What is PFAS?
Water suppliers
PFAS value per supplier, 2023–2025. EPA limit — 4 ppt (0.004 µg/L) for PFOA and PFOS, set in 2024. Suppliers that detected PFOA or PFOS
are highlighted and listed first. “Not detected” means the contaminant was measured but
not found.
| Supplier | City | Population | PFAS (ug/L) |
|---|---|---|---|
| Harrison Co Water Association | Cynthiana | 16,736 | 0.0479 µg/L |
| Cynthiana Municipal Water Works | Cynthiana | 7,263 | 0.0370 µg/L |
| Fort Campbell Water System | — | 43,270 | 0.0273 µg/L |
| Georgetown Municipal Water Service | Georgetown | 44,608 | 0.0120 µg/L |
| Sturgis Water Works | Sturgis | 3,490 | 0.0108 µg/L |
| Whitley Co Water District | Williamsburg | 9,825 | 0.0100 µg/L |
| Cumberland Falls Highway Water District | — | 9,498 | 0.0086 µg/L |
| Union County Water District | — | 6,117 | 0.0086 µg/L |
| Paducah Water Works | Paducah | 65,004 | 0.0081 µg/L |
| Louisville Water Company | Louisville | 806,997 | 0.0075 µg/L |
| Crittenden-Livingston Co Water District | Salem | 9,571 | 0.0073 µg/L |
| Mt Washington Water Company | Mt Washington | 23,760 | 0.0072 µg/L |
| Cannonsburg Water District | Ashland | 8,953 | 0.0068 µg/L |
| Corbin Utilities Commission | — | 16,065 | 0.0067 µg/L |
| Taylorsville Water Works | Taylorsville | 22,286 | 0.0065 µg/L |
| Flatwoods Water Company | Flatwoods | 9,649 | 0.0065 µg/L |
| North Mclean Co Water District | Livermore | 2,934 | 0.0065 µg/L |
| Hardin County Water District #2 | Elizabethtown | 76,326 | 0.0062 µg/L |
| Ledbetter Water District | Ledbetter | 2,729 | 0.0062 µg/L |
| North Nelson Water District | Coxs Creek | 13,365 | 0.0057 µg/L |
| Whitesville Water Works | Whitesville | 3,672 | 0.0056 µg/L |
| Beattyville Water Works | Beattyville | 8,428 | 0.0054 µg/L |
| Grand Rivers Water System | Grand Rivers | 3,980 | 0.0052 µg/L |
| Owensboro Municipal Utilities | Owensboro | 60,473 | 0.0050 µg/L |
| Daviess Co Water District | Owensboro | 33,655 | 0.0050 µg/L |
| E Daviess Co Water Assoc Inc | Knottsville | 11,997 | 0.0050 µg/L |
| Buffalo Trail Water Assoc | Mayslick | 4,514 | 0.0050 µg/L |
| West Shelby Water District | Simpsonville | 6,994 | 0.0046 µg/L |
| Lyon County Water District | Kuttawa | 6,744 | 0.0044 µg/L |
| North Shelby Water District | Bagdad | 14,660 | 0.0041 µg/L |
| East Pendleton Water District | Falmouth | 5,515 | 0.0041 µg/L |
| Kentucky-American Water Co | Lexington | 669,042 | Not detected |
| Northern Kentucky Water District | Ft. Thomas | 259,949 | Not detected |
| Warren County Water District | Bowling Green | 91,118 | Not detected |
| Boone Co Water & Sewer District | Burlington | 66,300 | Not detected |
| Bowling Green Municipal Utilities | Bowling Green | 53,601 | Not detected |
| Frankfort Plant Board | Frankfort | 52,153 | Not detected |
| Ashland Water Works | Ashland | 44,402 | Not detected |
| Mountain Water Dist | Pikeville | 44,057 | Not detected |
| Hopkinsville Water Environment Authority | Hopkinsville | 41,350 | Not detected |
| Oldham County Water District | Buckner | 38,409 | Not detected |
| Glasgow Water Company | Glasgow | 36,766 | Not detected |
| Richmond Utilities | Richmond | 35,640 | Not detected |
| Nicholasville Water Department | Nicholasville | 35,266 | Not detected |
| Mccreary County Water District | Whitley City | 34,439 | Not detected |
| Meade County Water District | Bradenburg | 33,313 | Not detected |
| Danville City Water Works | Danville | 32,600 | Not detected |
| Henderson Water Utility/North | Henderson | 31,705 | Not detected |
| Franklin Water Works | Franklin | 31,602 | Not detected |
| Bardstown Municipal Water Dept | Bardstown | 31,185 | Not detected |
| Hardin County Water District #1 | Radcliff | 30,230 | Not detected |
| Winchester Municipal Utilities | Winchester | 29,823 | Not detected |
| Somerset Water Service | Somerset | 29,700 | Not detected |
| Florence Water & Sewer | Florence | 29,351 | Not detected |
| Madisonville Light & Water | — | 28,102 | Not detected |
| Prestonsburg City Utilities | Prestonsburg | 26,788 | Not detected |
| Hazard Water Department | Hazard | 26,730 | Not detected |
| Murray Water System | Murray | 26,302 | Not detected |
| Madison Co Utilities District | Richmond | 25,120 | Not detected |
| Campbellsville Municipal Water | Campbellsville | 24,874 | Not detected |
| Paintsville Municipal Water Works | Paintsville | 24,354 | Not detected |
| Shelbyville Water & Sewer Commission | Shelbyville | 23,760 | Not detected |
| Hardin Co. Water Dist #1/ft. Knox | Radcliff | 23,600 | Not detected |
| Western Pulaski Co Water District | Somerset | 23,264 | Not detected |
| Columbia/Adair Utilities District | — | 22,113 | Not detected |
| Southeastern Water Assoc/Nelson Valley | Somerset | 21,895 | Not detected |
| Monticello Water & Sewer Commission | Monticello | 21,000 | Not detected |
| Bullock Pen Water District | — | 20,048 | Not detected |
| Grayson County Water District | Leitchfield | 20,033 | Not detected |
| Rowan Water Inc | — | 18,765 | Not detected |
| Hardinsburg Ro Wtp | Hardinsburg | 18,437 | Not detected |
| Edmonson Co Water District | Brownsville | 17,848 | Not detected |
| Versailles Water System | Versailles | 17,822 | Not detected |
| Henry County Water District #2 | Campbellsburg | 17,716 | Not detected |
| Henderson County Water District | Henderson | 17,447 | Not detected |
| Green River Valley Water District | Horse Cave | 17,431 | Not detected |
| Christian Co Water District | Hopkinsville | 17,248 | Not detected |
| Laurel Co Water District #2 | London | 16,899 | Not detected |
| Muhlenberg Co Water District | Greenville | 16,845 | Not detected |
| Pineville Water System | Pineville | 16,573 | Not detected |
| Ohio County Water District | Hartford | 16,511 | Not detected |
| Barbourville Utilities | Barbourville | 16,420 | Not detected |
| Allen County Water District | Scottsville | 16,398 | Not detected |
| Mt Sterling Water Works | Mt Sterling | 16,391 | Not detected |
| Marion County Water District | Lebanon | 16,311 | Not detected |
| North Marshall Water District #1 | Benton | 16,276 | Not detected |
| East Laurel Water District | London | 16,062 | Not detected |
| Green Taylor Water District | Grennsburg | 15,497 | Not detected |
| Southern Water & Sewer District | Mcdoqwell | 15,110 | Not detected |
| Wood Creek Water District | London | 14,892 | Not detected |
| West Laurel Water Assoc Inc | London | 14,878 | Not detected |
| Garrard Co Water Assoc Inc | — | 14,806 | Not detected |
| Lawrenceburg Water & Sewer Dept | Lawrenceburg | 14,748 | Not detected |
| Southern Madison Water District | — | 14,707 | Not detected |
| Barkley Lake Water District | Cadiz | 14,284 | Not detected |
| Butler County Water System Inc | — | 14,256 | Not detected |
| Paris Water Works | Paris | 14,139 | Not detected |
| Jackson Co Water Association | Mckee | 13,629 | Not detected |
| Springfield Water Works | Springfield | 13,205 | Not detected |
| Big Sandy Water District | Catlettsburg | 13,044 | Not detected |