State system profile

PFAS in Kentucky drinking water

Active community water systems with complete EPA UCMR 5 monitoring, summarized using yearly averages from results available through January 15, 2026.

Source EPA UCMR 5 Period 2023–2025 Systems included 205 Release ucmr5-2026-01-15-analysis-v0.2
Systems with a yearly average at or above an EPA-based study benchmark
4.4%9 of 205 active community water systems

All 205 systems had enough required samples to calculate a yearly average. 9 had at least one yearly average at or above a study benchmark; 196 did not.

EPA-based study benchmark: the unrounded cutoff this research uses to reproduce EPA’s January 2026 technical-assistance classification around the April 2024 federal levels. It is not a current standard or compliance finding and cannot determine household exposure or health risk.

Check your area

Find your water system

ZIP codes are used only to route visitors to public water systems that reported serving them. Confirm the actual provider using a water bill or utility record.

Open the system lookup →Read the methodology
Compound summary

System counts in Kentucky

Each count shows how many included water systems had a yearly average at or above the named study benchmark.

Community water systems with yearly averages at or above the EPA-based study benchmarks used in the January 2026 research release for Kentucky.
Study benchmarkSystems at or above benchmarkWater systems includedPercent
PFOA: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt)52052.4%
PFOS: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt)42052.0%
PFHxS: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)02050.0%
PFNA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)02050.0%
HFPO-DA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt)02050.0%
Hazard Index: 1.5 study benchmark with at least two detected components (reproduces EPA classification around 1)02050.0%
System directory

Community water systems with complete monitoring

“Complete monitoring” means at least one sampling location had all required samples needed for a yearly average. Each PWSID appears once, preventing double counting across ZIP associations.

Active community water systems with complete UCMR 5 monitoring in Kentucky.
Public water systemPWSIDPopulation servedPrimary sourceSampling locationsStudy benchmark result
ALBANY WATER WORKSKY02700039,042Surface water1Below all study benchmarks
ALLEN COUNTY WATER DISTRICTKY002095616,398Surface water purchased2Below all study benchmarks
ARLINGTON WATER DEPARTMENTKY0200009301Ground water1Below all study benchmarks
ASHLAND WATER WORKSKY010001144,402Surface water1Below all study benchmarks
BARBOURVILLE UTILITIESKY061001616,420Surface water1Below all study benchmarks
BARDSTOWN MUNICIPAL WATER DEPTKY090001731,185Surface water1Below all study benchmarks
BARKLEY LAKE WATER DISTRICTKY111001914,284Surface water1Below all study benchmarks
BATH COUNTY WATER DISTRICTKY006002210,083Surface water purchased3Below all study benchmarks
BEAVER DAM MUNICIPAL WATER & SEWERKY09200253,901Ground water2Below all study benchmarks
BENHAM WATER PLANTKY0480028855Surface water1Below all study benchmarks
BENTON WATER & SEWERKY07900297,981Ground water1Below all study benchmarks
BEREA MUNICIPAL UTILITIESKY07600309,972Surface water1Below all study benchmarks
BIG SANDY WATER DISTRICTKY010094413,044Surface water purchased4Below all study benchmarks
BLOOMFIELD WATER & SEWER DEPTKY09000315,771Surface water purchased1Below all study benchmarks
BOONE CO WATER & SEWER DISTRICTKY008003466,300Surface water purchased1Below all study benchmarks
BOONEVILLE WATER AND SEWERKY09500365,346Surface water1Below all study benchmarks
BOWLING GREEN MUNICIPAL UTILITIESKY114003853,601Surface water1Below all study benchmarks
BRACKEN COUNTY WATER DISTRICTKY01200396,456Ground water purchased1Below all study benchmarks
BRANDENBURG WATER WORKSKY08200412,880Ground water1Below all study benchmarks
BREATHITT CO WATER DISTRICTKY01310125,068Surface water purchased2Below all study benchmarks
BRONSTON WATER ASSOCIATON INCKY10000435,114Surface water purchased1Below all study benchmarks
BUFFALO TRAIL WATER ASSOCKY08100464,514Surface water purchased2Below all study benchmarks
BUTLER COUNTY WATER SYSTEM INCKY016005214,256Surface water1Below all study benchmarks
CADIZ MUNICIPAL WATER COKY11100546,165Surface water1Below all study benchmarks
CALDWELL COUNTY WATER DISTRICTKY01705286,000Surface water purchased3Below all study benchmarks
CALVERT CITY MUNICIPAL WATER DEPARTMENTKY07900564,381Ground water1Below all study benchmarks
CAMPBELLSVILLE MUNICIPAL WATERKY109006024,874Surface water1Below all study benchmarks
CAMPTON WATER SYSTEMKY11900616,600Surface water1Below all study benchmarks
CANNONSBURG WATER DISTRICTKY01000648,953Surface water purchased2Below all study benchmarks
CARROLL CO WATER DISTRICT #1KY02100665,934Ground water2Below all study benchmarks
CARROLLTON UTILITIESKY02100676,851Ground water2Below all study benchmarks
CAVELAND ENVIRONMENTAL AUTHORITY, INC.KY00503443,264Surface water purchased2Below all study benchmarks
CAWOOD WATER DISTRICTKY04805654,428Surface water1Below all study benchmarks
CENTRAL CITY WATER & SEWERKY08900715,601Surface water1Below all study benchmarks
CHRISTIAN CO WATER DISTRICTKY024052117,248Surface water purchased2Below all study benchmarks
CITY OF SOUTH SHORE WATER WORKSKY04504106,798Surface water purchased1Below all study benchmarks
COLUMBIA/ADAIR UTILITIES DISTRICTKY001101622,113Surface water3Below all study benchmarks
CORBIN UTILITIES COMMISSIONKY118008516,065Surface water1At or above a study benchmark
CRITTENDEN-LIVINGSTON CO WATER DISTRICTKY07005329,571Surface water1Below all study benchmarks
CUMBERLAND CO WATER DISTRICTKY02902717,099Surface water purchased3Below all study benchmarks
CUMBERLAND FALLS HIGHWAY WATER DISTRICTKY11800939,498Surface water purchased2Below all study benchmarks
CUMBERLAND MUNICIPAL WATER WORKSKY04800922,843Surface water1Below all study benchmarks
CYNTHIANA MUNICIPAL WATER WORKSKY04900967,263Surface water1At or above a study benchmark
DANVILLE CITY WATER WORKSKY011009732,600Surface water1Below all study benchmarks
DAWSON SPRINGS WATER & SEWERKY05409582,631Surface water1Below all study benchmarks
E DAVIESS CO WATER ASSOC INCKY030010911,997Ground water purchased1Below all study benchmarks
EAST CASEY CO WATER DISTRICTKY023055612,460Surface water purchased4Below all study benchmarks
EAST CLARK CO WATER DISTRICTKY02509817,366Surface water purchased2Below all study benchmarks
EAST LAUREL WATER DISTRICTKY063079716,062Surface water purchased1Below all study benchmarks
EAST LOGAN WATER DISTRICTKY07109519,060Surface water purchased1Below all study benchmarks
EAST PENDLETON WATER DISTRICTKY09601125,515Surface water purchased2Below all study benchmarks
EDDYVILLE WATER DEPARTMENTKY07201133,843Surface water1Below all study benchmarks
EDMONSON CO WATER DISTRICTKY031011417,848Surface water2Below all study benchmarks
EDMONTON WATER WORKSKY08501158,515Surface water purchased2Below all study benchmarks
ESTILL CO WATER DISTRICTKY03301239,501Surface water purchased2Below all study benchmarks
EUBANK WATER SYSTEMKY100012412,492Surface water purchased1Below all study benchmarks
FARMDALE WATER DISTRICTKY03701288,203Surface water purchased2Below all study benchmarks
FLATWOODS WATER COMPANYKY04501329,649Surface water purchased2Below all study benchmarks
FLEMING CO WATER ASSOCIATIONKY03501339,693Surface water purchased3Below all study benchmarks
FLEMINGSBURG UTILITY SYSTEMKY03501344,583Surface water1Below all study benchmarks
FLORENCE WATER & SEWERKY008013529,351Surface water purchased1Below all study benchmarks
FRANKFORT PLANT BOARDKY037014352,153Surface water1Below all study benchmarks
FRANKLIN WATER WORKS, KYKY107014431,602Surface water1Below all study benchmarks
FRENCHBURG WATER COMPANYKY08301485,401Surface water purchased1Below all study benchmarks
FULTON MUNICIPAL WATER SYSTEMKY03801494,662Ground water1Below all study benchmarks
GALLATIN COUNTY WATER DISTRICTKY03901305,860Ground water3Below all study benchmarks
GARRARD CO WATER ASSOC INCKY040015114,806Surface water purchased2Below all study benchmarks
GEORGETOWN MUNICIPAL WATER SERVICEKY105015744,608Surface water1At or above a study benchmark
GLASGOW WATER COMPANYKY005092936,766Surface water2Below all study benchmarks
GRAND RIVERS WATER SYSTEMKY07001623,980Surface water purchased1Below all study benchmarks
GRAVES CO WATER DIST - CONSUMERSKY04200845,016Ground water purchased1Below all study benchmarks
GRAVES CO WATER DIST - HICKORYKY04201944,069Ground water1Below all study benchmarks
GRAYSON COUNTY WATER DISTRICTKY043061620,033Surface water2Below all study benchmarks
GRAYSON UTILITY COMMISSIONKY022016410,950Surface water2Below all study benchmarks
GREEN RIVER VALLEY WATER DISTRICTKY050016617,431Surface water1Below all study benchmarks
GREEN TAYLOR WATER DISTRICTKY044016715,497Surface water purchased4Below all study benchmarks
GREENUP WATER SYSTEMKY045016912,193Surface water1Below all study benchmarks
GREENVILLE UTILITIES COMMISSIONKY08901705,649Surface water1Below all study benchmarks
HARDIN CO. WATER DIST #1/FT. KNOXKY047099023,600Surface water purchased1Below all study benchmarks
HARDIN COUNTY WATER DISTRICT #1KY047039330,230Surface water1Below all study benchmarks
HARDIN COUNTY WATER DISTRICT #2KY047017576,326Surface water3Below all study benchmarks
HARDINSBURG RO WTPKY014096618,437Ground water1Below all study benchmarks
HARLAN MUNICIPAL WATER WORKSKY04801784,574Surface water1Below all study benchmarks
HARRISON CO WATER ASSOCKY049017916,736Surface water purchased2At or above a study benchmark
HARRODSBURG MUNICIPAL WATER DEPARTMENTKY08401808,310Surface water1Below all study benchmarks
HAZARD WATER DEPARTMENTKY097018426,730Surface water1Below all study benchmarks
HENDERSON COUNTY WATER DISTRICTKY051018917,447Surface water purchased2Below all study benchmarks
HENDERSON WATER UTILITY/NORTHKY051018831,705Surface water1Below all study benchmarks
HENRY COUNTY WATER DISTRICT #2KY052019217,716Ground water1Below all study benchmarks
HOPKINSVILLE WATER ENVIRONMENT AUTHORITYKY024020141,350Surface water1Below all study benchmarks
HUSTONVILLE WATER WORKSKY06902035,420Surface water purchased1Below all study benchmarks
HYDEN LESLIE CO WATER DISTRICTKY06602049,614Surface water1Below all study benchmarks
IRVINE MUNICIPAL UTILITIESKY03302055,649Surface water1Below all study benchmarks
JACKSON CO WATER ASSOCIATIONKY055020913,629Surface water1Below all study benchmarks
JAMESTOWN MUNICIPAL WATER WORKSKY10402107,402Surface water1Below all study benchmarks
JESSAMINE CO WATER DISTRICT #1KY05702146,831Surface water purchased1Below all study benchmarks
JESSAMINE S ELKHORN WATER DISTKY05702498,826Surface water purchased1Below all study benchmarks
JONATHAN CREEK WATER DISTRICTKY07902167,182Ground water1Below all study benchmarks
JUDY WATER ASSOCIATIONKY08701475,539Surface water purchased2Below all study benchmarks
KENTUCKY-AMERICAN WATER COKY0340250669,042Surface water5Below all study benchmarks
KIRKSVILLE WATER ASSOCIATIONKY07606725,940Surface water purchased1Below all study benchmarks
KNOX COUNTY UTILITY COMMISSIONKY06101108,313Surface water1Below all study benchmarks
LAGRANGE UTILITIES COMMISSIONKY093048110,067Ground water purchased1Below all study benchmarks
LAUREL CO WATER DISTRICT #2KY063023816,899Surface water1Below all study benchmarks
LAWRENCEBURG WATER & SEWER DEPTKY003023914,748Surface water1Below all study benchmarks
LEBANON WATER WORKS CO INCKY07802417,642Surface water2Below all study benchmarks
LEDBETTER WATER DISTRICTKY07002432,729Surface water purchased2Below all study benchmarks
LEITCHFIELD WATER WORKSKY04302448,438Surface water1Below all study benchmarks
LONDON UTILITY COMMISSIONKY06302558,855Surface water1Below all study benchmarks
LOUISA WATER DEPARTMENTKY06402578,236Surface water1Below all study benchmarks
LOUISVILLE WATER COMPANYKY0560258806,997Surface water2Below all study benchmarks
LYON COUNTY WATER DISTRICTKY07209336,744Surface water purchased5Below all study benchmarks
MADISON CO UTILITIES DISTRICTKY076022425,120Surface water purchased1Below all study benchmarks
MAGOFFIN COUNTY WATER DISTRICTKY07705258,925Surface water purchased1Below all study benchmarks
MAMMOTH CAVE/CENTRAL SYSTEMKY03109405,000Surface water purchased1Below all study benchmarks
MANCHESTER WATER WORKS, KYKY026073711,349Surface water1Below all study benchmarks
MARION COUNTY WATER DISTRICTKY078026816,311Surface water purchased2Below all study benchmarks
MARTIN CO WATER DISTRICT #1KY08002739,003Surface water1Below all study benchmarks
MAYFIELD ELECTRIC & WATERKY042027412,379Ground water1Below all study benchmarks
MAYSVILLE UTILITY COMMISSIONKY081027511,263Surface water1Below all study benchmarks
MCCREARY COUNTY WATER DISTRICTKY074027634,439Surface water2Below all study benchmarks
MCKINNEY WATER DISTRICTKY06902785,423Surface water purchased2Below all study benchmarks
MILTON WATER & SEWER DEPARTMENTKY11202893,861Ground water1Below all study benchmarks
MONROE COUNTY WATER DISTRICTKY08601509,608Surface water1Below all study benchmarks
MONTICELLO WATER & SEWER COMMISSIONKY116029121,000Surface water1Below all study benchmarks
MOREHEAD STATE UNIVERSITYKY10304806,500Surface water1Below all study benchmarks
MOREHEAD UTILITY PLANT BOARDKY10302929,052Surface water1Below all study benchmarks
MORGAN COUNTY WATER DISTRICTKY08805947,502Surface water purchased2Below all study benchmarks
MORGANFIELD WATER WORKSKY11302935,170Surface water1Below all study benchmarks
MOUNTAIN WATER DISTKY098057544,057Surface water1Below all study benchmarks
MT STERLING WATER WORKSKY087029816,391Surface water1Below all study benchmarks
MT VERNON WATER WORKSKY10202994,951Surface water1Below all study benchmarks
MUHLENBERG CO WATER DISTRICTKY089030216,845Surface water purchased1Below all study benchmarks
MUHLENBERG CO WATER DISTRICT #3KY08903047,075Surface water purchased1Below all study benchmarks
MURRAY WATER SYSTEMKY018030626,302Ground water1Below all study benchmarks
NEBO WATER DISTRICTKY05409774,702Surface water purchased2Below all study benchmarks
NICHOLAS CO WATER DISTRICTKY09103144,089Surface water purchased4Below all study benchmarks
NICHOLASVILLE WATER DEPARTMENTKY057031535,266Surface water1Below all study benchmarks
NORTH HOPKINS WATER DISTRICTKY05401383,725Surface water purchased2Below all study benchmarks
NORTH MANCHESTER WATER ASSOCKY02602665,332Surface water purchased1Below all study benchmarks
NORTH MARSHALL WATER DISTRICT #1KY079031916,276Ground water2Below all study benchmarks
NORTH MCLEAN CO WATER DISTRICTKY03003202,934Surface water purchased2At or above a study benchmark
NORTH MERCER WATER DISTRICTKY08403219,775Surface water purchased2Below all study benchmarks
NORTH NELSON WATER DISTRICTKY090032313,365Surface water purchased2Below all study benchmarks
NORTHERN KENTUCKY WATER DISTRICTKY0590220259,949Surface water3Below all study benchmarks
OAK GROVE UTILITIES OFFICEKY02403298,762Surface water purchased1Below all study benchmarks
OHIO COUNTY WATER DISTRICTKY092033216,511Surface water1Below all study benchmarks
OLDHAM COUNTY WATER DISTRICTKY093033338,409Ground water1Below all study benchmarks
OLIVE HILL MUNICIPAL WATER WORKSKY02203356,192Surface water1Below all study benchmarks
OWENSBORO MUNICIPAL UTILITIESKY030033660,473Ground water1Below all study benchmarks
PADUCAH WATER WORKSKY073053365,004Surface water1At or above a study benchmark
PAINTSVILLE MUNICIPAL WATER WORKSKY058034024,354Surface water1Below all study benchmarks
PARIS WATER WORKSKY009034314,139Surface water1Below all study benchmarks
PARKSVILLE WATER DISTRICTKY01103454,261Surface water purchased1Below all study benchmarks
PENDLETON CO WATER DISTRICT #1/SOUTHKY09604993,713Surface water purchased1Below all study benchmarks
PIKEVILLE WATER DEPARTMENTKY09803509,638Surface water1Below all study benchmarks
PINEVILLE WATER SYSTEMKY007035316,573Surface water1Below all study benchmarks
POWELL VALLEY WATER DISTRICTKY09903577,128Surface water purchased2Below all study benchmarks
PRESTONSBURG CITY UTILITIESKY036035826,788Surface water1Below all study benchmarks
PRINCETON WATER & SEWER COMMISSIONKY01703607,007Surface water1Below all study benchmarks
PROVIDENCE WATER WORKSKY11703614,538Surface water1Below all study benchmarks
RICHMOND UTILITIESKY076037035,640Surface water1Below all study benchmarks
ROWAN WATER INCKY103037518,765Surface water purchased1Below all study benchmarks
RUSSELL SPRINGS WATER & SEWERKY10403779,409Surface water purchased2Below all study benchmarks
RUSSELL WATER COMPANYKY04503765,181Surface water1Below all study benchmarks
RUSSELLVILLE MUN WATER WORKSKY07103788,613Surface water purchased1Below all study benchmarks
S E DAVIESS CO WATER DISTRICTKY030038733,655Ground water purchased2At or above a study benchmark
SANDY HOOK WATER DISTRICTKY03203833,528Ground water1Below all study benchmarks
SCIENCE HILL WATER WORKSKY10003625,940Surface water purchased1Below all study benchmarks
SCOTTSVILLE WATER DEPARTMENTKY00203866,864Surface water1Below all study benchmarks
SEBREE WATER DEPARTMENTKY11703881,743Surface water purchased2Below all study benchmarks
SHARPSBURG WATER DISTRICTKY00603924,332Surface water purchased2Below all study benchmarks
SIMPSON COUNTY WATER DISTRICTKY10703988,946Surface water purchased1Below all study benchmarks
SO ANDERSON WATER DISTRICTKY00306608,417Surface water purchased2Below all study benchmarks
SO WOODFORD CO WATER DISTRICTKY12004114,218Surface water purchased1Below all study benchmarks
SOMERSET WATER SERVICEKY100040329,700Surface water1Below all study benchmarks
SOUTH HOPKINS WATER DISTRICTKY05404068,440Surface water purchased2Below all study benchmarks
SOUTH LOGAN WATER ASSOCIATIONKY07107075,198Surface water purchased1Below all study benchmarks
SOUTHEASTERN WATER ASSOC/NELSON VALLEYKY100031121,895Surface water purchased1Below all study benchmarks
SOUTHERN WATER & SEWER DISTRICTKY036002615,110Surface water2Below all study benchmarks
SPRINGFIELD WATER WORKSKY115041513,205Surface water1Below all study benchmarks
STANFORD WATER WORKSKY06904179,284Surface water1Below all study benchmarks
STANTON WATER WORKSKY09904186,611Surface water purchased1Below all study benchmarks
STURGIS WATER WORKSKY11304223,490Surface water purchased1Below all study benchmarks
TODD COUNTY WATER DISTRICTKY11009449,801Surface water purchased1Below all study benchmarks
TRIMBLE CO WATER DISTRICT #1KY11204314,146Ground water1Below all study benchmarks
US 60 WATER DISTRICTKY10604367,892Surface water purchased1Below all study benchmarks
VANCEBURG ELECTRIC PLANT BOARDKY06804386,921Surface water purchased1Below all study benchmarks
VERSAILLES WATER SYSTEMKY120043917,822Surface water1Below all study benchmarks
VINE GROVE WATER DEPARTMENTKY04704406,703Surface water purchased1Below all study benchmarks
WALTON WATERWORKS DEPARTMENTKY00804424,173Surface water purchased1Below all study benchmarks
WARREN COUNTY WATER DISTRICTKY114048791,118Surface water purchased1Below all study benchmarks
WATER SERVICE CORPORATION OF KENTUCKYKY007028212,022Surface water1Below all study benchmarks
WEBSTER CO WATER DISTRICTKY11709955,940Surface water1Below all study benchmarks
WEST LAUREL WATER ASSOC INCKY063045114,878Surface water purchased1Below all study benchmarks
WESTERN FLEMING WATER DISTRICTKY09106754,262Surface water1Below all study benchmarks
WESTERN LEWIS RECTORVILLE WATER DISTRICTKY08103666,534Surface water purchased3Below all study benchmarks
WESTERN PULASKI CO WATER DISTRICTKY100036323,264Surface water purchased4Below all study benchmarks
WESTERN ROCKCASTLE WATER ASSOCKY102089112,623Surface water purchased1Below all study benchmarks
WHITESBURG WATER WORKSKY06704663,861Surface water1Below all study benchmarks
WHITESVILLE WATER WORKSKY03004673,672Ground water purchased1At or above a study benchmark
WHITLEY CO WATER DISTRICTKY11804689,825Surface water purchased3At or above a study benchmark
WILLIAMSTOWN MUNICIPAL WATER DEPTKY04104725,495Surface water1Below all study benchmarks
WINCHESTER MUNICIPAL UTILITIESKY025047329,823Surface water1Below all study benchmarks
WOOD CREEK WATER DISTRICTKY063047714,892Surface water1Below all study benchmarks
How the count works

What is included

Each active community water system with enough required samples for a yearly average is counted once, even if it is linked with several ZIP codes. This does not mean every home was tested. Private wells are excluded, and UCMR 5 did not comprehensively monitor every small system. This page does not apply Kentucky's state-specific standards or determine compliance. Use the official state or territory drinking-water program for current regulatory information.

Continue exploring

Related links

PFAS Estimator system lookupNational state comparison tableFull methodology and limitationsCurrent EPA UCMR 5 Data FinderOfficial state and territory drinking-water programs