1. Water Quality Taste & Odor Issues from Algal Bloom – Appears to Have Passed The district experienced elevated organic compounds (notably geosmin) in water supplied via the South Bay Aqueduct to Treatment Plant #2, caused by an annual algal bloom originating in the Sacramento-San Joaquin Delta. While the water remained safe to drink (these were secondary drinking water standards related to taste and odor, not primary health standards), some customers noticed unpleasant taste and odor. Staff reduced treatment plant flow rates, increased ozone treatment, and coordinated with neighboring agencies (Zone 7, Santa Clara Valley Water District) who experienced the same issues. The episode appears to have passed for now, and the district continues active monitoring.
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