California wants to slash the allowable levels in drinking water for two “forever chemical” compounds, immediately prompting agencies supplying water to 2.5 million residents in Orange County to remove a fifth of their wells from service.
The State Water Resources Control board Thursday said it planned to dramatically lower its response levels for perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), though actual drinking water standards are still years away.
The response levels require water suppliers to install treatment, and remove wells from service if they exceed the thresholds. Notifying customers is required if districts plan to keep wells in service without treatment for an extended period.
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