SOUTH DAKOTA Department of
Environment & Natural Resources

Protecting South Dakota's Tomorrow...Today!
Joe Foss Building
523 E Capitol
Pierre, SD 57501
Field Offices
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Surface Water

Photograph of a creek in the Black Hills of South Dakota.


401 Certification

Section 401 of the federal Clean Water Act requires states to review projects and federal permits to ensure they will not impact the stream quality or violate our Surface Water Quality Standards. The South Dakota Department of Environment and Natural Resources conducts this review in South Dakota and issues a 401 certification. For more information, contact Patrick Snyder at (605) 773-3351.