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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
WILSONVILLE WWTPWilsonville0.04 MGD (million gallons per day)2022
CROSSVILLE INDUSTRIAL PARK WWTPCrossville0.04 MGD (million gallons per day)2022
Marshall LagoonMarshall0.04 MGD (million gallons per day)2022
Nulato LagoonNulato0.04 MGD (million gallons per day)2022
Kaltag LagoonKaltag0.04 MGD (million gallons per day)2022
Quinhagak LagoonQuinhagak0.04 MGD (million gallons per day)2022
Valley Vista CollectionSomerton0.04 MGD (million gallons per day)2022
Saint Francis WWTPSaint Francis0.04 MGD (million gallons per day)2022
Chidester WWTPChidester0.04 MGD (million gallons per day)2022
CALPELLA WWTPCalpella0.04 MGD (million gallons per day)2022
Sea Ranch WWTFSanta Rosa0.04 MGD (million gallons per day)2022
Tomales WWTPTomales0.04 MGD (million gallons per day)2022
PARADISE COVE WWTFBelvedere Tiburon0.04 MGD (million gallons per day)2022
Reeder Tract WWTFLake Isabella0.04 MGD (million gallons per day)2022
Almont Sewage Hereafter In Transit PlantGunnison0.04 MGD (million gallons per day)2022
ALLENSPARK STPAllenspark0.04 MGD (million gallons per day)2022
Bent County/HastyHasty0.04 MGD (million gallons per day)2022
Douglas county - LOUVIERS WWTPLouviers0.04 MGD (million gallons per day)2022
BRISTOL WWTPHolly0.04 MGD (million gallons per day)2022
PINON WWTPNucla0.04 MGD (million gallons per day)2022
ROMEO LAGOONSLa Jara0.04 MGD (million gallons per day)2022
MESA WSDMesa0.04 MGD (million gallons per day)2022
Louviers WSDLouviers0.04 MGD (million gallons per day)2022
Teller County Wastewater UtilityDivide0.04 MGD (million gallons per day)2022
Douglasville-Douglas County Rebel Trails WPCPDouglasville0.04 MGD (million gallons per day)2022
Pine Street WPCP #2Grantville0.04 MGD (million gallons per day)2022
CASTLEFORD STPCastleford0.04 MGD (million gallons per day)2022
COLP SEWAGE TREATMENT PLAColp0.04 MGD (million gallons per day)2022
IUKA STPIuka0.04 MGD (million gallons per day)2022
WALTONVILLE STPWaltonville0.04 MGD (million gallons per day)2022
PIERRON WEST STPPierron0.04 MGD (million gallons per day)2022
FILLMORE STPFillmore0.04 MGD (million gallons per day)2022
MUDDY STPMuddy0.04 MGD (million gallons per day)2022
ST. ROSE STPBreese0.04 MGD (million gallons per day)2022
WEST SALEM SO. LAGOONWest Salem0.04 MGD (million gallons per day)2022
BANNER STPBanner0.04 MGD (million gallons per day)2022
RUMA STPCampbell Hill0.04 MGD (million gallons per day)2022
CAMPBELL HILL STPCampbell Hill0.04 MGD (million gallons per day)2022
VERGENNES WWTPVergennes0.04 MGD (million gallons per day)2022
ROCK CITY STPRock City0.04 MGD (million gallons per day)2022
MILTON STPMilton0.04 MGD (million gallons per day)2022
CLAREMONT STPClaremont0.04 MGD (million gallons per day)2022
STE MARIE STPSainte Marie0.04 MGD (million gallons per day)2022
NAPOLEON Rural Water CorpNapoleon0.04 MGD (million gallons per day)2022
East Enterprise RSDBennington0.04 MGD (million gallons per day)2022
Greens Fork WWTPGreens Fork0.04 MGD (million gallons per day)2022
Mt EtnaHuntington0.04 MGD (million gallons per day)2022
ATALISSA STLAtalissa0.04 MGD (million gallons per day)2022
AUBURN STLAuburn0.04 MGD (million gallons per day)2022
CLEARFIELD WWTPClearfield0.04 MGD (million gallons per day)2022
HOUGHTON STLHoughton0.04 MGD (million gallons per day)2022
MALCOM STLMalcom0.04 MGD (million gallons per day)2022
MINBURN STLMinburn0.04 MGD (million gallons per day)2022
PATON WWTPPaton0.04 MGD (million gallons per day)2022
PATTERSON WWTPPatterson0.04 MGD (million gallons per day)2022
RIVERTON WWTPRiverton0.04 MGD (million gallons per day)2022
SILVER CITY WASTEWATERSilver City0.04 MGD (million gallons per day)2022
STOCKTON WWTPStockton0.04 MGD (million gallons per day)2022
TROY MILLS WWTPTroy Mills0.04 MGD (million gallons per day)2022
COPELAND WWTPCopeland0.04 MGD (million gallons per day)2022
ROLLA WWTPRolla0.04 MGD (million gallons per day)2022
DENISON WWTPDenison0.04 MGD (million gallons per day)2022
LAKEWOOD HILLS I D WWTPOzawkie0.04 MGD (million gallons per day)2022
PRINCETON WWTPPrinceton0.04 MGD (million gallons per day)2022
HILLSDALE I D WWTPHillsdale0.04 MGD (million gallons per day)2022
WALNUT WWTPWalnut0.04 MGD (million gallons per day)2022
DORRANCE WWTPDorrance0.04 MGD (million gallons per day)2022
MUNJOR I D WWTPHays0.04 MGD (million gallons per day)2022
HANSTON WWTPHanston0.04 MGD (million gallons per day)2022
ROZEL WWTPRozel0.04 MGD (million gallons per day)2022
BREWSTER WWTPBrewster0.04 MGD (million gallons per day)2022
RN CO S D # 202 WWTP HABITHutchinson0.04 MGD (million gallons per day)2022
BRADFORDSVILLE STPBradfordsville0.04 MGD (million gallons per day)2022
LIVINGSTON STPLivingston0.04 MGD (million gallons per day)2022
SALINE STPSaline0.04 MGD (million gallons per day)2022
NORWOOD LAGOONNorwood0.04 MGD (million gallons per day)2022
DRY PRONG WWTPDry Prong0.04 MGD (million gallons per day)2022
QUITMAN STPThibodaux0.04 MGD (million gallons per day)2022
JONATAN DAVIS STPBarataria0.04 MGD (million gallons per day)2022
ROBELINE WWCTSRobeline0.04 MGD (million gallons per day)2022
CALVIN LAGOONCalvin0.04 MGD (million gallons per day)2022
Harmony Hills WWTPPineville0.04 MGD (million gallons per day)2022
NORTH HAVEN, WWTFNorth Haven0.04 MGD (million gallons per day)2022
CANTON WWCFCanton0.04 MGD (million gallons per day)2022
Southern Senior High SchoolHarwood0.04 MGD (million gallons per day)2022
OLDTOWN WWTPOldtown0.04 MGD (million gallons per day)2022
Kitzmiller WWTSKitzmiller0.04 MGD (million gallons per day)2022
FAIRMOUNT STPWestover0.04 MGD (million gallons per day)2022
BYRON WWTFByron0.04 MGD (million gallons per day)2022
ALTO STPAlto0.04 MGD (million gallons per day)2022
MICHIGAMME STPMichigamme0.04 MGD (million gallons per day)2022
COVERT STPCovert0.04 MGD (million gallons per day)2022
NEW ERA STPNew Era0.04 MGD (million gallons per day)2022
ROCKLAND TWP STPRockland0.04 MGD (million gallons per day)2022
ALPHA STPAlpha0.04 MGD (million gallons per day)2022
MEYER TWP LAGOONHermansville0.04 MGD (million gallons per day)2022
ST HILAIRE WWTPSaint Hilaire0.04 MGD (million gallons per day)2022
GRANADA WWTFGranada0.04 MGD (million gallons per day)2022
BEAVER BAY WWTFBeaver Bay0.04 MGD (million gallons per day)2022
WILLOW RIVER WWTPWillow River0.04 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.