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Water and Watersheds

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Public Comment Opportunities Drinking Water & Ground Water Laws & Regulations Wastewater (NPDES) Temperature Guidance Storm Water Tribal Water Programs Water Quality Watersheds Wetlands WaterTalk Newsletter Contacts and About Us

Drinking Water and Ground Water - EPA oversees implementation of the Safe Drinking Water Act, which is the national law safeguarding tap water in America.

Storm Water - EPA controls storm water and sewer overflow discharges through the National Pollutant Discharge Elimination System (NPDES) permit program.

Wastewater (NPDES) - The National Pollutant Discharge Elimination System (NPDES) permit program controls water pollution by regulating industrial, municipal, and other facilities that discharge pollutants into waters of the United States.

Watersheds - Watersheds are areas that drain to a common waterway, such as a stream, lake, estuary, wetland, aquifer, or even the ocean. A watershed approach is the most effective framework to address many of today's water resource challenges.

Water Quality - EPA studies and monitors the effects of water pollution and uses this information to set healthy emissions standards and enforce environmental regulations.

Wetlands - Wetlands are areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year.

Tribal Water Programs - EPA helps ensure clean and safe water for the 272 federally recognized tribes and Alaska Native Villages in Region 10 by providing technical, funding, and other assistance.

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URL: https://yosemite.epa.gov/R10/WATER.NSF/Homepage/Water

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