NDE ENVIRONMENTAL CORP
PRE 14A, 1997-07-09
TESTING LABORATORIES
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                            SCHEDULE 14A INFORMATION
                    Proxy Statement Pursuant to Section 14(a)
                     of the Securities Exchange Act of 1934

Filed by the  Registrant  [ X ] 
Filed by a Party other than the  Registrant  [ ]
Check the  appropriate  box: 
[X]  Preliminary  Proxy  Statement 
[ ]  Definitive Proxy  Statement 
[ ]  Definitive  Additional  Materials 
[ ]  Soliciting  Material Pursuant to Section 240.14a-11(c)or Section 240.14a-12

                          NDE ENVIRONMENTAL CORPORATION
                   ------------------------------------------
                (Name of registrant as specified in its Charter)


                   ------------------------------------------
    (Name of Person(s) Filing Proxy Statement; if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):
[X]  No fee required.
[ ]  Fee computed on the table below per Exchange Act Rules 14a-6(i)(1) and 0-11

     1)   Title of each class of securities to which transaction applies:

          ------------------------------------------------------------------
     2)   Aggregate number of securities to which transaction applies:

          ------------------------------------------------------------------
     3)   Per unit price or other underlying  value of transaction  computed
          pursuant to Exchange Act Rule 0-11:

          ------------------------------------------------------------------
     4)   Proposed maximum aggregate value of transaction:

          ------------------------------------------------------------------
     5)   Total fee paid:

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

[ ]  Fee paid previously with preliminary materials.
[ ]  Check box if any part of the fee is offset as provided by Exchange Act
     Rule 0-11(a)(2) and identify the filing for which the offsetting fee was
     paid previously.  Identify the previous filing by registration statement
     number, or the Form or Schedule and the date of its filing.

     1)   Amount Previously Paid:

          ------------------------------------------------------------------
     2)   Form, Schedule or Registration Statement No.:

          ------------------------------------------------------------------
     3)   Filing Party:

          ------------------------------------------------------------------
     4)   Date Filed:

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



<PAGE>



                              [PRELIMINARY FILING]
                          NDE Environmental Corporation
                    8900 Shoal Creek Boulevard, Building 200
                               Austin, Texas 78758

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                          TO BE HELD ON AUGUST 14, 1997

         To the Stockholders of NDE Environmental Corporation:

     Notice is hereby given that the 1997 Annual  Meeting of  Stockholders  (the
"Annual  Meeting") of NDE Corporation,  a Delaware  corporation (the "Company"),
will be held at the Company's corporate headquarters located at 8900 Shoal Creek
Boulevard,  Building  200,  Austin,  Texas,  at 9:00 a.m.  local  time,  for the
following purposes:

          1. To consider and vote on the proposed  amendment to the  Certificate
     of   Incorporation   of  the  Company  to  change  the  Company's  name  to
     Tanknology-NDE International, Inc.;

          2. To consider and vote on the nominees for director of the Company;

          3. To  consider  and vote on a  proposal  to adopt  an  amendment  and
     restatement  to the Company's  1989 Stock Option Plan,  which would,  among
     other  things,  re-name the 1989 Stock  Option  Plan as the  Tanknology-NDE
     International, Inc. 1989 Long-Term Incentive Plan;

          4. To ratify the appointment of independent public accountants for the
     1997 fiscal year; and

          5. Such other  business as may properly come before the Annual Meeting
     or any adjournment or postponement thereof.

     Only  stockholders  of record at the close of business on July 11, 1997 are
entitled to notice of and to vote at the Annual  Meeting and any  adjournment or
postponement thereof.

     Stockholders are cordially  invited to attend the Annual Meeting in person.
Those who do not plan to attend and who wish their shares voted are requested to
sign, date and mail promptly the enclosed proxy,  for which a return envelope is
provided.

                                  FOR THE BOARD OF DIRECTORS,


                                   /S/ Jay Allen Chaffee
                                  _________________________________________
                                  Jay Allen Chaffee
                                  Chairman of the Board
Austin, Texas
July 24, 1997




<PAGE>



                              [PRELIMINARY FILING]
                          NDE Environmental Corporation
                    8900 Shoal Creek Boulevard, Building 200
                               Austin, Texas 78758


                                 PROXY STATEMENT
                                     ------

                                  July 24, 1997

General

     The accompanying  proxy is solicited on behalf of the Board of Directors of
NDE Environmental  Corporation,  a Delaware corporation (the "Company"), for use
at the Annual Meeting of  Stockholders of the Company (the "Meeting") to be held
at  9:00  a.m.  on  Thursday,  August  14,  1997,  at  the  Company's  corporate
headquarters located at 8900 Shoal Creek Boulevard, Building 200, Austin, Texas,
78758.

     Only  holders  of  record at the close of  business  on July 11,  1997 (the
"Record  Date") of shares of common stock of the Company,  par value $0.0001 per
share (the  "Common  Stock"),  will be  entitled  to vote at the  Meeting on all
matters  referred  to  below.  At the  close  of  business  on the  Record  Date
[15,978,610]  shares of Common  Stock were  outstanding  and entitled to vote. A
majority  of the shares of Common  Stock  outstanding  on the  Record  Date will
constitute a quorum of the holders of Common Stock.

     This Proxy Statement and accompanying  proxy will be mailed to stockholders
on or about July 24, 1997.

Vote Required; Abstentions and Non-Votes

     Six directors to serve as members of the Board of Directors will be elected
by a plurality of the votes cast by the holders of Common  Stock.  There will be
no  cumulative  voting for  directors.  Approval  of the  proposal to change the
Company's name to  Tanknology-NDE  International,  Inc. requires the affirmative
vote of a majority of the  outstanding  shares of Common Stock.  For all matters
except the election of directors and the proposal to change the Company's  name,
the  affirmative  vote of holders of a  majority  of the shares of Common  Stock
present in person or by proxy and entitled to vote on the matter is required.

     Abstentions  are treated as present and entitled to vote and, thus, will be
counted in determining  whether a quorum is present.  Abstentions  will have the
same effect as a vote against a matter,  except as to the election of directors,
as to which they will have no effect. A "broker  non-vote" is a vote withheld by
a broker on a particular  matter in accordance with stock exchange rules because
the broker has not received instructions from the customer for whose account the
shares are held. A broker  non-vote is counted for purposes of  determining  the
existence of a quorum, but will have no effect on the outcome of the vote on any
of the proposals.

Solicitation of Proxies; Expenses

     Solicitation  of proxies by mail is  expected  to commence on or about July
24, 1997, and the cost thereof will be borne by the Company. In addition to such
solicitation by mail,  certain of the directors,  officers and regular employees
of the Company may,  without extra  compensation,  solicit proxies by telephone,
telecopy or personal interview. Arrangements will be made with certain brokerage
houses,  custodians,  nominees  and  other  fiduciaries  for the  forwarding  of
solicitation  materials to the beneficial  owners of Common Stock held of record
by such persons, and such brokers, custodians,  nominees and fiduciaries will be
reimbursed by the Company for reasonable out-of-pocket expenses incurred by them
in connection therewith.

Revocability of Proxies

     Any person signing a proxy in the form  accompanying  this Proxy  Statement
has the power to revoke it prior to the Meeting or at the  Meeting  prior to the
vote pursuant to the proxy. A proxy may be revoked by a writing delivered to the
Company, signed by the person who signed the proxy and stating that the proxy is
revoked,  by a  subsequent  proxy  that is signed by the  person  who signed the
earlier proxy and is presented at the Meeting or by attending at the Meeting and
voting in person.  Please note, however, that if a stockholder's shares are held
of record by a broker, bank or other nominee and that stockholder wishes to vote

                                       -1-

<PAGE>



at the  Meeting,  the  stockholder  must bring to the  Meeting a letter from the
broker, bank or other nominee confirming that stockholder's beneficial ownership
of the shares.

PROPOSAL NO. 1 --   AMENDMENT  TO  CERTIFICATE  OF  INCORPORATION  TO CHANGE THE
                    COMPANY'S NAME TO TANKNOLOGY-NDE INTERNATIONAL, INC.

     The holders of Common  Stock will be asked to approve an  amendment  to the
Company's  Certificate  of  Incorporation  to change the name of the  Company to
"Tanknology-NDE International, Inc." If approved by the holders of a majority of
the outstanding  shares of Common Stock on the Record Date, the proposal will be
adopted.

     On  October  25,  1996,  the  Company   completed  the   acquisition   (the
"Acquisition")  of substantially  all of the operating assets and liabilities of
the  Tanknology  UST  Group  of  Tanknology  Environmental,  Inc.  ("TEI").  The
Tanknology  UST Group's  operations  were  principally  conducted  through three
subsidiaries of TEI: Tanknology Corporation  International  ("TCI"),  Tanknology
Canada (1988), Inc. and USTMAN Industries, Inc. The acquisition was accomplished
by means of the Company's purchase of all of the issued and outstanding  capital
stock of the subsidiaries.  Tanknology Environmental,  Inc. subsequently changes
its name to TEI, Inc.

     TCI was engaged in  substantially  the same  business as the Company in the
same markets and was the Company's  largest direct  domestic  competitor.  TCI's
revenues were significantly  larger than those of NDE Testing & Equipment,  Inc.
("NDE  Testing"),  the  Company's  primary  operating  subsidiary  prior  to the
acquisition of the Tanknology UST Group.  Immediately following the Acquisition,
the  Company  caused NDE Testing to merge with and into TCI,  and the  surviving
corporation changed its name to Tanknology/NDE Corporation.

     Given the scale of operations of former TCI as compared to NDE Testing, the
Company  believes  the  Tanknology  name is more  descriptive  of the  Company's
continuing  operations and is more familiar to the Company's  current  customers
and the underground  storage tank testing and monitoring  industry.  The Company
also  believes  the costs of the name change,  including  the  possibility  that
potential  investors may  erroneously  use TEI's ticker symbol (TANK) instead of
the Company's symbol (NDEC) to obtain stock quotes and other market  information
about the Company, are outweighed by the value of changing the Company's name.

              THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR APPROVAL
            OF THE PROPOSAL TO AMEND THE CERTIFICATE OF INCORPORATION
    TO CHANGE THE NAME OF THE COMPANY TO TANKNOLOGY-NDE INTERNATIONAL, INC.


PROPOSAL NO. 2 --    ELECTION OF DIRECTORS

     At the meeting,  the holders of the  Company's  Common Stock will elect six
directors to hold office until the next annual meeting of stockholders and until
their  respective  successors  have been  elected  and  qualified  or until such
director's earlier resignation or removal.

     Shares represented by the accompanying proxy will be voted for the election
of those nominees  recommended by the Board unless the proxy is marked in such a
manner  as to  withhold  authority  to  vote  or so as to  vote  for one or more
alternative candidates. If any nominee for any reason is unable to serve or will
not serve,  the  proxies may be voted for such  substitute  nominee as the proxy
holder  may  determine.  The  Company is not aware of any  nominee  who would be
unable or unwilling to serve as a director.

Nominees

     Unless contrary indications are set forth in the proxy, it is intended that
the person named in the proxy will vote all shares of Common  Stock  represented
by the  proxy  for the  election  of  Messrs.  Jay  Allen  Chaffee,  Charles  C.
McGettigan,  A. Daniel Sharplin,  Michael S. Taylor, Myron A. Wick, III and Mark
B. Bober as directors. Messrs. Chaffee,  McGettigan,  Sharplin, Taylor, Wick and
Bober are all  presently  members  of the  Board of  Directors  of the  Company.
Directors  of the  Company  are elected  annually  and hold  office  until their
successors  have been elected and  qualified  or their  earlier  resignation  or
removal.  Management  is not aware of any  circumstances  likely  to render  any
nominee unavailable for election. However, should any nominee become unavailable
for  election,  the Board of  Directors  of the  Company may  designate  another
nominee, in which case the person acting under duly executed proxies will vote


                                       -2-

<PAGE>



for the election of the replacement  nominee.  A stockholder  may, in the manner
set forth in the enclosed proxy card, instruct the proxy holder not to vote that
stockholder's shares for one or more of the named nominees.

     The Company's  bylaws  currently  provide for a Board of Directors of seven
persons.  Six persons  currently serve on the Board and are expected to continue
to serve until the annual meeting.  The proxies solicited hereby cannot be voted
for a number of persons  greater than the number of nominees  named  below.  The
Certificate of Incorporation of the Company, as amended to date, does not permit
cumulative  voting.  A plurality of the votes of the holders of the  outstanding
shares of Common Stock of the Company represented at a meeting at which a quorum
is present may elect directors.

     The  following  sets forth  information  concerning  the six  nominees  for
election as directors at the meeting,  including their position with the Company
and the business  experience during at least the past five years, and the age of
each nominee as of April 30, 1997.
<TABLE>
<CAPTION>

Name                            Age        Principal Occupation                   Director Since
- -------------------------       ---        ------------------------------------   --------------
<S>                             <C>        <C>                                    <C> 
Jay Allen Chaffee(1)(2)          45        Chairman of the Board                      1991

A. Daniel Sharplin               35        President and Chief Executive Officer      1996

Mark B. Bober(1)(2)(3)           36        Certified Public Accountant                1996

Charles C. McGettigan(3)         52        Investment Banking

Michael S. Taylor(3)             55        Investment Banking                         1992

Myron A. Wick, III(1)(2)         53        Investment Banking                         1991
<FN>
- ------------------
(1)  Member of Executive Committee
(2)  Member of Compensation Committee
(3)  Member of Audit Committee
</FN>
</TABLE>

     Each of the  directors  named  herein was  elected to be a director  at the
Company's  Annual  Meeting  of  Stockholders  held  on June 5,  1996,  with  the
exception  of Mark B.  Bober who was  elected to the Board of  Directors  by the
Board of Directors as of December 12, 1996.

     Jay Allen Chaffee was elected to the Company's  Board of Directors in April
1991 and has been the Chairman of the Board since  December  1994.  He served as
the Company's  President,  Chief Executive  Officer and Chief Financial  Officer
form May 1991  until June  1995.  Mr.  Chaffee  has  served as  President  and a
director of Bunker Hill  Associates,  Inc.  ("Bunker  Hill") since 1985,  and he
continues to serve in these capacities.  Mr. Chaffee received a Bachelor of Arts
from Franklin & Marshall  College in 1974 and a Juris Doctor from the University
of Tulsa, College of Law in 1978.

     A. Daniel  Sharplin has been the Company's  President  and Chief  Executive
Officer since June 1995. He became the Company's Vice President, Western Region,
in December  1991,  was  appointed  the Company's  Chief  Operating  Officer and
Secretary in July 1992 and was appointed  President in December  1994.  Prior to
joining  the  Company,  Mr.  Sharplin  functioned  as an  environmental  service
industry  consultant from April 1991 to December 1991. Mr.  Sharplin  received a
Masters of Business Administration from the University of Texas in 1987.

     Mark B. Bober is a partner in Bober,  Markey &  Company,  Certified  Public
Accountants,  a position he has held since August 1992.  From 1983 until 1992 he
held positions of progressive  responsibility with Price Waterhouse,  Cleveland.
Mr.  Markey  holds a Bachelor  of Science  degree from Miami  University  and is
Certified Public Accountant, State of Ohio.

     Charles  C.  McGettigan  was a  founding  partner  in 1991 and is a general
partner of Proactive Investment Managers,  L.P., which is the general partner of
Proactive Partners, L.P. ("Proactive"), a merchant banking fund investing in and
providing  financial  services to small public  companies.  Mr. McGettigan was a
co-founder of Corporate Finance,  of Hambrecht & Quist,  Incorporated.  Prior to
that, Mr.  McGettigan was a Senior Vice President of Dillon,  Read & Co. Inc. He
currently  serves on the Boards of Directors of Modtech,  Inc.,  Onsite  Energy,
Inc., PMR Corporation and Sonex Research, Inc.  Mr. McGettigan is a graduate of


                                       -3-

<PAGE>



of Georgetown University,  and he received a Masters of Business  Administration
in Finance from the Wharton School at the University of Pennsylvania.

     Michael S. Taylor has been a director of the  Company  since July 1992.  He
has been Associate Director of Investment Banking of Josephthal since June 1989.
From early 1980 until  joining  Josephthal,  he was President of Mostel & Taylor
Securities,  Inc., an NASD-member  investment banking and brokerage firm. He has
been  involved in the  securities  industry  since 1966,  when he joined  Lehman
Brothers  Inc. as an analyst.  He became a director of Simtek  Corporation  this
year. He attended Amherst College and Columbia University.

     Myron A. Wick,  III has been a director of the Company since November 1991.
Since  November 1988, he has been Managing  Director of McGettigan,  Wick & Co.,
Inc., an investment  banking firm in San Francisco  which he co- founded.  Since
May 1991, Mr. Wick has been a general partner of Proactive  Investment Managers,
L.P.,  which is the general  partner of Proactive.  From  September  1985 to May
1988, Mr. Wick was Chief Operating Officer of California Biotechnology,  Inc., a
publicly traded  biotechnology  firm. Mr. Wick is a director of Phoenix Network,
Inc., Sonex Research,  Inc. and Stat-Tech  International  Corporation.  Mr. Wick
received  a  Bachelor  of Arts from  Yale  University  in 1965 and a Masters  of
Business Administration from Harvard University in 1968.

                THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE
             ELECTION OF EACH OF THE FOREGOING NOMINEES AS DIRECTORS

Section 16(a) Beneficial Ownership Reporting Compliance

     Section  16(a) of the  Securities  Exchange  Act of 1934,  as amended  (the
"Exchange  Act"),  requires the  Company's  directors,  officers and  beneficial
owners of more than 10% of the  Common  Stock to file  with the  Securities  and
Exchange  Commission  (the "SEC"),  initial  reports of ownership and reports of
changes in ownership of Common Stock and other equity securities of the Company.
Officers,  directors and 10%  stockholders  are required by SEC  regulations  to
furnish the  Company  with  copies of all  Section  16(a)  forms they file.  The
Company believes that,  during the 1996 fiscal year, the filings required of its
officers, directors or greater than 10% beneficial owners were not timely filed.

Meetings of the Board of Director and Certain Committees

     During all of 1996,  Jay Allen  Chaffee,  A.  Daniel  Sharplin,  Charles C.
McGettigan,  Michael S. Taylor and Myron A. Wick,  III were members of the Board
of Directors. Effective December 12, 1996, Mark B. Bober was unanimously elected
to the Board by the foregoing directors.

     The Board of Directors met five times in 1996.  The standing  committees of
the Board include an Executive Committee,  an Audit Committee and a Compensation
Committee.  The Board does not have a nominating committee. The functions of the
nominating  committee  are  performed by the Board.  During 1995,  the Executive
Committee met three (3) times, the  Compensation  Committee met one (1) time and
the Audit Committee met one (1) time. All directors attended at least 75% of the
meetings held in 1996 of the Board of Directors and any committees on which they
served during their term of service as directors.

     During 1996, the members of the Executive  Committee were Jay Allen Chaffee
and Myron A. Wick, III. Mark B. Bober was elected as an additional member of the
Executive Committee effective December 12, 1996. Messrs. Bober, Chaffee and Wick
continue to be the members of the Executive  Committee.  The Executive Committee
has, in general,  the  authority to take  substantially  all actions that can be
taken by the Board of Directors as a whole.

     During  1996,  the members of the  Compensation  Committee  were Michael S.
Taylor and Myron A. Wick, III. Mark B. Bober was elected as an additional member
of the Compensation Committee effective December 12, 1996. Messrs. Bober, Taylor
and  Wick  continue  to be  the  members  of  the  Compensation  Committee.  The
Compensation Committee has the authority to determine the compensation and other
benefits  received by the Company's Chief  Executive  Officer and members of the
Company's senior management group.

     During 1996, the members of the Audit  Committee were Charles C. McGettigan
and Michael S. Taylor.  Mark B. Bober was elected as an additional member of the
Audit  Committee  effective  December 12, 1996.  Messrs.  Bober,  McGettigan and
Taylor  continue to be the members of the Audit  Committee.  The Audit Committee
reviews  with the  Company's outside  auditors the Company's financial reporting


                                       -4-

<PAGE>



systems and controls and meets with the outside  auditors  concerning  the scope
and terms of their engagement and the results of their audits.

Executive Officers

     Jay  Allen  Chaffee.  See  "Proposal  No. 2 --  Election  of  Directors  --
Nominees."

     A.  Daniel  Sharplin.  See  "Proposal  No. 2 -- Election  of  Directors  --
Nominees."

     H. Baxter Nairon,  age 37, was named  President,  Field Services,  in April
1996  and  is  the  President  of  the  Company's   subsidiary,   Tanknology/NDE
Corporation.  Prior to joining the Company,  from 1989 to 1996,  Mr.  Nairon was
employed by Booz-Allen & Hamilton, a global management consulting firm, where he
achieved the position of Principal,  specializing  in engagements  for large oil
companies.  He has received a Professional  Engineering  registration  and is 37
years old. He holds a Bachelor  of Science in  Mechanical  Engineering  from the
University  of Tennessee at Knoxville  and a Masters of Business  Administration
from the University of Texas.

     David G.  Osowski,  age 45, was named Vice  President,  Secretary and Chief
Financial  Officer in December  1996.  Prior to joining NDE, from May 1991 until
July 1996, Mr. Osowski served as Senior Vice President, Controller and Treasurer
for Summagraphics  Corporation.  Mr. Osowski received a Bachelor of Science from
the University of Bridgeport.

Certain Transactions

     During  the last  fiscal  year,  the  following  transactions  in excess of
$60,000 were entered into with related parties:  Banc One Capital Partners L.P.,
a lender to and warrant holder of the Company ("BOCP"),  purchased $8 million in
senior  subordinated  debt, earned $170,000 in fees related to the debt purchase
and was  reimbursed  $21,930  for due  diligence  and  travel  costs.  Proactive
Partners,  L.P., a major shareholder of the Company,  converted $825,000 of debt
and $28,103 of accrued interest into 6,600,000 shares of Common Stock. Lagunitas
Partners,  L.P., a major shareholder of the Company,  converted $175,000 of debt
and $7,779 of accrued  interest into 1,400,000 shares of Common Stock. Jay Allen
Chaffee, Chairman of the Board, is the president of Bunker Hill Associates, Inc.
During 1996, the Company paid $168,775 to Bunker Hill for services of Mr.
Chaffee and related expenses as described below.

     In connection with the Acquisition, the Company placed $8 million of senior
subordinated  debt with a 5-year  maturity  and  interest  at 13% per annum with
BOCP.  BOCP also  purchased  from the Company  warrants  to purchase  13,022,920
shares of Common Stock at an initial  exercise price of $0.325 per share subject
to  downward  adjustment  (but not less  than  $0.125  per  share)  based on the
Company's financial performance during the 12-month period prior to the exercise
of the warrants.  In connection  with the  Acquisition  and related  financings,
Proactive  Partners,  L.P. provided a $1 million standby commitment in the event
of a payment default by the Company under both the BOPC  subordinated  debt and,
together  with its  affiliate  Lagunitas  Partners  L.P.,  agreed to  convert $1
million of prior indebtedness and $35,882 of associated  accrued interest,  into
8,000,000 shares of the Company's Common Stock.

Employment Agreements

     In 1991,  the  Company  entered  into a service  contract  with Bunker Hill
Associates,  Inc.  to retain  the  services  of Mr.  Chaffee.  Mr.  Chaffee is a
principal of Bunker Hill, a management consulting firm based in Houston,  Texas.
Pursuant to the contract, Mr. Chaffee has agreed to serve the Company in various
capacities as an officer and director.  Effective  July 1995, the Company agreed
to pay for such services at the rate of $7,500 per month with  additional  stock
and cash bonus  consideration.  The contract can be  terminated  by either party
with one  month's  notice.  In 1996,  Bunker  Hill,  on behalf  of Mr.  Chaffee,
received $90,000 in consideration  of Mr.  Chaffee's  management  services as an
officer of the  Company.  In  addition,  $78,775 was remitted to Bunker Hill for
secretarial  support  and  reimbursement  of travel and  out-of-pocket  expenses
related to Mr. Chaffee's services.

Compensation of Directors

     The  Company  has agreed to pay or  reimburse  the travel  expenses  of its
directors   resulting  from  attendance  at  Board   meetings.   No  other  cash
compensation  was paid to, or on behalf of, board members,  in  consideration of
their services  provided as directors in 1996.  However,  certain directors were
provided  compensation  for other services  provided to the Company as described
above. Beginning  in 1997, the  Board of Directors has  agreed to pay Mr. Taylor


                                       -5-

<PAGE>



and Mr.  Bober a per meeting fee of $2,250 and to reimburse  travel  expenses of
all directors resulting from attendance at Board meetings.

                    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL
                              OWNERS AND MANAGEMENT

     The following  table sets forth certain  information  as to the  beneficial
ownership  of the  Company's  capital  stock,  as of May 30,  1997 by:  (a) each
stockholder known by the Company to be the beneficial owner of more than 5% of a
class of voting stock, (b) each director,  (c) each of the executive officers of
the Company named in the Summary  Compensation Table below and (d) all executive
officers and directors as a group.

                     Beneficial Ownership of Common Stock(1)

                                                    Number of     Percentage of
Beneficial Owner                                     Shares           Class
- -------------------------------------              ----------     -------------
Proactive Partners, L.P.(2)(3)(5)(6)               14,349,233         47.80%
50 Osgood Place, Penthouse
San Francisco, CA  94153

Lagunitas Partners, L.P.(2)(3)(5)(6)               14,319,556         47.71
50 Osgood Place, Penthouse
San Francisco, CA  94153

Banc One Capital Partners(4)                       13,022,920         43.39
150 East Gay Street
Columbus, OH  43215

Myron A. Wick, III(5)(6)                           10,614,595         35.36
c/o Proactive Partners
50 Osgood Place, Penthouse
San Francisco, CA  94133

Charles C. McGettigan(5)(6)                        10,614,595         35.36
c/o Proactive Partners
50 Osgood Place, Penthouse
San Francisco, CA  94133

A. Daniel Sharplin(7)                               1,016,959          3.39

Jay Allen Chaffee(8)                                  410,483          1.37

H. Baxter Nairon(9)                                   128,000           *

Mark B. Bober(10)                                          --           *

Michael S. Taylor(11)                                  17,333           *

All executive officers and directors               15,922,008         53.04

- ---------------------------
*        Less than 1% of the outstanding Common Stock

(1)  For the purposes of the above table and the following  notes, the shares of
     Common  Stock shown as  "beneficially  owned"  include all shares of Common
     Stock that the  "beneficial  owner" has the right to acquire within 60 days
     upon the conversion of other  securities,  upon the exercise of warrants or
     otherwise. In calculating the total number of shares of Common Stock deemed
     to be  outstanding  for the purpose of reflecting  the  beneficial  owner's
     percentage of the class,  the shares that other owners did not then own but
     had the right to acquire within 60 days or more are not included.

(2)  Includes  10,267,378  outstanding shares of Common Stock. Also includes (i)
     175,000,  105,874 and 50,000 shares reserved for issuance upon the exercise
     of warrants at prices of $0.375,  $0.15,  and  $0.125,  respectively;  (ii)
     3,721,304  shares  beneficially  owned  by  Lagunitas  Partners,  L.P.  and
     referred to in note (3) below;  (iii) 13,333 shares  beneficially  owned by
     Mr.  McGettigan  and  referred  to in note (5) below  and (v) 3,010  shares
     issuable upon the exercise of warrants at a price of $0.15 per share issued


                                       -6-

<PAGE>



     to McGettigan,  Wick & Co., Inc. and to Proactive Partners,  L.P.'s general
     partner, Proactive Investment Managers, L.P. See also note (7) below.

(3)  Includes  3,694,390  outstanding  shares of Common Stock. Also includes (i)
     26,914  shares of Common Stock  issuable upon the exercise of warrants at a
     price of $0.15 per share and (ii) 10,598,252 shares  beneficially  owned by
     Proactive Partners, L.P. and referred to in note (2) above.

(4)  Consists of warrants to purchase 13,022,920 shares of Common Stock.

(5)  Includes (i) 13,333  shares of Common Stock  issuable  upon the exercise of
     stock  options  granted to Mr. Wick under the  Company's  1989 Stock Option
     Plan and (ii) the shares beneficially owned by Proactive Partners, L.P. and
     referred to in note (2) above  (10,398,252).  Mr. Wick is a general partner
     of Proactive  Investment  Managers,  L.P., the general partner of Proactive
     Partners, L.P. Also includes 3,010 shares beneficially owned by McGettigan,
     Wick & Co. (Mr. Wick is a general  partner of  McGettigan,  Wick & Co.) but
     does not include an additional  26,667  shares  subject to options that are
     not yet exercisable.  Also does not include 184,410 shares owned by the NDE
     Environmental Corporation 401(K) plan of which Mr. Wick is a trustee.

(6)  Includes (i) 13,333 shares of Common  Stock  issuable  upon the exercise of
     stock options  granted to Mr.  McGettigan  under the  Company's  1989 Stock
     Option Plan and (ii) the shares  beneficially owned by Proactive  Partners,
     L.P. and referred to in note (2) above  (10,598,252).  Mr.  McGettigan is a
     general partner of Proactive Investment Managers, L.P., the general partner
     of Proactive  Partners,  L.P. Also includes 3,010 shares beneficially owned
     by  McGettigan,  Wick  &  Co.  (Mr.  McGettigan  is a  general  partner  of
     McGettigan,  Wick & Co.) but does not include an  additional  26,667 shares
     subject to options that are not yet exercisable.

(7)  Includes 513,932  outstanding  shares of Common Stock. Also includes 26,360
     shares  reserved  for  issuance  upon the exercise of warrants at prices of
     $7.50.  Also includes  476,667 shares reserved for issuance to Mr. Sharplin
     under  the  Company's  1989  Stock  Option  Plan but does  not  include  an
     additional  213,333 shares subject to options that are not yet exercisable.
     Also  does  not  include  184,410  shares  owned  by the NDE  Environmental
     Corporation 401(K) plan of which Mr. Sharplin is a trustee.

(8)  Includes 67,150  outstanding  shares of Common Stock. These shares are held
     in the name of Bunker Hill  Associates,  Inc., an affiliate of Mr. Chaffee.
     Also includes  343,333  shares subject to  exercisable  options  granted to
     Bunker Hill under the Company's 1989 Stock Option Plan but does not include
     146,667 shares subject to options that are not yet  exercisable.  Also does
     not  include  184,410  shares  owned by the NDE  Environmental  Corporation
     401(K) plan of which Mr. Chaffee is a trustee.

(9)  Consists of 128,000 shares issuable upon the exercise of options granted to
     Mr. Nairon under the Company's  1989 Stock Option Plan but does not include
     256,000 shares subject to options that are not yet unexercisable.

(10) Does not include  40,000  shares  subject to options  granted to Mr.  Bober
     under the Company's 1989 Stock Option Plan that are not yet unexercisable.

(11) Includes 13,333 shares issuable upon the exercise of options granted to Mr.
     Taylor  under the  Company's  1989 Stock  Option  Plan but does not include
     26,667  shares  subject to  options  that are not yet  unexercisable.  Also
     includes  4,000 shares  outstanding  held by Mr.  Taylor's wife. Mr. Taylor
     disclaims beneficial ownership of his wife's shares.

     The following  table sets forth all  compensation  awarded to, earned by or
paid to the most highly  compensated  executive  officers  of the  Company  (the
"Named Executive Officers"),  for all services rendered in all capacities to the
Company and its subsidiaries during 1994, 1995 and 1996. No other person who was
an executive  officer of the Company at the end of 1996 was  awarded,  earned or
received annual salary and bonus in excess of $100,000.




                                       -7-

<PAGE>

<TABLE>
<CAPTION>


                             EXECUTIVE COMPENSATION

Summary Compensation Table

                                                                      Long-Term
                                                                    Compensation
                                                                   -------------
                                Annual Compensation                    Awards
                           -------------------------------------   -------------
    Name and                                                         Underlying       All Other
 Principal Position          Year      Salary          Bonus          Options      Compensation
- -----------------------    --------  -----------   -------------   -------------   ------------
<S>                          <C>     <C>           <C>             <C>             <C>
Jay Allen Chaffee            1996     $90,000 (1)  $150,000 (1)
Chairman of the Board        1995    $113,671       $19,969 (1)      440,000 (4)
of Directors                 1994    $114,000

A. Daniel Sharplin           1996    $154,526 (2)   $75,000 (2)                      $4,526 (7)
President and Chief          1995    $136,779       $39,969 (2)      640,000 (5)
Executive Officer            1994    $117,885

A. Baxter Nairon             1996     $95,537       $45,000 (3)      384,000 (6)
President, Tanknology/        n/a
NDE and Field Services        n/a
Division

<FN>
(1)  In 1993, the Company awarded a bonus of $19,969 to Mr. Chaffee; this amount
     was paid in  installments in 1995 with the last  installment  being paid in
     January  1996.  In July  1995 the  Company  amended  the  Senior  Executive
     Compensation  Plan and  revised  the annual sum paid to Bunker Hill for Mr.
     Chaffee's  management services as an Officer of the Company to $90,000 from
     $125,000 (see "Certain  Transactions").  In 1996 the Compensation Committee
     awarded  Mr.  Chaffee a bonus for 1996 of  $150,000  which is to be paid in
     1997.

(2)  In 1993, the Company accrued a $19,969 bonus for Mr. Sharplin;  this amount
     was paid in 1995. Also in 1995, the  Compensation  Committee  awarded him a
     $20,000 bonus which was paid in 1997.  Mr.  Sharplin's  1996 bonus award of
     $75,000 was paid in 1997.

(3)  Mr.  Nairon  joined the Company in 1996 and received a $10,000  bonus as an
     inducement  to join the Company.  He was also  granted a salary  advance of
     $10,000 as of his hire date. In 1996 the Compensation Committee awarded Mr.
     Nairon a 1996 bonus of $35,000  which was paid in 1997.  Mr.  Nairon repaid
     the salary advance out of proceeds from the bonus payment.

(4)  On June 22,  1995,  Mr.  Chaffee was awarded an option to purchase  440,000
     shares of Common  Stock at $0.125 per share which will expire in June 2005.
     The option vests  one-third  each year from date of grant starting June 22,
     1995. The option was granted in 1995,  subject to approval by  shareholders
     of an increase in the number of shares  available  for grant to  management
     under  options.  Shareholders  approved an increase in the number of shares
     available  for grant in 1996 to  2,500,000.  In  addition,  in 1996 certain
     previously  granted  options  were  repriced  (see  "Report on Repricing of
     Options" below).

(5)  On June 22, 1995 Mr.  Sharplin  was  awarded an option to purchase  640,000
     shares of Common  Stock at $0.125 per share which will expire in June 2005.
     The option vests  one-third  each year from date of grant starting June 22,
     1995. The option was granted in 1995,  subject to approval by  shareholders
     of an increase in the number of shares  available  for grant to  management
     under options.  Shareholders  approved an increased in the number of shares
     available  for grant in 1996 to  2,500,000.  In  addition,  in 1996 certain
     previously  granted  options  were  repriced  (see  "Report on Repricing of
     Options" below).

(6)  In March 1996,  the Board granted an option to purchase  384,000  shares of
     Common Stock to Mr. Nairon at $0.1875, the market price of NDE Common Stock
     on Mr.  Nairon's hire date.  The option vests ratably  one-third  each year
     starting at his date of hire.


                                       -8-

<PAGE>



(7)  Consists of matching  funds for the Company 401(k) Plan relating to Company
     contributions for 1992, 1993 and 1994 which were made in 1996.
</FN>
</TABLE>


     The  following  table sets forth  further  information  regarding the stock
options referred to above.

Option Grants in Last Fiscal Year

     The  following  table sets  forth  options  granted to the named  executive
officers during the year ended December 31, 1996.



                        Number of    Percent of
                         Shares     Total Options
                       Underlying    Granted to     Exercise
                        Options     Employees in    Price Per     Expiration
         Name           Granted     Fiscal Year       Share          Date
- -------------------   -----------   ------------   -----------   -------------
Jay Allen Chaffee       50,000(1)      10%         $ 0.1250        June 2004
A. Daniel Sharplin      50,000(1)      10%         $ 0.1250        June 2004
H. Baxter Nairon       384,000         76%         $ 0.1875 (1)   April 2006 (2)

- ----------------------
(1)  Issued  pursuant to a repricing of existing  option grants.  See "Report on
     Repricing of Options" below. (2) See Note (6) to the immediately  preceding
     table.

Fiscal Year End Options Values

     The  following  table  sets  forth  the  option  holdings  and the value of
unexercised  options  held by each Named  Executive  Officer as of December  31,
1996. None of the Named Executive Officers exercised options during 1996.



                       Numbers of Shares Underlying      Value of Unexercised
                           Unexercised-Options           in-the-Money-Options
                          at December 31, 1996           at December 31, 1996
                       ----------------------------   --------------------------

         Name          Exercisable    Unexercisable   Exercisable  Unexercisable
- --------------------   -----------    -------------   -----------  -------------

Jay Allen Chaffee        196,666          293,334     $  55,312    $  82,500 (1)
A. Daniel Sharplin       263,334          426,666     $  74,063    $ 120,000 (1)
H. Baxter Nairon               0          384,000     $       0    $  84,000 (2)

(1)  Represents (i) the difference  ($0.28125) between the exercise price of the
     options  ($0.125)  and the per share fair market value on December 31, 1996
     ($0.40625) times (ii) the number of shares subject to the options.

(2)  None of Mr. Nairon's  options vest until April 15, 1997, one year after his
     date of hire. Represents (i) the difference ($0.21875) between the exercise
     price of the  options  ($0.1875)  and the per share  fair  market  value on
     December 31, 1996 ($0.40625) times (ii) the number of shares subject to the
     options.

Compensation of Directors

     The  Company  has agreed to pay or  reimburse  the travel  expenses  of its
directors resulting from attendance at Board meetings.

Report on Repricing of Options

     In 1996 the  Compensation  Committee of the Board of  Directors  determined
that in connection with the granting of executive options in 1995, that it would
be in the best  interests  of  shareholders  and the Company to reprice  certain
management  options  that had been  granted  in 1993 to a current  market  price
rather than issue  additional  new options.  The Committee  believed that at the
existing exercise prices, the options were not providing the proper performance


                                       -9-

<PAGE>



incentive to management. Accordingly, the Committee repriced 50,000 options that
had been  previously  granted to each  Messrs.  Chaffee and  Sharplin as well as
20,000 for Mr. Eric  Hopkins,  the former  Vice  President  and Chief  Financial
Officer of the Company, to $0.125, then market price of the Common Stock. All of
the aforementioned options previously had exercise prices of $3.75. All of these
options remain fully vested following the repricing.

PROPOSAL  NO. 3 --  APPROVAL  OF THE  AMENDED  AND  RESTATED  NDE  ENVIRONMENTAL
                    CORPORATION  1989 STOCK OPTION PLAN,  WHICH WOULD BE RENAMED
                    AS THE  TANKNOLOGY-NDE  INTERNATIONAL,  INC. 1989  LONG-TERM
                    INCENTIVE PLAN

     The Board of Directors  of the Company has adopted,  subject to approval by
the  shareholders of the Company,  an amendment and restatement to the Company's
1989 Stock Option Plan, which would, among other things,  re-name the 1989 Stock
Option Plan as the Tanknology-NDE  International,  Inc. 1989 Long-Term Incentive
Plan (the "Incentive  Plan"). A copy of the Incentive Plan is attached hereto as
Appendix A. The  following  description  of the  Incentive  Plan is qualified by
reference to the full text of the Incentive Plan.

     The purpose of the  Incentive  Plan as so amended and restated is to retain
key  executives  and other  selected  employees,  reward  them for making  major
contributions  to the success of the Company and provide them with a proprietary
interest in the growth and performance of the Company and its  subsidiaries.  In
general,  the  Incentive  Plan as so amended  permits  the award of  stock-based
compensation  in addition to options,  extends the term of the  Incentive  Plan,
increases the number of shares of stock with respect to which awards may be made
under the Plan and accommodates  changes in response to the enactment of section
162(m) of the Internal  Revenue Code of 1986, as amended (the  "Code"),  and the
revisions  to  Rule  16b-3  promulgated  by the  U.S.  Securities  and  Exchange
Commission.

                                 Administration

     The Incentive Plan will be  administered  by the a committee  designated by
the Board of Directors of the Company to administer  the Incentive Plan (in this
caption,  the  "Committee").  The  Compensation  Committee of the Board has been
designated as this  Committee.  Subject to the terms of the Incentive  Plan, the
Committee will have authority (i) to select employees to receive awards, (ii) to
determine  the  timing,  form,  amount  or  value  and term of  awards,  and the
conditions  and  limitations,  if any,  subject to which awards will be made and
become  payable  and (iii) to  interpret  the  Incentive  Plan and adopt  rules,
regulations  and guidelines  for carrying out the Incentive  Plan. The Committee
may delegate  certain of its duties under the Incentive  Plan to the Chairman of
the Board, the President and other senior officers of the Company. The Committee
may not,  however,  delegate to any person the  authority to grant awards to, or
take other action with respect to, participants who are subject to Section 16 of
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or section
162(m) of the Internal Revenue Code of 1986, as amended (the "Code").

                            Types of Incentive Awards

     The  Incentive  Plan  provides for the grant of any or all of the following
types of awards: stock options, stock appreciation rights, stock awards and cash
awards.  Awards of different  types may be made  singly,  in  combination  or in
tandem.  Stock options may be incentive stock options  ("ISOs") that comply with
Section 422 of the Code.  No  participant  may be granted  awards  consisting of
stock  options  or stock  appreciation  rights  exercisable  for more than fifty
percent of the shares of Common Stock of the Company reserved for issuance under
the Incentive Plan.  Awards issued under the Plan as it was constituted prior to
this amendment and restatement  are not being  cancelled or reissued,  but shall
remain in effect in accordance with their terms.

              Shares of Common Stock Subject to the Incentive Plan

     The total  number of shares  of  Common  Stock of the  Company  that may be
awarded  pursuant to the Incentive  Plan since its original 1989  enactment will
not exceed 6,000,000 (six million).  The number of shares of Common Stock of the
Company  that may be  awarded  pursuant  to the  Incentive  Plan is  subject  to
adjustment upon the occurrence of certain events, as described below.



                                      -10-

<PAGE>



                                   Eligibility

     Participants  in the Incentive  Plan will be selected by the Committee from
among  those   employees  who  hold  positions  of   responsibility   and  whose
performance,  in the judgment of the Committee, have a significant effect on the
success of the Company.  All directors,  officers,  management employees and key
consultants  of the Company and its  subsidiaries  are eligible for awards under
the  Incentive  Plan.  Awards are  discretionary,  however,  and  nothing in the
Incentive  Plan  guarantees an employee of the Company or its  Subsidiaries  any
right to participate in the Incentive Plan or to be granted an award.  The table
set forth below shows the awards  allocated under the amended and restated Plan,
including awards subject to shareholder approval.
<TABLE>
<CAPTION>

                   1989 Stock Option Plan - Summary of Grants
                              As of April 30, 1997


                                            Options Granted Contingent on
                                               Approval of Amendment and
                                                    Restatement (1)           Total Options Granted
                                            -----------------------------   --------------------------
                                            Number of        Average        Number of      Average
             Name of Individual               Shares     Exercise Price       Shares    Exercise Price
<S>                                         <C>          <C>                <C>         <C>
- -----------------------------------------   ----------   --------------     ---------   --------------
Jay Allen Chaffee, Chairman                                                   690,000    $   0.12500
A. Daniel Sharplin, CEO and President                                         490,000    $   0.12500
H. Baxter Nairon, President,                                                  384,000    $   0.18750
Tanknology/NDE
Mark B. Bober, Director                        40,000    $  0.40625            40,000    $   0.40625
Charles C. McGettigan, Director                                                40,000    $   0.12500
Michael S. Taylor, Director                                                    40,000    $   0.12500
Myron A. Wick III, Director                                                    40,000    $   0.12500
All current executive officers as a group     250,000    $  0.40625         1,989,556    $   0.17240
(4 persons)
All current directors other than executive                                    160,000    $   0.19531
officers as a group (4 persons)
All current employees other than                                              620,000    $   0.21512
executive officers as a group (10 persons)
- ------------------
<FN>
(1)  Includes director and officer  compensation  option awards made in December
     1996 which vest ratably over three years and will expire in December  2006.
     The  market  value of the  shares  underlying  the  options  was  below the
     exercise  price as of June 30, 1997. For a discussion of the federal income
     tax  consequences of such issuance,  see "Federal Income Tax  Consequences"
     below.
</FN>
</TABLE>

                      Terms and Conditions of Stock Options

     Stock  options  will  have  exercise  prices  not less than 50% of the fair
market  value of the Common Stock of the Company on the date of grant and may be
ISOs that comply with Section 422 of the Code.  The exercise  price of any stock
option  may,  at  the  discretion  of the  Committee,  be  paid  in  cash  or by
surrendering  shares of Common  Stock of the Company or another  award under the
Incentive  Plan,  valued at fair market  value on the date of  exercise,  or any
combination  thereof.  The  Committee  shall  determine  acceptable  methods for
tendering  Common  Stock or other  awards to exercise a stock option as it deems
appropriate.  If permitted by the  Committee,  payment may be made by successive
exercises  by the  participant.  The  Committee  may  provide for loans from the
Company  to permit the  exercise  or  purchase  of awards  and may  provide  for
procedures  to permit the  exercise or purchase of awards by use of the proceeds
to be  received  from the sale of Common  Stock  issuable  pursuant to an award.
Unless otherwise provided in the applicable Award Agreement, in the event shares
of  Common  Stock  that are  restricted  or  subject  to  forfeiture  provisions
("Restricted  Stock") are tendered as consideration  for the exercise of a stock
option,  a number of the shares  issued upon the  exercise of the stock  option,
equal  to the  number  of  shares  of  Restricted  Stock  used as  consideration
therefor,  shall be subject to the same  restrictions as the Restricted Stock so
submitted  as well as any  additional  restrictions  that may be  imposed by the
Committee.



                                      -11-

<PAGE>



                Terms and Conditions of Stock Appreciation Rights

     Stock  appreciation  rights are rights to receive,  without  payment to the
Company,  cash or shares of Common Stock of the Company with a value  determined
by reference  to the  difference  between the exercise or "strike"  price of the
stock appreciation right and the fair market value or other specified  valuation
of the Common Stock of the Company at the time of exercise,  as set forth in the
Award Agreement.

                      Terms and Conditions of Stock Awards

     Stock awards may consist of Common  Stock of the Company or be  denominated
in  units of  Common  Stock of the  Company.  Stock  awards  may be  subject  to
conditions  established  by  the  Committee,  including,  but  not  limited  to,
continuous  service  with  the  Company  and its  subsidiaries,  achievement  of
specific  business  objectives,   increases  in  specified  indices,   attaining
specified growth rates and other comparable  measurements of performance.  Stock
awards may be based on fair market value or other specified valuations.  A stock
award may provide for voting rights and dividend or dividend equivalent rights.

                       Terms and Conditions of Cash Awards

     Cash awards may be denominated  in cash with the amount of payment  subject
to  conditions  specified  by the  Committee,  including,  but not  limited  to,
continuous  service  with  the  Company  and its  subsidiaries,  achievement  of
specific  business  objectives,   increases  in  specified  indices,   attaining
specified growth rates and other comparable measurements of performance.

                                Payment of Awards

     Payment  of awards  may be made in cash or Common  Stock of the  Company or
combinations  thereof, as determined by the Committee.  An award may provide for
the granting or issuance of additional,  replacement or alternative  awards upon
the  occurrence  of  specified  events,  including  the exercise of the original
award. With the approval of the Committee,  payments may be deferred,  either in
the form of installments or a future lump-sum payment.

                              Adjustment Provisions

     The  existence  of  outstanding  awards  shall not affect in any manner the
right or power of the Company or its  shareholders  to make or authorize  any or
all  adjustments,  recapitalizations,  reorganizations  or other  changes in the
capital stock of the Company or its business or any merger or  consolidation  of
the Company,  or any issue of bonds,  debentures,  preferred or prior preference
stock  (whether or not such issue is prior to, on a parity with or junior to the
Common Stock) or the  dissolution or liquidation of the Company,  or any sale or
transfer of all or any part of its assets or  business,  or any other  corporate
act or proceeding of any kind,  whether or not of a character similar to that of
the acts or proceedings enumerated above.

     In the event of any subdivision or consolidation  of outstanding  shares of
Common Stock or declaration  of a dividend  payable in shares of Common Stock or
capital  reorganization or  reclassification  or other transaction  involving an
increase or reduction in the number of outstanding  shares of Common Stock,  the
Committee  may adjust  proportionally  (i) the number of shares of Common  Stock
reserved under the Incentive Plan and covered by outstanding  awards denominated
in Common  Stock or units of Common  Stock;  (ii) the exercise or other price in
respect of such awards;  and (iii) the  appropriate  fair market value and other
price  determinations  for such  awards.  In the event of any  consolidation  or
merger of the Company with another  corporation or entity or the adoption by the
Company of a plan of exchange  affecting the Common Stock or any distribution to
holders of Common  Stock of  securities  or  property  (other  than  normal cash
dividends or dividends  payable in Common Stock),  the Committee shall make such
adjustments or other provisions as it may deem equitable,  including adjustments
to avoid fractional shares, to give proper effect to such event.

     In the event of a corporate merger, consolidation,  acquisition of property
or stock,  separation,  reorganization  or  liquidation,  the Committee shall be
authorized, in its discretion, (i) to issue or assume stock options,  regardless
of whether in a  transaction  to which section  424(a) of the Code  applies,  by
means of  substitution  of new  options  for  previously  issued  options  or an
assumption of previously  issued options,  (ii) to make provision,  prior to the
transaction, for the acceleration of the vesting and exercisability of, or lapse
of  restrictions  with respect to,  awards and the  termination  of options that
remain  unexercised at the time of such  transaction or (iii) to provide for the
acceleration of the vesting and exercisability of the options and the cancella-


                                      -12-

<PAGE>



tion thereof in exchange for such payment as shall be mutually  agreeable to the
participant and the Committee.

                            Termination of Employment

     Upon the  termination  of employment  by a  participant,  any  unexercised,
deferred or unpaid  awards  shall be treated as provided in the  specific  Award
Agreement  evidencing  the  award.  In the  event  of  such a  termination,  the
Committee   may,  in  its   discretion,   provide  for  the   extension  of  the
exercisability  of an award,  accelerate  the  vesting or  exercisability  of an
award,  eliminate  or make less  restrictive  any  restrictions  contained in an
award,  waive any  restriction  or other  provision of the Incentive  Plan or an
award or  otherwise  amend or modify the award in any manner  that is either (i)
not adverse to such participant or (ii) consented to by such participant.

                 Amendment and Termination of the Incentive Plan

     The Board of  Directors  of the  Company  may  amend,  modify,  suspend  or
terminate  the  Incentive  Plan for the  purpose of meeting  or  addressing  any
changes in legal  requirements or for any other purpose  permitted by law except
that (i) no amendment or alteration that would impair the rights under any award
previously  granted will be made without the award holder's  consent and (ii) no
amendment or alteration will be effective prior to approval by the  shareholders
of the Company to the extent such  approval  is then  required  pursuant to Rule
16b-3  promulgated under the Exchange Act in order to preserve the applicability
of any exemption provided by such rule to any award then outstanding (unless the
holder  of  such  award  consents)  or to the  extent  shareholder  approval  is
otherwise   required  by  applicable   legal   requirements.   No  amendment  or
modification  shall be made to the Incentive  Plan,  without the approval of the
shareholders  of the  Company,  which would  increase the total number of shares
reserved for the purposes of the Incentive Plan, except as provided with respect
to adjustments to the capital stock of the Company. Shareholder approval is also
necessary to materially  modify the  requirements for eligibility to participate
in the Incentive Plan.

                         Federal Income Tax Consequences

     The holder of a nonqualified  stock option will recognize no taxable income
as a result of the grant of the stock  option.  Upon the  exercise  of the stock
option,  however,  the holder of a  nonqualified  stock  option  will  recognize
taxable  ordinary  income in an amount equal to the difference  between the fair
market  value of the shares on the date of exercise and the exercise or purchase
price (or, in the case of  relinquishment,  in an amount equal to the sum of the
cash  received  and the fair  market  value  of the  shares  or  award  received
determined on the date of exercise)  and,  correspondingly,  the Company will be
entitled to an income tax deduction for such amount.

     Upon the exercise of an incentive  stock  option,  the stock option  holder
generally will not recognize  taxable income by reason of the exercise,  and the
Company normally will not be entitled to any income tax deduction.  If the stock
option holder  disposes of the shares acquired upon the exercise of an incentive
stock option after  satisfaction of certain minimum  holding  periods,  any gain
realized will be capital gain. Gain  attributable to post-exercise  appreciation
of stock acquired upon the exercise of a nonqualified  or incentive stock option
will be long-term capital gain if the stock option holder has held the shares as
a capital asset for more than one year. If a stock option holder disposes of the
shares  acquired  upon the  exercise of an  incentive  stock option prior to the
expiration  of the  minimum  holding  periods,  the stock  option  holder  would
recognize  ordinary income,  and the Company would be entitled to a commensurate
income tax deduction (except with respect to post-exercise appreciation).

     The grant of a stock  appreciation  right will produce no U.S.  federal tax
consequences  for  the  participant  or the  Company.  The  exercise  of a stock
appreciation  right results in taxable  income to the  participant  equal to the
difference  between the exercise price of the shares and the market price of the
shares  on the  date of  exercise,  and a  corresponding  tax  deduction  to the
Company.

     A  participant  under the  Incentive  Plan who has been granted an award of
Restricted  Stock will not realize taxable income at the time of the grant,  and
the Company  will not be entitled to a tax  deduction  at the time of the grant,
unless the  participant  makes an election to be taxed at the time of the award.
When the restrictions lapse, the participant will recognize taxable income in an
amount  equal to the excess of the fair market  value of the shares at such time
over the amount, if any, paid for such shares. The Company will be entitled to a
corresponding  tax  deduction.  Dividends  paid to the  participant  during  the
restriction  period  will also be  compensation  income to the  participant  and
deductible  as such by the Company.  The holder of a Restricted  Stock award may
elect to be taxed at the  time of grant of the  Restricted  Stock on the  market
value  of the  shares,  in which  case (i) the  Company  will be  entitled  to a
deduction at the same time and in the same amount, (ii) dividends paid to the


                                      -13-

<PAGE>



participant during the restriction period will be taxable as dividends to him or
her and will not be deductible by the Company and (iii) there will be no further
federal income tax consequences when the restrictions lapse.

                                  Vote Required

     Approval of the  Incentive  Plan as amended and  restated  will require the
affirmative  vote of the holders of a majority of the shares of Common  Stock of
the Company represented and entitled to vote at the meeting.

           THE BOARD OF DIRECTORS OF THE COMPANY RECOMMENDS A VOTE FOR
                         APPROVAL OF THE INCENTIVE PLAN.


PROPOSAL NO. 4 --   RATIFICATION   OF   APPOINTMENT   OF   INDEPENDENT    PUBLIC
                    ACCOUNTANTS

     At the Meeting, the stockholders will be asked to ratify the appointment by
the  Board  of  Ernst  &  Young  L.L.P.  as  the  Company's  independent  public
accountants to perform the audit of the Company's  financial  statements for the
fiscal year ended December 31, 1997. Ernst & Young L.L.P. has been the Company's
auditors  since the  resignation  of Touche Ross,  L.L.P.  in November 1989. The
Board of  Directors  currently  does not expect the  representatives  of Ernst &
Young L.L.P. to be present at the Meeting and,  accordingly,  no representatives
are expected to be available to respond to questions. However representatives of
Ernst & Young L.L.P.  are invited to attend the Meeting and, should they attend,
they will be given an  opportunity  to make a  statement  at the Meeting if they
desire to do so and will be available to respond to appropriate  questions.  The
affirmative  vote of a majority of the  Company's  outstanding  shares of Common
Stock  represented  and voting at the Meeting is required  for  approval of this
proposal.

          THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR RATIFICATION OF
        FOR APPOINTMENT OF ERNST & YOUNG L.L.P. AS THE COMPANY'S AUDITORS

STOCKHOLDERS PROPOSALS FOR THE 1998 ANNUAL MEETING OF STOCKHOLDERS

     The Company intends to hold its 1998 annual meeting of stockholders in June
1998.  Stockholders proposals for inclusion in the Company's Proxy Statement and
form of proxy for the 1998 annual  meeting of  stockholders  must be received by
the Company no later than March 13, 1998.

OTHER BUSINESS

     The  Board of  Directors  does not  presently  intend  to bring  any  other
business before the Meeting,  and, so far as is known to the Board of Directors,
no matters  are to be brought  before the  Meeting  except as  specified  in the
notice of the  Meeting.  As to any business  that may  properly  come before the
Meeting,  however,  it is intended that proxies,  in the form enclosed,  will be
voted in respect  thereof in accordance  with the judgment of the persons voting
such proxies.

     WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING, PLEASE COMPLETE,  DATE, SIGN
AND  PROMPTLY  RETURN  THE  ACCOMPANYING  PROXY  IN  THE  ENCLOSED  POSTAGE-PAID
ENVELOPE.




                                      -14-

<PAGE>


                                      PROXY


NDE ENVIRONMENTAL   THIS PROXY IS  SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
     CORPORATION    The   undersigned    hereby   appoints    _________________,
8900 SHOAL CREEK    __________________,  and each of them,  attorneys and agents
     BOULEVARD      with full  power of  substitution,  to vote as proxy all the
BUILDING  200  shares  of Common  Stock of NDE  Environmental  Corporation  held
AUSTIN, TX 78758 of record by the undersigned on July 11, 1997 at the Annual
                    Meeting of Stockholders of NDE Environmental  Corporation to
                    be  held  on  August  14,  1997  and at any  adjournment  or
                    postponement thereof, in the manner indicated on the reverse
                    hereof and in their  discretion on such other matters as may
                    properly  come  before  said  meeting  or  any  adjournments
                    thereof.

     If you wish to vote in accordance with the  recommendations of the Board of
Directors,  you may just  sign  and date  below  and  mail in the  postage  paid
envelope provided. Specific choices may be made on the reverse side.

                     Dated ___________________________, 1997


                                    -----------------------------------------
                                    Signature

                                    -----------------------------------------
                                    Signature if held jointly

                                    When  signing  as  Executor,  Administrator,
                                    Trustee or the like, please give full title.


                                PROXY (CONTINUED)

This Proxy will be voted as directed,  or if no direction is indicated,  will be
voted FOR Proposal 1, FOR all nominees  listed below for election as  directors,
FOR Proposal 3 and FOR Proposal 4. The Board of Directors  recommends a vote FOR
Proposals 1, 2, 3 and 4.


(1) Approval of the Amendment to the    FOR [ ]     AGAINST [ ]      ABSTAIN [ ]
    Certificate of Incorporation to 
    change the Company's name to 
    Tanknology-NDE International, Inc.


(2) Election of Directors   FOR ALL [ ]                   WITHHOLD AUTHORITY [ ]
                           (except as specified below)    TO VOTE FOR

                           Jay Allen Chaffee
                           Charles C. McGettigan
                           A. Daniel Sharplin
                           Michael S. Taylor
                           Myron A. Wick
                           Mark A. Bober

Instructions:  To withhold vote for individual(s), write name(s) below.

_____________________________________________________________________________

(3) Approval of the adoption of the     FOR [ ]     AGAINST [ ]      ABSTAIN [ ]
    amendment and restatement of the
    Company's 1989 Stock Option Plan

(4) Ratification of the appointment of  FOR [ ]     AGAINST [ ]      ABSTAIN [ ]
    Ernst & Young L.L.P. as Independent
    Public Accountants

                                                (Sign and date on reverse side)


                                      -15-
<PAGE>


                                                                      Appendix A



                       TANKNOLOGY-NDE INTERNATIONAL, INC.
                              AMENDED AND RESTATED
                             1989 STOCK OPTION PLAN

                      As previously Adopted August 28, 1989
                                       and
  As Amended July 10, 1990, March 28, 1991, December 6, 1991 and June 26, 1996


     1. Purpose and  Objective.  The 1989 Stock Option Plan was  established  by
Tanknology- NDE International,  Inc. (the "Company"), formerly NDE Environmental
Corporation,  to  attract,  retain and  provide  equity  incentives  to selected
persons to promote  the  financial  success of the  Company.  This  amended  and
restated  1989 Stock Option Plan,  which will  henceforth  be  designated as the
Tanknology-NDE  International,  Inc. 1989 Long-Term Incentive Plan (the "Plan"),
is amended and restated in order to facilitate  compliance with recently-adopted
section 162(m) of the Internal  Revenue Code of 1986, and changed  provisions of
Rule 16b-3  promulgated under the Exchange Act (as defined below), as well as to
permit  issuance  of  stock-based  compensation  Awards  (as  defined  below) in
addition to stock options. The Plan is also being amended to increase the number
of shares  with  respect to which  Awards  may be offered  under the Plan and to
extend  the term of the Plan.  As so  amended,  the Plan is  designed  to retain
selected employees of the Company and its Subsidiaries (as hereinafter  defined)
and  reward  them for making  significant  contributions  to the  success of the
Company and its Subsidiaries.  These objectives are to be accomplished by making
Awards  under  the Plan  and  thereby  providing  Participants  (as  hereinafter
defined)  with a  proprietary  interest  in the  growth and  performance  of the
Company and its  Subsidiaries.  The Plan is hereby  amended  and  restated as it
shall appear in the text of this document.

     2.  Definitions.  As used herein,  the terms set forth below shall have the
following respective meanings:

     "Award"  means the grant of any form of stock  option,  stock  appreciation
right,  stock award or cash award,  whether granted singly, in combination or in
tandem,  to a  Participant  pursuant to any  applicable  terms,  conditions  and
limitations as the Committee may establish in order to fulfill the objectives of
the Plan.

     "Award  Agreement"  means a written  agreement  between  the  Company and a
Participant that sets forth the terms,  conditions and limitations applicable to
an Award.

     "Board" means the Board of Directors of the Company.

     "Code"  means the Internal  Revenue  Code of 1986,  as amended from time to
time.

     "Committee" means such committee of the Board as is designated by the Board
to administer the Plan.


                                       -1-

<PAGE>



     "Common Stock" means the Common Stock,  par value $ .0001 per share, of the
Company.

     "Director" means an individual serving as a member of the Board.

     "Exchange Act" means the  Securities  Exchange Act of 1934, as amended from
time to time.

     "Fair Market Value" means,  as of a particular  date,  (i) if the shares of
Common Stock are listed on a national securities exchange,  the mean between the
highest  and lowest  sales price per share of Common  Stock on the  consolidated
transaction reporting system for the principal such national securities exchange
on that  date,  or, if there  shall have been no such sale so  reported  on that
date, on the last preceding  date on which such a sale was so reported,  (ii) if
the  shares of  Common  Stock are not so  listed  but are  quoted in the  NASDAQ
National  Market  System the mean between the highest and lowest sales price per
share of Common Stock on the NASDAQ  National Market System on that date, or, if
there  shall  have  been no such  sale so  reported  on that  date,  on the last
preceding  date on which such a sale was so reported,  (iii) if the Common Stock
is not so listed or quoted,  the mean between the closing bid and asked price on
that date,  or, if there are no quotations  available for such date, on the last
preceding  date on which such  quotations  shall be  available,  as  reported by
NASDAQ, or, if not reported by NASDAQ, by the National  Quotation Bureau,  Inc.,
or (iv) if none of the above is applicable,  such amount as may be determined by
the Board, in good faith, to be the fair market value per share of Common Stock.

     "ISO" means an incentive  stock option within the meaning of section 422 of
the Code.

     "Participant"  means an employee of the Company or any of its  Subsidiaries
to whom an Award has been made under this Plan.

     "Restricted  Stock"  means Common  Stock that is  restricted  or subject to
forfeiture provisions.

     "Rule 16b-3" means Rule 16b-3  promulgated  under the Exchange  Act, or any
successor rule.

     "Subsidiary"  means  any  corporation  of which  the  Company  directly  or
indirectly  owns shares  representing  more than 50% of the voting  power of all
classes or series of capital stock of such  corporation  which have the right to
vote  generally  on  matters  submitted  to a vote of the  shareholders  of such
corporation.

     3.  Eligibility.  All Awards  issued under this Plan prior to the effective
date of this  amendment and  restatement  of the Plan shall remain  effective in
accordance with their terms and provisions. All Directors,  officers, management
employees and key consultants of the Company and its  Subsidiaries  are eligible
for  Awards  under  this Plan as  amended  and  restated.  The  Committee  shall
determine  eligibility  for Awards  under the Plan in its sole  discretion,  and
shall  select  the  Participants  in the Plan  from time to time by the grant of
Awards under the Plan.  The granting of Awards under this Plan shall be entirely
discretionary  and nothing in this Plan shall be deemed to give any  employee of
the Company or its  Subsidiaries  any right to participate in this Plan or to be
granted an Award.


                                       -2-

<PAGE>



     4. Common Stock  Available for Awards.  There shall be available for Awards
granted wholly or partly in Common Stock (including  rights or options which may
be exercised for or settled in Common Stock) during the term of this Plan, which
commenced  pursuant  to the  Plan as it was  adopted  on  August  28,  1989,  an
aggregate  of  6,000,000  (six  million)  shares of  Common  Stock,  subject  to
adjustment  as  provided  in  Paragraph  14.  The  Board  of  Directors  and the
appropriate  officers  of the  Company  shall  from time to time  take  whatever
actions are necessary to file required  documents with governmental  authorities
and stock exchanges and transaction  reporting  systems to make shares of Common
Stock available for issuance pursuant to Awards.  Common Stock related to Awards
that are forfeited or  terminated,  expire  unexercised,  are settled in cash in
lieu of Common Stock or in a manner such that all or some of the shares  covered
by an Award are not issued to a Participant, or are exchanged for Awards that do
not  involve  Common  Stock,  shall  immediately  become  available  for  Awards
hereunder.

     5. Administration.  This Plan shall be administered by the Committee, which
shall have full and  exclusive  power to  interpret  this Plan and to adopt such
rules,  regulations  and  guidelines  for  carrying out this Plan as it may deem
necessary  or  proper,  all of  which  powers  shall  be  exercised  in the best
interests of the Company and in keeping with the objectives of this Plan. Unless
otherwise provided in an Award Agreement with respect to a particular award, the
Committee   may,  in  its   discretion,   provide  for  the   extension  of  the
exercisability  of an Award,  accelerate  the  vesting or  exercisability  of an
Award,  eliminate  or make less  restrictive  any  restrictions  contained in an
Award,  waive any  restriction  or other  provision  of this Plan or an Award or
otherwise  amend or modify an Award in any manner that is either (i) not adverse
to the Participant  holding such Award or (ii) consented to by such Participant,
including  (in either case) an amendment or  modification  that may result in an
ISO Award losing its status as an ISO. The  Committee  may correct any defect or
supply any omission or reconcile any  inconsistency in this Plan or in any Award
in the manner and to the extent the  Committee  deems  necessary or desirable to
carry it into effect.  Any decision of the Committee in the  interpretation  and
administration  of this Plan shall lie within its sole and  absolute  discretion
and shall be final,  conclusive and binding on all parties concerned.  No member
of the Committee or officer of the Company to whom it has delegated authority in
accordance  with the  provisions of Paragraph 6 of this Plan shall be liable for
anything  done  or  omitted  to be  done by him or  her,  by any  member  of the
Committee or by any officer of the Company in connection with the performance of
any duties under this Plan,  except for his or her own willful  misconduct or as
expressly provided by statute.

     6.  Delegation of Authority.  The Committee may delegate to the Chairman of
the Board of  Directors,  the  President  and to other  senior  officers  of the
Company its duties under this Plan pursuant to such conditions or limitations as
the Committee may  establish,  except that the Committee may not delegate to any
person the  authority  to grant Awards to, or take other action with respect to,
Participants who are subject to Section 16 of the Exchange Act or section 162(m)
of the Code.

     7. Awards.  The Committee shall determine the type or types of Awards to be
made to each  Participant  under this Plan.  Each Award made hereunder  shall be
embodied in an Award Agreement,  which shall contain such terms,  conditions and
limitations as shall be determined by the


                                       -3-

<PAGE>



     Committee in its sole discretion and shall be signed by the Participant and
by the  President or any Vice  President of the Company for and on behalf of the
Company.  An Award  Agreement may include  provisions  for the repurchase by the
Company of Common Stock  acquired  pursuant to the Plan and the  repurchase of a
Participant's  option rights under the Plan.  Awards may consist of those listed
in this  Paragraph 7 and may be granted  singly,  in  combination  or in tandem.
Awards may also be made in combination or in tandem with, in replacement  of, or
as  alternatives  to, grants or rights (i) under this Plan or any other employee
plan  of the  Company  or any of its  Subsidiaries,  including  the  plan of any
acquired  entity or (ii)  made to any  Company  or  Subsidiary  employee  by the
Company or any Subsidiary.  An Award may provide for the granting or issuance of
additional,  replacement or alternative  Awards upon the occurrence of specified
events, including the exercise of the original Award.


     Notwithstanding  anything  herein to the contrary,  no  Participant  may be
granted  Awards  consisting  of  stock  options  or  stock  appreciation  rights
exercisable  for  more  than  50% of  the  shares  of  Common  Stock  originally
authorized  for Awards  under the Plan,  subject to  adjustment  as  provided in
Paragraph  14. In the event of an  increase  in the number of shares  authorized
under  the  Plan,  the  50%  limitation  will  apply  to the  number  of  shares
authorized.

     (a) Stock  Option.  An Award may consist of a right to purchase a specified
number of shares of Common Stock at a price  specified by the Committee  that is
not less than 50% of the Fair  Market  Value of the Common  Stock on the date of
grant.  A stock option may be in the form of an ISO which,  in addition to being
subject to applicable  terms,  conditions,  and  limitations  established by the
Committee,  complies  with  section  422  of  the  Code.  Pursuant  to  the  ISO
requirements of section 422 of the Code,  notwithstanding anything herein to the
contrary,  (i) no ISO can be  granted  under  the  Plan on or  after  the  tenth
anniversary  of the  Effective  Date  of  the  amended  and  restated  Plan  (as
hereinafter  defined),  (ii) no  Participant  may be granted an ISO if, upon the
grant of the ISO, the aggregate Fair Market Value (determined as of the date the
Award is  granted)  of the Common  Stock with  respect to which ISOs  (including
Awards  hereunder) are exercisable for the first time by the Participant  during
any calendar year (under all plans of the Participant's employer corporation and
its parent and  subsidiary  corporations)  would  exceed  $100,000  and (iii) no
Participant  may be granted an ISO if the  Participant is not an employee of the
Company or a Subsidiary. No person shall be eligible for the grant of an ISO who
owns  (within  the meaning of  sections  422 and 424 of the Code),  or would own
immediately after the grant of such ISO, directly or indirectly stock possessing
more than 10% of the total combined  voting power of all classes of stock of the
Company.  This restriction  shall not apply if, at the time such ISO is granted,
the ISO price is at least 110% of Fair Market Value on the date of grant and the
ISO is not, by its terms exercisable after the expiration of five years from the
date of grant.

     (b) Stock Appreciation  Right. An Award may consist of a right to receive a
payment,  in cash or Common Stock,  equal to the excess of the Fair Market Value
or other specified  valuation of a specified number of shares of Common Stock on
the date the stock  appreciation  right  ("SAR") is  exercised  over a specified
strike price as set forth in the applicable Award Agreement.



                                       -4-

<PAGE>



     (c) Stock Award. An Award may consist of Common Stock or may be denominated
in units of Common  Stock.  All or part of any stock  award  may be  subject  to
conditions  established by the Committee,  and set forth in the Award Agreement,
which may include,  but are not limited to, continuous  service with the Company
and its Subsidiaries,  achievement of specific business objectives, increases in
specified  indices,  attaining  specified  growth  rates  and  other  comparable
measurements  of  performance.  Such Awards may be based on Fair Market Value or
other specified valuations.  The certificates  evidencing shares of Common Stock
issued in connection  with a stock award shall contain  appropriate  legends and
restrictions  describing the terms and conditions of the restrictions applicable
thereto.

     (d) Cash Award.  An Award may be denominated in cash with the amount of the
eventual  payment  subject to future  service  and such other  restrictions  and
conditions as may be established  by the  Committee,  and set forth in the Award
Agreement,  including,  but not limited to, continuous  service with the Company
and its Subsidiaries,  achievement of specific business objectives, increases in
specified  indices,  attaining  specified  growth  rates  and  other  comparable
measurements of performance.

     8. Payment of Awards.

     (a)  General.  Payment  of Awards may be made in the form of cash or Common
Stock or combinations thereof and may include such restrictions as the Committee
shall determine, including in the case of Common Stock, restrictions on transfer
and forfeiture provisions.

     (b) Deferral. With the approval of the Committee, payments may be deferred,
either in the form of installments  or a future lump sum payment.  The Committee
may,  in its  discretion,  (i) permit  selected  Participants  to elect to defer
payments  of  some  or  all  types  of  Awards  in  accordance  with  procedures
established  by the Committee or (ii) provide for the deferral of an Award in an
Award  Agreement or  otherwise.  Any deferred  payment,  whether  elected by the
Participant  or specified by the Award  Agreement  or by the  Committee,  may be
forfeited if and to the extent that the Award Agreement so provides.

     (c) Dividends and Interest.  Dividends or dividend equivalent rights may be
extended to and made part of any Award  denominated  in Common Stock or units of
Common  Stock,  subject  to  such  terms,  conditions  and  restrictions  as the
Committee may establish.  The Committee may also establish  rules and procedures
for the crediting of interest on deferred cash payments and dividend equivalents
for deferred payment denominated in Common Stock or units of Common Stock.

     (d)  Substitution  of  Awards.  At  the  discretion  of  the  Committee,  a
Participant  may be offered an election to substitute an Award for another Award
or Awards of the same or different type.

     9. Stock Option Exercise.  The price at which shares of Common Stock may be
purchased  under a stock option shall be paid in full at the time of exercise in
cash or, if permitted by the  Committee,  by means of tendering  Common Stock or
surrendering another Award, including  Restricted  Stock,  valued at Fair Market


                                       -5-

<PAGE>



Value on the date of exercise,  or any combination  thereof. The Committee shall
determine  acceptable  methods for  tendering  Common  Stock or other  Awards to
exercise a stock option as it deems appropriate.  If permitted by the Committee,
payment may be made by successive  exercises by the  Participant.  The Committee
may  provide  for loans from the  Company to permit the  exercise or purchase of
Awards and may  provide  for  procedures  to permit the  exercise or purchase of
Awards by use of the  proceeds  to be  received  from the sale of  Common  Stock
issuable pursuant to an Award. Unless otherwise provided in the applicable Award
Agreement, in the event shares of Restricted Stock are tendered as consideration
for the  exercise  of a stock  option,  a number of the shares  issued  upon the
exercise of the stock option,  equal to the number of shares of Restricted Stock
used as consideration therefor, shall be subject to the same restrictions as the
Restricted Stock so submitted as well as any additional restrictions that may be
imposed by the Committee.

     10. Tax Withholding.  The Company shall have the right to deduct applicable
taxes from any Award payment and withhold, at the time of delivery or vesting of
cash or shares of Common Stock under this Plan, an appropriate amount of cash or
number of shares of Common Stock or a  combination  thereof for payment of taxes
required by law or to take such other  action as may be necessary in the opinion
of the Company to satisfy all  obligations  for  withholding of such taxes.  The
Committee  may also permit  withholding  to be  satisfied by the transfer to the
Company of shares of Common Stock  theretofore  owned by the holder of the Award
with respect to which  withholding  is  required.  If shares of Common Stock are
used to satisfy tax  withholding,  such shares shall be valued based on the Fair
Market Value when the tax withholding is required to be made.

     11.  Amendment,  Modification,  Suspension  or  Termination.  The Board may
amend,  modify,  suspend or  terminate  this Plan for the  purpose of meeting or
addressing any changes in legal  requirements or for any other purpose permitted
by law except that (i) no amendment or  alteration  that would impair the rights
of any Participant under any Award previously  granted to such Participant shall
be made without such  Participant's  consent and (ii) no amendment or alteration
shall be effective prior to approval by the Company's stockholders to the extent
such approval is then  required  pursuant to Rule 16b-3 in order to preserve the
applicability  of  any  exemption  provided  by  such  rule  to any  Award  then
outstanding  (unless  the  holder  of  such  Award  consents)  or to the  extent
stockholder  approval is otherwise  required by applicable  legal  requirements.
Notwithstanding  the  foregoing,  no  amendment or  modification  shall be made,
without the approval of the shareholders of the Company, which would:

          (a)  Increase the total number of shares  reserved for the purposes of
               the Plan under  Paragraph 4, except as provided in Paragraph  14;
               or

           (b) Materially   modify  the   requirements  as  to  eligibility  for
               participation in the Plan.

     12.  Termination  of  Employment.  Upon the  termination of employment by a
Participant,  any  unexercised,  deferred or unpaid  Awards  shall be treated as
provided in the specific Award  Agreement  evidencing the Award. In the event of
such a termination, the Committee may, in its discretion, provide for the exten-


                                       -6-

<PAGE>



sion of the exercisability of an Award, accelerate the vesting or exercisability
of an Award, eliminate or make less restrictive any restrictions contained in an
Award,  waive any  restriction  or other  provision  of this Plan or an Award or
otherwise amend or modify the Award in any manner that is either (i) not adverse
to such Participant or (ii) consented to by such Participant.

     13.  Assignability.  Unless  otherwise  determined  by  the  Committee  and
provided in the Award  Agreement,  no Award or any other benefit under this Plan
constituting a derivative security within the meaning of Rule 16a-l(c) under the
Exchange Act shall be assignable or otherwise transferable except by will or the
laws of descent and distribution or pursuant to a qualified  domestic  relations
order (a "QDRO") as  defined by the Code or Title I of the  Employee  Retirement
Income Security Act, as amended ("ERISA"), or the rules thereunder. No ISO Award
under this Plan shall be assignable or otherwise  transferrable,  except by will
or the laws of descent and distribution or pursuant to a QDRO. The Committee may
prescribe and include in  applicable  Award  Agreements  other  restrictions  on
transfer.  Any attempted  assignment of an Award or any other benefit under this
Plan in violation of this Paragraph 13 or the terms of an Award  Agreement shall
be null and void.

     14. Adjustments.

     (a) The existence of outstanding  Awards shall not affect in any manner the
right or power of the Company or its  shareholders  to make or authorize  any or
all  adjustments,  recapitalizations,  reorganizations  or other  changes in the
capital stock of the Company or its business or any merger or  consolidation  of
the Company,  or any issue of bonds,  debentures,  preferred or prior preference
stock  (whether or not such issue is prior to, on a parity with or junior to the
Common Stock) or the  dissolution or liquidation of the Company,  or any sale or
transfer of all or any part of its assets or  business,  or any other  corporate
act or proceeding of any kind,  whether or not of a character similar to that of
the acts or proceedings enumerated above.

     (b) In the event of any subdivision or consolidation of outstanding  shares
of Common Stock or declaration  of a dividend  payable in shares of Common Stock
or capital  reorganization or reclassification or other transaction involving an
increase or reduction in the number of outstanding  shares of Common Stock,  the
Committee  may adjust  proportionally  (i) the number of shares of Common  Stock
reserved under this Plan and covered by outstanding Awards denominated in Common
Stock or units of Common  Stock;  (ii) the exercise or other price in respect of
such  Awards;  and (iii)  the  appropriate  Fair  Market  Value and other  price
determinations  for such Awards.  In the event of any consolidation or merger of
the Company with another corporation or entity or the adoption by the Company of
a plan of exchange  affecting the Common Stock or any distribution to holders of
Common  Stock of  securities  or property  (other than normal cash  dividends or
dividends payable in Common Stock), the Committee shall make such adjustments or
other  provisions  as it may  deem  equitable,  including  adjustments  to avoid
fractional  shares,  to give  proper  effect  to such  event.  In the event of a
corporate merger,  consolidation,  acquisition of property or stock, separation,
reorganization  or  liquidation,  the  Committee  shall  be  authorized,  in its
discretion,  (i) to issue or assume stock  options,  regardless  of whether in a
transaction  to  which  section  424(a)  of  the  Code  applies,   by  means  of
substitution of new options for previously issued options or an assumption of


                                       -7-

<PAGE>



previously issued options, (ii) to make provision, prior to the transaction, for
the acceleration of the vesting and  exercisability of, or lapse of restrictions
with respect to, Awards and the  termination of options that remain  unexercised
at the time of such  transaction or (iii) to provide for the acceleration of the
vesting  and  exercisability  of the  options  and the  cancellation  thereof in
exchange for such payment as shall be mutually  agreeable to the Participant and
the Committee.

     15. Restrictions.  No Common Stock or other form of payment shall be issued
with  respect to any Award unless the Company  shall be  satisfied  based on the
advice of its counsel that such issuance will be in compliance  with  applicable
federal and state  securities  laws.  It is the intent of the Company  that this
Plan comply with Rule 16b-3 with respect to persons subject to Section 16 of the
Exchange Act unless otherwise provided herein or in an Award Agreement, that any
ambiguities or  inconsistencies  in the construction of this Plan be interpreted
to give  effect to such  intention,  and that if any  provision  of this Plan is
found not to be in compliance with Rule 16b-3,  such provision shall be null and
void to the  extent  required  to permit  this Plan to comply  with Rule  16b-3.
Certificates  evidencing shares of Common Stock delivered under this Plan may be
subject to such stop transfer orders and other restrictions as the Committee may
deem  advisable  under the  rules,  regulations  and other  requirements  of the
Securities  and Exchange  Commission,  any  securities  exchange or  transaction
reporting  system upon which the Common Stock is then listed and any  applicable
federal and state securities law. The Committee may cause a legend or legends to
be placed  upon any such  certificates  to make  appropriate  reference  to such
restrictions.

     16. Unfunded Plan.  Insofar as it provides for Awards of cash, Common Stock
or rights thereto,  this Plan shall be unfunded.  Although  bookkeeping accounts
may be established with respect to Participants who are entitled to cash, Common
Stock or rights  thereto under this Plan, any such accounts shall be used merely
as a bookkeeping convenience. The Company shall not be required to segregate any
assets  that may at any time be  represented  by cash,  Common  Stock or  rights
thereto, nor shall this Plan be construed as providing for such segregation, nor
shall the Company nor the Board nor the  Committee  be deemed to be a trustee of
any cash,  Common  Stock or rights  thereto to be granted  under this Plan.  Any
liability  or  obligation  of the Company to any  Participant  with respect to a
grant of cash,  Common  Stock or rights  thereto  under this Plan shall be based
solely upon any contractual obligations that may be created by this Plan and any
Award  Agreement,  and no such  liability or  obligation of the Company shall be
deemed to be secured by any pledge or other  encumbrance  on any property of the
Company.  Neither the Company nor the Board nor the Committee  shall be required
to give any security or bond for the  performance of any obligation  that may be
created by this Plan.

     17.  No  Employment  Guaranteed.  No  provision  of this  Plan or any Award
Agreement  hereunder  shall confer any right upon any employee or  consultant to
continued employment with the Company or any Subsidiary.

     18. Rights as a Shareholder.  Unless otherwise  provided under the terms of
an Award  Agreement,  a  Participant  shall have no rights as a holder of Common
Stock with respect to Awards granted  hereunder,  unless and until  certificates
for shares of Common Stock are issued to such Participant.


                                       -8-

<PAGE>


     19. Governing Law. This Plan and all determinations  made and actions taken
pursuant hereto, to the extent not otherwise governed by mandatory provisions of
the Code or the securities  laws of the United States,  shall be governed by and
construed in accordance with the laws of the State of Texas.

     20.  Effective  Date of Plan.  This Plan as amended and  restated  shall be
effective as of the date (the  "Effective  Date") it is approved by the Board of
Directors of the Company,  subject to approval by shareholders of the Company at
the next subsequent  shareholders' meeting.  Notwithstanding the foregoing,  the
adoption of this Plan as so amended and restated is expressly  conditioned  upon
the approval by the holders of a majority of shares of Common Stock present,  or
represented,  and  entitled to vote at a meeting of the  Company's  shareholders
held on or before  _________________.  If the shareholders of the Company should
fail so to approve this Plan prior to such date,  this Plan shall  terminate and
cease to be of any  further  force or effect and all grants of Awards  hereunder
shall be null and void.

                                  Attested to by the Secretary of Tanknology-
                                  NDE International, Inc. as adopted by the
                                  Board of Directors of Tanknology-NDE
                                  International, Inc. effective as of the _____
                                  day of ______________, 1997 (the "Effective
                                  Date") of this amended and restated Plan.






                                       -9-


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