The Orange County Water District (OCWD; the District) and the City of Tustin celebrated the dedication of a new PFAS treatment plant, marking a major milestone in ensuring safe and reliable water for Tustin residents and businesses.

The dedication ceremony brought together local, state and federal representatives to recognize the proactive actions of both OCWD and the City of Tustin in addressing PFAS, a group of manufactured chemicals increasingly found in water sources across the country, including the Orange County Groundwater Basin. The new treatment system, implemented at the existing Main Street Water Treatment Plant, uses ion exchange technology to treat up to 6,400 gallons of groundwater per minute. The centralized plant is fed by four offsite wells connected through approximately 2.5 miles of conveyance pipeline.

“This state-of-the-art PFAS treatment plant is a critical investment in our city’s water future,” said Tustin Mayor Austin Lumbard. “By removing PFAS from local groundwater, we help ensure that water delivered to residents and businesses is exceptional and continues to meet all state and federal drinking water standards.”

Since 2019, OCWD has taken the lead in addressing PFAS, in partnership with its 19 cities and retail water districts, to remove them from the groundwater basin, which supplies up to 85% of the water to 2.5 million people in north and central Orange County. The District is funding design and construction costs, along with a portion of operational and maintenance costs for treatment facilities like this one.

“OCWD is proud to support the City of Tustin and our other partners in the construction of treatment facilities that safeguard public health,” said OCWD President Denis R. Bilodeau, P.E. “Tackling PFAS contamination head-on reflects our long-standing commitment to water quality, innovation and regional collaboration.”

The City of Tustin PFAS treatment facility was partially funded by a $10 million grant from the State Water Resources Control Board through the Bipartisan Infrastructure Law and a $5 million Community Grant from the U.S. Environmental Protection Agency.

For more information on OCWD’s PFAS treatment program, visit the PFAS education center.

The Orange County Water District manages the local groundwater basin serving 2.5 million people in north and central Orange County. For more information about OCWD, please visit www.ocwd.com and follow @OCWaterDistrict on social media.