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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. Alkalinity - Wikipedia

   en.wikipedia.org/wiki/Alkalinity

   Alkalinity (from Arabic: القلوية, romanized: al-qaly, lit. 'ashes of the saltwort') [1] is the capacity of water to resist acidification. [2] It should not be confused with basicity, which is an absolute measurement on the pH scale. Alkalinity is the strength of a buffer solution composed of weak acids and their conjugate bases.

4. 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).

5. EPA sets new, strict limits on forever chemicals in drinking ...

   www.aol.com/epa-sets-strict-limits-forever...

   The Environmental Protection Agency is setting the first-ever limits for some forever chemicals in drinking water, EPA Administrator Michael Regan announced Wednesday morning in Fayetteville.

6. Drinking water quality in the United States - Wikipedia

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

   Despite improvements in water quality regulations, disparities in access to clean drinking water persist in marginalized communities. A 2017 study by the Natural Resources Defense Council (NRDC) highlighted that rural areas and low-income neighborhoods are disproportionately affected by water contamination, often due to aging infrastructure and ...

7. Water quality - Wikipedia

   en.wikipedia.org/wiki/Water_quality

   The International Organization for Standardization (ISO) published [when?] regulation of water quality in the section of ICS 13.060, [57] ranging from water sampling, drinking water, industrial class water, sewage, and examination of water for chemical, physical or biological properties. ICS 91.140.60 covers the standards of water supply systems.