California drinking water map shows facilities at risk of failing
Water systems located in nearly every single California county are at risk of failing, according to a map created by Newsweek using data from the California State Water Resources Control Board. The board released its annual report in June as municipalities around the nation have considered improving their water-treatment systems to counteract cyberattacks or to meet new requirements from the Environmental Protection Agency (EPA) about the levels of per- and poly-fluoroalkyl substances, known as PFAS, in the water supply. … A map of the at-risk drinking water systems shows that they are impacted throughout the state, with some of the highest concentrations of impacted systems in Tulare, Kern and Los Angeles Counties. The only counties without an at-risk water system were Lassen, Modoc and San Francisco.