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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
UKIAH STPUkiah0.065 MGD (million gallons per day)2022
Moore WWTPMoore0.065 MGD (million gallons per day)2022
Walnut Springs WWTPWalnut Springs0.065 MGD (million gallons per day)2022
GOODRICH STPGoodrich0.065 MGD (million gallons per day)2022
Falls City WWTPFalls City0.065 MGD (million gallons per day)2022
Yorkville Sewer Utility District No 1Sturtevant0.065 MGD (million gallons per day)2022
PLAINFIELD STPPlainfield0.065 MGD (million gallons per day)2022
Louann WWTPLouann0.064 MGD (million gallons per day)2022
Morgan Heights Water and Sanitation DistrictFort Morgan0.064 MGD (million gallons per day)2022
Ideal WPCPIdeal0.064 MGD (million gallons per day)2022
UNION WWTPUnion0.064 MGD (million gallons per day)2022
BRONSON WWTPBronson0.064 MGD (million gallons per day)2022
GLEN ELDER WWTPGlen Elder0.064 MGD (million gallons per day)2022
SENEY STPSeney0.064 MGD (million gallons per day)2022
CARLOS WWTPCarlos0.064 MGD (million gallons per day)2022
Meadville WWTPMeadville0.064 MGD (million gallons per day)2022
FCPWSD #3, Lakewood Mobile Home ParkVilla Ridge0.064 MGD (million gallons per day)2022
Leasburg WWTPLeasburg0.064 MGD (million gallons per day)2022
Orleans (T) La Fargeville SD STPLa Fargeville0.064 MGD (million gallons per day)2022
ENGLEHARD S.D. WWTPEngelhard0.064 MGD (million gallons per day)2022
CRESWELL WWTPCreswell0.064 MGD (million gallons per day)2022
RAVIA WWTRavia0.064 MGD (million gallons per day)2022
GLENCOE NW WWTGlencoe0.064 MGD (million gallons per day)2022
Byers WWTPByers0.064 MGD (million gallons per day)2022
AVOCA WWTPAvoca0.064 MGD (million gallons per day)2022
ETTRICK WWTPEttrick0.064 MGD (million gallons per day)2022
SHOSHONI LAGOONShoshoni0.064 MGD (million gallons per day)2022
Edmondson WWTPEdmondson0.063 MGD (million gallons per day)2022
FORT JONES WWTFFort Jones0.063 MGD (million gallons per day)2022
CULDESAC S/T FACILITYCuldesac0.063 MGD (million gallons per day)2022
West Liberty & Dundas STPDundas0.063 MGD (million gallons per day)2022
GENTRYVILLE WWTPGentryville0.063 MGD (million gallons per day)2022
DELTA WWTPDelta0.063 MGD (million gallons per day)2022
RUNNELLS STPRunnells0.063 MGD (million gallons per day)2022
WESLEY WWTPWesley0.063 MGD (million gallons per day)2022
HAMBURG WWTPHamburg0.063 MGD (million gallons per day)2022
ASHLAND LAGOONSAshland0.063 MGD (million gallons per day)2022
Cimarron, City ofCimarron0.063 MGD (million gallons per day)2022
Wappinger (T) Fleetwood Manor WWTPWappingers Falls0.063 MGD (million gallons per day)2022
Pickaway Co Walnut Heights Subdivision WWTP & SewersAshville0.063 MGD (million gallons per day)2022
VERDEN PWA WWTVerden0.063 MGD (million gallons per day)2022
Nome WWTPNome0.063 MGD (million gallons per day)2022
GEORGE WWTPGeorge0.063 MGD (million gallons per day)2022
ALMIRA S/T FACILITYAlmira0.063 MGD (million gallons per day)2022
METALINE FALLS STPMetaline Falls0.063 MGD (million gallons per day)2022
ENDEAVOR WWTPEndeavor0.063 MGD (million gallons per day)2022
LYNDON STATION STPLyndon Station0.063 MGD (million gallons per day)2022
NEW AUBURN WWTPNew Auburn0.063 MGD (million gallons per day)2022
SEXTONVILLE SD - STPSextonville0.063 MGD (million gallons per day)2022
ROCKLAND SEWAGE TREATMENT SYSTEMRockland0.062 MGD (million gallons per day)2022
TWIN LAKES STPRockwell City0.062 MGD (million gallons per day)2022
AXTELL WWTPAxtell0.062 MGD (million gallons per day)2022
MELVERN WWTPMelvern0.062 MGD (million gallons per day)2022
SACRAMENTO STPSacramento0.062 MGD (million gallons per day)2022
GARFIELD WWTPGarfield0.062 MGD (million gallons per day)2022
FOUNTAIN WWTFFountain0.062 MGD (million gallons per day)2022
Smithton WWTPSmithton0.062 MGD (million gallons per day)2022
Hale WWTPHale0.062 MGD (million gallons per day)2022
Frankford WWTPFrankford0.062 MGD (million gallons per day)2022
Keytesville WWTPKeytesville0.062 MGD (million gallons per day)2022
Andes (T) Sewers & STPAndes0.062 MGD (million gallons per day)2022
STOVAL WWTPStovall0.062 MGD (million gallons per day)2022
SEVERN WWTPSevern0.062 MGD (million gallons per day)2022
MESA STPMesa0.062 MGD (million gallons per day)2022
GOSPORT WWTPGosport0.061 MGD (million gallons per day)2022
CINCINNATI STLCincinnati0.061 MGD (million gallons per day)2022
LEWIS STLLewis0.061 MGD (million gallons per day)2022
LORIMOR WWTPLorimor0.061 MGD (million gallons per day)2022
TERRIL WWTPTerril0.061 MGD (million gallons per day)2022
BURDEN WWTPBurden0.061 MGD (million gallons per day)2022
LORETTO WWTPLoretto0.061 MGD (million gallons per day)2022
UNDERWOOD WWTPUnderwood0.061 MGD (million gallons per day)2022
LONGVILLE WWTPLongville0.061 MGD (million gallons per day)2022
SILVER CREEK TWP - STEWART RIVERSilver Creek0.061 MGD (million gallons per day)2022
Rosecrans Airport LagoonSaint Joseph0.061 MGD (million gallons per day)2022
Cairo WWTPCairo0.061 MGD (million gallons per day)2022
Theodosia WWTPTheodosia0.061 MGD (million gallons per day)2022
Gorham (T) STPGorham0.061 MGD (million gallons per day)2022
TRYON UA WWTTryon0.061 MGD (million gallons per day)2022
WINTHROP S/T FACILITYWinthrop0.061 MGD (million gallons per day)2022
DESOTO STATE PARKFort Payne0.06 MGD (million gallons per day)2022
Dellwood Estates LagoonOrrville0.06 MGD (million gallons per day)2022
GilbertownGilbertown0.06 MGD (million gallons per day)2022
CUBA WWTPCuba0.06 MGD (million gallons per day)2022
DOZIER LAGOONDozier0.06 MGD (million gallons per day)2022
SCOTTSBORO GOOSEPOND WWTPScottsboro0.06 MGD (million gallons per day)2022
Sumter County Sewer Authority-Bellamy LagoonBellamy0.06 MGD (million gallons per day)2022
Shorter WWTFShorter0.06 MGD (million gallons per day)2022
Pilot Station LagoonPilot Station0.06 MGD (million gallons per day)2022
Kotlik LagoonKotlik0.06 MGD (million gallons per day)2022
Aniak LagoonAniak0.06 MGD (million gallons per day)2022
New Stuyahok LagoonNew Stuyahok0.06 MGD (million gallons per day)2022
Sand Point LagoonSand Point0.06 MGD (million gallons per day)2022
Savoogna LagoonSavoonga0.06 MGD (million gallons per day)2022
Queen Valley WWTFPine0.06 MGD (million gallons per day)2022
Salesville WWTPNorfork0.06 MGD (million gallons per day)2022
Mitchellville WWTPDumas0.06 MGD (million gallons per day)2022
Widener WWTPWidener0.06 MGD (million gallons per day)2022
Kingsland WWTPKingsland0.06 MGD (million gallons per day)2022
Dyess WWTPDyess0.06 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.