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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
Rolla National Airport WWTFVichy0.031 MGD (million gallons per day)2022
Lohman WWTFLohman0.031 MGD (million gallons per day)2022
Syracuse WWTPSyracuse0.031 MGD (million gallons per day)2022
Rice Lake Rural Sewer DistrictDouglas0.031 MGD (million gallons per day)2022
South Salem WWTP & Sewer SystemSouth Salem0.031 MGD (million gallons per day)2022
Rolling Meadows WWTPKilgore0.031 MGD (million gallons per day)2022
Macon County Commission-WW Conveyance TransferTuskegee0.03 MGD (million gallons per day)2022
Anaktuvak Pass WWTPAnaktuvuk Pass0.03 MGD (million gallons per day)2022
Wainwright WWTPWainwright0.03 MGD (million gallons per day)2022
Kaktovik WWTPKaktovik0.03 MGD (million gallons per day)2022
Aleknagik LagoonAleknagik0.03 MGD (million gallons per day)2022
Kwethluk LagoonKwethluk0.03 MGD (million gallons per day)2022
Noatak LagoonNoatak0.03 MGD (million gallons per day)2022
Nondalton LagoonNondalton0.03 MGD (million gallons per day)2022
Russian Mission LagoonRussian Mission0.03 MGD (million gallons per day)2022
Fort Smith Blackstone Ranch POA WWTPFort Smith0.03 MGD (million gallons per day)2022
Lake Catherine State Park WWTPMalvern0.03 MGD (million gallons per day)2022
Pollard WWTPPollard0.03 MGD (million gallons per day)2022
Alicia WWTPAlicia0.03 MGD (million gallons per day)2022
Birdsong WWTPGilmore0.03 MGD (million gallons per day)2022
Russell WWTPRussell0.03 MGD (million gallons per day)2022
Markleeville Public Utility DistrictMarkleeville0.03 MGD (million gallons per day)2022
MOTHER LODE WWTFArnold0.03 MGD (million gallons per day)2022
Routt County Department of Environmental HealthSteamboat Springs0.03 MGD (million gallons per day)2022
Southwest Mesa County Rural Services PIDGateway0.03 MGD (million gallons per day)2022
San Miguel County-PlacervillePlacerville0.03 MGD (million gallons per day)2022
OLNEY SPRINGS WWTPOlney Springs0.03 MGD (million gallons per day)2022
LEFT HAND STPBoulder0.03 MGD (million gallons per day)2022
LAKE ELDORA WWTPNederland0.03 MGD (million gallons per day)2022
Routt County Community of Phippsburg WWTPPhippsburg0.03 MGD (million gallons per day)2022
RAMAH WWTPRamah0.03 MGD (million gallons per day)2022
Division of Highways STPArvada0.03 MGD (million gallons per day)2022
BACA GRANDE WWTP, ASPENCrestone0.03 MGD (million gallons per day)2022
NORTH LAMAR SAN DISTLamar0.03 MGD (million gallons per day)2022
Arriba , Town OfArriba0.03 MGD (million gallons per day)2022
Aspen Park MDConifer0.03 MGD (million gallons per day)2022
Fairway Pines SDRidgway0.03 MGD (million gallons per day)2022
TENSED W/W TREATMENT FACTensed0.03 MGD (million gallons per day)2022
WHITE BIRD SEWAGE TREATMENT SYSTEMWhite Bird0.03 MGD (million gallons per day)2022
PRINCETON--HAMPTONPrinceton0.03 MGD (million gallons per day)2022
Bliss Sewage LagoonsBliss0.03 MGD (million gallons per day)2022
ADDIEVILLE STPAddieville0.03 MGD (million gallons per day)2022
SEWARD STPSeward0.03 MGD (million gallons per day)2022
Lisbon, Village ofNewark0.03 MGD (million gallons per day)2022
ENFIELD WEST LAGOONEnfield0.03 MGD (million gallons per day)2022
KEENSBURG STPKeensburg0.03 MGD (million gallons per day)2022
WATAGA STP (SOUTH)Wataga0.03 MGD (million gallons per day)2022
WATSON STPWatson0.03 MGD (million gallons per day)2022
KINDERHOOK STPKinderhook0.03 MGD (million gallons per day)2022
PARKERSBURG STPParkersburg0.03 MGD (million gallons per day)2022
WILLOW HILL STPWillow Hill0.03 MGD (million gallons per day)2022
CLAYPOOL WWTPClaypool0.03 MGD (million gallons per day)2022
Friendship RSDFriendship0.03 MGD (million gallons per day)2022
Rockfield RSDRockfield0.03 MGD (million gallons per day)2022
Monterey WWTPMonterey0.03 MGD (million gallons per day)2022
Shamrock LakesHartford City0.03 MGD (million gallons per day)2022
CYLINDER STLCylinder0.03 MGD (million gallons per day)2022
FREDERIKA STLFrederika0.03 MGD (million gallons per day)2022
KENSETT WWTPKensett0.03 MGD (million gallons per day)2022
KESWICK-RUSSKeswick0.03 MGD (million gallons per day)2022
LIDDERDALE WWTPLidderdale0.03 MGD (million gallons per day)2022
PARNELL STLParnell0.03 MGD (million gallons per day)2022
REMBRANDT WWTPRembrandt0.03 MGD (million gallons per day)2022
SHERRILL EAST WWTPSherrill0.03 MGD (million gallons per day)2022
VAN WERT WWTPVan Wert0.03 MGD (million gallons per day)2022
WALLINGFORD WWTPWallingford0.03 MGD (million gallons per day)2022
ST DONATUS WASTEWATERSaint Donatus0.03 MGD (million gallons per day)2022
DEWAR SD STLDewar0.03 MGD (million gallons per day)2022
HOLYROOD WWTPHolyrood0.03 MGD (million gallons per day)2022
OLSBURG WWTPOlsburg0.03 MGD (million gallons per day)2022
PAXICO WWTPPaxico0.03 MGD (million gallons per day)2022
LAKE WAB I D WWTPEskridge0.03 MGD (million gallons per day)2022
SN CO SD #2 WWTPTopeka0.03 MGD (million gallons per day)2022
BLUE MOUND WWTPBlue Mound0.03 MGD (million gallons per day)2022
FONTANA WWTPFontana0.03 MGD (million gallons per day)2022
KINCAID WWTPKincaid0.03 MGD (million gallons per day)2022
LEHIGH WWTPHillsboro0.03 MGD (million gallons per day)2022
COLLYER WWTPCollyer0.03 MGD (million gallons per day)2022
WINONA WWTPWinona0.03 MGD (million gallons per day)2022
DAMAR WWTPDamar0.03 MGD (million gallons per day)2022
ALBERT WWTPAlbert0.03 MGD (million gallons per day)2022
KANORADO WWTPKanorado0.03 MGD (million gallons per day)2022
FALL RIVER WWTPFall River0.03 MGD (million gallons per day)2022
LV CO S D #5 WWTPBasehor0.03 MGD (million gallons per day)2022
North Madison Co SD - Executive PkBerea0.03 MGD (million gallons per day)2022
Peterville WWTPPaincourtville0.03 MGD (million gallons per day)2022
CASTOR STPCastor0.03 MGD (million gallons per day)2022
EVANGELINE PAR. IND. PONDVille Platte0.03 MGD (million gallons per day)2022
EROS STPEros0.03 MGD (million gallons per day)2022
Fairway EastAlexandria0.03 MGD (million gallons per day)2022
BIDDEFORD POOLBiddeford0.03 MGD (million gallons per day)2022
DAMARISCOTTA MILLS S.F.Nobleboro0.03 MGD (million gallons per day)2022
EASTERN PRERELEASE STPChurch Hill0.03 MGD (million gallons per day)2022
Poplar HillQuantico0.03 MGD (million gallons per day)2022
Cheltenham WWTPCheltenham0.03 MGD (million gallons per day)2022
ASSATEAGUE STATE PARK TPBerlin0.03 MGD (million gallons per day)2022
Norfolk Sewerage Collection System and WWTFNorfolk0.03 MGD (million gallons per day)2022
Otis Sewerage Collection System and WWTFOtis0.03 MGD (million gallons per day)2022
CUSTER STPCuster0.03 MGD (million gallons per day)2022
EMMETT LAGOONEmmett0.03 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.