The Power of Information

National Drinking Water Database

Combined Uranium (pCi/L) in South Dakota

Uranium is a radioactive element commonly found in most rocks; processed ore is used for power generation and weapons manufacture. [read more]

The Most Polluted Communities in South Dakota

14 water utilities reported detecting Combined Uranium (pCi/L) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Combined Uranium (pCi/L) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Heartland Country Ranchettes
Black Hawk, SD
921 of 126 pCi/L
(26 pCi/L)
2Buffalo Gap
Buffalo Gap, SD
1641 of 124 pCi/L
(24 pCi/L)
3Spring Creek Acres
801 of 115 pCi/L
(15 pCi/L)
4Hermosa-New System
4671 of 114 pCi/L
(14 pCi/L)
5Hermosa-Old System
Hermosa, SD
321 of 112 pCi/L
(12 pCi/L)
Castlewood, SD
6662 of 211.5 pCi/L
(7.1 to 15.9 pCi/L)
7Corson Village Sanitary District
Corson, SD
502 of 37 pCi/L
(0 to 10.7 pCi/L)
8Golden Valley Water Company
951 of 16.1 pCi/L
(6.1 pCi/L)
9Rapid Valley Sanitary District
Rapid City, SD
7,7131 of 26 pCi/L
(0 to 12 pCi/L)
Edgemont, SD
8674 of 44.29 pCi/L
(2.45 to 5 pCi/L)

Health Based Limits for Combined Uranium (pCi/L)

Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.15 pCi/L

Violation Summary for Combined Uranium (pCi/L) in South Dakota

There are no violations reported for this contaminant in South Dakota