Water quality by county
in Kansas
EPA sampled public water systems across Kansas for PFAS under its UCMR 5 programme. Of the 105 counties, 5 have a reading above a federal limit and 51 have not been sampled at all — which is not a clean result, only an absence of one. Each county below shows what was found, at what concentration, and at which utility.
| county | Population | Worst result | Compound |
|---|---|---|---|
| Barton County | 24,835 | 6.0× | PFHxS · 60 ng/L |
| Geary County | 35,459 | 5.3× | PFOA · 21.1 ng/L |
| Sedgwick County | 536,081 | 1.1× | PFOS · 4.5 ng/L |
| Cowley County | 34,186 | 1.1× | PFOS · 4.4 ng/L |
| Pratt County | 9,137 | 1.0× | PFOS · 4.1 ng/L |
| Douglas County | 121,989 | under the limit | PFHxS · 4.2 ng/L |
| Saline County | 53,459 | under the limit | PFHxS · 3.3 ng/L |
| Shawnee County | 177,942 | under the limit | PFHxS · 3.2 ng/L |
| Stevens County | 5,035 | under the limit | PFHxS · 3.1 ng/L |
| Allen County | 12,425 | under the limit | — |
| Anderson County | 7,908 | not sampled | — |
| Atchison County | 16,249 | under the limit | — |
| Barber County | 4,070 | under the limit | — |
| Bourbon County | 14,424 | under the limit | — |
| Brown County | 9,142 | not sampled | — |
| Butler County | 69,158 | under the limit | — |
| Chase County | 2,507 | not sampled | — |
| Chautauqua County | 3,339 | not sampled | — |
| Cherokee County | 19,133 | under the limit | — |
| Cheyenne County | 2,646 | not sampled | — |
| Clark County | 1,873 | not sampled | — |
| Clay County | 7,969 | under the limit | — |
| Cloud County | 8,723 | under the limit | — |
| Coffey County | 8,301 | under the limit | — |
| Comanche County | 1,694 | not sampled | — |
| Crawford County | 38,904 | under the limit | — |
| Decatur County | 2,716 | not sampled | — |
| Dickinson County | 18,621 | under the limit | — |
| Doniphan County | 7,575 | under the limit | — |
| Edwards County | 2,731 | not sampled | — |
| Elk County | 2,436 | not sampled | — |
| Ellis County | 29,007 | under the limit | — |
| Ellsworth County | 6,316 | not sampled | — |
| Finney County | 38,354 | under the limit | — |
| Ford County | 34,072 | under the limit | — |
| Franklin County | 26,273 | under the limit | — |
| Gove County | 2,658 | not sampled | — |
| Graham County | 2,370 | not sampled | — |
| Grant County | 7,097 | under the limit | — |
| Gray County | 5,730 | not sampled | — |
| Greeley County | 1,152 | not sampled | — |
| Greenwood County | 5,871 | under the limit | — |
| Hamilton County | 2,488 | not sampled | — |
| Harper County | 5,413 | not sampled | — |
| Harvey County | 33,642 | under the limit | — |
| Haskell County | 3,591 | not sampled | — |
| Hodgeman County | 1,673 | not sampled | — |
| Jackson County | 13,525 | under the limit | — |
| Jefferson County | 18,332 | under the limit | — |
| Jewell County | 2,899 | not sampled | — |
| Johnson County | 632,276 | under the limit | — |
| Kearny County | 3,808 | not sampled | — |
| Kingman County | 6,946 | not sampled | — |
| Kiowa County | 2,436 | not sampled | — |
| Labette County | 19,692 | under the limit | — |
| Lane County | 1,482 | not sampled | — |
| Leavenworth County | 84,670 | under the limit | — |
| Lincoln County | 2,928 | under the limit | — |
| Linn County | 9,841 | not sampled | — |
| Logan County | 2,694 | not sampled | — |
| Lyon County | 32,520 | under the limit | — |
| Marion County | 11,670 | not sampled | — |
| Marshall County | 9,950 | not sampled | — |
| McPherson County | 30,334 | under the limit | — |
| Meade County | 3,892 | not sampled | — |
| Miami County | 35,737 | under the limit | — |
| Mitchell County | 5,803 | not sampled | — |
| Montgomery County | 30,459 | under the limit | — |
| Morris County | 5,279 | under the limit | — |
| Morton County | 2,485 | not sampled | — |
| Nemaha County | 10,062 | not sampled | — |
| Neosho County | 15,552 | under the limit | — |
| Ness County | 2,617 | not sampled | — |
| Norton County | 5,335 | not sampled | — |
| Osage County | 15,737 | not sampled | — |
| Osborne County | 3,353 | not sampled | — |
| Ottawa County | 5,853 | not sampled | — |
| Pawnee County | 6,012 | under the limit | — |
| Phillips County | 4,733 | not sampled | — |
| Pottawatomie County | 26,876 | under the limit | — |
| Rawlins County | 2,432 | not sampled | — |
| Reno County | 61,417 | under the limit | — |
| Republic County | 4,613 | under the limit | — |
| Rice County | 9,284 | under the limit | — |
| Riley County | 72,557 | under the limit | — |
| Rooks County | 4,748 | not sampled | — |
| Rush County | 2,810 | not sampled | — |
| Russell County | 6,620 | under the limit | — |
| Scott County | 4,914 | under the limit | — |
| Seward County | 21,276 | under the limit | — |
| Sheridan County | 2,397 | not sampled | — |
| Sherman County | 5,796 | under the limit | — |
| Smith County | 3,541 | not sampled | — |
| Stafford County | 3,901 | not sampled | — |
| Stanton County | 2,071 | not sampled | — |
| Sumner County | 22,336 | under the limit | — |
| Thomas County | 7,802 | under the limit | — |
| Trego County | 2,774 | not sampled | — |
| Wabaunsee County | 7,112 | under the limit | — |
| Wallace County | 1,472 | not sampled | — |
| Washington County | 5,572 | not sampled | — |
| Wichita County | 2,072 | not sampled | — |
| Wilson County | 8,398 | not sampled | — |
| Woodson County | 3,111 | not sampled | — |
| Wyandotte County | 169,418 | under the limit | — |