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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
WILKESON STPWilkeson0.036 MGD (million gallons per day)2022
PLEASANT VIEW PSD WWTPBranchland0.036 MGD (million gallons per day)2022
BROKAW WWTPBrokaw0.036 MGD (million gallons per day)2022
LEBANON SD #1 STPLebanon0.036 MGD (million gallons per day)2022
Coffeeville Step & WWTPCoffeeville0.035 MGD (million gallons per day)2022
Booneville Human Development Center WWTPBooneville0.035 MGD (million gallons per day)2022
Okolona WWTPOkolona0.035 MGD (million gallons per day)2022
Peetz, Town ofPeetz0.035 MGD (million gallons per day)2022
KALISPEL BAY STPNordman0.035 MGD (million gallons per day)2022
WINCHESTER S/T FACILITYWinchester0.035 MGD (million gallons per day)2022
HARRISON S/T FACILITYHarrison0.035 MGD (million gallons per day)2022
New Memphis SD WastewaterNew Memphis0.035 MGD (million gallons per day)2022
EDWARDSPORTEdwardsport0.035 MGD (million gallons per day)2022
WINGATE WWTPWingate0.035 MGD (million gallons per day)2022
Fowlerton WWTPFowlerton0.035 MGD (million gallons per day)2022
Stilesville WWTPStilesville0.035 MGD (million gallons per day)2022
BEAMAN WWTPBeaman0.035 MGD (million gallons per day)2022
COIN WWTPCoin0.035 MGD (million gallons per day)2022
DEDHAM STLDedham0.035 MGD (million gallons per day)2022
HORNICK SEWAGE LAGOONHornick0.035 MGD (million gallons per day)2022
LISCOMB STLLiscomb0.035 MGD (million gallons per day)2022
MAURICE WWTPMaurice0.035 MGD (million gallons per day)2022
ONSLOW WWTPOnslow0.035 MGD (million gallons per day)2022
SMITHLAND WWTPSmithland0.035 MGD (million gallons per day)2022
HARDTNER WWTPHardtner0.035 MGD (million gallons per day)2022
IUKA WWTPIuka0.035 MGD (million gallons per day)2022
MI CO S D WALNUT CREEK EST WWTPHillsdale0.035 MGD (million gallons per day)2022
EASTON WWTPEaston0.035 MGD (million gallons per day)2022
MCCRACKEN WWTPMc Cracken0.035 MGD (million gallons per day)2022
RUSH CENTER WWTPRush Center0.035 MGD (million gallons per day)2022
Mandela WWTPNew Roads0.035 MGD (million gallons per day)2022
WALKERVILLE STPWalkerville0.035 MGD (million gallons per day)2022
STORDEN WWTPStorden0.035 MGD (million gallons per day)2022
HANLEY FALLS WWTPHanley Falls0.035 MGD (million gallons per day)2022
KETTLE RIVER WWTPKettle River0.035 MGD (million gallons per day)2022
MILROY WWTPMilroy0.035 MGD (million gallons per day)2022
CLIMAX WWTPClimax0.035 MGD (million gallons per day)2022
LAKE BRONSON WWTPLake Bronson0.035 MGD (million gallons per day)2022
FCPWSD #3 Rainbow Lake Estates WWTPVilla Ridge0.035 MGD (million gallons per day)2022
Center WWTPCenter0.035 MGD (million gallons per day)2022
Clark WWTPClark0.035 MGD (million gallons per day)2022
Vanduser WWTPVanduser0.035 MGD (million gallons per day)2022
Grandin WWTPGrandin0.035 MGD (million gallons per day)2022
Marquand WWTPMarquand0.035 MGD (million gallons per day)2022
Niangua WWTPNiangua0.035 MGD (million gallons per day)2022
Collins WTFCollins0.035 MGD (million gallons per day)2022
VALIER WWTPValier0.035 MGD (million gallons per day)2022
Oakland Borough - CS/STPOakland0.035 MGD (million gallons per day)2022
Roxbury (T) Denver Sewer Corp WWTPRoxbury0.035 MGD (million gallons per day)2022
Riverhead, (T) Community College WWTPRiverhead0.035 MGD (million gallons per day)2022
Hillsdale, (T) WWTP & CollectionHillsdale0.035 MGD (million gallons per day)2022
Dresden (T) Huletts Landing STPHuletts Landing0.035 MGD (million gallons per day)2022
Jasper (T) WWTP & Collection SystemJasper0.035 MGD (million gallons per day)2022
Troupsburg (T) Prop.STP & OnsitesTroupsburg0.035 MGD (million gallons per day)2022
Macksburg WWTP & Collection SystemMacksburg0.035 MGD (million gallons per day)2022
Jefferson Co Ridgeland Subdivision WWTPToronto0.035 MGD (million gallons per day)2022
Sandusky Co Adams AcresFremont0.035 MGD (million gallons per day)2022
JET WWTJet0.035 MGD (million gallons per day)2022
PITTSBURG PWA WWTPittsburg0.035 MGD (million gallons per day)2022
MANITOU WWTManitou0.035 MGD (million gallons per day)2022
HANKSVILLEHanksville0.035 MGD (million gallons per day)2022
DUTCH JOHNDutch John0.035 MGD (million gallons per day)2022
Shoreham WWTFShoreham0.035 MGD (million gallons per day)2022
VIRGILINA STPVirgilina0.035 MGD (million gallons per day)2022
DODDRIDGE CO SEWERWest Union0.035 MGD (million gallons per day)2022
NEWBURG WWTPNewburg0.035 MGD (million gallons per day)2022
Maple Grove Estates SD - STPWest Salem0.035 MGD (million gallons per day)2022
CAZENOVIA STPCazenovia0.035 MGD (million gallons per day)2022
FERRYVILLE WWTPFerryville0.035 MGD (million gallons per day)2022
GRATIOT STPGratiot0.035 MGD (million gallons per day)2022
BRULE SD - STPBrule0.035 MGD (million gallons per day)2022
OGEMA SD #1 STPOgema0.035 MGD (million gallons per day)2022
BURLINGTON LAGOONBurlington0.035 MGD (million gallons per day)2022
AndersonvilleAndersonville0.034 MGD (million gallons per day)2022
Verona WastewaterVerona0.034 MGD (million gallons per day)2022
FLOYD CENTRAL HS STPFloyds Knobs0.034 MGD (million gallons per day)2022
KELLERTON WWTPKellerton0.034 MGD (million gallons per day)2022
LELAND WWTPLeland0.034 MGD (million gallons per day)2022
LESTER STLLester0.034 MGD (million gallons per day)2022
LINEVILLE STLLineville0.034 MGD (million gallons per day)2022
LUVERNE STLLu Verne0.034 MGD (million gallons per day)2022
PLAINFIELD STLPlainfield0.034 MGD (million gallons per day)2022
VOLGA CITY WWTPVolga0.034 MGD (million gallons per day)2022
MULLINVILLE WWTPMullinville0.034 MGD (million gallons per day)2022
OFFERLE WWTPOfferle0.034 MGD (million gallons per day)2022
HERNDON WWTPHerndon0.034 MGD (million gallons per day)2022
MOUND VALLEY WWTPMound Valley0.034 MGD (million gallons per day)2022
ELK CITY WWTPElk City0.034 MGD (million gallons per day)2022
LANE CO.IMP DIST #1 WWTPDighton0.034 MGD (million gallons per day)2022
HEWITT WWTPHewitt0.034 MGD (million gallons per day)2022
DEER CREEK WWTPDeer Creek0.034 MGD (million gallons per day)2022
CAMPBELL WWTPCampbell0.034 MGD (million gallons per day)2022
VILLARD WWTFVillard0.034 MGD (million gallons per day)2022
LAPORTE WWTFLaporte0.034 MGD (million gallons per day)2022
Rocheport WWTPRocheport0.034 MGD (million gallons per day)2022
Ohkay Owingeh, Pueblo ofEspanola0.034 MGD (million gallons per day)2022
Clayton (T) Depauville STPDepauville0.034 MGD (million gallons per day)2022
ADRIAN STPAdrian0.034 MGD (million gallons per day)2022
Lewis Twp STPMillmont0.034 MGD (million gallons per day)2022
Quail RunLa Vernia0.034 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.