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EWG's Tap Water Database

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South Dakota

  • 477 Utilities

  • Serving: 757,000

  • Data available: 2010-2015

  • Contaminants Found: 27

 

EWG's drinking water quality report for South Dakota shows results of tests conducted by the water utilities in South Dakota and provided to EWG by the South Dakota Department of Environment & Natural Resources.

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

Below are utilities in South Dakota serving over 10,000 people, listed alphabetically.

Large utilities in South Dakota

UtilityLocationPeople
Served
AberdeenAberdeen, SD26,091
Bon Homme-Yankton RWSTabor, SD10,740
Brookings Municipal UtilitiesBrookings, SD22,298
HuronHuron, SD12,592
Mid-Dakota Rural WaterPierre, SD10,200
MitchellMitchell, SD15,254
PierrePierre, SD13,646
Rapid CityRapid City, SD66,481
Sioux FallsSioux Falls, SD158,800
SpearfishSpearfish, SD10,697
VermillionVermillion, SD10,571
Watertown Municipal UtilitiesWatertown, SD21,482
Web Water Development AssociationAberdeen, SD14,000
YanktonYankton, SD14,700

Utilities that accumulated/accrued the most violation points as of October 2015 to September 2018 in South Dakota

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
Cedar Gulch IIRapid City, SD2795
Viewfield Rural Water SystemBlack Hawk, SD15090
Shirt Tail Gulch DevelopmentLead, SD6085
Owanka Rural Water SystemBlack Hawk, SD5260
Meadow Crest Homeowners AssociationSpearfish, SD2540
RamonaRamona, SD17416
Ponderosa Mobile Home RanchRapid City, SD7514
McintoshMcintosh, SD17312
Wagon Wheel Village IBox Elder, SD30010
Hill CityHill City, SD95010
Dry Creek EstatesPiedmont, SD10510
Buffalo GapBuffalo Gap, SD1269
Maxwell ColonyScotland, SD2007
Horseshoe AcresPiedmont, SD657
Cedar Gulch IRapid City, SD457
New EffingtonNew Effington, SD2567
HenryHenry, SD2976
Eagle ButteEagle Butte, SD4,0006
SelbySelby, SD6426
Pine Hills ParkBlack Hawk, SD3006
Walnut ParkSpearfish, SD1806
CanovaCanova, SD1056
Mountain Plains 2 Homeowners AssociationSpearfish, SD2755
Garden CityGarden City, SD535
DelmontDelmont, SD2345
DupreeDupree, SD5255
JavaJava, SD1295
Ree HeightsRee Heights, SD795
TulareTulare, SD2175
Northern Lights Mobile Home ParkYankton, SD573

Large utilities that accumulated/accrued the most violation points as of October 2015 to September 2018 in South Dakota

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points

Contaminants found in South Dakota above health guidelines

Found above health guidelinesFound
Contaminant# of UtilitiesPeople Served# of UtilitiesPeople Served

Total trihalomethanes (TTHMs)
276699,754276699,754

Nitrate
200448,680206467,829

Chromium (hexavalent)
89432,25790445,903

Radium, combined (-226 & -228)
136183,373143184,821

Radium-226
100148,782101148,822

Radium-228
104147,425104147,425

Uranium
2419,7772519,832

Perfluorohexane sulfonate (PFHXS)
113,646113,646

Arsenic
114,553114,553

Bromodichloromethane
31,21331,213

Chloroform
31,21331,213

Dibromochloromethane
27632763

Trichloroacetic acid
27462746

Dichloroacetic acid
27462746

Bromoform
12961296

Thallium
12001200

Strontium
160110476,092

Contaminants found in South Dakota above legal limits

Contaminant# of UtilitiesPeople Served

Total trihalomethanes (TTHMs)
23,221

Nitrate
1275

Uranium
3183

Radium, combined (-226 & -228)
175