Environmental Rules in South Dakota (2026)

9 rules on the books across South Dakota, 2 cities and counties. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

Stormwater Management

Requirements for managing rainwater runoff on your property, including retention basins, permeable surfaces, and drainage plans.

South Dakota administers a delegated NPDES stormwater program under SDCL Chapter 34A-2 (Water Pollution Control)…

Any new subdivision in unincorporated Minnehaha County must include a drainage plan under Ordinance MC23-93, Section…

Sioux Falls requires owners of privately built stormwater best management practices, like detention ponds and filters…

Rules to prevent soil erosion during construction and landscaping, including required sediment barriers and ground cover standards.

South Dakota does not impose a uniform statewide residential grading or drainage code. Grading, lot drainage, and…

Minnehaha County requires an erosion control plan for every subdivision development site under Ordinance MC23-93…

Sioux Falls requires a grading permit from the city engineer before any excavation or fill, separate from a building…

Building requirements for properties in FEMA flood zones, including elevation standards, flood insurance mandates, and construction limits.

Any development, filling, or grading inside a Sioux Falls special flood hazard area requires a floodplain development…

FEMA NFIP minimum base flood elevation (BFE) construction standards for properties in mapped flood zones, including freeboard requirements above BFE.

In flood hazard areas of unincorporated Minnehaha County, builders must document the as-built elevation of a…

New and substantially improved buildings in Sioux Falls flood hazard areas must have the lowest floor elevated two feet…