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 |
|---|---|---|---|---|
| Hermosa-Old System | Hermosa, SD | 420 | 37 | - |
| South Canyon Country Estates | Rapid City, SD | 420 | 30 | - |
| Herreid | Herreid, SD | 416 | 25 | - |
| Csp-Blue Bell | Custer, SD | 413 | 0 | - |
| Big Stone City | Big Stone City, SD | 412 | 126 | - |
| Weston Heights Homeowners Associatio | Piedmont, SD | 412 | 33 | - |
| Terry Trojan Water District | Black Hawk, SD | 400 | 419 | - |
| Heartland Campground | Black Hawk, SD | 395 | 28 | - |
| Hayti | Hayti, SD | 393 | 29 | - |
| Gayville | Gayville, SD | 392 | 42 | - |
| Oacoma | Oacoma, SD | 386 | 48 | - |
| Hurley | Hurley, SD | 379 | 75 | - |
| Rosholt | Rosholt, SD | 379 | 400 | - |
| The Ranch at Black Gap | Rapid City, SD | 375 | 2 | - |
| Rafter-J Bar Ranch | Hill City, SD | 374 | 0 | - |
| Mystic Hills Hideaway North | Deadwood, SD | 369 | 3 | - |
| Faith | Faith, SD | 367 | 18 | - |
| Rimrock Water Company LLC | Aladdin, SD | 365 | 20 | - |
| Chester Sanitary District | Egan, SD | 363 | 122 | - |
| White Lake | White Lake, SD | 359 | 12 | - |
| Butte-Meade Swd-Vale Well | Newell, SD | 357 | 0 | - |
| Prairie Acres LLC | Rapid City, SD | 350 | 138 | - |
| Blunt | Miller, SD | 350 | 191 | - |
| Keystone | Keystone, SD | 349 | 50 | - |
| Buffalo | Buffalo, SD | 346 | 229 | - |
| Hoven | Hoven, SD | 346 | 95 | - |
| Country Village Park | Aberdeen, SD | 340 | 72 | - |
| 3 Sons RV Park | Yankton, SD | 339 | 3 | - |
| Florence | Florence, SD | 337 | 54 | - |
| Blucksberg Mountain #2 | Piedmont, SD | 333 | 0 | - |
| Hudson | Hudson, SD | 332 | 30 | - |
| Mountain Meadow Resort | Hill City, SD | 330 | 30 | - |
| Colome | Colome, SD | 323 | 78 | - |
| Hay Creek Water Company | Belle Fourche, SD | 323 | 49 | - |
| Stickney | Stickney, SD | 321 | 12 | - |
| Ethan | Ethan, SD | 320 | 26 | - |
| Pine Lake Hills | Sioux Falls, SD | 320 | 56 | - |
| Valley Heights Estates Inc | Sturgis, SD | 320 | 11 | - |
| Veblen | Veblen, SD | 317 | 206 | - |
| Bison | Bison, SD | 310 | 105 | - |
| Beaver Lake Campground | Custer, SD | 300 | 56 | - |
| DOT Rest Area 517A-Spearfish | Rapid City, SD | 300 | 19 | - |
| Rush Mountain Adventure Park | Keystone, SD | 300 | 22 | - |
| The Gaslight | Rapid City, SD | 300 | 53 | - |
| Prairiewood Property Owners | Aberdeen, SD | 300 | 20 | - |
| Rushmore Mountain Coaster | Keystone, SD | 300 | 3 | - |
| Csp-Bison Center | Custer, SD | 300 | 0 | - |
| Csp-Wildlife Station Vc | Custer, SD | 297 | 0 | - |
| Stagebarn Sanitary District | Rapid City, SD | 295 | 70 | - |
| Iroquois | Iroquois, SD | 292 | 16 | - |