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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
Ozark WWTPOzark2.1 MGD (million gallons per day)2022
Bedminster Township - CS/STPBedminster2.1 MGD (million gallons per day)2022
TRYON WWTPTryon2.1 MGD (million gallons per day)2022
Hubbard WWTP & Sewer SystemHubbard2.1 MGD (million gallons per day)2022
Strongsville B WWTP & SewersStrongsville2.1 MGD (million gallons per day)2022
Sweetwater WWTPSweetwater2.1 MGD (million gallons per day)2022
Graham WWTPGraham2.1 MGD (million gallons per day)2022
ARCADIA WWTPArcadia2.1 MGD (million gallons per day)2022
ELKINS WWTPElkins2.096 MGD (million gallons per day)2022
MECHANICSBURG STPMechanicsburg2.09 MGD (million gallons per day)2022
WATERLOO, CITY OFWaterloo2.086 MGD (million gallons per day)2022
LEESVILLE STPLeesville2.08 MGD (million gallons per day)2022
ROMEO VILLAGE STPRomeo2.08 MGD (million gallons per day)2022
Winter Springs West STPWinter Springs2.07 MGD (million gallons per day)2022
TELL CITY WWTPTell City2.06 MGD (million gallons per day)2022
Salem Lakes, Village ofSalem2.06 MGD (million gallons per day)2022
METROPOLIS STPMetropolis2.05 MGD (million gallons per day)2022
Park Hills Mineral Belt WWTPBonne Terre2.05 MGD (million gallons per day)2022
SAXONBURG AREA STPRenfrew2.05 MGD (million gallons per day)2022
Town Creek WWTPPalestine2.05 MGD (million gallons per day)2022
PLATTEVILLE WWTPPlatteville2.05 MGD (million gallons per day)2022
BOLINGBROOK STP#1Bolingbrook2.04 MGD (million gallons per day)2022
COTTAGE GROVE STPCottage Grove2.04 MGD (million gallons per day)2022
Clinton Town - CS/STPClinton2.03 MGD (million gallons per day)2022
CHIPPEWA TWP STPBeaver Falls2.03 MGD (million gallons per day)2022
BROWNSVILLE STPBrownsville2.03 MGD (million gallons per day)2022
LISBON W P C PLANTLisbon2.025 MGD (million gallons per day)2022
SUFFIELD WPCFSuffield2.02 MGD (million gallons per day)2022
DETROIT LAKES WWTPDetroit Lakes2.02 MGD (million gallons per day)2022
Alice - Northeast WWTPAlice2.02 MGD (million gallons per day)2022
East WWTP - AliceEdroy2.02 MGD (million gallons per day)2022
ARLINGTON TREATMENTArlington2.02 MGD (million gallons per day)2022
WINTER SPRINGS EAST STPWinter Springs2.012 MGD (million gallons per day)2022
Jasper WPCPJasper2.012 MGD (million gallons per day)2022
Garden City WPCPGarden City2.01 MGD (million gallons per day)2022
SHENANDOAH SEWAGE TFShenandoah2.01 MGD (million gallons per day)2022
DUQUESNE STPDuquesne2.01 MGD (million gallons per day)2022
WARREN WWTFWarren2.01 MGD (million gallons per day)2022
HARRY STILL SR. WWTPBay Minette2 MGD (million gallons per day)2022
Foley-Riviera Utilities WWTPFoley2 MGD (million gallons per day)2022
Greensboro LagoonGreensboro2 MGD (million gallons per day)2022
GREENVILLE WWTPGreenville2 MGD (million gallons per day)2022
GUNTERSVILLE WWTPGuntersville2 MGD (million gallons per day)2022
LINCOLN SOUTH WWTPLincoln2 MGD (million gallons per day)2022
Pell City Dry Creek WWTPPell City2 MGD (million gallons per day)2022
DALLAS COUNTY W&S WWTPSelma2 MGD (million gallons per day)2022
Jefferson County-Leeds WWTPLeeds2 MGD (million gallons per day)2022
Page WWTFPage2 MGD (million gallons per day)2022
Safford WWTFSafford2 MGD (million gallons per day)2022
Bullhead City Section 18 WWTFBullhead City2 MGD (million gallons per day)2022
Pinetop-Lakeside SD WWTFPinetop2 MGD (million gallons per day)2022
Coolidge WWTFCoolidge2 MGD (million gallons per day)2022
Eloy WWTFEloy2 MGD (million gallons per day)2022
Warren WWTPWarren2 MGD (million gallons per day)2022
Van Buren - North WWTPVan Buren2 MGD (million gallons per day)2022
Huntsville WWTPHuntsville2 MGD (million gallons per day)2022
Clarksville WWTPClarksville2 MGD (million gallons per day)2022
Treasure Island WWTFSan Francisco2 MGD (million gallons per day)2022
Carpinteria WWTFCarpinteria2 MGD (million gallons per day)2022
Anderson WWTFAnderson2 MGD (million gallons per day)2022
LAKE CO NW REG WWTPLakeport2 MGD (million gallons per day)2022
Parlier WWTFParlier2 MGD (million gallons per day)2022
Cutler-Orosi WWTFCutler2 MGD (million gallons per day)2022
Lamont WWTFLamont2 MGD (million gallons per day)2022
LIVINGSTON DOMESTIC STPLivingston2 MGD (million gallons per day)2022
SUSANVILLE REG WWTFSusanville2 MGD (million gallons per day)2022
Padre Dam WRFSantee2 MGD (million gallons per day)2022
Berthoud, Town ofBerthoud2 MGD (million gallons per day)2022
Trinidad, City ofTrinidad2 MGD (million gallons per day)2022
Frisco Sanitation DistrictFrisco2 MGD (million gallons per day)2022
BLACK HAWK / CENTRAL CITY WWTBlack Hawk2 MGD (million gallons per day)2022
LOCHBUIE LAGOONBrighton2 MGD (million gallons per day)2022
Rifle, City of Regional WWTFRifle2 MGD (million gallons per day)2022
THREE LAKES WSDGrand Lake2 MGD (million gallons per day)2022
Granby Sanitation DistrictGranby2 MGD (million gallons per day)2022
Castle Rock, Town ofCastle Rock2 MGD (million gallons per day)2022
NEW MILFORD WPCFNew Milford2 MGD (million gallons per day)2022
STAFFORD WPCFStafford Springs2 MGD (million gallons per day)2022
SEAFORD STPSeaford2 MGD (million gallons per day)2022
TWA - Lake MarionKissimmee2 MGD (million gallons per day)2022
Nassau Regional WRFYulee2 MGD (million gallons per day)2022
Gulf Breeze Regional Water System WRFGulf Breeze2 MGD (million gallons per day)2022
Rotonda WWTPPlacida2 MGD (million gallons per day)2022
ARCADIA STPArcadia2 MGD (million gallons per day)2022
IRCUD/South Regional WWTFVero Beach2 MGD (million gallons per day)2022
Palm Coast WWTF #2Palm Coast2 MGD (million gallons per day)2022
Meadowcrest WWTFLecanto2 MGD (million gallons per day)2022
City of Hinesville (JV Road WRF)Hinesville2 MGD (million gallons per day)2022
West Point WPCPWest Point2 MGD (million gallons per day)2022
Rabun County WRFRabun Gap2 MGD (million gallons per day)2022
Spring Creek WRFMontezuma2 MGD (million gallons per day)2022
Walnut Creek WPCP (McDonough)Mcdonough2 MGD (million gallons per day)2022
Buford Southside WPCPBuford2 MGD (million gallons per day)2022
Port Wentworth WPCPPort Wentworth2 MGD (million gallons per day)2022
Blakely WPCPBlakely2 MGD (million gallons per day)2022
Glennville WWTPGlennville2 MGD (million gallons per day)2022
Summerville WPCPSummerville2 MGD (million gallons per day)2022
Potato Creek WPCFGriffin2 MGD (million gallons per day)2022
Rome Coosa WPCPRome2 MGD (million gallons per day)2022
Bell Creek WPCPThomaston2 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.