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  2. Maximum acceptable toxicant concentration - Wikipedia

    en.wikipedia.org/wiki/Maximum_Acceptable...

    The US EPA is the governmental organization responsible for writing and enforcing environmental regulations passed by Congress. The Clean Water Act was passed in 1972. Section 304(a)(1) of the Clean Water Act is the Water Quality Criteria (WQC) developed for the protection of aquatic life and human health. [4]

  3. Clean Water Act - Wikipedia

    en.wikipedia.org/wiki/Clean_Water_Act

    States and federally recognized Indigenous Nations protect their designated areas by adopting water quality criteria that the EPA publishes under CWA section 304(a), modifying the criteria to reflect site-specific conditions or adopting criteria based on other scientifically defensible methods.

  4. Effluent guidelines - Wikipedia

    en.wikipedia.org/wiki/Effluent_guidelines

    The United States Environmental Protection Agency (EPA) issues Effluent Guideline regulations for categories of industrial sources of water pollution under Title III of the Clean Water Act (CWA). [1] The standards are technology-based, i.e. they are based on the performance of treatment and control technologies (e.g., Best Available Technology ).

  5. New Source Performance Standards - Wikipedia

    en.wikipedia.org/wiki/New_Source_Performance...

    New Source Performance Standards (NSPS) are pollution control standards issued by the United States Environmental Protection Agency (EPA). The term is used in the Clean Air Act Extension of 1970 (CAA) to refer to air pollution emission standards, and in the Clean Water Act (CWA) referring to standards for water pollution discharges of industrial wastewater to surface waters.

  6. Wastewater quality indicators - Wikipedia

    en.wikipedia.org/wiki/Wastewater_quality_indicators

    Wastewater quality indicators are laboratory test methodologies to assess suitability of wastewater for disposal, treatment or reuse. The main parameters in sewage that are measured to assess the sewage strength or quality as well as treatment options include: solids, indicators of organic matter, nitrogen, phosphorus, indicators of fecal ...

  7. Steak has many nutrients, but here's why you should avoid ...

    www.aol.com/steak-many-nutrients-heres-why...

    Extra rare is another temperature category and means a steak is only cooked to 115 degrees - which isn't as worrisome as eating raw beef, but is still far from being considered safe to eat.

  8. Bitter cold winter temperatures are on their way out, but ...

    www.aol.com/bitter-cold-winter-temperatures-way...

    Nasty weather in Northwest. Increasingly unsettled weather is expected for the Pacific Northwest through the weekend, the weather service said. Rain showers and some high elevation snow will ...

  9. Water quality - Wikipedia

    en.wikipedia.org/wiki/Water_quality

    According to the EPA, water quality laws generally specify protection of fisheries and recreational use and require, as a minimum, retention of current quality standards. [18] In some locations, desired water quality conditions include high dissolved oxygen concentrations, low chlorophyll-a concentrations, and high water clarity. [19]