Tap Truth EPA drinking water records, in plain English

County drinking water records

Pennington County, SD drinking water systems

58 community water systems serve Pennington County, SD, reporting 120,855 people served in all. A system that also serves other counties counts all of its customers here.

16 of them (28%) had at least one health-based violation in the last 10 years. None of those systems has one still unresolved.

54 rely mainly on groundwater and 4 on surface water, counting water bought from other systems.

Their lead service line inventories list 107 lead lines, 213 galvanized lines that must be replaced and 4,370 lines of unknown material.

9 more systems are placed in Pennington County, SD by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
58
People served, sum of each system's own figure
120,855
Systems with a health-based violation, last 10 years
16
Systems with one unresolved
0
Lead service lines in inventories
107

Water systems serving Pennington County

58 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Rapid City Rapid City and Green Valley 72,009 Surface water 0 0 106
Box Elder Box Elder and Rapid Valley 14,000 Groundwater 9 0 0
Rapid Valley Sanitary District Rapid City, Rapid Valley and 1 more 11,408 Surface water 0 0 0
Ellsworth AFB Box Elder 9,100 Purchased surface water 0 0 0
Colonial Pine Hills Sanitary Distric Colonial Pine Hills and Rapid City 1,200 Groundwater 0 0 0
Chapel Lane Water Company Rapid City 1,200 Groundwater 0 0 0
WR/LJ - Creighton Project Wall, Quinn and 2 more and land outside them 1,170 Groundwater 0 0 0
Northdale Sanitary District Blackhawk and Piedmont 1,075 Groundwater 1 0 0
Hill City Hill City 872 Groundwater 2 0 0
Wall Wall 699 Groundwater 0 0 0
New Underwood New Underwood 679 Groundwater 0 0 0
Hisega Meadows Water Inc Rapid City and land outside it 491 Groundwater under direct influence 0 0 0
Hart Ranch Rapid City and land outside it 438 Groundwater 0 0 0
Pine Grove Rapid City and land outside it 425 Groundwater 0 0 0
South Canyon Country Estates Rapid City and land outside it 420 Groundwater 0 0 0
The Ranch at Black Gap Rapid City and land outside it 375 Groundwater 0 0 0
Prairie Acres LLC Rapid City 350 Groundwater 1 0 0
Keystone Keystone 349 Groundwater 0 0 1
Valley Heights Estates Inc Rapid Valley 320 Purchased groundwater 0 0 0
Prairie Acres North Rapid City and land outside it 288 Groundwater 1 0 0
Carriage Hills Rapid City 267 Groundwater 0 0 0
Happy Holiday RV Resort Colonial Pine Hills and Rapid City and land outside them 264 Groundwater 1 0 0
Sunset Ranch Rapid City and land outside it 263 Groundwater 0 0 0
Sunnyside Mobile Home Park II Outside cities and towns 235 Groundwater 2 0 0
Pine Cliff Estates Johnson Siding and Rapid City 180 Groundwater 0 0 0
Oaks Water Users Association New Underwood and land outside it 180 Groundwater 0 0 0
Rapid City Mobile Home Park Rapid City and land outside it 170 Groundwater 0 0 0
Prairie Acres South Rapid City 170 Groundwater 1 0 0
Strato Rim Estates Water Company Rapid City and land outside it 170 Groundwater 0 0 0
Rushmore Ranch Estates Outside cities and towns 168 Groundwater 0 0 0
Canyon Springs Water and Sewer Distr Rapid City and land outside it 163 Groundwater 0 0 0
Westberry Trails Water Users Assoc Rapid City and land outside it 155 Groundwater 0 0 0
Ponderosa Mobile Home Ranch Rapid City and land outside it 150 Groundwater 1 0 0
B & J Mobile Home Park Rapid City and land outside it 135 Groundwater 0 0 0
Country Road Estates Outside cities and towns 112 Groundwater 0 0 0
Ponderosa Ridge Rapid City and land outside it 90 Groundwater 0 0 0
Spring Canyon Water Company Colonial Pine Hills and Rapid City 89 Groundwater 0 0 0
Sheridan Lake Highlands, Inc. Rapid City and land outside it 85 Groundwater 4 0 0
Wasta Wasta and Wall 84 Groundwater 0 0 0
Edelweiss Mountain Improvement Assoc Rapid City and land outside it 70 Groundwater 0 0 0
Thrall Mtn. Property Owners Associat Rapid City and land outside it 70 Groundwater 0 0 0
Siphon Hill Water Association Johnson Siding and Rapid City 68 Groundwater 0 0 0
Whispering Willows Box Elder and Rapid City 64 Purchased groundwater 1 0 0
High Meadows Ranchettes Rapid City and land outside it 60 Groundwater 0 0 0
Owanka Rural Water System Outside cities and towns 52 Groundwater 18 0 0
Whispering Pines Water Association Colonial Pine Hills and Rapid City 48 Groundwater 0 0 0
Golden Hills Homes Rapid City and land outside it 47 Groundwater 0 0 0
Cedar Gulch 1 Rapid City and land outside it 45 Groundwater 3 0 0
Cavalry Trails Homeowner Association Rapid City and land outside it 44 Groundwater 0 0 0
Cedar Gulch 2 Rapid City and land outside it 40 Groundwater 18 0 0
Highland Hills Colonial Pine Hills and Rapid City 38 Groundwater 1 0 0
High Sheridan Ranch Rapid City and land outside it 38 Groundwater 0 0 0
Rimrock Ridge Water Association Rapid City and land outside it 35 Groundwater 0 0 0
Ponderosa Park Colonial Pine Hills and Rapid City 31 Groundwater 0 0 0
Norris Peak Water Users Assoc Rapid City and land outside it 30 Groundwater 0 0 0
Hidden Valley Water Association Inc Rapid City and land outside it 27 Groundwater 1 0 0
Ponderosa Water Company Rapid City 25 Groundwater 0 0 0
Pineview Water Association Rapid City 25 Groundwater 0 0 0

Systems placed by county record in Pennington County

9 systems

EPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Prairie Haven Subdivision County on record 105 Groundwater 3 0 0
Copper Oaks I County on record 64 Purchased groundwater 1 0 0
Lakeside Water Users District County on record 51 Groundwater 1 0 0
Boxelder High Country Association County on record 45 Groundwater 0 0 0
Bridle Ridge Estates County on record 38 Groundwater 0 0 0
Happy Holiday Water Association County on record 35 Groundwater 1 1 No inventory
Rimrock Heights Homeowners Associati County on record 35 Groundwater 0 0 0
Reynolds Court County on record 28 Groundwater 5 0 0
Darlington Estates County on record 25 Groundwater 3 1 No inventory

Cities and towns in Pennington County

12 places

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Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations