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  2. Drinking water quality standards - Wikipedia

    en.wikipedia.org/wiki/Drinking_water_quality...

    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 ...

  3. Drinking water quality in the United States - Wikipedia

    en.wikipedia.org/wiki/Drinking_water_quality_in...

    [16] [17] There are no federal regulations covering private drinking water wells, although some state and local governments have issued rules for these wells. [18] [19] EPA enters into primary enforcement authority (primacy) agreements with state governments, so in most states EPA does not directly enforce the SDWA. State rules can be different ...

  4. Extreme weather is ramping up toxic nitrate pollution in ...

    www.aol.com/extreme-weather-ramping-toxic...

    As they monitored these shifts, the researchers discovered that nitrate concentrations in shallow groundwater exceeded the Environmental Protection Agency’s drinking water safety thresholds.

  5. Nitrate - Wikipedia

    en.wikipedia.org/wiki/Nitrate

    Through the Safe Drinking Water Act, the United States Environmental Protection Agency has set a maximum contaminant level of 10 mg/L or 10 ppm of nitrate in drinking water. [ 18 ] An acceptable daily intake (ADI) for nitrate ions was established in the range of 0–3.7 mg (kg body weight) −1 day −1 by the Joint FAO/WHO Expert Committee on ...

  6. EPA to limit toxic 'forever chemicals' in drinking water

    www.aol.com/news/epa-limit-toxic-forever...

    The Environmental Protection Agency on Tuesday proposed the first federal limits on harmful “forever chemicals” in drinking water, a long-awaited protection the agency said will save thousands ...

  7. Maximum contaminant level - Wikipedia

    en.wikipedia.org/wiki/Maximum_Contaminant_Level

    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).

  8. New EPA rules to limit PFAS in drinking water: Worcester is ...

    www.aol.com/epa-rules-limit-pfas-drinking...

    The EPA’s new standard is the first ever nationally for PFAS in drinking water. It sets limits of 4 parts per trillion for PFOA and PFOS and 10 parts per trillion for PFNA, PFHxS and “GenX ...

  9. Safe Drinking Water Act - Wikipedia

    en.wikipedia.org/wiki/Safe_Drinking_Water_Act

    The Safe Drinking Water Act (SDWA) is the primary federal law in the United States intended to ensure safe drinking water for the public. [3] Pursuant to the act, the Environmental Protection Agency (EPA) is required to set standards for drinking water quality and oversee all states, localities, and water suppliers that implement the standards.

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