Water quality in Newcastle, South Dakota
Newcastle 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 |
|---|---|---|---|---|
| Terry Trojan Water District Black Hawk, Lead |
400 | 0 | 12.6 mi | |
| Deer Mountain Sanitary District Lead |
125 | 0 | 12.7 mi | |
| Lead-Deadwood Sanitary District Deadwood |
0 | 0 | 16.2 mi | |
| Lead Lead |
2,982 | 0 | 16.5 mi | |
| Paradise Water Company LLC Lead, Sioux Falls |
178 | 0 | 17.9 mi | |
| The Timbers Black Hawk, Spearfish |
33 | 0 | 18.4 mi | |
| Deadwood Deadwood |
1,156 | 0 | 19.0 mi | |
| Mountain Plains 2 Homeowners Assoc Spearfish |
268 | 3 | 19.7 mi | |
| Golden Hills Subdivision Lead, Piedmont, Sioux Falls |
30 | 0 | 19.9 mi | |
| Two Bit Ranch Estates Deadwood, Sioux Falls, Spearfish |
30 | 0 | 20.4 mi | |
| Shirt Tail Gulch Development Black Hawk, Sturgis |
65 | 0 | 20.8 mi | |
| Centennial Hills Home Association Spearfish |
25 | 0 | 20.9 mi | |
| 76 Ranch Estates Black Hawk, Sturgis |
40 | 0 | 21.3 mi | |
| Westfield Addition Spearfish |
104 | 0 | 21.4 mi | |
| Spearfish Spearfish |
13,803 | 0 | 21.8 mi | |
| Wild Turkey Estates II Black Hawk, Spearfish |
70 | 0 | 21.8 mi | |
| Oak Mountain Country Estates Black Hawk, Deadwood |
85 | 0 | 21.9 mi | |
| Deberg Well Users Association Spearfish |
54 | 0 | 21.9 mi | |
| Ken's Trailer Court Spearfish |
110 | 0 | 22.2 mi | |
| Wild Turkey Estates I Black Hawk, Spearfish |
33 | 0 | 22.2 mi | |
| D & E Water Company Black Hawk, Spearfish |
100 | 0 | 22.3 mi | |
| Pillar Peak Black Hawk, Deadwood, Scranton |
38 | 0 | 22.3 mi | |
| Chris' Mobile Home Court Spearfish |
25 | 0 | 22.5 mi | |
| Lantern Estates Spearfish, Whitewood |
192 | 0 | 22.7 mi | |
| Meadow Crest Sanitary District Deadwood, Spearfish |
63 | 0 | 22.7 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 Newcastle 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.