PFAS in Indiana tap water

19 of 230 tested systems measured above the federal limit. 55 had a detection of any kind.

Every public water system below was required by the EPA to test for 29 PFAS compounds. Sorted by the highest PFOA or PFOS reading, worst first. Find yours for the full set of readings and what removes them.

Water system	Highest PFOA	Highest PFOS	Found	Against the 4 ppt limit
Marysville Otisco Nabb Water Corp.	14.5 ppt	none detected	1 of 29	Above
Indiana American Water - Charlestown	13.4 ppt	none detected	1 of 29	Above
Brown County Water Utility	12.9 ppt	10.5 ppt	5 of 29	Above
South Bend Water Works	10 ppt	none detected	8 of 29	Above
Pike-gibson Water, Inc.	7.9 ppt	none detected	5 of 29	Above
Greenville Water Utility	7.2 ppt	none detected	2 of 29	Above
West Terre Haute Water	none detected	7.1 ppt	3 of 29	Above
Palmyra Water Works	6.5 ppt	none detected	1 of 29	Above
Hanover Water Department	6.3 ppt	4.1 ppt	3 of 29	Above
Jackson County Water Utility	6 ppt	5.1 ppt	2 of 29	Above
Elkhart Public Works and Utilities	5.2 ppt	none detected	6 of 29	Above
Indiana American Water - Terre Haute	none detected	5.2 ppt	3 of 29	Above
Ramsey Water Company, Inc.	5.2 ppt	none detected	1 of 29	Above
Gibson Water, Inc.	4.9 ppt	none detected	2 of 29	Above
Madison Water Department, in	4.6 ppt	none detected	2 of 29	Above
Tell City Water Department	4.3 ppt	none detected	1 of 29	Above
Mishawaka Utilities	none detected	4.2 ppt	5 of 29	Above
Anderson Water Department	none detected	4.1 ppt	1 of 29	Above
University of Notre Dame	4.1 ppt	none detected	2 of 29	Above
Mount Vernon Water Works	4 ppt	none detected	4 of 29	Within
Sellersburg Water Department	4 ppt	none detected	1 of 29	Within
Aberdeen Pate Water Company, Inc.	none detected	none detected	0 of 29	Within
Alexandria Water Department	none detected	none detected	0 of 29	Within
Angola Water Department	none detected	none detected	1 of 29	Within
Apple Valley Utilities, Inc.	none detected	none detected	0 of 29	Within
Auburn Water Department	none detected	none detected	0 of 29	Within
Aurora Utilities	none detected	none detected	0 of 29	Within
B&b Water Project, Inc.	none detected	none detected	0 of 29	Within
Bargersville Water Department	none detected	none detected	3 of 29	Within
Batesville Water Utility	none detected	none detected	1 of 29	Within
Bbp Water Company	none detected	none detected	0 of 29	Within
Bedford City Utilities	none detected	none detected	0 of 29	Within
Berne Water Department	none detected	none detected	0 of 29	Within
Bicknell Municipal Utilities	none detected	none detected	0 of 29	Within
Bluffton Utilities Water Dept	none detected	none detected	0 of 29	Within
Borden Tri-county Region	none detected	none detected	0 of 29	Within
Brazil City Water Works	none detected	none detected	0 of 29	Within
Bremen Water Department	none detected	none detected	0 of 29	Within
Brownsburg Water Works	none detected	none detected	1 of 29	Within
Camp Atterbury	none detected	none detected	0 of 29	Within
Canaan Utilities	none detected	none detected	1 of 29	Within
Carmel Water Department	none detected	none detected	0 of 29	Within
Cedar Lake Water Works	none detected	none detected	0 of 29	Within
Chandler Water Works Department	none detected	none detected	0 of 29	Within
Charlestown/river Ridge	none detected	none detected	0 of 29	Within
Cicero Water Department	none detected	none detected	0 of 29	Within
Citizens Water - Indianapolis	none detected	none detected	4 of 29	Within
Citizens Water - Morgan	none detected	none detected	0 of 29	Within
Citizens Water of Westfield, Llc	none detected	none detected	0 of 29	Within
City of Bloomington Utilities	none detected	none detected	0 of 29	Within
City of Greendale Utilities	none detected	none detected	0 of 29	Within
City of Lawrence Utilities	none detected	none detected	0 of 29	Within
Clinton Water Utility	none detected	none detected	2 of 29	Within
Columbia City Water Department	none detected	none detected	0 of 29	Within
Columbus Municipal Utility	none detected	none detected	4 of 29	Within
Connersville Utilities	none detected	none detected	0 of 29	Within
Cordry Sweetwater Conservancy District	none detected	none detected	0 of 29	Within
Corydon Water Works	none detected	none detected	0 of 29	Within
Crown Point Water Works	none detected	none detected	0 of 29	Within
CUII - Indiana Water Service	none detected	none detected	0 of 29	Within
Danville Water Works	none detected	none detected	2 of 29	Within
Daviess County Rural Water	none detected	none detected	0 of 29	Within
Decatur Water Department	none detected	none detected	0 of 29	Within
Dubois Water Utilities	none detected	none detected	0 of 29	Within
Dupont Water Company	none detected	none detected	1 of 29	Within
Dyer Water Department	none detected	none detected	0 of 29	Within
East Chicago Water Works	none detected	none detected	0 of 29	Within
East Fork Water	none detected	none detected	0 of 29	Within
East Lawrence Water Authority	none detected	none detected	0 of 29	Within
East Monroe Water Corporation	none detected	none detected	0 of 29	Within
East Tippecanoe Middle School	none detected	none detected	0 of 29	Within
East Washington Rural Water	none detected	none detected	0 of 29	Within
Eastern Bartholomew Water	none detected	none detected	0 of 29	Within
Eastern Heights Utilities	none detected	none detected	0 of 29	Within
Edinburgh Water Utility	none detected	none detected	0 of 29	Within
Edwardsville Water Corporation	none detected	none detected	0 of 29	Within
Ellettsville Water Works	none detected	none detected	0 of 29	Within
Elwood Water & Sewage	none detected	none detected	0 of 29	Within
Evansville Water Utility	none detected	none detected	0 of 29	Within
Fairview Park Water Utilities	none detected	none detected	0 of 29	Within
Fayette Township Water Assn.	none detected	none detected	0 of 29	Within
Finch Newton Water, Inc.	none detected	none detected	0 of 29	Within
Floyds Knobs Water Company, Inc.	none detected	none detected	0 of 29	Within
Fort Branch Water Department	none detected	none detected	0 of 29	Within
Fort Wayne - 3 Rivers Filtration Plant	none detected	none detected	2 of 29	Within
Fortville Water Works	none detected	none detected	0 of 29	Within
Frankfort Water Works	none detected	none detected	0 of 29	Within
Franklin County Water Association	none detected	none detected	0 of 29	Within
Galveston Water Works	none detected	none detected	0 of 29	Within
Garrett Water Utility	none detected	none detected	0 of 29	Within
Gas City Water Department	none detected	none detected	0 of 29	Within
German Township Water District Inc.	none detected	none detected	1 of 29	Within
Goshen Water Utility	none detected	none detected	2 of 29	Within
Greencastle Department of Water	none detected	none detected	0 of 29	Within
Greenfield Water Utility	none detected	none detected	0 of 29	Within
Greensburg Municipal Water Works	none detected	none detected	0 of 29	Within
Griffith Water Department	none detected	none detected	0 of 29	Within
Hammond Water Works Department	none detected	none detected	0 of 29	Within
Hartford City Water Works	none detected	none detected	0 of 29	Within
Hebron Water Department	none detected	none detected	0 of 29	Within
Highland Water Works	none detected	none detected	0 of 29	Within
Hill Water Corporation	none detected	none detected	0 of 29	Within
Hoosier Hills Regional Water District	none detected	none detected	0 of 29	Within
Huntertown Water Works	none detected	none detected	0 of 29	Within
Huntingburg Municipal Water	none detected	none detected	0 of 29	Within
Huntington Water Department	none detected	none detected	0 of 29	Within
IN American Water - Lowell	none detected	none detected	0 of 29	Within
Indiana American Water - Crawfordsville	none detected	none detected	1 of 29	Within
Indiana American Water - Georgetown	none detected	none detected	0 of 29	Within
Indiana American Water - Johnson County	none detected	none detected	2 of 29	Within
Indiana American Water - Kokomo	none detected	none detected	0 of 29	Within
Indiana American Water - Mooresville	none detected	none detected	0 of 29	Within
Indiana American Water - Muncie	none detected	none detected	0 of 29	Within
Indiana American Water - Newburgh	none detected	none detected	0 of 29	Within
Indiana American Water - Noblesville	none detected	none detected	1 of 29	Within
Indiana American Water - Northwest	none detected	none detected	0 of 29	Within
Indiana American Water - Richmond	none detected	none detected	0 of 29	Within
Indiana American Water - S. Indiana	none detected	none detected	0 of 29	Within
Indiana American Water - Seymour	none detected	none detected	0 of 29	Within
Indiana American Water - Shelbyville	none detected	none detected	0 of 29	Within
Indiana American Water - Sullivan	none detected	none detected	0 of 29	Within
Indiana American Water - Wabash	none detected	none detected	0 of 29	Within
Indiana American Water - Warsaw	none detected	none detected	2 of 29	Within
Indiana American Water - West Lafayette	none detected	none detected	0 of 29	Within
Indiana American Water - Winchester	none detected	none detected	0 of 29	Within
Ingalls Water Company	none detected	none detected	0 of 29	Within
Ireland Utilities, Inc.	none detected	none detected	1 of 29	Within
Jasonville Water Department	none detected	none detected	0 of 29	Within
Jasper Municipal Water Utility	none detected	none detected	1 of 29	Within
Jennings Water, Inc.	none detected	none detected	0 of 29	Within
Kendallville Water Department	none detected	none detected	0 of 29	Within
Kent Water Company	none detected	none detected	0 of 29	Within
Knox Water Works	none detected	none detected	0 of 29	Within
L-m-s Conservancy District	none detected	none detected	0 of 29	Within
Lafayette Water Works, in	none detected	none detected	0 of 29	Within
Laporte Water Works	none detected	none detected	1 of 29	Within
Laville Jr. & Sr. High School	none detected	none detected	0 of 29	Within
Lawrenceburg Municipal Utilities	none detected	none detected	0 of 29	Within
Lebanon Utilities	none detected	none detected	0 of 29	Within
Ligonier Water Works	none detected	none detected	0 of 29	Within
Linton Municipal Water Utility	none detected	none detected	0 of 29	Within
Lippert Components (plant #30)	none detected	none detected	1 of 29	Within
Logansport Municipal Utility-well Field	none detected	none detected	0 of 29	Within
Loogootee Water Works	none detected	none detected	0 of 29	Within
Marion City Water Works	none detected	none detected	0 of 29	Within
Martinsville Water Utility	none detected	none detected	0 of 29	Within
Michigan City Department of Water Works	none detected	none detected	0 of 29	Within
Middlebury Water Department	none detected	none detected	0 of 29	Within
Mitchell Water Department	none detected	none detected	0 of 29	Within
Monticello Water Works	none detected	none detected	0 of 29	Within
Morgan County Rural Water Company	none detected	none detected	0 of 29	Within
Munster Water Company	none detected	none detected	0 of 29	Within
Napoleon Community Rural Water Corp.	none detected	none detected	1 of 29	Within
Nappanee Water Utility	none detected	none detected	0 of 29	Within
Nashville Water Department	none detected	none detected	0 of 29	Within
Naval Support Activity, Crane	none detected	none detected	0 of 29	Within
New Castle Utilities	none detected	none detected	0 of 29	Within
New Chicago Water Works	none detected	none detected	0 of 29	Within
New Haven Water Department	none detected	none detected	2 of 29	Within
New Pekin Water Utility	none detected	none detected	1 of 29	Within
North Dearborn Water Corporation	none detected	none detected	0 of 29	Within
North Lawrence Water Authority	none detected	none detected	0 of 29	Within
North Manchester Water Department	none detected	none detected	0 of 29	Within
North Vernon Water Department	none detected	none detected	0 of 29	Within
Northwest Jasper Regional Water District	none detected	none detected	0 of 29	Within
Paoli Water Department	none detected	none detected	0 of 29	Within
Patoka Lake Regional Water	none detected	none detected	0 of 29	Within
Patriot Water Department	none detected	none detected	0 of 29	Within
Pendleton Water Company	none detected	none detected	0 of 29	Within
Peru Water Department	none detected	none detected	0 of 29	Within
Petersburg Water Company	none detected	none detected	0 of 29	Within
Pittsboro Water Company	none detected	none detected	2 of 29	Within
Plainfield Re-entry Educational Facility	none detected	none detected	1 of 29	Within
Plainfield Water Works	none detected	none detected	3 of 29	Within
Plymouth Water Department, in	none detected	none detected	0 of 29	Within
Portland Municipal Water Plant	none detected	none detected	0 of 29	Within
Posey Township Water Corp.	none detected	none detected	0 of 29	Within
Prairie Vista Elementary School	none detected	none detected	0 of 29	Within
Princes Lake Water Department	none detected	none detected	0 of 29	Within
Princeton Water Department	none detected	none detected	0 of 29	Within
Purdue Univ. Water Works	none detected	none detected	6 of 29	Within
Rensselaer Water Department	none detected	none detected	0 of 29	Within
Reo Water Corporation	none detected	none detected	0 of 29	Within
Roann Water Works	none detected	none detected	0 of 29	Within
Robert Fase Senior Center	none detected	none detected	0 of 29	Within
Rochester Water Department	none detected	none detected	0 of 29	Within
Rockville Light & Water	none detected	none detected	0 of 29	Within
Royal Center Water Utility	none detected	none detected	0 of 29	Within
Rural Membership Water Corp. of Clark Co	none detected	none detected	0 of 29	Within
Rushville City Utility	none detected	none detected	0 of 29	Within
Salem Water Works	none detected	none detected	0 of 29	Within
Santa Claus Water Utility	none detected	none detected	0 of 29	Within
Schererville Water Department	none detected	none detected	0 of 29	Within
Scottsburg Water Department	none detected	none detected	1 of 29	Within
Seelyville Water Works	none detected	none detected	0 of 29	Within
Shenandoah High School	none detected	none detected	0 of 29	Within
Silver Creek Water Corporation	none detected	none detected	0 of 29	Within
Sisters of Holy Cross-st. Marys College	none detected	none detected	0 of 29	Within
South Harrison Water Corporation	none detected	none detected	0 of 29	Within
South Lawrence Utilities	none detected	none detected	0 of 29	Within
South Park Business Center	none detected	none detected	3 of 29	Within
Southern Monroe Water Authority	none detected	none detected	0 of 29	Within
Southwestern Bartholomew Water Corp.	none detected	none detected	4 of 29	Within
Speedway Water Works	none detected	none detected	3 of 29	Within
Springs Valley Regional Water District	none detected	none detected	0 of 29	Within
St. John Municipal Water Utility	none detected	none detected	0 of 29	Within
Stucker Fork Water Utility	none detected	none detected	0 of 29	Within
Tennyson Water Utility	none detected	none detected	0 of 29	Within
Tipton Utility Service B	none detected	none detected	0 of 29	Within
Town of Elizabeth	none detected	none detected	0 of 29	Within
Trail Tree/midcontinent Inn Inc.	none detected	none detected	0 of 29	Within
Tri-township Water Corporation	none detected	none detected	0 of 29	Within
Twin Lakes Utilities, Inc.	none detected	none detected	0 of 29	Within
Union City Water Works	none detected	none detected	0 of 29	Within
Upland Water Department	none detected	none detected	0 of 29	Within
Valley Rural Utility Company	none detected	none detected	0 of 29	Within
Valparaiso Department of Water Works	none detected	none detected	0 of 29	Within
Van Buren Water, Inc.	none detected	none detected	0 of 29	Within
Veolia Water of Boonville	none detected	none detected	0 of 29	Within
Vincennes Water Department	none detected	none detected	0 of 29	Within
Walkerton Light & Water	none detected	none detected	0 of 29	Within
Warren Municipal Water Works	none detected	none detected	0 of 29	Within
Washington Township Water	none detected	none detected	0 of 29	Within
Washington Twp Water Authority	none detected	none detected	0 of 29	Within
Washington Water Works	none detected	none detected	0 of 29	Within
Watson Rural Water Company	none detected	none detected	0 of 29	Within
Whiteland Water Works	none detected	none detected	2 of 29	Within
Whitestown South	none detected	none detected	4 of 29	Within
Whiting Water Department	none detected	none detected	0 of 29	Within
Yorktown Water Department	none detected	none detected	0 of 29	Within

All 230 systems the EPA tested in Indiana, every one of them with its own page. Each was tested for 29 PFAS compounds.

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Source, the EPA’s fifth Unregulated Contaminant Monitoring Rule, final dataset published 2026-10-15. Original data →