Water quality by county
in Nebraska
EPA sampled public water systems across Nebraska for PFAS under its UCMR 5 programme. Of the 93 counties, 4 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 |
|---|---|---|---|
| Cass County | 27,492 | 4.6× | PFOS · 18.5 ng/L |
| Lincoln County | 33,319 | 4.3× | PFOS · 17 ng/L |
| Hall County | 62,869 | 2.5× | PFHxS · 24.6 ng/L |
| Adams County | 31,196 | 1.6× | PFOS · 6.6 ng/L |
| Nemaha County | 7,046 | under the limit | PFHxS · 5.5 ng/L |
| Dodge County | 37,884 | under the limit | PFHxS · 3.3 ng/L |
| Antelope County | 6,358 | under the limit | — |
| Arthur County | 423 | not sampled | — |
| Banner County | 665 | not sampled | — |
| Blaine County | 454 | not sampled | — |
| Boone County | 5,354 | not sampled | — |
| Box Butte County | 10,703 | under the limit | — |
| Boyd County | 1,700 | not sampled | — |
| Brown County | 2,877 | not sampled | — |
| Buffalo County | 51,156 | under the limit | — |
| Burt County | 6,727 | not sampled | — |
| Butler County | 8,439 | not sampled | — |
| Cedar County | 8,262 | not sampled | — |
| Chase County | 3,764 | under the limit | — |
| Cherry County | 5,558 | not sampled | — |
| Cheyenne County | 9,602 | under the limit | — |
| Clay County | 6,103 | not sampled | — |
| Colfax County | 10,826 | under the limit | — |
| Cuming County | 8,952 | under the limit | — |
| Custer County | 10,487 | under the limit | — |
| Dakota County | 21,335 | under the limit | — |
| Dawes County | 8,003 | under the limit | — |
| Dawson County | 24,554 | under the limit | — |
| Deuel County | 1,892 | not sampled | — |
| Dixon County | 5,526 | not sampled | — |
| Douglas County | 601,158 | under the limit | — |
| Dundy County | 1,581 | under the limit | — |
| Fillmore County | 5,512 | not sampled | — |
| Franklin County | 2,817 | not sampled | — |
| Frontier County | 2,536 | not sampled | — |
| Furnas County | 4,468 | under the limit | — |
| Gage County | 21,687 | under the limit | — |
| Garden County | 1,804 | not sampled | — |
| Garfield County | 1,707 | not sampled | — |
| Gosper County | 1,808 | under the limit | — |
| Grant County | 573 | not sampled | — |
| Greeley County | 2,197 | not sampled | — |
| Hamilton County | 9,564 | under the limit | — |
| Harlan County | 3,018 | under the limit | — |
| Hayes County | 846 | not sampled | — |
| Hitchcock County | 2,460 | not sampled | — |
| Holt County | 10,120 | under the limit | — |
| Hooker County | 698 | not sampled | — |
| Howard County | 6,572 | not sampled | — |
| Jefferson County | 7,136 | under the limit | — |
| Johnson County | 5,219 | not sampled | — |
| Kearney County | 6,749 | not sampled | — |
| Keith County | 8,148 | under the limit | — |
| Keya Paha County | 819 | not sampled | — |
| Kimball County | 3,305 | not sampled | — |
| Knox County | 8,306 | not sampled | — |
| Lancaster County | 332,857 | under the limit | — |
| Logan County | 694 | not sampled | — |
| Loup County | 582 | not sampled | — |
| Madison County | 35,579 | under the limit | — |
| McPherson County | 376 | not sampled | — |
| Merrick County | 7,837 | not sampled | — |
| Morrill County | 4,485 | not sampled | — |
| Nance County | 3,262 | not sampled | — |
| Nuckolls County | 4,094 | not sampled | — |
| Otoe County | 16,591 | under the limit | — |
| Pawnee County | 2,521 | not sampled | — |
| Perkins County | 2,779 | not sampled | — |
| Phelps County | 9,042 | under the limit | — |
| Pierce County | 7,334 | not sampled | — |
| Platte County | 35,499 | under the limit | — |
| Polk County | 5,269 | not sampled | — |
| Red Willow County | 10,409 | under the limit | — |
| Richardson County | 7,666 | under the limit | — |
| Rock County | 1,241 | not sampled | — |
| Saline County | 14,740 | under the limit | — |
| Sarpy County | 204,828 | under the limit | — |
| Saunders County | 23,406 | under the limit | — |
| Scotts Bluff County | 35,734 | under the limit | — |
| Seward County | 17,769 | under the limit | — |
| Sheridan County | 4,927 | not sampled | — |
| Sherman County | 2,949 | not sampled | — |
| Sioux County | 1,099 | not sampled | — |
| Stanton County | 5,756 | not sampled | — |
| Thayer County | 4,870 | not sampled | — |
| Thomas County | 634 | not sampled | — |
| Thurston County | 6,637 | not sampled | — |
| Valley County | 4,032 | not sampled | — |
| Washington County | 21,254 | under the limit | — |
| Wayne County | 9,870 | under the limit | — |
| Webster County | 3,326 | not sampled | — |
| Wheeler County | 808 | not sampled | — |
| York County | 14,375 | under the limit | — |