Most Americans get their drinking water from large scale municipal water systems that rely on surface water sources such as rivers, lakes and reservoirs. However, millions of Americans depend on private water sources such as wells and aquifers. In either case, the United States enjoys one of the cleanest drinking water supplies in the world. The EPA regulates the quality of the nation's drinking water by issuing and enforcing safe drinking water standards. EPA also protects the nation's drinking water by safeguarding our watersheds and regulating the release of pollutants into the environment. In partnership with local authorities and community groups, the Agency encourages water conservation. EPA also works with these partners to develop contingency plans for source contamination and other water emergencies.

Recommended EPA Web pages

• Ground Water and Drinking Water
  This is the home page for the Office of Ground Water and Drinking Water and provides information about the programs in place to protect public health by regulating ground and drinking water.
• Local Drinking Water Information
  Provides local drinking water information for each state.
• Drinking Water and Health: What You Need To Know
  This publications addresses locating information about your drinking water system.

Drinking Water
Drinking Water System, Protection

Ground Water
Discharge, Hydrogeology, Protection, Runoff, Wells

Storm Water
Combined Sewer Overflows (CSOs), Industrial Storm Water, Permits, Sanitary Sewer Overflows (SSOs), Wet Weather Programs

Surface Water
Dumping, Marine Debris

Wastewater
Animal Feeding Operations (AFOs), Biosolids, Discharges, Effluent Guidelines, Effluents, Industrial Wastewater, Municipal Wastewater Treatment, National Pollutant Discharge Elimination System (NPDES), Permits, Publicly Owned Treatment Works (POTWs), Standards, Treatment, Wastewater Systems

Water Infrastructure

Water Pollution
Community Involvement, Cost Benefit Analysis, Data, Nonpoint Sources, Point Sources, Reporting, Testing, Transboundary Pollution

Water Pollution Control
Pretreatment, Remediation, Trading, Wastewater Treatment

Water Pollution Effects
Economic Effects, Environmental Effects, Health Effects

Water Pollution Legal Aspects
Compliance, Enforcement, Guidance, Legislation, Permits, Public Comment, Regulations, Standards, Total Maximum Daily Loads (TMDLs)

Water Quality Monitoring
Bioassessment, Criteria, Health Advisories, Models, Standards