Extending the Useful Life of a 15 MGD Rio Grande Ultrafiltration Facility

The City of Eagle Pass, Texas draws its water supply from the Rio Grande treating the river water through a 15 MGD ultrafiltration treatment plant. After 10 years of operations with 35m 2 ultrafiltration membranes, the City is planning to replace its membranes with a newer 40m 2 membrane model. This presentation will provide an update on Eagle Pass’s experience through the validation process, including the regulatory approach followed to obtaining TCEQ approval, direct integrity test methods (volume-based vs. pressure decay), demonstration testing, lessons learned, design of the retrofit, and operational implications of the membrane upgrade.