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Chino Hills officials say new 1,2,3‑TCP treatment plant near completion; startup delayed by state meter requirement
Summary
City staff said the 1,2,3‑TCP treatment plant on Eucalyptus has reached substantial construction completion, will treat other contaminants including PFOS/PFOA, and requires a metering/blending station and final state sign‑off before going online.
Chino Hills officials told the City Council on June 10 that construction of a new water treatment plant to remove the contaminant 1,2,3‑TCP from local groundwater is substantially complete, but the city must build a metering station and receive a state operating permit before the facility can begin delivering treated water.
Utilities Manager Mark Wiley said the plant was built after the state lowered the maximum contaminant level for 1,2,3‑TCP, forcing the city to take several wells offline. "When this plant is fully operational we suspect we'll get about 2,000 gallons a minute out of it or about 3,000,000 gallons a day, right around there," Wiley told the council. He said returning the wells to service will reduce reliance on imported water and increase supply redundancy.
Senior Engineer Faye Rama and…
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