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EWG's Tap Water Database — 2019 UPDATE

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South Dakota

  • 483 Utilities

  • Serving: 757,000

  • Data available: 2012-2017

  • 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 April 2016 to March 2019 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
Owanka Rural Water SystemBlack Hawk, SD5265
SpringfieldSpringfield, SD1,98946
Meadow Crest Homeowners AssociationSpearfish, SD2545
LetcherLetcher, SD19024
Dry Creek EstatesPiedmont, SD10523
Bon Homme-Yankton RWSTabor, SD10,74022
RosholtRosholt, SD40820
Southbrook EstatesBrookings, SD7520
Reynolds CourtSpearfish, SD2820
Maxwell ColonyScotland, SD20020
Greenwood ColonyDelmont, SD8020
NislandNisland, SD23217
CanovaCanova, SD10517
MidlandMidland, SD12015
WagnerWagner, SD1,56615
KeystoneKeystone, SD37015
Sheridan Lake HighlandsPiedmont, SD6615
NundaNunda, SD4315
Ponderosa Mobile Home RanchRapid City, SD7514
New EffingtonNew Effington, SD25614
Newport ColonyClaremont, SD11614
UticaUtica, SD6513
SummitSummit, SD28813
Pine Lake HillsSioux Falls, SD32012
Sacora Mobile Home ParkPiedmont, SD4212
OldhamOldham, SD13312
Fall River Wud-southOral, SD64812
OelrichsOelrichs, SD12612
BisonBison, SD33311

Large utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 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
Bon Homme-Yankton RWSTabor, SD10,74022
Watertown Municipal UtilitiesWatertown, SD21,4825

Contaminants found in South Dakota above health guidelines

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

Total trihalomethanes (TTHMs)
291703,488291703,488

Haloacetic acids (HAA5)
236574,190236574,190

Nitrate
234458,536251510,425

Chromium (hexavalent)
83421,26784434,913

Arsenic
37200,92336197,098

Radium, combined (-226 & -228)
184200,430186200,851

Uranium
2619,4142819,500

Perfluorohexane sulfonate (PFHXS)
113,646113,646

Dichloroacetic acid
52,77331,213

Trichloroacetic acid
52,77331,213

Chloroform
52,77331,213

Bromodichloromethane
52,77331,213

Di(2-ethylhexyl) phthalate
12,06722,534

Dibromochloromethane
27632763

Dibromoacetic acid
27632763

Bromoform
27632763

Thallium
12001200

Strontium
160104465,102

Contaminants found in South Dakota above legal limits

Contaminant# of UtilitiesPeople Served

Nitrate
1275

Uranium
2156

Radium, combined (-226 & -228)
287