Water quality in New Underwood, South Dakota
New Underwood is in Pennington County. 158 active public water systems serve the county; 52 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Pennington County
66 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Sunset Ranch Piedmont, Rapid City |
263 | 0 | 0.9 mi | |
| Copper Oaks I New Underwood, Rapid City |
64 | 2 | 5.4 mi | |
| New Underwood New Underwood |
679 | 0 | 6.0 mi | |
| Ellsworth Afb Ellsworth Afb |
9,100 | 0 | 7.0 mi | |
| Valley Heights Estates INC Sturgis, Westminster |
320 | 1 | 7.0 mi | |
| Cedar Gulch 2 Piedmont, Rapid City |
40 | 0 | 8.0 mi | |
| Whispering Willows Billings, Black Hawk, Rapid City |
64 | 0 | 8.0 mi | |
| Cedar Gulch 1 Rapid City |
45 | 1 | 8.2 mi | |
| Rapid Valley Sanitary District Rapid City |
11,408 | 0 | 9.7 mi | |
| Bridle Ridge Estates Piedmont |
38 | 0 | 10.4 mi | |
| Country Road Estates Black Hawk, Spearfish |
112 | 0 | 11.4 mi | |
| Prairie Acres South Garden City, Rapid City, Tualatin |
170 | 0 | 11.5 mi | |
| Prairie Acres North Garden City, Rapid City, Tualatin |
288 | 0 | 11.5 mi | |
| Prairie Acres LLC Garden City, Rapid City, Tualatin |
350 | 0 | 11.7 mi | |
| Happy Holiday Water Association Rapid City |
35 | 1 | 13.1 mi | |
| Rimrock Heights Homeowners Associati Rapid City |
35 | 0 | 13.1 mi | |
| Darlington Estates Rapid City |
25 | 2 | 13.1 mi | |
| Rapid City Rapid City |
72,009 | 0 | 13.1 mi | |
| The Ranch at Black Gap Rapid City |
375 | 0 | 13.4 mi | |
| Hart Ranch Rapid City |
468 | 0 | 15.9 mi | |
| Prairie Haven Subdivision Black Hawk, Rapid City |
105 | 1 | 16.3 mi | |
| Ponderosa Water Company Rapid City |
25 | 0 | 16.5 mi | |
| Pineview Water Association Rapid City |
25 | 0 | 16.5 mi | |
| Ponderosa Mobile Home Ranch Rapid City |
150 | 0 | 17.0 mi | |
| B & J Mobile Home Park Rapid City |
135 | 0 | 17.0 mi |
Non-community systems in Pennington County (91: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Happy Trails Homeowners Black Hawk, Rapid City |
54 | 1 | 0 | |
|
Rapid City RV Park and CG Rapid City |
236 | 0 | 0 | |
|
Coca Cola Bottling CO Rapid City |
75 | 0 | 0 | |
|
Gcc Dacotah East/west/north Rapid City |
100 | 0 | 0 | |
|
Gcc Dacotah-North Quarry Well Rapid City |
35 | 0 | 0 | |
|
Black Hawk Creek RV Park Black Hawk, Rapid City |
158 | 0 | 0 | |
|
Rapid City South RV Park Black Hawk, Rapid City |
440 | 0 | 0 | |
|
Canyon Lake Resort Rapid City |
60 | 2 | 0 | |
|
Lake Park Campground Rapid City |
65 | 0 | 0 | |
|
Shipwrecks Bar and Grill Rapid City |
35 | 2 | 2 | |
|
Reptile Gardens INC Rapid City |
1,169 | 0 | 0 | |
|
Dinosaur Museum Rapid City |
500 | 2 | 2 | |
|
Chapel in the Hills Rapid City |
200 | 1 | 1 | |
|
Cedar Canyon Wesleyan Camp Rapid City |
62 | 1 | 0 | |
|
Rushmore Candy Company Rapid City |
90 | 3 | 2 | |
|
Athletic Club of the Black Hills Rapid City |
100 | 1 | 1 | |
|
Bear Country USA Black Hawk, Rapid City |
1,021 | 0 | 0 | |
|
Htr Black Hills Resorts Rapid City |
180 | 1 | 1 | |
|
Pine Haven Venue and Lodging Black Hawk, Rapid City, Wall |
128 | 0 | 0 | |
|
Rockerville Motel and Cabins Rapid City |
45 | 0 | 0 | |
|
Rockerville Gold Nugget Lodge Rapid City |
52 | 0 | 0 | |
|
The Gaslight Rapid City, Rockerville |
300 | 0 | 0 | |
|
Rockerville Pud Piedmont, Rapid City |
25 | 0 | 0 | |
|
Pete Lein & Sons Shooting Range Piedmont |
25 | 0 | 0 | |
|
Storm Mountain Center Mitchell, Rapid City |
80 | 1 | 1 | |
|
Salvation Army Camp Rapid City |
25 | 0 | 0 | |
|
Silver Mountain Cabins Rapid City |
29 | 0 | 0 | |
|
Rush Mountain Adventure Park Keystone |
300 | 0 | 0 | |
|
Rushmore Mountain Coaster Keystone |
300 | 0 | 0 | |
|
Rimrock Tavern Lyndon Bolt Boxelder |
35 | 3 | 1 | |
|
Hillside Country Cabins Rapid City |
54 | 1 | 1 | |
|
Black Hills Children's Home Rapid City, Sioux Falls |
105 | 0 | 0 | |
|
Sobos RV Park Scenic |
83 | 1 | 0 | |
|
Placerville Camp Rapid City |
84 | 1 | 1 | |
|
Cosmos Mystery Area Columbus, Rapid City |
600 | 0 | 0 | |
|
Blue Wing Recreation Area Hill City, Rapid City |
200 | 0 | 0 | |
|
Usfs-Bhnf Woodsy/smokey CG Black Hawk, Custer, Overland Park |
145 | 0 | 0 | |
|
Usfs-Bhnf Rocky Campground Black Hawk, Custer, Overland Park |
41 | 0 | 0 | |
|
Powder House Lodge Keystone, Rapid City |
700 | 0 | 0 | |
|
Usfs-Bhnf Chipper/thumper CG Black Hawk, Custer, Overland Park |
56 | 0 | 0 | |
|
Holy Smoke Cabins Keystone |
37 | 0 | 0 | |
|
Pactola Water Association Black Hawk, Hill City |
25 | 0 | 0 | |
|
Usfs-Bhnf Pactola Campground Black Hawk, Custer, Overland Park |
166 | 0 | 0 | |
|
Pactola Pines Store Custer, Rapid City |
500 | 1 | 0 | |
|
Rushmore Tramway Adventures Keystone |
200 | 1 | 1 | |
|
Horse Creek Resort-Lower Wells Rapid City |
90 | 0 | 0 | |
|
Horse Creek Resort-Log Cabin Well Rapid City |
35 | 0 | 0 | |
|
Kemp's Kamp East Keystone |
100 | 0 | 0 | |
|
Rustic Ridge Guest Cabins Keystone |
25 | 0 | 0 | |
|
Kemp's Kamp West Keystone |
68 | 0 | 0 |
About this data
Water systems are matched to Pennington County, nearest to New Underwood 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 town EPA lists the system as serving, from Census Bureau county subdivision 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.