WEBINAR: GWRS Final Expansion Project Update: An OCWA Webinar

January 20, 2021 @ 12:30 pm – 1:00 pm

The $310 million Groundwater Replenishment System (GWRS) Final Expansion Project will bring the Orange County Water District’s Advanced Water Purification Facility to its build-out treatment capacity of 130 million gallons per day.

To complete this final expansion, the treatment capacities of the microfiltration system, the reverse osmosis system, and the ultraviolet light systems will need to be increased to treat secondary effluent from Orange County Sanitation District (OCSD). In addition, a new pump station, flow equalization tanks, and a pipeline will need to be constructed at OCSD’s Plant No. 2 in Huntington Beach.

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