This project will investigate the durability and reliability of large diameter (16 in. and larger) HDPE water mains and fittings as a solution to the water infrastructure. The below national survey is critical as a first step to achieve this objective, since it will provide valuable information regarding the durability and reliability of 16-in. and larger HDPE water pipes and fittings.

This survey contains 15 questions and is expected to take less than 30 minutes and we request you to complete at your earliest convenience. Your answers are voluntary and you are free to answer any question or to stop participating at any time. Your name and information will be strictly confidential to the maximum extent allowable by law and your responses will be used in aggregate for the purpose of this research.

Your time and efforts in completing this survey would be greatly appreciated. To show our appreciation, we will send you a copy of the research findings upon completion scheduled for Summer 2014.

If you have any questions or concerns, please feel free to contact CUIRE at 817-272-9177 or Divyashree, CUIRE Graduate Research Assistant, at or the principal investigator of this project, Dr. Mohammad Najafi at

1. Contact Information

2. *Do you have large diameter (16 in. and larger) HDPE water pipe in use?