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Safe Drinking Water Act (SDWA)

Protecting America’s drinking water is a top priority for EPA. EPA has established protective drinking water standards for more than 90 contaminants, including drinking water regulations issued since the 1996 amendments to the Safe Drinking Water Act that strengthen public health protection.  Over 92 percent of the population supplied by community water systems receives drinking water that meets all health-based standards all of the time.

Basic SDWA Information

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  • SDWA Overview
  • Read the Statute (As Amended Through P.L. 116-92, Enacted December 20, 2019)
  • Read the Regulations (40 CFR 141)

Developing Regulations

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  • Evaluation and Rulemaking Process
  • Economic Analysis
  • Regulations Under Development or Review

Current Regulations

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  • National Primary Drinking Water Regulations
  • Secondary Drinking Water Regulations
  • Drinking Water Rules
  • Drinking Water Rule Summaries
  • Existing Flexibilities under the Safe Drinking Water Act

Additional Information

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  • Basic Drinking Water Information 
  • Analytical Methods
  • Annual Water Quality Reports
  • National Drinking Water Advisory Council (NDWAC)
  • Non-Regulatory Health-Based Drinking Water Levels

Learn more about EPA's Ground Water and Drinking Water Program

Have a question? Contact the EPA's Office of Ground Water and Drinking Water

Contact Us to ask a question, provide feedback, or report a problem.
Last updated on July 14, 2022
United States Environmental Protection Agency

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