EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

STATE / TERRITORY LEDGER

South Dakota drinking water system records

EPA compliance fields for active community water systems reporting at least 2,500 people served.

Systems61active CWS · pop. 2,500+
Population served752,965reported total; may overlap
Current violation flag6.6%4 systems
Serious-violator flag3.3%2 systems

01 / LARGEST SYSTEMS

Community water systems in South Dakota

Population served is a system-reported service figure. It is not a count of unique state residents.

Water systemPopulation servedPrimary sourceCurrent export status
Sioux FallsSD4600294216,462Surface waterNo current violation flagged
Rapid CitySD460040672,009Surface waterNo current violation flagged
AberdeenSD460002027,989Surface waterNo current violation flagged
Brookings Municipal UtilitiesSD460007123,377Ground waterNo current violation flagged
Watertown Municipal UtilitiesSD460035623,230Ground waterNo current violation flagged
Web Water Development AssociationSD460108920,750Surface waterNo current violation flagged
MitchellSD460021415,651Surface water purchasedNo current violation flagged
YanktonSD460042315,411Ground waterNo current violation flagged
HuronSD460016914,263Surface water purchasedNo current violation flagged
PierreSD460024214,091Surface waterNo current violation flagged
Box ElderSD460004614,000Ground waterCurrent serious-violator flag
SpearfishSD460031113,803Ground waterNo current violation flagged
Minnehaha Community Water CorpSD460043213,435Ground waterNo current violation flagged
By Water DistrictSD460086513,320Surface waterNo current violation flagged
Mid-Dakota Rural WaterSD460217511,833Surface waterNo current violation flagged
VermillionSD460034211,695Ground waterNo current violation flagged
Rapid Valley Sanitary DistrictSD460027411,408Surface waterNo current violation flagged
BrandonSD460004811,048Ground waterNo current violation flagged
HarrisburgSD460014810,297Ground water purchasedNo current violation flagged
Ellsworth AfbSD46800049,100Surface water purchasedNo current violation flagged
Pine Ridge Water System0846904757,482Ground waterNo current violation flagged
TeaSD46004097,381Ground water purchasedNo current violation flagged
SturgisSD46003217,020Ground waterNo current violation flagged
Standing Rock Rural Water System0846905106,839Surface waterCurrent serious-violator flag
Kyle Water System0846904746,526Surface water purchasedNo current violation flagged
Kingbrook I Rural Water SystemSD46004316,455Ground water purchasedNo current violation flagged
Randall Community Water DistrictSD46004336,248Surface waterNo current violation flagged
Brookings-Deuel Rural Water SystemSD46004306,200Ground waterNo current violation flagged
MadisonSD46001996,191Ground waterNo current violation flagged
Lincoln County Rural Water SystemSD46003045,965Ground water purchasedNo current violation flagged
Big Sioux Community Water SystemSD46004295,800Ground waterNo current violation flagged
Brown-Day-Marshall RwsSD46008825,673Ground waterNo current violation flagged
Belle FourcheSD46000375,617Ground waterNo current violation flagged
Sicangu Mni Wiconi Rural Water System0846905165,610Surface water purchasedCurrent health-based flag
Rosebud Rural Water System0846905285,500Ground waterCurrent health-based flag
South Lincoln Rural Water SystemSD46008705,250Ground waterNo current violation flagged
Grant-Roberts Rural Water SystemSD46008645,050Ground waterNo current violation flagged
Tripp County Water User DistrictSD46005204,860Ground waterNo current violation flagged
Clay Rural Water SystemSD46006264,780Ground waterNo current violation flagged
Wr/Lj - Mni WiconiSD46022234,720Surface water purchasedNo current violation flagged
Black Hawk Water User DistrictSD46000434,500Ground waterNo current violation flagged
Sioux Rural Water SystemSD46008664,280Ground waterNo current violation flagged
Tm Rural Water DistrictSD46009994,250Surface water purchasedNo current violation flagged
Eagle ButteSD46000104,000Surface water purchasedNo current violation flagged
Dakota Dunes CidSD46020933,700Purchased ground water under influence of surface water sourceNo current violation flagged
Dell RapidsSD46001053,633Ground water purchasedNo current violation flagged
Oglala Rws Pipeline0846904803,562Ground waterNo current violation flagged
MilbankSD46002073,544Ground waterNo current violation flagged
Davison Rural Water System IncSD46010903,485Surface water purchasedNo current violation flagged
HartfordSD46001503,396Ground water purchasedNo current violation flagged
Hot SpringsSD46001633,395Ground waterNo current violation flagged
MobridgeSD46002153,261Surface waterNo current violation flagged
CantonSD46000823,066Ground waterNo current violation flagged
North Sioux CitySD46002263,042Ground waterNo current violation flagged
LeadSD46021642,982Surface water purchasedNo current violation flagged
WinnerSD46003732,921Ground waterNo current violation flagged
Kingbrook Iii Rural Water SystemSD46008742,888Ground waterNo current violation flagged
Aurora-Brule Rural Water SystemSD46006212,750Surface waterNo current violation flagged
Kingbrook Ii Rural Water SystemSD46005112,715Ground waterNo current violation flagged
Hanson Rural Water SystemSD46008782,685Surface water purchasedNo current violation flagged
LennoxSD46001932,571Ground water purchasedNo current violation flagged