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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
Monticello (V) WWTPMonticello3.1 MGD (million gallons per day)2022
East Liverpool WWTP & Sewer SystemEast Liverpool3.1 MGD (million gallons per day)2022
Ripley STPRipley3.1 MGD (million gallons per day)2022
BARRY ROSE WWTP #2Pearland3.1 MGD (million gallons per day)2022
Longwood WWTPPearland3.1 MGD (million gallons per day)2022
Kuehler Road North WWTPNew Braunfels3.1 MGD (million gallons per day)2022
PAYSONPayson3.1 MGD (million gallons per day)2022
PORT WASHINGTON WWTPPort Washington3.1 MGD (million gallons per day)2022
Bryan WWTP & Sewer SystemBryan3.097 MGD (million gallons per day)2022
MONTE VISTA WWTPMonte Vista3.09 MGD (million gallons per day)2022
Corning (C) WWTPCorning3.08 MGD (million gallons per day)2022
KNOXVILLE WWTFKnoxville3.07 MGD (million gallons per day)2022
Hull Sewerage Collection System and WPCFHull3.07 MGD (million gallons per day)2022
TWO RIVERS WWTPTwo Rivers3.07 MGD (million gallons per day)2022
SUN PRAIRIE STPSun Prairie3.065 MGD (million gallons per day)2022
ONTARIO STPOntario3.06 MGD (million gallons per day)2022
MERRILL STPMerrill3.06 MGD (million gallons per day)2022
Memorial Villages WWTPHouston3.052 MGD (million gallons per day)2022
Malvern WWTPMalvern3.05 MGD (million gallons per day)2022
Northwest WWTP - Copperas CoveCopperas Cove3.05 MGD (million gallons per day)2022
DERBY WPCFDerby3.03 MGD (million gallons per day)2022
DERIDDER WWTFDeridder3.03 MGD (million gallons per day)2022
Sedalia Central WWTPSedalia3.03 MGD (million gallons per day)2022
SHELDON WWTPSheldon3.025 MGD (million gallons per day)2022
LEWISBURG STPLewisburg3.024 MGD (million gallons per day)2022
Christian County WRD Elm Street CSO Treatment FacilityTaylorville3.02 MGD (million gallons per day)2022
Christian County WRD WWTPTaylorville3.02 MGD (million gallons per day)2022
North Bergen MUA - Woodcliff STP/CS/CSONorth Bergen3.02 MGD (million gallons per day)2022
GROVE CITY BORO STPGrove City3.02 MGD (million gallons per day)2022
Greenwood Forest WWTPHouston3.02 MGD (million gallons per day)2022
Ukiah WWTFUkiah3.01 MGD (million gallons per day)2022
BAYOU LA BATRE WWTPBayou La Batre3 MGD (million gallons per day)2022
Fayette WWTPFayette3 MGD (million gallons per day)2022
DOTHAN CYPRESS CREEK WWTPDothan3 MGD (million gallons per day)2022
Hoover River chase WWTPBirmingham3 MGD (million gallons per day)2022
MONTGOMERY TOWASSA WWTPMontgomery3 MGD (million gallons per day)2022
TUSKEGEE NORTH Collection and WWTPFranklin3 MGD (million gallons per day)2022
Oneonta WWTPAllgood3 MGD (million gallons per day)2022
Bryant WWTPBryant3 MGD (million gallons per day)2022
Arkadelphia WWTPArkadelphia3 MGD (million gallons per day)2022
Western Water Recycling FacilityMarch Air Reserve Base3 MGD (million gallons per day)2022
MILLBRAE MADRONE WWTFMillbrae3 MGD (million gallons per day)2022
Sonoma Valley WWTFSonoma3 MGD (million gallons per day)2022
Carmel Area Wastewater Treatment PlantCarmel3 MGD (million gallons per day)2022
OJAI VALLEY SD WWTFVentura3 MGD (million gallons per day)2022
Moorpark WWTFMoorpark3 MGD (million gallons per day)2022
OLIVEHURST WWTFOlivehurst3 MGD (million gallons per day)2022
GALT WWTFGalt3 MGD (million gallons per day)2022
WASCO WWTFWasco3 MGD (million gallons per day)2022
DINUBA WWTFDinuba3 MGD (million gallons per day)2022
Corona WWTF #2Corona3 MGD (million gallons per day)2022
Santa Margarita Water District (Oso Creek WRP)Mission Viejo3 MGD (million gallons per day)2022
ASPEN CONSOLIDATED WWTPAspen3 MGD (million gallons per day)2022
HILL-N-PARK STPEvans3 MGD (million gallons per day)2022
Boxelder Sanitation DistrictFort Collins3 MGD (million gallons per day)2022
Brighton, City ofBrighton3 MGD (million gallons per day)2022
UNIVERSITY OF CONN WPCFStorrs Mansfield3 MGD (million gallons per day)2022
Venice Gardens WRFVenice3 MGD (million gallons per day)2022
OCOEE STP #2Ocoee3 MGD (million gallons per day)2022
Greenwood Lakes STPLake Mary3 MGD (million gallons per day)2022
Sanford South WRFSanford3 MGD (million gallons per day)2022
MILLVILLE AWTFPanama City3 MGD (million gallons per day)2022
West Melbourne WWTPMelbourne3 MGD (million gallons per day)2022
LAKE CITY WWTFLake City3 MGD (million gallons per day)2022
Leesburg/Turnpike WWTFOkahumpka3 MGD (million gallons per day)2022
Gateway Services District 1 WWTPFort Myers3 MGD (million gallons per day)2022
Southeast Pasco Subregional WWTFWesley Chapel3 MGD (million gallons per day)2022
Northwest Regional WWTFLakeland3 MGD (million gallons per day)2022
Northwest WWTFSaint Augustine3 MGD (million gallons per day)2022
Glen Lakes Subregional WWTPBrooksville3 MGD (million gallons per day)2022
Hazlehurst Bully Creek WPCPHazlehurst3 MGD (million gallons per day)2022
Indian Creek WRFMcdonough3 MGD (million gallons per day)2022
Savannah Crossroads WRPSavannah3 MGD (million gallons per day)2022
Wahoo Creek WPCPNewnan3 MGD (million gallons per day)2022
Cairo WPCPCairo3 MGD (million gallons per day)2022
City of Chatsworth Judson Vick WPCPChatsworth3 MGD (million gallons per day)2022
Rockdale County - Snapping Shoals WCPCConyers3 MGD (million gallons per day)2022
Cornelia WPCPCornelia3 MGD (million gallons per day)2022
Sterling Creek WRFRichmond Hill3 MGD (million gallons per day)2022
Sweetwater Creek WPCPDouglasville3 MGD (million gallons per day)2022
POST FALLS AREA STPPost Falls3 MGD (million gallons per day)2022
MOUNTAIN HOME SEWAGE LAGOONMountain Home3 MGD (million gallons per day)2022
BOLINGBROOK WRF #2Bolingbrook3 MGD (million gallons per day)2022
ROCK FALLS WWTP - N ANIXTER RDRock Falls3 MGD (million gallons per day)2022
MACOMB SEWAGE TREAT PLANTMacomb3 MGD (million gallons per day)2022
SOUTH BELOIT STPSouth Beloit3 MGD (million gallons per day)2022
PERU WWTP 1Peru3 MGD (million gallons per day)2022
MCHENRY CENTRAL STPMchenry3 MGD (million gallons per day)2022
CHESTER STPChester3 MGD (million gallons per day)2022
Hendricks County RSD WWTPAvon3 MGD (million gallons per day)2022
ALEXANDRIA WWTPAlexandria3 MGD (million gallons per day)2022
JEFFERSONVILLE North WWTPJeffersonville3 MGD (million gallons per day)2022
BEDFORD WWTPBedford3 MGD (million gallons per day)2022
NEW CASTLE WWTPNew Castle3 MGD (million gallons per day)2022
GAS CITY WWTPGas City3 MGD (million gallons per day)2022
WICHITA WWTP #5Wichita3 MGD (million gallons per day)2022
OLATHE CEDAR CREEK WWTPOlathe3 MGD (million gallons per day)2022
NEWTON WWTPNewton3 MGD (million gallons per day)2022
EL DORADO WWTPEl Dorado3 MGD (million gallons per day)2022
HAZARDHazard3 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.