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  2. Water quality - Wikipedia

    en.wikipedia.org/wiki/Water_quality

    Environmental water quality, also called ambient water quality, relates to water bodies such as lakes, rivers, and oceans. [16] Water quality standards for surface ...

  3. Drinking water quality in the United States - Wikipedia

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

    The Safe Drinking Water Act requires the US EPA to set standards for drinking water quality in public water systems (entities that provide water for human consumption to at least 25 people for at least 60 days a year). [3] Enforcement of the standards is mostly carried out by state health agencies. [4]

  4. Water pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_pollution_in_the...

    Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and manufacturing industries—although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]

  5. Water pollution - Wikipedia

    en.wikipedia.org/wiki/Water_pollution

    Water pollution (or aquatic pollution) is the contamination of water bodies, with a negative impact on their uses. [1]: 6 It is usually a result of human activities. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants mix with these water bodies. Contaminants can come from ...

  6. Freshwater environmental quality parameters - Wikipedia

    en.wikipedia.org/wiki/Freshwater_environmental...

    Freshwater environmental quality parameters are those chemical, physical and biological parameters that can be used to characterise a freshwater body. Because almost all water bodies are dynamic in their composition, the relevant quality parameters are typically expressed as a range of expected concentrations.

  7. Water quality law - Wikipedia

    en.wikipedia.org/wiki/Water_quality_law

    Water quality laws govern the protection of water resources for human health and the environment. Water quality laws are legal standards or requirements governing water quality, that is, the concentrations of water pollutants in some regulated volume of water. Such standards are generally expressed as levels of a specific water pollutants ...

  8. Environmental quality - Wikipedia

    en.wikipedia.org/wiki/Environmental_quality

    The agency with the lead implementation responsibility for most major federal environmental laws (e.g. Clean Air Act, Clean Water Act) is the US Environmental Protection Agency (EPA). [4] Other federal agencies with significant oversight roles include the Council on Environmental Quality, Department of the Interior and the Army Corps of Engineers.

  9. Drinking water quality legislation of the United States

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

    The Environmental Conservation Code [24] regulates the sources and districting of water supply. Other laws that govern the operation of water supply, such as the Transportation Corporation Law, Town Law, and the Public Service Law, affect water quality indirectly.

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