What is GRIP?

The WRD Board of Directors established the Water Independence Now (WIN) initiative to end the District’s reliance on imported water for groundwater replenishment. WIN is comprised of a suite of projects including expansions to existing water treatment facilities, spreading operations, and stormwater capture facilities. The largest component of the WIN program is the Groundwater Reliability Improvement Project (GRIP). The purpose of GRIP is to fully eliminate the current demand for imported water by producing 21,000 acre feet annually from local alternative sources to replenish the Central Basin.


GRIP will purify approximately 10,000 acre feet (3.25 billion gallons) of tertiary treated (recycled) water annually to near-distilled levels through an advanced water treatment facility. Together, with another 11,000 acre feet (3.6 billion gallons) of recycled water, WRD will deliver 21,000 acre feet of water to the San Gabriel Coastal Spreading Grounds where it will percolate into the Central Basin.

The GRIP facility is being built on a 5.2 acre property in the City of Pico Rivera, adjacent to the San Gabriel River, allowing for direct delivery of purified recycled water to an existing pipeline leading into the spreading grounds.

For more detailed information, including construction schedule and recent news, head to


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Learn more about GRIP!

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Deconstruction of the existing structures on site was completed in spring 2016 and supporting projects including recharge well construction, brine disposal pipeline construction, and street improvements commenced shortly after. Environmental monitoring was conducted throughout the deconstruction process and will continue through all stages of construction.

PDF icon GRIP 2017 Timeline.pdf


Frequently Asked Questions
Questions about GRIP?

Feel free to contact us if you have additional questions!

PDF icon GRIP FAQ English and Spanish.pdf

Thank You Everyone!

"WRD's proposed GRIP program expansion is an innovative step in the right direction toward a sustainable water future for Los Angeles County where safe water recycling can play a key role." - Jonathan E. Fielding, M.D., M.P.H; Director and Health Officer at the County of Los Angeles Public Health

Support from Elected Officials

Alan Lowenthal, Member of Congress | Ted W. Lieu, Congressman, 33rd District | Bonnie Lowenthal, 17th District | Al Muratsuchi, Assemblymember, 66th District | Tony Mendoza, State Senator, 32nd District

Support from Municipalities

County of Los Angeles Public Health |City of Lakewood | City of Signal Hill | Long Beach Water | California Contract Citis Association | City of Pico Rivera

Support From Environmental Groups

Environmental Now | Protect Our Water and Environmental Rights (POWER) | The Nature Conservancy | Endangered Habitats League | Cabrillo Marine Aquarium | Mono Lake Committee | East Yard Communities for Environmental Justice | Urban Semillas |WaterReuse

Support from Business Groups

Bell Gardens Chamber of Commerce | Bell Gardens Chamber of Commerce, Carlos Cruz, Ex-director | Pico Rivera Chamber of Commerce | Commerce Industrial Council Chamber of Commerce | Los Angeles Metropolitan Hispanic Chambers of Commerce | Cambodian-American Chamber of Commerce, Edward Sana Tan, Chairman | Latin Business Association | Latino Business Association, Ruben Guerra, Chairman | CALASIAN-California Asia Pacific Chamber of Commerce | Los Angeles Area Chamber of Commerce | Long Beach Area Chamber of Commerce | Hawthorne Chamber of Commerce | Los Angeles Business Council | Los Angeles Latino Chamber of Commerce | Chinese Chamber of Commerce of Los Angeles | The Florence-Firestone/Walnut Park Chamber of Commerce | Santa Fe Springs Chamber of Commerce & Industrial League, Inc.

Service Organizations

Central American Relief Foundation | Grand Vision Foundation

GRIP Facility LEED Certification
News & Events
What's New?

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