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More than a decade after California passed the Human Right to Water ... with high nitrate contamination in drinking water wells is widespread ... Protection Agency's limit since 2009, with an ...
Set by the California Department of Public Health in 1989, the maximum contaminant level for nitrates, in CCR §63341, is 45 milligrams per liter (mg/L) for nitrate as NO3 (equivalent to 10 mg/L for nitrate as nitrogen or “N”); 10 mg/L for nitrate plus nitrite as N; and 1 mg/L for nitrite as N. Currently, there is a secondary maximum ...
Maximum contaminant levels (MCLs) are standards that are set by the United States Environmental Protection Agency (EPA) for drinking water quality. [1] [2] An MCL is the legal threshold limit on the amount of a substance that is allowed in public water systems under the Safe Drinking Water Act (SDWA).
Drinking water quality standards describes the quality parameters set for drinking water. Water may contain many harmful constituents, yet there are no universally recognized and accepted international standards for drinking water. Even where standards do exist, the permitted concentration of individual constituents may vary by as much as ten ...
California has set a limit for the toxic heavy metal hexavalent chromium in drinking water. Advocates have called for a stricter limit, warning of health risks.
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Community members and health advocates worry California’s limit doesn’t do enough to protect public health from the metal. They want the state to adopt a drinking water limit closer to the public health goal of 0.02 parts per billion, the level scientists have said does not pose significant health risks.
In 2016, more than 5,000 drinking water systems were found to be in violation of the lead and copper rule. [56] Congress passed the Reduction of Lead in Drinking Water Act in 2011. This amendment to the SDWA, effective in 2014, tightened the definition of "lead-free" plumbing fixtures and fittings. [57]