PFAS in Missouri tap water

9 of 232 tested systems measured above the federal limit. 73 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
St Robert PWS	none detected	12 ppt	1 of 29	Above
Camdenton PWS	none detected	10.3 ppt	2 of 29	Above
St James PWS	none detected	9.9 ppt	7 of 29	Above
Ralls County Pwsd 1	6.3 ppt	none detected	4 of 29	Above
Lamar PWS	6.2 ppt	none detected	1 of 29	Above
Circle C MHP	none detected	5.9 ppt	2 of 29	Above
Cole County Pwsd 1	5.8 ppt	none detected	1 of 29	Above
St Peters PWS	4.9 ppt	none detected	4 of 29	Above
Springfield PWS	none detected	4.3 ppt	2 of 29	Above
Adair County Pwsd 1	none detected	none detected	1 of 29	Within
Anderson PWS	none detected	none detected	0 of 29	Within
Andrew County Pwsd 1	none detected	none detected	0 of 29	Within
Andrew County Pwsd 2	none detected	none detected	0 of 29	Within
Ashland PWS	none detected	none detected	0 of 29	Within
Aurora Verona	none detected	none detected	0 of 29	Within
Barton Dade Cedar Jasp Countycons Pwsd 1	none detected	none detected	0 of 29	Within
Belton PWS	none detected	none detected	1 of 29	Within
Blue Springs PWS	none detected	none detected	0 of 29	Within
Bolivar PWS	none detected	none detected	0 of 29	Within
Bonne Terre Prison	none detected	none detected	0 of 29	Within
Bonne Terre PWS	none detected	none detected	0 of 29	Within
Boone County Cons Pwsd 1	none detected	none detected	0 of 29	Within
Boone County Pwsd 10	none detected	none detected	0 of 29	Within
Boone County Pwsd 4	none detected	none detected	0 of 29	Within
Boone County Pwsd 9	none detected	none detected	0 of 29	Within
Boonville PWS	none detected	none detected	2 of 29	Within
Bowling Green PWS	none detected	none detected	1 of 29	Within
Branson PWS	none detected	none detected	0 of 29	Within
Brookfield PWS	none detected	none detected	1 of 29	Within
Butler County Pwsd 1	none detected	none detected	0 of 29	Within
Butler PWS	none detected	none detected	1 of 29	Within
California PWS	none detected	none detected	0 of 29	Within
Callaway 2 Water District	none detected	none detected	0 of 29	Within
Callaway County Pwsd 1	none detected	none detected	0 of 29	Within
Camden County Pwsd 4 Horseshoe Bend	none detected	none detected	0 of 29	Within
Cameron PWS	none detected	none detected	0 of 29	Within
Campbell PWS	none detected	none detected	0 of 29	Within
Cannon Pwsd 1	none detected	none detected	1 of 29	Within
Cape Girardeau PWS	none detected	none detected	1 of 29	Within
Cape Perry County Pwsd 1 South	none detected	none detected	0 of 29	Within
Carl Junction PWS	none detected	none detected	0 of 29	Within
Carrollton PWS	none detected	none detected	0 of 29	Within
Carthage PWS	none detected	none detected	0 of 29	Within
Caruthersville PWS	none detected	none detected	0 of 29	Within
Cass County Pwsd 2	none detected	none detected	1 of 29	Within
Cass County Pwsd 7	none detected	none detected	1 of 29	Within
Cass County Pwsd 9	none detected	none detected	0 of 29	Within
Centralia PWS	none detected	none detected	0 of 29	Within
Chariton Linn County Pwsd 3	none detected	none detected	1 of 29	Within
Charleston PWS	none detected	none detected	0 of 29	Within
Chillicothe Municipal Utilities PWS	none detected	none detected	0 of 29	Within
Clark County Cons Pwsd 1	none detected	none detected	0 of 29	Within
Clay County Pwsd 3	none detected	none detected	0 of 29	Within
Clay County Pwsd 6	none detected	none detected	1 of 29	Within
Clay County Pwsd 8	none detected	none detected	1 of 29	Within
Clinton Co Pwsd 4 Sys 1	none detected	none detected	1 of 29	Within
Clinton County Pwsd 3	none detected	none detected	1 of 29	Within
Cole Camp PWS	none detected	none detected	0 of 29	Within
Cole County Pwsd 2	none detected	none detected	0 of 29	Within
Cole County Pwsd 4	none detected	none detected	0 of 29	Within
Columbia PWS	none detected	none detected	0 of 29	Within
Crystal City PWS	none detected	none detected	1 of 29	Within
Cuba PWS	none detected	none detected	0 of 29	Within
Dekalb County Pwsd 1	none detected	none detected	0 of 29	Within
Desloge PWS	none detected	none detected	0 of 29	Within
Desoto PWS	none detected	none detected	0 of 29	Within
Dexter PWS	none detected	none detected	0 of 29	Within
Dunklin County Pwsd 1	none detected	none detected	0 of 29	Within
El Dorado Springs PWS	none detected	none detected	0 of 29	Within
Eldon PWS	none detected	none detected	0 of 29	Within
Ellington PWS	none detected	none detected	0 of 29	Within
Eureka PWS	none detected	none detected	0 of 29	Within
Excelsior Springs PWS	none detected	none detected	0 of 29	Within
Farmington Correctional Center	none detected	none detected	0 of 29	Within
Farmington PWS	none detected	none detected	2 of 29	Within
Festus PWS	none detected	none detected	1 of 29	Within
Fort Leonard Wood	none detected	none detected	1 of 29	Within
Franklin County Pwsd 1	none detected	none detected	0 of 29	Within
Franklin County Pwsd 3	none detected	none detected	0 of 29	Within
Fredericktown PWS	none detected	none detected	0 of 29	Within
Fulton PWS	none detected	none detected	0 of 29	Within
Gainesville PWS	none detected	none detected	0 of 29	Within
Gladstone PWS	none detected	none detected	0 of 29	Within
Grain Valley PWS	none detected	none detected	0 of 29	Within
Greene County Pwsd 1	none detected	none detected	0 of 29	Within
Grundy County Pwsd 1	none detected	none detected	0 of 29	Within
Hannibal PWS	none detected	none detected	1 of 29	Within
Harrison County Pwsd 2	none detected	none detected	0 of 29	Within
Harrisonville PWS	none detected	none detected	0 of 29	Within
Henry County Water Company	none detected	none detected	1 of 29	Within
Herculaneum PWS	none detected	none detected	1 of 29	Within
Higginsville PWS	none detected	none detected	1 of 29	Within
Holiday Hills Resort	none detected	none detected	0 of 29	Within
Hollister PWS	none detected	none detected	0 of 29	Within
Howard County Pwsd 2	none detected	none detected	0 of 29	Within
Independence PWS	none detected	none detected	0 of 29	Within
Jackson County Pwsd 1	none detected	none detected	0 of 29	Within
Jackson County Pwsd 12	none detected	none detected	1 of 29	Within
Jackson County Pwsd 13	none detected	none detected	0 of 29	Within
Jackson County Pwsd 15	none detected	none detected	0 of 29	Within
Jackson County Pwsd 16	none detected	none detected	0 of 29	Within
Jackson County Pwsd 2	none detected	none detected	0 of 29	Within
Jackson PWS	none detected	none detected	0 of 29	Within
Jasper County Pwsd 1	none detected	none detected	0 of 29	Within
Jefferson Co Pwsd 8	none detected	none detected	0 of 29	Within
Jefferson County Cons Pwsd C 1	none detected	none detected	0 of 29	Within
Jefferson County Pwsd 5	none detected	none detected	0 of 29	Within
Jefferson County Pwsd 6	none detected	none detected	1 of 29	Within
Jefferson County Pwsd 7	none detected	none detected	0 of 29	Within
Jefferson County Pwsd 1	none detected	none detected	0 of 29	Within
Jefferson County Pwsd 10	none detected	none detected	0 of 29	Within
Jefferson County Pwsd 2	none detected	none detected	0 of 29	Within
Jefferson County Pwsd 3	none detected	none detected	0 of 29	Within
Johnson County Pwsd 1	none detected	none detected	0 of 29	Within
Johnson County Pwsd 2	none detected	none detected	0 of 29	Within
Johnson County Pwsd 3	none detected	none detected	0 of 29	Within
Kansas City PWS	none detected	none detected	1 of 29	Within
Kearney PWS	none detected	none detected	1 of 29	Within
Kennett PWS	none detected	none detected	1 of 29	Within
Kirksville PWS	none detected	none detected	1 of 29	Within
Kirkwood PWS	none detected	none detected	0 of 29	Within
Knox County Public Water & Sewer Dist 1	none detected	none detected	1 of 29	Within
Laclede County Pwsd 1	none detected	none detected	0 of 29	Within
Laclede County Pwsd 3	none detected	none detected	0 of 29	Within
Laf Jo Saline County Cons Pwsd 2	none detected	none detected	1 of 29	Within
Lafayette County Pwsd 1	none detected	none detected	0 of 29	Within
Lake Forest Estates	none detected	none detected	0 of 29	Within
Lebanon PWS	none detected	none detected	0 of 29	Within
Lees Summit PWS	none detected	none detected	1 of 29	Within
Lexington PWS	none detected	none detected	0 of 29	Within
Liberty PWS	none detected	none detected	0 of 29	Within
Lincoln County Pwsd 1	none detected	none detected	0 of 29	Within
Louisiana PWS	none detected	none detected	1 of 29	Within
Macon Co Pwsd 1	none detected	none detected	1 of 29	Within
Macon PWS	none detected	none detected	1 of 29	Within
Malden PWS	none detected	none detected	0 of 29	Within
Marion County Pwsd 1	none detected	none detected	1 of 29	Within
Marshall PWS	none detected	none detected	0 of 29	Within
Marshfield PWS	none detected	none detected	0 of 29	Within
Maryville PWS	none detected	none detected	1 of 29	Within
Mercer County Pwsd 1	none detected	none detected	1 of 29	Within
Mo American Jefferson City District	none detected	none detected	1 of 29	Within
Mo American Joplin	none detected	none detected	0 of 29	Within
Mo American Mexico	none detected	none detected	0 of 29	Within
Mo American Platte County	none detected	none detected	0 of 29	Within
Mo American St Joseph	none detected	none detected	0 of 29	Within
Mo American St Louis St Charles Counties	none detected	none detected	1 of 29	Within
Mo American Tri State	none detected	none detected	0 of 29	Within
Mo American Warrensburg	none detected	none detected	0 of 29	Within
Moberly PWS	none detected	none detected	1 of 29	Within
Monett PWS	none detected	none detected	1 of 29	Within
Monroe City Pws, Mo	none detected	none detected	1 of 29	Within
Monroe County Pwsd 2	none detected	none detected	1 of 29	Within
Montgomery Co Pwsd 1	none detected	none detected	0 of 29	Within
Mound City PWS	none detected	none detected	0 of 29	Within
Mount Vernon PWS	none detected	none detected	0 of 29	Within
Mountain Grove PWS	none detected	none detected	0 of 29	Within
Neosho PWS	none detected	none detected	0 of 29	Within
Nevada PWS	none detected	none detected	0 of 29	Within
Nixa PWS	none detected	none detected	0 of 29	Within
Nodaway County Pwsd 1	none detected	none detected	1 of 29	Within
North Kansas City PWS	none detected	none detected	3 of 29	Within
Northwood Elementary School	none detected	none detected	0 of 29	Within
Oak Grove PWS	none detected	none detected	0 of 29	Within
Odessa PWS	none detected	none detected	0 of 29	Within
Ofallon PWS	none detected	none detected	2 of 29	Within
Ozark PWS	none detected	none detected	1 of 29	Within
Pacific PWS	none detected	none detected	0 of 29	Within
Palmyra PWS	none detected	none detected	0 of 29	Within
Park Hills PWS	none detected	none detected	0 of 29	Within
Park Place Master Assn	none detected	none detected	0 of 29	Within
Peculiar PWS	none detected	none detected	1 of 29	Within
Pemiscot County Con Pwsd 1	none detected	none detected	0 of 29	Within
Perryville PWS	none detected	none detected	0 of 29	Within
Petro Stopping Center	none detected	none detected	0 of 29	Within
Pevely PWS	none detected	none detected	0 of 29	Within
Pike County Pwsd 1	none detected	none detected	2 of 29	Within
Pilot Grove PWS	none detected	none detected	0 of 29	Within
Platte City PWS	none detected	none detected	1 of 29	Within
Platte Co Pwsd 4	none detected	none detected	2 of 29	Within
Platte County Cons Pwsd 1	none detected	none detected	1 of 29	Within
Pleasant Hill PWS	none detected	none detected	1 of 29	Within
Poplar Bluff PWS	none detected	none detected	0 of 29	Within
Pulaski County Pwsd 1	none detected	none detected	0 of 29	Within
Pulaski County Pwsd 2	none detected	none detected	0 of 29	Within
Ray County Cons Pwsd 2	none detected	none detected	0 of 29	Within
Raymore PWS	none detected	none detected	0 of 29	Within
Raytown Water Company	none detected	none detected	0 of 29	Within
Republic PWS	none detected	none detected	0 of 29	Within
Richmond PWS	none detected	none detected	0 of 29	Within
Rolla PWS	none detected	none detected	0 of 29	Within
S K & M Water and Sewer Company	none detected	none detected	0 of 29	Within
Salem PWS	none detected	none detected	0 of 29	Within
Savannah PWS	none detected	none detected	0 of 29	Within
Schuyler County Consolidated Pwsd 1	none detected	none detected	1 of 29	Within
Scotland County Cons Pwsd 1	none detected	none detected	1 of 29	Within
Scott City PWS	none detected	none detected	1 of 29	Within
Sedalia PWS	none detected	none detected	0 of 29	Within
Shelbyville PWS	none detected	none detected	1 of 29	Within
Sikeston PWS	none detected	none detected	2 of 29	Within
Silver Dollar City Marvel Cave	none detected	none detected	0 of 29	Within
Smithville PWS	none detected	none detected	1 of 29	Within
St Charles Co Pwsd #2 Wright City	none detected	none detected	0 of 29	Within
St Charles County Pwsd 2	none detected	none detected	1 of 29	Within
St Charles PWS	none detected	none detected	0 of 29	Within
St Clair PWS	none detected	none detected	1 of 29	Within
St Louis City PWS	none detected	none detected	0 of 29	Within
Ste Genevieve County Pwsd 1 Sc	none detected	none detected	0 of 29	Within
Ste Genevieve PWS	none detected	none detected	0 of 29	Within
Stoddard County Pwsd 1	none detected	none detected	0 of 29	Within
Sullivan County Pwsd 1	none detected	none detected	0 of 29	Within
Sullivan PWS	none detected	none detected	0 of 29	Within
Sunshine Acres Subd	none detected	none detected	0 of 29	Within
Taney County Pwsd 2	none detected	none detected	0 of 29	Within
Taney County Pwsd 3	none detected	none detected	0 of 29	Within
Thomas Hill Pwsd 1	none detected	none detected	1 of 29	Within
Tipton PWS	none detected	none detected	0 of 29	Within
Treehouse Condominiums	none detected	none detected	0 of 29	Within
Trenton Municipal Utilities PWS	none detected	none detected	0 of 29	Within
Troy PWS	none detected	none detected	0 of 29	Within
Union PWS	none detected	none detected	0 of 29	Within
University of Missouri Columbia	none detected	none detected	0 of 29	Within
Vernon County Cons Pwsd 1	none detected	none detected	0 of 29	Within
Warrenton PWS	none detected	none detected	0 of 29	Within
Washington PWS	none detected	none detected	0 of 29	Within
Waynesville PWS	none detected	none detected	0 of 29	Within
Webb City PWS	none detected	none detected	0 of 29	Within
Wentzville	none detected	none detected	0 of 29	Within
West Plains PWS	none detected	none detected	1 of 29	Within
Westmier Subdivision	none detected	none detected	0 of 29	Within
Whiteman Air Base	none detected	none detected	0 of 29	Within
Willard PWS	none detected	none detected	0 of 29	Within

All 232 systems the EPA tested in Missouri, 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 →