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Exhibit 10.11

SEPARATION AND RELEASE AGREEMENT

This Separation and Release Agreement (the "Agreement"), dated as of August 17, 1999, is by and between Nicollet Process Engineering, Inc. (the
"Company") and Robert Pitner ("Pitner").

A.  The
Company and Pitner have entered into an Employment Agreement, dated as of September 1, 1995, as amended (as so amended, the "1995 Employment Agreement'),
and an Employment Agreement, dated as of September 1, 1998 (the "1998 Employment Agreement"). The 1995 Employment Agreement and the 1998 Employment Agreement are sometimes collectively referred
to as the "Employment Agreements".

B.  Pitner
and the Company wish to provide for the termination of the Employment Agreements and Pitner's employment with the Company in a final and binding way that
settles and resolves all existing and potential disputes between them, as provided in this Agreement.

Accordingly,
in consideration of the mutual covenants and promises contained herein, and for other good and valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, Pitner and the Company agree as follows:

1.Resignation.Pitner confirms that he resigned his employment with the Company and his positions as
an officer and director of the Company effective May 18, 1999 (the "Resignation Date"). Accordingly, Pitner's employment relationship with the Company terminated effective as of the Resignation
Date.

2.Termination of Employment Agreements.The Company and Pitner acknowledge and agree that the 1998
Employment Agreement superseded and replaced the 1995 Employment Agreement Accordingly, the 1995 Employment Agreement was terminated effective September 1, 1998. The 1998 Employment Agreement
is hereby terminated effective as of the Resignation Date, except that 4 and Section 5(a), (b) and (c) of the 1998 Employment Agreement shall remain in effect in accordance with
their terms. In addition, Section 5(d) of the 1998 Employment Agreement shall remain in effect in accordance with its terms through November 18, 1999, at which time the restrictions
contained therein shall expire.

3.Severance Payments.



4.Stock Option.The Company and Pitner acknowledge that prior to the Resignation Date Pitner held
options to purchase: (a) an aggregate of 258,500 shares of the Company's Common Stock at an exercise price of $.3125 per share, which are fully vested and (b) an aggregate of 381,834
shares of Common Stock at an exercise price of $.35 per share, none of which are currently vested (collectively, the "Options"). The Options are hereby amended to the extent necessary to provide that
they will be exercisable with respect to 258,500 shares at an exercise price of $.3125 per share and 87,959 shares at an exercise price of $.35 per share, respectively, in each case through
February 18, 2000, even though Pitner is no longer employed by the Company. All of the Options shall expire at the close of business on February 18, 2000. Pitner understands that to the
extent any of the Options are not exercised by August 18, 1999, such unexercised Options will no longer qualify as "incentive stock options" under Section 422 of the Internal Revenue
Code of 1986, as amended. Pitner acknowledges and agrees that, except as set forth in this Section 4, he does not hold any options or other rights to acquire any shares of capital stock of the
Company.

5.Return of Information and Assets.Pitner represents and warrants to the Company that he has returned
to the Company all originals and all copies of all property and assets of the Company created or obtained by Pitner as a result of or in the course of or in connection with his employment with the
Company which are in his possession or control, whether confidential or not, including, but not limited to all keys, credit and phone cards, pagers, telephones, computer equipment, computer files,
computer passwords, all customer information (including, but not limited to, lists, files, correspondence and notes), correspondence, notes, memoranda, notebooks, drawings and other documents
concerning any idea, product, apparatus, invention or process manufactured, used, developed, investigated, or marketed by the Company during the period of his employment. Pitner acknowledges that all
such materials and assets are, and will always remain, the exclusive property of the Company without time limitation.

6.Confidential Information.Pitner shall not directly or indirectly disclose or use at any time before
or after the effective date hereof any technology, trade secrets, know-how, or other information, knowledge or data owned, possessed or utilized by the Company or to which Pitner had
access in connection with his employment and which the Company deems confidential or proprietary or which Pitner has reason to believe is confidential or proprietary unless Pitner shall first have
obtained the written consent of the Company. Without limiting the generality of the foregoing, Pitner acknowledges that customer lists, customer orders, pricing information, financial results and
condition, financial and business forecasts, and business strategies are confidential information of the Company.

7.Release.Pitner agrees to give up and forever relinquish all claims which he has or may have against
the Company in exchange for the consideration set forth in this Agreement This is a full and complete release and waiver of any and all claims, complaints, causes of action or demands of whatever kind
Pitner may have against the Company for events occurring up to the date of his signature on this Agreement, whether known or unknown, foreseen or unforeseen, including, but not limited to, all claims
which relate in any way to Pitner's employment or termination of employment with the Company. Pitner will not bring any lawsuits, file any charges, complaints or notices, or make any other demands
against the Company based on any claim he may have against the Company. Pitner agrees that the consideration set forth above is valuable consideration above and beyond what is otherwise due him from
the Company.

Pitner
acknowledges and further agrees that by giving up all of his claims against the Company, he also gives up any claims he may have against its predecessors, successors,
subsidiaries and affiliates and any and all shareholders, creditors, officers, directors, employees and agents of the Company and all predecessors, successors, subsidiaries and affiliates arising out
of any actions, conduct, decisions, behavior,
omissions or events occurring up to the date hereof. This Release extends to all claims which Pitner may have for age discrimination or any other form of employment discrimination prohibited under
Title VII of the Federal Civil Bights Act of 1964, the Federal Age Discrimination in Employment Act. The Americans with Disabilities Act, The Minnesota Human Rights Act and all other state and federal
laws. It also extends to but is not limited to all claims that Pitner may have for wrongful discharge, breach of contract, breach of any express or implied promise, interference with contract,
misrepresentation, fraud, retaliation, breach of public policy, infliction of emotional distress, defamation, promissory estoppel, invasion of privacy, or any other theory, whether legal or equitable.

This
Release may be rescinded by Pitner within fifteen (15) calendar days of the date on which it is signed. To be effective, such rescission must be in writing and delivered
to the Company in the care of Evros Psiloyenis, President, Nicollet Process Engineering, Inc., 420 North Fifth Street, Suite 1040, Minneapolis, Minnesota 55401, either delivered by hand or
properly addressed, certified mail, return receipt requested, postmarked within the 15-day period.

8.Effect of Non-Execution or Rescission.Pitner agrees that if he does not execute this
Agreement or if he rescinds the Release, this Agreement is null and void and the Company has no obligations whatsoever under this Agreement.

9.Additional Representations and Covenants.



10.Miscellaneous.



The
parties have duly executed this Agreement as of the date first written above.

|                         |  | NICOLLET PROCESS ENGINEERING, INC.
|------------------------ |  | ----------------------------------
|Date: August 17, 1999    |  | By:                               
|Date: September 23, 1999 |  |                                   



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SEPARATION AND RELEASE AGREEMENT