Water quality in Sioux Falls, South Dakota
Sioux Falls is in Lawrence County. 74 active public water systems serve the county; 15 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Lawrence County
41 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Three Peaks Water Association Atkinson, Black Hawk |
28 | 0 | 145.6 mi | |
| Apple Springs Subdivision Flower Mound, Hill City |
180 | 0 | 154.6 mi | |
| Valhalla Addition Black Hawk, Sturgis |
38 | 0 | 158.8 mi | |
| Boulder Park Water Users Association Rapid City, Sturgis |
200 | 0 | 159.6 mi | |
| Whitewood Whitewood |
879 | 0 | 160.2 mi | |
| Pillar Peak Black Hawk, Deadwood, Scranton |
38 | 0 | 161.8 mi | |
| Meadow Crest Sanitary District Deadwood, Spearfish |
63 | 0 | 162.1 mi | |
| Oak Mountain Country Estates Black Hawk, Deadwood |
85 | 0 | 162.8 mi | |
| Whitewood Forest Acres Whitewood |
160 | 1 | 163.0 mi | |
| Two Bit Ranch Estates Deadwood, Sioux Falls, Spearfish |
30 | 0 | 163.1 mi | |
| Golden Hills Subdivision Lead, Piedmont, Sioux Falls |
30 | 0 | 163.3 mi | |
| 76 Ranch Estates Black Hawk, Sturgis |
40 | 0 | 163.5 mi | |
| Shirt Tail Gulch Development Black Hawk, Sturgis |
65 | 0 | 164.1 mi | |
| Spearfish Meadows Rapid City, Spearfish |
87 | 0 | 164.7 mi | |
| Deadwood Deadwood |
1,156 | 0 | 165.4 mi | |
| Lead Lead |
2,982 | 0 | 167.0 mi | |
| Lead-Deadwood Sanitary District Deadwood |
0 | 0 | 167.0 mi | |
| Saint Onge Sewer & Water CO Spearfish, St Onge |
255 | 0 | 167.6 mi | |
| Eagle Water Company Black Hawk, Lead |
48 | 0 | 168.3 mi | |
| Deer Mountain Sanitary District Lead |
125 | 0 | 168.7 mi | |
| Centennial Hills Home Association Spearfish |
25 | 0 | 168.7 mi | |
| Paradise Water Company LLC Lead, Sioux Falls |
178 | 0 | 168.7 mi | |
| Sunrise Homeowners Association Spearfish |
50 | 0 | 169.3 mi | |
| Walnut Park Spearfish |
180 | 1 | 169.4 mi | |
| Terry Trojan Water District Black Hawk, Lead |
400 | 0 | 170.7 mi |
Non-community systems in Lawrence County (32: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Lawrence County, nearest to Sioux Falls first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files or the centre of the first ZIP code EPA lists the system as serving, from Census Bureau ZCTA files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.