directors is subject to election every third year
and will serve a three-year term. Each director will serve until his or her
respective successor is duly elected and qualified.
 
  Class I Directors For Term Expiring in 1998:
 
    James E. Clark, 66, was elected as a director in 1993. Mr. Clark is a former
President of Western Operations for Prudential Insurance from 1978 to June 1990.
In June 1990, he became a consultant to and is a director of Prudential Real
Estate Affiliates, which is engaged in residential real estate sales. Mr. Clark
is also a director of United States Filter Corporation, Managed Health Network,
Inc. and Business Connection, Inc.
 
    Martha T. Robinson, 40, was elected as a director in 1994. Ms. Robinson is a
Vice President of Prudential Equity Investors, Inc., where she has been an
officer since 1986. Prudential Equity Investors, Inc., a venture capital and
buyout firm, is the general partner of Prudential Venture Partners II.
 
  Class II Directors For Term Expiring in 1996:
 
    Charles D. Applequist, 61, was elected as a director in 1981. Mr. Applequist
is a Vice President of Minnesota Gas Company, Inc. Since 1959, Mr. Applequist
has served Minnesota Gas Company as an engineer and in a number of managerial
functions.
 
    Creighton K. Early, 42, was elected as a director in 1993. Mr. Early has
been the Chief Financial Officer of the Company since June 1989. In October
1994, he was also appointed Executive Vice
 
                                      I-2
<PAGE>

President. From April 1988 to June 1989, Mr. Early was the President and Chief
Operating Officer of BCL Associates, Inc., which was acquired by the Company in
June 1989.
 
    Ward W. Johnson, 63, was elected as a director in 1995. Mr. Johnson is a
former director of HazWaste Industries Incorporated ("HazWaste"), a subsidiary
acquired by the Company in February 1995. Since its founding in 1987, Mr.
Johnson served as Chairman of HazWaste's Audit Committee and served as Chairman
of its Compensation Committee. From 1971 to 1987, Mr. Johnson was associated
with Bralley-Willett Tank Lines, Inc., where he held several executive
positions, including Chairman and President, and was the majority stockholder.
From 1955 to 1971, Mr. Johnson held engineering and management positions with
Exxon Corporation. Mr. Johnson presently also serves on the advisory board of
the Jefferson Bank in Richmond, Virginia.
 
    Larry T. Lawrence, 53, was elected as a director in 1994. Mr. Lawrence
served as Chairman of the Board of Directors of Summit Environmental Group,
Inc., now a subsidiary of the Company, between July 1988 and May 1994. Mr.
Lawrence is the Managing General Partner of Lawrence Venture Partners, which is
the general partner of Lawrence, Tyrrell, Ortale & Smith, a private equity fund
established in 1985, and of Lawrence, Tyrrell, Ortale & Smith II, L.P., a
private equity investment fund established in 1990. Mr. Lawrence also serves as
a director of Autotote Corporation, Immuno Med Corporation, Longview
Development, Inc. and Globe Tax Services Incorporated.
 
  Class III Directors For Term Expiring in 1997:
 
    Diane C. Creel, 47, was elected as a director in 1985. Ms. Creel has been
Chairwoman of the Board since March 1993, Chief Executive Officer since January
1993 and President since September 1988. Ms. Creel also serves as a director of
Glendale Federal Bank, Inc. and Teledyne Inc.
 
    Richard H. Guilford, 67, was elected as a director in 1995. Mr. Guilford is
a former founder of HazWaste. Prior to the acquisition, Mr. Guilford served as
Chairman and Treasurer since HazWaste's founding in 1987. Mr. Guilford was also
President and Chief Executive Officer of HazWaste. From 1978 to 1987, Mr.
Guilford was President of Corporate & Financial Management, Ltd., a management
consulting firm operating in Virginia, Florida and Georgia. From 1956 to 1976,
Mr. Guilford was associated with Fidelity Corporation, a large publicly held
diversified financial holding company where he served in many executive
positions, the last being as president of several subsidiary companies as well
as Executive Vice President/Chief Operating Officer and Director of the parent
corporation.
 
    Richard J. Heckmann, 52, was elected as a director in 1993. Mr. Heckmann is
Chairman of the Board of Directors, President and Chief Executive Officer of
United States Filter Corporation. Mr. Heckmann was a Senior Vice President at
Prudential Bache Securities in Rancho Mirage, California from January 1982 to
August 1990. Mr. Heckmann is also a director of Smith Sport Optics, United
Waste, Inc. and Air-Cure Environmental, Inc.
 
COMMITTEES AND MEETINGS OF THE BOARD OF DIRECTORS
 
    The business and affairs of the Company are managed by and under the
direction of the Board of Directors as provided by Delaware law. During the
fiscal year ended August 25, 1995, the Board of Directors met six times and
acted on three occasions by unanimous consent in lieu of a meeting. Each
director attended more than 75 percent of the aggregate number of meetings of
the Board of Directors and the committees on which he or she served.
 
    The Company has an Audit Committee consisting of Larry J. Lawrence,
Chairman; Charles D. Applequist and Martha L. Robinson. The committee met twice
during the fiscal year ended August 25, 1995. The functions of the Audit
Committee are to recommend the engagement and discharge of independent auditors;
to direct and supervise special investigations; to review with independent
auditors the plans and results of the auditing engagement; to approve
professional services provided by the
 
                                      I-3
<PAGE>
independent auditors; to consider audit and non-audit fees; and to review the
adequacy of the Company's system of internal accounting controls.
 
    The Company has a Compensation Committee consisting of Richard J. Heckmann,
Chairman; James E. Clark and Ward W. Johnson. The Compensation Committee met
four times during the fiscal year ended August 25, 1995. The functions of the
Compensation Committee are to review annually with the Chief Executive Officer
both her performance and the performance of the Company's other principal
officers whose compensation is the subject of review and recommendations by the
Compensation Committee, and to review annually and recommend to the Board of
Directors salary ranges and incentive compensation for the principal officers of
the Company. The Compensation Committee is also responsible for the
administration of The Earth Technology Corporation (USA) 1987 Stock Plan (the
"1987 Stock Plan").
 
    The Company has appointed a Nominating Committee consisting of Diane C.
Creel, Chairwoman; Creighton K. Early and Richard J. Heckmann. The committee did
not meet in the fiscal year ended August 25, 1995. The Nominating Committee
reviews qualifications and makes recommendations of candidates to fill director
vacancies and considers and makes recommendations with respect to other director
matters. The Committee's policy on recommendations by stockholders of nominees
for election to the Board of Directors is to review such nominations on a
case-by-case basis.
 
    The Company has appointed a Finance Committee consisting of Diane C. Creel,
Chairwoman; Creighton K. Early; Richard J. Heckmann and Larry J. Lawrence. The
committee did not meet in the fiscal year ended August 25, 1995. On September
28, 1995, the Board of Directors reconstituted the membership of the Finance
Committee as follows: Diane C. Creel, Chairwoman; Creighton K. Early; Larry J.
Lawrence; Martha L. Robinson and Ward W. Johnson. As reconstituted, the Finance
Committee has met three times following the close of the fiscal year ended
August 25, 1995.
 
EXECUTIVE OFFICERS AND SIGNIFICANT EMPLOYEES OF THE COMPANY
 
    The names of the current executive officers and key employees, their ages as
of December 1, 1995, all positions and offices held with the Company, and their
business experience during the last five years are set forth below. There are no
family relationships among any of the directors or executive officers. Except as
indicated below, officers are appointed to serve until the first meeting of the
Board of Directors following the next annual meeting of shareholders and until
their successors have been elected and qualified.
 
<TABLE><CAPTION>
                                                    POSITION AND BUSINESS EXPERIENCE
NAME                                 AGE                 DURING PAST FIVE YEARS
- ----------------------------------   ---   ---------------------------------------------------
<S>                                  <C>   <C>
Diane C. Creel....................   47    Chief Executive Officer, President and Chairwoman.
Creighton K. Early................   42    Chief Financial Officer, Executive Vice-President
                                           and Director.
Theodore A. Barten................   44    Executive Vice-President Commercial, Earth Tech
                                           Consulting Engineering. Mr. Barten was appointed
                                           President of WW Engineering & Science Inc., a
                                           wholly owned subsidiary of the Company, in March
                                           1994.
Robert A. Colonna.................   58    Executive Vice President Government, Earth Tech
                                           Consulting Engineering. In April 1990, Mr. Colonna
                                           was appointed Senior Vice President--Government
                                           Services Division (Eastern). In November 1993, Mr.
                                           Colonna was appointed Senior Vice President--
                                           Government Operations.
Elizabeth R. Holbrook.............   44    Chief Marketing Officer. Prior to rejoining the
                                           Company, Dr. Holbrook was the Chief Marketing
                                           Officer for Advanced Sciences, Inc. from November
                                           1990 to December 1992.
</TABLE>
 
                                      I-4
<PAGE>
<TABLE><CAPTION>
                                                    POSITION AND BUSINESS EXPERIENCE
NAME                                 AGE                 DURING PAST FIVE YEARS
- ----------------------------------   ---   ---------------------------------------------------
<S>                                  <C>   <C>
Charles S. Alpert.................   49    General Counsel and Corporate Secretary.
Carole L. Collins.................   49    Corporate Vice President. In April 1989, Ms.
                                           Collins was appointed Corporate Director of Human
                                           Resources.
Steven L. Scott...................   46    Corporate Vice President. In May 1990, Mr. Scott
                                           was appointed Senior Vice President, Government
                                           Services Division (Western). In November 1993, Mr.
                                           Scott became the Senior Vice President--Government
                                           Logistics.
William J. Cretens................   41    President Earth Tech Operation Services. Since
                                           1982, Mr. Cretens served as President of WW
                                           Operation Services, a division of WW Engineering &
                                           Sciences Inc., a wholly owned subsidiary of the
                                           Company and the predecessor to Earth Tech
                                           Operations Services.
Patricia E. Montgomery............   59    Assistant Corporate Secretary. Ms. Montgomery was
                                           appointed Corporate Secretary of the Company in
                                           October 1986.
</TABLE>
 
                             SECTION 16 COMPLIANCE
 
    Section 16 (a) of the Exchange Act requires the Company's executive officers
and directors and persons who beneficially own more than ten percent of a
registered class of the Company's equity securities to file reports of ownership
and changes in ownership with the Commission. Executive officers, directors and
greater than ten-percent shareholders are required by regulation to furnish the
Company with copies of all Section 16(a) forms they file.
 
    Based solely on its review of the copies of such forms received by it, or
written representations from certain reporting persons that no Forms 5 were
required for those persons, the Company believes that during the Company's
fiscal year ended August 25, 1995, all Section 16(a) filing requirements
applicable to its executive officers, directors, and greater than ten-percent
beneficial owners were complied with.
 
                                      I-5
<PAGE>
                             EXECUTIVE COMPENSATION
 
SUMMARY COMPENSATION TABLE
 
    The following table provides information for the fiscal years ended August
25, 1995, August 26, 1994 and August 27, 1993, regarding the compensation paid
by the Company and its subsidiaries to the Chief Executive Officer and the four
other most highly compensated officers and other significant employees serving
as of August 25, 1995 ("Named Executive Officers").
 
<TABLE><CAPTION>
                                                          LONG-TERM COMPENSATION
                                                         -------------------------
                                                                  AWARDS
                                          ANNUAL         -------------------------
                                       COMPENSATION                    SECURITIES
                                     -----------------   RESTRICTED    UNDERLYING       ALL OTHER
NAME & PRINCIPAL                     SALARY     BONUS      STOCK      OPTIONS/SARS   COMPENSATION(1)
POSITION                      YEAR     ($)       ($)       AWARDS         (#)              ($)
- ----------------------------  ----   -------   -------   ----------   ------------   ---------------
<S>                           <C>    <C>       <C>       <C>          <C>            <C>
Diane C. Creel..............  1995   204,750    25,200      --           --              $ 4,845
  President and Chief         1994   199,735    69,225      --           38,000            7,357
  Executive Officer           1993   161,360   128,400(2)    --          --                6,671
Robert A. Colonna...........  1995   154,768    63,200      --           10,000          $ 4,676
  Executive Vice President    1994   154,079    48,720      --            3,000            5,345
  Government                  1993   139,874    53,800      --           --                5,388
Elizabeth R. Holbrook.......  1995   161,753    36,000      --           10,000          $ 3,871
  Chief Marketing Officer     1994   156,253    76,000    $ 90,000(5)    --                4,050
                              1993    87,450(3) 121,000(4)  42,500(5)    --                2,405
Theodore A. Barten..........  1995   169,000    15,500      --           --              --
  Executive Vice President    1994   162,707    25,000      --           --              --
  Commercial                  1993     --        --         --           --              --
Creighton K. Early..........  1995   149,767    15,300      --           --              $ 4,672
  Chief Financial Officer     1994   147,134    45,010      --           25,000            5,023
                              1993   117,479   112,400(2)    --          --                4,832
</TABLE>
 
- ------------
 
(1) Amounts consist of Company contributions under its 401(k) Retirement Savings
    Plan.
 
(2) Bonus amounts in fiscal 1993 for Ms. Creel and Mr. Early include a one-time
    turnaround bonus award of $67,900 each.
 
(3) Represents salary since commencement of employment on December 28, 1992.
 
(4) Includes $50,000 awarded upon commencement of employment.
 
(5) Represents a grant of 10,000 Shares of restricted stock upon commencement of
    employment on December 28, 1992 and an additional grant of 10,000 Shares on
    December 28, 1993. The aggregate fair market value of such Shares as of
    August 25, 1995, was $95,000. The Shares vest fifty percent on the first
    anniversary of the date of the grant, thirty percent on the second
    anniversary of the date of the grant, and twenty percent on the third
    anniversary of the date of the grant. Assuming an Offer price of $8.00 per
    Share, the aggregate value of such Shares of restricted stock is $160,000.
    The Company does not pay dividends on restricted stock.
 
                                      I-6
<PAGE>

STOCK OPTION GRANTS
 
    The following table sets forth information regarding individual grants of
options to purchase the Shares made to the Named Executive Officers during the
fiscal year ended August 25, 1995. The Company does not have a program to grant
stock appreciation rights.
 
                       OPTIONS GRANTS IN LAST FISCAL YEAR
 
<TABLE><CAPTION>
                                                INDIVIDUAL GRANTS                                   POTENTIAL
                          -------------------------------------------------------------          REALIZABLE VALUE
                            NUMBER OF       % OF TOTAL                                       AT ASSUMED ANNUAL RATES
                            SECURITIES        OPTIONS                                      OF STOCK PRICE APPRECIATION
                            UNDERLYING      GRANTED TO      EXERCISE                            FOR OPTION TERM(2)
                             OPTIONS         EMPLOYEES       OR BASE                       ----------------------------
                             GRANTED            IN            PRICE        EXPIRATION          5%               10%
NAME                          (#)(1)        FISCAL YEAR     ($/SHARE)         DATE             ($)              ($)
- -----------------------   --------------    -----------    -----------    -------------    -----------      -----------
<S>                       <C>               <C>            <C>            <C>              <C>              <C>
Diane C. Creel.........      --               --              --              --              --               --
Robert A. Colonna......     10,000             4.5             10.75        10/11/04          67,606          171,327
Elizabeth R.
Holbrook...............     10,000             4.5             10.75        10/11/04          67,606          171,327
Theodore A. Barten.....      --               --              --              --              --               --
Creighton K. Early.....      --               --              --              --              --               --
</TABLE>
 
- ------------
 
(1) Options are granted with an exercise price equal to 100% of the market price
    of the underlying Shares on the date of grant and vest at the rate of 20%,
    30% and 50% per year beginning one year from the date of grant.
 
(2) These amounts represent certain assumed rates of stock price appreciation in
    accordance with Commission rules. The actual value, if any, that an
    executive officer may realize is dependent upon the future performance of
    the Shares and continued employment through the vesting period.
 
STOCK OPTION EXERCISES AND YEAR END VALUES
 
    The following table sets forth certain information regarding the number and
value of in-the-money unexercised options held by the Named Executive Officers
as of August 25, 1995. The values of unexercised in-the-money stock options
shown below are the aggregate differences between the market price of the Shares
on August 25, 1995, and the exercise price of the options. The actual amount, if
any, realized upon exercise of stock options will equal the excess, if any, of
the market price of the Shares over the exercise price per Share of such stock
options at the time the stock option is exercised. There is no assurance that
the values of unexercised in-the-money stock options reflected in this table
will be realized.
 
   AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR AND FISCAL YEAR-END OPTION
                                     VALUES
 
<TABLE><CAPTION>
                                                                 NUMBER OF SECURITIES        VALUE OF UNEXERCISED IN-THE-
                                SHARES                       UNDERLYING OPTIONS AT FISCAL    MONEY OPTIONS/SARS AT FISCAL
                             ACQUIRED ON         VALUE               YEAR END (#)                   YEAR END($)(1)
NAME                         EXERCISE(#)      REALIZED($)     EXERCISABLE/UNEXERCISABLE       EXERCISABLE/UNEXERCISABLE
- -------------------------   --------------    -----------    ----------------------------    ----------------------------
<S>                         <C>               <C>            <C>            <C>              <C>              <C>
Diane C. Creel...........      --               --              27,600          30,400          25,000           --
Robert A. Colonna........      --               --               8,600          12,400          10,000
Elizabeth R. Holbrook....      --               --              --              10,000          --               --
Theodore A. Barten.......      --               --              16,451          11,411          --               --
Creighton K. Early.......      --               --              30,000          20,000          25,000           --
</TABLE>
 
- ------------
 
(1) Based upon the closing price of the Shares on August 25, 1995 of $4.75.
 
                                      I-7
<PAGE>

COMPENSATION OF DIRECTORS
 
    Each director who is not an employee of the Company receives stock options
in lieu of 100% of the fees otherwise payable for service as a director. Options
are granted quarterly on the last day of the Company's fiscal quarter. The
number of options granted each quarter is equal to the quarterly director fee of
$3,750 divided by 75% of the market price of the Shares as of the last day of
each fiscal quarter. The exercise price of such options is equal to 25% of the
market price of the Shares as of the last day of the Company's fiscal quarter.
Options become exercisable on the first day of the calendar year following the
date of grant, provided that any options will become immediately exercisable
upon the termination of the service of the director holding the option. Options
terminate upon the expiration of ten years from the date of grant but are not
otherwise subject to forfeiture.
 
EMPLOYMENT AGREEMENTS AND CHANGE-IN-CONTROL ARRANGEMENTS
 
    The disclosure set forth under the captions "Employment Agreements" and
"Stock Option Plans" in Item 3 of the Schedule 14D-9 is incorporated herein by
reference.
 
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
 
    The Compensation Committee for the fiscal year ended August 25, 1995 was
comprised of Richard J. Heckmann, James E. Clark and Ward W. Johnson. There were
no Compensation Committee interlocks.
 
    With respect to certain transactions between Mr. Johnson and the Company,
see "Certain Transactions" immediately below.
 
                              CERTAIN TRANSACTIONS
 
    Mr. Ward W. Johnson loaned Environmental Technology of North America, Inc.,
a wholly-owned subsidiary of HazWaste, $140,000, which is evidenced by a
promissory note, dated September 15, 1992. The proceeds of the loan were used to
purchase certain heavy construction equipment and the loan is secured by such
equipment. The promissory note bears interest at the rate of 12% per annum and
is payable in thirty-six monthly installments.
 
         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
Ownership of Common Stock by Certain Beneficial Owners, Officers, Directors and
                                    Nominees
 
    The following table contains information as of November 25, 1995 regarding
the ownership of the Shares by (i) all persons who, to the knowledge of the
Company, were the beneficial owners of 5% or more of the outstanding Shares,
(ii) each director and director nominee of the Company, (iii) the Chief
Executive Officer and the Named Executive Officers whose salary and bonus for
the past fiscal year exceeded $100,000 and (iv) all executive officers and
directors of the Company as a group. Unless otherwise indicated, the mailing
address of each individual is The Earth Technology Corporation (USA), 100 West
Broadway, Suite 5000, Long Beach, California 90802. Except as otherwise
indicated, to the knowledge of the Company, all persons listed below have sole
voting and investment power with respect to their shares of the Company Common
Stock.
 
                                      I-8
<PAGE>
            OWNERSHIP OF COMMON STOCK BY CERTAIN BENEFICIAL OWNERS,
                        OFFICERS, DIRECTORS AND NOMINEES
 
                      BENEFICIAL OWNERSHIP OF COMMON STOCK
                            AS OF NOVEMBER 25, 1995
 
<TABLE><CAPTION>
                                                                              NUMBER OF
NAME                                                                       SHARES (1)(2)(3)    PERCENT
- ------------------------------------------------------------------------   ----------------    -------
<S>                                                                        <C>                 <C>
Martha L. Robinson(4)...................................................         735,245          8.5
Larry J. Lawrence(5)....................................................         460,114          5.3
Ward W. Johnson(7)......................................................         223,490          2.6
Diane C. Creel..........................................................         106,565          1.2
Richard H. Guilford.....................................................          82,399           .9
Richard J. Heckmann.....................................................          81,069           .9
Robert A. Colonna.......................................................          63,385           .7
Charles D. Applequist...................................................          57,873           .7
Creighton K. Early......................................................          45,271           .5
James C. Clark..........................................................          41,344           .5
Elizabeth R. Holbrook...................................................          31,538           .3
Theodore A. Barten......................................................          21,781           .3
All executive officers and directors as a group.........................       2,084,406         24.0
Other 5% or more shareholders(6)........................................         571,583          6.6
</TABLE>
 
- ------------
 
(1) Includes 116,989 Shares held by the trustee of the Company's Retirement
    Savings Plan for accounts of participants, including 3,372 Shares held for
    the benefit of Ms. Creel; 2,328 Shares held for the benefit of Mr. Early;
    1,865 Shares held for the benefit of Mr. Colonna; and 138 Shares held for
    the benefit of Dr. Holbrook.
 
(2) Includes 14,460 Shares which may be purchased by Mr. Applequist, 11,344
    Shares by Mr. Clark, 3,108 shares by Mr. Guilford, 11,066 Shares by Mr.
    Heckmann, 3,108 Shares by Mr. Johnson, 5,441 shares by Mr. Lawrence and
    5,441 Shares by Ms. Robinson, within 60 days of November 25, 1995 upon
    exercise of outstanding stock options pursuant to the Director Option Plan.
 
(3) Includes 30,000 Shares which may be purchased by Ms. Creel, 31,500 Shares
    which may be purchased by Mr. Early, 2,000 Shares which may be purchased by
    Dr. Holbrook, 11,500 Shares which may be purchased by Mr. Colonna, and
    16,474 Shares which may be purchased by Mr. Barten within 60 days after
    November 25, 1995 upon exercise of outstanding stock options pursuant to the
    1987 Stock Plan.
 
(4) These Shares are held of record by Prudential Venture Partners II. Ms.
    Robinson is a Vice President of Prudential Equity Investors, Inc., the
    general partner of Prudential Venture Partners II. Ms. Robinson disclaims
    beneficial ownership of these shares.
 
(5) These shares are held of record by Lawrence, Tyrrell, Ortale & Smith, a
    venture capital firm. Lawrence Venture Partners, of which Mr. Lawrence is
    the managing general partner, is the general partner of Lawrence, Tyrrell,
    Ortale & Smith. Mr. Lawrence disclaims any beneficial ownership of these
    shares.
 
(6) These Shares are held by Atlantic Venture Partners, 300 Knollwood Street,
    Suite 600, Winston Salem, North Carolina, 27103.
 
(7) Includes 32,000 Shares gifted to family members as to which Mr. Johnson
    disclaims beneficial ownership.
 
                                      I-9


<PAGE>

                                       EXHIBIT INDEX
                                       -------------

<TABLE>
<CAPTION>
 EXHIBIT
   NO.
- ----------
<S>         <C>
Exhibit 1   Agreement and Plan of Merger, dated as of December 8, 1995, among Tyco
            International Ltd., T1 Acquisition Corp. and The Earth Technology Corporation
            (USA).
Exhibit 2   Press Release issued jointly by Tyco International Ltd. and The Earth Technology
            Corporation (USA), dated December 11, 1995.
Exhibit 3   Letter to Stockholders of The Earth Technology Corporation (USA), dated December
            13, 1995.1
Exhibit 4   Opinion of Alex. Brown & Sons Incorporated, dated December 8, 1995.1
Exhibit 5   Pages 121 through 122 of the 1995 Proxy Statement relating to executive
            employment agreements.
Exhibit 6   Pages 126 through 131 of the 1995 Proxy Statement relating to The Earth
            Technology Corporation (USA) 1987 Stock Plan.
Exhibit 7   Pages 132 through 134 of the 1995 Proxy Statement relating to The Earth
            Technology Corporation (USA) 1991 Director Option Plan.
Exhibit 8   Pages 113 through 114 of the 1995 Proxy Statement relating to certain
            transactions with certain directors and officers of The Earth Technology
            Corporation (USA).
Exhibit 9   Confidentiality Agreement, dated as of August 29, 1995, by and between The Earth
            Technology Corporation (USA) and Tyco International Ltd.
</TABLE>
 
- ------------
 
1 Included in copies mailed to stockholders.



                                                         Exhibit 1

                                  __________________


                             AGREEMENT AND PLAN OF MERGER

                                        AMONG

                               TYCO INTERNATIONAL LTD.,

                                 T1 ACQUISITION CORP.

                                         AND

                       THE EARTH TECHNOLOGY CORPORATION (USA),









                             DATED AS OF December 8, 1995


                                  __________________



<PAGE>



                                  TABLE OF CONTENTS


                                                                            PAGE
ARTICLE I  THE OFFER
     Section 1.1  The Offer . . . . . . . . . . . . . . . . . . . . . . . .    1
     Section 1.2  Company Actions . . . . . . . . . . . . . . . . . . . . .    3

ARTICLE II  THE MERGER
     Section 2.1  The Merger  . . . . . . . . . . . . . . . . . . . . . . .    4
     Section 2.2  Effective Time  . . . . . . . . . . . . . . . . . . . . .    4
     Section 2.3  Effects of the Merger . . . . . . . . . . . . . . . . . .    4
     Section 2.4  Certificate of Incorporation and Bylaws; Directors and
                  Officers  . . . . . . . . . . . . . . . . . . . . . . . .    4
     Section 2.5  Conversion of Securities  . . . . . . . . . . . . . . . .    5
     Section 2.6  Payment of Certificates . . . . . . . . . . . . . . . . .    6
     Section 2.7  Dissenting Shares . . . . . . . . . . . . . . . . . . . .    7
     Section 2.8  Merger Without Meeting of Stockholders  . . . . . . . . .    7
     Section 2.9  No Further Ownership Rights in Common Stock . . . . . . .    8
     Section 2.10 Closing of Company Transfer Books  . . . . . . . . . . .     8

ARTICLE III  REPRESENTATIONS AND WARRANTIES OF PARENT AND SUB
     Section 3.1  Organization and Qualification  . . . . . . . . . . . . .    8
     Section 3.2  Authority Relative to this Agreement  . . . . . . . . . .    8
     Section 3.3  No Conflict; Required Filings and Consents  . . . . . . .    8
     Section 3.4  Brokers . . . . . . . . . . . . . . . . . . . . . . . . .    9
     Section 3.5  Ownership of Sub; No Prior Activities . . . . . . . . . .    9
     Section 3.6  Financing . . . . . . . . . . . . . . . . . . . . . . . .   10
     Section 3.7  Full Disclosure . . . . . . . . . . . . . . . . . . . . .   10

ARTICLE IV  REPRESENTATIONS AND WARRANTIES OF THE COMPANY
     Section 4.1  Organization and Qualification; Subsidiaries  . . . . . .   10
     Section 4.2  Certificate of Incorporation and Bylaws . . . . . . . . .   11
     Section 4.3  Capitalization  . . . . . . . . . . . . . . . . . . . . .   11
     Section 4.4  Authority Relative to this Agreement  . . . . . . . . . .   12
     Section 4.5  Contracts; No Conflict; Required Filings and Consents . .   12
     Section 4.6  Compliance; Permits . . . . . . . . . . . . . . . . . . .   13
     Section 4.7  SEC Filings; Financial Statements . . . . . . . . . . . .   13
     Section 4.8  Absence of Certain Changes or Events  . . . . . . . . . .   14
     Section 4.9  No Undisclosed Liabilities  . . . . . . . . . . . . . . .   14
     Section 4.10 Absence of Litigation  . . . . . . . . . . . . . . . . .    15
     Section 4.11 Employee Benefit Plans; Employment Agreements  . . . . .    15
     Section 4.12 Labor Matters  . . . . . . . . . . . . . . . . . . . . .    17
     Section 4.13 Limitation on Business Conduct . . . . . . . . . . . . .    17
     Section 4.14 Title to Property  . . . . . . . . . . . . . . . . . . .    17
     Section 4.15 Real Property; Leased Premises.  . . . . . . . . . . . .    18
     Section 4.16 Taxes. . . . . . . . . . . . . . . . . . . . . . . . . .    18



                                        - i -


<PAGE>



     Section 4.17  Environmental Matters  . . . . . . . . . . . . . . . . .   19
     Section 4.18  Intellectual Property  . . . . . . . . . . . . . . . . .   20
     Section 4.19  Insurance  . . . . . . . . . . . . . . . . . . . . . . .   21
     Section 4.20  Accounts Receivable. . . . . . . . . . . . . . . . . . .   21
     Section 4.21  Customers. . . . . . . . . . . . . . . . . . . . . . . .   22
     Section 4.22  Interested Party Transactions  . . . . . . . . . . . . .   22
     Section 4.23  Absence of Certain Payments. . . . . . . . . . . . . . .   22
     Section 4.24  Takeover Statute.  . . . . . . . . . . . . . . . . . . .   22
     Section 4.25  Opinion of Financial Advisor . . . . . . . . . . . . . .   22
     Section 4.26  Brokers  . . . . . . . . . . . . . . . . . . . . . . . .   22
     Section 4.27  Full Disclosure  . . . . . . . . . . . . . . . . . . . .   23

ARTICLE V  COVENANTS RELATING TO CONDUCT OF BUSINESS
     Section 5.1  Conduct of Business by the Company Pending the Merger . .   23
     Section 5.2  Acquisition Proposals . . . . . . . . . . . . . . . . . .   25
     Section 5.3  Annual Meeting of Stockholders  . . . . . . . . . . . . .   26
     Section 5.4  Conduct of Business of Sub Pending the Merger . . . . . .   26

ARTICLE VI  ADDITIONAL AGREEMENTS
     Section 6.1  Company Stockholder Approval; Proxy Statement . . . . . .   26
     Section 6.2  Access to Information; Confidentiality  . . . . . . . . .   28
     Section 6.3  Fees and Expenses . . . . . . . . . . . . . . . . . . . .   28
     Section 6.4  Stock Plans and Warrants  . . . . . . . . . . . . . . . .   29
     Section 6.5  Reasonable Best Efforts . . . . . . . . . . . . . . . . .   29
     Section 6.6  Public Announcements  . . . . . . . . . . . . . . . . . .   30
     Section 6.7  Indemnification; Directors and Officers Insurance . . . .   30
     Section 6.8  Board Representation  . . . . . . . . . . . . . . . . . .   30
     Section 6.9  Notification of Certain Matters . . . . . . . . . . . . .   31
     Section 6.10 Employment and Benefit Arrangements . . . . . . . . . . .   31

ARTICLE VII  CONDITIONS PRECEDENT
     Section 7.1  Conditions to Each Party's Obligation to Effect the
                  Merger  . . . . . . . . . . . . . . . . . . . . . . . . .   32

ARTICLE VIII  TERMINATION, AMENDMENT AND WAIVER
     Section 8.1  Termination . . . . . . . . . . . . . . . . . . . . . . .   32
     Section 8.2  Effect of Termination . . . . . . . . . . . . . . . . . .   34
     Section 8.3  Amendment . . . . . . . . . . . . . . . . . . . . . . . .   34
     Section 8.4  Waiver  . . . . . . . . . . . . . . . . . . . . . . . . .   34

ARTICLE IX  GENERAL PROVISIONS
     Section 9.1  Non-Survival of Representations and Warranties  . . . . .   34
     Section 9.2  Notices.  . . . . . . . . . . . . . . . . . . . . . . . .   35
     Section 9.3  Interpretation  . . . . . . . . . . . . . . . . . . . . .   36
     Section 9.4  Counterparts  . . . . . . . . . . . . . . . . . . . . . .   36



                                        - ii -



<PAGE>



     Section 9.5  Entire Agreement; No Third-Party Beneficiaries  . . . . .   36
     Section 9.6  Governing Law . . . . . . . . . . . . . . . . . . . . . .   36
     Section 9.7  Assignment. . . . . . . . . . . . . . . . . . . . . . . .   36
     Section 9.8  Severability  . . . . . . . . . . . . . . . . . . . . . .   36
     Section 9.9  Enforcement of this Agreement; Attorneys Fees . . . . . .   36

EXHIBIT A  Conditions of the Offer



                                       - iii -



<PAGE>



                          AGREEMENT AND PLAN OF MERGER

     AGREEMENT AND PLAN OF MERGER, dated as of December 8, 1995 (this
"Agreement"), among Tyco International Ltd., a Massachusetts corporation
("Parent"), T1 Acquisition Corp., a Delaware corporation ("Sub") and a wholly
owned subsidiary of Parent, and The Earth Technology Corporation (USA), a
Delaware corporation (the "Company").

                              W I T N E S S E T H:

     WHEREAS, the respective Boards of Directors of Parent, Sub and the Company
each have approved the acquisition of the Company by Parent pursuant to a tender
offer (the "Offer") by Sub for all of the outstanding shares of Common Stock,
par value $.10 per share ("Common Stock"), of the Company at a price of $8.00
per share, net to the seller in cash, without interest, followed by a merger
(the "Merger") of Sub with and into the Company, all upon the terms and subject
to the conditions set forth herein;

     WHEREAS, the Board of Directors of the Company has adopted resolutions
approving the Offer and the Merger and recommending that the Company's
stockholders accept the Offer; and

     WHEREAS, pursuant to the Merger, each issued and outstanding share of
Common Stock not owned directly or indirectly by Parent or the Company, except
shares of Common Stock held by holders who comply with the provisions of
Delaware law regarding the right of stockholders to dissent from the Merger and
require appraisal of their shares of Common Stock, will be converted into the
right to receive the per share consideration paid pursuant to the Offer.

     NOW, THEREFORE, in consideration of the premises and the representations,
warranties, covenants and agreements herein contained, Parent, Sub and the
Company hereby agree as follows:


                                    ARTICLE I

                                    THE OFFER

     Section 1.1  The Offer.  (a)  Subject to the provisions of this Agreement,
                  ---------
within five business days after the first public announcement of this Agreement,
Sub shall, and Parent shall cause Sub to, commence, within the meaning of Rule
14d-2 under the Securities Exchange Act of 1934, as amended (including the rules
and regulations promulgated thereunder, the "Exchange Act"), the Offer.  The
obligation of Sub to, and of Parent to cause Sub to, commence the Offer and
accept for payment, and pay for, any shares of Common Stock tendered pursuant to
the Offer shall be subject to the conditions set forth in Exhibit A (the "Offer
Conditions").  The Offer shall initially expire twenty (20) business days after
the date of its commencement, unless this Agreement is terminated in accordance
with Article VIII, in which case the Offer (whether or not previously extended
in accordance



<PAGE>



with the terms hereof) shall expire on such date of termination.  Without the
prior written consent of the Company, Sub shall not (i) impose conditions to the
Offer in addition to the Offer Conditions, (ii) modify or amend the Offer
Conditions or any other term of the Offer in a manner adverse to the holders of
shares of Common Stock, (iii) waive or amend the Minimum Condition (as defined
in Exhibit A), (iv) reduce the number of shares of Common Stock subject to the
Offer, (v) reduce the price per share of Common Stock to be paid pursuant to the
Offer, (vi) except as provided in the following sentence, extend the Offer, if
all of the Offer Conditions are satisfied or waived, or (vii) change the form of
consideration payable in the Offer.  Notwithstanding the foregoing, Sub may,
without the consent of the Company, extend the Offer at any time, and from time
to time, (i) if at the then scheduled expiration date of the Offer any of the
conditions to Sub's obligation to accept for payment and pay for shares of
Common Stock shall not have been satisfied or waived, until such time as such
conditions are satisfied or waived; (ii) for any period required by any rule,
regulation, interpretation or position of the Securities and Exchange Commission
(the "SEC") or its staff applicable to the Offer; or (iii) if all Offer
Conditions are satisfied or waived but the number of shares of Common Stock
tendered is less than 90% of the then outstanding number of shares of Common
Stock, for an aggregate period of not more than 10 business days (for all such
extensions) beyond the latest expiration date that would be permitted under
clause (i) or (ii) of this sentence.  So long as this Agreement is in effect and
the Offer Conditions have not been satisfied or waived, Sub shall, and Parent
shall cause Sub to, cause the Offer not to expire. Subject to the terms and
conditions of the Offer (but subject to the right of termination in accordance
with Article VIII), Sub shall, and Parent shall cause Sub to, pay for all shares
of Common Stock validly tendered and not withdrawn pursuant to the Offer as soon
as practicable after the expiration of the Offer.

          (b)  On the date of commencement of the Offer, Parent and Sub shall
file with the SEC a Tender Offer Statement on Schedule 14D-1 with respect to the
Offer, which shall contain an offer to purchase and a related letter of
transmittal (such Schedule 14D-1 and the documents therein pursuant to which the
Offer will be made, together with any supplements or amendments thereto, the
"Offer Documents").  The Company and its counsel shall be given an opportunity
to review and comment upon the Offer Documents prior to the filing thereof with
the SEC. The Offer Documents shall comply as to form in all material respects
with the requirements of the Exchange Act, and, on the date filed with the SEC
and on the date first published, sent or given to the Company's stockholders,
the Offer Documents shall not contain any untrue statement of a material fact or
omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they were made, not misleading, except that no representation is made by Parent
or Sub with respect to information supplied by the Company in writing for
inclusion in the Offer Documents.  Each of Parent, Sub and the Company agrees
promptly to correct any information provided by it for use in the Offer
Documents if and to the extent that such information shall have become false or
misleading in any material respect, and each of Parent and Sub further agrees to
take all steps necessary to cause the Offer Documents as so corrected to be
filed with the SEC and to be disseminated to holders of shares of Common Stock,
in each case as and to the extent required by applicable federal securities
laws. Parent and Sub agree to provide the Company and its counsel in writing
with any comments Parent, Sub or their counsel may receive from



                                        - 2 -



<PAGE>



the SEC or its staff with respect to the Offer Documents promptly upon receipt
of such comments.

     Section 1.2  Company Actions.  (a)  The Company hereby approves of and
                  ---------------
consents to the Offer and represents that the Board of Directors of the Company
at a meeting duly called and held has duly adopted resolutions (i) approving
this Agreement, the Offer and the Merger, (ii) determining that the terms of the
Offer and Merger are fair to, and in the best interests of, the Company and its
stockholders, and (iii) recommending that the Company's stockholders accept the
Offer and tender their shares of Common Stock and approve the Merger and this
Agreement. The Company hereby consents to the inclusion in the Offer Documents
of such recommendation of the Board of Directors of the Company. The Company
represents that its Board of Directors has received the written opinion (the
"Fairness Opinion") of Alex. Brown & Sons Incorporated (the "Financial Advisor")
that the proposed consideration to be received by the holders of shares of
Common Stock pursuant to the Offer and the Merger is fair to such holders from a
financial point of view. The Company has been authorized by the Financial
Advisor to permit, subject to the prior review and consent by the Financial
Advisor (such consent not to be unreasonably withheld), the inclusion of the
Fairness Opinion (or a reference thereto) in the Offer Documents, the Schedule
14D-9 (as hereinafter defined) and the Proxy Statement (as hereinafter defined).

          (b)  On the date the Offer Documents are filed with the SEC, the
Company shall file with the SEC a Solicitation/Recommendation Statement on
Schedule 14D-9 with respect to the Offer (such Schedule 14D-9, as amended from
time to time, including the exhibits thereto, the "Schedule 14D-9") containing
the recommendations described in paragraph (a) of Section 1.2 above and shall
mail the Schedule 14D-9 to the stockholders of the Company as required by Rule
14D-9 promulgated under the Exchange Act.  Parent and its counsel shall be given
an opportunity to review and comment upon the Schedule 14D-9 prior to the filing
thereof with the SEC. The Schedule 14D-9 shall comply as to form in all material
respects with the requirements of the Exchange Act and, on the date filed with
the SEC and on the date first published, sent or given to the Company's
stockholders, shall not contain any untrue statement of a material fact or omit
to state any material fact required to be stated therein or necessary in order
to make the statements therein, in light of the circumstances under which they
were made, not misleading, except that no representation is made by the Company
with respect to information supplied by Parent or Sub in writing for inclusion
in the Schedule 14D-9. Each of the Company, Parent and Sub agrees promptly to
correct any information provided by it for use in the Schedule 14D-9 if and to
the extent that such information shall have become false or misleading in any
material respect, and the Company further agrees to take all steps necessary to
cause the Schedule 14D-9 as so corrected to be filed with the SEC and
disseminated to the holders of shares of Common Stock, in each case as and to
the extent required by applicable federal securities laws. The Company agrees to
provide Parent and Sub and their counsel in writing with any comments the
Company or its counsel may receive from the SEC or its staff with respect to the
Schedule 14D-9 promptly after the receipt of such comments.

          (c)  In connection with the Offer, the Company shall cause its
transfer agent to promptly furnish Sub with a list, as of a recent date, of the
holders of Common Stock and 



                                        - 3 -


<PAGE>



mailing labels containing the names and addresses of the record holders of
Common Stock and of those persons becoming record holders subsequent to such
date, together with copies of all lists of stockholders, security position
listings (including shares of Common Stock held by depositories) and computer
files and all other information in the Company's possession or control regarding
the beneficial owners of Common Stock, and shall furnish to Sub such information
and assistance (including updated lists of stockholders, security position
listings and computer files) as Sub may reasonably request in communicating the
Offer to the Company's stockholders.

                                   ARTICLE II

                                   THE MERGER

     Section 2.1  The Merger.  Upon the terms and subject to the conditions
                  ----------
hereof, and in accordance with the General Corporation Law of the State of
Delaware, as amended (the "DGCL"), Sub shall be merged with and into the Company
at the Effective Time (as hereinafter defined). Following the Merger, the
separate corporate existence of Sub shall cease and the Company shall continue
as the surviving corporation (the "Surviving Corporation") and shall succeed to
and assume all the rights and obligations of Sub in accordance with the DGCL.

     Section 2.2  Effective Time.  The Merger shall become effective when the
                  --------------
Certificate of Merger or, if applicable, the Certificate of Ownership and Merger
(each, the "Certificate of Merger"), executed in accordance with the relevant
provisions of the DGCL, are accepted for record by the Secretary of State of the
State of Delaware. When used in this Agreement, the term "Effective Time" shall
mean the later of the date and time at which the Certificate of Merger is
accepted for record or such later time established by the Certificate of Merger.
The filing of the Certificate of Merger shall be made as soon as reasonably
practicable (but not later than the third business day) after the satisfaction
or waiver of the conditions to the Merger set forth herein.

     Section 2.3  Effects of the Merger.  The Merger shall have the effects set
                  ---------------------
forth in the DGCL.

     Section 2.4  Certificate of Incorporation and Bylaws; Directors and
                  ------------------------------------------------------
Officers.
- --------
 (a) The Certificate of Incorporation of the Company, as in effect immediately
prior to the Effective Time, shall be the Certificate of Incorporation of the
Surviving Corporation until thereafter changed or amended as provided therein or
by applicable law, except that ARTICLE Sixth of such Certificate of
Incorporation shall be amended and restated to provide that the number of
directors of the Surviving Corporation shall be not less than three (3) or more
than nine (9), and all such directors shall constitute a single class.  The
Bylaws of Sub, as in effect immediately prior to the Effective Time, shall be
the Bylaws of the Surviving Corporation until thereafter changed or amended as
provided therein or by applicable law.

          (b)  The directors of Sub at the Effective Time shall, from and after
the Effective Time, be the directors of the Surviving Corporation until their
successors have been 



                                        - 4 -



<PAGE>



duly elected or appointed and qualified or until their earlier death,
resignation or removal, in accordance with the Surviving Corporation's
Certificate of Incorporation and Bylaws.

          (c)  The officers of the Company at the Effective Time and such other
persons as designated by Parent shall, from and after the Effective Time, be the
officers of the Surviving Corporation until their successors have been duly
elected or appointed and qualified or until their earlier death, resignation or
removal, in accordance with the Surviving Corporation's Certificate of
Incorporation and Bylaws.

     Section 2.5  Conversion of Securities.  As of the Effective Time, by virtue
                  ------------------------
of the Merger and without any action on the part of any stockholder of the
Company:

          (a)  All shares of Common Stock that are held in the treasury of the
     Company or by any wholly owned subsidiary of the Company and any shares of
     Common Stock owned by Parent, Sub or any other wholly owned subsidiary of
     Parent shall be canceled and no consideration shall be delivered in
     exchange therefor.

          (b)  Each share of Common Stock issued and outstanding immediately
     prior to the Effective Time, including any "restricted" stock issued
     pursuant to the 1987 Stock Option and Restricted Stock Plan (as defined
     below), all of the vesting requirements of which are hereby waived without
     the need for any action on the part of any person (other than shares to be
     canceled in accordance with Section 2.5(a) and other than Dissenting Shares
     (as defined in Section 2.7)) shall be converted into the right to receive
     from Parent in cash, without interest, the per share consideration in the
     Offer (the "Merger Consideration").  All such shares of Common Stock, when
     so converted, shall no longer be outstanding and shall automatically be
     canceled and retired and each holder of a certificate or certificates (the
     "Certificates") representing any such shares shall cease to have any rights
     with respect thereto, except the right to receive the Merger Consideration
     for such shares upon surrender of such Certificates.

          (c)  Each issued and outstanding share of the capital stock of Sub
     shall be converted into and become one fully paid and nonassessable share
     of Common Stock of the Surviving Corporation.

          (d)  Each option outstanding at the Effective Time to purchase shares
     of  Common Stock (a "Stock Option") granted under (i) The Earth Technology
     Corporation (USA) 1987 Stock Plan (the "1987 Stock Plan"), (ii) The Earth
     Technology Corporation (USA) Director Option Plan (the "Director Option
     Plan") and (iii) any other stock plan or agreement of the Company, whether
     vested or unvested, shall be converted into an option (a "Parent Option")
     to purchase that number of shares of Parent common stock, par value $.50
     per share ("Parent Common Stock"), equal to the product of (A) the quotient
     of (i) the fair market value of a share of Common Stock as of the Effective
     Time divided by (ii) the fair market value of a share of Parent Common
     Stock as of the Effective Time (the "Stock Ratio") and (B) the number of
     shares of Common Stock subject to such Stock Option (rounded to the nearest
     whole share) at an exercise price equal to the per share



                                        - 5 -



<PAGE>



     exercise price of such Stock Option divided by the Stock Ratio (rounded
     to the nearest cent), which Parent Option shall be subject to the same 
     terms and conditions (including vesting schedule) as the Stock Option.  
     As soon as practicable after the Effective Time, Parent shall deliver to 
     each holder of a Stock Option outstanding immediately prior to the 
     Effective Time an appropriate notice setting forth such holder's rights 
     pursuant hereto.

          (e)  Each stock purchase warrant outstanding at the Effective Time to
     purchase shares of Common Stock, issued by Summit Environmental Group, Inc.
     as of August 29, 1990 and assumed by the Company (a "Warrant"), shall
     represent the right to receive, upon payment of the exercise price therefor
     in accordance with its terms, cash in an amount equal to the product of (x)
     the number of shares issuable upon exercise of such Warrant immediately
     prior to the Effective Time and (y) the Merger Consideration.

     Section 2.6  Payment of Certificates.  (a)  Paying Agent.  Prior to the
                  -----------------------        ------------
Effective Time, Parent shall appoint First Interstate Bank of California or such
other commercial bank or trust company designated by Parent and reasonably
acceptable to the Company to act as paying agent hereunder (the "Paying Agent")
for the payment of the Merger Consideration upon surrender of Certificates. All
of the fees and expenses of the Paying Agent shall be borne by Parent.

          (b)  Surviving Corporation to Provide Funds.  Parent shall take all
               --------------------------------------
steps necessary to enable and cause the Surviving Corporation to provide the
Paying Agent with cash in amounts necessary to pay for all of the shares of
Common Stock pursuant to Section 2.5 (determined as though there are no
Dissenting Shares (as hereinafter defined)), when and as such amounts are needed
by the Paying Agent.

          (c)  Payment Procedures.  As soon as practicable after the Effective
               ------------------
Time, the Paying Agent shall mail to each holder of record of a Certificate,
other than Parent, the Company and any wholly owned subsidiary of Parent or the
Company, (i) a letter of transmittal (which shall specify that delivery shall be
effected, and risk of loss and title to the Certificates shall pass, only upon
actual delivery of the Certificates to the Paying Agent and shall be in a form
and have such other provisions as Parent may reasonably specify) and
(ii) instructions for the use thereof in effecting the surrender of the
Certificates in exchange for the Merger Consideration. Upon surrender of a
Certificate for cancellation to the Paying Agent or to such other agent or
agents as may be appointed by the Surviving Corporation, together with such
letter of transmittal, duly executed and completed in accordance with the
instructions thereto, and such other documents as may reasonably be required by
the Paying Agent, the holder of such Certificate shall be entitled to receive in
exchange therefor the amount of cash into which the shares of Common Stock
theretofore represented by such Certificate shall have been converted pursuant
to Section 2.5, and the Certificates so surrendered shall forthwith be canceled.
 No interest will be paid or will accrue on the cash payable upon the surrender
of any Certificate. If payment is to be made to a person other than the person
in whose name the Certificate so surrendered is registered, it shall be a
condition of payment that such Certificate shall be properly endorsed or
otherwise in proper



                                        - 6 -



<PAGE>



form for transfer and that the person requesting such payment shall pay any
transfer or other taxes required by reason of the transfer of such Certificate
or establish to the satisfaction of the Surviving Corporation that such tax has
been paid or is not applicable.  Until surrendered as contemplated by this
Section 2.6, each Certificate (other than Certificates representing Dissenting
Shares and Certificates representing any shares of Common Stock owned by Parent
or any wholly owned subsidiary of Parent or held in the treasury of the Company
or by any wholly owned subsidiary of the Company) shall be deemed at any time
after the Effective Time to represent only the right to receive upon such
surrender the amount of cash, without interest, into which the shares of Common
Stock theretofore represented by such Certificate shall have been converted
pursuant to Section 2.5. Notwithstanding the foregoing, none of the Paying
Agent, the Surviving Corporation or any party hereto shall be liable to a former
stockholder of the Company for any cash or interest delivered to a public
official pursuant to applicable abandoned property, escheat or similar laws.  In
the event any Certificate shall have been lost, stolen or destroyed, Parent may,
in its discretion and as a condition precedent to the payment of the Merger
Consideration in respect of the shares represented by such Certificate, require
the owner of such lost, stolen or destroyed Certificate to deliver a bond in
such sum as it may reasonably direct as indemnity against any claim that may be
made against Parent or the Paying Agent.

     Section 2.7  Dissenting Shares.  Notwithstanding any provision of this
                  -----------------
Agreement to the contrary, if required by the DGCL (but only to the extent
required thereby), shares of Common Stock which are issued and outstanding
immediately prior to the Effective Time and which are held by holders of such
shares of Common Stock who have properly exercised appraisal rights with respect
thereto in accordance with Section 262 of the DGCL (the "Dissenting Shares")
will not be exchangeable for the right to receive the Merger Consideration, and
holders of such shares of Common Stock will be entitled to receive payment of
the appraised value of such shares of Common Stock in accordance with the
provisions of such Section 262 unless and until such holders fail to perfect or
effectively withdraw or lose their rights to appraisal and payment under the
DGCL.  If, after the Effective Time, any such holder fails to perfect or
effectively withdraws or loses such right, such shares of Common Stock will
thereupon be treated as if they had been converted into and have become
exchangeable for, at the Effective Time, the right to receive the Merger
Consideration, without any interest thereon.  The Company will give Parent
prompt notice of any demands received by the Company for appraisals of shares of
Common Stock, and Parent shall have the right to participate in all negotiations
and proceedings with respect to any such demands.  Neither the Company nor the
Surviving Corporation shall, except with the prior written consent of Parent,
make any payment with respect to any demands for appraisal or offer to settle or
settle any such demands.

     Section 2.8  Merger Without Meeting of Stockholders.  Notwithstanding the
                  --------------------------------------
foregoing in this Article II, in the event that Sub, or any other direct or
indirect subsidiary of Parent, shall acquire at least 90 percent of the
outstanding shares of Common Stock, the parties hereto agree to take all
necessary and appropriate action to cause the Merger to become effective as soon
as practicable after the expiration of the Offer without a meeting of
stockholders of the Company, in accordance with Section 253 of the DGCL.



                                        - 7 -




<PAGE>

     Section 2.9  No Further Ownership Rights in Common Stock.  From and after
                  -------------------------------------------
the Effective Time, the holders of shares of Common Stock which were outstanding
immediately prior to the Effective Time shall cease to have any rights with
respect to such shares of Common Stock except as otherwise provided in this
Agreement or by applicable law. All cash paid upon the surrender of Certificates
in accordance with the terms hereof shall be deemed to have been issued in full
satisfaction of all rights pertaining to the shares of Common Stock.

     Section 2.10  Closing of Company Transfer Books.  At the Effective Time,
                   ---------------------------------
the stock transfer books of the Company shall be closed and no transfer of
shares of Common Stock shall thereafter be made. If, after the Effective Time,
Certificates are presented to the Surviving Corporation, they shall be canceled
and exchanged as provided in this Article II.

                                   ARTICLE III

                REPRESENTATIONS AND WARRANTIES OF PARENT AND SUB

     Parent and Sub hereby represent and warrant to the Company as follows:

     Section 3.1  Organization and Qualification.  Each of Parent and Sub is a
                  ------------------------------
corporation duly organized, validly existing and in good standing under the laws
of the jurisdiction of its incorporation and has the requisite corporate power
and authority necessary to own, lease and operate the properties it purports to
own, operate or lease and to carry on its business as it is now being conducted,
except as would not reasonably be expected to prevent or delay consummation of
the Merger, or otherwise materially and adversely affect the ability of Parent
or Sub to perform their respective obligations under this Agreement.

     Section 3.2  Authority Relative to this Agreement.  Each of Parent and Sub
                  ------------------------------------
has all necessary corporate power and authority to execute and deliver this
Agreement and to perform its obligations hereunder and to consummate the
transactions contemplated hereby.  The execution and delivery of this Agreement
by Parent and Sub and the consummation by Parent and Sub of the transactions
contemplated hereby have been duly and validly authorized by all necessary
corporate action on the part of Parent and Sub, and no other corporate
proceedings on the part of Parent or Sub are necessary to authorize this
Agreement or to consummate the transactions contemplated hereby.  The Board of
Directors of Parent has determined that it is advisable and in the best interest
of Parent's stockholders for Parent to enter into this Agreement and to
consummate, upon the terms and subject to the conditions of this Agreement, the
transactions contemplated hereby.  This Agreement has been duly and validly
executed and delivered by Parent and Sub and, assuming the due authorization,
execution and delivery by the Company, constitutes a legal, valid and binding
obligation of Parent and Sub.

     Section 3.3  No Conflict; Required Filings and Consents.  The execution and
                  ------------------------------------------
delivery of this Agreement by Parent and Sub do not, and the performance of this
Agreement by Parent and Sub will not, (i) conflict with or violate the Articles
of Organization (or Certificate of Incorporation) or Bylaws of Parent or Sub,
(ii) conflict with or violate any law,



                                       - 8 -



<PAGE>



rule, regulation, order, judgment or decree applicable to Parent or any of its
subsidiaries or by which its or their respective properties are bound or
affected, or (iii) result in any breach of or constitute a default (or an event
which with notice or lapse of time or both would become a default) under, or
impair Parent's or any of its subsidiaries' rights or alter the rights or
obligations of any third party under, or give to others any rights of
termination, amendment, acceleration or cancellation of, or result in the
creation of a lien or encumbrance on any of the properties or assets of Parent
or any of its subsidiaries pursuant to, any note, bond, mortgage, indenture,
contract, agreement, lease, license, permit, franchise or other instrument or
obligation to which Parent or any of its subsidiaries is a party or by which
Parent or any of its subsidiaries or its or any of their respective properties
are bound or affected, except in any such case for any such conflicts,
violations, breaches, defaults or other occurrences that would not reasonably be
expected to prevent or delay consummation of the Merger, or otherwise materially
and adversely affect the ability of Parent or Sub to perform their respective
obligations under this Agreement.

          (b)  The execution and delivery of this Agreement by Parent and Sub
does not, and the performance of this Agreement by Parent and Sub will not,
require any consent, approval, authorization or permit of, or filing with or
notification to, any governmental or regulatory authority, domestic or foreign,
except (i) for applicable requirements, if any, of the Exchange Act, the pre-
merger notification requirements of the Hart-Scott-Rodino Antitrust Improvements
Act of 1976, as amended, and the rules and regulations thereunder (the "HSR
Act"), and the filing and recordation of appropriate merger or other documents
as required by the DGCL, and (ii) where the failure to obtain such consents,
approvals, authorizations or permits, or to make such filings or notifications,
would not reasonably be expected to prevent or delay consummation of the Merger,
or otherwise materially and adversely affect the ability of Parent or Sub to
perform their respective obligations under this Agreement.

     Section 3.4  Brokers.  No broker, finder or investment banker (other than
                  -------
The Environmental Financial Consulting Group, Inc., the fees and expenses of
which will be paid by Parent) is entitled to any brokerage, finder's or other
fee or commission in connection with the transactions contemplated by this
Agreement based upon arrangements made by or on behalf of Parent or Sub.

     Section 3.5  Ownership of Sub; No Prior Activities.  (a)  Sub is a direct,
                  -------------------------------------
wholly-owned subsidiary of Parent and was formed solely for the purpose of
engaging in the transactions contemplated by this Agreement.

          (b)  As of the date hereof and the Effective Time, except for
obligations or liabilities incurred in connection with its incorporation or
organization and the transactions contemplated by this Agreement and except for
this Agreement and any other agreements or arrangements contemplated by this
Agreement, Sub has not and will not have incurred, directly or indirectly,
through any subsidiary or affiliate, any obligations or liabilities or engaged
in any business activities of any type or kind whatsoever or entered into any
agreements or arrangements with any person.



                                        - 9 -



<PAGE>



     Section 3.6  Financing.  Parent or Sub have sufficient funds available to
                  ---------
enable Sub to purchase all outstanding shares, on a fully diluted basis, of
Common Stock and to pay all fees and expenses related to the transactions
contemplated by this Agreement.

     Section 3.7  Full Disclosure.  No statement contained in any certificate or
                  ---------------
schedule furnished or to be furnished by Parent or Sub to the Company in, or
pursuant to the provisions of, this Agreement contains or shall contain any
untrue statement of a material fact or omits or will omit to state any material
fact necessary, in the light of the circumstances under which it was made, in
order to make the statements herein or therein not misleading.

                                   ARTICLE IV

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

     The Company hereby represents and warrants to Parent and Sub as follows:

     Section 4.1  Organization and Qualification; Subsidiaries.   Each of the
                  --------------------------------------------
Company and each of its subsidiaries is a corporation duly organized, validly
existing and in good standing under the laws of the jurisdiction of its
incorporation and has the requisite corporate power and authority necessary to
own, lease and operate the properties it purports to own, operate or lease and
to carry on its business as it is now being conducted, except where the failure
to be so organized, existing and in good standing or to have such power and
authority would not reasonably be expected to have a material adverse effect on
the business, assets (including intangible assets), financial condition,
prospects or results of operations of the Company and its subsidiaries taken as
a whole or on the ability of the Company to perform its obligations under this
Agreement (a "Material Adverse Effect").  Each of the Company and each of its
subsidiaries is duly qualified or licensed as a foreign corporation to do
business, and is in good standing, in each jurisdiction where the character of
its properties owned, leased or operated by it or the nature of its activities
makes such qualification or licensing necessary, except for such failures to be
so duly qualified or licensed and in good standing that would not reasonably be
expected to have a Material Adverse Effect.  A true and complete list of all of
the Company's subsidiaries, together with the jurisdiction of incorporation of
each subsidiary and the percentage of each subsidiary's outstanding capital
stock owned by the Company or another subsidiary, is set forth in Section 4.1 of
the written disclosure schedule previously delivered by the Company to Parent
(the "Disclosure Schedule").  Except as set forth in Section 4.1 of the
Disclosure Schedule or the SEC Reports (as defined below), the Company does not
directly or indirectly own any equity or similar interest in, or any interest
convertible into or exchangeable or exercisable for any equity or similar
interest in, any corporation, partnership, joint venture or other business
association or entity, with respect to which interest the Company has invested
or is required to invest $100,000 or more, excluding securities in any publicly
traded company held for investment by the Company and comprising less than five
percent of the outstanding stock of such company.



                                        - 10 -



<PAGE>



     Section 4.2  Certificate of Incorporation and Bylaws.  The Company has
                  ---------------------------------------
heretofore furnished to Parent a complete and correct copy of its Certificate of
Incorporation and Bylaws as most recently restated and subsequently amended to
date, and has furnished or made available to Parent the Certificate of
Incorporation and Bylaws (or equivalent organizational documents) of each of its
subsidiaries (the "Subsidiary Documents").  Such Certificate of Incorporation,
Bylaws and Subsidiary Documents are in full force and effect.  Neither the
Company nor any of its subsidiaries is in violation of any of the provisions of
its Certificate of Incorporation or Bylaws or Subsidiary Documents, except for
immaterial violations of the Subsidiary Documents which may exist.

     Section 4.3  Capitalization.  The authorized capital stock of the Company
                  --------------
consists of 20,000,000 shares of Common Stock and 5,000,000 shares of Preferred
Stock, par value $.10 per share (the "Preferred Stock").  As of December  1,
1995, (i) 8,751,636 shares of Common Stock were issued and outstanding, all of
which are validly issued, fully paid and nonassessable (except that 60,707 of
such shares were restricted shares issued pursuant to the 1987 Stock Plan), and
78,989 shares were held in treasury, (ii) no shares of Preferred Stock were
outstanding or held in treasury, (iii) no shares of Common Stock or Preferred
Stock were held by subsidiaries of the Company, (iv) 880,908 shares of Common
Stock were reserved for future issuance pursuant to outstanding stock options
granted under the 1987 Stock Plan and 328,955 shares were reserved for future
grants under such plan, (v) 79,624 shares of Common Stock were reserved for
future issuance upon exercise of options granted under the Director Option Plan
and 110,762 shares were reserved for future grants under such Plan, (vi) 30,572
shares of Common Stock were reserved for future issuance under The Earth
Technology Corporation (USA) 1994 Employee Stock Purchase Plan (the "Employee
Stock Purchase Plan"), (vii) 166,500 shares of Common Stock were reserved for
issuance upon exercise of the Warrants, (viii) 146,843 shares of Common Stock
were reserved for issuance pursuant to options issued by Summit Environmental
Group, Inc. and assumed by the Company, and (ix) 74,063 shares of Common Stock
were reserved for issuance pursuant to options issued by HazWaste Industries
Incorporated and assumed by the Company.  No material change in such
capitalization has occurred between December  1, 1995 and the date hereof. 
Except as set forth in Section 4.1, this Section 4.3 or Section 4.11 or in
Section 4.3 or Section 4.11 of the Disclosure Schedule or the SEC Reports, there
are no options, warrants or other rights, agreements, arrangements or
commitments of any character relating to the issued or unissued capital stock of
the Company or any of its subsidiaries or obligating the Company or any of its
subsidiaries to issue or sell any shares of capital stock of, or other equity
interests in, the Company or any of its subsidiaries.  All shares of Common
Stock subject to issuance as aforesaid, upon issuance on the terms and
conditions specified in the instruments pursuant to which they are issuable,
shall be duly authorized, validly issued, fully paid and nonassessable.  Except
as disclosed in Section 4.3 of the Disclosure Schedule or the SEC Reports, there
are no obligations, contingent or otherwise, of the Company or any of its
subsidiaries to repurchase, redeem or otherwise acquire any shares of Common
Stock or the capital stock of any subsidiary or to provide funds to or make any
investment (in the form of a loan, capital contribution or otherwise) in any
such subsidiary or any other entity other than guarantees of bank obligations of
subsidiaries entered into in the ordinary course of business.  Except as set
forth in Sections 4.1 and 4.3 of the Disclosure Schedule, all of the outstanding
shares of capital stock (other than directors' qualifying shares) of each



                                       - 11 -



<PAGE>



of the Company's subsidiaries is duly authorized, validly issued, fully paid and
nonassessable, and all such shares (other than directors' qualifying shares and
a de minimis number of shares owned by employees of such subsidiaries) are owned
by the Company or another subsidiary free and clear of all security interests,
liens, claims, pledges, agreements, limitations in the Company's voting rights,
charges or other encumbrances of any nature whatsoever.

     Section 4.4  Authority Relative to this Agreement.  The Company has all
                  ------------------------------------
necessary corporate power and authority to execute and deliver this Agreement
and to perform its obligations hereunder and to consummate the transactions
contemplated hereby.  The execution and delivery of this Agreement by the
Company and the consummation by the Company of the transactions contemplated
hereby have been duly and validly authorized by all necessary corporate action,
and no other corporate proceedings on the part of the Company are necessary to
authorize this Agreement or to consummate the transactions so contemplated
(other than the adoption of this Agreement by the holders of at least a majority
of the outstanding shares of Common Stock entitled to vote in accordance with
the DGCL and the Company's Certificate of Incorporation and Bylaws).  The Board
of Directors of the Company has determined that it is advisable and in the best
interest of the Company's stockholders for the Company to enter into this
Agreement and to consummate, upon the terms and subject to the conditions of
this Agreement, the transaction contemplated hereby.  This Agreement has been
duly and validly executed and delivered by the Company and, assuming the due
authorization, execution and delivery by Parent and Sub, as applicable,
constitutes a legal, valid and binding obligation of the Company.

     Section 4.5  Contracts; No Conflict; Required Filings and Consents.  (a) 
                  -----------------------------------------------------
Section 4.5(a) of the Disclosure Schedule includes a list of (i) all loan
agreements, indentures, mortgages, pledges, conditional sale or title retention
agreements, security agreements, equipment obligations, guaranties, standby
letters of credit, equipment leases or lease purchase agreements, each in an
amount equal to or exceeding $200,000, to which the Company or any of its
subsidiaries is a party or by which any of them is bound; and (ii) all
agreements which, as of the date hereof, are required to be filed as "material
contracts" pursuant to the requirements of the Exchange Act, as amended, and the
SEC's rules thereunder (each of the foregoing and any contract or agreement of
the Company or any of its subsidiaries with any customer listed on Schedule 4.21
of the Disclosure Schedule, being referred to as a "Material Contract").  Except
as set forth in Section 4.5(a) of the Disclosure Schedule, neither the Company
nor any of its subsidiaries is in default or violation (and no event has
occurred which with notice or lapse of time or both would constitute a default
or violation) of any Material Contract, nor, to the knowledge of the Company, is
any other party to any Material Contract in default or violation thereof (and no
event has occurred which with notice or lapse of time or both would constitute
such a default or violation), except as would not, individually or in the
aggregate, reasonably be expected to have a Material Adverse Effect.

          (b)  Except as set forth in Section 4.5(b) of the Disclosure Schedule,
the execution and delivery of this Agreement by the Company does not, and the
performance of this Agreement by the Company will not, (i) conflict with or
violate the Certificate of



                                        - 12 -



<PAGE>



Incorporation or Bylaws of the Company, (ii) conflict with or violate any law,
rule, regulation, order, judgment or decree applicable to the Company or any of
its subsidiaries or by which its or any of their respective properties is bound
or affected, or (iii) result in any breach of or constitute a default (or an
event that with notice or lapse of time or both would become a default), or
impair the Company's or any of its subsidiaries' rights or alter the rights or
obligations of any third party under, or give to others any rights of
termination, amendment, acceleration or cancellation of, or result in the
creation of a lien or encumbrance on any of the properties or assets of the
Company or any of its subsidiaries pursuant to, any note, bond, mortgage,
indenture, contract, agreement, lease, license, permit, franchise or other
instrument or obligation to which the Company or any of its subsidiaries is a
party or by which the Company or any of its subsidiaries or its or any of their
respective properties is bound or affected, except for any such conflicts,
violations,  breaches, defaults or other occurrences that would not,
individually or in the aggregate, reasonably be expected to have a Material
Adverse Effect.

          (c)  The execution and delivery of this Agreement by the Company does
not, and the performance of this Agreement by the Company will not, require any
consent, approval, authorization or permit of, or filing with or notification
to, any governmental or regulatory authority, domestic or foreign, except (i)
for applicable requirements, if any, of the Exchange Act, the pre-merger
notification requirements of the HSR, and the filing and recordation of
appropriate merger or other documents as required by the DGCL, and (ii) where
the failure to obtain such consents, approvals, authorizations or permits, or to
make such filings or notifications, would not reasonably be expected to prevent
or delay consummation of the Merger, or otherwise prevent or delay the Company
from performing its obligations under this Agreement, or would not otherwise
reasonably be expected to have a Material Adverse Effect.

     Section 4.6    Compliance; Permits.  (a)  Except as disclosed in Section
                    -------------------
4.6 of the Disclosure Schedule, neither the Company nor any of its subsidiaries
is in conflict with, or in default or violation of, any law, rule, regulation,
order, judgment or decree applicable to the Company or any of its subsidiaries
or by which its or any of their respective properties is bound or affected,
except for any such conflicts, defaults or violations which would not reasonably
be expected to have a Material Adverse Effect.

          (b)  Except as disclosed in Section 4.6 of the Disclosure Schedule or
the SEC Reports,  the Company and its subsidiaries hold all franchises, grants,
authorization, permits, licenses, easements, variances, exemptions, consents,
certificates, orders and approvals which are material to the operation of the
business of the Company and its subsidiaries taken as a whole as it is now being
conducted ("Permits").  The Company and its subsidiaries are in compliance with
the terms of the Permits, except where the failure to so comply would not
reasonably be expected to have a Material Adverse Effect.

     Section 4.7  SEC Filings; Financial Statements.  (a)  The Company has filed
                  ---------------------------------
all forms, reports and documents required to be filed with the SEC since August
27, 1993 and has made available to Parent (i) its Annual Reports on Form 10-K
for the fiscal years ended August 27, 1993, August 26, 1994 and August 25, 1995,
(ii) all proxy statements relating to



                                        - 13 -



<PAGE>



the Company's meetings of stockholders (whether annual or special) held since
August 27, 1993, (iv) all other reports or registration statements filed by the
Company with the SEC since August 27, 1993, and (v) all amendments and
supplements to all such reports and registration statements filed by the Company
with the SEC (collectively, the "SEC Reports").  Except as disclosed in Section
4.7 of the Disclosure Schedule or the SEC Reports, the SEC Reports (i) were
prepared in all material respects in accordance with the requirements of the
Securities Act of 1933, as amended, and the rules and regulations promulgated
thereunder, or the Exchange Act, as the case may be, and (ii) did not at the
time they were filed (or if amended or superseded by a filing prior to the date
of this Agreement, then on the date of such filing) contain any untrue statement
of a material fact or omit to state a material fact required to be stated
therein or necessary in order to make the statements therein, in the light of
the circumstances under which they were made, not misleading.  None of the
Company's subsidiaries is required to file any forms, reports or other documents
with the SEC.

          (b)  Each of the consolidated financial statements (including, in each
case, any related notes thereto) contained in the SEC Reports and the Company's
1995 Annual Report on Form 10-K was prepared in accordance with generally
accepted accounting principles ("GAAP") applied on a consistent basis throughout
the periods involved (except as may be indicated in the notes thereto), and each
fairly in all material respects presents the consolidated financial position of
the Company and its subsidiaries as at the respective dates thereof and the
consolidated results of its operations and cash flows for the periods indicated,
except that the unaudited interim financial statements were or are subject to
normal and recurring year-end adjustments which were not or are not expected to
be material in amount.

     Section 4.8  Absence of Certain Changes or Events.  Except as set forth in
                  ------------------------------------
Section 4.8 of the Disclosure Schedule or the SEC Reports, since August 25, 1995
the Company has conducted its business in the ordinary course and there has not
occurred:  (i) any Material Adverse Effect; (ii) any amendments or changes in
the Certificate of Incorporation or Bylaws of the Company; (iii) any damage to,
destruction or loss of any asset of the Company (whether or not covered by
insurance) that would reasonably be expected to have a Material Adverse Effect;
(iv) any material change by the Company in its accounting methods, principles or
practices; (v) any material revaluation by the Company of any of its assets,
including writing down the value of inventory or writing off notes or accounts
receivable other than in the ordinary course of business; (vi) any other action
or event that would have required the consent of Parent pursuant to Section 5.1
had such action or event occurred after the date of this Agreement; or (vii) any
sale of a material amount of property of the Company, except in the ordinary
course of business.

     Section 4.9  No Undisclosed Liabilities.  Except as set forth in Section
                  --------------------------
4.9 of the Disclosure Schedule or the SEC Reports, neither the Company nor any
of its subsidiaries has any liabilities (absolute, accrued, contingent or
otherwise), except liabilities (a) in the aggregate adequately provided for in
the Company's audited balance sheet (including any related notes thereto) for
the fiscal year ended August 25, 1995 included in the Company's 1995 Annual
Report on Form 10-K (the "1995 Balance Sheet"), (b) incurred in the ordinary
course of business and not required under GAAP to be reflected on the 1995
Balance Sheet, (c) incurred since August 25, 1995 in the ordinary course of
business consistent with past



                                        - 14 -



<PAGE>



practice, (d) incurred in connection with this Agreement, or (e) which would not
reasonably be expected to have a Material Adverse Effect.

     Section 4.10  Absence of Litigation.  Except as set forth in Section 4.10
                   ---------------------
of the Disclosure Schedule or the SEC Reports, there are no claims, actions,
suits, proceedings or investigations pending or, to the knowledge of the
Company, overtly threatened against the Company or any of its subsidiaries, or
any properties or rights of the Company or any of its subsidiaries, before any
court, arbitrator or administrative, governmental or regulatory authority or
body, domestic or foreign, that would reasonably be expected to have a Material
Adverse Effect.  Except as set forth in Section 4.10 of the Disclosure Schedule
or the SEC Reports, since August 27, 1993, there have been no actions, suits or
proceedings made or pending against the Company or any of its subsidiaries
alleging (x) any Environmental Claims (as defined in Section 4.17) or (y) any
breach by the Company or any of its subsidiaries of applicable standards of
conduct in rendering any engineering, construction, design, operation,
maintenance, management, assessment, cleanup or remediation services, except for
such actions, suits or proceedings which, in the case of either clause (x) or
(y) above, would not reasonably be expected to result in liability to the
Company or any of its subsidiaries of $50,000, in any individual case, or
$500,000 in the aggregate.

     Section 4.11  Employee Benefit Plans; Employment Agreements. (a) Section
                   ---------------------------------------------
4.11(a) of the Disclosure Schedule lists all employee pension plans (as defined
in Section 3(2) of the Employee Retirement Income Security Act of 1974, as
amended ("ERISA")), all material employee welfare plans (as defined in Section
3(1) of ERISA), and all other material bonus, stock option, stock purchase,
incentive, deferred compensation, supplemental retirement, severance and other
similar fringe or employee benefit plans, programs or arrangements, and any
employment, executive compensation or severance agreements, written or
otherwise, as amended, modified or supplemented, for the benefit of, or relating
to, any former or current employee, officer or consultant (or any of their
beneficiaries) of the Company or any other entity (whether or not incorporated)
which is a member of a controlled group including the Company or which is under
common control with the Company (an "ERISA Affiliate") within the meaning of
Section 414 of the Code or Section 4001 of ERISA, or any subsidiary of the
Company (together, the "Employee Plans").  None of the Employee Plans is subject
to Title IV of ERISA, and neither the Company nor any ERISA affiliate has any
liability (whether actual or contingent) with respect to any employee pension
plan under Section 4069 or 4212(c) of ERISA or Section 412 of the Code.  There
have been made available to Parent copies of (i) each such written Employee Plan
and all related trust agreements, insurance and other contracts (including
policies), summary plan descriptions, summaries of material modifications and
communications distributed to plan participants, (ii) the three most recent
annual reports on Form 5500 series, with accompanying schedules and attachments,
filed with respect to each Employee Plan required to make such a filing, (iii)
the latest reports which have been filed with the Department of Labor with
respect to each Employee Plan required to make such filing and (iv) favorable
determination letters issued for each Employee Plan and related trust that are
intended to satisfy the qualification requirements of Section 401(a) and Section
501(a) of the Code (or, if pending, a copy of the application for such
determination).  For purposes of this Section 4.11, the term "material," when
used with respect to (i) any Employee Plan, shall mean that the Company or an
ERISA Affiliate has incurred or may incur obligations in an amount exceeding
$100,000 with respect to such Employee Plan, and (ii) any liability, obligation,
breach or non-compliance, shall mean that the Company or an ERISA Affiliate has



                                      - 15 -



<PAGE>



incurred or may incur obligations in an amount exceeding $50,000, with respect
to any one such or series of related liabilities, obligations, breaches,
defaults, violations or instances of non-compliance.

          (b)  (i) Except as set forth in Section 4.11(b) of the Disclosure
Schedule, none of the Employee Plans promises or provides retiree medical or
other retiree welfare benefits to any person, and none of the Employee Plans is
a "multiemployer plan" as such term is defined in Section 3(37) of ERISA; (ii)
no party in interest or disqualified person (as defined in Section 3(14) of
ERISA and Section 4975 of the Code) has at any time engaged in a transaction
with respect to any Employee Plan which would reasonably be expected to subject
the Company or any ERISA Affiliate, directly or indirectly, to a material tax,
penalty or other material liability for prohibited transactions under ERISA or
Section 4975 of the Code; (iii) no fiduciary of any Employee Plan has breached
any of the responsibilities or obligations imposed upon fiduciaries under Title
I of ERISA, which breach would reasonably be expected to result in any material
liability to the Company or any ERISA Affiliate; (iv) all Employee Plans have
been established and maintained substantially in accordance with their terms and
have operated in compliance in all material respects with the requirements
prescribed by any and all statutes (including ERISA and the Code), orders, or
governmental rules and regulations currently in effect with respect thereto
(including all applicable requirements for notification to participants or the
Department of Labor, Internal Revenue Service (the "IRS") or Secretary of the
Treasury), and the Company and each of its subsidiaries have performed all
material obligations required to be performed by them under, are not in any
material respect in default under or violation of, and have no knowledge of any
default or violation by any other party to, any of the Employee Plans; (v) each
Employee Plan intended to qualify under Section 401(a) of the Code and each
trust intended to qualify under Section 501(a) of the Code is the subject of a
favorable determination letter from the IRS, and nothing has occurred which
would reasonably be expected to impair such determination; (vi) all
contributions required to be made with respect to any Employee Plan pursuant to
the terms of the Employee Plan or any collective bargaining agreement, have been
made on or before their due dates; and (vii) neither the Company nor any ERISA
Affiliate has incurred, nor reasonably expects to incur, any liability under
Title IV of ERISA (other than liability for premium payments to the Pension
Benefit Guaranty Corporation arising in the ordinary course).

          (c)  Section 4.11(c) of the Disclosure Schedule sets forth a true and
complete list of each current or former employee, officer or director of the
Company or any of its subsidiaries who holds (i) any option to purchase Common
Stock as of the date hereof, together with the number of shares of Common Stock
subject to such option, the option price of such option (to the extent
determined as of the date hereof), whether such option is intended to qualify as
an incentive stock option within the meaning of Section 422(b) of the Code (an
"ISO"), and the expiration date of such option; (ii) any other right, directly
or indirectly, to acquire Common Stock, together with the number of shares of
Common Stock subject to such right; and (iii) any restricted shares of Common
Stock, as to which the restrictions relevant thereto have not lapsed.  Section
4.11(c) of the Disclosure Schedule also



                                        - 16 -



<PAGE>



sets forth the total number of such ISOs, such nonqualified options and
such restricted shares.

          (d)  Section 4.11(d) of the Disclosure Schedule sets forth a true and
complete list of (i) all employment agreements with officers of the Company or
any of its subsidiaries; (ii) all agreements with consultants who are
individuals obligating the Company or any of its subsidiaries to make annual
cash payments in an amount exceeding $50,000; (iii) all officers of the Company
or any of its subsidiaries who have executed a non-competition agreement with
the Company or any of its subsidiaries; (iv) all severance agreements, programs
and policies of the Company or any of its subsidiaries with or relating to its
employees, in each case with outstanding commitments exceeding $100,000,
excluding programs and policies required to be maintained by law; and (v) all
Employee Plans which contain change in control provisions.

          (e)  The Company has fiduciary liability insurance of at least
$1,000,000 in effect covering the fiduciaries of the Employee Plans (including
the Company) with respect to whom the Company may have liability.

     Section 4.12  Labor Matters.  Except as set forth in Section 4.12 of the
                   -------------
Disclosure Schedule or the SEC Reports, (i) there are no controversies pending
or, to the knowledge of the Company or any of its subsidiaries, threatened,
between the Company or any of its subsidiaries and any of their respective
employees, which controversies would reasonably be expected to have a Material
Adverse Effect; (ii) neither the Company nor any of its subsidiaries is a party
to any material collective bargaining agreement or other labor union contract
applicable to persons employed by the Company or its subsidiaries, nor does the
Company or any of its subsidiaries know of any activities or proceedings of any
labor union to organize any such employees; and (iii) neither the Company nor
any of its subsidiaries has any knowledge of any strikes, slowdowns, work
stoppages, lockouts, or threats thereof, by or with respect to any employees of
the Company or any of its subsidiaries which would reasonably be expected to
have a Material Adverse Effect.

     Section 4.13  Limitation on Business Conduct.  Except as set forth in
                   ------------------------------
Section 4.13 of the Disclosure Schedule or the SEC Reports, neither the Company
nor its subsidiaries is a party to, or has any obligation under, any contract or
agreement, written or oral, which contains any covenants currently or
prospectively limiting in any material respect the freedom of the Company or any
of its subsidiaries to engage in any line of business or to compete with any
entity.

     Section 4.14  Title to Property.  Except as set forth in Section 4.14 of
                   -----------------
the Disclosure Schedule or the SEC Reports, each of the Company and each of its
subsidiaries owns the properties and assets that it purports to own free and
clear of all liens, charges, mortgages, security interests or encumbrances of
any kind ("Liens"), except for Liens which arise in the ordinary course of
business and do not materially impair the Company's or its subsidiaries'
ownership or use of such properties or assets or Liens for taxes not yet due. 
With respect to the property and assets it leases, the Company, its
subsidiaries, and to the best of the Company's knowledge each of the other
parties thereto, is in material compliance with such



                                        - 17 -



<PAGE>




leases and the Company or its subsidiaries, as the case may be, hold a valid
leasehold interest free of any Liens.  The rights, properties and assets
presently owned, leased or licensed by the Company and its subsidiaries include
all rights, properties and assets necessary to permit the Company and its
subsidiaries to conduct their business in all material respects in the same
manner as their businesses have been conducted prior to the date hereof.

     Section 4.15  Real Property; Leased Premises.  (a)   Each of the buildings,
                   ------------------------------
improvements and structures located upon any real property and land owned by the
Company or any of its subsidiaries (collectively, the "Real Property"), and each
of the buildings, structures and premises leased by the Company or any of its
subsidiaries (the "Leased Premises"), is in reasonably good repair and operating
condition, except as would not reasonably be expected to have a Material Adverse
Effect.

          (b)  Except as set forth in Section 4.15 of the Disclosure Schedule,
the Company has not received any notice of or writing referring to any
requirements by any insurance company that has issued a policy covering any part
of any Real Property or Leased Premises or by any board of fire underwriters or
other body exercising similar functions, requiring any repairs or work to be
done on any part of any Real Property or Leased Premises, except as would not
reasonably be expected to have a Material Adverse Effect.

          (c)  Except as set forth in Section 4.15 of the Disclosure Schedule,
all public utilities used in the operation of each Real Property or Leased
Premises in the manner currently operated are installed and operating, and all
installation and connection charges have been paid in full or provided for; and
the plumbing, electrical, heating, air conditioning, ventilating, septic and all
other structural or material mechanical systems in the buildings upon the Real
Property and Leased Properties are in good working order and working condition,
so as to be adequate for the operation of the business of the Company and its
subsidiaries as heretofore conducted, except as would not reasonably be expected
to have a Material Adverse Effect.

     Section 4.16  Taxes.  (a)  For purposes of this Agreement, "Tax" or "Taxes"
                   -----
shall mean taxes, fees, levies, duties, tariffs, imposts, and governmental
impositions or charges of any kind in the nature of (or similar to) taxes,
payable to any federal, state, local or foreign taxing authority, including (i)
income, franchise, profits, gross receipts, ad valorem, net worth, value added,
                                            ----------
sales, use, service, real or personal property, special assessments, capital
stock, license, payroll, withholding, employment, social security, workers'
compensation, unemployment compensation, utility, severance, production, excise,
stamp, occupation, premiums, windfall profits, transfer and gains taxes, and
(ii) interest, penalties, additional taxes and additions to tax imposed with
respect thereto; and "Tax Returns" shall mean returns, reports, and information
statements with respect to Taxes required to be filed with the IRS or any other
taxing authority, domestic or foreign, including consolidated, combined and
unitary tax returns (and including returns required in connection with any
Employee Plan).

          (b)  Other than as disclosed in Section 4.16(b) of the Disclosure
Schedule or the SEC Reports:  The Company and its subsidiaries have filed all
United States federal



                                        - 18 -



<PAGE>



income Tax Returns and all other material Tax Returns required to be filed by
them, and the Company and its subsidiaries have paid and discharged all material
Taxes due in connection with or with respect to the periods or transactions
covered by such Tax Returns and have paid all other material Taxes as are due,
except such as are being contested in good faith by appropriate proceedings (to
the extent that any such proceedings are required) and with respect to which the
Company is maintaining reserves to the extent currently required, unless the
failure to do so would not reasonably be expected to have a Material Adverse
Effect.  Except as does not involve or would not result in liability to the
Company or any of its subsidiaries that would reasonably be expected to have a
Material Adverse Effect, (i) there are no Tax liens on any assets of the Company
or any subsidiary thereof except in respect of Taxes not yet due; and
(ii) neither the Company nor any of its subsidiaries has granted any waiver of
any statute of limitations with respect to, or any extension of a period for the
assessment of, any Tax.  To the best knowledge of the Company, there are no
pending or threatened audits, investigations or claims for or relating to any
liability of or in respect of material Taxes of the Company or any of its
subsidiaries.  The accruals and reserves for Taxes (including deferred taxes)
reflected in the 1995 Balance Sheet are in all material respects adequate to
cover all Taxes accruable through the date thereof (including interest and
penalties, if any, thereon and Taxes being contested) in accordance with GAAP.

     Section 4.17  Environmental Matters.  (a)  Except as set forth in Section
                   ---------------------
4.17(a) of the Disclosure Schedule or the SEC Reports, the Company and its
subsidiaries are in material compliance with the Environmental Laws (as
hereinafter defined), which compliance includes the possession by the Company
and its subsidiaries of all permits and governmental authorizations required
under applicable Environmental Laws, and compliance in all respects with the
terms and conditions thereof, except in each case where such non-compliance
would not reasonably be expected to have a Material Adverse Effect.  Except as
set forth in Section 4.17(a) of the Disclosure Schedule, neither the Company nor
any of its subsidiaries has received any communication (written or oral),
whether from a governmental authority, citizens group, employee or otherwise,
that alleges that the Company or any of its subsidiaries is not in such material
compliance, and there are no circumstances that may prevent or interfere with
such compliance in the future, except where such non-compliance would not
reasonably be expected to have a Material Adverse Effect.  Except as set forth
in Section 4.17(a) of the Disclosure Schedule, there are no permits or other
governmental authorizations currently held by the Company or any of its
subsidiaries pursuant to the Environmental Laws.

          (b)  There are no Environmental Claims (as hereinafter defined),
including claims based on "arranger liability," pending or, to the best
knowledge of the Company, threatened against the Company or any of its
subsidiaries or against any person or entity whose liability for any
Environmental Claim the Company or any of its subsidiaries has retained or
assumed either contractually or by operation of law, except for such
Environmental Claims that would not reasonably be expected to have a Material
Adverse Effect.

          (c)  To the best knowledge of the Company, except as set forth in
Section 4.17(c) of the Disclosure Schedule, there are no past or present
actions, inactions, activities,



                                        - 19 -



<PAGE>



circumstances, conditions, events or incidents, including the release, emission,
discharge, presence or disposal of any Material of Environmental Concern (as
hereinafter defined), that would form the basis of any Environmental Claim
against the Company or any of its subsidiaries or against any person or entity
whose liability for any Environmental Claim the Company or any of its
subsidiaries have retained or assumed either contractually or by operation of
law, except for such Environmental Claims that would not reasonably be expected
to have a Material Adverse Effect.

          (d)  Without in any way limiting the generality of the foregoing,
Section 4.17(d) of the Disclosure Schedule sets forth (i) all on-site and off-
site locations where the Company or any of its subsidiaries has stored, disposed
or arranged for the disposal of Materials of Environmental Concern for itself
(but not on behalf of others) and (ii) any underground storage tanks, and the
capacity and contents of such tanks, located on property owned or leased by the
Company or any of its subsidiaries.  Except as set forth in Section 4.17(d) of
the Disclosure Schedule, there is no asbestos contained in or forming part of
any building, building component, structure or office space owned or leased by
the Company or any of its subsidiaries.  Except as set forth in Section 4.17(d)
of the Disclosure Schedule, no polychlorinated biphenyls (PCB's) or PCB-
containing items are used or stored at any property owned or leased by the
Company or any of its subsidiaries.

          (e)  For purposes of this Agreement:

          (i)  "Environmental Claim" means any claim, action, cause of action,
     investigation or notice (written or oral) by any person or entity alleging
     potential liability (including potential liability for investigatory costs,
     cleanup costs, governmental response costs, natural resources damages,
     property damages, personal injuries, or penalties) arising out of, based on
     or resulting from (x) the presence, or release into the environment, of any
     Material of Environmental Concern at any location, whether or not owned or
     operated by the Company or any of its subsidiaries, or (y) circumstances
     forming the basis of any violation, or alleged violation, of any
     Environmental Law.

          (ii) "Environmental Laws" means all Federal, state, local and foreign
     laws or regulations relating to pollution or protection of human health and
     the environment (including ambient air, surface water, ground water, land
     surface or sub-surface strata), including laws and regulations relating to
     emissions, discharges, releases or threatened releases of Materials of
     Environmental Concern, or otherwise relating to the manufacture,
     processing, distribution, use, treatment, storage, disposal, transport or
     handling of Materials of Environmental Concern.

          (iii)     "Materials of Environmental Concern" means chemicals,
     pollutants, contaminants, hazardous materials, hazardous substances and
     hazardous wastes, toxic substances, petroleum and petroleum products.

     Section 4.18  Intellectual Property.  (a)  The Company and/or each of its
                   ---------------------
subsidiaries owns, or is licensed or otherwise possesses legally enforceable
rights to use all patents,



                                        - 20 -



<PAGE>



trademarks, trade names, service marks, copyrights, and any applications
therefor, technology, know-how, computer software programs or applications, and
tangible or intangible proprietary information or material that are used in the
business of the Company and its subsidiaries as currently conducted, except as
would not reasonably be expected to have a Material Adverse Effect. 

          (b)  To the best knowledge of the Company, there are no valid grounds
for any bona fide claims (i) to the effect that the business of the Company or
any of its subsidiaries infringes on any copyright, patent, trademark, service
mark or trade secret; (ii) against the use by the Company or any of its
subsidiaries, of any trademarks, trade names, trade secrets, copyrights,
patents, technology, know-how or computer software programs and applications
used in the business of the Company or any of its subsidiaries as currently
conducted or as proposed to be conducted; (iii) challenging the ownership,
validity or effectiveness of any of the patents, registered and material
unregistered trademarks and service marks, registered copyrights, trade names
and any applications therefor owned by the Company or any of its subsidiaries
(the "Company Intellectual Property Rights") or other trade secret material to
the Company; or (iv) challenging the license or legally enforceable right to use
of any third-party patents, trademarks, service marks and copyrights by the
Company or any of its subsidiaries, except, in each case, for claims that, if
determined adversely to the Company, would not reasonably be expected to have a
Material Adverse Effect.

          (c)  To the best knowledge of the Company, all material patents,
registered trademarks, service marks and copyrights held by the Company are
valid and subsisting.  Except as set forth in Section 4.18(c) of the Disclosure
Schedule or the SEC Reports, to the Company's knowledge, there is no material
unauthorized use, infringement or misappropriation of any of the Company
Intellectual Property by any third party, including any employee or former
employee of the Company or any of its subsidiaries.  

     Section 4.19  Insurance.  All material fire and casualty, general
                   ---------
liability, professional liability, business interruption, product liability and
sprinkler and water damage insurance policies maintained by the Company or any
of its subsidiaries are with reputable insurance carriers, are in full force and
effect with no premium delinquencies, provide full and adequate coverage for all
normal risks incident to the business of the Company and its subsidiaries and
their respective properties and assets and are in character and amount at least
equivalent to that carried by persons engaged in similar businesses and subject
to the same or similar perils or hazards, except as would not reasonably be
expected to have a Material Adverse Effect.

     Section 4.20  Accounts Receivable.  The accounts receivable of the Company
                   -------------------
and its subsidiaries as reflected in the most recent financial statements
contained in the SEC Reports, to the extent uncollected on the date hereof, and
the accounts receivable reflected on the books of the Company and its
subsidiaries are valid and existing and represent monies due, and the Company
has made reserves reasonably considered adequate for receivables not collectible
in the ordinary course of business, and (subject to the aforesaid reserves) are
subject to no refunds or other adjustments and to no defenses, rights of setoff,
assignments,



                                        - 21 -



<PAGE>



restrictions, encumbrances or conditions enforceable by third parties on or
affecting any thereof, except for such refunds, adjustments, defenses, rights of
setoff, assignments, restrictions, encumbrances or conditions as would not
reasonably be expected to have a Material Adverse Effect.

     Section 4.21  Customers.  Section 4.21 of the Disclosure Schedule sets
                   ---------
forth a list of the Company's twenty five (25) largest customers (detailed, in
the case of government agencies, by separate government agency) in terms of
gross sales for the fiscal year ended August 25, 1995.  Except as set forth in
Section 4.21 of the Disclosure Schedule, since August 25, 1995 there have not
been any changes in the business relationships of the Company with any of the
customers named therein that would constitute a Material Adverse Effect.

     Section 4.22  Interested Party Transactions.  Except as set forth in
                   -----------------------------
Section 4.22 of the Disclosure Schedule or the SEC Reports, since the date of
the Company's proxy statement dated January 19, 1995, no event has occurred that
would be required to be reported as a Certain Relationship or Related
Transaction, pursuant to Item 404 of Regulation S-K promulgated by the SEC,
except for contracts entered into in the ordinary course of business of the
Company, on an arms-length basis, with terms no less favorable to the Company
than would reasonably be expected in a similar transaction with an unaffiliated
third party.

     Section 4.23   Absence of Certain Payments.  None of the Company, any of
                    ---------------------------
its subsidiaries, or any of their affiliates or any of their respective
officers, directors, employees or agents or other people acting on behalf of any
of them have (i) engaged in any activity prohibited by the United States Foreign
Corrupt Practices Act of 1977 or any other similar law, regulation, decree,
directive or order of any other country and (ii) without limiting the generality
of the preceding clause (i), used any corporate or other funds for unlawful
contributions, payments, gifts or entertainment, or made any unlawful
expenditures relating to political activity to government officials or others. 
None of the Company, any of its subsidiaries or any of their affiliates or any
of their respective directors, officers, employees or agents of other persons
acting on behalf of any of them, has accepted or received any unlawful
contributions, payments, gifts or expenditures.

     Section 4.24   Takeover Statute.  The Board of Directors of the Company has
                    ----------------
taken all appropriate action so that neither Parent nor Sub will be an
"interested stockholder" within the meaning of Section 203 of the DGCL.

     Section 4.25  Opinion of Financial Advisor.  The Company has been advised
                   ----------------------------
by its financial advisor, Alex. Brown & Sons Incorporated that in its opinion,
as of the date hereof, the Merger Consideration is fair to the holders of the
Common Stock.

     Section 4.26  Brokers.  No broker, finder or investment banker (other than
                   -------
Alex. Brown & Sons Incorporated, the fees and expenses of whom will be paid by
the Company) is entitled to any brokerage, finder's or other fee or commission
in connection with the transactions contemplated by this Agreement based upon
arrangements made by or on behalf of the Company.  The Company has heretofore
furnished to Parent a complete and correct



                                        - 22 -



<PAGE>



copy of all agreements between the Company and Alex. Brown & Sons Incorporated
pursuant to which such firm would be entitled to any payment relating to the
transactions contemplated hereunder.

     Section 4.27  Full Disclosure.  (i) No statement contained in any
                   ---------------
certificate or schedule furnished or to be furnished by the Company or its
subsidiaries to Parent or Sub in, or pursuant to the provisions of, this
Agreement and (ii) none of the monthly consolidated financial statements for
September 1995 and October 1995 furnished by the Company to Parent, including
the accompanying commentary, contains or shall contain any untrue statement of a
material fact or omits or will omit to state any material fact necessary, in the
light of the circumstances under which it was made, in order to make the
statements herein or therein not misleading.


                                    ARTICLE V

                    COVENANTS RELATING TO CONDUCT OF BUSINESS

     Section 5.1  Conduct of Business by the Company Pending the Merger.  Except
                  -----------------------------------------------------
as otherwise expressly contemplated by this Agreement or consented to in advance
by Parent (which consent is subsequently confirmed in writing), which consent
shall not be unreasonably withheld, during the period from the date of this
Agreement through the earlier of the time that the change in composition of the
Board of Directors of the Company contemplated by Section 6.8 has occurred and
the Effective Time, the Company shall, and shall cause its subsidiaries to, in
all material respects carry on their respective businesses in, and not enter
into any material transaction other than in accordance with, the regular and
ordinary course and, to the extent consistent therewith, use its reasonable best
efforts to preserve intact their current business organizations, keep available
the services of their current officers and employees and preserve their
relationships with customers, suppliers and others having business dealings with
them.  Without limiting the generality of the foregoing, and except as otherwise
expressly contemplated by this Agreement (including the time period specified
above), the Company shall not, and shall not permit any of its subsidiaries to,
without the prior consent of Parent (which consent is subsequently confirmed in
writing), which consent shall not be unreasonably withheld:

          (a)  (i) declare, set aside or pay any dividends on, or make any other
     actual, constructive or deemed distributions in respect of, any of its
     capital stock, or otherwise make any payments to stockholders of the
     Company in their capacity as such, other than dividends payable to the
     Company declared by any of the Company's subsidiaries, (ii) split, combine
     or reclassify any of its capital stock or issue or authorize the issuance
     of any other securities in respect of, in lieu of or in substitution for
     shares of its capital stock or (iii) purchase, redeem or otherwise acquire
     any shares of capital stock of the Company or any of its subsidiaries or
     any other securities thereof or any rights, warrants or options to acquire
     any such shares or other securities;



                                        - 23 -



<PAGE>



          (b)  issue, deliver, sell, pledge, dispose of or otherwise encumber
     any shares of its capital stock, any other voting securities or equity
     equivalent or any securities convertible into, or any rights, warrants or
     options to acquire, any such shares, voting securities or convertible
     securities or equity equivalent (other than, in the case of the Company,
     the issuance of Common Stock during the period from the date of this
     Agreement through the Effective Time upon the exercise of Stock Options or
     Warrants outstanding on the date of this Agreement in accordance with their
     current terms);

          (c)  amend or change its Certificate of Incorporation or Bylaws; 

          (d)  acquire or agree to acquire by merging or consolidating with, or
     by purchasing a substantial portion of the assets of or equity in, or by
     any other manner, any business or any corporation, partnership, association
     or other business organization or division thereof or otherwise acquire or
     agree to acquire any assets, in each case that are material, individually
     or in the aggregate, to the Company and its subsidiaries taken as a whole;

          (e)  sell, lease or otherwise dispose of, or agree to sell, lease or
     otherwise dispose of, any of its assets that are material, individually or
     in the aggregate, to the Company and its subsidiaries taken as a whole;

          (f)  make any commitment or enter into any contract or agreement
     except (i) in the ordinary course of business consistent with past practice
     or (ii) for capital expenditures to be made in fiscal 1996 as identified in
     a capital expenditure budget previously delivered to Parent;

          (g)  incur any indebtedness for borrowed money or guarantee any such
     indebtedness or issue or sell any debt securities or guarantee any debt
     securities of others, except for borrowings or guarantees incurred in the
     ordinary course of business consistent with past practice under financing
     arrangements in existence on the date hereof, or make any loans, advances
     or capital contributions to, or investments in, any other person, other
     than to the Company or any wholly owned subsidiary of the Company and other
     than in the ordinary course of business consistent with past practice;

          (h)  alter through merger, liquidation, reorganization, restructuring
     or in any other fashion the corporate structure or ownership of any
     subsidiary of the Company;

          (i)  except as may be required as a result of a change in law or
     pursuant to GAAP, change any of the accounting principles or practices used
     by it;

          (j)  make any tax election or settle or compromise any material income
     tax liability;



                                        - 24 -



<PAGE>



          (k)  pay, discharge or satisfy any claims, liabilities or obligations
     (absolute, accrued, asserted or unasserted, contingent or otherwise), other
     than the payment, discharge or satisfaction in the ordinary course of
     business and consistent with past practice of liabilities reflected or
     reserved against in, or contemplated by, the financial statements (or the
     notes thereto) of the Company or incurred in the ordinary course of
     business consistent with past practice;

          (l)  increase in any manner the compensation or fringe benefits of any
     of its directors, officers and other key employees or pay any pension or
     retirement allowance not required by any existing plan or agreement to any
     such employees, or become a party to, amend or commit itself to any
     pension, retirement, profit-sharing or welfare benefit plan or agreement or
     employment agreement with or for the benefit of any employee, other than
     increases in the compensation of employees who are not officers or
     directors of the Company made in the ordinary course of business consistent
     with past practice, or (except pursuant to the terms of preexisting plans
     or agreements) accelerate the vesting of any compensation or benefit;

          (m)  except in connection with the exercise of its fiduciary duties by
     the Board of Directors of the Company as set forth in Section 5.2, waive,
     amend or allow to lapse any term or condition of any confidentiality or
     "standstill" agreement to which the Company or any subsidiary is a party;
     or

          (n)  take, or agree in writing or otherwise to take, any of the
     foregoing actions or any action which would make any of the representations
     or warranties of the Company contained in this Agreement untrue or
     incorrect at or prior to the Effective Time.

     Section 5.2  Acquisition Proposals.  From and after the date of this
                  ---------------------
Agreement and prior to the Effective Time, except as provided below, the Company
agrees (i) that neither the Company nor its subsidiaries shall, and the Company
shall direct and use its reasonable best efforts to cause its officers,
directors, employees and authorized agents and representatives (including any
investment banker, attorney or accountant retained by it or any of its
subsidiaries) not to, initiate, solicit or encourage, directly or indirectly,
any inquiries or the making or implementation of any proposal or offer
(including any proposal or offer to its stockholders) with respect to a merger,
acquisition, consolidation or similar transaction involving, or any purchase of,
any equity securities or all or any significant portion of the assets of, the
Company or its subsidiaries (any such proposal or offer being hereinafter
referred to as an "Acquisition Proposal"; provided, however, that for purposes
                                          --------  -------
of Section 6.3 only, the term "Acquisition Proposal" shall not include a
proposal to acquire equity securities of the Company in an amount, when added to
all other equity securities of the Company then held by the person or group of
persons making such Acquisition Proposal, less than 20% of the equity securities
of the Company then outstanding) or engage in any negotiations concerning, or
provide any confidential information or data to, or have any discussions with,
any person or entity relating to an Acquisition Proposal, or otherwise
facilitate any effort or attempt to make or implement an Acquisition Proposal;
(ii) that it will immediately cease and cause to be terminated any existing
activities, discussions or negotiations with any person or


                                        - 25 -


<PAGE>

entity conducted heretofore with respect to any of the foregoing and will take
the necessary steps to inform the person or entity referred to above of the
obligations undertaken in this Section 5.2; and (iii) that it will notify Parent
immediately if any such inquiries or proposals are received by, any such
information is requested from, or any such negotiations or discussions are
sought to be initiated or continued with, it (but the Company shall not be
required to disclose the names of any party making or the terms of any such
proposal); provided, however, that nothing contained in this Section 5.2 shall
           --------  -------
prohibit the Board of Directors of the Company from (x) furnishing information
to, or entering into discussions or negotiations with, any person or entity that
makes an unsolicited bona fide proposal in writing to engage in an Acquisition
Proposal transaction which the Board of Directors of the Company in good faith
determines represents a financially superior transaction for the stockholders of
the Company as compared to the Offer and the Merger if, and only to the extent
that, (A) the Board of Directors determines, after consultation with Skadden,
Arps, Slate, Meagher & Flom, or such other outside counsel of national
reputation for its expertise in corporate and securities law matters as the
Company shall select ("Company Counsel"), that failure to take such action would
be inconsistent with the compliance by the Board of Directors with its fiduciary
duties to stockholders imposed by law, (B) prior to or concurrently with
furnishing such information to, or entering into discussions or negotiations
with, such a person or entity, the Company provides written notice to Parent to
the effect that it is furnishing information to, or entering into discussions or
negotiations with, such a person or entity, and (C) the Company keeps Parent
informed of the status (excluding, however, the identity of such person or
entity and the terms of any proposal) of any such discussions or negotiations;
and (y) to the extent applicable, complying with Rule 14e-2 promulgated under
the Exchange Act with regard to an Acquisition Proposal.  Nothing in this
Section 5.2 shall (t) permit the Company to terminate this Agreement (except as
contemplated by Section 8.1(b)(ii)), (u) permit the Company to enter into any
agreement with respect to an Acquisition Proposal during the term of this
Agreement, or (v) affect any other obligation of any party under this Agreement.

     Section 5.3  Annual Meeting of Stockholders.  The Company shall defer
                  ------------------------------
and/or postpone the holding of its Annual Meeting of Stockholders (the "Annual
Meeting") indefinitely pending consummation of the Merger unless the Company is
otherwise required to hold the Annual Meeting by an order from a court of
competent jurisdiction.

     Section 5.4  Conduct of Business of Sub Pending the Merger.  During the
                  ---------------------------------------------
period from the date of this Agreement through the Effective Time, Sub shall not
engage in any activities of any nature except as provided in or contemplated by
this Agreement.


                                   ARTICLE VI

                              ADDITIONAL AGREEMENTS

     Section 6.1  Company Stockholder Approval; Proxy Statement.  (a) If
                  ---------------------------------------------
approval or action in respect of the Merger by the stockholders of the Company
is required by applicable law, the Company shall (i) if appropriate, call a
meeting of its stockholders (the "Stockholder


                                        - 26 -


<PAGE>

Meeting") for the purpose of voting upon the Merger and shall use its reasonable
best efforts to obtain stockholder approval of the Merger, (ii) hold the
Stockholder Meeting as soon as practicable following the purchase of shares of
Common Stock pursuant to the Offer, (iii) recommend to its stockholders the
approval of the Merger through its Board of Directors, and (iv) use its
reasonable best efforts to obtain the necessary approvals by its stockholders of
the Merger, this Agreement and the transactions contemplated hereby, but subject
in each case to the fiduciary duties of its Board of Directors under applicable
law as determined by the Board of Directors in good faith after consultation
with Company Counsel.  The record date for the Stockholder Meeting shall be a
date subsequent to the date Parent or Sub becomes a record holder of Common
Stock purchased pursuant to the Offer.

          (b)  If required by applicable law, the Company will, as soon as
practicable following the expiration of the Offer, prepare and file a
preliminary version of the proxy statement to be sent to the stockholders of the
Company in connection with the Stockholders Meeting (the "Proxy Statement"), or,
if applicable, an information statement in lieu of a proxy statement pursuant to
Rule 14C under the Exchange Act (with all references herein to the Proxy
Statement being deemed to refer to such information statement, to the extent
applicable) with the SEC with respect to the Stockholders Meeting and will use
its reasonable best efforts to respond to any comments of the SEC or its staff
and to cause the Proxy Statement to be cleared by the SEC. The Company will
notify Parent of the receipt of any comments from the SEC or its staff and of
any request by the SEC or its staff for amendments or supplements to the Proxy
Statement or for additional information and will supply Parent with copies of
all correspondence between the Company or any of its representatives, on the one
hand, and the SEC or its staff, on the other hand, with respect to the Proxy
Statement or the Merger.  The Company shall give Parent and its counsel the
opportunity to review the Proxy Statement prior to its being filed with the SEC
and shall give Parent and its counsel the opportunity to review all amendments
and supplements to the Proxy Statement and all responses to requests for
additional information and replies to comments prior to their being filed with,
or sent to, the SEC. Each of the Company and Parent agrees to use its reasonable
best efforts, after consultation with the other parties hereto, to respond
promptly to all such comments of and requests by the SEC. As promptly as
practicable after the Proxy Statement has been cleared by the SEC, the Company
shall mail the Proxy Statement to the stockholders of the Company. If at any
time prior to the approval of this Agreement by the Company's stockholders there
shall occur any event that should be set forth in an amendment or supplement to
the Proxy Statement, the Company will prepare and mail to its stockholders such
an amendment or supplement.  The Company represents and warrants to Parent and
Sub that the Proxy Statement (x) will not, on the date the Proxy Statement (or
any amendment or supplement thereto) is first mailed to stockholders, at the
time of the Stockholders Meeting, or at the Effective Time, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in the
light of the circumstances under which they are made, not misleading; and (y)
will comply in all material respects with the requirements of the Exchange Act. 
Notwithstanding the foregoing, the Company makes no representation or warranty
with respect to any information supplied by Parent or Sub in writing for
inclusion in the Proxy Statement.


                                        - 27 -


<PAGE>

          (c)  Parent agrees to cause all shares of Common Stock purchased
pursuant to the Offer and all other shares of Common Stock owned by Sub or any
other subsidiary or affiliate of Parent to be voted in favor of the approval of
the Merger.

          (d)  Parent and Sub represent and warrant to the Company that the
information supplied by Parent or Sub in writing for inclusion in the Proxy
Statement (or any amendment or supplement thereto) will not, on the date the
Proxy Statement is first mailed to stockholders, at the time of the Stockholders
Meeting or at the Effective Time contain any untrue statement of a material fact
or omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in the light of the circumstances under
which they were made, not misleading.  

     Section 6.2  Access to Information; Confidentiality.  The Company shall,
                  --------------------------------------
and shall cause each of its subsidiaries to, afford to Parent, and to Parent's
accountants, counsel, financial advisers and other representatives, reasonable
access and permit them to make such inspections as they may reasonably require
during normal business hours during the period from the date of this Agreement
through the Effective Time to all their respective properties, books, contracts,
commitments and records and, during such period, the Company shall, and shall
cause each of its subsidiaries to, furnish promptly to Parent (i) a copy of each
report, schedule, registration statement and other document filed by it during
such period pursuant to the requirements of federal or state securities laws and
(ii) all other information concerning its business, properties and personnel as
Parent may reasonably request.

     Section 6.3  Fees and Expenses.  (a)  Except as provided in subsection (b)
                  -----------------
below, whether or not the Merger is consummated, all costs and expenses incurred
in connection with this Agreement and the transactions contemplated hereby shall
be paid by the party incurring such costs and expenses.

          (b)  The Company agrees that if this Agreement is terminated pursuant
to (i) Section 8.1(d) (iv) and (x) the Offer has remained open for a minimum of
    -
twenty (20) business days, (y) the Minimum Condition has not been satisfied and
(z) an Acquisition Proposal existed; (ii) Section 8.1(b)(ii); (iii) Section
                                      --                       ---
8.1(c)(i); (iv) Section 8.1(c)(iii); or (v) Section 8.1(d)(i) or (iv) and, with
            --                           -
respect to this clause (v), at the time of such termination any person, entity
                        -
or group (as defined in Section 13(d)(3) of the Exchange Act) (other than Parent
or any of its affiliates) shall have become the beneficial owner of more than
20% of the outstanding shares of Common Stock and such person, entity or group
(or any affiliate of such person, entity or group) thereafter (x) shall make an
Acquisition Proposal, and, in the case of a consensual transaction with the
Company, shall substantially have negotiated the terms thereof, at any time on
or prior to the date which is six months after such termination of this
Agreement, and (y) shall consummate such Acquisition Proposal at any time on or
prior to the date which is one year after termination of this Agreement, in the
case of a consensual transaction, or six months after termination of this
Agreement, in the case of a non-consensual transaction, in each case with a
value per share of Common Stock of at least $8.00 (with appropriate adjustments
for reclassifications of capital stock, stock dividends, stock splits, reverse
stock splits and similar events), then the Company shall pay to Parent the sum
of (a) $2.4 million, plus (b) the amount of all documented out-of-pocket costs
and


                                        - 28 -


<PAGE>

expenses incurred by Parent, Sub or their affiliates in an aggregate amount not
to exceed $200,000 in connection with this Agreement or the transactions
contemplated hereby. Such payment shall be made as promptly as practicable but
in no event later than two business days following termination of this Agreement
pursuant to the immediately preceding sentence, or, in the case of clause (v) of
                                                                           -
the immediately preceding sentence, upon consummation of such Acquisition
Proposal, and shall be made by wire transfer of immediately available funds to
an account designated by Parent.

     Section 6.4  Stock Plans and Warrants.  Prior to the Effective Time, the
                  ------------------------
Company shall adopt any such amendments to its plans under which any Stock
Options have been granted, shall use its reasonable best efforts to obtain any
such consents of the holders of such Stock Options and shall cause the
committees of the Board of Directors that are responsible for the administration
of such plans to take such action as shall be necessary to effectuate the
provisions of Section 2.5(d).  The Company shall terminate the 1987 Stock Plan,
the Director Option Plan and the Employee Stock Purchase Plan, with respect to
any further grants, as of the Effective Time.  The Company shall give written
notice of the Merger to each registered holder of the Warrants at least twenty
(20) days prior to the Effective Time.

     Section 6.5  Reasonable Best Efforts.  Upon the terms and subject to the
                  -----------------------
conditions set forth in this Agreement, each of the parties agrees to use its
reasonable best efforts to take, or cause to be taken, all actions (including
entering into transactions), and to do, or cause to be done, and to assist and
cooperate with the other parties in doing, all things necessary, proper or
advisable to consummate and make effective, in the most expeditious manner
practicable, the Merger, and the other transactions contemplated by this
Agreement, including (a) the prompt making of their respective filings
(including under the HSR Act) and thereafter the making of any other required
submission with respect to the Offer and the Merger, (b) the obtaining of all
additional necessary actions or non-actions, waivers, consents and approvals
from any applicable federal, state, foreign or supranational court, commission,
governmental body, regulatory or administrative agency, authority or tribunal 
of competent jurisdiction (a "Governmental Entity") and the making of all
necessary registrations and filings (including filings with Governmental
Entities) and the taking of all reasonable steps as may be necessary to obtain
an approval or waiver from any Governmental Entity, (c) the obtaining of all
necessary consents, approvals or waivers from third parties, (d) the defending
of any lawsuits or other legal proceedings, whether judicial or administrative,
challenging this Agreement or the consummation of the transactions contemplated
hereby, including seeking to have any stay or temporary restraining order
entered by any court or other Governmental Entity vacated or reversed, and (e)
the execution and delivery of any additional instruments necessary to consummate
the transactions contemplated by this Agreement; provided, however, that neither
                                                 --------  -------
Parent, Sub nor the Company shall be required to take any action pursuant to
clauses (b), (c), (d) or (e) above that would in any event have a Material
Adverse Effect, in the case of the Company, or any similar effect on Parent
and/or its subsidiaries; and provided further that neither Parent, Sub nor any
                             -------- -------
of their affiliates shall be required to enter into any transaction or take any
other action that would require a waiver of, or that is inconsistent with
satisfaction of, the conditions of the Offer set forth in clauses (a)(iii), (iv)
or (v) in Exhibit A hereto.


                                        - 29 -


<PAGE>

     Section 6.6  Public Announcements.  Parent and Sub, on the one hand, and
                  --------------------
the Company, on the other hand, will consult with each other before issuing any
press release or otherwise making any public statements with respect to the
transactions contemplated by this Agreement, and shall not issue any such press
release or make any such public statement prior to such consultation, except as
may be required by applicable law or by obligations pursuant to any listing
agreement with any national securities exchange.

     Section 6.7  Indemnification; Directors and Officers Insurance.  (a) From
                  -------------------------------------------------
and after the Effective Time, the Surviving Corporation shall indemnify and hold
harmless all past and present officers and directors (the "Indemnified Parties")
of the Company and of its subsidiaries to the full extent such persons may be
indemnified by the Company pursuant to Delaware law, the Company's Certificate
of Incorporation and Bylaws as in effect from time to time for acts and
omissions occurring at or prior to the Effective Time and shall advance
reasonable litigation expenses incurred by such persons in connection with
defending any action arising out of such acts or omissions, provided that such
persons provide the requisite affirmations and undertaking, as set forth in
Section 145(e) of the DGCL.

          (b)  In addition, Parent will provide, or cause the Surviving
Corporation to provide, for a period of not less than six years after the
Effective Time, the Company's current directors and officers an insurance and
indemnification policy that provides coverage for events occurring at or prior
to the Effective Time (the "D&O Insurance") that is no less favorable than the
existing policy or, if substantially equivalent insurance coverage is
unavailable, the best available coverage; provided, however, that Parent and the
                                          --------  -------
Surviving Corporation shall not be required to pay an annual premium for the D&O
Insurance in excess of 200% of the annual premium currently paid by the Company
for such insurance, but in such case shall purchase as much such coverage as
possible for such amount.

          (c)  This Section 6.7 is intended to benefit the Indemnified Parties
and shall be binding on all successors and assigns of Parent, Sub, the Company
and the Surviving Corporation. Parent hereby guarantees the performance by the
Surviving Corporation of the indemnified obligations pursuant to this Section
6.7, which guaranty is absolute and unconditional and shall not be affected by
any circumstance whatsoever, including the bankruptcy or insolvency of the
Surviving Corporation or any other person.  The Indemnified Parties shall be
intended third-party beneficiaries of this Section 6.7.

     Section 6.8  Board Representation.  (a)  Promptly upon the purchase of
                  --------------------
shares of Common Stock pursuant to the Offer, Parent shall be entitled to
designate such number of directors, rounded up to the next whole number, on the
Board of Directors of the Company as will give Parent, subject to compliance
with Section 14(f) of the Exchange Act, representation on the Board of Directors
equal to the product of (a) the total number of directors on the Board of
Directors and (b) the percentage that the number of shares of Common Stock
purchased by Sub bears to the number of shares of Common Stock outstanding, and
the Company shall, upon request by Parent, promptly increase the size of the
Board of Directors and/or exercise its reasonable best efforts to secure the
resignations of such number of directors as is necessary to enable Parent's
designees to be elected to the Board of Directors and shall cause Parent's
designees to be so elected. The Company shall


                                        - 30 -


<PAGE>
take, at its expense, all action required pursuant to Section 14(f) and Rule
14f-1 in order to fulfill its obligations under this Section 6.8 and shall
include in the Schedule 14D-9 or otherwise timely mail to its stockholders such
information with respect to the Company and its officers and directors as is
required by Section 14(f) and Rule 14f-1 in order to fulfill its obligations
under this Section 6.8.  Parent will supply to the Company in writing and be
solely responsible for any information with respect to itself and its nominees,
officers, directors and affiliates required by Section 14(f) and Rule 14f-1.

          (b)  Following the election of designees of Parent pursuant to this
Section 6.8, prior to the Effective Time, any amendment of this Agreement or the
Certificate of Incorporation or Bylaws of the Company, any termination of this
Agreement by the Company, any extension by the Company of the time for the
performance of any of the obligations or other acts of Parent or Sub or waiver
of any of the Company's rights or obligations hereunder shall require the
concurrence of a majority of the directors of the Company then in office who are
directors as of the date hereof or persons designated by such directors and
neither were designated by Parent nor are employees of the Company ("Continuing
Directors").  Prior to the Effective Time, the Company and Parent shall use all
reasonable efforts to ensure that the Company's Board of Directors at all times
includes at least three Continuing Directors.

     Section 6.9  Notification of Certain Matters.  The Company shall give
                  -------------------------------
prompt notice to Parent and Sub, and Parent and Sub shall give prompt notice to
the Company, of (i) the occurrence or nonoccurrence of any event the occurrence
or nonoccurrence of which would be likely to cause any representation or
warranty contained in this Agreement to be untrue or inaccurate in any material
respect at or prior to the Effective Time, or (ii) any material failure of the
Company, Parent or Sub, as the case may be, to comply with or satisfy any
covenant, condition or agreement to be complied with or satisfied by it
hereunder; provided, however, that the delivery of any notice pursuant to this
           --------  -------
Section 6.9 shall not cure such breach or non-compliance or limit or otherwise
affect the remedies available hereunder to the party receiving such notice.

     Section 6.10  Employment and Benefit Arrangements.  (a)  From and after the
                   -----------------------------------
Effective Time, Parent shall cause the Surviving Corporation to honor all
employment, severance, termination and retirement agreements to which the
Company is a party, as such agreements are in effect on the date hereof.

          (b)  For a one-year period following the Effective Time, Parent shall
cause the Surviving Corporation to provide those employees who are employees of
the Surviving Corporation at the Effective Time with benefits that are, in the
aggregate, no less favorable to such employees as are the benefits of the
Company available to such employees immediately prior to the Effective Time.

          (c)  The provisions of this Section 6.10 are not intended to create
rights of third party beneficiaries.


                                        - 31 -


<PAGE>


                                   ARTICLE VII

                              CONDITIONS PRECEDENT

     Section 7.1  Conditions to Each Party's Obligation to Effect the Merger. 
                  ----------------------------------------------------------
The respective obligations of each party to effect the Merger shall be subject
to the fulfillment at or prior to the Effective Time of the following
conditions:

          (a)  Stockholder Approval.  If approval of the Merger by the holders
               --------------------
     of the Common Stock is required by applicable law, the Merger shall have
     been approved by the requisite vote of such holders.

          (b)  No Order.  No court or other Governmental Entity shall have
               --------
     enacted, issued, promulgated, enforced or entered any law, rule,
     regulation, executive order, decree or injunction which prohibits or has
     the effect of prohibiting the consummation of the Merger; provided,
                                                               --------
     however, that, prior to invoking this provision, the Company, Parent and
     -------
     Sub shall use their reasonable best efforts (subject to the other terms and
     conditions of this Agreement) to have any such order, decree or injunction
     vacated.

                                  ARTICLE VIII

                        TERMINATION, AMENDMENT AND WAIVER

     Section 8.1  Termination.  This Agreement may be terminated at any time
                  -----------
prior to the Effective Time, whether before or after any approval by the
stockholders of the Company:

          (a)  by mutual written consent of Parent and the Company;

          (b)  by the Company if:

               (i)  the Offer has not been timely commenced (except as a result
          of actions or omissions by the Company) in accordance with Section
          1.1(a); or

               
              (ii)  there is an Acquisition Proposal which the Board of
          Directors of the Company in good faith determines represents a
          financially superior transaction for the stockholders of the Company
          as compared to the Offer and the Merger, and the Board of Directors of
          the Company determines, after consultation with Company Counsel, that
          failure to terminate this Agreement would be inconsistent with the
          compliance by the Board of Directors with its fiduciary duties to
          stockholders imposed by law; provided, however, that the right to
                                       --------  -------
          terminate this Agreement pursuant to this clause shall not be
          available (x) if the Company has breached in any material respect its
          obligations under Section 5.2, or (y) if, prior to or concurrently
          with any purported termination pursuant to this clause, the Company
          shall not have paid the fees and expenses contemplated by Section
          6.3(b); or


                                        - 32 -


<PAGE>

               
             (iii)  any representation or warranty of Parent or Sub shall not
          have been true and correct in all material respects when made or shall
          have ceased at any later date to be true and correct in all material
          respects as if made at such later date; or

               
              (iv)  Parent or Sub fails to comply in any material respect with
          any of its material obligations or covenants contained herein,
          including the obligation of Sub to purchase shares of Common Stock
          pursuant to the Offer; 

          (c)  by Parent if:

               (i)  the Board of Directors of the Company shall have failed to
          recommend, or shall have withdrawn, modified or amended in any
          material respect its approval or recommendations of the Offer or the
          Merger or shall have resolved to do any of the foregoing; or

               (ii) any representation or warranty of the Company shall not have
          been true and correct in all material respects when made or shall have
          ceased at any later date to be true and correct in all material
          respects as if made at such later date; provided, however, that the
                                                  --------  -------
          right to terminate this Agreement pursuant to this clause shall not be
          available to Parent if Sub or any affiliate of Sub shall acquire
          shares of Common Stock pursuant to the Offer; or 

               (iii)     the Company shall have failed to comply in any material
          respect with any of its material obligations or covenants contained
          herein; provided, however, that the right to terminate this Agreement
                  --------  -------
          pursuant to this clause shall not be available to Parent if Sub or any
          affiliate of Sub shall acquire shares of Common Stock pursuant to the
          Offer;

          (d)  by either Parent or the Company if:

               (i)  the Merger has not been effected on or prior to the close of
          business on April 30, 1996; provided, however, that the right to
                                      --------  -------
          terminate this Agreement pursuant to this clause shall not be
          available (x) to Parent, if Sub or any affiliate of Sub acquires
          Shares pursuant to the Offer, or (y) to any party whose failure to
          fulfill any obligation of this Agreement has been the cause of, or
          resulted in, the failure of the Merger to have occurred on or prior to
          the aforesaid date; or

               
              (ii)  any court of competent jurisdiction or any governmental,
          administrative or regulatory authority, agency or body shall have
          issued an order, decree or ruling or taken any other action
          permanently enjoining, restraining or otherwise prohibiting the
          transactions contemplated by this Agreement and such order, decree,
          ruling or other action shall have become final and nonappealable; or


                                         - 33 -


<PAGE>

               
             (iii)  upon a vote at a duly held meeting or upon any adjournment
          thereof, the stockholders of the Company shall have failed to give any
          approval required by applicable law; or

               
              (iv)  either (x) as the result of the failure of the Minimum
          Condition or any of the other conditions set forth in Exhibit A
          hereto, the Offer shall have terminated or expired in accordance with
          its terms without Sub having purchased any shares of Common Stock
          pursuant to the Offer, or (y) the Offer shall not have been
          consummated on or before February 15, 1996; provided, however, that
                                                      --------  -------
          the right to terminate this Agreement pursuant to this clause shall
          not be available to any party whose failure to fulfill any of its
          obligations under this Agreement results in the failure of any such
          condition.

     Section 8.2  Effect of Termination.  In the event of termination of this
                  ---------------------
Agreement by either Parent or the Company, as provided in Section 8.1, this
Agreement shall forthwith become void and there shall be no liability hereunder
on the part of the Company, Parent or Sub or their respective officers or
directors (except for Section 6.3, which shall survive the termination);
provided, however, that nothing contained in this Section 8.2 shall relieve any
- --------  -------
party hereto from any liability for any willful and material breach of this
Agreement.

     Section 8.3  Amendment.  This Agreement may be amended by the parties
                  ---------
hereto, by or pursuant to action taken by their respective Boards of Directors,
at any time before or after any approval of the Merger by the stockholders of
the Company but, after the purchase of shares of Common Stock pursuant to the
Offer, no amendment shall be made which decreases the Merger Consideration or
which in any way materially adversely affects the rights of such stockholders,
without the further approval of such stockholders. This Agreement may not be
amended except by an instrument in writing signed on behalf of each of the
parties hereto.

     Section 8.4  Waiver.  At any time prior to the Effective Time, the parties
                  ------
hereto may (i) extend the time for the performance of any of the obligations or
other acts of the other parties hereto, (ii) waive any inaccuracies in the
representations and warranties contained herein or in any document delivered
pursuant hereto, or (iii) waive compliance with any of the agreements or
conditions contained herein which may legally be waived. Any agreement on the
part of a party hereto to any such extension or waiver shall be valid only if
set forth in an instrument in writing signed on behalf of such party.

                                   ARTICLE IX

                               GENERAL PROVISIONS
 
     Section 9.1  Non-Survival of Representations and Warranties.  None of the
                  ----------------------------------------------
representations and warranties in this Agreement or in any instrument delivered
pursuant to this Agreement shall survive the termination of this Agreement in
accordance with Article VIII or the Effective Time; provided, however, that
                                                    --------  -------
termination of this Agreement shall not


                                        - 34 -


<PAGE>



relieve any party hereto from any liability for any willful and material breach
by such party of any such representations or warranties.

     Section 9.2  Notices.  All notices and other communications hereunder shall
                  -------
be in writing and shall be deemed given if delivered personally, sent by
overnight courier or telecopied (with a confirmatory copy sent by overnight
courier) to the parties at the following addresses (or at such other address for
a party as shall be specified by like notice):

          (a)  if to Parent or Sub, to:

               Tyco International Ltd.
               One Tyco Park
               Exeter, New Hampshire  03833
               Attn:  General Counsel
               Fax:  (603) 778-7700
               Conf: (603) 778-9700

               with a copy to:

               Kramer, Levin, Naftalis, Nessen,
                 Kamin & Frankel
               919 Third Avenue
               New York, New York  10022
               Attn:  Joshua M. Berman, Esq.
               Fax:  (212) 715-8000
               Conf: (212) 715-9100

          (b)  if to the Company to:

               The Earth Technology Corporation (USA) 
               100 West Broadway
               Long Beach, California  90802
               Attn:  General Counsel
               Fax:  (310) 495-2825
               Conf:  (310) 495-4449

               with a copy to:

               Skadden, Arps, Slate, Meagher & Flom
               300 South Grand Avenue
               Los Angeles, California  90071
               Attn:  Joseph J. Giunta, Esq.
               Fax:  (213) 687-5600
               Conf: (213) 687-5000


                                        - 35 -


<PAGE>

     Section 9.3  Interpretation.  When a reference is made in this Agreement to
                  --------------
a Section, such reference shall be to a Section of this Agreement unless
otherwise indicated. The table of contents and headings contained in this
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement. Whenever the words "include,"
"includes" or "including" are used in this Agreement, they shall be deemed to be
followed by the words "without limitation." As used in this Agreement, (i)
"business day" shall have the meaning ascribed thereto in Rule 14d-1(c)(6) under
the Exchange Act, and (ii) "subsidiary" shall have the meaning ascribed thereto
in Rule 12b-2 under the Exchange Act.

     Section 9.4  Counterparts.  This Agreement may be executed in counterparts,
                  ------------
each such counterpart being deemed to be an original instrument and all of which
shall be considered one and the same agreement and shall become effective when
one or more counterparts have been signed by each of the parties and delivered
to the other parties.

     Section 9.5  Entire Agreement; No Third-Party Beneficiaries.  This
                  ----------------------------------------------
Agreement, including the documents and instruments referred to herein, (a)
constitutes the entire agreement and supersedes all prior agreements and
understandings, both written and oral, among the parties with respect to the
subject matter hereof, and (b) except for the provisions of Section 6.7 is not
intended to confer upon any person other than the parties any rights or remedies
hereunder.

     Section 9.6  Governing Law.  This Agreement shall be governed by, and
                  -------------
construed in accordance with, the laws of the State of Delaware, regardless of
the laws that might otherwise govern under applicable principles of conflicts of
laws thereof.

     Section 9.7  Assignment.  Neither this Agreement nor any of the rights,
                  ----------
interests or obligations hereunder shall be assigned by any of the parties
without the prior written consent of the other parties, except that Sub may
assign, in its sole discretion, any of or all its rights, interests and
obligations under this Agreement to Parent or to any direct or indirect wholly
owned subsidiary of Parent, but no such assignment shall relieve Sub of any of
its obligations hereunder.  Subject to the preceding sentence, this Agreement
shall be binding upon, inure to the benefit of, and be enforceable by, the
parties and their respective successors and assigns.

     Section 9.8  Severability.  If any term or other provision of this
                  ------------
Agreement is invalid, illegal or incapable of being enforced by any rule of law,
or public policy, all other conditions and provisions of this Agreement shall
nevertheless remain in full force and effect so long as the economic or legal
substance of the transactions contemplated hereby are not affected in any manner
materially adverse to any party.

     Section 9.9  Enforcement of this Agreement; Attorneys Fees.  (a)  The
                  ---------------------------------------------
parties agree that irreparable damage would occur in the event that any of the
provisions of this Agreement were not performed in accordance with their
specific terms or were otherwise breached. It is accordingly agreed that the
parties shall be entitled to an injunction or injunctions to prevent breaches of
this Agreement and to enforce specifically the terms and


                                        - 36 -


<PAGE>



provisions hereof in any court of the United States or any state having
jurisdiction, this being in addition to any other remedy to which they are
entitled at law or in equity.

          (b)  The prevailing party in any judicial action shall be entitled to
receive from the other party reimbursement for the prevailing party's reasonable
attorneys' fees and disbursements, and court costs.  The provisions of this
Section 9.9(b) shall survive the termination of this Agreement in accordance
with Article VIII.


                            [SIGNATURE PAGE FOLLOWS]


                                        - 37 -


<PAGE>



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


                              TYCO INTERNATIONAL LTD.


                              By:______________________________
                                   Name:
                                   Title:



                              T1 ACQUISITION CORP.


                              By:______________________________
                                   Name:
                                   Title:


                              THE RHEA  CORPORATION 


                              By:______________________________
                                   Name:
                                   Title:


                                        - 38 -

<PAGE>



                                    EXHIBIT A

                             CONDITIONS OF THE OFFER

     Notwithstanding any other term of the Offer or this Agreement, Sub shall
not be required to accept for payment or pay for, subject to any applicable
rules and regulations of the SEC, including Rule 14e-1(c) of the Exchange Act,
any shares of Common Stock not theretofore accepted for payment or paid for and
may terminate or amend the Offer as to such shares of Common Stock, unless (i)
there shall have been validly tendered and not withdrawn prior to the expiration
of the Offer that number of shares of Common Stock which would represent at
least a majority of the outstanding shares of Common Stock on a fully diluted
basis (the "Minimum Condition"), and (ii) any waiting period under the HSR Act
applicable to the purchase of shares of Common Stock pursuant to the Offer shall
have expired or been terminated.  Furthermore, notwithstanding any other term of
the Offer or this Agreement, Sub shall not be required to accept for payment or,
subject as aforesaid, to pay for any shares of Common Stock not theretofore
accepted for payment or paid for, and may terminate or amend the Offer if at any
time on or after the date of this Agreement and before the acceptance of such
shares of Common Stock for payment or the payment therefor, any of the following
conditions exist or shall occur and remain in effect:

          (a)  there shall have been instituted, pending or threatened any
     action or proceeding by any court or other Governmental Entity, which (i)
     seeks to challenge the acquisition by Parent or Sub (or any of its
     affiliates) of shares of Common Stock pursuant to the Offer, restrain,
     prohibit or delay the making or consummation of the Offer or the Merger, or
     obtain damages in connection therewith in an amount which would reasonably
     be expected to have a Material Adverse Effect, (ii) seeks to make the
     purchase of or payment for some or all of the shares of Common Stock
     pursuant to the Offer or the Merger illegal, (iii) seeks to impose
     limitations on the ability of Parent (or any of its affiliates) effectively
     to acquire or hold, or to require Parent or the Company or any of their
     respective affiliates or subsidiaries to dispose of or hold separate, any
     portion of the assets or the business of Parent and its affiliates or any
     material portion of the assets or the business of the Company and its
     subsidiaries taken as a whole, (iv) seeks to impose material limitations on
     the ability of Parent (or its affiliates) to exercise full rights of
     ownership of the shares of Common Stock purchased by it, including, without
     limitation, the right to vote the shares purchased by it on all matters
     properly presented to the stockholders of the Company, or (v) seeks to
     restrict any future business activity by Parent (or any of its affiliates),
     including, without limitation, requiring the prior consent of any person or
     entity (including any Governmental Entity) to future transactions by Parent
     (or any of its affiliates); or

          (b)  there shall have been promulgated, enacted, entered, enforced or
     deemed applicable to the Offer or the Merger, by any statute, rule,
     regulation, judgment, decree, order or injunction, that is reasonably
     likely to directly or indirectly result in any of the consequences referred
     to in clauses (i) through (v) of subsection (a) above; or


































<PAGE>

          (c)  the Merger Agreement shall have been terminated in accordance
     with its terms; or

          (d)  any of the representations and warranties made by the Company in
     the Merger Agreement shall not have been true and correct in all material
     respects when made, or shall thereafter have ceased to be true and correct
     in all material respects as if made as of such later date (other than
     representations and warranties made as of a specified date), or the Company
     shall not in all material respects have performed in a timely manner each
     obligation and agreement and complied in a timely manner with each covenant
     to be performed and complied with by it under the Merger Agreement; or

          (e)  the Company's Board of Directors shall have modified or amended
     its recommendation of the Offer in any manner adverse to Parent or shall
     have withdrawn its recommendation of the Offer, or shall have recommended  
       acceptance of any Acquisition Proposal or shall have resolved to do any
     of the foregoing; or

          (f)  (i)  any corporation, entity or "group" (as defined in Section
     13(d)(3) of the Exchange Act) ("person"), other than Parent and Sub, shall
     have acquired beneficial ownership of more than 20% of the outstanding
     shares of Common Stock, or shall have been granted any options or rights,
     conditional or otherwise, to acquire a total of more than 20% of the
     outstanding shares of Common Stock; (ii) any new group shall have been
     formed which beneficially owns more than 20% of the outstanding shares of
     Common Stock; or (iii) any person (other than Parent or one or more of its
     affiliates) shall have entered into an agreement in principle or definitive
     agreement with the Company with respect to a tender or exchange offer for
     any shares of Common Stock or a merger, consolidation or other business
     combination with or involving the Company; or

          (g)  there shall have occurred (i) any general suspension of, or
     limitation on prices for, trading in securities on the New York Stock
     Exchange, the American Stock Exchange or The Nasdaq Stock Market, (ii) a
     declaration of a banking moratorium or any suspension of payments in
     respect of banks in the United States (whether or not mandatory), (iii) a
     commencement or escalation of a war, armed hostilities or other inter-
     national or national calamity directly involving the United States, (iv)
     any material limitation (whether or not mandatory) by any Governmental
     Entity on, or any other event that is reasonably likely materially and
     adversely to affect the extension of credit by banks or other lending
     institutions in the United States, (v) any decline in either the Dow Jones
     Industrial Average or the Standard and Poor's 500 Index by an amount in
     excess of 15% measured from the close of business on the date of this
     Agreement, or (vi) in the case of any of the foregoing existing at the time
     of the commencement of the Offer, a material acceleration or worsening
     thereof; or



                                        - 2 -



<PAGE>



          (h)  any change, development, effect or circumstance shall have
     occurred or be threatened that would reasonably be expected to have a
     Material Adverse Effect; or

          (i)  the Company shall commence a case under any chapter of Title XI
     of the United States Code or any similar law or regulation; or a petition
     under any chapter of Title XI of the United States Code or any similar law
     or regulation is filed against the Company which is not dismissed within 2
     business days.

     The foregoing conditions are for the sole benefit of Parent and Sub and may
be asserted by Parent or Sub regardless of the circumstances giving rise to any
such condition and may be waived by Parent or Sub, in whole or in part, at any
time and from time to time, in the sole discretion of Parent.  The failure by
Parent or Sub at any time to exercise any of the foregoing rights shall not be
deemed a waiver of any right, the waiver of such right with respect to any
particular facts or circumstances shall not be deemed a waiver with respect to
any other facts or circumstances, and each right shall be deemed an ongoing
right which may be asserted at any time and from time to time.

     Should the Offer be terminated pursuant to the foregoing provisions, all
tendered shares of Common Stock not theretofore accepted for payment shall
forthwith be returned by the Paying Agent to the tendering stockholders.



                                        - 3 -







                      [TYCO INTERNATIONAL LTD. LETTERHEAD]
                                   [LOGO]



                                                               Exhibit 2


Contact:                                               Contact:
Diane C. Creel                                         David Brownell
CEO, Chairwoman & President                            Vice President
The Earth Technology Corporation (USA)                 Tyco International Ltd.
(310) 495-4449                                         (603) 778-9700
                                             
                                                       FOR IMMEDIATE RELEASE


                       TYCO INTERNATIONAL TO ACQUIRE
                   THE EARTH TECHNOLOGY CORPORATION (USA)


     Exeter, New Hampshire and Long Beach, California, December 11, 1995--
Tyco International Ltd. (NYSE-TYC) and The Earth Technology Corporation
(USA) (OTC-ETCO) ("Earth Tech") jointly announced today that they have
entered into a definitive Merger Agreement under which Tyco would purchase,
for cash, all of the outstanding common stock of Earth Tech at a price of
$8 per share.

     Under the Agreement, a subsidiary of Tyco will shortly commence a
tender offer to purchase all of Earth Tech's 8,752,000 shares of common
stock for $8 per share in cash, for a total of approximately $70 million. 
The tender offer will be followed by a merger in which each of the remaining
shares of Earth Tech will be exchanged for $8 in cash.

     The offer will be made pursuant to definite offering documents to be
filed with the Securities and Exchange Commission.  The offer is
conditioned on the tender of a majority of the outstanding shares of common
stock on a fully diluted basis, as well as certain other conditions.

     "Earth Tech is an excellent fit with Tyco's Flow Control segment,
particularly in our water works and waste water treatment businesses. 
Their expertise in the engineering and design of water/wastewater treatment
facilities, and environmental solutions will help expand our market
penetration in these areas," said L. Dennis Kozlowski, Tyco's Chairman and
Chief Executive Officer.  Mr. Kozlowski also noted that the acquisition
would provide a positive contribution to Tyco's earnings from the onset.


<PAGE>


     Diane C. Creel, CEO, Chairwoman and President of Earth Tech stated,
"we are delighted to become part of the Tyco family.  We believe that this
offer represents superior value for our shareholders and a tremendous
opportunity for continued growth of our company."

     Earth Tech, headquartered in Long Beach, California, has 40 offices
throughout North America.  Earth Tech reported sales of $178 million for the
last fiscal year ended August 25, 1995 with a long term backlog in excess
of $800 million. 

     Tyco is a worldwide manufacturer with strong leadership positions in
disposable medical products, packaging materials, flow control products,
electrical and electronic components and is the world's largest
manufacturer and installer of fire protection systems.  The Company
operates in more than 50 countries around the world and has revenues in
excess of $4.5 billion. 

                                    xxx






                                                                EXHIBIT 3

                                                               December 13, 1995
 
To Our Stockholders:
 
    On behalf of the Board of Directors of The Earth Technology Corporation
(USA), I am pleased to inform you that on December 8, 1995, the Company entered
into an Agreement and Plan of Merger with Tyco International Ltd., a
Massachusetts corporation and T1 Acquisition Corp. (the "Purchaser"), a Delaware
corporation and wholly owned subsidiary of Tyco. Pursuant to the Merger
Agreement, the Purchaser has today commenced a cash tender offer to purchase all
outstanding shares of common stock, par value $.10 per share, of the Company
(the "Shares")for $8.00 per Share. Under the Merger Agreement, the Offer will be
followed by a merger of the Purchaser with and into the Company pursuant to
which any remaining Shares will be converted into the right to receive $8.00 per
Share in cash, without interest. We believe that this offer represents superior
value for our stockholders and a tremendous opportunity for continued growth of
the Company.
 
    YOUR BOARD OF DIRECTORS HAS DETERMINED THAT THE OFFER AND THE MERGER ARE
FAIR TO, AND IN THE BEST INTERESTS OF, THE COMPANY AND ITS STOCKHOLDERS, HAS
APPROVED THE MERGER AGREEMENT, THE OFFER AND THE MERGER, AND RECOMMENDS THAT THE
COMPANY'S STOCKHOLDERS ACCEPT THE OFFER AND TENDER THEIR SHARES PURSUANT TO THE
OFFER.
 
    In arriving at its recommendation, the Board of Directors gave careful
consideration to the factors described in the attached
Recommendation/Solicitation Statement on Schedule 14D-9 that is being filed
today with the Securities and Exchange Commission, including the opinion of
Alex. Brown & Sons Incorporated, the Company's financial advisor, to the effect
that the consideration to be received by the stockholders pursuant to the Offer
and the Merger is fair to such holders from a financial point of view.
 
    In addition to the attached Schedule 14D-9, also enclosed is the Offer to
Purchase, dated December 13, 1995, of the Purchaser, together with related
materials including a Letter of Transmittal, to be used for tendering your
Shares. These documents set forth the terms and conditions of the Offer and the
Merger and provide instructions as to how to tender your Shares. I urge you to
read the enclosed material carefully.
 
                                      Sincerely,

                                      /s/ Diane C. Creel

                                      Diane C. Creel
                                      Chairwoman of the Board,
                                      Chief Executive Officer and President





                                                                EXHIBIT 4


ALEX, BROWN & SONS
     INCORPORATED

ESTABLISHED 1800   AMERICA'S OLDEST INVESTMENT BANKING FIRM
                                   REPLY TO: P.O. BOX 515
                                   BALTIMORE, MD 21203
MEMBERS:  NEW YORK STOCK EXCHANGE, INC AND OTHER LEADING
EXCHANGES


                                   December 8, 1995


THE EARTH TECHNOLOGY CORPORATION (USA)
100 West Broadway, Suite 5000
Long Beach, Ca 90802-75

Members of the Board:

     The Earth Technology Corporation (USA) ("Earth Tech" or the "Company"),
Tyco International Ltd. ("Buyer") and T1 Acquisition Corporation, a Delaware
Corporation and wholly-owned subsidiary of Buyer (the "Merger Sub"), have
entered into an Agreement of Merger dated as of December 7, 1995 (the
"Agreement").  Pursuant to the Agreement, the Merger Sub will commence a tender
offer to purchase all outstanding shares of the common stock, $.10 par value per
share (the "Common Stock"). of Earth Tech ar a price of $8.00 per share, net to
the seller in cash.  The Agreement also provides that following such tender
offer, Merger Sub will be merged with and into Earth Tech (the "Merger"), and
that each then outstanding share of common Stock, other than shares held
directly or indirectly by Buyer or the Company or as to which dissenters rights
have been perfected, will be converted into the right to receive $8.00 per share
in cash.  You have requested our opinion as to whether the consideration to be
received by the holders of the Common Stock pursuant to the Agreement is fair,
from a financial point of view, to such holders.

     Alex. Brown & Sons Incorporated ("Alex. Brown"), as a customary part of its
investment banking business, is engaged in the valuation of businesses and their
securities in connection with mergers and acquisitions, negotiated
underwritings, private placements and valuations for estate, corporate and other
purposes.  We have acted as financial advisor to the Board of Directors of Earth
Tech in connection with the transaction described above and will received a fee
for our services, a portion of which is contingent upon the purchase of a
majority of the Common Stock by Merger Sub.  Alex. Brown previously served as
financial advisor to the Board of Directors of the Company with respect to the
Company's acquisition of Summit Environmental Group, Inc.   Alex Brown regularly
publishes research reports regarding the environmental engineering and
consulting industry and the businesses and securities of publicly owned
companies in that industry.  In the ordinary course of business, we may actively
trade the securities of the Company for our own account and the account of our
customers and, accordingly. may at any time hold a long or short position in
securities of the Company.

     In connection with our opinion, we have reviewed certain publicly available
financial information concerning Earth Tech and Certain internal financial
analyses and other information furnished to us by Earth Tech.  We have also held
discussions with members of the senior




<PAGE>


management of Earth Tech regarding the business and prospects of the Company.
In addition, we have (i) reviewed the reported price and trading activity for
the Common Stock of Earth Tech, (ii) compared certain financial and stock market
information for Earth Tech with similar information for certain other
environmental engineering and consulting companies whose securities are publicly
traded, (iii) reviewed certain recent business combinations in the environmental
engineering and consulting industry and performed such other studies and
analyses and considered such other factors as we deemed appropriate.

     We have no independently verified the information described above and for
purposes of this opinion have assumed the accuracy, completeness and fairness
thereof.  With respect to information relating to the prospects of Earth Tech,
we have assumed that such information reflects the best currently available
estimates and judgments of management of Earth Tech as to the likely future
financial performance of Earth Tech.  In addition, we have not made an
independent evaluation or appraisal of the assets of Earth Tech, nor have we
been furnished with any such evaluation or appraisal.  Our opinion is based on
market, economic and other conditions as they exist and can be evaluated as of
the date of this letter.

     Our opinion expressed herein was prepared for the use of the Board of
Directors of Earth Tech and does not constitute a recommendation to the
Company's stockholders as to whether  they should tender Common Stock owned by
them.  We thereby consent, however, to the inclusion of this opinion as an
exhibit in any filing made with the Securities and Exchange Commission or in
materials required to distributed to shareholders of Earth Tech in connection
with the Merger.

Based upon and subject to the foregoing, it is our opinion that, as of the date
of this letter, the consideration to be received by the holders of the Common
Stock pursuant to the Offer and the Merger as contemplated in the Agreement is
fair, from a financial point of view, to such holders.

                                          Very truly yours,



                                          ALEX. BROWN & SONS INCORPORATED




                                          /s/ Steven J. Bottum
                                          -------------------------------
                                          Steven J. Bottum
                                          Managing Director








                                                                  Exhibit 5

                 AGGREGATED OPTION EXERCISES IN FISCAL 1994
                     AND FISCAL YEAR-END OPTION VALUES



          The following table provides information with respect to the
named Executive Officers of Earth Technology concerning the exercise of
stock options during the 1994 fiscal year and unexercised options held as
of the end of the fiscal year.

<TABLE><CAPTION>



                                      Number of Unexercised        Value of In-the-Money
                                        Options at 8/2/94               Options (1)     
                                      ----------------------------------------------------------
                               Shares
                              Acquired
                                 on           Value      Exercis-         Not                             Not
       Name                   Exercise      Realized       able         Exercis-       Exercis-        Exercisable
                                                                         able ($)      able ($)          ($)
- --------------------------------------------------------------------------------------------------------------------
<S>                           <C>           <C>          <C>            <C>            <C>             <C>
  Daniel C. Creel                -0-           -0-         15,000        43,000        67,500            22,500

  Richard R. Pannell             -0-           -0-         15,000        30,000        67,500            22,500

  Creighton K. Early             -0-           -0-         19,000        31,000        79,500            25,900

  Robert A. Colonna            12,000        75,000         3,000         8,000        13,500            22,500



(1) Based upon the closing price of Earth Technology's Common Stock on August 26, 1994 of $8.00.

</TABLE>




     Compensation of Directors

               Each director who is not an employee of Earth Technology 
     receives stock options in lieu of 100% of fees.  The number of options
     granted each quarter to any eligible director is equal to the
     quarterly director fee of $3,750 divided by 75% of the fair market
     value of Earth Technology Common Stock as of the last day of each
     fiscal quarter.  The option price for these grants is equal to 25% of
     the fair market value of the Earth Technology Common Stock as of the
     last day of Earth Technology's fiscal quarter.  Options are granted
     quarterly on the last day of Earth Technology's fiscal quarter.

               Options become exercisable on the first day of the calendar
     year following the date of grant, provided that any options will
     become immediately exercisable upon the termination of the service of
     the director holding the option.  Options terminate upon the
     expiration of ten years from the date of grant but are not otherwise
     subject to forfeiture.

     Employment Agreements

               Each named officer of Earth Technology, except Dr. Holbrook,
     has a written employment agreement with Earth Technology.  Diane C.
     Creel, Richard R. Pannell and Creighton K. Early have employment
     agreements with an indefinite term.  Earth Technology may terminate
     such agreements upon twelve months written notice:  the employee may
     terminate upon 30 days written notice.  Further, the agreements
     provide that Mrs. Creel shall hold the position of Chief Executive
     Officer, at a minimum annual salary of $195,000, Mr.

                                    121

<PAGE>



     Pannell shall hold the position of President - Consulting Operations
     at a minimum annual salary of $164,000, and Mr. Early shall hold the
     position of Chief Financial Officer at a minimum annual salary of
     $140,000.  The guaranteed minimum salaries are automatically revised
     upward upon the granting of a salary increase by the Board of
     Directors.  The employment agreement with Mr. Colonna also has an
     indefinite term.  Either party to the agreement must give twelve
     months written notice to terminate.  The agreement with Mr. Colonna
     provides that he shall hold the position of Senior Vice President with
     a guaranteed minimum annual salary of $140,000.

               Earth Technology and Ms. Creel have entered into an
     amendment to Ms. Creel's employment contract, which became effective
     upon the consummation of the May 1994 merger with Summit.  Under the
     terms of the amendment, the term of Ms. Creel's employment was
     extended until December 31, 1998, with an automatic one year extension
     commencing on that date and each subsequent December 31st, unless
     Earth Technology or Ms. Creel gives twelve months notice of non-
     extension prior to an extension date.  If Ms. Creel's employment is
     terminated by Earth Technology "without cause" or by Ms. Creel for
     "good reason" (each as defined in the employment agreement), Ms. Creel
     will continue to receive the annual salary and bonus otherwise payable
     to her under her employment agreement as if Ms. Creel continued to be
     employed for the longer of (i) the remaining term of the employment
     agreement or (ii) 18 months.  Ms. Creel will also be entitled to the
     continuation of fringe benefits for the remainder of her employment
     term.

               Ms. Creel and Messrs. Pannell and Early are entitled to
     certain severance benefits in the event Earth Technology either
     terminates their employment without proper cause and notice or
     materially breaches the terms of their agreements.  These benefits
     include lump sum payment of 12 months' salary (18 months' in the case
     of an intentional material breach), accumulated pro rata bonus and
     continuation of certain benefits for 12 months.  With regard to Mr.
     Colonna, if Earth Technology merges or consolidates with, or transfers
     substantially all of its assets to another corporation, and if his
     employment agreement is not assigned to the successor corporation,
     then he will be entitled to a lump sum payment of 12 months' salary
     and continuation of certain benefits.

     Compensation Committee Interlocks and Insider Participation

               The Compensation Committee is composed of Richard J.
     Heckmann, Chairman; James E. Clark; and Charles D. Applequist.  No
     member of the Compensation Committee is a former or current officer or
     employee of the Earth Technology.  At the Effective Time, Mr. Ward W.
     Johnson will be appointed to the Compensation Committee.  His
     appointment is a condition to HazWaste's obligations under the Merger
     Agreement.

     Board Report on Executive Compensation

               The Compensation Committee of the Earth Technology Board of
     Directors, which is comprised entirely of independent outside
     directors, is responsible for reviewing and approving Earth
     Technology's executive compensation policies and plans.  No member of
     the Compensation Committee is a former or current officer or employee
     of Earth Technology or any of its subsidiaries.  From time to time,
     the Compensation Committee retains the services

                                    122




                                                                  Exhibit 6

        AMENDMENT TO THE EARTH TECHNOLOGY CORPORATION (USA)
                      1987 STOCK OPTION PLAN

          The Board of Directors has adopted an amendment
("Amendment") to The Earth Technology Corporation (USA) 1987 Stock
Plan ("1987 Stock Option Plan" or "Plan"), which provides for an
increase in the total number of shares of Earth Technology Common
Stock subject to the Plan from 850,000 shares to 1,300,000 shares, of
which up to 450,000 such shares may be issued as restricted stock. 
The text of the Amendment is attached hereto as Annex F.  The terms of
the 1987 Stock Option Plan require stockholder approval of the
Amendment.

          The Board of Directors has adopted the Amendment as part of
its policy to further the long-term growth in earnings of Earth
Technology by providing incentives to those officers and other
employees who are or will be responsible for such growth; to
facilitate the ownership of Earth Technology Common Stock by such
officers and employees, thereby more closely identifying their
interests with those of Earth Technology's stockholders; and to assist
Earth Technology in attracting and retaining officers and other
employees with experience and ability.  Incentive stock plans such as
the 1987 Stock Option Plan are an important part of this policy, and
increasing the number of shares available for issuance under the plan
will provide Earth Technology with greater flexibility in carrying out
this policy.  The Board believes that the Amendment reflects the best
interests of Earth Technology and recommends its approval by
stockholders.

          The summary that follows is subject to the actual terms of
the Plan, which was originally adopted during the 1987 fiscal year, 
and amended (with stockholder approval) in 1991 and 1994.  A copy of the
Plan is on file with the Corporate Secretary of Earth Technology.

The Plan

          The Plan provides for the granting of non-qualified stock 
options ("NSOs"), performance stock options ("PSOs") and restricted
stock.  NSOs and PSOs are sometimes together referred to herein as
"options."  Unless the Plan is earlier terminated by the Board, no
option or restricted stock may be granted under the Plan after 1997.

           The Plan is not subject to any provisions of the Employee 
Retirement Income Security Act of 1974, as amended, nor is the Plan a
qualified plan within the meaning of Section 401(a) of the Internal
Revenue Code of 1986, as amended.

Plan Administration

          The Plan is administered by a committee of Earth
Technology's Board of Directors consisting solely of three or more
"outside," independent directors of Earth Technology.  Members of the
committee do not receive any remuneration from the Plan.  Committee
members may be removed by the Board.

                                    126



<PAGE>



Securities Subject to the Plan

          Following the Amendment, the Plan will cover 1,300,000 
shares of treasury or authorized but unissued shares of Earth Technology 
Common Stock, of which up to 450,000 such shares may be issued as 
restricted stock.

          The Plan provides that, in the event of changes in the Earth
Technology Common Stock by reason of a merger, reorganization,
consolidation, recapitalization, common stock dividend, stock split or
similar change, the committee will make appropriate adjustments in the
aggregate number of shares under the Plan, the number of shares
purchasable upon the exercise thereafter of any option previously
granted and in the purchase price to be paid or the number of shares
issuable pursuant to restricted stock awards.

Eligibility

          Options and restrict stock may be generated to eligible 
employees of Earth Technology or its subsidiaries as determined and
selected by the committee, provided, however, that PSOs may only be
granted pursuant to a management incentive plan, as described in the
section entitled "Exercise of Options."

Exercise of Options

          The purchase price of stock purchased pursuant to the
exercise of an NSO will be 100 percent of the fair market value of Earth
Technology Common Stock on the date the option is granted and may be
adjusted in accordance with the antidilution provisions described in
"Securities Subject to the Plan."  Upon the exercise of any option, the
purchase price must be fully paid in cash, in Earth Technology Common Stock
held for a minimum of 6 months, or a combination of both.

          PSOs may only be granted in lieu of cash or other taxable 
payments under a management incentive plan, and only if the total
discount (from fair market value) on the exercise price for all shares
subject to the PSO is less than or equal to the amount of such
foregone cash or other taxable payment.  PSOs are generally subject to
the same terms as NSOs, except that the exercise price of a PSO shall
be as determined by the committee, with a minimum exercise price equal
to the greater of 35% of the fair market value of the Earth Technology
Common Stock covered by the option on the date of grant, or $1.00.

          Options may be exercised in amounts determined by the
committee for up to ten years and one day after the grant date or for
such lesser period as the committee may determine.  An option shall
first become exercisable at such time as determined by the committee. 
Options that are not exercised during their terms will expire without
value.

          The section entitled "Death -- Termination of Employment --
Assignment" describes the provisions that relate to the exercise of an
option following termination of employment including death, disability
or retirement.

                                    127



<PAGE>





Restricted Stock Awards

      A restricted stock award is an award of common shares that 
may not be sold, assigned, transferred, pledged, hypothecated or
otherwise disposed of for some period of time after the date on which
the award is granted ("restricted period"), as determined by the
committee.  The committee may also impose such other restrictions and
conditions on a restricted stock award as it deems appropriate.

           During the restricted period, the employee will be entitled
to vote the awarded shares and to receive dividends.  If, during the
restricted period, the employee's employment terminates for any
reason, any shares remaining subject to restrictions will be forfeited
by the employee and transferred to Earth Technology, except that the
committee has the authority to waive any or all outstanding
restrictions prior to the end of the restricted period with respect to
certain types of termination of employment, and the authority to add
such new restrictions as it deems appropriate.  See the section
entitled "Death -- Termination of Employment -- Assignment."

Death -- Termination of Employment -- Assignment

          In the event of termination of employment by reason of 
Normal Retirement (as defined in the Plan), any outstanding NSOs and
PSOs shall become vested and immediately exercisable, the restricted
period on any restricted stock shall lapse, and any further
restrictions on NSOs, PSOs or restricted stock shall automatically
terminate.  NSOs and PSOs shall then be exercisable for a period of
three years, or until the term of the option expires, whichever period
is shorter.

          In the event of termination of employment by reason of Early
Retirement (as defined in the Plan), any NSO or PSO that is not then
exercisable by its terms, and any shares of restricted stock as to
which the restricted period has not expired, shall thereupon be
forfeited and returned to Earth Technology; provided, however, that
the committee, in its discretion, has the authority to waive any such
forfeiture and restrictions on options and restricted stock.  Any
outstanding options exercisable by their terms prior to the date of
Early Retirement, and any options as to which any forfeiture or
restrictions are waived, shall be exercisable for a period of three
years, or until the term of the option expires, whichever period is
shorter.

          In the event of termination of employment by reason of 
death or disability, any option otherwise exercisable at the date of
termination shall be exercisable for a period of one year, or until
the term of the option expires, whichever period is shorter.  The
restricted period as to shares of restricted stock will lapse as to a
pro rata portion of the shares subject to restriction, and all other
restricted stock shall forfeited, unless the committee exercises its
discretion to waive such forfeiture and restrictions.

           In the event of termination of employment for any other
reason, options otherwise exercisable at the date of termination shall be
exercisable for a period of three months, or until the term of the option
expires, whichever period is shorter.  Shares of restricted stock subject
to restriction on the date of termination will be forfeited, except that

                                    128



<PAGE>



the committee may, in its discretion, waive such forfeiture and
restrictions in the event of an involuntary termination of employment.

           Options are not assignable except by will, by the laws of
descent and distribution.

 Amendment; Termination

          The Board of Directors of Earth Technology may terminate or
amend the Plan at any time, except that stockholder approval is
required for any amendment to (i) materially increase the maximum
number of shares of stock which may be issued under the Plan (except
for adjustments as set forth in the Plan); (ii) change the provisions
as to the price of Options (except for adjustments as set forth in the
Plan), (iii) materially increase the cost of the Plan or materially
increase the benefits to participants; (iv) extend the period during
which awards of Options or Restricted Stock may be granted; (v) extend
the maximum period after the date of grant during which Options may be
exercised; or (vi) materially modify the eligibility requirements.

Payment of Taxes

          Earth Technology has the authority to withhold an amount of
Earth Technology Common Stock, or require participants to remit an
amount in cash, sufficiently to satisfy federal, state and local
withholding tax requirements to an any award made under the Plan or
any exercise of an option or termination of the restricted period on
restricted stock. 

Certain Federal Income Tax Effects

          The following discussion of certain relevant federal income
tax effects applicable to NSOs, PSOs and restricted stock granted
under the Plan is a summary only, and reference is made to the
Internal Revenue Code of 1986, as amended (the "Code"), for a complete
statement of all relevant federal tax provisions.  It is recommended
that holders of NSOS or PSOs consult their tax advisers before
exercise of any such option and before disposing of any shares of
common stock acquired upon the exercise thereof.

           Options.  In the case of an NSO or PSO, an employee
generally will not be taxed upon the grant of such an option.  Rather,
at the time of exercise of such option, the employee will recognize
ordinary income for federal income tax purposes in an amount equal to
the excess of the fair market value of the shares purchased over the
option price.  Earth Technology will generally be entitled to a tax
deduction at such time as and in the same amount that the employee
recognizes ordinary income.  Different rules may apply in the case of
an employee who is an "insider" for purposes of federal securities
laws.

          If shares acquired upon exercise of an option are later sold
or exchanged, then the difference between the sales price and the fair
market value of such stock on the date that ordinary income was recognized
with respect thereto will generally be taxable as long-term or short-term
capital gain or loss (if the stock is a capital asset to the employee)
depending upon whether the stock has been held for more than one year after
such date.

                                    129



<PAGE>



          According to a published ruling of the Internal Revenue 
Service, an employee who pays the option price upon exercise of an
NSO, in whole or in part, by delivering shares of Earth Technology's
Common Stock already owned by the employee will recognize no gain
or loss for federal income tax purposes on the shares surrendered, but
otherwise will be taxed according to the rules described above for
NSOs.  With respect to shares acquired upon exercise which are equal
in number to the shares surrendered, the basis of such shares will be
equal to the basis of the shares surrendered, and the holding period
of the shares acquired will include the holding period of the shares
surrendered.  The basis of additional shares received upon exercise
will be equal to the fair market value of such shares on the date
which governs the determination of the employee's ordinary income, and
the holding period for such additional shares will commence on such
date.

          Restricted Stock Awards.  In the case of a restricted stock
award, an employee generally will not be taxed upon the granted of
such an award, but, rather, the employee will recognize ordinary
income in an mount equal to the fair market value of Earth
Technology's Common Stock at the time the shares are no longer
subject to a substantial risk of forfeiture (as defined in the Code). 
Earth Technology will be entitled to a deduction at the time when, and
in the amount that, the employee recognizes ordinary income.  However,
an employee may elect (not later than 30 days after acquiring such
shares) to recognize ordinary income at the time the restricted shares
are awarded in an amount equal to their fair market value at that
time, notwithstanding the fact that such shares are subject to
restrictions and a substantial risk of forfeiture.  If such an
election is made, no additional taxable income will be recognized by
such employee at the time the restrictions lapse.  Earth Technology
will be entitled to a tax deduction at the time when, and to the
extend that, income is recognized by such employee.  However, if
shares in respect of which such election was made are later forfeited,
no tax deduction is allowable to the employee for the forfeited
shares, and Earth Technology will be deemed to recognize ordinary
income equal to the amount of the deduction allowed to Earth
Technology at the time of the election in respect of such forfeited
shares.

                                    130



<PAGE>



          The following table sets forth the number of unexercised
stock options and shares of invested restricted stock outstanding under the
1987 Stock Option Plan as of August 26, 1994.

Name                                    Options Outstanding
- ----                                    -------------------

Diane C. Creel                                   58,000
Richard R. Pannell                               45,000
Creighton K. Early                               50,000
Robert A. Colonna                                11,000
Elizabeth R. Holbrook                            15,000

All current executive officers
as a group (not limited to Named
Executive Officers)                             297,497

All current directors (who are
not executive officers) as a group                  -0-

All nominees for election as
a director                                       45,000

All associates of any of such
directors, executive officers
or nominees                                         -0-

All other persons who own 5%
or more of outstanding options                      -0-

All employees, including all current
officers, who are not executive
officers, as a group                            430,387

          The Board of Directors unanimously recommends that stockholders 
vote FOR approval and adoption of the Amendment to the 1987 Stock Option Plan.

                                    131







                                                                  Exhibit 7



            AMENDMENT TO THE EARTH TECHNOLOGY CORPORATION (USA)
                            DIRECTOR OPTION PLAN

               The Board of Directors has adopted an amendment
("Amendment") to The Earth Technology Corporation (USA) Director Option
Plan (the "Director Option Plan"), which provides for an increase in the
total number of shares of Earth Technology Common Stock subject to the
Director Option Plan from 100,000 shares to 200,000 shares.  The text of
the amendment to the Director Option Plan is attached hereto as Annex F. 
The terms of the Director Option Plan require stockholder approval of the
Amendment.

               The Board of Directors has adopted the Amendment as part of
its policy to attract and retain directors with experience and ability. 
Incentive stock option plans such as the Director Option Plan are an
important part of this policy, and increasing the number of shares
available for issuance under the plan will provide Earth Technology with
greater flexibility in carrying out this policy.  The Board believes that
the Amendment reflects the best interests of Earth Technology and
recommends its approval by stockholders.

               The summary that follows is subject to the actual terms of
the Director Option Plan, as amended.

The Director Option Plan


               The Director Option Plan provides for the granting of NSOs. 
Unless the Director Option Plan is earlier terminated by the Board, no
option may be granted under the Director Option Plan after January 1, 1999.

               The Director Option Plan is not subject to any provisions of
the Employee Retirement Income Security Act of 1974, as amended ("ERISA"),
nor is the Director Option Plan a qualified plan within the meaning of
Section 401(a) of the Code.

Director Option Plan Administration

               The Director Option Plan is administered by a committee
consisting of three or more persons appointed by Earth Technology's Board
of Directors.  The committee has the power to interpret the Director Option
Plan, and all determinations made by it shall be final and binding.

Securities Subject to the Director Option Plan

               Following the Amendment, the Director Option Plan will cover
200,000 shares of authorized but unissued shares of Earth Technology Common
Stock.

               The Director Option Plan provides that, in the event of
changes in the Earth Technology Common Stock by reason of a merger,
reorganization, consolidation, recapitalization, common stock dividend,
stock split or similar change, the committee will make appropriate
adjustments in the aggregate number of shares under the Director Option
Plan and in the number of shares and price per share of Earth Technology
Common Stock subject to outstanding options.


                                    132




<PAGE>



Eligibility

               Directors who are not employees of Earth Technology or any
of its subsidiaries are eligible to participate in the Director Option
Plan.

Option Grants

               Options are granted automatically each quarter to any
eligible director in lieu of 100 percent of the retainer fees earned by the
director.  The number of shares granted is calculated by dividing (A) the
amount of the quarterly retainer, by (B) 75 percent of the fair market
value of Earth Technology Common Stock on the date of grant.

Exercise of Options

               The purchase price of stock purchased pursuant to the
exercise of an NSO will be 25 percent of the fair market value of Earth
Technology Common Stock on the date the option is granted and may be
adjusted in accordance with the antidilution provisions described in
"Securities Subject to the Director Option Plan."  Upon the exercise of any
option, the purchase price must be fully paid in cash.

               Options become exercisable on the first day of the calendar
year following the date of grant, except that all options held by a
director shall become immediately exercisable upon termination for any
reason, including retirement, death or disability.  Options terminate upon
the expiration of 10 years from the date of grant.

Restrictions on Transfer and Assignment

               Options granted under the Director Option Plan may not be 
transferred or assigned otherwise than by will or the laws of descent and
distribution, or pursuant to a qualified domestic relations order as defined
in ERISA or the Code.

Amendment; Termination

               The Board of Directors of Earth Technology may terminate or
amend the Director Option Plan at any time, except that stockholder
approval is required for any amendment to (i) change the description of the
class of directors eligible to receive options, or (ii) materially increase
the benefits accruing to participants under the Director Option Plan.

Certain Federal Income Tax Effects

               The following discussion of certain relevant federal income
tax effects applicable to options granted under the Director Option Plan is a
summary only, and reference is made to the Code, for a complete statement
of all relevant federal tax provisions.  It is recommended that holders of
options consult their tax advisers at the time of grant, upon exercise of
any such option and before disposing of any shares of common stock acquired
upon the exercise thereof.



                                    133



<PAGE>



               A participant will not recognize income at the time of the
grant of an NSO.  Generally, upon exercise of the NSO, recognition of
income by the participant, and the corresponding deduction by Earth
Technology, should be postponed during the period ending on the earlier of
(i) the expiration of 6 months following the date of exercise, or (ii) the
first day on which the sale of the shares acquired upon exercise of the NSO
at a profit will not subject the person to suit under Section 16(b) of the
Exchange Act, unless an election is made under Section 83(b) of the Code. 
In the event that the recognition of income is so postponed, dividends and
other distributions paid to the participant during such period on the Earth
Technology Common Stock acquired pursuant to such NSO will be ordinary
income to the participant and a deductible expense for Earth Technology,
the participant will recognize ordinary income on the date of the
termination of such period equal to the amound by which the fiar market 
value of such Earth Technology Common Stock on such date exceeds the exercise 
price, and Earth Technology will then be entitled to a corresponding tax 
deduction.  In the event that an election is made under Section 83(b) with
respect to the shares of Earth Technology Common Stock acquired upon 
the exercise of the NSO, the participant will recognize income at the time of 
the exercise equal to the excess of the fair market value of the shares of 
Earth Technology Common Stock so acquired (taking into account in determining 
such fair market value only restrictions that by their terms will never lapse)
over the amount, if any, paid for such shares and Earth Technology will be 
entitled to a corresponding deduction.  No further income will be recognized 
by the participant and no further deduction will be recognized by Earth 
Technology upon the subsequent expiration of the Section 16(b) restrictions on 
such shares.

               Upon a subsequent sale of the shares of Earth Technology
Common Stock, the participant will recognize a capital gain or loss,
provided that such shares are held by the participant as capital assets,
and Earth Technology will realize no further deduction.

               The following table sets forth the number of unexercised
stock options outstanding under the Director Option Plan as of August 26,
1994.

          Name                               Options Outstanding
          ----                               -------------------

All current directors (who are                    25,632
not executive officers) as a group

               The Board of Directors unanimously recommends that
stockholders vote FOR approval and adoption of the amendment to the
Director Option Plan.



                                    134








                                                                  Exhibit 8


Richard H. Guilford: Executive Compensation

               Summary Compensation Table.  There is shown below
information concerning the annual and other compensation for services in
all capacities to HazWaste for the year ended December 30, 1994, for
Richard H. Guilford.

<TABLE><Capiton>
                                               Summary Compensation Table
                                               --------------------------


                                                   Annual Compensation
                                               --------------------------
                                                                               
                                                                                Other
Name and                                                                       Annual         All Other
Principal Position           Year            Salary           Bonus          Compensation    Compensation
                             ----            ------          ------          ------------    ------------
<S>                         <C>             <C>            <C>               <C>             <C>
Richard H.Guilford
   Chairman, Chief
   Executive Officer,
   President, and            1994            $165,395.00     $86,000.00(1)          (2)      $12,6614.00(3)
   Treasurer

</TABLE>


(1)  Does not include bonus award under HazWaste's annual performance bonus pool
     based on Hazwaste's profitability for the fiscal year ended December
     30, 1994, the amount of which is not calculable at this time.

(2)  The value of perquisites and other personal benefits did not exceed
     the lesser of $50,000 or 10% of the total of annual salary and bonus.

(3)  The amounts presented include the value of life insurance premiums
     ($10,100) paid and 401(k) contributions ($2,514) made by Hazwaste on
     behalf of Mr. Guilford.

               Stock Options.  Mr. Guilford was not awarded any stock
options during the year ended December 30, 1994, nor did he exercise any of
his existing options.   The following table sets forth information with
respect to unexercised options held by him at year end 1994:

                          Fiscal Year End Options
                          -----------------------


                                        Number of Unexercised Options
                                        at Fiscal Year End (12/30/94)
                                        -----------------------------

Name                               Exercisable              Unexercisable
- ----                               -----------              -------------
Richard H. Guilford,
  Chairman, Chief Executive            8,000                    2,000
  Officer, President and Treasurer


               Employment Agreement.  Mr. Guilford has a written
employment agreement with HazWaste.  The agreement covers a term of
employment beginning May 31, 1994 and ending December 31, 1996.  During
such period, Mr. Guilford's employment may be terminated by Hazwaste with
or without cause.  If his employment is terminated without cause, Mr.
Guilford is entitled to receive severance benefits of approximate $275,000. 
Pursuant to an agreement with Earth Technology, Mr. Guilford will terminate
his employment


                                    113



<PAGE>




at the Effective Time of the Merger and receive a severance payment of
approximately $275,000.  See "THE MERGER -- Interest of Certain Persons in
the Merger."

               Pursuant to his employment agreement, Mr. Guilford received
a special executive performance bonus on January 10, 1995.  This bonus in
the amount of $50,000 was paid by HazWaste to Mr. Guilford prior to the
consummation of the Merger and regardless of whether the Merger is
consummated.  The determination to pay special executive performance
bonuses was made by the Board of Directors of HazWaste with Mr. Guilford
abstaining as to the bonus award to him.  A total of $230,000 in special
executive performance bonuses was paid to certain HazWaste employees on
January 10, 1995.  For a discussion of post-merger treatment of Mr.
Guilford's employment agreement, see "THE MERGER AGREEMENT -
Representations and Warranties -- Treatment of Certain Employment
Agreements."

Ward W. Johnson: Director Compensation; Related Transaction

               Mr. Johnson for the year ended December 30, 1994 received
directors fees in the amount of $4,750.  In return for certain advisory
services, Mr. Johnson, separate and apart from his duties as a director,
provided advisory services related to HazWaste's truck and automobile
driver safety programs and related insurance costs, workmen's compensation
insurance renewals, transportation and disposal issues, and personnel
matters.

               Mr. Johnson loaned Environmental Technology of North
America, Inc., a wholly-owned subsidiary of HazWaste, $140,000.00 evidenced
by a promissory noted dated September 15, 1992.  The proceeds of such loan
were used to purchase certain heavy construction equipment, and the loan is
secured by such equipment.  Bearing interest at a rate of 12%, the loan is
payable in thirty-six (36) consecutive monthly installments of principal
and interest in the amount of $4,650.00.  During the fiscal year ended
December 30, 1994, payments totalling $55,800.00 were paid to Mr. Johnson,
including interest of $7,469.00

                                    114





                                                               Exhibit 9


tyco international ltd.


August 15, 1995


Earth Tech
100 West Broadway
Suite 5000
Long Beach, California  90802

Attn:  Diane Creel
       President and Chief Executive Officer

Dear Sirs:

     In connection with our possible interest in a transaction involving
the acquisition of Earth Tech (the "Company"), you are furnishing us or our
representatives with certain information which is either non-public,
confidential or proprietary in nature.  All information furnished to us or
our representatives by the Company or any of its employees,
representatives, agents or advisors (including attorneys, accountants,
financial and technical advisors) shall be considered confidential and
proprietary and, together with analyses, compilations, forecasts, studies
or other documents prepared by us, our agents, advisors (including
attorneys, accountants, financial and technical advisors), representatives
or employees which contain such information, is hereinafter referred to as
the "Information".  In consideration of the Company furnishing us with the
information, we agree that:

     1.   The Information will be kept confidential and shall not, without
the prior written consent of the Company, be disclosed by us, or by our
agents, representatives, advisors or employees, in any manner whatsoever,
in whole or in part, and shall not be used by us, our agents,
representatives, advisors or employees, other than to determine whether we
wish to enter into, or other than in connection with, the transaction
described above.  Moreover, we agree to reveal the Information only to our
agents, representatives, advisors and employees who need to know the
Information for the purpose of evaluating, or otherwise in connection with,
the transaction described above who shall agree to act in accordance with
the terms and conditions of this Agreement.

     2.   Without the prior written consent of the Company, except pursuant
to paragraph 5 hereof, we and our agents, representatives, advisors and
employees will not disclose to any person the fact that the Information has
been made available, that discussions or negotiations are taking place or
have taken place concerning a possible transaction involving the
acquisition of the Company by us or any of the terms, conditions, or other 


<PAGE>


Earth Tech
August 15, 1995
Page 2


facts with respect to any such possible transaction, including the status
thereof.

     3.   All copies of the Information, except for that portion of the
Information which consists of analyses, compilations, forecasts, studies or
other documents prepared by us, our agents, representatives, advisors or
employees, will be returned to the Company promptly upon its request.

     4.   The term Information shall not include such portions of the
Information which (i) are or become generally available to the public other
than as a result of a disclosure by us, our agents, representatives,
advisors or employees, or (ii) become available to us or to our agents,
representatives, advisors or employees on a non-confidential basis from a
source which was not then prohibited from disclosing such Information to us
by a legal, contractual or fiduciary obligation to the Company, or (iii)
which was in our possession, or in the possession of our agents,
representatives, advisors or employees, or otherwise available to us, or
our agents, representatives, advisors or employees, on a non-confidential
basis prior to its disclosure to us or one or more of our agents,
representatives, advisors or employees.

     5.   In the event that we or anyone to whom we transmit the
Information pursuant to this Agreement are requested or become legally
compelled to disclose any of the Information (whether by oral questions,
interrogatories, requests for Information or documents, subpoena, Civil
Investigatives Demand or similar process or otherwise), we will provide the
Company with prompt notice, to the extent practicable, so that the Company
may seek a protective order or other appropriate remedy and/or waive
compliance with the provisions of this Agreement.  In the event that such
protective order or other remedy is not obtained, the Company agrees that
such disclosure may be made without liability hereunder.  We will furnish
only that portion of the Information which we are, in the opinion of our
counsel or the counsel of our representative, legally required to disclose
and will use our best efforts to obtain reliable assurance that
confidential treatment will be accorded the Information.

     6.   Without our prior written consent, except pursuant to paragraph 5
hereof, you agree that the Company will not disclose to any person the fact
that discussions or negotiations are taking place or have taken place
concerning a possible transaction involving the acquisition of the Company
by us or any of the terms, conditions or other facts with respect to any
such possible transaction, including the status thereof.


<PAGE>


Earth Tech
August 15, 1995
Page 3


     7.   The confidentiality obligations created by this Agreement shall
terminate three years from the date hereof.

     8.   Any provision of this Agreement which is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof or affecting the validity or
enforceability of such provisions in any other jurisdiction.

     9.   This Agreement shall be governed by and construed in accordance
with the laws of the Commonwealth of Massachusetts without regard to
principles of conflicts of law.

                              Very truly yours,

                              TYCO INTERNATIONAL LTD.


                                   /s/ J. Brad McGee
                              By:  ---------------------
                                   J. Brad McGee

                              Title:  Vice President
                                      Specialty Products


Accepted and agreed
to as of the 29 day
of August, 1995.

EARTH TECH

     /s/ Diane Creel
By:
    -------------------------
     Diane Creel
     President and
     Chief Executive Officer






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