EPA Non-Regulatory Health-Based Drinking Water Levels

EPA is authorized to develop health advisories and benchmarks that provide information and a non-regulatory human health-based level of protection from drinking water contaminants that are not regulated under the Safe Drinking Water Act (SDWA).

• Learn about Drinking Water Health Advisories (HAs)
• Learn about Human Health Benchmarks

Additional Drinking Water Health Effects Information Developed by EPA’s Office of Water

Health Effects Support Documents

• Boron
• Dacthal and Dacthal Degradates
• 2,4- and 2,6- Dinitrotoluene
• Manganese
• Oxamyl (pdf) (118.08 KB)
• Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonate (PFOS)
• Sodium
• Sulfate
• 1,1,2,2-tetrachloroethane
• Cyanobacterial Toxin Anatoxin-A (June 2015, EPA 820-R-15-104)
• Acanthamoeba (May 2003, EPA 822-R-03-012)

Human Health Toxicity Assessments

• Human Health Toxicity Assessment for Perfluorooctanoic Acid (PFOA)
• Human Health Toxicity Assessment for Perfluorooctane Sulfonic Acid (PFOS)
• Human Health Toxicity Assessment for GenX Chemicals
• Human Health Toxicity Assessment for PFBS
• Fluoride Risk Assessment and Relative Source Contribution