ENVIRONMENTAL TESTING TECHNOLOGIES  , INC.
                                      and
                         NORTH AMERICAN INSPECTION, INC.

                               MERGER AGREEMENT
      
This merger agreement is made as of April 4, 1995 by and among
Environmental Testing Technologies, Inc. ("ETT"), a Washington corporation
and North American Inspection, Inc. ("NAII"), a Pennsylvania Corporation and
Robert K. Shumway, Carl Dichler, and Don Shumway as individuals
("Investors").

     -- RECITALS --
       
A)      ETT and NAII are merging to position the combined new operating
        entity to provide more complete and locally focused engineering 
        and inspection services to the petrochemical industry.

B)      ETT is duly authorized to issue Common Stock in exchange for all
        issued and outstanding Common Stock of NAII.

C)      ETT is a publicly owned corporation with approximately 375
        shareholders and is subject to the Securities and Exchange rules and
        regulations.

D)      NAII is a privately owned corporation controlled by 
        Robert K. Shumway, an individual.

     THE PARTIES HEREBY AGREE AS FOLLOWS:

1.      Stock Exchange

1.1     ETT will issue 7,000,000 shares of Common Stock in exchange for all
        issued and outstanding shares of NAII.  ETT shares are issued subject 
        to SEC Section 144 rules and regulation and bear will legends 
        accordingly.

1.2     NAII's shareholders will receive ETT Common Stock for their shares as
        follows:  Robert K. Shumway =  5,000,000 shares; Carl Dichler 
        = 1,000,000 shares; Don Shumway = 1,000,000 shares.

1.3     Employee stock options aggregating 3,000,000 of Common Stock will
        be issued to Robert K. Shumway, Carl Dichler, and Don Shumway, these
        options are priced at $.50/share exercisable beginning June 1, 1996 and
        expiring May 31, 1999.  The options issued are 1,000,000 to Robert K.
        Shumway, 1,000,000 to Don Shumway, and 1,000,000 to Carl Dichler.

        The stock options terms and conditions may be modified by the Board
        of Directors.  
        
        These terms & condition adjustments possibility is under current review 
        and will be acted upon by the Board including the new Directors named 
        herein.

1.4     Closing

        The exchange of stock will take place automatically upon completion of
        the following events:
     
        a)      Receipt of a letter from Boston Financial and Equity Corporation
                or equivalent that financing is available to fund NAII's current
                operating needs.  This funding is expected to come from Tanktek,
                Inc.(Tanktek), a wholly owned subsidiary of ETT or another 
                equivalent ETT subsidiary..Plus.. 
     
        b)      ETT has replaced NAII's current financing arrangement with First
                Valley Bank on terms & conditions satisfactory to ETT.  NAII 
                will be satisfied as the current loan must be replaced in total.
 
1.5     ETT will place 7,000,000 shares of stock in Escrow as per 1.2
        designation and NAII will place 2800 shares per designation 3.12.  These
        shares will be released from escrow to the respected parties upon 
        letters from ETT acknowledging 1.4 (a) & 1.4 (b) having occurred.

        Should the joint venture agreement (item 1.6) be terminated for any
        reason, all shares of stock will be returned to their original owners in
        full.

1.6     Joint Venture Agreement

        a)      ETT will market NAII services exclusivity through its existing
                subsidiary, Tanktek, Inc. or equivalent.  NAII will cease to 
                market its services except as a subcontractor to Tanktek.  
                Tanktek agrees to subcontract all nondestructive examination 
                and related work exclusively to NAII.  Tanktek will
                continue to market for its own account API 653 & related 
                services.  These services may or may not be subcontracted to 
                NAII.

        b)      In the event of cancellation of this agreement caused by NAII's
                inability to perform its subcontract service obligations to 
                Tanktek, NAII agrees to pay Tanktek, Inc. or its assignee 
                $500,000.00 in cancellation penalties.  This penalty is 
                acknowledged as reasonable and equitable by both parties given
                the marketing effort required by Tanktek.  This penalty is 
                secured by a security interest in all assets of NAII as included
                by the Pennsylvania UCC filings. 
    
                This security interest protection shall terminate upon the 
                merger contemplated in the agreement.

2.      Representations and Warranties of ETT

        ETT hereby represents and warrants to the NAII shareholders, that:

2.1     Organization, Good Standing and Qualification.

        ETT is a corporation duly organized, validly existing and in good
        standing under the laws of the State of Washington and has all requisite
        corporate power and authority to carry on its current or contemplated 
        business.  The Company is duly qualified to transact business and is in 
        good standing in each jurisdiction in which the failure to so qualify 
        would have a material adverse effect on its business or properties.

2.2     Authorized Capital.  The number of shares of stock which the
        corporation is authorized to issue is One Hundred Two Million 
        (102,000,000);of which One Hundred Million (100,000,000 shares will be 
        Common Stock ("Common Stock") with no par value per share, and Two 
        Million (2,000,000) shares will be Preferred Stock ("Preferred Stock").

2.3     Preferred Stock.  The Preferred Stock of the corporation will be issued
        as Class A Preferred Stock and Class B Preferred Stock with each class 
        having the preferences, limitations and relative rights set forth below.

        2.3.1   Class A. Preferred Stock.  The corporation will issue up to
                200,000 of shares Preferred Stock which will be designated as 
                Class A Preferred Stock ("Class A Stock").  The Class A stock 
                will be issued at the direction of the Board of Directors of the
                corporation for such purposes as the Board of Directors 
                considers appropriate and shall have such voting powers,
                full or limited, and such designations, preferences and 
                relative, participating, optional or other special rights and 
                qualifications, limitations or restrictions as the Board may 
                establish prior to the issuance of such shares.

        2.3.2   Class B. Preferred Stock.  The corporation shall issue up to 1.8
                Million (1,800,000) shares of Preferred Stock which will be 
                designated as Class B Preferred Stock ("Class B Stock").  The 
                Class B Stock will be issued at the direction of the Board of 
                Directors, but will be issued only in connection with the 
                acquisition of existing companies or locations from which it can
                operate its business of nondestructive testing of hazardous 
                material tanks.  The Class B Stock shall have such voting 
                powers, full or limited, and such designations, preferences and 
                relative, participating, optional or other special rights and
                qualifications, limitations or restrictions as the Board my 
                establish prior to the issuance of such shares.

2.4     Subsidiaries.  ETT owns three operating subsidiaries (X-Ray, Inc.,
        Accu-Inspect, Inc., and TankTek, Inc.) and is the controlling 
        shareholder in a non-operating subsidiary (Nucell, Inc.).

2.5     Outstanding shares of Common and Preferred Stocks are disclosed in
        the exhibits attached, meaning the financial statements dated 5/31/94 
        and the 10-QSB statements dated 8/31/94.  There have been no material
        changes since 8/31/94 or 5/31/94 disclosures in outstanding stocks 
        (common and preferred).

2.6     Authorization.  All corporate action on the part of ETT, its officers,
        directors and shareholders necessary for the authorization, execution 
        and delivery of this Agreement and the other agreements and transactions
        contemplated herein, the performance of all obligations of the Company
        hereunder and thereunder and the authorization, issuance and delivery of
        the Common Stock being transferred hereunder have been taken or will be 
        taken prior to the Closing, and this Agreement and the other agreements
        contemplated herein constitute valid and legally binding obligations of 
        ETT, enforceable in accordance with it and their terms.

2.7     Valid Issuance of Common Stock.  The Common Stock, when issued,
        sold and delivered in accordance with the terms hereof for the 
        consideration expressed herein, will be duly and validly issued, fully 
        paid and nonassessable and free of any liens or encumbrances created by 
        the Company.

2.8     Governmental Consents.  No consent, approval, order or authorization
        of, or registration, qualification, designation, declaration or filing 
        with, any federal, regional, state or local governmental authority on 
        the part of ETT is required in connection with the consummation of the 
        transactions contemplated by this Agreement, except for filings, if any,
        required pursuant to applicable state securities laws, which filings 
        will be made within the required statutory period.

2.9     Litigation.  There is no material action, suit, claim, proceeding or
        investigation pending or currently threatened against the Company nor is
        the Company aware that there is any basis for the foregoing.  The 
        Company is not a party or subject to the provisions of any order, write,
        injunction, judgment or decree of any court or government agency or 
        instrumentality that could have a material adverse effect on its 
        business or properties.

2.10    Investment Intent.  NAII shareholders are acquiring shares of ETT
        Common to be issued to Shareholder pursuant to this Agreement 
        (the "shares") for investment for Shareholder's own account and not with
        a view to, or for resale in connection with, any distribution of the 
        Shares, nor with any present intention of distributing or selling the 
        Shares.  Shareholders are not a party to any contract, undertaking, 
        agreement, or arrangement with any person to sell, transfer, or grant 
        participation to any such person or any third party with respect to the 
        Shares.  No other person or entity not a signatory to this
        Agreement has a beneficial interest in or a right to acquire the 
        Shares or any portion thereof.

2.11    Agreements and Due Diligence; Disclosure.

        (a)     ETT has fully provided NAII and its shareholders and their 
                counsel true and complete copies of or access to all documents 
                and information requested and such other information that the 
                shareholders have requested in connection with their decision to
                merge into ETT.

        (b)     The Company has not (i) declared or paid any dividends, or 
                authorized or made any distribution upon or with respect to any 
                class or series of its capital stock, (ii) made any loans or 
                advances to any person, other than ordinary travel expenses in 
                connection with its business and reasonable moving
                allowances for its employees, (iii) sold, exchanged or otherwise
                disposed of any of its assets or rights, other than in the 
                ordinary course of business, (iv) redeemed or obligated itself 
                to redeem any of its capital stock.

        (c)     The Company is not a party to nor is it bound by any contract,
                agreement, instrument, decree or administrative order, or 
                subject to any restriction under its Articles of Incorporation 
                or Bylaws, which materially and adversely affects its business 
                as now conducted or as proposed to be conducted, its properties 
                or its financial condition.

2.12    Title to Property and Assets.  ETT owns its property and assets free and
        clear of all mortgages, liens, loans and encumbrances, except liens 
        which arise in the ordinary course of business and do not materially 
        impair ETT's ownership or use of such property or assets.  With respect 
        to the property and assets it leases, the Company is in compliance with 
        such leases in all material respects and holds a valid leasehold 
        interest free of any liens, claims or encumbrances.

2.13    Licenses.  ETT has all licenses and permits (federal, state, foreign and
        local) necessary to conduct its business, and such licenses and permits 
        are in full force and effect.  No violations are or have been recorded 
        in respect of such licenses or permits and no proceeding is pending or 
        threatened toward the revocation or limitation of any of such licenses 
        or permits.  The Company has complied with all laws, rules, regulations 
        and orders applicable to its business.

2.14    The Financial Statements dated 5/31/94 and 11/30/94 in the form of the
        11/30 10-Q are true and complete in all material respects.

2.15    Undisclosed Liabilities.  Except as and to the extent reflected or
        reserved against in the Statement of Financial Position, the Company did
        not have, as of such date, any material debts, liabilities or 
        obligations of any nature, whether accrued, absolute, contingent or 
        otherwise and whether due or to become due, including, without 
        limitation, liabilities or obligations on account of taxes or other 
        governmental charges or penalties, interest or fines thereon or in 
        respect thereof.  The Company does not know and does not have
        any reasonable grounds to know of any basis for any assertion against 
        the Company of any material debt, liability or obligation of any nature 
        or in any amount not fully reflected or reserved against in the 
        Statement of Financial Position.

2.16    Changes.  Since the date of the financial statements in 2.14 above, 
        there has not been:

        (a)     Any change in the condition (financial or other) or properties,
                assets, liabilities, business or general economic or market 
                conditions or prospects of the Company, except changes in the 
                ordinary course of business, none of which has been materially 
                adverse, and all of which in the aggregate have not been
                materially adverse, to ETT;

        (b)     Any damage, destruction or loss (whether or not covered by
                insurance) materially and adversely affecting the properties, 
                assets or business of ETT;

        (c)     Any material increase in the compensation or rate of
                compensation or commissions payable or to become payable by ETT 
                to any of its directors, officers salaried employees, sales 
                persons or agents, or any hiring of any employee at a salary in 
                excess of $75,000 per annum, or any material change in any then 
                existing bonus, profit-sharing, retirement or other similar
                plan, agreement or arrangement or any adoption of or entry into 
                of any new bonus, profit-sharing, group life or health 
                insurance, or other similar plan, agreement or arrangement;

        (d)     Any material change in the accounting methods or practices
                followed by ETT;

        (e)     Any material debt obligation or liability (whether absolute or
                contingent) incurred by ETT (whether or not presently 
                outstanding) except (i) current liabilities incurred, and 
                obligations under agreements entered into, in the ordinary 
                course of business and (ii) obligations or liabilities entered 
                into or incurred in connection  with the execution of this 
                Agreement;

        (f)     Any sales, lease, abandonment or other disposition by the
                Company of any real property or, other than in the ordinary 
                course of business, of any equipment or other operating 
                properties or any sale, assignment, transfer license or other 
                disposition by ETT of any Intellectual Property or other
                intangible asset; or

        (g)     Any labor trouble, strike or any other occurrence, event or
                condition of any similar character that materially and adversely
                affects or may materially and adversely affect the assets, 
                properties, business or prospects of
                ETT.

2.17    Taxes.  ETT has filed all tax returns (federal, state, foreign and 
        local) required to be filed by it, and, except as reflected on the 
        statement of Financial Position or Balance Sheet, all taxes shown to be 
        due and payable on such returns or on any assessments received by the 
        Company and all other taxes (federal, state, foreign and local) due and 
        payable by the Company on or before the date hereof have been paid.  
        There are no agreements, waivers or other arrangements providing for an 
        extension of time with respect to the assessment of any tax or 
        deficiency against the Company, nor are there any actions, suits,
        proceedings, investigations or claims now pending against the Company in
        respect of any tax or assessment, or, to the Company's knowledge, any 
        matters under discussion within any federal, state, foreign or local 
        authority relating to any taxes or assessments, or any claims for 
        additional taxes or assessments asserted by any such authority.  The 
        provisions made for taxes on the Statement of Financial Position, are 
        sufficient for the payment of all unpaid federal, state, foreign and 
        local taxes of ETT for all periods prior to such date.  ETT's subsidiary
        X-Ray, Inc. has been assessed $568,000 in taxes, interest and
        penalties.  This obligation is being contested by X-Ray, Inc. and X-Ray,
        Inc. believes it will prevail in its "Offer in Compromise" dated 3/9/95.

2.18    Labor Agreements and Actions.  ETT is not bound by or subject to any
        written or oral, express or implied, contract, commitment or arrangement
        with any employee or labor union, and no labor union has requested or, 
        to the knowledge of ETT, has sought to represent any of the employees,
        representatives or agents of ETT.

2.19    Brokers or Finders.  ETT has not incurred and will not incur, directly 
        or indirectly, any liability for brokers' or finders' fees, agents' 
        commissions or other similar charges in connection with this Agreement 
        or the transactions contemplated hereby.

2.20    Transactions with Principals.  No employee, shareholder, officer or
        director of the Company is indebted to the Company, nor is the Company
        indebted (or committed to make loans or extend or guarantee credit) to 
        any of them in any material aspect, except Boston Financial & Equity has
        a loan appliication pending which will require at least one personal 
        guarantee.  The Company previously has furnished the Investors a copy of
        each agreement, instrument or other writing constituting legal rights 
        and obligations to which both the Company and any founder, officer, 
        director or principal security holder or company or organization 
        directly or indirectly controlled by such persons are parties.

2.21    Insurance.  ETT has fire and casualty insurance policies, with extended
        coverage sufficient in amount to allow it to replace any of its 
        properties which may be damaged or destroyed.

2.22    Voting Agreement.  ETT has no obligation or commitment with respect
        to the election of any individual or individuals to the Board, and to 
        the best of ETT's knowledge, there is no voting agreement or other 
        agreement among its shareholders with respect to the election of any 
        individual or individuals to the Board.  Robert K. Shumway and Don 
        Shumway, and Carl Dichler are to become appointed members of the ETT 
        Board and Robert K. Shumway is to become President and Chief Operating 
        Officer of ETT and Carl Dichler is to become an ETT Executive Vice 
        President.   

2.23    Subsequent Event.  ETT in a prudent and business-like manner will
        immediately begin a search both to provide new borrowings to replace 
        First Valley Bank as soon as possible and new equity capital to continue
        the planned growth program.  Prior to the search, a forecast and a 
        budget must be prepared to support this effort.

3.      Representations and Warranties of NAII and its shareholders 
        ("Investors") NAII and its shareholders severally and jointly represent 
        and warrant that:           

3.1     Authorization.  All acts and conditions required by law to authorize the
        execution and consummation of this Agreement by each Investor have been
        duly performed and obtained, and this Agreement constitutes a valid and
        legally binding obligation of the Investors, enforceable in accordance 
        with its terms.  Each Investor has full power and authority to execute, 
        deliver and performed his, her or its obligations under this Agreement 
        and to own the ETT Common Stock.  The execution, delivery and 
        performance of this Agreement and the consummation of the transactions 
        contemplated hereby by each Investor do not violate any provision of, or
        constitute a material breach of or default under, any term, condition or
        provision of any agreement, indenture or other instrument to which the 
        Investor is a party, or by which the Investor or the Investor's 
        properties or assets are bound, or of any order, judgment or
        decree against or binding upon such Investor.

3.2     Purchase Entirely for Own Account.  This Agreement is made with the
        Investors in reliance upon each Investor's representation to ETT, which,
        by such Investor's execution of this Agreement, such Investor hereby 
        confirms, that the Common Stock to be received by the Investors will be 
        acquired for investment for such Investors own account and not with a 
        view to the distribution of any part thereof, and that such Investor has
        no present intention of selling, granting any participation in, or 
        otherwise distributing the same in a manner contrary to the Securities 
        Act of 1933, as amended (the "Act"), or applicable state securities 
        laws.

3.3     Due Diligence.  Each Investor severally represents and acknowledges
        that he or she has been solely responsible for his or her own "due
        diligence" investigation of ETT and its management and business, for his
        or her own analysis of the merits and risks of this investment, and for 
        his or her own analysis of the fairness and desirability of the terms of
        the investment; that in taking any action or performing any role 
        relative to the arranging of the proposed investment, the Investor has 
        acted solely in his or her own interest, and the Investor has not acted 
        as an agent, employee, partner or fiduciary of any other person or as an
        agent of ETT, or as an issuer, underwriter, broker, dealer or investment
        advisor relative to any security involved in this investment.  Each 
        Investor has been given the opportunity to ask questions of and receive 
        answers from ETT concerning the terms and conditions of the
        Common Stock exchange and other matters pertaining to this investment.  
        The foregoing statements, however, do not limit or modify the 
        representations and warranties of ETT made herein.

3.4     Investment Experience.  Each Investor is an investor in securities of
        companies and acknowledges that the Securities are a speculative risk.  
        Each Investor is able to find for him/ her, or itself in the 
        transactions contemplated by this Agreement, can bear the economic risk 
        of his, her or its investment (including possible complete loss of such 
        investment) for an indefinite period of time and has such knowledge and 
        experience in financial or business matters that such Investor is 
        capable of evaluating the merits and risks of the investment in the 
        Securities.  Each Investor understands that the Securities have
        not been registered under the Act, or under the securities laws of any
        jurisdiction, by reason of reliance upon certain exemptions, and that 
        the reliance of ETT on such exemptions is predicated upon the accuracy
        of the Investors' representations and warranties in this Section 3.  
        Each Investor severally represents that he, she or it is an "accredited 
        investor" as defined by the Securities and Exchange Commission.

3.5     Restricted Securities.  Each Investor understands that the Securities 
        are characterized as "restricted securities" under the federal 
        securities laws inasmuch as they are being acquired from the Company in 
        a transaction not involving a public offering and that under such laws 
        and applicable regulations such securities may be resold without 
        registration under the Act only in certain limited circumstances and in 
        accordance with the terms and conditions set forth in the legend 
        described in Section 3.6 below.  In this connection, each Investor
        represents severally that he, she or it is familiar with SEC Rule 144, 
        as presently  in effect, and understands the resale limitations imposed 
        thereby and by the Act.  Notwithstanding the provisions above, no 
        registration statement or opinion of counsel shall be necessary for a 
        transfer by an Investor to the estate of such Investor or the transfer 
        by gift, will or interstate succession of an Investor to his or her 
        spouse or lineal descendants or ancestors, if the transferee
        agrees in writing to be subject to the terms hereof to the same extent 
        as if he or she were the original Investor hereunder.

3.6     Legend.  It is understood that the certificates evidencing the 
        securities may bear the following legend:

        The securities evidenced by this certificate have not been registered
        under the securities act of 1933, as amended (the "Act"), or applicable 
        state law, and no interest therein may be sold, distributed, assigned, 
        offered, pledged or otherwise transferred unless (i) there is an 
        effective registration statement under the Act and applicable state 
        securities laws covering any such transaction involving said securities,
        (ii) this corporation receives an opinion of legal counsel for the 
        holder of these securities satisfactory to this corporation stating
        that such transaction is exempt from registration, or (iii) this 
        corporation otherwise satisfies itself that such transaction is exempt 
        from registration.  At any date beginning 3 years from the date of 
        closing, this legend will be cancelled, and a certificate free from such
        legend issued to the holder hereof upon compliance with the following 
        conditions:  (a) surrender of this certificate to this corporation in 
        the manner and at the place designated for cancellation, 
        (b) a representation by the holder that it has beneficially held the 
        securities evidenced by this certificate for not less than three years, 
        and that it is not, and has not within the preceding 90 days been, an 
        "affiliate" (as that term is defined for purposes of rule 144 under the 
        Act or any successor rule) of this corporation, and (c) an understanding
        that if at any time the holder shall again become an affiliate or 
        otherwise cease to enjoy free transferability of such 
        securities under rule 144 either by reason of change of circumstance or
        amendment of rule 144, it shall forthwith surrender any unlegended
        certificate(s) received by it in respect of the securities evidenced by 
        this certificate for imposition of any appropriate legend.

3.7     Residency.  For purposes of the application of any relevant state
        securities laws, the Investors are residents of the States of 
        Pennsylvania and Ohio. 

3.8     NAII's Plan of Reorganization has been confirmed by the Federal
        Bankruptcy Court.  There are no known debts incurred prior to the 
        closing that have not been disclosed or accounted for in the Plan of 
        Reorganization or in the financial statements dated 1/31/95.

3.9     Changes.  Since the date of the NAII financial statements (12/31/94)
        there have not been:

        (a)     Any change in the condition (financial or other) or properties,
                assets, liabilities, business or general economic or market 
                conditions or prospects of the Company, except changes in the 
                ordinary course of business, none of which has been materially 
                adverse, and all of which in the aggregate have not been 
                materially adverse, to NAII;

        (b)     Any damage, destruction or loss (whether or not covered by
                insurance) materially and adversely affecting the properties, 
                assets or business of NAII;

        (c)     Any material increase in the compensation or rate of
                compensation or commissions payable or to become payable by NAII
                to any of its directors, officers, salaried employees, sales 
                persons or agents, or any hiring of any employee at a salary in 
                excess of $60,000 per annum, or any material change in any then 
                existing bonus, profit-sharing, retirement or other similar
                plan, agreement or arrangement or any adoption of or entry into 
                of any new bonus, profit-sharing, group life or health 
                insurance, or other similar plan, agreement or arrangement;

        (d)     The compensation schedule for the officers, directors, and key
                management personnel are as follows:
          

                              Annual Salary      Other Compensations
-------------------------------------------------------------------------------
Robert K. Shumway             $90,000.00
Carl Dichler                  $75,000.00        Normal Company benefit program
Don Shumway                   $75,000.00        for employees applies to all
George Maitland               $75,000.00        personnel.
C. Rod Brashears              $75,000.00
-------------------------------------------------------------------------------
     
        (e)     Any material change in the accounting methods or practices
                followed by NAII;

        (f)     Any material debt obligation or liability (whether absolute or
                contingent) incurred by NAII (whether or not presently 
                outstanding) except (i) current liabilities incurred, and 
                obligations under agreements entered into, in the ordinary 
                course of business and (ii) obligations or liabilities entered 
                into or incurred in connection  with the execution of this 
                Agreement;

        (g)     Any sales, lease, abandonment or other disposition by the
                Company of any real property or, other than in the ordinary 
                course of business, of any equipment or other operating 
                properties or any sale, assignment, transfer license or other 
                disposition by NAII of any Intellectual Property or other
                intangible asset; or

        (h)     Any labor trouble, strike or any other occurrence, event or
                condition of any similar character that materially and adversely
                affects or may materially and adversely affect the assets, 
                properties, business or prospects of NAII.

3.10    All pre-petition debts to Carl Dichler or his Company and Don
        Shumway have been exchanged for shares of Common Stock of NAII prior
        to the date of closing.

3.11    The exhibit attached Schedule H is the complete and total agreement
        between NAII's principal lender and NAII.

3.12    Capitalization.  The authorized capital of NAII consists of 10,000
        shares of Common Stock of which 2,800 shares are issued and
        outstanding, fully paid and non-assessable.  There are no stock options,
        warrants or equivalent outstanding that could   change the future 
        ownership of NAII as of the date of closing.

        a)      Robert K. Shumway, Don Shumway, and Carl Dichler own all
                issued and outstanding shares in the amounts of 2,000 shares, 
                400 shares, and 400 shares respectively.

3.13    Tax Advice.  Investors are relying solely on the advice of their own
        tax advisor with respect to the tax treatment of this transaction and 
        specially is not relying on tax advice from ETT or its agents.

4.      Miscellaneous.

4.1     This agreement shall be governed and construed in accordance with the
        laws of the State of Washington.

4.2     The schedules and exhibits referred to in this agreement shall be the
        scheduled listed below:

        a)     NAII amended Plan of Reorganization dated: 1-24-95.
        b)     NAII financial statement dated: 12-31-94.
        c)     NAII list of equipment.
        d)     NAII lease.
        e)     ETT financial statements dated: 5/31/94.
        f)     ETT financial statements dated: 11/30/94.
        g)     ETT Confirmed Plan of Reorganization dated: 4/16/94.
        h)     NAII loan agreement with First Valley Bank.

4.3     This agreement is the entire agreement of the parties and supersedes any
        and all prior negotiations, correspondence, understandings and 
        agreements between the parties.

In witness thereof, the parties have executed this Agreement as of the date of
closing.

Environmental Testing 
Technologies, Inc. ("ETT")              by _________________________________
                                             George B. Maitland, its President



                                        by ____________________________________
                                             C. Rod Brashears, Vice President
                                                        and Director


North American 
Inspection, Inc. ("NAII")               by ____________________________________
                                              Robert K. Shumway, its President

                                        by ____________________________________
                                                         , its Secretary





North American Inspection, Inc. 
Shareholders ("Investors")              by ___________________________________
                                                     Robert K. Shumway

                                        by ____________________________________
                                                     Don B. Shumway

                                        by _____________________________________
                                                     Carl R. Dichler