Water quality by county
in Florida
EPA sampled public water systems across Florida for PFAS under its UCMR 5 programme. Of the 67 counties, 33 have a reading above a federal limit and 7 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 |
|---|---|---|---|
| Pasco County | 659,114 | 20× | PFOS · 80.8 ng/L |
| Sumter County | 154,693 | 13× | PFOS · 53 ng/L |
| Miami-Dade County | 2,838,461 | 13× | PFOS · 50.3 ng/L |
| Escambia County | 331,275 | 9.8× | PFOA · 39.2 ng/L |
| Marion County | 428,905 | 9.8× | PFOS · 39 ng/L |
| Palm Beach County | 1,582,055 | 9.8× | PFOS · 39 ng/L |
| Broward County | 2,037,472 | 9.3× | PFOS · 37 ng/L |
| Pinellas County | 965,870 | 9.2× | PFOS · 36.9 ng/L |
| Lake County | 444,204 | 8.1× | PFOS · 32.4 ng/L |
| Santa Rosa County | 207,653 | 7.5× | PFOS · 30.2 ng/L |
| Citrus County | 170,174 | 6.3× | PFOS · 25 ng/L |
| Hillsborough County | 1,581,426 | 6.3× | PFOS · 25 ng/L |
| Orange County | 1,533,646 | 6.2× | PFOS · 24.8 ng/L |
| Volusia County | 602,772 | 5.5× | PFOS · 22 ng/L |
| Leon County | 300,488 | 4.3× | PFOS · 17.4 ng/L |
| Hernando County | 218,150 | 4.0× | PFOS · 16 ng/L |
| Wakulla County | 37,115 | 4.0× | PFOS · 16 ng/L |
| Brevard County | 658,447 | 3.8× | PFOS · 15 ng/L |
| St. Lucie County | 390,670 | 3.4× | PFOS · 13.4 ng/L |
| Martin County | 165,666 | 3.3× | PFOS · 13 ng/L |
| Polk County | 852,878 | 3.2× | PFOS · 12.8 ng/L |
| Lee County | 860,959 | 3.1× | PFOS · 12.3 ng/L |
| Collier County | 416,233 | 3.0× | PFOS · 12.1 ng/L |
| Indian River County | 172,139 | 2.5× | PFOS · 9.9 ng/L |
| Jackson County | 49,980 | 2.4× | PFOS · 9.4 ng/L |
| Highlands County | 109,778 | 1.9× | PFOS · 7.4 ng/L |
| Taylor County | 21,843 | 1.8× | PFOS · 7 ng/L |
| Seminole County | 494,605 | 1.7× | PFOS · 6.9 ng/L |
| Sarasota County | 476,604 | 1.4× | PFOA · 5.5 ng/L |
| Charlotte County | 212,122 | 1.3× | PFOA · 5.2 ng/L |
| DeSoto County | 36,744 | 1.3× | PFOA · 5.1 ng/L |
| Alachua County | 291,782 | 1.2× | PFOA · 4.8 ng/L |
| Osceola County | 468,058 | 1.1× | PFOS · 4.2 ng/L |
| Okeechobee County | 42,369 | under the limit | PFHxS · 3 ng/L |
| Baker County | 29,325 | under the limit | — |
| Bay County | 199,718 | under the limit | — |
| Bradford County | 28,075 | under the limit | — |
| Calhoun County | 13,278 | under the limit | — |
| Clay County | 236,760 | under the limit | — |
| Columbia County | 73,977 | under the limit | — |
| Dixie County | 17,614 | not sampled | — |
| Duval County | 1,055,159 | under the limit | — |
| Flagler County | 136,744 | under the limit | — |
| Franklin County | 12,979 | under the limit | — |
| Gadsden County | 44,151 | under the limit | — |
| Gilchrist County | 20,233 | under the limit | — |
| Glades County | 13,132 | under the limit | — |
| Gulf County | 15,876 | under the limit | — |
| Hamilton County | 14,334 | under the limit | — |
| Hardee County | 26,068 | under the limit | — |
| Hendry County | 46,130 | under the limit | — |
| Holmes County | 19,876 | not sampled | — |
| Jefferson County | 15,921 | under the limit | — |
| Lafayette County | 8,640 | not sampled | — |
| Levy County | 47,765 | not sampled | — |
| Liberty County | 7,955 | not sampled | — |
| Madison County | 18,364 | under the limit | — |
| Manatee County | 458,352 | under the limit | — |
| Monroe County | 80,908 | not sampled | — |
| Nassau County | 104,376 | under the limit | — |
| Okaloosa County | 220,483 | under the limit | — |
| Putnam County | 77,301 | under the limit | — |
| St. Johns County | 334,928 | under the limit | — |
| Suwannee County | 47,536 | under the limit | — |
| Union County | 15,738 | not sampled | — |
| Walton County | 89,666 | under the limit | — |
| Washington County | 26,503 | under the limit | — |