Water Quality Criteria
The Clean Water Act requires EPA to develop criteria for ambient water quality that accurately reflect the latest scientific knowledge on the impacts of pollutants on human health and the environment. Background Information on Water Quality Criteria.
Current Water Quality Criteria Tables
Water Quality Criteria and Technical Support Documents Under Development
EPA is currently developing or revising the following documents:- Draft Field-Based Methods for Developing Aquatic Life Criteria for Specific Conductivity
- Draft Human Health Recreational Ambient Water Quality Criteria and/or Swimming Advisories for Microcystins and Cylindrospermopsin
- Draft Technical Support Materials for Aquatic Life Criterion for Selenium - Freshwater 2016
- Draft Biotic Ligand Model Missing Parameters Technical Support Document
- Draft Estuarine/Marine Copper Aquatic Life Criteria
