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2015 EPA Updated Ambient Water Quality Criteria for the Protection of Human Health

EPA updated its national recommended water quality criteria for human health for 94 chemical pollutants to reflect the latest scientific information and EPA policies, including updated fish consumption rate, body weight, drinking water intake, health toxicity values, bioaccumulation factors, and relative source contributions. EPA accepted written comments from the public on the draft updated human health criteria from May to August 2014 and prepared responses to those comments. EPA water quality criteria provide recommendations to states and tribes authorized to establish water quality standards under the Clean Water Act.

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