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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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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
Geauga Co McFarland Creek WWTPBainbridge1.8 MGD (million gallons per day)2022
South Point WWTP & Sewer SystemSouth Point1.8 MGD (million gallons per day)2022
Strongsville C WWTP & SewersStrongsville1.8 MGD (million gallons per day)2022
Waverly WWTP & Sewer SystemWaverly1.8 MGD (million gallons per day)2022
FORT GIBSON UA WWTFort Gibson1.8 MGD (million gallons per day)2022
Clemson University wastewaterClemson1.8 MGD (million gallons per day)2022
SELMER WWTPSelmer1.8 MGD (million gallons per day)2022
Donna WWTPDonna1.8 MGD (million gallons per day)2022
Levelland WWTPLevelland1.8 MGD (million gallons per day)2022
Navasota WWTPNavasota1.8 MGD (million gallons per day)2022
Jasper WWTPJasper1.8 MGD (million gallons per day)2022
Hondo WWTPHondo1.8 MGD (million gallons per day)2022
PROSSER WWTPProsser1.8 MGD (million gallons per day)2022
BERK CO PSSD - BAKER HEIGHTS WWTPMartinsburg1.8 MGD (million gallons per day)2022
COMA PSD - FITZPATRICK WWTPCrab Orchard1.8 MGD (million gallons per day)2022
OREGON STPOregon1.8 MGD (million gallons per day)2022
PLOVER WWTPPlover1.8 MGD (million gallons per day)2022
RIPON WWTPRipon1.8 MGD (million gallons per day)2022
RIVER FALLS WWTPRiver Falls1.8 MGD (million gallons per day)2022
WAUPUN WWTPWaupun1.8 MGD (million gallons per day)2022
BUFFALO WWTPBuffalo1.8 MGD (million gallons per day)2022
SHELLEY S/T FACILITYShelley1.79 MGD (million gallons per day)2022
Ayer Sewerage Collection System and WWTFAyer1.79 MGD (million gallons per day)2022
RICE LAKE STPRice Lake1.79 MGD (million gallons per day)2022
Trumann WWTPTrumann1.78 MGD (million gallons per day)2022
VINTON WWTPVinton1.78 MGD (million gallons per day)2022
IOLA WWTPIola1.78 MGD (million gallons per day)2022
QUONSET POINT WWTFNorth Kingstown1.78 MGD (million gallons per day)2022
HARLAN WWTPHarlan1.777 MGD (million gallons per day)2022
MOSHANNON VALLEY STPPhilipsburg1.77 MGD (million gallons per day)2022
CENTER STPCenter1.77 MGD (million gallons per day)2022
SODA SPRINGS WW TREAT FACSoda Springs1.76 MGD (million gallons per day)2022
WESTERN WAYNE RSDCambridge City1.76 MGD (million gallons per day)2022
SEDRO WOOLLEY TREATMENTSedro Woolley1.759 MGD (million gallons per day)2022
Calera Northside WWTP - Camp BranchCalera1.75 MGD (million gallons per day)2022
Heber Springs WWTPHeber Springs1.75 MGD (million gallons per day)2022
Alma WWTPAlma1.75 MGD (million gallons per day)2022
Corcoran WWTFCorcoran1.75 MGD (million gallons per day)2022
Upper Monument Creek Regional WWTPColorado Springs1.75 MGD (million gallons per day)2022
PLYMOUTH WPCFPequabuck1.75 MGD (million gallons per day)2022
MADISON WWTPMadison1.75 MGD (million gallons per day)2022
Bear Creek WPCPHampton1.75 MGD (million gallons per day)2022
Hartwell WPCPHartwell1.75 MGD (million gallons per day)2022
Sandersville WPCPSandersville1.75 MGD (million gallons per day)2022
STOOKEY TWP PLT #3Belleville1.75 MGD (million gallons per day)2022
WOODSTOCK-SOUTH STPWoodstock1.75 MGD (million gallons per day)2022
BEARDSTOWN STPBeardstown1.75 MGD (million gallons per day)2022
WINTERSET WWTPWinterset1.75 MGD (million gallons per day)2022
Covington CityCovington1.75 MGD (million gallons per day)2022
NEW BALTIMORE W W T PNew Baltimore1.75 MGD (million gallons per day)2022
Portales, City ofPortales1.75 MGD (million gallons per day)2022
Hoosick Falls (V) STPHoosick Falls1.75 MGD (million gallons per day)2022
Lake George (V) STPLake George1.75 MGD (million gallons per day)2022
Dansville (V) WWTPDansville1.75 MGD (million gallons per day)2022
Erwin (T) STP and SewersPainted Post1.75 MGD (million gallons per day)2022
FAIRMONT REG. WWTPFairmont1.75 MGD (million gallons per day)2022
Marion Co Sewer District #7 Water Reclamation PlantMarion1.75 MGD (million gallons per day)2022
Heath WWTP & Sewer SystemHeath1.75 MGD (million gallons per day)2022
Littlefield WWTPLittlefield1.75 MGD (million gallons per day)2022
Gilmer WWTPGilmer1.75 MGD (million gallons per day)2022
North Park WWTPHouston1.75 MGD (million gallons per day)2022
Harvest Bend WWTPHouston1.75 MGD (million gallons per day)2022
CHARLES TOWN WWTPCharles Town1.75 MGD (million gallons per day)2022
RANDLEMAN WWTPRandleman1.745 MGD (million gallons per day)2022
DICKINSON WASTEWATERDickinson1.74 MGD (million gallons per day)2022
WARM SPRINGS PSD - BERK SPRNGS TPBerkeley Springs1.74 MGD (million gallons per day)2022
CALIPATRIA WWTFCalipatria1.73 MGD (million gallons per day)2022
Kilgore WWTPKilgore1.725 MGD (million gallons per day)2022
SCOTTSVILLEScottsville1.72 MGD (million gallons per day)2022
WELLINGTON WWTPWellington1.71 MGD (million gallons per day)2022
Caribou Utility DistrictCaribou1.71 MGD (million gallons per day)2022
Helena/West Helena - Helena WWTPHelena1.7 MGD (million gallons per day)2022
Gridley Wastewater Treatment PlantGridley1.7 MGD (million gallons per day)2022
Marysville WWTFMarysville1.7 MGD (million gallons per day)2022
NEW CANAAN WPCFNew Canaan1.7 MGD (million gallons per day)2022
Water Farm I STPNew Castle1.7 MGD (million gallons per day)2022
WINTER HAVEN WWTP #2Winter Haven1.7 MGD (million gallons per day)2022
Van Dyke WWTPOdessa1.7 MGD (million gallons per day)2022
Moscow Sewage Treatment PlantMoscow1.7 MGD (million gallons per day)2022
CREST HILL STW-EASTCrest Hill1.7 MGD (million gallons per day)2022
MILAN SEW TREATMENT PLANTMilan1.7 MGD (million gallons per day)2022
CRYSTAL LAKE STP #3Crystal Lake1.7 MGD (million gallons per day)2022
ANGOLA WWTPAngola1.7 MGD (million gallons per day)2022
Carrollton Regional WWTPCarrollton1.7 MGD (million gallons per day)2022
ST CHARLES WEST BK STPHahnville1.7 MGD (million gallons per day)2022
OLD TOWN WWTFOld Town1.7 MGD (million gallons per day)2022
Aberdeen Area Wastewater Treatment PlantAberdeen Proving Ground1.7 MGD (million gallons per day)2022
WINNEBAGO WWTPWinnebago1.7 MGD (million gallons per day)2022
California South WWTFCalifornia1.7 MGD (million gallons per day)2022
Sidney (V) WWTPSidney1.7 MGD (million gallons per day)2022
Ticonderoga (T) STPTiconderoga1.7 MGD (million gallons per day)2022
Herkimer (V) WWTPHerkimer1.7 MGD (million gallons per day)2022
Ironton WWTP & Sewer SystemIronton1.7 MGD (million gallons per day)2022
Ottawa WWTP & Sewer SystemOttawa1.7 MGD (million gallons per day)2022
Twin City WWTP & SewersUhrichsville1.7 MGD (million gallons per day)2022
CLINTON PWA WWTClinton1.7 MGD (million gallons per day)2022
DILLSBURG BOROUGH STPDillsburg1.7 MGD (million gallons per day)2022
NORTHEASTERN YORK MT WOLF STPMount Wolf1.7 MGD (million gallons per day)2022
El Campo WWTPEl Campo1.7 MGD (million gallons per day)2022
New Boston WWTPNew Boston1.7 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.