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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
Sedalia North WWTPSedalia2.5 MGD (million gallons per day)2022
ELKO WWTFElko2.5 MGD (million gallons per day)2022
Durham WWTFDurham2.5 MGD (million gallons per day)2022
Bernards Township SA - CS/STPBasking Ridge2.5 MGD (million gallons per day)2022
Delran Township SA - CS/STPDelran2.5 MGD (million gallons per day)2022
Pemberton Township MUA - CS/STPPemberton2.5 MGD (million gallons per day)2022
Florence Township STPFlorence2.5 MGD (million gallons per day)2022
ARTESIA STPArtesia2.5 MGD (million gallons per day)2022
LAS VEGAS WWTPLas Vegas2.5 MGD (million gallons per day)2022
Suffolk (Co) SCSD #21 SUNY STPStony Brook2.5 MGD (million gallons per day)2022
Port Jervis (C) STP (owner NYCDEP)Port Jervis2.5 MGD (million gallons per day)2022
East Greenbush (T) STPEast Greenbush2.5 MGD (million gallons per day)2022
Washington (Co) SD#2 Fort EdwardSTPFort Edward2.5 MGD (million gallons per day)2022
Clinton (V) WWTPClinton2.5 MGD (million gallons per day)2022
Norwich (C) STPNorwich2.5 MGD (million gallons per day)2022
MEBANE WWTP AND COLLECTION SYSTEMMebane2.5 MGD (million gallons per day)2022
MOREHEAD CITY WWTPMorehead City2.5 MGD (million gallons per day)2022
Hoke County WWTPRaeford2.5 MGD (million gallons per day)2022
RED SPRINGS WWTPRed Springs2.5 MGD (million gallons per day)2022
BREVARD WWTPPisgah Forest2.5 MGD (million gallons per day)2022
TWELVE MILE CREEK WWTPWaxhaw2.5 MGD (million gallons per day)2022
YADKINVILLE WWTPYadkinville2.5 MGD (million gallons per day)2022
Archbold WWTP & Sewer SystemArchbold2.5 MGD (million gallons per day)2022
Vermilion WWTP & Sewer SystemVermilion2.5 MGD (million gallons per day)2022
Napoleon WWTP & Sewer SystemNapoleon2.5 MGD (million gallons per day)2022
Celina WWTP & Sewer SystemCelina2.5 MGD (million gallons per day)2022
Englewood WWTP & Sewer SystemEnglewood2.5 MGD (million gallons per day)2022
Shelby WWTP & Sewer SystemShelby2.5 MGD (million gallons per day)2022
MCALESTER WEST WWTMcalester2.5 MGD (million gallons per day)2022
BIXBY PWA SOUTH WWTBixby2.5 MGD (million gallons per day)2022
SILVERTON STPSilverton2.5 MGD (million gallons per day)2022
DALLAS STPDallas2.5 MGD (million gallons per day)2022
Westerly WWTFWesterly2.5 MGD (million gallons per day)2022
Brookings Wastewater Collection SystemBrookings2.5 MGD (million gallons per day)2022
ARLINGTON WWTPArlington2.5 MGD (million gallons per day)2022
CHURCH HILL STPChurch Hill2.5 MGD (million gallons per day)2022
DECHERD STPFranklin2.5 MGD (million gallons per day)2022
MARTIN STPMartin2.5 MGD (million gallons per day)2022
Sam C. McKenzie, Jr. Water Reclamation FacilityNew Braunfels2.5 MGD (million gallons per day)2022
Willow Street WWTPVictoria2.5 MGD (million gallons per day)2022
Weslaco WWTPWeslaco2.5 MGD (million gallons per day)2022
Weslaco South WWTPWeslaco2.5 MGD (million gallons per day)2022
Whitecap WWTPCorpus Christi2.5 MGD (million gallons per day)2022
PORTLAND STPPortland2.5 MGD (million gallons per day)2022
South WWTP - Copperas CoveCopperas Cove2.5 MGD (million gallons per day)2022
San Gabriel WWTPGeorgetown2.5 MGD (million gallons per day)2022
Cedar Park WWTPCedar Park2.5 MGD (million gallons per day)2022
Bonham WWTPBonham2.5 MGD (million gallons per day)2022
Robinson WWTPHuntsville2.5 MGD (million gallons per day)2022
Liberty WWTPLiberty2.5 MGD (million gallons per day)2022
Channelview WWTPChannelview2.5 MGD (million gallons per day)2022
Harris Co MUD #170 Regional WWTPHouston2.5 MGD (million gallons per day)2022
Renn Road MUD WWTPHouston2.5 MGD (million gallons per day)2022
CNP UD WWTPHouston2.5 MGD (million gallons per day)2022
Uvalde WWTPUvalde2.5 MGD (million gallons per day)2022
Fredericksburg WWTPFredericksburg2.5 MGD (million gallons per day)2022
New Territory Regional (North) WWTPSugar Land2.5 MGD (million gallons per day)2022
WARRENTON STPWarrenton2.5 MGD (million gallons per day)2022
OAK HARBOR STPOak Harbor2.5 MGD (million gallons per day)2022
PORT ANGELES WWTPPort Angeles2.5 MGD (million gallons per day)2022
SALT ROCK PSD WWTPOna2.5 MGD (million gallons per day)2022
WHITE SULPHUR SPRINGS WWTPWhite Sulphur Springs2.5 MGD (million gallons per day)2022
WESTON WWTPWeston2.5 MGD (million gallons per day)2022
KEYSER WWTPKeyser2.5 MGD (million gallons per day)2022
NORTH BECKLEY PSD WWTPBeckley2.5 MGD (million gallons per day)2022
BUCKHANNON WWTPBuckhannon2.5 MGD (million gallons per day)2022
GRAFTON WWTPGrafton2.5 MGD (million gallons per day)2022
LAKE GENEVA WWTPLake Geneva2.5 MGD (million gallons per day)2022
RAWLINS LAGOONRawlins2.5 MGD (million gallons per day)2022
KETCHUM STPKetchum2.48 MGD (million gallons per day)2022
Athol Sewerage Collection System and WWTFAthol2.48 MGD (million gallons per day)2022
Canal Winchester WWTP & SewersCanal Winchester2.48 MGD (million gallons per day)2022
PESHTIGO WWTPPeshtigo2.474 MGD (million gallons per day)2022
CROWLEY STPCrowley2.47 MGD (million gallons per day)2022
Pampa WWTPPampa2.461 MGD (million gallons per day)2022
Chisago Lakes Joint STCChisago City2.46 MGD (million gallons per day)2022
ANDALUSIA RIVERSIDE WWTPAndalusia2.45 MGD (million gallons per day)2022
OAKDALE WWTFOakdale2.45 MGD (million gallons per day)2022
Craig, City ofCraig2.45 MGD (million gallons per day)2022
Delta WWTPDelta2.45 MGD (million gallons per day)2022
Savannah Georgetown WRPSavannah2.45 MGD (million gallons per day)2022
JEFFERSON WWTPJefferson2.45 MGD (million gallons per day)2022
ST MICHAEL WWTPSaint Michael2.445 MGD (million gallons per day)2022
PLANO STPPlano2.44 MGD (million gallons per day)2022
CRESCO WWTPCresco2.436 MGD (million gallons per day)2022
Show Low WWTFShow Low2.43 MGD (million gallons per day)2022
Jackson WWTPJackson2.43 MGD (million gallons per day)2022
HANOVER PARK WWTP NO.1Hanover Park2.42 MGD (million gallons per day)2022
LEWISBURG AREA STPLewisburg2.42 MGD (million gallons per day)2022
Berryville WWTPBerryville2.4 MGD (million gallons per day)2022
IMPERIAL WWTFImperial2.4 MGD (million gallons per day)2022
Security SDColorado Springs2.4 MGD (million gallons per day)2022
Oviedo WRFOviedo2.4 MGD (million gallons per day)2022
ECUA- Pensacola Beach WRFPensacola2.4 MGD (million gallons per day)2022
Eustis Bates Avenue WWTFEustis2.4 MGD (million gallons per day)2022
PALMETTO WWTPPalmetto2.4 MGD (million gallons per day)2022
HOLLY HILL WRFDeltona2.4 MGD (million gallons per day)2022
Bear Creek LAS (Henry County)Hampton2.4 MGD (million gallons per day)2022
Manchester LASManchester2.4 MGD (million gallons per day)2022
WEISER STPWeiser2.4 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.