ST. LOUIS, MO, September 2, 2010 – Insituform Technologies, Inc. (Nasdaq Global Select Market: INSU) announced today that it has been awarded a contract with a first year value of $5.9 million (US) by the City of Calgary, Alberta, Canada. Upon completion of the first year’s work, the City will have the option of renewing this contract for two more years.

Calgary awarded the project based on price and contractor qualifications after receiving proposals from prime contractors, previously identified by the City. 

“Insituform has successfully completed both wastewater and drinking water projects in Calgary since mid-1980s. This latest project will allow us to strengthen our relationship with Calgary as well as improve its underground infrastructure with minimal disruption to the community,” said Ken Foster, President, Insituform Technologies Limited, Canada. 

Each year of the contract, Insituform expects to complete approximately 90,000 feet of cured-in-place pipe (CIPP) rehabilitation on wastewater pipelines ranging from 8-inches to 48-inches in diameter. It is expected that its crews will utilize Insituform’s proprietary air inversion steam cure installation method that reduces energy and water usage by approximately 95 percent. 

About Insituform
Insituform Technologies, Inc. is a global leader in pipeline protection. Insituform provides proprietary technologies and services for rehabilitating sewer, water, energy and mining piping systems and the corrosion protection of industrial pipelines. More information about the Company can be found on its internet site
at www.insituform.com.

Forward-Looking Statements
The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. The Company makes forward-looking statements in this news release that represent the Company’s beliefs or expectations about future events or financial performance. These forward-looking statements are based on information currently available to the Company and on management’s beliefs, assumptions, estimates or projections and are not guarantees of future events or results. When used in this document, the words “anticipate,” “estimate,” “believe,” “plan,” “intend,” “may,” “will” and similar expressions are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements. Such statements are subject to known and unknown risks, uncertainties and assumptions, including those referred to in the “Risk Factors” section of the Company’s Annual Report on Form 10-K for the year ended December 31, 2009, as filed with the Securities and Exchange Commission on March 1, 2010 and in our subsequent quarterly reports on Form 10-Q. In light of these risks, uncertainties and assumptions, the forward-looking events may not occur. In addition, our actual results may vary materially from those anticipated, estimated, suggested or projected. Except as required by law, we do not assume a duty to update forward-looking statement, whether as a result of new information, future events or otherwise. Investors should, however, review additional disclosures made by the Company from time to time in its periodic filings with the Securities and Exchange Commission. Please use caution and do not place reliance on forward-looking statements. All forward looking-statements made by the Company in this news release are qualified by these cautionary statements.

Insituform® and the Insituform® logo are the registered and unregistered trademarks of Insituform Technologies, Inc. and its affiliates.

For more information, contact:
David F. Morris
Senior Vice President and Chief Administrative Officer
636-530-8000