Kentucky tap water quality

372 active community water systems.

Largest water systems

GradeSystemPeopleHealth violations (5y)
ALouisville Water Company806,9970
AKentucky American Water (Lexington)669,0420
ANorthern Kentucky Water District259,9490
AWarren County Water District91,1180
AHardin County Water District #276,3260
ABoone Co Water & Sewer District66,3000
BPaducah Water Works65,0040
AOwensboro Municipal Utilities60,4730
ABowling Green Municipal Utilities53,6010
AFrankfort Plant Board52,1530
BGeorgetown Municipal Water Service44,6080
AAshland Water Works44,4020
DMountain Water Dist44,05711
AHopkinsville Water Environment Authority41,3500
AOldham County Water District38,4090
AGlasgow Water Company36,7660
BRichmond Utilities35,6401
ANicholasville Water Department35,2660
AMcCreary County Water District34,4390
BDaviess Co Water District33,6550
BMeade County Water District33,3131
ADanville City Water Works32,6000
AHenderson Water Utility/North31,7050
AFranklin Water Works31,6020
ABardstown Municipal Water Dept31,1850
AHardin County Water District #130,2300
AWinchester Municipal Utilities29,8230
ASomerset Water Service29,7000
AFlorence Water & Sewer29,3510
AMadisonville Light & Water28,1020
APrestonsburg City Utilities26,7880
AHazard Water Department26,7300
AMurray Water System26,3020
AMadison Co Utilities District25,1200
ACampbellsville Municipal Water24,8740
APaintsville Municipal Water Works24,3540
AMt Washington Water Company23,7600
AShelbyville Water & Sewer Commission23,7600
AHardin Co. Water Dist #1/Ft. Knox23,6000
AWestern Pulaski Co Water District23,2640
ATaylorsville Water Works22,2860
BColumbia/Adair Utilities District22,1131
AFort Campbell22,0000
ASoutheastern Water Assoc/Nelson Valley21,8950
AMonticello Water & Sewer Commission21,0000
ABullock Pen Water District20,0480
AGrayson County Water District20,0330
BRowan Water Inc18,7651
AHardinsburg Ro WTP18,4370
DEdmonson Co Water District17,84813

Most issues (systems serving 10,000+)

D

Southern Water & Sewer District

Serves 15,110 people · Surface water · Full report →
5 health-based violations in the last 5 years; 3 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
D

Edmonson Co Water District

Serves 17,848 people · Surface water · Full report →
13 health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
D

Mountain Water Dist

Serves 44,057 people · Surface water · Full report →
11 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
D

Big Sandy Water District

Serves 13,044 people · Surface water · Full report →
4 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C

Harrison Co Water Association

Serves 16,736 people · Surface water · Full report →
2 health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Lead 90th percentile below the action level (2021).
C

East Casey Co Water District

Serves 12,460 people · Surface water · Full report →
2 health-based violations in the last 5 years; 3 monitoring/reporting violations; 2 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
C

Versailles Water System

Serves 17,822 people · Surface water · Full report →
2 health-based violations in the last 5 years; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
C

Muhlenberg Co Water District

Serves 16,845 people · Surface water · Full report →
2 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
C

Mt Sterling Water Works

Serves 16,391 people · Surface water · Full report →
2 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C

Bath County Water District

Serves 10,083 people · Surface water · Full report →
2 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B

Paducah Water Works

Serves 65,004 people · Surface water · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Lead 90th percentile below the action level (2024).
B

Georgetown Municipal Water Service

Serves 44,608 people · Surface water · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Lead 90th percentile below the action level (2024).
B

Daviess Co Water District

Serves 33,655 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2024).
B

Corbin Utilities Commission

Serves 16,065 people · Surface water · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2024).
B

Meade County Water District

Serves 33,313 people · Surface water · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B

Paris Water Works

Serves 14,139 people · Surface water · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
B

Rattlesnake Ridge Water District

Serves 11,397 people · Surface water · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B

Richmond Utilities

Serves 35,640 people · Surface water · Full report →
1 health-based violation in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B

Columbia/Adair Utilities District

Serves 22,113 people · Surface water · Full report →
1 health-based violation in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
B

Rowan Water Inc

Serves 18,765 people · Surface water · Full report →
1 health-based violation in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).

Cities

AberdeenAdairvilleAdamsAdolphusAges BrooksideAlbanyAlexandriaAllenAllensvilleAlmoAlvatonAnnvilleArgilliteArlingtonArtemusAryAshcampAshlandAuburnAugustaAustinAuxierAvawamBagdadBandanaBannerBarbourvilleBardstownBardwellBarlowBattletownBaxterBear BranchBeattyvilleBeaumontBeautyBeaverBeaver DamBedfordBeech CreekBeech GroveBeechmontBelcherBelfryBellevueBeltonBenhamBentonBereaBerryBethelridgeBethlehemBetsy LayneBevinsvilleBig CliftyBimbleBlaineBledsoeBloomfieldBlue RiverBoazBonnievilleBonnymanBoonevilleBoons CampBostonBowling GreenBradfordsvilleBrandenburgBremenBrodheadBronstonBrooksBrooksvilleBrowderBrownsvilleBryants StoreBryantsvilleBuckhornBucknerBuffaloBulanBurginBurkesvilleBurlingtonBurnaBurnsideBusyButlerByproCadizCalhounCaliforniaCalvert CityCampbellsburgCampbellsvilleCamptonCanadaCaneyvilleCanmerCannel CityCarlisleCarrieCarrolltonCatlettsburgCave CityCawoodCeciliaCenterCentertownCentral CityCeruleanChaplinChaviesClarksonClayClay CityClayholeClearfieldCleatonClermontClintonClosplintCloverportCoalgoodColdironColumbiaColumbusCombsCorbinCorinthCornettsvilleCorydonCovingtonCoxs CreekCrab OrchardCranksCrestwoodCrittendenCrockettCroftonCromonaCromwellCumberlandCunninghamCusterCynthianaDanaDanvilleDavidDawson SpringsDaytonDe MossvilleDebordDelphiaDemaDennistonDentonDewittDexterDiceDixonDortonDoverDrakesboroDriftDry RidgeDunbarDundeeDunmorDunnvilleDwaleDwarfEarlingtonEast BernstadtEast PointEasternEastviewEddyvilleEdmontonEighty EightEkronElizabethtownElkforkElkhorn CityElktonEminenceEmmalenaErlangerErmineEssieEtoileEubankEvartsEwingEzelFairdaleFairfieldFairviewFalconFall RockFalls Of RoughFalmouthFancy FarmFarmersFarmingtonFedscreekFinchvilleFishervilleFistyFlat LickFlatgapFlatwoodsFlemingsburgFlorenceFords BranchFordsvilleForest HillsFort KnoxFort ThomasFosterFountain RunFrakesFrankfortFranklinFredoniaFreeburnFrenchburgFt MitchellFultonGamalielGarfieldGarnerGarrardGarrettGarrisonGays CreekGeorgetownGermantownGhentGilbertsvilleGirdlerGlasgowGlencoeGlenviewGordonGoshenGraceyGrahamGrahnGrand RiversGravel SwitchGrayGray HawkGrays KnobGraysonGreensburgGreenupGreenvilleGrethelGulstonGustonGuthrieHagerhillHamptonHansonHappyHardinHardinsburgHardyHardyvilleHarlanHarnedHaroldHarrodsburgHartfordHawesvilleHazardHazelHazel GreenHebronHeidrickHellierHeltonHendersonHerndonHestandHi HatHickmanHickoryHillsboroHindmanHisevilleHitchinsHodgenvilleHollandHopeHopkinsvilleHorse BranchHorse CaveHuddyHudsonHueysvilleHulenHustonvilleHydenIndependenceInezIrvineIrvingtonIslandIsomIsonvilleIvelJackhornJacksonJamestownJeffJeffersonvilleJeremiahJetsonJonancyJonesvilleJunction CityKeatonKeavyKeeneKevilKimperKings MountainKirkseyKiteKnob LickKryptonKuttawaLa CenterLa FayetteLa GrangeLackeyLancasterLangleyLatoniaLawrenceburgLebanonLebanon JunctionLeburnLedbetterLeitchfieldLetcherLewisburgLewisportLexingtonLibertyLick CreekLilyLittcarrLivermoreLivingstonLockportLondonLookoutLorettoLost CreekLouisaLouisvilleLovelyLowesLowmansvilleLoyallLucasLynchLynnvilleMaceoMackvilleMadisonvilleMagnoliaMallieMaloneMammoth CaveManchesterManitouMannsvilleMaple MountMarionMarshes SidingMarthaMartinMasonic HomeMayfieldMaykingMayslickMaysvilleMc AndrewsMc CarrMc DanielsMc DowellMc HenryMc KeeMc KinneyMc RobertsMeallyMeansMelberMelbourneMelvinMiddleburgMiddlesboroMidwayMillersburgMillwoodMiltonMinervaMinnieMitchellsburgMizeMonticelloMoreheadMorganfieldMorgantownMorning ViewMortons GapMount EdenMount OlivetMount ShermanMount SterlingMount VernonMount WashingtonMousieMouthcardMozelleMuldraughMunfordvilleMurrayNancyNazarethNeboNeonNerinxNew CastleNew ConcordNew HavenNew HopeNew LibertyNewportNicholasvilleNortonvilleOak GroveOaklandOil SpringsOlatonOlive HillOlmsteadOlympiaOwensboroOwentonOwingsvillePaducahPaint LickPaintsvilleParisPark CityParkers LakeParksvillePathforkPaynevillePendletonPerry ParkPerryvillePetersburgPewee ValleyPhelpsPhilpotPhyllisPikevillePilgrimPine KnotPine RidgePine TopPinevillePinsonforkPippa PassesPleasurevillePort RoyalPowderlyPremiumPrestonsburgPrincetonPrinterProspectProvidenceQuincyRaccoonRadcliffRansomRavenRavennaRaywickRedfoxReedReginaReveloReynolds StationRhodeliaRichmondRineyvilleRiverRobardsRobinson CreekRochesterRockfieldRockholdsRockhouseRockportRocky HillRogersRosineRoundhillRowdyRoyaltonRumseyRushRussellRussell SpringsRussellvilleSacramentoSadievilleSaint CharlesSaint FrancisSaint MarySalemSalt LickSalvisaSalyersvilleSandersSandgapSandy HookSassafrasScalfScience HillScottsvilleScuddySebreeSecoSedaliaSextons CreekSharpsburgShelbianaShelby GapShelbyvilleShepherdsvilleSidneySilerSilver GroveSimpsonvilleSitkaSlaughtersSlempSmith MillsSmithfieldSmithlandSmiths GroveSomersetSonoraSouth CarrolltonSouth ShoreSouth WilliamsonSpartaSpottsvilleSpringfieldStaffordsvilleStambaughStamping GroundStanfordStantonStanvilleStearnsSteeleStephensportStinnettStoneStopoverStrunkSturgisSullivanSulphurSummer ShadeSummersvilleSymsoniaTaylorsvilleTeaberryThelmaThorntonTilineTollesboroTomahawkTompkinsvilleTopmostTramTrentonTrosperTurners StationTutor KeyTynerUlyssesUnionUnion StarUniontownUptonUticaVan LearVanceburgVancleveVarneyVeronaVersaillesVestViccoVine GroveViperVirgieWacoWaddyWalkerWallingfordWallins CreekWaltonWarfieldWarsawWater ValleyWaverlyWaylandWaynesburgWebbvilleWebsterWeeksburyWellingtonWest LibertyWest PaducahWest PointWest Van LearWestportWestviewWheatcroftWheelwrightWhickWhite MillsWhite PlainsWhitesburgWhitesvilleWhitley CityWickliffeWillardWilliamsburgWilliamstownWillisburgWilmoreWinchesterWindsorWingoWittensvilleWoodbineWoodburnWoodburyWorthingtonWorthvilleYerkesYosemite