Michigan

Michigan drinking water quality

Every public water system in Michigan 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 Michigan 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.

1,975 water systems mapped in Michigan · showing the 800 with the most contaminant flags — explore them all on the map

Browse all 1,975 systems A–Z:12345

• Hermansville Housing Comm. (2023)
  1 contaminants measured· 1 at or above the limit
• Island Lake Apartments (2024)
  1 contaminants measured· 1 at or above the limit
• Taylor (2025)
  1 contaminants measured· 1 at or above the limit
• Walnut Lane Apartments (2024)
  1 contaminants measured· 1 at or above the limit
• Northern Pines (2023)
  1 contaminants measured· 1 at or above the limit
• Hess Lake Rv and Mobile Home Park (2024)
  1 contaminants measured· 1 at or above the limit
• Villa at Green Lake Estates (2025)
  1 contaminants measured· 1 at or above the limit
• Garland Hotel (2020)
  1 contaminants measured· 1 at or above the limit
• Boyne Mountain Resort (2023)
  1 contaminants measured· 1 at or above the limit
• Chateaux Du Lac Condominiums (2025)
  1 contaminants measured· 1 at or above the limit
• Chocolay Bungalows (2000)
  1 contaminants measured· 1 at or above the limit
• Crooked River Apartments (2012)
  1 contaminants measured· 1 at or above the limit
• Eagle Harbor Township (2008)
  1 contaminants measured· 1 at or above the limit
• Houghton Township (1993)
  1 contaminants measured· 1 at or above the limit
• El Rancho Alanson (2023)
  1 contaminants measured· 1 at or above the limit
• Elberta, Village of (2006)
  1 contaminants measured· 1 at or above the limit
• Garden City (2025)
  1 contaminants measured· 1 at or above the limit
• Grand Pointe Subdivision (2025)
  1 contaminants measured· 1 at or above the limit
• Grosse Ile Township (2025)
  1 contaminants measured· 1 at or above the limit
• Hale Homestead Apartments (2025)
  1 contaminants measured· 1 at or above the limit
• Hamlet Village Condominiums Association (2025)
  1 contaminants measured· 1 at or above the limit
• Hemingway Pointe Club Owners Association (2014)
  1 contaminants measured· 1 at or above the limit
• Hills of Walloon Association (2018)
  1 contaminants measured· 1 at or above the limit
• Houghton Lake Timber Apts. (2006)
  1 contaminants measured· 1 at or above the limit
• Inkster (2025)
  1 contaminants measured· 1 at or above the limit
• Lake Isabella Water Dist. #1 (2024)
  1 contaminants measured· 1 at or above the limit
• Kent Ridge Apartments (2024)
  1 contaminants measured· 1 at or above the limit
• Lakeside Club Condominiums (2001)
  1 contaminants measured· 1 at or above the limit
• Leoni Township (2025)
  1 contaminants measured· 1 at or above the limit
• Blue Lake Residences (2001)
  1 contaminants measured· 1 at or above the limit
• Madison Heights (2025)
  1 contaminants measured· 1 at or above the limit
• Marquette (2025)
  1 contaminants measured· 1 at or above the limit
• Melrose-chandler Water, Llc (2018)
  1 contaminants measured· 1 at or above the limit
• Nazarene Camp (2024)
  1 contaminants measured· 1 at or above the limit
• Nine Mile Pointe (1997)
  1 contaminants measured· 1 at or above the limit
• Rockland Township (2023)
  1 contaminants measured· 1 at or above the limit
• Rolling Meadows Water Assn. (2008)
  1 contaminants measured· 1 at or above the limit
• Shorewood Hills Subdivision (2025)
  1 contaminants measured· 1 at or above the limit
• Sugartree Apartments (2025)
  1 contaminants measured· 1 at or above the limit
• Treetops Resort (treetops North) (2023)
  1 contaminants measured· 1 at or above the limit
• Gun River Estates West (2018)
  1 contaminants measured· 1 at or above the limit
• Maple Knoll (2018)
  1 contaminants measured· 1 at or above the limit
• Hamlin Mobile Home Park (2020)
  1 contaminants measured· 1 at or above the limit
• Mason Mobile, Llc (2009)
  1 contaminants measured· 1 at or above the limit
• Algoma Estates (2000)
  1 contaminants measured· 1 at or above the limit
• Alan's Park - Fowlerville (2015)
  1 contaminants measured· 1 at or above the limit
• Tamarac Village (2000)
  1 contaminants measured· 1 at or above the limit
• Silver Creek Estates Mobile Home Court (2024)
  1 contaminants measured· 1 at or above the limit
• Morrice Meadows (2000)
  1 contaminants measured· 1 at or above the limit
• Country Manor (2024)
  1 contaminants measured· 1 at or above the limit
• Morbark Industries (2023)
  1 contaminants measured· 1 at or above the limit
• Fife Lake Elementary (2016)
  1 contaminants measured· 1 at or above the limit
• Vestaburg High School (2010)
  1 contaminants measured· 1 at or above the limit
• St. Mary's Elem & High School (2022)
  1 contaminants measured· 1 at or above the limit
• Hayes Middle School (1995)
  1 contaminants measured· 1 at or above the limit
• Beadle Lake Elementary (2005)
  1 contaminants measured· 1 at or above the limit
• Riley Elementary School (2011)
  1 contaminants measured· 1 at or above the limit
• Brighton Mazda (1994)
  1 contaminants measured· 1 at or above the limit
• Tilden Pit Service Bldg (old Empire) (2024)
  1 contaminants measured· 1 at or above the limit
• Autrain-onota Public School (2008)
  1 contaminants measured· 1 at or above the limit
• St. Michael School (2021)
  1 contaminants measured· 1 at or above the limit
• Zf/trw Automotive - Fenton (2018)
  1 contaminants measured· 1 at or above the limit
• Eagle Lake Elem School East Well (2024)
  1 contaminants measured· 1 at or above the limit
• Cheboygan Area Schools-admin Bldg (2013)
  1 contaminants measured· 1 at or above the limit
• Holton Middle/ High School (2005)
  1 contaminants measured· 1 at or above the limit
• Dimondale Elementary School (2015)
  1 contaminants measured· 1 at or above the limit
• Pellston Elementary (1997)
  1 contaminants measured· 1 at or above the limit
• Sresd Student Learning Center West (2023)
  1 contaminants measured· 1 at or above the limit
• O-n Minerals (mi)/carmeuse Lime - Calcit (2018)
  1 contaminants measured· 1 at or above the limit
• Maple Tree Montessori School (2019)
  1 contaminants measured· 1 at or above the limit
• Roscommon High School (2017)
  1 contaminants measured· 1 at or above the limit
• Green Oak Free Methodist Ch (2023)
  1 contaminants measured· 1 at or above the limit
• Pinckney Schools - Pathfinder School (2016)
  1 contaminants measured· 1 at or above the limit
• Centerpointe Building (2025)
  1 contaminants measured· 1 at or above the limit
• Riverside Hagar #6 School (2001)
  1 contaminants measured· 1 at or above the limit
• St. Michael's Church (2016)
  1 contaminants measured· 1 at or above the limit
• Lundin Mining-humboldt Mill (2024)
  1 contaminants measured· 1 at or above the limit
• 42nd Street Plaza (2024)
  1 contaminants measured· 1 at or above the limit
• Factoryville Christian School (2024)
  1 contaminants measured· 1 at or above the limit
• Harper Creek Comm Schls/admin Bldg (2005)
  1 contaminants measured· 1 at or above the limit
• Hartland Schools - Farms Middle School (2005)
  1 contaminants measured· 1 at or above the limit
• Leelanau Fruit Company (2012)
  1 contaminants measured· 1 at or above the limit
• Grand Ledge Pub Schls-operations Bldg (2019)
  1 contaminants measured· 1 at or above the limit
• Refresco (2023)
  1 contaminants measured· 1 at or above the limit
• Trinity Lutheran School (conklin) (2004)
  1 contaminants measured· 1 at or above the limit
• Pinckney Schools - Country Elementary (2008)
  1 contaminants measured· 1 at or above the limit
• Carbon Green Bioenergy, Llc (2009)
  1 contaminants measured· 1 at or above the limit
• Sawyer Nursery (2005)
  1 contaminants measured· 1 at or above the limit
• Fonda Place I (2024)
  1 contaminants measured· 1 at or above the limit
• Atherton Elementary School (2018)
  1 contaminants measured· 1 at or above the limit
• Learning Ladder (2003)
  1 contaminants measured· 1 at or above the limit
• Darling Ingredients (2024)
  1 contaminants measured· 1 at or above the limit
• Little Country Kids (2019)
  1 contaminants measured· 1 at or above the limit
• Oakland Schools-tech Campus Nw (2008)
  1 contaminants measured· 1 at or above the limit
• The Eagle One Building (2009)
  1 contaminants measured· 1 at or above the limit
• Brandon High School/bsd (2003)
  1 contaminants measured· 1 at or above the limit
• Leap Frog Daycare (2016)
  1 contaminants measured· 1 at or above the limit
• Msp Industries - North (1998)
  1 contaminants measured· 1 at or above the limit
• Remora Carbon - South (1998)
  1 contaminants measured· 1 at or above the limit
• Ann Arbor (2024)
  40 contaminants measured
• Benton Charter Township (2025)
  1 contaminants measured
• Dowagiac (2025)
  1 contaminants measured
• Grass Lake (2023)
  1 contaminants measured
• Grosse Pointe Woods (2025)
  1 contaminants measured
• Stambaugh Twp - Hagerman Lake (2024)
  1 contaminants measured
• Hamtramck (2025)
  1 contaminants measured
• Harper Woods (2025)
  1 contaminants measured
• Kellogg Biological Station (2023)
  1 contaminants measured
• L'arbre Croche Club (2023)
  1 contaminants measured
• River Rouge (2025)
  1 contaminants measured
• Sebewaing Light & Water (2023)
  1 contaminants measured
• Three Rivers (2025)
  1 contaminants measured
• Riversbend Mobile Home Park (2024)
  1 contaminants measured
• Capital Crossings (2024)
  1 contaminants measured
• New Era Christian School (2023)
  1 contaminants measured
• Chippewa Hills High School (2024)
  1 contaminants measured
• Chippewa Hills - Mosaic School (2025)
  1 contaminants measured
• Walkerville Pub Schls - South Well #2 (2023)
  1 contaminants measured
• Hartland Commerce Center 3 (2024)
  1 contaminants measured
• Grand Rapids (2025)
  22 contaminants measured
• Blue Water Village Well Site, Llc (2022)
  1 contaminants measured
• Dearborn Heights (2025)
  1 contaminants measured
• Eagle Village, Inc. (2024)
  1 contaminants measured
• Eastern Mi District Church of Nazarene (2024)
  1 contaminants measured
• Holly, Village of (2025)
  1 contaminants measured
• The Leelanau School (2023)
  1 contaminants measured
• Lynx Golf View (2024)
  1 contaminants measured
• Manton, City of (2024)
  1 contaminants measured
• Mattawan (2024)
  1 contaminants measured
• Misty Cove Senior Apartments (2023)
  1 contaminants measured
• Otisville, Village of (2023)
  1 contaminants measured
• Richmond Township (2024)
  1 contaminants measured
• Pinecrest Apartments (2022)
  1 contaminants measured
• Sandhill Manor (2024)
  1 contaminants measured
• South Haven Area Water & Sewer Authority (2025)
  1 contaminants measured
• Swift Lake Farms (2023)
  1 contaminants measured
• Selkirk Lake Mobile Home Park (2023)
  1 contaminants measured
• Swan Lake Mobile Estates (2024)
  1 contaminants measured
• Cambridge Village (2023)
  1 contaminants measured
• Marble Lake Resort & Marina (2023)
  1 contaminants measured
• Somerset Mobile Home Park (2023)
  1 contaminants measured
• Linden Place Mobile Home Park (2023)
  1 contaminants measured
• Westhaven Mobile Home Park, Llc (2023)
  1 contaminants measured
• State Road Country Living Mhc (2023)
  1 contaminants measured
• Summer Wood Estates (2024)
  1 contaminants measured
• Riverview Estates (2024)
  1 contaminants measured
• Willow Village (2023)
  1 contaminants measured
• Evergreen Mobile Home Community (2023)
  1 contaminants measured
• Evergreen Park (2024)
  1 contaminants measured
• Ideal Villa Manufactured Home Community (2023)
  1 contaminants measured
• Clinton Estates (2023)
  1 contaminants measured
• Parkwood (2024)
  1 contaminants measured
• Egelcraft Mobile Home Park (2023)
  1 contaminants measured
• Coventry Woods Mhc (2023)
  1 contaminants measured
• Sunset Ridge Mhc (2023)
  1 contaminants measured
• Majestic Care of Flushing (2023)
  1 contaminants measured
• Argentine Care Center (2023)
  1 contaminants measured
• Stepping Stones Children's Center (2024)
  1 contaminants measured
• Acme Township - Hope Village (2023)
  1 contaminants measured
• Ada Township (2025)
  1 contaminants measured
• Addison (2023)
  1 contaminants measured
• Adrian (2023)
  1 contaminants measured
• Ahmeek (2022)
  1 contaminants measured
• Akron Township (2023)
  1 contaminants measured
• Alabaster Township (2022)
  1 contaminants measured
• Albee Township (2023)
  1 contaminants measured
• Ford Forestry Center (2023)
  1 contaminants measured
• Albion (2025)
  1 contaminants measured
• Algonac, City of (2023)
  1 contaminants measured
• Allegan (2025)
  1 contaminants measured
• Allegan County Services Center (2024)
  1 contaminants measured
• Allendale Township (2024)
  1 contaminants measured
• Allen Park (2025)
  1 contaminants measured
• Alma, City of (2023)
  1 contaminants measured
• Almont, Village of (2023)
  1 contaminants measured
• Alpena, City of (2025)
  1 contaminants measured
• Charter Township of Alpena (2025)
  1 contaminants measured
• Alpha (2023)
  1 contaminants measured
• Hematite Township (2022)
  1 contaminants measured
• Andrews University (2024)
  1 contaminants measured
• Andelina Farms (2023)
  1 contaminants measured
• Ann Arbor Township (2023)
  1 contaminants measured
• Arbor Ridge Condominiums (2024)
  1 contaminants measured
• Armada, Village of (2024)
  1 contaminants measured
• Artesian Springs Rv Resort (2023)
  1 contaminants measured
• Ash Township (2025)
  1 contaminants measured
• Ashley, Village of (2024)
  1 contaminants measured
• Au Gres, City of (2023)
  1 contaminants measured
• Au Gres Township (2023)
  1 contaminants measured
• Au Sable Township (2022)
  1 contaminants measured
• Auburn (2023)
  1 contaminants measured
• Augusta (2024)
  1 contaminants measured
• Augusta Township (2025)
  1 contaminants measured
• Austin Commons Ii (2023)
  1 contaminants measured
• Ausable Valley Community (2025)
  1 contaminants measured
• Rochester Hills (2025)
  1 contaminants measured
• Bad Axe (2024)
  1 contaminants measured
• Bair Lake Bible Camp (2023)
  1 contaminants measured
• Baldwin, Village of (2024)
  1 contaminants measured
• Baldwin Township (2024)
  1 contaminants measured
• Bancroft, Village of (2024)
  1 contaminants measured
• Bangor (2023)
  1 contaminants measured
• Bangor Township (2025)
  1 contaminants measured
• Bangor-monitor Metro District (2023)
  1 contaminants measured
• Baraga (2023)
  1 contaminants measured
• Barn Swallow Apartments (2022)
  1 contaminants measured
• Baroda (2024)
  1 contaminants measured
• Barry Township (2023)
  1 contaminants measured
• Barton Hills (2024)
  1 contaminants measured
• Battle Creek - Verona System (2025)
  1 contaminants measured
• Bay Area Water System (2018)
  1 contaminants measured
• Bay City, City of (2025)
  1 contaminants measured
• Bay Co. Dept of Water & Sewer (2025)
  1 contaminants measured
• Bay Harbor Club (2022)
  1 contaminants measured
• Bay View Association (2022)
  1 contaminants measured
• Beach House Apartments (2024)
  1 contaminants measured
• Beacon Home at Colby (2024)
  1 contaminants measured
• Bear Creek Villa (2024)
  1 contaminants measured
• Bear Lake, Village of (2024)
  1 contaminants measured
• Beaver Creek-grayling Townships Ua (2024)
  1 contaminants measured
• Beaver Creek Resort (2023)
  1 contaminants measured
• Beaver Road Area Water Assoc. (2023)
  1 contaminants measured
• Beaver Township (2023)
  1 contaminants measured
• Beaverton (2023)
  1 contaminants measured
• Beecher Metropolitan District (2025)
  1 contaminants measured
• Iron River Township-beechwood (2024)
  1 contaminants measured
• Belding (2024)
  1 contaminants measured
• Bellaire, Village of (2024)
  1 contaminants measured
• Whispering Pines Senior Living (2024)
  1 contaminants measured
• Belleville (2025)
  1 contaminants measured
• Bellevue, Village of (2024)
  1 contaminants measured
• Benton Harbor (2025)
  1 contaminants measured
• Benzonia Village of (2024)
  1 contaminants measured
• Bergland Township (2024)
  1 contaminants measured
• Berkley (2025)
  1 contaminants measured
• Berlin Township (2025)
  1 contaminants measured
• Berrien Springs (2023)
  1 contaminants measured
• Bessemer (2024)
  1 contaminants measured
• Beulah, Village of (2023)
  1 contaminants measured
• Beverly Hills (2025)
  1 contaminants measured
• Big Rapids (2025)
  1 contaminants measured
• Bingham Farms (2023)
  1 contaminants measured
• Bingham Township (2023)
  1 contaminants measured
• Birch Run, Village of (2023)
  1 contaminants measured
• Birch Run Township (2023)
  1 contaminants measured
• Birchwood Farms (2024)
  1 contaminants measured
• Birmingham (2025)
  1 contaminants measured
• Black Bear Farms (2023)
  1 contaminants measured
• Blackman Township (2025)
  1 contaminants measured
• Blair Township (2024)
  1 contaminants measured
• Blissfield (2023)
  1 contaminants measured
• Bloomfield Hills (2025)
  1 contaminants measured
• Bloomfield Township (2025)
  1 contaminants measured
• Blue Spruce Apartments (2024)
  1 contaminants measured
• General White Apartments (2023)
  1 contaminants measured
• Blumfield-reese Water Auth. (2023)
  1 contaminants measured
• Boynaire Landowners Association (2024)
  1 contaminants measured
• Boyne City, City of (2024)
  1 contaminants measured
• Highlands at Harbor Springs (2024)
  1 contaminants measured
• Breckenridge, Village of (2024)
  1 contaminants measured
• Ridge Valley of Milford (2022)
  1 contaminants measured
• Bridgeport Township (2024)
  1 contaminants measured
• Bridgman (2024)
  1 contaminants measured
• Brighton, City of (2025)
  1 contaminants measured
• Briley Township (2025)
  1 contaminants measured
• Britton (2024)
  1 contaminants measured
• Brook of Houghton Lake (2023)
  1 contaminants measured
• Bronson (2024)
  1 contaminants measured
• Brooklyn (2024)
  1 contaminants measured
• Brown City (2024)
  1 contaminants measured
• Brownstown Township (2025)
  1 contaminants measured
• Bruce Township (2023)
  1 contaminants measured
• Buchanan (2023)
  1 contaminants measured
• Buckley, Village of (2024)
  1 contaminants measured
• Buena Vista Township (2025)
  1 contaminants measured
• Burr Oak (2023)
  1 contaminants measured
• Oak Pointe (2023)
  1 contaminants measured
• Burtchville Township (2023)
  1 contaminants measured
• Burton, City of (2023)
  1 contaminants measured
• Buttercup Shores (2024)
  1 contaminants measured
• Byron, Village of (2024)
  1 contaminants measured
• Byron-gaines Utility Authority (2025)
  1 contaminants measured
• Cadillac, City of (2025)
  1 contaminants measured
• Caledonia Estates (2023)
  1 contaminants measured
• Caledonia Township (2025)
  1 contaminants measured
• Calumet (2022)
  1 contaminants measured
• Calumet Township (2022)
  1 contaminants measured
• Camden (2024)
  1 contaminants measured
• Camp Arcadia / Lca (2024)
  1 contaminants measured
• Crossroads for Youth (2013)
  1 contaminants measured
• Canton Township (2025)
  1 contaminants measured
• Carney-nadeau Water & Sewer Authority (2024)
  1 contaminants measured
• Caro, City of (2023)
  1 contaminants measured
• Carrollton Township (2024)
  1 contaminants measured
• Carson City (2025)
  1 contaminants measured
• Carsonville, Village of (2024)
  1 contaminants measured
• Caseville Township (2023)
  1 contaminants measured
• Caspian (2024)
  1 contaminants measured
• Cass City, Village of (2023)
  1 contaminants measured
• Cedar Hill Assisted Living (2023)
  1 contaminants measured
• Cedar Creek Township (2024)
  1 contaminants measured
• Cedar Springs (2025)
  1 contaminants measured
• Center Line, City of (2025)
  1 contaminants measured
• Central Lake, Village of (2023)
  1 contaminants measured
• Centreville (2024)
  1 contaminants measured
• Chalet Du Paw Paw Condominiums (2024)
  1 contaminants measured
• Charleston Township (2023)
  1 contaminants measured
• Charlevoix Township (2024)
  1 contaminants measured
• Charlotte, City of (2024)
  1 contaminants measured
• Chassell Township (2023)
  1 contaminants measured
• Cheboygan, City of (2025)
  1 contaminants measured
• Chelsea (2023)
  1 contaminants measured
• Chesaning, Village of (2023)
  1 contaminants measured
• Chesterfield Township (2025)
  1 contaminants measured
• Chikaming Township (2024)
  1 contaminants measured
• Clare, City of (2023)
  1 contaminants measured
• Clawson (2025)
  1 contaminants measured
• Clay Township (2023)
  1 contaminants measured
• Clifford, Village of (2024)
  1 contaminants measured
• Climax (2024)
  1 contaminants measured
• Clinton (2023)
  1 contaminants measured
• Clinton Township (2025)
  1 contaminants measured
• Clio, City of (2024)
  1 contaminants measured
• Clyde Township (2022)
  1 contaminants measured
• Coldwater (2025)
  1 contaminants measured
• Coleman, City of (2024)
  1 contaminants measured
• Coloma (2024)
  1 contaminants measured
• Colon (2024)
  1 contaminants measured
• Green Oak Twp - Centennial Farms (2024)
  1 contaminants measured
• Colony Bay Condominiums (2023)
  1 contaminants measured
• Columbia Lakes Estates (2023)
  1 contaminants measured
• Columbiaville, Village of (2024)
  1 contaminants measured
• Colombiere Center (2022)
  1 contaminants measured
• Commerce Township (2025)
  1 contaminants measured
• Concord (2023)
  1 contaminants measured
• Constantine (2024)
  1 contaminants measured
• Coopersville (2024)
  1 contaminants measured
• Copper City (2024)
  1 contaminants measured
• Grant Township - Copper Harbor (2023)
  1 contaminants measured
• Copper Meadows (2022)
  1 contaminants measured
• Corunna, City of (2024)
  1 contaminants measured
• Cottage Cove on Elk Lake (2024)
  1 contaminants measured
• Country Living Adult Foster Care (2022)
  1 contaminants measured
• Cottrellville Township (2025)
  1 contaminants measured
• Country Village Apartments (2024)
  1 contaminants measured
• Country Log Apts (2023)
  1 contaminants measured
• Country View Manor Condos (2023)
  1 contaminants measured
• Willows on Twin Ponds (2023)
  1 contaminants measured
• Covert Township (2022)
  1 contaminants measured
• Landings at Cranes Cove (2022)
  1 contaminants measured
• Crockery Township (2022)
  1 contaminants measured
• Lakeside Apartments (2023)
  1 contaminants measured
• Croswell, City of (2023)
  1 contaminants measured
• Mack. Co. Housing-curtis (2024)
  1 contaminants measured
• Crystal Falls (2023)
  1 contaminants measured
• Crystal Highlands Subdivision (2024)
  1 contaminants measured
• Crystal Mountain Resort & Spa (2024)
  1 contaminants measured
• Dansville, Village of (2024)
  1 contaminants measured
• Davison, City of (2025)
  1 contaminants measured
• Dearborn (2025)
  1 contaminants measured
• Decatur (2024)
  1 contaminants measured
• Deckerville, Village of (2024)
  1 contaminants measured
• Deerwood Subdivision (2024)
  1 contaminants measured
• Charter Township of Delta (2025)
  1 contaminants measured
• Detour (2023)
  1 contaminants measured
• Detroit City of (2025)
  1 contaminants measured
• Dexter (2025)
  1 contaminants measured
• Ely Township-diorite (2023)
  1 contaminants measured
• Osceola Township (2023)
  1 contaminants measured
• Dorr-leighton (2023)
  1 contaminants measured
• Drummond Island Apartments (2023)
  1 contaminants measured
• Dryden, Village of (2024)
  1 contaminants measured
• Dundee (2025)
  1 contaminants measured
• Durand, City of (2025)
  1 contaminants measured
• Dunrentin Heights Subdivision (2023)
  1 contaminants measured
• Duvernay Park Apartments (2022)
  1 contaminants measured
• East Bay Charter Township (2025)
  1 contaminants measured
• Eastpointe, City of (2025)
  1 contaminants measured
• East Grand Rapids (2025)
  1 contaminants measured
• East Jordan, City of (2024)
  1 contaminants measured
• Breitung Twp.-east Kingsford (2023)
  1 contaminants measured
• East Lansing, City of (2025)
  1 contaminants measured
• East Lansing Meridian Water Authority (2018)
  1 contaminants measured
• East Tawas, City of (2023)
  1 contaminants measured
• Eaton Rapids, City of (2025)
  1 contaminants measured
• Eaton Green Estates Subdivision (2024)
  1 contaminants measured
• Ecorse (2025)
  1 contaminants measured
• Edge 72 (2023)
  1 contaminants measured
• Edmore (2023)
  1 contaminants measured
• Edwardsburg (2021)
  1 contaminants measured
• Elk Rapids, Village of (2024)
  1 contaminants measured
• Elkton, Village of (2023)
  1 contaminants measured
• Ellsworth, Village of (2024)
  1 contaminants measured
• Elmwood Township (2024)
  1 contaminants measured
• Elsie, Village of (2023)
  1 contaminants measured
• Emery Pines (2023)
  1 contaminants measured
• Emmett Township (2023)
  1 contaminants measured
• Empire, Village of (2024)
  1 contaminants measured
• Escanaba (2025)
  1 contaminants measured
• Essexville, City of (2025)
  1 contaminants measured
• Evart, City of (2023)
  1 contaminants measured
• Lantern Bay Treatment Center (2024)
  1 contaminants measured
• Fairfield Township (2023)
  1 contaminants measured
• Farmington, City of (2025)
  1 contaminants measured
• Farmington Hills, City of (2025)
  1 contaminants measured
• Farwell, Village of (2024)
  1 contaminants measured
• Fenton, City of (2025)
  1 contaminants measured
• Fenton Harbor Condominiums (2023)
  1 contaminants measured
• Creekside at Fenton Heights (2024)
  1 contaminants measured
• Ferndale (2025)
  1 contaminants measured
• Ferrysburg (2022)
  1 contaminants measured
• Fife Lake Townhouses (2024)
  1 contaminants measured
• Filer Charter Township (2024)
  1 contaminants measured
• Fillmore Township (2024)
  1 contaminants measured
• Flat Rock (2025)
  1 contaminants measured
• Flint, City of (2025)
  1 contaminants measured
• Flushing, City of (2025)
  1 contaminants measured
• Fonda Lake Water Authority (2023)
  1 contaminants measured
• Ford River Township (2024)
  1 contaminants measured
• Forester Township (2022)
  1 contaminants measured
• Forestville Village of (2023)
  1 contaminants measured
• Forsyth Township (2023)
  1 contaminants measured
• Fort Gratiot Township (2023)
  1 contaminants measured
• Fowler, Village of (2024)
  1 contaminants measured
• Fowlerville, Village of (2023)
  1 contaminants measured
• Foxfield Apartments (2023)
  1 contaminants measured
• Frankenlust Township (2024)
  1 contaminants measured
• Frankenmuth, City of (2024)
  1 contaminants measured
• Frankenmuth Township (2023)
  1 contaminants measured
• Briarcliff Homeowners Assn (2024)
  1 contaminants measured
• Fraser, City of (2025)
  1 contaminants measured
• Fraser Township (2023)
  1 contaminants measured
• Tittabawassee Township (2024)
  1 contaminants measured
• Freeport (2022)
  1 contaminants measured
• Fremont (2023)
  1 contaminants measured
• Frenchtown Township (2023)
  1 contaminants measured
• Fruitport Township (2025)
  1 contaminants measured
• Gaastra (2023)
  1 contaminants measured
• Gagetown, Village of (2024)
  1 contaminants measured
• Galesburg (2024)
  1 contaminants measured
• Garden (2024)
  1 contaminants measured
• Garfield Charter Township (2025)
  1 contaminants measured
• Sherman Township (2023)
  1 contaminants measured
• Gaylord, City of (2024)
  1 contaminants measured
• Genesee County Water System (2024)
  1 contaminants measured
• Genesee Township (2024)
  1 contaminants measured
• Georgetown Township (2025)
  1 contaminants measured
• Germfask Township (2023)
  1 contaminants measured
• Gibraltar (2025)
  1 contaminants measured
• Gladstone (2025)
  1 contaminants measured
• Gladwin, City of (2023)
  1 contaminants measured
• Glenn Haven Shores (2024)
  1 contaminants measured
• Glen Oaks Community College (2024)
  1 contaminants measured
• Glennwoods Subdivision (2024)
  1 contaminants measured
• Gobles (2024)
  1 contaminants measured
• Gogebic Range Water Auth (2022)
  1 contaminants measured
• Grand Beach (2023)
  1 contaminants measured
• Grand Blanc, City of (2025)
  1 contaminants measured
• Charter Township of Grand Blanc (2025)
  1 contaminants measured
• Grand Haven (2025)
  1 contaminants measured
• Grand Haven Township (2025)
  1 contaminants measured
• Grand Ledge, City of (2023)
  1 contaminants measured
• Grand Valley Estates (2022)
  1 contaminants measured
• Grandville (2025)
  1 contaminants measured
• Greenfield Estates (2024)
  1 contaminants measured
• Great Lakes Adventist Academy (2024)
  1 contaminants measured
• Grayling, City of (2024)
  1 contaminants measured
• Greenfield Pointe Subdivision (2023)
  1 contaminants measured
• Greenville (2023)
  1 contaminants measured
• Ely Township-greenwood (2023)
  1 contaminants measured
• Grosse Pointe, City of (2025)
  1 contaminants measured
• Grosse Pointe Farms (2025)
  1 contaminants measured
• Grosse Pointe Park (2025)
  1 contaminants measured
• Grosse Pointe Shores (2023)
  1 contaminants measured
• Lake Doster (2024)
  1 contaminants measured
• Gun Plain Township (2022)
  1 contaminants measured
• Hampton Township (2025)
  1 contaminants measured
• Hancock (2025)
  1 contaminants measured
• Handy Township - Red Cedars Crossing (2023)
  1 contaminants measured
• Harbor Beach, City of (2023)
  1 contaminants measured
• Harbor Cove Apartments (2023)
  1 contaminants measured
• Harbor Hills Subdivision Association (2024)
  1 contaminants measured
• Harbor Springs, City of (2024)
  1 contaminants measured
• Harbor Springs Area Authority (2024)
  1 contaminants measured
• Haring Charter Township (2024)
  1 contaminants measured
• Harrison, City of (2024)
  1 contaminants measured
• Harrison Township (2025)
  1 contaminants measured
• Harrisville, City of (2024)
  1 contaminants measured
• Hart (2024)
  1 contaminants measured
• Hartford (2023)
  1 contaminants measured
• Hartland Hills Condominiums (2022)
  1 contaminants measured
• Hartland Township (2022)
  1 contaminants measured
• Harvest Hills Subdivision Asso (2023)
  1 contaminants measured
• Hastings (2025)
  1 contaminants measured
• Hazel Park (2025)
  1 contaminants measured
• Hemlock/richland Township (2023)
  1 contaminants measured
• Heritage Apartments (2023)
  1 contaminants measured
• Heritage Drive Apartments (2023)
  1 contaminants measured
• Hesperia (2023)
  1 contaminants measured
• Hidden Glen Apartments (2023)
  1 contaminants measured
• Highfields Youth Camp (2023)
  1 contaminants measured
• Hidden Lakes of Green Oaks (2023)
  1 contaminants measured
• Highland Park (2025)
  1 contaminants measured
• Hillman, Village of (2023)
  1 contaminants measured
• Hillsdale (2025)
  1 contaminants measured
• Hillview Estates Subdivision (2024)
  1 contaminants measured
• Holland Board of Public Works (2025)
  1 contaminants measured
• Holland Township Consolidated (2025)
  1 contaminants measured
• Holton Cottages (2022)
  1 contaminants measured
• Homer Township (2023)
  1 contaminants measured
• Hope Network - West Lake- Facility (2024)
  1 contaminants measured
• Horton Bay Club (2023)
  1 contaminants measured
• Houghton (2025)
  1 contaminants measured
• Houghton Co Memorial Airport (2022)
  1 contaminants measured
• Howard City (2024)
  1 contaminants measured
• Howell, City of (2025)
  1 contaminants measured
• Torch Lake Township (2022)
  1 contaminants measured
• Hudson (2023)
  1 contaminants measured
• Hudsonville (2025)
  1 contaminants measured
• Huntington Woods (2025)
  1 contaminants measured
• Highland Township (2024)
  1 contaminants measured
• Huron Dunes Subdivision (2023)
  1 contaminants measured
• Huron Twp (2025)
  1 contaminants measured
• Huron Township (huron County) (2022)
  1 contaminants measured
• Portage Township (2023)
  1 contaminants measured
• Imlay City, City of (2025)
  1 contaminants measured
• Independence Township (2024)
  1 contaminants measured
• Stambaugh Township-indian Lake (2024)
  1 contaminants measured
• Inland House Condominium Association (2024)
  1 contaminants measured
• Interlochen Center for the Arts (2024)
  1 contaminants measured
• Ionia (2023)
  1 contaminants measured
• Ira Township (2023)
  1 contaminants measured
• Iron Mountain (2025)
  1 contaminants measured
• Iron River (2023)
  1 contaminants measured
• Ironwood (2025)
  1 contaminants measured
• Ironwood Township (2023)
  1 contaminants measured
• Ishpeming (2025)
  1 contaminants measured
• Ishpeming Twp - West (2023)
  1 contaminants measured
• Ithaca, City of (2023)
  1 contaminants measured
• Jackson (2025)
  1 contaminants measured
• Jamestown Township (2025)
  1 contaminants measured
• James Township (2023)
  1 contaminants measured
• Jonesville (2024)
  1 contaminants measured
• Kalamazoo (2025)
  1 contaminants measured
• Kalamazoo Lake Sewer & Water Authority (2025)
  1 contaminants measured
• Kalchik Estates (2022)
  1 contaminants measured
• Kaleva, Village of (2021)
  1 contaminants measured
• Kawkawlin Township (2023)
  1 contaminants measured
• Kawkawlin Metro Dist Water Sup (2023)
  1 contaminants measured
• Keego Harbor, City of (2023)
  1 contaminants measured
• Kentwood (2025)
  1 contaminants measured
• Kimball Township (2024)
  1 contaminants measured
• Kinross Township (2025)
  1 contaminants measured
• Kingsford (2025)
  1 contaminants measured
• Kingston, Village of (2024)
  1 contaminants measured
• Knorrwood Knolls Subdivision (2023)
  1 contaminants measured
• Kochville Township (2024)
  1 contaminants measured
• L'anse (2023)
  1 contaminants measured
• Laguna Vista Subdivision (2024)
  1 contaminants measured
• Lake Angela Condo Apts #3 (2023)
  1 contaminants measured
• Lake Arrowhead Estates (2024)
  1 contaminants measured
• Lake Angela Condo Apts #5 (2022)
  1 contaminants measured
• Lake Angela Condo Apts #4 (2024)
  1 contaminants measured
• Lake Bella Vista (2024)
  1 contaminants measured
• Lake Angela Condo Apts #6 (2023)
  1 contaminants measured
• Lake City, City of (2023)
  1 contaminants measured
• Lake Linden (2023)
  1 contaminants measured
• Southwest Michigan Regional Sanitary Sew (2025)
  1 contaminants measured
• Lake Odessa (2024)
  1 contaminants measured
• Lake Pointe Condominiums (2024)
  1 contaminants measured
• Lake Orion, Village of (2023)
  1 contaminants measured
• Lake Charter Township (2024)
  1 contaminants measured
• Laketown Township (2023)
  1 contaminants measured
• Springs/portsmouth Apartments (2024)
  1 contaminants measured
• Lakeview (2024)
  1 contaminants measured
• Lakeside Development (2024)
  1 contaminants measured
• Lakeview Apartments (2024)
  1 contaminants measured
• Lakewood Beach Community Services Co. (2023)
  1 contaminants measured
• Lansing Board of Water & Light (2023)
  1 contaminants measured
• Lansing Township (2023)
  1 contaminants measured
• Lapeer, City of (2025)
  1 contaminants measured
• Larkin Township (2023)
  1 contaminants measured
• Lathrup Village (2025)
  1 contaminants measured
• Laurium (2022)
  1 contaminants measured
• Lawrence (2023)
  1 contaminants measured
• Leelanau Co Law Enforcement Center (2023)
  1 contaminants measured
• Lawton (2024)
  1 contaminants measured
• Lenox Township (2023)
  1 contaminants measured
• Leslie, City of (2023)
  1 contaminants measured
• Lexington, Village of (2023)
  1 contaminants measured
• Worth Township (2025)
  1 contaminants measured
• Lincoln Manor (2024)
  1 contaminants measured
• Lincoln Park (2025)
  1 contaminants measured
• Crystal Falls Township - Lind (2023)
  1 contaminants measured
• Linden, City of (2025)
  1 contaminants measured
• Linwood Metropolitan District (2023)
  1 contaminants measured
• Litchfield (2024)
  1 contaminants measured
• Little Traverse Township (2024)
  1 contaminants measured
• Livingston Community Water Authority (2023)
  1 contaminants measured
• Livonia (2025)
  1 contaminants measured
• Loch Alpine Sanitary Authority (2025)
  1 contaminants measured
• Lockport Township (2024)
  1 contaminants measured
• Looking Glass Terraces Apts. (2024)
  1 contaminants measured
• Long Lake Village Subdivision (2024)
  1 contaminants measured
• Lowell (2025)
  1 contaminants measured
• Lowell Township (2022)
  1 contaminants measured
• Ludington (2023)
  1 contaminants measured
• Lyons (2024)
  1 contaminants measured
• Lyon Township (2025)
  1 contaminants measured
• Mackinac Island (2024)
  1 contaminants measured
• Mackinaw City, Village of (2024)
  1 contaminants measured
• Macomb Township (2025)
  1 contaminants measured
• Madison Township (2023)
  1 contaminants measured
• Mancelona Area Water and Sewer Authority (2025)
  1 contaminants measured
• Manchester (2023)
  1 contaminants measured
• Manistee, City of (2025)
  1 contaminants measured
• Manistique (2023)
  1 contaminants measured
• Manitou Lake Apartments (2023)
  1 contaminants measured
• Maple Grove Apartments (2024)
  1 contaminants measured
• Maple Rapids, Village of (2024)
  1 contaminants measured
• Maple Ridge Township (2024)
  1 contaminants measured
• Marcellus (2023)
  1 contaminants measured
• Marenisco Township (2024)
  1 contaminants measured
• Marine City (2023)
  1 contaminants measured
• Mhog Sewer & Water Authority (2024)
  1 contaminants measured
• Marlette, City of (2024)
  1 contaminants measured
• Marquette Township (2024)
  1 contaminants measured
• Marshall (2025)
  1 contaminants measured
• Mathias Township (2023)
  1 contaminants measured
• Martin (2024)
  1 contaminants measured
• Marysville, City of (2023)
  1 contaminants measured
• Mason, City of (2025)
  1 contaminants measured
• Rapid River Housing Commission (2022)
  1 contaminants measured
• Mayville, Village of (2024)
  1 contaminants measured
• Mcbain, City of (2023)
  1 contaminants measured
• Melvindale (2025)
  1 contaminants measured
• Mendon (2023)
  1 contaminants measured
• Menominee (2025)
  1 contaminants measured
• Meridian Township (2025)
  1 contaminants measured
• Merrill, Village of (2023)
  1 contaminants measured
• Merritt Township (2023)
  1 contaminants measured
• Mesick, Village of (2023)
  1 contaminants measured
• Metamora, Village of (2024)
  1 contaminants measured
• Michiana (2023)
  1 contaminants measured
• Michigan State University (2025)
  1 contaminants measured
• Middleville (2023)
  1 contaminants measured
• Midland, City of (2024)
  1 contaminants measured
• Midland Co., Water Dist. No. 1 of (2025)
  1 contaminants measured
• Midland Charter Township (2023)
  1 contaminants measured
• Milan (2024)
  1 contaminants measured
• Milford, Village of (2023)
  1 contaminants measured
• Millersburg, Village of (2024)
  1 contaminants measured
• Millington, Village of (2023)
  1 contaminants measured
• Mills Township (2023)
  1 contaminants measured
• Minden City, Village of (2024)
  1 contaminants measured
• Maplewood and Stone Manors (2024)
  1 contaminants measured
• Monitor Township (2024)
  1 contaminants measured
• Monroe (2025)
  1 contaminants measured
• Monroe South County (2025)
  1 contaminants measured
• Montague (2024)
  1 contaminants measured
• Montrose, City of (2024)
  1 contaminants measured
• Morenci (2023)
  1 contaminants measured
• Mount Clemens, City of (2025)
  1 contaminants measured
• Mount Morris, City of (2023)
  1 contaminants measured
• Mount Pleasant (2024)
  1 contaminants measured
• Muir (2024)
  1 contaminants measured
• Munising (2024)
  1 contaminants measured
• Munising Industrial Park (2024)
  1 contaminants measured
• Muskegon (2023)
  1 contaminants measured
• Musk Co Northside Water System (2023)
  1 contaminants measured
• Muskegon Heights (2023)
  1 contaminants measured
• Muskegon Co Eastside Water System (2023)
  1 contaminants measured
• Mystic Ridge L.l.c. (2023)
  1 contaminants measured
• Mystic View Apartments (2024)
  1 contaminants measured
• Iron River Township-nash (2024)
  1 contaminants measured
• Nashville (2023)
  1 contaminants measured
• Tilden Township (2024)
  1 contaminants measured
• Negaunee (2025)
  1 contaminants measured
• Negaunee/ishpeming Water Authority (2011)
  1 contaminants measured
• Negaunee Township (2023)
  1 contaminants measured
• New Baltimore, City of (2025)
  1 contaminants measured
• New Buffalo (2024)
  1 contaminants measured
• New Buffalo Township (2022)
  1 contaminants measured
• New Haven, Village of (2025)
  1 contaminants measured
• New Lothrop, Village of (2024)
  1 contaminants measured
• Newaygo (2024)
  1 contaminants measured
• Newberry Correctional Facility (2023)
  1 contaminants measured
• Niles (2025)
  1 contaminants measured
• Niles Township (2024)
  1 contaminants measured
• Pennfield Township (2025)
  1 contaminants measured
• North Branch, Village of (2024)
  1 contaminants measured
• Ishpeming Twp - East (2023)
  1 contaminants measured
• Arbor View (2022)
  1 contaminants measured
• North Muskegon (2023)
  1 contaminants measured
• Upper Michigan Water Company (2025)
  1 contaminants measured
• Northport, Village of (2024)
  1 contaminants measured
• Northport Cottage Owners (2024)
  1 contaminants measured
• Northville (2025)
  1 contaminants measured
• Northville Township (2025)
  1 contaminants measured
• Norton Shores (2023)
  1 contaminants measured
• Norway (2025)
  1 contaminants measured
• Novi, City of (2025)
  1 contaminants measured
• Streams of Light International (2024)
  1 contaminants measured
• Oak Leaf Manor (2024)
  1 contaminants measured
• Oak Lane Apartments (2024)
  1 contaminants measured
• Southeast Oakland Township (2023)
  1 contaminants measured
• Southwest Oakland Township (2025)
  1 contaminants measured
• Oak Park (2025)
  1 contaminants measured
• South Shore Water System (2024)
  1 contaminants measured
• Ogemaw Township (2022)
  1 contaminants measured
• Old Farm Colony Water Association (2024)
  1 contaminants measured
• Olive/blendon Twps (2022)
  1 contaminants measured
• Olivet, City of (2024)
  1 contaminants measured
• Omer, City of (2023)
  1 contaminants measured
• Onsted (2024)
  1 contaminants measured
• Ontonagon (2023)
  1 contaminants measured
• Orchard Lake Village (2023)
  1 contaminants measured
• Huntmore Estates (2022)
  1 contaminants measured
• Oronoko Township (2022)
  1 contaminants measured
• Orion Township (2025)
  1 contaminants measured
• Osborn Lake Estates (2023)
  1 contaminants measured
• Orchard Place Manor Apartments (2023)
  1 contaminants measured
• Oscoda Township (2025)
  1 contaminants measured
• Otsego (2024)
  1 contaminants measured
• Ovid, City of (2023)
  1 contaminants measured
• Owendale, Village of (2023)
  1 contaminants measured
• Owosso, City of (2025)
  1 contaminants measured
• Oxford, Village of (2023)
  1 contaminants measured
• Oxford Township (2024)
  1 contaminants measured
• Man Nor Farms Subdivision (2024)
  1 contaminants measured
• Parma, Village of (2024)
  1 contaminants measured
• Parma Township-amberton Vill. (2024)
  1 contaminants measured
• Paw Paw Apts - West Maple Lake (2023)
  1 contaminants measured
• Paw Paw (2025)
  1 contaminants measured
• The Peninsula Development Llc (2023)
  1 contaminants measured
• Pennfield Twp-convis/verona (2023)
  1 contaminants measured
• Peninsula Township (2022)
  1 contaminants measured
• Cass County Water System (2024)
  1 contaminants measured
• Penny Lake Estates Subdivision (2024)
  1 contaminants measured
• Pentland Township (2023)
  1 contaminants measured
• Pentwater (2024)
  1 contaminants measured
• Pere Marquette Twp - Customer (2023)
  1 contaminants measured
• Pere Marquette Twp - Wells (2024)
  1 contaminants measured
• Perrinton, Village of (2024)
  1 contaminants measured
• Perry, City of (2024)
  1 contaminants measured
• Petersburg (2023)
  1 contaminants measured
• Petoskey, City of (2024)
  1 contaminants measured
• Pewamo (2023)
  1 contaminants measured
• Pigeon, Village of (2024)
  1 contaminants measured
• Pinckney, Village of (2023)
  1 contaminants measured
• Pinconning, City of (2023)
  1 contaminants measured
• Pinconning Township (2023)
  1 contaminants measured
• Cottage Hs, Llc (pineview Cottage) (2023)
  1 contaminants measured
• Pineview Homes (2024)
  1 contaminants measured
• Pirates Cove Condominiums (2024)
  1 contaminants measured
• Pittsfield Township (2025)
  1 contaminants measured
• Plainfield Township (2025)
  1 contaminants measured
• Plainwell (2023)
  1 contaminants measured
• Pleasant Ridge (2023)
  1 contaminants measured
• Green Brook Estates (2023)
  1 contaminants measured
• Plymouth (2025)
  1 contaminants measured
• Plymouth Township (2025)
  1 contaminants measured
• Polkton Township (2023)
  1 contaminants measured
• Pointe Aux Barques Township (2023)
  1 contaminants measured
• Pontiac (2025)
  1 contaminants measured
• Lakeview Chalet Condominiums (2024)
  1 contaminants measured
• Auburn Hills (2025)
  1 contaminants measured
• Port Austin Area Sewer & Water (2023)
  1 contaminants measured
• Port Hope-gore-rubicon U. A. (2023)
  1 contaminants measured
• Port Huron, City of (2023)
  1 contaminants measured
• Port Huron Township (2024)
  1 contaminants measured
• Port Sanilac, Village of (2024)
  1 contaminants measured
• Portage (2023)
  1 contaminants measured
• Portage Point Inn (2023)
  1 contaminants measured
• Portland (2024)
  1 contaminants measured
• Portsmouth Township (2023)
  1 contaminants measured
• Posen, Village of (2022)
  1 contaminants measured
• Potterville, City of (2024)
  1 contaminants measured
• Powers-spalding Water Authority (2024)
  1 contaminants measured
• Prairie Village Apartments (2023)
  1 contaminants measured
• Prescott-hidden Creek Manor (2024)
  1 contaminants measured
• Oakland Hunt Subdivision (2022)
  1 contaminants measured
• Presque Isle Harbor Water Co. (2024)
  1 contaminants measured
• Lakeshore Village Subdivision (2023)
  1 contaminants measured
• Quincy (2024)
  1 contaminants measured
• Franklin-quincy Water Authority (2022)
  1 contaminants measured
• Quinnesec (2023)
  1 contaminants measured
• Bessemer Township (2022)
  1 contaminants measured
• West Park Apartments (2023)
  1 contaminants measured
• Rapid River Meadows (2024)
  1 contaminants measured
• Ravenna (2023)
  1 contaminants measured
• Reading (2024)
  1 contaminants measured
• Redford Township (2025)
  1 contaminants measured
• Reed City, City of (2024)
  1 contaminants measured
• Republic Township (2023)
  1 contaminants measured
• Richmond, City of (2023)
  1 contaminants measured
• Ridgeway (2023)
  1 contaminants measured
• Riga Township (2023)
  1 contaminants measured
• Franklin Township (2024)
  1 contaminants measured
• Riverbrooke Homeowners Association (2023)
  1 contaminants measured