Insituform Wins Additional $5.1 Million Contract in Clark County, Nev.

Insituform Technologies, Inc. (Nasdaq Global Select Market: INSU) announced May 27 that it has been awarded an additional $5.1 million contract for a sewer pipe rehabilitation project for Nevada’s Clark County Water Reclamation District. Insituform will begin work on this project in June 2009 and will rehabilitate approximately 23,000 feet of 15- to 48-inch diameter sewer pipes. This project is in addition to the Company’s recently announced contract award of $13 million from Clark County for the rehabilitation of 14,000 feet of large-diameter sewer pipes.

“Clark County Water Reclamation District understands the importance of asset management and the benefits of trenchless pipeline rehabilitation. Since 2005, Insituform has been awarded eight sewer rehabilitation projects with the County, and we are pleased to continue our ongoing relationship with them,” said Joe Lane, General Manager for Insituform’s West Region. “Our project management and execution teams will work with Clark County to ensure the successful completion of these projects.”

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Insituform, a pre-qualified contractor with the Clark County Water Reclamation District, will use its Insituform® cured-in-place-pipe (CIPP) technology for this project. The Insituform® CIPP process is an affordable solution to rehabilitate sanitary sewers, storm sewers and force mains and can reduce infiltration, restore structural integrity and increase flow capacity. Insituform® CIPP is a jointless pipe-within-a-pipe with the capability to rehabilitate pipes ranging in diameter from 6 to 96 inches.

About Insituform

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Insituform Technologies, Inc. is a leading worldwide provider of 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