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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in United States · Kentucky

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251 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

251 results

CompareNameNative sizeYear
MSD - MORRIS FORMAN STPLouisville120 MGD (million gallons per day)2022
N KY SD1 - DRY CREEK STPErlanger46.5 MGD (million gallons per day)2022
LFUCG W HICKMAN STPNicholasville33.87 MGD (million gallons per day)2022
LFUCG TOWN BRANCH STPLexington30 MGD (million gallons per day)2022
MSD - DEREK R GUTHRIE WWTPLouisville30 MGD (million gallons per day)2022
N KY SD1 - Western Regional STPPetersburg20 MGD (million gallons per day)2022
RWRA OWENSBORO WEST WWTPOwensboro15 MGD (million gallons per day)2022
HENDERSON STP #1 - NORTHHenderson15 MGD (million gallons per day)2022
ELIZABETHTOWNElizabethtown13 MGD (million gallons per day)2022
BOWLING GREEN MUNICIPAL UTILITIESBowling Green12 MGD (million gallons per day)2022
ASHLANDAshland11 MGD (million gallons per day)2022
FRANKFORT STP & CSFrankfort10.4 MGD (million gallons per day)2022
Paducah McCracken Co JSA - PaducahPaducah9 MGD (million gallons per day)2022
Richmond - Otter Creek WWTPRichmond8 MGD (million gallons per day)2022
IRVINE STPIrvine8 MGD (million gallons per day)2022
MSD - CEDAR CREEK STPLouisville7.5 MGD (million gallons per day)2022
WINCHESTER STRODES CK WWTPWinchester7.2 MGD (million gallons per day)2022
RWRA OWENSBORO EASTOwensboro6.8 MGD (million gallons per day)2022
MSD - FLOYDS FORK STPLouisville6.5 MGD (million gallons per day)2022
DANVILLE STP & CSDanville6.5 MGD (million gallons per day)2022
MSD - HITE CREEK STPLouisville6 MGD (million gallons per day)2022
GLASGOWGlasgow6 MGD (million gallons per day)2022
HWEA - Hammond Wood STPHopkinsville6 MGD (million gallons per day)2022
MADISONVILLE STP& CSMadisonville6 MGD (million gallons per day)2022
Hardin Co Water Dist. #1-Fort KnoxFort Knox6 MGD (million gallons per day)2022
MURRAY STPMurray5.25 MGD (million gallons per day)2022
SHEPHERDSVILLE WWTPShepherdsville5.034 MGD (million gallons per day)2022
LONDONLondon5 MGD (million gallons per day)2022
MOREHEAD STPMorehead5 MGD (million gallons per day)2022
VERSAILLES STPVersailles4.5 MGD (million gallons per day)2022
CORBIN STPCorbin4.5 MGD (million gallons per day)2022
GEORGETOWN STP #1Georgetown4.5 MGD (million gallons per day)2022
SOMERSETSomerset4.4 MGD (million gallons per day)2022
BEREABerea4.3 MGD (million gallons per day)2022
CAMPBELLSVILLE STPCampbellsville4.2 MGD (million gallons per day)2022
JESSAMINE CREEK ENV CONTROL WWTPNicholasville4.1 MGD (million gallons per day)2022
HENDERSON STP#2 & CSRobards4 MGD (million gallons per day)2022
N KY SD1 - EASTERN REGIONAL STPAlexandria4 MGD (million gallons per day)2022
PIKEVILLEPikeville4 MGD (million gallons per day)2022
BARDSTOWN--JERRY L RILEY STPBardstown4 MGD (million gallons per day)2022
Hardin Co Water District 1-RadcliffRadcliff4 MGD (million gallons per day)2022
MIDDLESBORO STPMiddlesboro3.6 MGD (million gallons per day)2022
RUSSELL CO REGIONAL STPJamestown3.6 MGD (million gallons per day)2022
HARRODSBURG STPHarrodsburg3.5 MGD (million gallons per day)2022
MORGANFIELDMorganfield3.5 MGD (million gallons per day)2022
MT WASHINGTONMount Washington3.5 MGD (million gallons per day)2022
MAYSVILLE STPMaysville3.4 MGD (million gallons per day)2022
LAWRENCEBURG WWTPLawrenceburg3.3 MGD (million gallons per day)2022
SHELBYVILLE STPShelbyville3.2 MGD (million gallons per day)2022
FRANKLIN STPFranklin3.2 MGD (million gallons per day)2022
MAYFIELD STPMayfield3.1 MGD (million gallons per day)2022
HAZARDHazard3 MGD (million gallons per day)2022
BARDSTOWN WWTPBardstown3 MGD (million gallons per day)2022
MOUNT STERLING Hinkston Creek WWTPMount Sterling3 MGD (million gallons per day)2022
LEBANON STPLebanon3 MGD (million gallons per day)2022
PARIS STP & CSParis2.7 MGD (million gallons per day)2022
RUSSELLVILLERussellville2.4 MGD (million gallons per day)2022
Greenup Co Environ CommRussell2.232 MGD (million gallons per day)2022
GEORGETOWN STP #2Georgetown2.2 MGD (million gallons per day)2022
Winchester Lower Howards Creek WWTPWinchester2 MGD (million gallons per day)2022
WILLIAMSTOWN STPWilliamstown2 MGD (million gallons per day)2022
LEITCHFIELD STPLeitchfield2 MGD (million gallons per day)2022
WILLIAMSBURG STPWilliamsburg2 MGD (million gallons per day)2022
Ohio County Water/Sewer Dist WWTPBeaver Dam2 MGD (million gallons per day)2022
CYNTHIANA STPCynthiana2 MGD (million gallons per day)2022
LAGRANGE STPLa Grange1.9 MGD (million gallons per day)2022
SCOTTSVILLEScottsville1.72 MGD (million gallons per day)2022
Carrollton Regional WWTPCarrollton1.7 MGD (million gallons per day)2022
MANCHESTERManchester1.6 MGD (million gallons per day)2022
PRINCETON STPPrinceton1.57 MGD (million gallons per day)2022
BARBOURVILLE WWTPBarbourville1.5 MGD (million gallons per day)2022
MARION STPMarion1.5 MGD (million gallons per day)2022
OCEA - Ohio River WWTPGoshen1.5 MGD (million gallons per day)2022
Red River Wastewater Authority STPStanton1.411 MGD (million gallons per day)2022
MONTICELLO STPMonticello1.4 MGD (million gallons per day)2022
GREENVILLE STPGreenville1.31 MGD (million gallons per day)2022
MSD - OCEA South Oldham Regional WWTPCrestwood1.25 MGD (million gallons per day)2022
COLUMBIA STPColumbia1.2 MGD (million gallons per day)2022
STANFORDStanford1.2 MGD (million gallons per day)2022
CENTRAL CITY STPCentral City1.2 MGD (million gallons per day)2022
HARLAN STPLoyall1.2 MGD (million gallons per day)2022
FLEMINGSBURG STPFlemingsburg1.13 MGD (million gallons per day)2022
Greenup Joint Sewer AgencyGreenup1.1 MGD (million gallons per day)2022
WILMORE WWTPWilmore1 MGD (million gallons per day)2022
Paducah McCracken Co JSA - ReidlandPaducah1 MGD (million gallons per day)2022
BENTON STP & CSBenton1 MGD (million gallons per day)2022
EDDYVILLE STPEddyville1 MGD (million gallons per day)2022
LANCASTER STPLancaster1 MGD (million gallons per day)2022
Paintsville Honey Branch WWTPVan Lear1 MGD (million gallons per day)2022
MSD-OCEA - KSR WWTPLa Grange1 MGD (million gallons per day)2022
North Madison Co SD - Regional WWTPRichmond1 MGD (million gallons per day)2022
PAINTSVILLE STPPaintsville0.99 MGD (million gallons per day)2022
GRAYSON STPGrayson0.966 MGD (million gallons per day)2022
FULTON STPFulton0.94 MGD (million gallons per day)2022
Paducah McCracken Co JSA -WoodlawnPaducah0.91 MGD (million gallons per day)2022
MCCREARY CO WDStearns0.9 MGD (million gallons per day)2022
SPRINGFIELD STPSpringfield0.88 MGD (million gallons per day)2022
WALTONWalton0.85 MGD (million gallons per day)2022
WEST LIBERTYWest Liberty0.85 MGD (million gallons per day)2022
CALVERT CITY STPCalvert City0.8 MGD (million gallons per day)2022

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

  • Permit identifier and permitting authority: EPA or an authorized state.
  • Outfall and receiving water; sewer connections follow a different control route.
  • Current permit conditions, limits and dated measurements; these are not included in CWNS.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.