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South Dakota law

Environmental Laws in South Dakota.

South Dakota environmental law combines federal programs (RCRA, CERCLA, CWA, CAA) with state implementation through the Department of Agriculture and Natural Resources (DANR). South Dakota's environmental practice is dominated by (1) agricultural water-quality issues (feedlots, nutrient management); (2) mining issues (Black Hills gold mining legacy and ongoing operations); (3) oil-and-gas regulation (Bakken Formation periphery in northwestern SD); and (4) water rights under prior-appropriation doctrine administered by the Water Management Board. Ellsworth Air Force Base-related environmental matters are also significant.

Last verified: 2026-04-17

State law

Key South Dakota Statutes

South Dakota Water Pollution ControlSDCL Chapter 34A-2

Authorizes DANR to administer NPDES permitting and state water-quality programs under delegated CWA authority.

South Dakota Air Pollution ControlSDCL Chapter 34A-1

Authorizes DANR to administer air-quality programs under delegated CAA authority.

Hazardous Waste ManagementSDCL Chapter 34A-11

Regulates hazardous waste under delegated RCRA authority.

Water Rights (Prior Appropriation)SDCL Chapter 46-1 et seq.

South Dakota follows prior-appropriation water law. Water Management Board administers water rights.

Mining RegulationSDCL Chapter 45-6B

South Dakota regulates mining (particularly in the Black Hills) through DANR and the Board of Minerals and Environment. Homestake Mine legacy and active mining operations produce substantial regulatory activity.

State law

Official Sources

Not Legal Advice

This page summarizes publicly available statutes and rules for informational purposes only. It does not constitute legal advice, and no attorney-client relationship is created by viewing this content. Laws change — always verify with the primary source or consult a licensed attorney in South Dakota.

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