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Sweetwater Authority reports PFAS detections; trustees press for mitigation steps for Chula Vista schools
Summary
Sweetwater Authority staff told the Chula Vista Elementary School District board that routine monitoring has detected PFAS in treated water linked to Sweetwater Reservoir and that the findings have triggered required public notices and further testing, prompting trustees to press the agency and district staff for short-term mitigation at schools.
Sweetwater Authority staff told the Chula Vista Elementary School District board that routine monitoring has detected per- and polyfluoroalkyl substances (PFAS) in water tied to the Sweetwater Reservoir and that the findings require public notices and more frequent testing while state and federal regulations take effect.
Roberto Llanos, assistant general manager for Sweetwater Authority, and Justin Bressil, director of water quality, briefed the board on the agency''s testing program and on steps under way to understand and, eventually, treat PFAS in the system. Llanos said Sweetwater''s first round of monitoring in late 2024 found one PFAS (PFOA) at 9.4 parts per trillion (ppt), above California''s notification level; a subsequent quarter showed PFOA at 11.4 ppt, briefly exceeding the state''s response level before a confirming sample fell below that threshold. Sweetwater also detected PFOS in both quarters at levels above the state''s notification threshold, the presenters said.
The board and public speakers raised concerns about…
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