South Dakota Drinking Water Violations

715Water Systems
7,050Total Violations
1,324Health-Based

South Dakota has 715 active public water systems regulated under the EPA's Safe Drinking Water Act. Across these systems, there have been 1,324 health-based violations out of 7,050 total violations recorded. Currently, 17 water systems have unresolved health-based violations.

The most frequently cited health-based contaminants in South Dakota are Unknown, Unknown, and Unknown. Health-based violations mean a water system exceeded an EPA maximum contaminant level (MCL) or failed required treatment standards.

Browse the counties below to find specific water systems, or search by address or ZIP code to find your water provider.

Counties

CountyWater SystemsTotal ViolationsHealth-Based
Lawrence County 72 746 330
Pennington County 156 1,042 252
Meade County 55 283 109
Custer County 50 294 34
Brown County 20 204 34
Yankton County 9 106 34
Roberts County 11 247 29
Fall River County 13 275 27
Clark County 6 159 25
Charles Mix County 6 45 21
Butte County 8 112 20
Codington County 5 85 19
Minnehaha County 14 40 19
Spink County 10 101 16
Brookings County 11 263 15
Corson County 3 61 12
Bon Homme County 6 52 12
Moody County 6 293 11
Turner County 6 42 11
Walworth County 3 44 10
Hamlin County 5 19 10
Sanborn County 5 241 9
Mccook County 5 26 9
Kingsbury County 6 25 9
Douglas County 5 72 8
Marshall County 7 55 8
Day County 6 37 8
Brule County 3 27 8
Faulk County 6 27 8
Ziebach County 1 14 8
Hutchinson County 4 30 7
Edmunds County 7 23 7
Lincoln County 6 20 7
Mcpherson County 2 18 7
Hanson County 2 9 7
Grant County 4 48 6
Tripp County 2 10 6
Dewey County 4 134 5
Miner County 2 37 5
Shannon County 2 46 4
Beadle County 6 44 4
Potter County 4 42 4
Haakon County 2 16 4
Gregory County 4 10 4
Perkins County 3 22 3
Union County 8 21 3
Jackson County 2 18 3
Campbell County 2 12 3
Aurora County 3 9 3
Davison County 3 7 3
Deuel County 2 6 3
Clay County 2 5 3
Lake County 5 83 2
Jerauld County 2 6 2
Mellette County 1 6 2
Hyde County 1 6 1
Lyman County 3 5 1
Bennett County 1 1 1
Hughes County 5 4 0
Sully County 1 3 0
Jones County 1 2 0
Buffalo County 1 1 0
Stanley County 2 1 0
Hand County 2 0 0
Harding County 1 0 0