Five Years of 100% Local Reliability

Since 2013, the award-winning Mesa Water Reliability Facility (MWRF) allows Mesa Water to serve you 100% local, reliable groundwater—a unique achievement in Orange County.

Using state-of-the-art nanofiltration technology, the MWRF removes the amber tint from water pumped from a deep underground aquifer. The tint is caused by remnants of plants and trees, including redwoods, which natural forces pushed underground eons ago. The amber water is high quality, soft, and drinkable as is…the tint is removed for aesthetics.

In 2011, $24.5 million was invested on MWRF improvements to fulfill several Mesa Water Boards of Directors’ longstanding vision of providing 100% local groundwater, which is more reliable and less costly than imported water. To date, the MWRF has produced over 8.4 billion gallons of water and saved us $11.4 million in water supply costs.