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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
CADDO PARISH SD 7 WWTFShreveport0.6 MGD (million gallons per day)2022
WOODLAND WWTFBaileyville0.6 MGD (million gallons per day)2022
George's Creek WWTPWesternport0.6 MGD (million gallons per day)2022
GRANTSVILLE WWTPGrantsville0.6 MGD (million gallons per day)2022
Douglas Sewerage Collection System and WWTFDouglas0.6 MGD (million gallons per day)2022
Templeton Sewerage Collection System and WWTFBaldwinville0.6 MGD (million gallons per day)2022
BUTMAN TWP WWSLGladwin0.6 MGD (million gallons per day)2022
ZEELAND STPZeeland0.6 MGD (million gallons per day)2022
CLARE WWTPClare0.6 MGD (million gallons per day)2022
L'ANSE WWTPLanse0.6 MGD (million gallons per day)2022
BILLINGS TWP. SEW. SYS.Beaverton0.6 MGD (million gallons per day)2022
SAUK CENTRE WWTPSauk Centre0.6 MGD (million gallons per day)2022
NEW RICHLAND WWTPNew Richland0.6 MGD (million gallons per day)2022
RAYMOND POTW, EASTRaymond0.6 MGD (million gallons per day)2022
SCCPWSD #2 Hickory Trails WWTPWright City0.6 MGD (million gallons per day)2022
Ashland WWTPAshland0.6 MGD (million gallons per day)2022
East Prairie WWTPEast Prairie0.6 MGD (million gallons per day)2022
Rockaway Beach WWTPRockaway Beach0.6 MGD (million gallons per day)2022
Higginsville S. LagoonHigginsville0.6 MGD (million gallons per day)2022
Owensville WWTPOwensville0.6 MGD (million gallons per day)2022
Four Corners WRFBozeman0.6 MGD (million gallons per day)2022
HARDIN WWT FACILITYHardin0.6 MGD (million gallons per day)2022
POPLAR WWTPPoplar0.6 MGD (million gallons per day)2022
COLSTRIP WWTPColstrip0.6 MGD (million gallons per day)2022
COZAD, WWTPCozad0.6 MGD (million gallons per day)2022
Churchill Moody WWTPFallon0.6 MGD (million gallons per day)2022
SILVER SPRINGS STPSilver Springs0.6 MGD (million gallons per day)2022
LOVELOCK WWTFLovelock0.6 MGD (million gallons per day)2022
Wolfeboro WWTFWolfeboro0.6 MGD (million gallons per day)2022
Plumsted Township - CS/STPNew Egypt0.6 MGD (million gallons per day)2022
Allamuchy Township MUA - CS/STPGreat Meadows0.6 MGD (million gallons per day)2022
Jicarilla Apache Utility Authority/Dulce WWTPDulce0.6 MGD (million gallons per day)2022
Sierra County Regional WWTP-North AreaTruth Or Consequences0.6 MGD (million gallons per day)2022
Bayard Regional WWFBayard0.6 MGD (million gallons per day)2022
ANTHONY C.S.Anthony0.6 MGD (million gallons per day)2022
Corrales, Village ofCorrales0.6 MGD (million gallons per day)2022
Suffolk (Co) SCSD #6 Kings Park STPKings Park0.6 MGD (million gallons per day)2022
Maybrook (V) WWTPMaybrook0.6 MGD (million gallons per day)2022
Bethel (T) - Kauneonga Lake STPKauneonga Lake0.6 MGD (million gallons per day)2022
Corinth (V) STPCorinth0.6 MGD (million gallons per day)2022
Whitehall (V) STP and SewersWhitehall0.6 MGD (million gallons per day)2022
Sackets Harbor (V) STPSackets Harbor0.6 MGD (million gallons per day)2022
Moravia, (V) WWTPMoravia0.6 MGD (million gallons per day)2022
Phoenix (V) STP and SewersPhoenix0.6 MGD (million gallons per day)2022
Honeoye Falls (V) WWTPHoneoye Falls0.6 MGD (million gallons per day)2022
SPARTA WWTPSparta0.6 MGD (million gallons per day)2022
JEFFERSON WWTPJefferson0.6 MGD (million gallons per day)2022
BANNER ELK WWTPBanner Elk0.6 MGD (million gallons per day)2022
CONOVER SOUTHEAST WWTPConover0.6 MGD (million gallons per day)2022
BOILING SPRINGS WWTPBoiling Springs0.6 MGD (million gallons per day)2022
Manteo WWTPManteo0.6 MGD (million gallons per day)2022
DALLAS WWTPDallas0.6 MGD (million gallons per day)2022
Biscoe WWTPBiscoe0.6 MGD (million gallons per day)2022
STAR WWTPStar0.6 MGD (million gallons per day)2022
SWANSBORO WWTPSwansboro0.6 MGD (million gallons per day)2022
SURF CITY WWTPHolly Ridge0.6 MGD (million gallons per day)2022
MAXTON WWTPMaxton0.6 MGD (million gallons per day)2022
BRYSON CITY WWTPBryson City0.6 MGD (million gallons per day)2022
Geneva-on-the-Lake WWTP & SewersGeneva0.6 MGD (million gallons per day)2022
Ashville WWTP & Sewer SystemAshville0.6 MGD (million gallons per day)2022
Loudonville WWTP & Sewer SystemLoudonville0.6 MGD (million gallons per day)2022
The Plains WWTP & SewersThe Plains0.6 MGD (million gallons per day)2022
New London WWTP & Sewer SystemNew London0.6 MGD (million gallons per day)2022
Butler Co Queen Acres WRFHamilton0.6 MGD (million gallons per day)2022
Cadiz WWTP & Sewer SystemCadiz0.6 MGD (million gallons per day)2022
Genoa WWTP & Sewer SystemGenoa0.6 MGD (million gallons per day)2022
Hartville WWTP & Sewer SystemHartville0.6 MGD (million gallons per day)2022
Mingo Junction WWTP & Sewer SystemMingo Junction0.6 MGD (million gallons per day)2022
Portsmouth Sciotoville WWTP & Sewer SystemPortsmouth0.6 MGD (million gallons per day)2022
Lakengren WWTP & Sewer SystemEaton0.6 MGD (million gallons per day)2022
Lucasville WWTP and collection systemLucasville0.6 MGD (million gallons per day)2022
Shadyside WWTP & Sewer SystemShadyside0.6 MGD (million gallons per day)2022
Yellow Springs WWTP & Sewer SystemYellow Springs0.6 MGD (million gallons per day)2022
TECUMSEH UA WWTTecumseh0.6 MGD (million gallons per day)2022
MONMOUTH STPMonmouth0.6 MGD (million gallons per day)2022
LOGAN TWP STPAltoona0.6 MGD (million gallons per day)2022
WEST NEWTON BORO STPWest Newton0.6 MGD (million gallons per day)2022
BJWSA/St. HelenaBeaufort0.6 MGD (million gallons per day)2022
BYRDSTOWN WWTPByrdstown0.6 MGD (million gallons per day)2022
DOVER STPDover0.6 MGD (million gallons per day)2022
HENDERSON LAGOON - SOUTHHenderson0.6 MGD (million gallons per day)2022
MAYNARDVILLE STPMaynardville0.6 MGD (million gallons per day)2022
OAK RIDGE Rarity Ridge WWTPOak Ridge0.6 MGD (million gallons per day)2022
Woodbury STPWoodbury0.6 MGD (million gallons per day)2022
Aledo WWTPAledo0.6 MGD (million gallons per day)2022
Port O'Connor WWTPPort Lavaca0.6 MGD (million gallons per day)2022
Harris Co MUD #365 WWTPHouston0.6 MGD (million gallons per day)2022
Glen Rose WWTPGlen Rose0.6 MGD (million gallons per day)2022
De Cordova Bend WWTPGranbury0.6 MGD (million gallons per day)2022
Justin WWTPJustin0.6 MGD (million gallons per day)2022
Alvarado WWTPAlvarado0.6 MGD (million gallons per day)2022
Crandall WWTPCrandall0.6 MGD (million gallons per day)2022
West WWTPOverton0.6 MGD (million gallons per day)2022
Fondren Road WWTPHouston0.6 MGD (million gallons per day)2022
River Plantation WWTPConroe0.6 MGD (million gallons per day)2022
Brenwood WWTPHouston0.6 MGD (million gallons per day)2022
North Green WWTPHouston0.6 MGD (million gallons per day)2022
MUD #191 WWTPHouston0.6 MGD (million gallons per day)2022
Anahuac WWTPAnahuac0.6 MGD (million gallons per day)2022
Bissonnet WWTPHouston0.6 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.