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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
CROSS CITY WWTFCross City0.4 MGD (million gallons per day)2022
Chattahoochee WWTPChattahoochee0.4 MGD (million gallons per day)2022
Gretna WWTPGretna0.4 MGD (million gallons per day)2022
Buchanan WWTPBuchanan0.4 MGD (million gallons per day)2022
Arlington WPCPArlington0.4 MGD (million gallons per day)2022
Buena Vista WPCPBuena Vista0.4 MGD (million gallons per day)2022
Ellaville WPCPEllaville0.4 MGD (million gallons per day)2022
Gordon WPCFGordon0.4 MGD (million gallons per day)2022
Gray Wolf Creek WPCPGray0.4 MGD (million gallons per day)2022
Warm Springs WPCPWarm Springs0.4 MGD (million gallons per day)2022
KAHUKU WWTPKahuku0.4 MGD (million gallons per day)2022
CATLIN STPCatlin0.4 MGD (million gallons per day)2022
SANGAMON VALLEY PWD - STPMahomet0.4 MGD (million gallons per day)2022
ELWOOD STPElwood0.4 MGD (million gallons per day)2022
MARISSA STPMarissa0.4 MGD (million gallons per day)2022
FREEBURG WEST NO 2Freeburg0.4 MGD (million gallons per day)2022
PRINCEVILLE-N.E. STPPrinceville0.4 MGD (million gallons per day)2022
ORION STPOrion0.4 MGD (million gallons per day)2022
HEYWORTH STPHeyworth0.4 MGD (million gallons per day)2022
Otter Creek Lake Utility DistrictDavis0.4 MGD (million gallons per day)2022
GRAYVILLE STPGrayville0.4 MGD (million gallons per day)2022
SESSER STPSesser0.4 MGD (million gallons per day)2022
NEW PALESTINE WWTPNew Palestine0.4 MGD (million gallons per day)2022
WOODBURN WWTPWoodburn0.4 MGD (million gallons per day)2022
WALKERTON WWTPWalkerton0.4 MGD (million gallons per day)2022
LAPEL WWTPLapel0.4 MGD (million gallons per day)2022
ELBERFELD WWTPElberfeld0.4 MGD (million gallons per day)2022
BLOOMFIELD WWTPBloomfield0.4 MGD (million gallons per day)2022
PIERCETON WWTPPierceton0.4 MGD (million gallons per day)2022
VEVAY WWTPVevay0.4 MGD (million gallons per day)2022
Clear Creek CDFillmore0.4 MGD (million gallons per day)2022
LAKELAND RSDLeesburg0.4 MGD (million gallons per day)2022
HOSPERS WWTPHospers0.4 MGD (million gallons per day)2022
LISBON WWTPLisbon0.4 MGD (million gallons per day)2022
MANNING WWTPManning0.4 MGD (million gallons per day)2022
ELMA WWTPElma0.4 MGD (million gallons per day)2022
BELLEVILLE WWTPBelleville0.4 MGD (million gallons per day)2022
CALHOUN WWTPCalhoun0.4 MGD (million gallons per day)2022
LEWISPORTLewisport0.4 MGD (million gallons per day)2022
LEWISBURGLewisburg0.4 MGD (million gallons per day)2022
JONESVILLE STPJonesville0.4 MGD (million gallons per day)2022
LOGANSPORT STPLogansport0.4 MGD (million gallons per day)2022
FARMERVILLE STPFarmerville0.4 MGD (million gallons per day)2022
WBR Westport WWTPPort Allen0.4 MGD (million gallons per day)2022
SW HARBOR POL ABATE FACSouthwest Harbor0.4 MGD (million gallons per day)2022
Upton Sewerage Collection System and WWTFUpton0.4 MGD (million gallons per day)2022
LESLIE WWTPLeslie0.4 MGD (million gallons per day)2022
CEDAR SPRINGS STPCedar Springs0.4 MGD (million gallons per day)2022
RUSH CITY WWTPRush City0.4 MGD (million gallons per day)2022
BAY SPRINGS POTWBay Springs0.4 MGD (million gallons per day)2022
COLLINS POTWCollins0.4 MGD (million gallons per day)2022
Sikeston Business and Technology Park WWTPSikeston0.4 MGD (million gallons per day)2022
Rolla Vichy Road WWTPRolla0.4 MGD (million gallons per day)2022
Fair Grove WWTPFair Grove0.4 MGD (million gallons per day)2022
DCSD, Wyndgate Subdivision WWTFO Fallon0.4 MGD (million gallons per day)2022
Slater WWTPSlater0.4 MGD (million gallons per day)2022
Stockton WWTPStockton0.4 MGD (million gallons per day)2022
Houston Brushy Creek WWTPHouston0.4 MGD (million gallons per day)2022
Ironton WWTPIronton0.4 MGD (million gallons per day)2022
RAE County W&S DistrictBozeman0.4 MGD (million gallons per day)2022
MALTA WWTPMalta0.4 MGD (million gallons per day)2022
SHELBY WWTPShelby0.4 MGD (million gallons per day)2022
BIG SKY CO W&S DISTBig Sky0.4 MGD (million gallons per day)2022
MINDEN, WWTPMinden0.4 MGD (million gallons per day)2022
WEST POINT WWTPWest Point0.4 MGD (million gallons per day)2022
Pittsfield WWTFPittsfield0.4 MGD (million gallons per day)2022
Mendham Borough - CS/STPMendham0.4 MGD (million gallons per day)2022
Buena Borough MUA - CS/STPBuena0.4 MGD (million gallons per day)2022
Milford Borough - CS/STPMilford0.4 MGD (million gallons per day)2022
Jal, City ofJal0.4 MGD (million gallons per day)2022
Ausable (T) Keeseville WWTPKeeseville0.4 MGD (million gallons per day)2022
Suffolk (Co) SCSD #2 Tallmadge Woods STPMiller Place0.4 MGD (million gallons per day)2022
Suffolk (Co) SCSD #7 Medford-W. STPMedford0.4 MGD (million gallons per day)2022
Suffolk (Co) SCSD #13 Windwatch STPHauppauge0.4 MGD (million gallons per day)2022
Tuxedo Park (V) WWTPTuxedo Park0.4 MGD (million gallons per day)2022
Athens (V) Main STPAthens0.4 MGD (million gallons per day)2022
Margaretville (V) STP (NYCDEP)Margaretville0.4 MGD (million gallons per day)2022
Deposit (V) STPDeposit0.4 MGD (million gallons per day)2022
Dryden (V) STPDryden0.4 MGD (million gallons per day)2022
Clyde (V) WWTPClyde0.4 MGD (million gallons per day)2022
Bolivar (V) WWTPBolivar0.4 MGD (million gallons per day)2022
Ripley (T) WWTPRipley0.4 MGD (million gallons per day)2022
OAK ISLAND SATELLITE WWTPOak Island0.4 MGD (million gallons per day)2022
LAKE WACCAMAW WWTPLake Waccamaw0.4 MGD (million gallons per day)2022
MARSHALL WWTPMarshall0.4 MGD (million gallons per day)2022
Spring Hope WWTPSpring Hope0.4 MGD (million gallons per day)2022
HERTFORD WWTPHertford0.4 MGD (million gallons per day)2022
BEECH MOUNTAIN/POND CREEK WWTPBanner Elk0.4 MGD (million gallons per day)2022
Holmes Co Walnut Creek WWTP & SewersMillersburg0.4 MGD (million gallons per day)2022
Shelby Co Lake Loramie WWTPMinster0.4 MGD (million gallons per day)2022
Columbiana Co Gilford Lake WWTPLisbon0.4 MGD (million gallons per day)2022
Dalton WWTP & Sewer SystemDalton0.4 MGD (million gallons per day)2022
Anna WWTP & SewersAnna0.4 MGD (million gallons per day)2022
Union City WWTP & Sewer SystemUnion City0.4 MGD (million gallons per day)2022
Arcanum WWTP & SewersArcanum0.4 MGD (million gallons per day)2022
Clermont Co Miami Trails WWTPLoveland0.4 MGD (million gallons per day)2022
Lake Co Heatherstone WWTPPainesville0.4 MGD (million gallons per day)2022
Leesburg WWTP & Sewer SystemLeesburg0.4 MGD (million gallons per day)2022
Pemberville WWTP & Sewer SystemPemberville0.4 MGD (million gallons per day)2022
Ripley WWTP & Sewer SystemRipley0.4 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.