Iowa
Iowa drinking water quality
Every public water system in Iowa we've verified. Each report covers one calendar year and shows the utility's own measured contaminant levels against federal limits.
Want the national picture? See where Iowa lands in our ranking of the states with the most open health-based water violations, pulled from the EPA's own records for every U.S. public water system.
1,172 water systems mapped in Iowa · showing the 800 with the most contaminant flags — explore them all on the map
Browse all 1,172 systems A–Z:123
- Glenbrook Cove Subdivision of Marion (2024)18 contaminants measured· 1 at or above the limit
- Homeland Energy Solution Llc (2025)1 contaminants measured· 1 at or above the limit
- Scranton Water System (2023)1 contaminants measured· 1 at or above the limit
- Victor Municipal Water Dept (2023)1 contaminants measured· 1 at or above the limit
- Responsible Transportation Llc (2025)1 contaminants measured· 1 at or above the limit
- Greenwood Acres Water Co. (2025)1 contaminants measured· 1 at or above the limit
- Kellerton Water Supply (2025)1 contaminants measured· 1 at or above the limit
- Kimballton Utilities (2023)1 contaminants measured
- Pints Water Association (2023)1 contaminants measured
- Lamont Water Supply (2024)1 contaminants measured
- Parkersburg Water Supply (2024)1 contaminants measured
- Scenic Acres (2024)1 contaminants measured
- Lost Canyon Mhp (peosta) (2023)1 contaminants measured
- Reinbeck Water Supply (2024)1 contaminants measured
- Stanhope Water Department (2025)1 contaminants measured
- Protivin Water Supply (2023)1 contaminants measured
- Ottosen Water Supply (2025)1 contaminants measured
- North Coralville Lake Manor (2024)1 contaminants measured
- Burt Water Supply (2024)1 contaminants measured
- Fenton Municipal Water Supply (2023)1 contaminants measured
- Blairs Ferry Manor (2023)1 contaminants measured
- Knollcrest Hoa (2025)1 contaminants measured
- Livermore Water Supply (2024)1 contaminants measured
- Cottage Reserve Corporation (2023)1 contaminants measured
- Lindsey Estates (2024)1 contaminants measured
- Adair Municipal Water Supply (2023)1 contaminants measured
- Fontanelle Water Works (2023)1 contaminants measured
- Greenfield Municipal Utilities (2023)1 contaminants measured
- Sirwa #1 (greenfield) (2024)1 contaminants measured
- Orient Municipal Water Supply (2024)1 contaminants measured
- Stuart Water Supply (2023)1 contaminants measured
- Sirwa - Corning (2024)1 contaminants measured
- Corning Muni Water Department (2023)1 contaminants measured
- Lansing Water Supply (2023)1 contaminants measured
- New Albin Water Supply (2024)1 contaminants measured
- Postville Water Department (2023)1 contaminants measured
- Agri Star Meat and Poultry Llc (2023)1 contaminants measured
- Waukon Water Department (2023)1 contaminants measured
- Kol Gol Inc (2025)1 contaminants measured
- Tasc Inc. (2024)1 contaminants measured
- Rathbun Regional Water Assn (rathbun) (2023)1 contaminants measured
- Rathbun Reg Water Assn (ft Madison) (2024)1 contaminants measured
- Rathbun Reg Wtr Assn (burlington) (2024)1 contaminants measured
- Centerville Municipal Waterworks (2023)1 contaminants measured
- Cincinnati Municipal Water Co (2023)1 contaminants measured
- Moravia Public Water Supply (2025)1 contaminants measured
- Moulton Water Department (2024)1 contaminants measured
- Mystic Water Supply (2023)1 contaminants measured
- Audubon Water Supply (2023)1 contaminants measured
- Brayton Water System (2023)1 contaminants measured
- Exira Water Dept (2025)1 contaminants measured
- Timber Ridge (2024)1 contaminants measured
- Atkins Municipal Water Works (2023)1 contaminants measured
- Blairstown Water Supply (2023)1 contaminants measured
- Belle Plaine Water Dept (2023)1 contaminants measured
- Garrison Water Supply (2024)1 contaminants measured
- Keystone Water Supply (2024)1 contaminants measured
- Mount Auburn Water Supply (2023)1 contaminants measured
- Newhall Water Supply (2023)1 contaminants measured
- Norway City Water Supply (2023)1 contaminants measured
- Shellsburg Water Supply (2024)1 contaminants measured
- Urbana Water Supply (2024)1 contaminants measured
- Van Horne Water Works (2023)1 contaminants measured
- Vinton Municipal Water Dept (2024)1 contaminants measured
- Clover Ridge Subdivision (2024)1 contaminants measured
- Terry Water Association (2023)1 contaminants measured
- Walnut Street Well (2024)1 contaminants measured
- Cedar Falls Municipal Water Utilities (2025)1 contaminants measured
- Cedar Falls Mobile Home Village (2024)1 contaminants measured
- Dunkerton Muni Water Supply (2024)1 contaminants measured
- Lenwood Utilities (2025)1 contaminants measured
- Elk Run Heights Water Supply (2023)1 contaminants measured
- Evansdale Water Works (2025)1 contaminants measured
- Gilbertville Water Works (2023)1 contaminants measured
- Hudson Water Supply (2023)1 contaminants measured
- La Porte City Utilities (2023)1 contaminants measured
- Waterloo Water Works (2025)1 contaminants measured
- Maple Grove Mhc (2024)1 contaminants measured
- Woodward Resource Center (2025)1 contaminants measured
- Boone Water Works (2025)1 contaminants measured
- Coal Valley Water District (2023)1 contaminants measured
- Benefit Water District #2 (2023)1 contaminants measured
- Sunrise Mhc (2025)1 contaminants measured
- Logansport Water System (2024)1 contaminants measured
- Xenia Rwd (boone) (2025)1 contaminants measured
- Madrid Water Department (2024)1 contaminants measured
- Xenia Rwd (madrid) (2025)1 contaminants measured
- Ogden Municipal Utilities (2023)1 contaminants measured
- Pilot Mound Water System (2025)1 contaminants measured
- Meadow Lane Mobile Home Park (2024)1 contaminants measured
- Denver Water Supply (2024)1 contaminants measured
- Janesville Water Supply (2023)1 contaminants measured
- Kay Enterprises Inc (2024)1 contaminants measured
- Plainfield Water Supply (2023)1 contaminants measured
- Readlyn Water Supply (2023)1 contaminants measured
- Sumner Water Supply (2023)1 contaminants measured
- Tripoli Water Supply (2025)1 contaminants measured
- Waverly Water Department (2023)1 contaminants measured
- Ia Regional Utilities Assoc (waverly) (2025)1 contaminants measured
- Saints Avenue Apartments (2024)1 contaminants measured
- Brandon Water Supply (2024)1 contaminants measured
- Fairbank Water Supply (2025)1 contaminants measured
- Poet Biorefining - Fairbank Llc (2025)1 contaminants measured
- Hazleton Water Supply (2024)1 contaminants measured
- Hazleton Mobile Home Park (2024)1 contaminants measured
- Independence Water Dept (2024)1 contaminants measured
- Wapsie Valley Creamery, Inc. (2024)1 contaminants measured
- River Ridge Hoa (2024)1 contaminants measured
- Jesup Municipal Water Supply (2023)1 contaminants measured
- Winthrop Water Supply (2023)1 contaminants measured
- Albert City Muni Water Supply (2023)1 contaminants measured
- Alta Municipal Water Plant (2024)1 contaminants measured
- Lakeside Water Supply (2023)1 contaminants measured
- Linn Grove Water Works (2025)1 contaminants measured
- Marathon Light & Water Department (2024)1 contaminants measured
- Newell Water Treatment Plant (2025)1 contaminants measured
- Rembrandt Water Supply (2023)1 contaminants measured
- Rembrandt Enterprises Inc (rembrandt) (2025)1 contaminants measured
- Sioux Rapids Water Department (2024)1 contaminants measured
- Storm Lake Water Treatment Plant (2025)1 contaminants measured
- Lake Creek Homeowners Association (2023)1 contaminants measured
- Truesdale Water Supply (2024)1 contaminants measured
- Allison Water Supply (2024)1 contaminants measured
- Aplington Water Supply (2024)1 contaminants measured
- Bristow Muni Water Supply (2023)1 contaminants measured
- Clarksville Water Supply (2024)1 contaminants measured
- Dumont Water Supply (2023)1 contaminants measured
- Greene Muni Water Supply (2023)1 contaminants measured
- New Hartford Water Supply (2025)1 contaminants measured
- Shell Rock Muni Water Supp (2024)1 contaminants measured
- Poet Biorefining-shell Rock Llc (2024)1 contaminants measured
- Twin Lakes Utilities (2024)1 contaminants measured
- Farnhamville Water Supply (2023)1 contaminants measured
- Jolley Water Supply (2024)1 contaminants measured
- Knierim Water Supply (2025)1 contaminants measured
- Lake City Water Supply (2023)1 contaminants measured
- Manson Water Supply (2025)1 contaminants measured
- Pomeroy Water Supply (2024)1 contaminants measured
- Rinard Water Supply (2023)1 contaminants measured
- Rockwell City Water Supply (2024)1 contaminants measured
- Somers Water Works (2025)1 contaminants measured
- Lohrville Water Supply (2024)1 contaminants measured
- Yetter Municipal Water Supply (2024)1 contaminants measured
- West Central Rwa - Nish System (2023)1 contaminants measured
- West Central Rwa-boyer System (2023)1 contaminants measured
- Arcadia Water Supply (2023)1 contaminants measured
- Breda Water Supply (2024)1 contaminants measured
- Carroll Municipal Water Supply (2023)1 contaminants measured
- Coon Rapids Municipal Utilities (2024)1 contaminants measured
- Dedham Water Supply (2024)1 contaminants measured
- Glidden Water Supply (2023)1 contaminants measured
- Halbur Water Supply (2023)1 contaminants measured
- Lanesboro Water Works (2025)1 contaminants measured
- Lidderdale Water Supply (2023)1 contaminants measured
- Manning Water Supply (2023)1 contaminants measured
- Ralston Water Treatment Plant (2023)1 contaminants measured
- Templeton Water Supply (2023)1 contaminants measured
- Anita Municipal Utilities (2024)1 contaminants measured
- Atlantic Municipal Utilities (2023)1 contaminants measured
- Atlantic Head Start (2025)1 contaminants measured
- Cumberland Water Supply (2024)1 contaminants measured
- Griswold Water Supply (2024)1 contaminants measured
- Lewis Water Supply (2025)1 contaminants measured
- Vermeer (griswold) (2024)1 contaminants measured
- Massena Water Supply (2025)1 contaminants measured
- Wiota Water Works (2024)1 contaminants measured
- Coach Road Well Association (2025)1 contaminants measured
- West Branch Mhp (2025)1 contaminants measured
- Bennett Waterworks (2023)1 contaminants measured
- Clarence Water Supply (2024)1 contaminants measured
- Durant Water Supply (2024)1 contaminants measured
- Pioneer Hi-bred Durant Plant (2025)1 contaminants measured
- Lowden Water Supply (2024)1 contaminants measured
- Mechanicsville Water Dept (2023)1 contaminants measured
- Yankee Grove Part 3 (2023)1 contaminants measured
- Hwh Corporation (2023)1 contaminants measured
- Little Bear Campground (2025)1 contaminants measured
- Stanwood Water Supply (2023)1 contaminants measured
- River Valley Cooperative (2024)1 contaminants measured
- Tipton Water Supply (2023)1 contaminants measured
- West Branch Water Works (2023)1 contaminants measured
- Scattergood Friends School (2025)1 contaminants measured
- Long Beach Mobile Park (2023)1 contaminants measured
- Four Oaks (mason City) (2025)1 contaminants measured
- Clear Lake Water Department (2025)1 contaminants measured
- Mason City Water Department (2023)1 contaminants measured
- Heidelberg Materials Us Cement Llc (2024)1 contaminants measured
- Meservey Water Supply (2024)1 contaminants measured
- Plymouth Water Supply (2025)1 contaminants measured
- Rockwell Water Supply (2025)1 contaminants measured
- Swaledale Water Supply (2023)1 contaminants measured
- Thornton Water Supply (2023)1 contaminants measured
- Ventura Water Works (2025)1 contaminants measured
- Hilltop Village Mhc, Inc. (2024)1 contaminants measured
- Cherokee Rws- Mill Creek Subsystem (2024)1 contaminants measured
- Aurelia Water Supply (2024)1 contaminants measured
- Cherokee Rws - Cherokee Subsystem (2023)1 contaminants measured
- Cherokee Water Supply - Plant 1 (2025)1 contaminants measured
- Rj Thomas Manufacturing Co Inc (2024)1 contaminants measured
- Cleghorn Water Supply (2023)1 contaminants measured
- Larrabee Municipal Water Works (2024)1 contaminants measured
- Marcus Water Supply (2024)1 contaminants measured
- Meriden Municipal Water Supply (2023)1 contaminants measured
- Quimby Water Supply (2023)1 contaminants measured
- Washta Water Supply (2024)1 contaminants measured
- Alta Vista Water Department (2023)1 contaminants measured
- Fredericksburg Water Supply (2023)1 contaminants measured
- Ionia Water Supply (2023)1 contaminants measured
- Lawler Water Supply (2023)1 contaminants measured
- Nashua Water Supply (2025)1 contaminants measured
- New Hampton Water Supply (2023)1 contaminants measured
- Murray Water Works (2024)1 contaminants measured
- Osceola Water Works (2024)1 contaminants measured
- Sirwa #3 (osceola) (2024)1 contaminants measured
- Iowa Lakes Regional Water (2023)1 contaminants measured
- Dickens Water Works (2023)1 contaminants measured
- Everly Water Supply (2023)1 contaminants measured
- Fostoria Municipal Water Supply (2024)1 contaminants measured
- Peterson Municipal Water Supply (2024)1 contaminants measured
- Spencer Municipal Water Utility (2023)1 contaminants measured
- Clayton Water Supply (2023)1 contaminants measured
- Edgewood Water Supply (2023)1 contaminants measured
- Elkader Muni Water Dept (2024)1 contaminants measured
- Farmersburg Waterworks (2024)1 contaminants measured
- Garnavillo Water Supply (2024)1 contaminants measured
- Guttenberg Water Utility (2024)1 contaminants measured
- Luana Water Works (2024)1 contaminants measured
- Prairie Farms Dairy, Inc. (2024)1 contaminants measured
- Marquette Water Supply (2024)1 contaminants measured
- Mcgregor Water Dept (2023)1 contaminants measured
- Walters Mobile Home Park (2021)1 contaminants measured
- Breezy Pointe Subdivision (2024)1 contaminants measured
- Monona Municipal Water Dept (2023)1 contaminants measured
- Saint Olaf Water Supply (2025)1 contaminants measured
- Strawberry Point Water Supply (2025)1 contaminants measured
- Volga Water Supply (2023)1 contaminants measured
- Winding Brook Mobile Home Park (2025)1 contaminants measured
- Andover Water Supply (2023)1 contaminants measured
- Calamus Water Supply (2024)1 contaminants measured
- Camanche Water Supply (2023)1 contaminants measured
- Charlotte Water Works (2024)1 contaminants measured
- Iowa-american Wtr Co-clinton District (2025)1 contaminants measured
- Equistar Chemicals Lp (2024)1 contaminants measured
- Rail One Usa (2025)1 contaminants measured
- Delmar Water Supply (2023)1 contaminants measured
- De Witt Water Supply (2025)1 contaminants measured
- Brookhill Estates (2023)1 contaminants measured
- Cardinal Valley Estates 3rd Addition (2025)1 contaminants measured
- Goose Lake Muni Water System (2025)1 contaminants measured
- Grand Mound Water Supply (2024)1 contaminants measured
- Lost Nation Water Supply (2023)1 contaminants measured
- Iowa-american Water (low Moor) (2024)1 contaminants measured
- Welton Water Supply (2023)1 contaminants measured
- Wheatland City Water Supply (2025)1 contaminants measured
- Charter Oak Water Supply (2024)1 contaminants measured
- Deloit Muni Water Supply (2023)1 contaminants measured
- Denison Water Supply (2025)1 contaminants measured
- W Central Rwa - Denison Subsys (2025)1 contaminants measured
- Dow City Water Works (2023)1 contaminants measured
- Kiron Water Supply (2025)1 contaminants measured
- Manilla Muni Service Dept (2023)1 contaminants measured
- Schleswig Munic Water Supply (2024)1 contaminants measured
- Vail Water Supply (2025)1 contaminants measured
- Westside Water Supply (2024)1 contaminants measured
- Adel Municipal Water Works (2024)1 contaminants measured
- Dallas Center Water Supply (2024)1 contaminants measured
- Dawson Water Works (2025)1 contaminants measured
- De Soto Water Supply (2025)1 contaminants measured
- Dexter Water Supply (2024)1 contaminants measured
- Granger Muni Water Supply (2024)1 contaminants measured
- Minburn Waterworks (2024)1 contaminants measured
- Perry Municipal Water Works (2025)1 contaminants measured
- Redfield Water Works (2024)1 contaminants measured
- Van Meter Municipal Water Work (2023)1 contaminants measured
- Wildwood Water Corporation (2024)1 contaminants measured
- River Oaks Development (2023)1 contaminants measured
- Deer Hunters Run (2023)1 contaminants measured
- Waukee Water Supply (2025)1 contaminants measured
- Midwest Country Estates (2023)1 contaminants measured
- Xenia Rwd (des Moines) (2023)1 contaminants measured
- Woodward Water Supply (2024)1 contaminants measured
- Xenia Rwd (woodward) (2025)1 contaminants measured
- Bloomfield Muni Water Dept (2024)1 contaminants measured
- Pulaski Municipal Water Dept (2024)1 contaminants measured
- Sirwa #3 (leon) (2024)1 contaminants measured
- Garden Grove Water Supply (2025)1 contaminants measured
- Lamoni Municipal Utilities (2025)1 contaminants measured
- Leon Water Supply (2024)1 contaminants measured
- Penn Center Inc (2024)1 contaminants measured
- Colesburg Water Supply (2023)1 contaminants measured
- Delaware Municipal Water Supply (2023)1 contaminants measured
- Delhi Water Supply (2024)1 contaminants measured
- Earlville Muni Water Supply (2024)1 contaminants measured
- Eip Manufacturing, Llc (2024)1 contaminants measured
- Hopkinton Municipal Utilities (2025)1 contaminants measured
- Manchester Water Supply (2025)1 contaminants measured
- Ryan Water Supply (2023)1 contaminants measured
- Green Acres Mobile Home Park (2023)1 contaminants measured
- Timberline Estates, Ltd. (2024)1 contaminants measured
- Iowa Army Ammunition Plant (2025)1 contaminants measured
- Burlington Municipal Waterworks (2025)1 contaminants measured
- Danville Water Supply (2023)1 contaminants measured
- Mediapolis Water Supply (2025)1 contaminants measured
- Mediapolis Village Court (2025)1 contaminants measured
- Middletown Water Supply (2023)1 contaminants measured
- West Burlington Muni. Water Supply (2025)1 contaminants measured
- Arnolds Park Water Department (2023)1 contaminants measured
- Lake Park Municipal Utilities (2024)1 contaminants measured
- Milford Municipal Utilities (2023)1 contaminants measured
- Iowa Lakes Regional Water - Osgood (2025)1 contaminants measured
- Okoboji Water Supply (2023)1 contaminants measured
- Spirit Lake Waterworks (2025)1 contaminants measured
- Superior Water System (2025)1 contaminants measured
- Terril Municipal Waterworks (2024)1 contaminants measured
- Wahpeton Water Supply (2024)1 contaminants measured
- West Okoboji (2023)1 contaminants measured
- Table Mound Park (2023)1 contaminants measured
- Lore Mound Mobile Home Park (2024)1 contaminants measured
- Camp Granada (2023)1 contaminants measured
- Spring Valley Park (2023)1 contaminants measured
- North End Mobile Home Park (2023)1 contaminants measured
- Ace Mobile Home Park (2025)1 contaminants measured
- Gavin Estates (2024)1 contaminants measured
- Corporation of New Melleray (2022)1 contaminants measured
- Asbury Municipal Water System (2024)1 contaminants measured
- Bernard Water System (2024)1 contaminants measured
- Cascade Municipal Water Supply (2025)1 contaminants measured
- Country Hills Water Corp (2025)1 contaminants measured
- Dubuque Water Works (2023)1 contaminants measured
- John Deere Dubuque Works (2023)1 contaminants measured
- Quality Water, Inc. #2 (k-l) (2023)1 contaminants measured
- Hickory Acres (2025)1 contaminants measured
- Lore Oaks Homeowners Assn. (2023)1 contaminants measured
- Green Brier Subdivision (2023)1 contaminants measured
- Regency West Subdivision (2024)1 contaminants measured
- Star Water (2023)1 contaminants measured
- Shagbark Estates (2024)1 contaminants measured
- Sageville Elementary School (2022)1 contaminants measured
- Super 20 Mobile Home Court (2024)1 contaminants measured
- Terrace Heights (2024)1 contaminants measured
- Alpine Park (2025)1 contaminants measured
- Dyersville Municipal Water Co (2024)1 contaminants measured
- Big River United Energy Llc (2025)1 contaminants measured
- Epworth Water Supply (2023)1 contaminants measured
- Farley Water Supply (2023)1 contaminants measured
- Holy Cross Water Supply (2023)1 contaminants measured
- Luxemburg Water Supply (2023)1 contaminants measured
- New Vienna Water Supply (2023)1 contaminants measured
- Peosta Water Supply (2025)1 contaminants measured
- Burds Green Acres Subdivision (2025)1 contaminants measured
- Thunder Hills Home & Utility Assoc. (2023)1 contaminants measured
- Worthington Water Supply (2024)1 contaminants measured
- Armstrong Water Supply (2025)1 contaminants measured
- Oak Shores (2023)1 contaminants measured
- Dolliver Muni Water Supply (2024)1 contaminants measured
- Estherville Water Treatment Plant (2024)1 contaminants measured
- Ringsted Water Supply (2024)1 contaminants measured
- Wallingford Municipal Waterworks (2024)1 contaminants measured
- Arlington Water Supply (2024)1 contaminants measured
- Starmont Community School District (2024)1 contaminants measured
- Clermont Water Supply (2023)1 contaminants measured
- Elgin Municipal Water Supply (2024)1 contaminants measured
- North Fayette Valley Community School (2024)1 contaminants measured
- Fayette Water Supply (2024)1 contaminants measured
- Hawkeye Water Supply (2025)1 contaminants measured
- Maynard Water Supply (2025)1 contaminants measured
- Oelwein Municipal Water Works (2025)1 contaminants measured
- Wadena Water System (2023)1 contaminants measured
- Waucoma Water Supply (2024)1 contaminants measured
- Westgate Water Supply (2025)1 contaminants measured
- West Union Water Supply (2023)1 contaminants measured
- Hillandale Iowa Ii Llp (2025)1 contaminants measured
- Charles City Water Supply (2025)1 contaminants measured
- Colwell, City of (2025)1 contaminants measured
- Floyd Muni Water Supply (2023)1 contaminants measured
- Marble Rock Water Supply (2023)1 contaminants measured
- Nora Springs Water Supply (2023)1 contaminants measured
- Rockford Water Supply (2023)1 contaminants measured
- Rudd Waterworks (2023)1 contaminants measured
- Beeds Lake Home Owners Association (2023)1 contaminants measured
- Alexander Water Dept (2024)1 contaminants measured
- Coulter Water Supply (2023)1 contaminants measured
- Geneva Water Works (2024)1 contaminants measured
- Hampton Muni Water Works (2023)1 contaminants measured
- Dorell Drive Home Owners Association (2025)1 contaminants measured
- Hansell Water Department (2025)1 contaminants measured
- Latimer Water Supply (2024)1 contaminants measured
- Irua (dows) (2025)1 contaminants measured
- Sheffield Water Supply (2025)1 contaminants measured
- Lemar Industries (2025)1 contaminants measured
- Farragut Water Supply (2024)1 contaminants measured
- Hamburg Water Supply (2025)1 contaminants measured
- Sapp Bros Travel Centers (2024)1 contaminants measured
- Randolph Water Works (2024)1 contaminants measured
- Riverton Water Works (2023)1 contaminants measured
- Sidney Water Supply (2025)1 contaminants measured
- Tabor Water Supply (2024)1 contaminants measured
- Thurman Water Works (2023)1 contaminants measured
- Churdan Water Supply (2024)1 contaminants measured
- Grand Jct Municipal Water Dept (2023)1 contaminants measured
- Jefferson Water Department (2025)1 contaminants measured
- Beaman Water Supply (2023)1 contaminants measured
- Conrad Water Supply (2025)1 contaminants measured
- Dike Water Supply (2023)1 contaminants measured
- Grundy Center Water Supply (2024)1 contaminants measured
- Holland Water Supply (2023)1 contaminants measured
- Stout Water Supply (2025)1 contaminants measured
- Wellsburg Water Supply (2023)1 contaminants measured
- Lake Panorama Water Company (2024)1 contaminants measured
- Bayard Water Supply (2023)1 contaminants measured
- Poet Biorefining (coon Rapids) (2023)1 contaminants measured
- Casey Water Supply (2023)1 contaminants measured
- Guthrie Center Muni Water Work (2023)1 contaminants measured
- Jamaica Water Supply (2022)1 contaminants measured
- Panora Water Works (2025)1 contaminants measured
- Yale Water Supply (2023)1 contaminants measured
- Blairsburg Water Supply (2025)1 contaminants measured
- Ellsworth Public Water Supply (2025)1 contaminants measured
- Jewell Water Supply (2025)1 contaminants measured
- Randall Water Supply (2024)1 contaminants measured
- Stratford Muni Water Dept (2023)1 contaminants measured
- Webster City Water Supply (2024)1 contaminants measured
- Williams Water Supply (2024)1 contaminants measured
- Flying J No 572 (2024)1 contaminants measured
- Britt Water Works (2024)1 contaminants measured
- Michael Foods - Britt (2025)1 contaminants measured
- New Horizon Coop/opal Foods - Britt (2024)1 contaminants measured
- Corwith Water Supply (2023)1 contaminants measured
- Hawkeye Pride Egg Farm Llp (2023)1 contaminants measured
- Crystal Lake Water Supply (2025)1 contaminants measured
- Garner Water Works (2023)1 contaminants measured
- Goodell Water Supply (2023)1 contaminants measured
- Kanawha Water Supply (2023)1 contaminants measured
- Klemme Water Works (2024)1 contaminants measured
- Woden Water Supply (2023)1 contaminants measured
- Ackley Municipal Water Works (2025)1 contaminants measured
- Alden Water Supply (2024)1 contaminants measured
- Iowa Limestone Co (2025)1 contaminants measured
- Eldora Water Supply (2024)1 contaminants measured
- Hubbard Water Supply (2023)1 contaminants measured
- Iowa Falls Water Department (2025)1 contaminants measured
- Chase Mobile Home Park (2024)1 contaminants measured
- New Providence Water Supply (2025)1 contaminants measured
- Radcliffe Municipal Water (2024)1 contaminants measured
- Steamboat Rock Water Dept (2023)1 contaminants measured
- Union Water Supply (2023)1 contaminants measured
- Sunnyside Village Mhp Llc (2025)1 contaminants measured
- Valley View Water Association (2025)1 contaminants measured
- Dunlap Water Supply (2025)1 contaminants measured
- Little Sioux Water Department (2024)1 contaminants measured
- Logan Water Supply (2023)1 contaminants measured
- Magnolia, City of (2025)1 contaminants measured
- Missouri Valley Water Supply (2025)1 contaminants measured
- Modale Water Supply (2024)1 contaminants measured
- Mondamin Water Supply (2023)1 contaminants measured
- Pisgah Water Supply (2023)1 contaminants measured
- Woodbine Water Department (2023)1 contaminants measured
- Hillsboro Water Works (2025)1 contaminants measured
- Mount Pleasant Municipal Utilities (2024)1 contaminants measured
- Westwood Water Supply (2021)1 contaminants measured
- Rathbun Regional Water (mount Pleasant) (2023)1 contaminants measured
- New London Munic Water Dept (2024)1 contaminants measured
- Olds Municipal Water Dept (2024)1 contaminants measured
- Rome Water Supply (2023)1 contaminants measured
- Salem Water Supply (2025)1 contaminants measured
- Wayland Water Supply (2023)1 contaminants measured
- Winfield Muni Water Dept (2024)1 contaminants measured
- Chester Water Supply (2024)1 contaminants measured
- Pine Grove Mennonite School (2024)1 contaminants measured
- Cresco Waterworks (2024)1 contaminants measured
- Elma Water Supply (2023)1 contaminants measured
- Lime Springs Water Supply (2025)1 contaminants measured
- Featherlite Manufacturing, Llc. (2025)1 contaminants measured
- Riceville Water Supply (2024)1 contaminants measured
- Iowa Contract Fabricators Inc (2024)1 contaminants measured
- Bode Municipal Water Supply (2024)1 contaminants measured
- Dakota City Water Supply (2025)1 contaminants measured
- Humboldt Municipal Water Dept (2025)1 contaminants measured
- Precision Pulley and Idler-humboldt (2023)1 contaminants measured
- Renwick Munic Water Supply (2024)1 contaminants measured
- Rutland Water Supply (2024)1 contaminants measured
- Thor Water Works (2023)1 contaminants measured
- Arthur Municipal Water Supply (2023)1 contaminants measured
- Battle Creek Water Supply (2023)1 contaminants measured
- Galva Water Supply (2024)1 contaminants measured
- Holstein, City of (2023)1 contaminants measured
- Ida Grove Water Utility (2024)1 contaminants measured
- Iowa Valley Estates (2024)1 contaminants measured
- Waldenburg Community Water System (2024)1 contaminants measured
- Ladora Water Supply (2025)1 contaminants measured
- Marengo Water Supply (2023)1 contaminants measured
- Amana Society Water System North (2024)1 contaminants measured
- Millersburg Water Dept (2023)1 contaminants measured
- North English Water Department (2024)1 contaminants measured
- South Amana Water Supply (2024)1 contaminants measured
- Poweshiek Water Association (iac) (2025)1 contaminants measured
- Williamsburg Public Water Supply (2024)1 contaminants measured
- Kinze Manufacturing Inc (2023)1 contaminants measured
- Andrew Water Supply (2024)1 contaminants measured
- Baldwin Water Supply (2024)1 contaminants measured
- Bellevue Municipal Utilities (2025)1 contaminants measured
- Eiruss Droesslers (2025)1 contaminants measured
- La Motte Water Supply (2025)1 contaminants measured
- Maquoketa Municipal Water (2025)1 contaminants measured
- Miles Water Department (2024)1 contaminants measured
- Monmouth Water Supply (2024)1 contaminants measured
- Preston Muni Water Supply (2023)1 contaminants measured
- Sabula Water Supply (2023)1 contaminants measured
- Springbrook Water Dept (2024)1 contaminants measured
- Baxter Water Supply (2023)1 contaminants measured
- Colfax Water Supply (2024)1 contaminants measured
- Kellogg Water Supply (2024)1 contaminants measured
- Lynnville Water Dept (2024)1 contaminants measured
- Mingo Water Department (2025)1 contaminants measured
- Monroe Water Supply (2024)1 contaminants measured
- Newton Water Supply (2023)1 contaminants measured
- Sunrise Terrace Mhc (2023)1 contaminants measured
- Prairie City Water Works (2023)1 contaminants measured
- Sully Muni Water Works (2023)1 contaminants measured
- Batavia Water Works (2023)1 contaminants measured
- Fairfield Water Supply (2025)1 contaminants measured
- Fairfield Estates Mobile Home Park (2025)1 contaminants measured
- Jefferson County Rural Water District (2024)1 contaminants measured
- Libertyville Water Works (2025)1 contaminants measured
- Lockridge Muni Water Supply (2024)1 contaminants measured
- Maharishi Vedic City Water Supply (2025)1 contaminants measured
- Ila Campus Llc (2024)1 contaminants measured
- Timber Trails Homeowners Association (2023)1 contaminants measured
- Lakeview Knolls Homeowners Assn. (2023)1 contaminants measured
- River Heights Property Owners Assoc. (2024)1 contaminants measured
- Riverview Estates (2025)1 contaminants measured
- Iowa City Mhp Llc (2024)1 contaminants measured
- Sunrise Village Mobile Home Pk (2024)1 contaminants measured
- Parkview Mobile Home Court (2024)1 contaminants measured
- Kesslers Homeowners Assn (2024)1 contaminants measured
- Timberlake (2025)1 contaminants measured
- North Twin View Heights (2023)1 contaminants measured
- Coralville Lake Terrace (2024)1 contaminants measured
- Coralville Lake Manor (2023)1 contaminants measured
- Twin Valley Lakes Improvement Assn (2025)1 contaminants measured
- Lake Crest Manor Hoa #3 (2025)1 contaminants measured
- Polk Avenue Water Association (2023)1 contaminants measured
- Oakdale Hospital Water System (2025)1 contaminants measured
- Coralville Muni Water System (2024)1 contaminants measured
- Hawkeye Ready-mix (coralville) (2025)1 contaminants measured
- Western Hills (mobile) Estates (2024)1 contaminants measured
- Farmers All Natural Creamery (2024)1 contaminants measured
- Hills Water Supply (2023)1 contaminants measured
- Sharon Bethel Church/school (2024)1 contaminants measured
- Iowa City Water Department (2023)1 contaminants measured
- University Water System (2024)1 contaminants measured
- Lyn-den Heights Homeowners Assoc. (2025)1 contaminants measured
- Oak Ridge Lake Estates (2025)1 contaminants measured
- Spring Valley Homeowners Assn. (2024)1 contaminants measured
- Makada Homeowners Association (2023)1 contaminants measured
- Cherry Hills Subdivision (2025)1 contaminants measured
- Wendram Bluff Homes Water System (2024)1 contaminants measured
- Forestgate Subdivision (2024)1 contaminants measured
- Northwood Estates (2024)1 contaminants measured
- Woodland Heights Homeowners Assoc. (2024)1 contaminants measured
- Gateway Development (2023)1 contaminants measured
- Redwing Estates Hoa (2023)1 contaminants measured
- Lake Ridge, Incorporated (2023)1 contaminants measured
- Turkey Creek Development (2025)1 contaminants measured
- Stoney Pointe Subdivision (2023)1 contaminants measured
- The Meadows (2024)1 contaminants measured
- Westcott Heights Parts 1 & 2 (2025)1 contaminants measured
- Prairie View Estates Assoc Johnson Cnty (2023)1 contaminants measured
- Westcott Heights Hoa Part Three (2023)1 contaminants measured
- Woodland Ridge Estates (2024)1 contaminants measured
- Far Horizons Subdivision (2023)1 contaminants measured
- Rapid Creek Ridge (2025)1 contaminants measured
- Modern Manor, Inc (2025)1 contaminants measured
- Iowa City Regency Mobile Home Community (2025)1 contaminants measured
- Lone Tree Muni Water System (2024)1 contaminants measured
- Syngenta Seeds Llc (2025)1 contaminants measured
- North Liberty Water Supply (2025)1 contaminants measured
- Dans Overhead Doors (2023)1 contaminants measured
- Cumberland Ridge First Addition (2025)1 contaminants measured
- Longview Estates Hoa (north Liberty) (2024)1 contaminants measured
- Oxford Water Supply (2023)1 contaminants measured
- Beyonder Getaway at Sleepy Hollow (2023)1 contaminants measured
- Indian Hills Home Owners Association (2025)1 contaminants measured
- Corridor Ridge Subdivision (2024)1 contaminants measured
- Lake Woods Hoa (2024)1 contaminants measured
- Jacobs Landing Hoa (2024)1 contaminants measured
- Shueyville United Methodist Church (2024)1 contaminants measured
- Solon Water Dept (2023)1 contaminants measured
- Twin View Heights (2025)1 contaminants measured
- Lake Vista Subdivision (2025)1 contaminants measured
- Royal Oaks Subdivision (2023)1 contaminants measured
- Orchard View Estates (2023)1 contaminants measured
- Lake Macbride Heights Hoa (2023)1 contaminants measured
- Gallery Acres West (2023)1 contaminants measured
- Chain Ridge Subdivision (2023)1 contaminants measured
- Hidden Acres Subdivision (2023)1 contaminants measured
- Macbride Estates Development (2023)1 contaminants measured
- Mcbride Pointe Third Master Maintenance (2025)1 contaminants measured
- Winchester Heights Subdivision (2023)1 contaminants measured
- Orchard Heights Subdivision (2023)1 contaminants measured
- Fisher Well Owners Association (2024)1 contaminants measured
- Little Angels Child Care Center (2024)1 contaminants measured
- Tiffin Water Supply (2023)1 contaminants measured
- Iadu Clear Mhp Llc (2024)1 contaminants measured
- Frytown Water Coop (2023)1 contaminants measured
- Fairview Terrrace Mobile Home Park Llc (2024)1 contaminants measured
- Montipark Llc (2020)1 contaminants measured
- Anamosa State Penitentiary (2024)1 contaminants measured
- Anamosa Municipal Water Supply (2024)1 contaminants measured
- Center Junction (eiruss) (2025)1 contaminants measured
- Martelle Water Works (2023)1 contaminants measured
- Monticello Water Supply (2025)1 contaminants measured
- Bacon Addition (2025)1 contaminants measured
- St Johns Lutheran Church (2024)1 contaminants measured
- Morley Municipal Water Supply (2023)1 contaminants measured
- Olin Water Supply (2024)1 contaminants measured
- Onslow Water Supply (2023)1 contaminants measured
- Oxford Junction Water Supply (2024)1 contaminants measured
- Wyoming Water System (2025)1 contaminants measured
- Delta Water Supply (2025)1 contaminants measured
- Harper Water Supply (2023)1 contaminants measured
- Hedrick Water Supply (2023)1 contaminants measured
- Keota Water Dept (2024)1 contaminants measured
- Keswick Water System (2024)1 contaminants measured
- Richland Water Supply (2025)1 contaminants measured
- Sigourney Muni Water Works (2023)1 contaminants measured
- South English Water Supply (2025)1 contaminants measured
- Webster Municipal Water Works (2024)1 contaminants measured
- What Cheer Water Supply (2024)1 contaminants measured
- Southdale Home Owners Assn (2023)1 contaminants measured
- Oak Lake Maintenance, Inc. (2024)1 contaminants measured
- Algona Municipal Utilities (2025)1 contaminants measured
- Ag Processing Inc - Algona (2025)1 contaminants measured
- Woodlyn Hills (2025)1 contaminants measured
- Murphy Family Farms - Feed Mill (2024)1 contaminants measured
- Bancroft Water Supply (2023)1 contaminants measured
- North Union Elementary School (2024)1 contaminants measured
- Lakota Water Supply (2024)1 contaminants measured
- Valero Lakota Plant (2023)1 contaminants measured
- Ledyard Water Supply (2024)1 contaminants measured
- Lone Rock Water Supply (2024)1 contaminants measured
- Lu Verne Water Supply (2023)1 contaminants measured
- Swea City Water Supply (2023)1 contaminants measured
- Titonka Water Supply (2023)1 contaminants measured
- Wesley Water Supply (2023)1 contaminants measured
- Whittemore Muni Water Supply (2023)1 contaminants measured
- Donnellson Muni Water Works (2023)1 contaminants measured
- Ft Madison Muni Water Works (2024)1 contaminants measured
- Conagra Foods Packaged Foods Llc (2023)1 contaminants measured
- Keokuk Municipal Water Works (2023)1 contaminants measured
- Montrose Water Works (2025)1 contaminants measured
- West Point Muni Water System (2024)1 contaminants measured
- Cedar Terrace Mhc (2024)1 contaminants measured
- Carlton Mobile Home Court (2023)1 contaminants measured
- Alburnett Water Supply (2025)1 contaminants measured
- Bertram Water Supply (2025)1 contaminants measured
- Cedar Rapids Water Department (2025)1 contaminants measured
- Central Iowa Power Cooperative (2023)1 contaminants measured
- Brittany Estates Homeowners Association (2023)1 contaminants measured
- Poweshiek Water Association (cr) (2025)1 contaminants measured
- Four Oaks Family and Childrens Services (2023)1 contaminants measured
- Center Point Water Supply (2023)1 contaminants measured
- Central City Water Supply (2023)1 contaminants measured
- Coggon Water Department (2024)1 contaminants measured
- North Linn High School / Middle School (2025)1 contaminants measured
- Ely Water Supply (2024)1 contaminants measured
- Fairfax Water Supply (2024)1 contaminants measured
- West Post Estates Addition (2023)1 contaminants measured
- Gaddis Estates Hoa (2025)1 contaminants measured
- Hiawatha Water Dept (2023)1 contaminants measured
- Lisbon Water Supply (2023)1 contaminants measured
- Windy Ridge Well Association (2025)1 contaminants measured
- Glenbrook Cove Area (2024)1 contaminants measured
- Pioneer Hi Bred Marion Research (2025)1 contaminants measured
- Meadow Knolls Addition (2024)1 contaminants measured
- Marion Village (2023)1 contaminants measured
- Eagle Ridge (2025)1 contaminants measured
- Mount Vernon Water Supply (2024)1 contaminants measured
- Us Nameplate Company Inc (2025)1 contaminants measured
- P & K Midwest (mt Vernon) (2025)1 contaminants measured
- Palo Water Supply (2024)1 contaminants measured
- Deer Ridge Homeowners Water Assc. (2023)1 contaminants measured
- Prairieburg Muni. Water Supply (2025)1 contaminants measured
- Springville Water Supply (2024)1 contaminants measured
- Midway Water and Lighting (2025)1 contaminants measured
- Vern Acres (oliphant Addition) (2024)1 contaminants measured
- Country Manor Estates (2025)1 contaminants measured
- Big Creek Bluffs (2024)1 contaminants measured
- Oak Valley (2025)1 contaminants measured
- Chestnut Ridge (2023)1 contaminants measured
- Glenn Oaks Addition (2025)1 contaminants measured
- Crestwood Acres (2024)1 contaminants measured
- Yankee Grove Hoa (2024)1 contaminants measured
- Twin Knolls Fourth/fifth Addition (2024)1 contaminants measured
- Walker Water Works (2025)1 contaminants measured
- Louisa Co Law Enforcement Ctr (2025)1 contaminants measured
- Columbus City Public Water Supply (2023)1 contaminants measured
- Columbus Junction Water Supply (2024)1 contaminants measured
- Tyson Fresh Meats Inc (columbus Jct) (2023)1 contaminants measured
- Grandview Muni Water Dept (2024)1 contaminants measured
- Louisa Generating Station Ws 2 (2024)1 contaminants measured
- Louisa-muscatine Community School (2023)1 contaminants measured
- Morning Sun Water Department (2023)1 contaminants measured
- Oakville Water Supply (2025)1 contaminants measured
- Wapello Municipal Water Works (2024)1 contaminants measured
- Woodland Wapello Mobile Home Park (2023)1 contaminants measured
- Chariton Municipal Water Works (2025)1 contaminants measured
- Russell Water Supply (2022)1 contaminants measured
- Lyon-sioux Rws-doon (2024)1 contaminants measured
- Lyon-sioux Rws-boyden (2023)1 contaminants measured
- Lyon-sioux Rws-big Sioux (2025)1 contaminants measured
- Lyon-sioux Rws-rock Rapids (2024)1 contaminants measured
- Alvord Municipal Water Supply (2024)1 contaminants measured
- Doon Water Supply (2023)1 contaminants measured
- George Water Supply (2023)1 contaminants measured
- Inwood Water Supply (2024)1 contaminants measured
- Larchwood Water Supply (2024)1 contaminants measured
- Lester Water Supply (2024)1 contaminants measured
- Little Rock Water Supply (2025)1 contaminants measured
- Rock Rapids Municipal Water Works (2024)1 contaminants measured
- Earlham Municipal Waterworks (2023)1 contaminants measured
- Truro Waterworks (2024)1 contaminants measured
- Winterset Municipal Waterworks (2023)1 contaminants measured
- Mahaska Rural Water (new Sharon) (2024)1 contaminants measured
- Oskaloosa Municipal Water Dept (2025)1 contaminants measured
- Mahaska Rural Water System, Inc. (2023)1 contaminants measured
- Melcher-dallas Water Supply (2023)1 contaminants measured
- Irua - Pershing Utilities (2023)1 contaminants measured
- Bussey Water Supply (2025)1 contaminants measured
- Harvey Water Works (2024)1 contaminants measured
- Knoxville Water Works (2025)1 contaminants measured
- Wheel Estates Mhc (2025)1 contaminants measured
- Southshore Heights (2025)1 contaminants measured
- Colonial Terrace Mhp Llc (2025)1 contaminants measured
- Marion Co. Rural Water District (2024)1 contaminants measured
- Pella Water Works Department (2025)1 contaminants measured
- Sunrise Mill (2025)1 contaminants measured
- Pleasantville Water Works (2024)1 contaminants measured
- Vista Village Mhc (2025)1 contaminants measured
- Marshalltown Estates (2024)1 contaminants measured
- Albion Water Department (2024)1 contaminants measured
- Clemons Water Supply (2025)1 contaminants measured
- Gilman Water Supply (2024)1 contaminants measured
- Laurel Municipal Water Works (2024)1 contaminants measured
- Le Grand Water Works (2023)1 contaminants measured
- Liscomb Water Supply (2024)1 contaminants measured
- Marshalltown Water Works (2025)1 contaminants measured
- Sunset Village (2025)1 contaminants measured
- Melbourne Water Supply (2024)1 contaminants measured
- Rhodes Water Supply (2023)1 contaminants measured
- State Center Muni Water Dept (2025)1 contaminants measured
- Country Estates Mobile Home Park (2024)1 contaminants measured
- Pony Creek #1 Hoa (2025)1 contaminants measured
- Emerson Water Department (2024)1 contaminants measured
- Glenwood Municipal Utilities (2025)1 contaminants measured
- Hastings Water Supply (2023)1 contaminants measured
- Switch (2024)1 contaminants measured
- Henderson Water Department (2023)1 contaminants measured
- Malvern Water Supply (2025)1 contaminants measured
- Silver City Water Supply (2025)1 contaminants measured
- Absolute Energy Llc (2024)1 contaminants measured
- Osage Municipal Water Supply (2024)1 contaminants measured
- Orchard Water Works (2024)1 contaminants measured
- St Ansgar Water Supply (2025)1 contaminants measured
- Stacyville Water Supply (2025)1 contaminants measured
- Blencoe Municipal Waterworks (2024)1 contaminants measured
- Castana Municipal Water Supply (2023)1 contaminants measured
- Mapleton Municipal Water Plant (2023)1 contaminants measured
- Moorhead Water Supply (2024)1 contaminants measured
- Onawa Municipal Water Plant (2024)1 contaminants measured
- Soldier Water Supply (2025)1 contaminants measured
- Ute Water Supply (2025)1 contaminants measured
- Whiting Water Supply (2025)1 contaminants measured
- Albia Municipal Water Works (2025)1 contaminants measured
- Lovilia Municipal Water Department (2023)1 contaminants measured
- Elliott Water Supply (2024)1 contaminants measured
- Red Oak Water Supply (2025)1 contaminants measured
- Southwest Reg Water District (red Oak) (2024)1 contaminants measured
- Villisca Municipal Water Dept (2025)1 contaminants measured
- Ripleys Mhc Ia Llc (2024)1 contaminants measured
- Muscatine Mhp Llc (2025)1 contaminants measured
- Mecha Ceba Water System Association (2025)1 contaminants measured
- Kammerer Mobile Home Park (2025)1 contaminants measured
- Louisa Courts Mhp & Sales (2024)1 contaminants measured
- Atalissa Municipal Water Supply (2025)1 contaminants measured
- Ssab Iowa Inc (2024)1 contaminants measured
- Riverview Subdivision (2025)1 contaminants measured
- Rancho Valley Homeowners Assoc (2024)1 contaminants measured
- Muscatine Power & Water (2025)1 contaminants measured
- Bayer Crop Science Lp (2023)1 contaminants measured
- Mark Twain Meadows Homeowners (2025)1 contaminants measured
- Steamboat Association (2025)1 contaminants measured
- Hilltop Road Association #2 (2023)1 contaminants measured
- Rolling Acres Subdivision (2025)1 contaminants measured
- Fox Valley Acres (2025)1 contaminants measured
- Hilltop Farms #3rd Addition (2023)1 contaminants measured
- Valley View Estates #1 and #2 (2024)1 contaminants measured
- Hilltop Road Association #1 (2024)1 contaminants measured
- Park Plaza Mhp Llc (2024)1 contaminants measured
- Stockton Muni Water Supply (2023)1 contaminants measured