The Groundwater Replenishment System

This GWRS overview video covers the history, benefits, and process of the Groundwater Replenishment System (GWRS), the world’s largest water purification system for indirect potable reuse. For an in depth look at the GWRS purification process, please view our on-demand technical tour:    • Groundwater Replenishment System Virtual T...  . For general information on the GWRS, please visit https://www.ocwd.com/gwrs.