OCWD Management Area
6.3 RECYCLED WATER PRODUCTION
6.3.1 Overview
The Groundwater Replenishment System (GWRS) is a joint project built by OCWD and OC San that began operating in 2008. Secondary treated wastewater that otherwise would be discharged to the Pacific Ocean is purified using a three-step process to produce high-quality water used to control seawater intrusion and recharge the basin. As shown on Figure 6-1, the system includes four major components (1) the Advanced Water Purification Facility (AWPF), (2) the Talbert Seawater Intrusion Barrier, (3) Mid-Basin Injection wells, and (4) four dedicated recharge basins.
Figure 6-1: Groundwater Replenishment System
6.4 FINAL EXPANSION
The GWRS Final Expansion (GWRSFE) Project began in 2019 with a budget of $310 million. It is the third and final phase of the project to build-out capacity of the GWRS facility that treats
BASIN 8-1 ALTERNATIVE 2022 UPDATE
Water Resource Management Programs 6-5
Appendix F - 135
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