South Dakota Water Quality Reports
Comprehensive water quality data for 113 cities across South Dakota. View EPA-verified contaminant levels and get filter recommendations.
Water Quality by County
Explore aggregated water quality scores across South Dakota counties. Scores are calculated based on EPA data and weighted by population.
Common Contaminants in South Dakota
1 cities in South Dakota have at least one contaminant above EPA health guidelines.
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Upload my testCities in South Dakota
Sioux Falls
Rapid City
Brookings
Watertown
Mitchell
Yankton
Huron
Pierre
Vermillion
Spearfish
Box Elder
Brandon
Rapid Valley
Harrisburg
Tea
Belle Fourche
Black Hawk
Eagle Butte
Canton
Dell Rapids
Hartford
Hot Springs
Mobridge
Dakota Dunes
Lead
Lennox
North Sioux City
Agency Village
Sisseton
Chamberlain
Beresford
Flandreau
Redfield
Fort Pierre
Springfield
Custer
Elk Point
Volga
Webster
Wagner
Parkston
Mission
Groton
Fort Thompson
Miller
Freeman
Salem
Gregory
Deadwood
Crooks
Clear Lake
Platte
Colonial Pine Hills
Baltic
Garretson
Gettysburg
Clark
Lemmon
Oral
Worthing
Tyndall
Alcester
Scotland
Edgemont
Elkton
Estelline
Highmore
Faulkton
McLaughlin
Onida
Selby
Colman
Kimball
Presho
Murdo
Lake Norden
Wolsey
Timber Lake
Herreid
Tabor
Irene
Gayville
Hayti
Blunt
Ethan
Alpena
Wakonda
Iroquois
Egan
Trent
Artesian
Letcher
Mission Hill
Wessington
Volin
Buffalo Gap
Lesterville
Oelrichs
Java
Wallace
Showing top 100 of 113 cities by population.
Use the search box above to find any city in South Dakota.
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