Public Water Systems
654 active public water systems in SD, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Bristol | Bristol, SD | 288 | 38 | - |
| Summit | Summit, SD | 288 | 218 | - |
| Prairie Acres North | Rapid City, SD | 288 | 234 | - |
| Langford | Langford, SD | 283 | 9 | - |
| Golden Valley Water Company | Black Hawk, SD | 283 | 58 | - |
| Csp-Legion Lake | Custer, SD | 278 | 0 | - |
| Wakonda | Wakonda, SD | 276 | 18 | - |
| Bonesteel | Bonesteel, SD | 275 | 69 | - |
| Roscoe | Roscoe, SD | 269 | 14 | - |
| Mountain Plains 2 Homeowners Assoc | Spearfish, SD | 268 | 179 | - |
| Pukwana | Chamberlain, SD | 267 | 77 | - |
| Carriage Hills | Rapid City, SD | 267 | 10 | - |
| Chancellor | Chancellor, SD | 266 | 27 | - |
| Kennebec | Kennebec, SD | 265 | 79 | - |
| Happy Holiday RV Resort | Rapid City, SD | 264 | 271 | - |
| Sunset Ranch | Piedmont, SD | 263 | 90 | - |
| Henry | Henry, SD | 256 | 67 | - |
| Spearfish KOA | Spearfish, SD | 256 | 2 | - |
| Woodland Hills Sanitary District | Black Hawk, SD | 255 | 60 | - |
| Saint Onge Sewer & Water Co | Spearfish, SD | 255 | 185 | - |
| Willow Lake | Willow Lake, SD | 255 | 59 | - |
| YMCA Giraffic Park | Rapid City, SD | 250 | 34 | - |
| Wharf Resources Water System | Lead, SD | 250 | 83 | - |
| Medicine Mountain Scout Camp | Rapid City, SD | 250 | 36 | - |
| Tmt, Inc. | Pierre, SD | 250 | 13 | Clean |
| Valley View Water Company | Piedmont, SD | 248 | 59 | - |
| New Effington | New Effington, SD | 247 | 50 | - |
| Egan | Egan, SD | 241 | 82 | - |
| Gary | Gary, SD | 240 | 15 | - |
| Sugar Shack | Deadwood, SD | 240 | 101 | - |
| Powder House Pass | Rapid City, SD | 238 | 2 | - |
| Rapid City RV Park and Cg | Rapid City, SD | 236 | 95 | - |
| Sunnyside Mobile Home Park II | Piedmont, SD | 235 | 72 | - |
| Creekside LLC | Hill City, SD | 235 | 23 | - |
| Dry Creek Estates | Black Hawk, SD | 233 | 67 | - |
| Valley View Estates | Sioux Falls, SD | 230 | 47 | - |
| Csp-Center Lake & Playhouse | Custer, SD | 230 | 0 | - |
| Pickstown | Pickstown, SD | 230 | 21 | - |
| Pollock | Pollock, SD | 229 | 30 | - |
| Blucksberg Mountain #1 | Piedmont, SD | 223 | 54 | - |
| Viewfield Rural Water System | Black Hawk, SD | 220 | 129 | - |
| Boxelder Civilian Conservation Ctr | Nemo, SD | 220 | 25 | - |
| Nps-Jewel Cave National Monument | Custer, SD | 219 | 3 | - |
| Frederick | Frederick, SD | 215 | 32 | - |
| Three Flags RV Park | Black Hawk, SD | 215 | 8 | - |
| Alpena | Miller, SD | 212 | 65 | - |
| Tulare | Miller, SD | 211 | 65 | - |
| Plainsview Mobile Manor | Black Hawk, SD | 210 | 288 | - |
| Hecla | Hecla, SD | 208 | 62 | - |
| Nisland | Nisland, SD | 206 | 539 | - |