Science

Caution signs hang on a fence surrounding a Hinkley, Calif., farm that uses irrigation water polluted with chromium, a carcinogen. California health officials are adopting the nation's first-ever drinking water standard for hexavalent chromium, which is found in water supplies across the state.

Caution signs hang on a fence surrounding a Hinkley, Calif., farm that uses irrigation water polluted with chromium, a carcinogen. California health officials are adopting the nation's first-ever drinking water standard for hexavalent chromium, which is found in water supplies across the state. Robert Gauthier/Los Angeles Times
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