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Hilliard, Ohio – July 24, 2008: The Florida Department of Transportation (FDOT) recently approved N-12® corrugated HDPE pipe, manufactured by Advanced Drainage Systems, Inc. (ADS), for 100-year service life applications. This designation approves N-12 pipe for use in most FDOT applications. To date, ADS is the only HDPE pipe manufacturer in the underground drainage industry to receive the 100-year service life approval for its products. Utilizing the most extensive testing protocol in the pipe industry, FDOT granted approval for 18" (450mm) through 48" (1200mm) ADS N-12 pipe under the "Class II" 100-year service life designation.

"The test results in Florida prove there is an increasing level of confidence in the use and performance of HDPE pipe," Joe Chlapaty, Chairman and Chief Executive Officer of ADS said. "Our goal is to deliver a product that will still be in the ground for generations to come and performing its inted purpose. We've always been confident that our products will last forever, and these tests simply serve as additional evidence to that fact. As with all ADS products, our customers can be assured that our HDPE pipe is providing a high quality, value enhanced solution to meet their underground drainage needs."

To determine the expected service life of the corrugated HDPE drainage pipe, FDOT adopted a test protocol specification that is the most stringent and comprehensive in the pipe industry. Incorporating projected long-term buried stress and environmental conditions, the test protocol utilizes the Rate Process Method (RPM) and Oxidation Induction Time (OIT) testing to measure stress crack resistance and product durability. These methods are well-established and widely used in the pressure pipe industry as a means to predict the long-term performance of thermoplastic pipe.

Introduced in 1987, N-12 smooth interior dual wall pipe meets strict quality control from raw materials to production - conforming to ASTM and AASHTO standards - and is specified nationwide in storm and sanitary sewers, agricultural drainage, road and highway construction, residential and commercial development as well as turf and recreational applications.

About Advanced Drainage Systems, Inc.
Advanced Drainage Systems, Inc. (ADS) is the world's largest producer of HDPE corrugated plastic pipe. Founded in 1966, it serves the storm water drainage and on-site industry through a global network of 42 domestic and international manufacturing plants and more than 30 distribution centers. In addition to its flagship N-12 pipe, the company offers a complete line of fittings and other accessories including StormTech® storm water chambers, Nyloplast® drainage structures and various geotextiles. For more information about ADS, visit

For more information, please contact:
Ms. Tori Durliat
Director of Marketing, ADS
401 Olive Street, Findlay, Ohio 45840
Phone: 1-800-537-9520
Fax: 1-419-424-8302