South Dakota: drinking water & radon

South Dakota has 512 active community water systems. Since 2016, 180 reported health-based violations; 0 had a latest lead result above 15 ppb; 1 measured PFOA or PFOS at or above 4 ppt.

Radon zones in South Dakota

tap a county

Zone 1 · highestZone 2 · moderateZone 3 · low

All ZIP codes in South Dakota

382 ZIP codes.

57001Alcester57002Aurora57003Baltic57004Beresford57005Brandon57006Brookings57007Brookings57010Burbank57012Canistota57013Canton57014Centerville57015Chancellor57016Chester57017Colman57018Colton57020Crooks57021Davis57022Dell Rapids57024Egan57025Elk Point57026Elkton57027Fairview57028Flandreau57029Freeman57030Garretson57031Gayville57032Harrisburg57033Hartford57034Hudson57035Humboldt57036Hurley57037Irene57038Jefferson57039Lennox57040Lesterville57041Lyons57042Madison57043Marion57045Menno57046Mission Hill57047Monroe57048Montrose57049North Sioux City57050Nunda57051Oldham57052Olivet57053Parker57054Ramona57055Renner57057Rutland57058Salem57059Scotland57061Sinai57062Springfield57063Tabor57064Tea57065Trent57066Tyndall57067Utica57068Valley Springs57069Vermillion57070Viborg57071Volga57072Volin57073Wakonda57075Wentworth57076Winfred57077Worthing57078Yankton57101Sioux Falls57103Sioux Falls57104Sioux Falls57105Sioux Falls57106Sioux Falls57107Sioux Falls57108Sioux Falls57109Sioux Falls57110Sioux Falls57117Sioux Falls57118Sioux Falls57186Sioux Falls57193Sioux Falls57198Sioux Falls57201Watertown57212Arlington57213Astoria57214Badger57216Big Stone City57217Bradley57218Brandt57219Bristol57220Bruce57221Bryant57223Castlewood57224Claire City57225Clark57226Clear Lake57227Corona57231De Smet57232Eden57233Erwin57234Estelline57235Florence57236Garden City57237Gary57238Goodwin57239Grenville57241Hayti57242Hazel57243Henry57245Kranzburg57246Labolt57247Lake City57248Lake Norden57249Lake Preston57251Marvin57252Milbank57255New Effington57256Ortley57257Peever57258Raymond57259Revillo57260Rosholt57261Roslyn57262Sisseton57263South Shore57264Stockholm57265Strandburg57266Summit57268Toronto57269Twin Brooks57270Veblen57271Vienna57272Wallace57273Waubay57274Webster57276White57278Willow Lake57279Wilmot57301Mitchell57311Alexandria57312Alpena57313Armour57314Artesian57315Avon57317Bonesteel57319Bridgewater57321Canova57322Carpenter57323Carthage57324Cavour57325Chamberlain57326Chamberlain57328Corsica57329Dante57330Delmont57331Dimock57332Emery57334Ethan57335Fairfax57337Fedora57339Fort Thompson57340Fulton57341Gann Valley57342Geddes57344Harrison57345Highmore57346Stephan57348Hitchcock57349Howard57350Huron57353Iroquois57354Kaylor57355Kimball57356Lake Andes57358Lane57359Letcher57361Marty57362Miller57363Mount Vernon57364New Holland57365Oacoma57366Parkston57367Pickstown57368Plankinton57369Platte57370Pukwana57371Ree Heights57373Saint Lawrence57374Spencer57375Stickney57376Tripp57379Virgil57380Wagner57381Wessington57382Wessington Springs57383White Lake57384Wolsey57385Woonsocket57386Yale57399Huron57401Aberdeen57402Aberdeen57420Akaska57421Amherst57422Andover57424Ashton57426Barnard57427Bath57428Bowdle57429Brentford57430Britton57432Claremont57433Columbia57434Conde57435Cresbard57436Doland57437Eureka57438Faulkton57439Ferney57440Frankfort57441Frederick57442Gettysburg57445Groton57446Hecla57448Hosmer57449Houghton57450Hoven57451Ipswich57452Java57454Langford57455Lebanon57456Leola57457Long Lake57460Mansfield57461Mellette57465Northville57466Onaka57467Orient57468Pierpont57469Redfield57470Rockham57471Roscoe57472Selby57473Seneca57474Stratford57475Tolstoy57476Tulare57477Turton57479Warner57481Westport57501Pierre57520Agar57521Belvidere57522Blunt57523Burke57528Colome57529Dallas57531Draper57532Fort Pierre57533Gregory57534Hamill57536Harrold57537Hayes57538Herrick57540Holabird57541Ideal57543Kadoka57544Kennebec57547Long Valley57548Lower Brule57551Martin57552Midland57553Milesville57555Mission57559Murdo57560Norris57562Okaton57563Okreek57564Onida57566Parmelee57567Philip57568Presho57569Reliance57570Rosebud57571Saint Charles57572Saint Francis57574Tuthill57576Vivian57577Wanblee57579White River57580Winner57584Witten57585Wood57601Mobridge57620Bison57621Bullhead57622Cherry Creek57623Dupree57625Eagle Butte57626Faith57630Glencross57631Glenham57632Herreid57633Isabel57634Keldron57636Lantry57638Lemmon57639Little Eagle57640Lodgepole57641Mc Intosh57642Mc Laughlin57644Meadow57645Morristown57646Mound City57648Pollock57649Prairie City57650Ralph57651Reva57652Ridgeview57656Timber Lake57657Trail City57658Wakpala57659Walker57660Watauga57661Whitehorse57701Rapid City57702Rapid City57703Rapid City57706Ellsworth Afb57709Rapid City57714Allen57716Batesland57717Belle Fourche57718Black Hawk57719Box Elder57720Buffalo57722Buffalo Gap57724Camp Crook57725Caputa57730Custer57732Deadwood57735Edgemont57737Enning57738Fairburn57744Hermosa57745Hill City57747Hot Springs57748Howes57750Interior57751Keystone57752Kyle57754Lead57755Ludlow57756Manderson57758Mud Butte57759Nemo57760Newell57761New Underwood57762Nisland57763Oelrichs57764Oglala57766Oral57767Owanka57769Piedmont57770Pine Ridge57772Porcupine57773Pringle57775Quinn57776Redig57779Saint Onge57780Scenic57782Smithwick57783Spearfish57785Sturgis57787Union Center57788Vale57790Wall57791Wasta57792White Owl57793Whitewood57794Wounded Knee

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

How many water systems in South Dakota have violations?

180 of 512 active community water systems in South Dakota reported at least one health-based violation since 2016 (EPA SDWIS).

What is the radon risk in South Dakota?

283 ZIP codes are in EPA radon zone 1 (highest potential), 93 in zone 2 and 0 in zone 3. EPA recommends testing every home.