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

Wastewater treatment plants in the United States

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All countries

17,009 inventory records · EPA Clean Watersheds Needs Survey 2022

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

States

17,009 results

CompareNameNative sizeYear
Town Branch WPCPThomaston2 MGD (million gallons per day)2022
Shenandoah WWTF (Coweta County)Newnan2 MGD (million gallons per day)2022
Peachtree City Line Creek (Larry B. Turner) WPCPPeachtree City2 MGD (million gallons per day)2022
Toccoa Eastanolle Creek WPCPToccoa2 MGD (million gallons per day)2022
Waynesboro WWTPWaynesboro2 MGD (million gallons per day)2022
West Point WPCPWest Point2 MGD (million gallons per day)2022
LoganvilleLoganville2 MGD (million gallons per day)2022
MCCALL SEWAGE LAGOONMccall2 MGD (million gallons per day)2022
HAYDEN AREA REGIONAL S/T FACILITYHayden2 MGD (million gallons per day)2022
BRAIDWOOD STPBraidwood2 MGD (million gallons per day)2022
KEWANEE STP & COLLECTION SYSTEMKewanee2 MGD (million gallons per day)2022
ANTIOCH STPAntioch2 MGD (million gallons per day)2022
NORTHERN MORAINE WW RECLAMATION DISIsland Lake2 MGD (million gallons per day)2022
LINDENHURST SANITARY DISTRICTLake Villa2 MGD (million gallons per day)2022
Roselle - J.L. Devlin WWTPRoselle2 MGD (million gallons per day)2022
MT. CARMEL WWTPMount Carmel2 MGD (million gallons per day)2022
ZIONSVILLE WWTPZionsville2 MGD (million gallons per day)2022
DANVILLE WWTPDanville2 MGD (million gallons per day)2022
BARGERSVILLE WWTPBargersville2 MGD (million gallons per day)2022
PRINCES LAKE WWTPEdinburgh2 MGD (million gallons per day)2022
BUTLER WWTPButler2 MGD (million gallons per day)2022
BRAZIL REGIONAL WWTPBrazil2 MGD (million gallons per day)2022
YORKTOWN WWTPYorktown2 MGD (million gallons per day)2022
PERU WWTPPeru2 MGD (million gallons per day)2022
RUSHVILLE WWTPRushville2 MGD (million gallons per day)2022
AUSTIN WWTPAustin2 MGD (million gallons per day)2022
CORYDON STPCorydon2 MGD (million gallons per day)2022
TIPTON WWTPTipton2 MGD (million gallons per day)2022
TAMA WWTPTama2 MGD (million gallons per day)2022
HAYSVILLE WWTPHaysville2 MGD (million gallons per day)2022
SOUTH HUTCHINSON WWTPSouth Hutchinson2 MGD (million gallons per day)2022
WICHITA WWTP #3Wichita2 MGD (million gallons per day)2022
MCPHERSON WWTPMcpherson2 MGD (million gallons per day)2022
WINFIELD WWTPWinfield2 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
DELHI SEWERAGE SYSTEMDelhi2 MGD (million gallons per day)2022
MANDEVILLE STPMandeville2 MGD (million gallons per day)2022
PLAQUEMINE SOUTH STPPlaquemine2 MGD (million gallons per day)2022
MARKSVILLE LAGOON (WWTP)Marksville2 MGD (million gallons per day)2022
VILLE PLATTE STPVille Platte2 MGD (million gallons per day)2022
BAR HARBOR STPBar Harbor2 MGD (million gallons per day)2022
LINCOLN WWTFLincoln2 MGD (million gallons per day)2022
LIVERMORE FALLS WWTFLivermore Falls2 MGD (million gallons per day)2022
OGUNQUIT WWTFOgunquit2 MGD (million gallons per day)2022
Dorsey Run Advanced WWTPJessup2 MGD (million gallons per day)2022
BROADWATER WWTPChurchton2 MGD (million gallons per day)2022
Seneca Point (NERAWWTP)Charlestown2 MGD (million gallons per day)2022
Wareham Sewerage Collection System and WPCFWareham2 MGD (million gallons per day)2022
Northbridge Sewerage Collection System and WWTFNorthbridge2 MGD (million gallons per day)2022
GALIEN RIVER STPNew Buffalo2 MGD (million gallons per day)2022
WEST IRON CO SEWER AUTH STPCaspian2 MGD (million gallons per day)2022
South Woolmarket Harrison County Utility AuthorityBiloxi2 MGD (million gallons per day)2022
HCW&SWMD - D'IBERVILLE POTWDiberville2 MGD (million gallons per day)2022
Desoto County Reg. Utility Auth. - Johnson Creek POTWWalls2 MGD (million gallons per day)2022
Fishing River WWTPKansas City2 MGD (million gallons per day)2022
Nevada WWTPNevada2 MGD (million gallons per day)2022
Brush Creek WWTPKansas City2 MGD (million gallons per day)2022
Pacific WWTPPacific2 MGD (million gallons per day)2022
Maryville WWTPMaryville2 MGD (million gallons per day)2022
Richmond South WWTPRichmond2 MGD (million gallons per day)2022
Clinton WWTPClinton2 MGD (million gallons per day)2022
Boonville WWTPBoonville2 MGD (million gallons per day)2022
LIVINGSTON WWTPLivingston2 MGD (million gallons per day)2022
MILES CITY WWTPMiles City2 MGD (million gallons per day)2022
BEATRICE WWTPBeatrice2 MGD (million gallons per day)2022
Cedar Grove Township - CS/STPCedar Grove2 MGD (million gallons per day)2022
Morris Township - Woodland STP/CSMorristown2 MGD (million gallons per day)2022
Roxbury Township - Ajax Terrace STP/CSSuccasunna2 MGD (million gallons per day)2022
Logan Township MUA - CS/STPSwedesboro2 MGD (million gallons per day)2022
Cinnaminson Township SA - CS/STPBurlington2 MGD (million gallons per day)2022
Sunland Park, City of WWTPSunland Park2 MGD (million gallons per day)2022
Espanola, City ofEspanola2 MGD (million gallons per day)2022
Grants, City ofGrants2 MGD (million gallons per day)2022
North Hempstead (T) Belgrave WWTPGreat Neck2 MGD (million gallons per day)2022
Goshen (V) Sewers & STPGoshen2 MGD (million gallons per day)2022
Liberty (V) STPLiberty2 MGD (million gallons per day)2022
Thompson, (T) Kiamesha SD & WWTPMonticello2 MGD (million gallons per day)2022
Niskayuna (T) SD No. 6 STPSchenectady2 MGD (million gallons per day)2022
St. Johnsville (V) STPSaint Johnsville2 MGD (million gallons per day)2022
Rouses Point (V) STPRouses Point2 MGD (million gallons per day)2022
Lowville (V) STPLowville2 MGD (million gallons per day)2022
Sylvan Beach (V) E. Oneida Lake SD WWTPSylvan Beach2 MGD (million gallons per day)2022
Canastota (V) STPCanastota2 MGD (million gallons per day)2022
Owego (T) SD No. 2 WWTPApalachin2 MGD (million gallons per day)2022
Cayuga Heights (V) STPIthaca2 MGD (million gallons per day)2022
Salamanca (C) WWTPSalamanca2 MGD (million gallons per day)2022
GUNPOWDER CREEK WWTPHudson2 MGD (million gallons per day)2022
CHERRYVILLE WWTPCherryville2 MGD (million gallons per day)2022
SPRUCE PINE WWTPSpruce Pine2 MGD (million gallons per day)2022
WARRENTON WWTPWarrenton2 MGD (million gallons per day)2022
N. WILKESBORO THURMAN STREET WWTPNorth Wilkesboro2 MGD (million gallons per day)2022
Allen Co Shawnee #2 WWTPShawnee2 MGD (million gallons per day)2022
Geneva WWTP & Sewer SystemGeneva2 MGD (million gallons per day)2022
Clark Co Southwest Regional WWTPMedway2 MGD (million gallons per day)2022
Clermont Co Wards Corners WWTPMiamiville2 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.