Philadelphia Awards Insituform $6.0 Million Contract to Rehabilitate Sewer Pipes and Preserve Tacony Creek Park
Project Will Fix Pipes With Little Disruption to Park’s Urban Meadows

SAINT LOUIS, MO, August 27, 2009– The Philadelphia Water Department (“PWD”) has awarded Insituform Technologies, Inc. (Nasdaq Global Select Market: INSU) a $6.0 million contract to rehabilitate approximately 10,000 feet of sanitary sewer pipes that run beneath the urban meadows of one of Philadelphia’s largest parks. Insituform’s leading technology, cured-in-place pipe (CIPP), will allow the company to do this work and protect the park from digging and disruption.

The project will rehabilitate 12-inch to 60-inch diameter sanitary sewers that primarily lie underneath Tacony Creek Park, which includes 302 acres of meadows, wetlands, green space and 2.5 miles of creekside trails inside the Olney Neighborhood on the north side of Philadelphia. Work on this project, with pipes estimated to be over 100-years old, will begin in November 2009 and take approximately one year to complete.

Philadelphia has a long-standing tradition of being a leader in water technologies. In fact, Philadelphia created the nation’s first water system in the 19th century. Jeff Twardzik, Assistant Engineering Supervisor for the Philadelphia Water Department said “This process allows us to stay at the forefront of technology and completely rehabilitate the sewer without disrupting the local ecosystem and park areas. The project will also be running concurrently with a stream restoration project and a combined sewer overflow project in the same area. The Insituform process allows us to work alongside these important projects without interruption. PWD is excited to be working with Insituform again.”

The Insituform® CIPP process is Insituform’s core technology and an affordable solution used to reduce infiltration, restore structural integrity and increase flow capacity. A pre-qualified contractor, Insituform has worked with Philadelphia Water on various projects for over twenty years. As the general contractor on this project, Insituform will utilize local minority contractors for various aspects of this project.