All water systems in South Dakota
703 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hartford Hartford · Minnehaha County |
3,396 | 0 | 0 | |
|
Hot Springs Hot Springs · Fall River County |
3,395 | 0 | 0 | |
|
Mobridge Mobridge · Walworth County |
3,261 | 0 | 0 | |
|
Canton Canton · Lincoln County |
3,066 | 0 | 0 | |
|
North Sioux City North Sioux City · Union County |
3,042 | 0 | 0 | |
|
Lead Lead · Lawrence County |
2,982 | 0 | 0 | |
|
Kingbrook III Rural Water System Arlington · Lake County |
2,973 | 0 | 0 | |
|
Winner Winner · Tripp County |
2,921 | 0 | 0 | |
|
Aurora-Brule Rural Water System Kimball · Aurora County |
2,750 | 0 | 0 | |
|
Kingbrook II Rural Water System Arlington · Kingsbury County |
2,715 | 0 | 0 | |
|
Wr/lj North Stanley County Murdo · Stanley County |
2,710 | 0 | 0 | |
|
Hanson Rural Water System Emery, Fulton · Davison County |
2,685 | 0 | 0 | |
|
Lennox Lennox · Lincoln County |
2,571 | 0 | 0 | |
|
Mission Water System County |
2,500 | 4 | 0 | |
|
Sisseton Sisseton · Roberts County |
2,479 | 0 | 0 | |
|
Chamberlain Chamberlain · Brule County |
2,473 | 0 | 0 | |
|
St. Francis County |
2,450 | 5 | 2 | |
|
Flandreau Flandreau · Moody County |
2,372 | 2 | 0 | |
|
Beresford Beresford · Union County |
2,359 | 0 | 0 | |
|
Volga Volga · Brookings County |
2,340 | 0 | 0 | |
|
Clark Rural Water System Clark, Florence · Clark County |
2,325 | 0 | 0 | |
|
Fort Pierre Fort Pierre · Stanley County |
2,236 | 0 | 0 | |
|
Redfield Redfield · Spink County |
2,214 | 0 | 0 | |
|
Tri-County Rural Water System Eagle Butte, Ridgeview · Dewey County |
2,190 | 0 | 0 | |
|
Wanblee East County |
2,179 | 1 | 0 | |
|
Elk Point Elk Point · Union County |
2,124 | 0 | 0 | |
|
Springfield Springfield · Bon Homme County |
2,108 | 1 | 0 | |
|
Laughing Water Restaurant at Crazy H Crazy Horse · Custer County |
2,055 | 0 | 0 | |
|
Custer Custer · Custer County |
1,919 | 0 | 0 | |
|
Webster Webster · Day County |
1,728 | 0 | 0 | |
|
White Horse Creek Water System County |
1,690 | 0 | 0 | |
|
Lower Brule Rural Water Supply System County |
1,637 | 7 | 0 | |
|
Parkston Parkston · Hutchinson County |
1,567 | 2 | 0 | |
|
Martin Martin · Bennett County |
1,500 | 0 | 0 | |
|
Wagner Wagner · Charles Mix County |
1,490 | 0 | 0 | |
|
Butte-Meade Swd-Bean Well Newell · Butte County |
1,481 | 0 | 0 | |
|
Wolf Creek School County |
1,450 | 0 | 0 | |
|
Clay Rws/south Union Wakonda · Union County |
1,447 | 0 | 0 | |
|
Nps-Wind Cave National Park Hot Springs · Custer County |
1,404 | 1 | 0 | |
|
Groton Groton · Brown County |
1,380 | 0 | 0 | |
|
Fort Thompson Water System County |
1,375 | 1 | 0 | |
|
Crooks Crooks · Minnehaha County |
1,362 | 0 | 0 | |
|
Miller Miller · Hand County |
1,349 | 0 | 0 | |
|
Freeman Freeman · Hutchinson County |
1,329 | 0 | 0 | |
|
Salem Salem · McCook County |
1,325 | 0 | 0 | |
|
Baltic Baltic · Minnehaha County |
1,271 | 1 | 0 | |
|
Platte Platte · Charles Mix County |
1,256 | 1 | 0 | |
|
Lakota Tech High School Batesland · County |
1,250 | 0 | 0 | |
|
Garretson Garretson · Minnehaha County |
1,228 | 0 | 0 | |
|
Gregory Gregory · Gregory County |
1,221 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The South Dakota records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.