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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
Owens Elementary School-WWTPAthens0.02 MGD (million gallons per day)2022
Lucy's Branch-WWTPAthens0.02 MGD (million gallons per day)2022
Jefferson County Housing Authority-Dixie ManorPinson0.02 MGD (million gallons per day)2022
Harvest Monrovia-Stoney Creek WWTPHuntsville0.02 MGD (million gallons per day)2022
Shungnak LagoonShungnak0.02 MGD (million gallons per day)2022
Grayling LagoonGrayling0.02 MGD (million gallons per day)2022
Minto LagoonMinto0.02 MGD (million gallons per day)2022
Martinez Lake LagoonYuma0.02 MGD (million gallons per day)2022
Pinal County Eleven Mile Corner Rd WWTPCasa Grande0.02 MGD (million gallons per day)2022
City of Rose BudRose Bud0.02 MGD (million gallons per day)2022
Westwood Village Sewer PlantHot Springs National Park0.02 MGD (million gallons per day)2022
Six Mile Village WWTFWilseyville0.02 MGD (million gallons per day)2022
BECKWOURTH WWTFQuincy0.02 MGD (million gallons per day)2022
LEMON COVE WWTFLemon Cove0.02 MGD (million gallons per day)2022
Sage Pointe Water and Sanitation CoSterling0.02 MGD (million gallons per day)2022
SEDGWICK WWTPSedgwick0.02 MGD (million gallons per day)2022
VILAS STPVilas0.02 MGD (million gallons per day)2022
CROOK WWTPCrook0.02 MGD (million gallons per day)2022
SEIBERT WWTPSeibert0.02 MGD (million gallons per day)2022
GOLDEN GATE CANYON WWTPGolden0.02 MGD (million gallons per day)2022
BONNY REC. AREA STPIdalia0.02 MGD (million gallons per day)2022
ORCHARD CITY LAGOONOrchard0.02 MGD (million gallons per day)2022
MONTROSE/CASIAS LAVATOMontrose0.02 MGD (million gallons per day)2022
GALETON SAN DISTEaton0.02 MGD (million gallons per day)2022
MONTEZUMA, TOWN OFDillon0.02 MGD (million gallons per day)2022
SILVER HILLS SDBlack Hawk0.02 MGD (million gallons per day)2022
Holland Creek MDEdwards0.02 MGD (million gallons per day)2022
Snyder SDSnyder0.02 MGD (million gallons per day)2022
Cokedale, Town ofTrinidad0.02 MGD (million gallons per day)2022
Amherst Unincorp AreaHolyoke0.02 MGD (million gallons per day)2022
Genoa , Town ofGenoa0.02 MGD (million gallons per day)2022
Penrose SDPenrose0.02 MGD (million gallons per day)2022
Conifer MDConifer0.02 MGD (million gallons per day)2022
Larimer County - Carter LakeBerthoud0.02 MGD (million gallons per day)2022
GARFIELD BAY SEWER SYSTEMSagle0.02 MGD (million gallons per day)2022
RAPID RIVER SEWAGE TREATMENT FACRiggins0.02 MGD (million gallons per day)2022
BLOOMINGTON S/T FACILITYBloomington0.02 MGD (million gallons per day)2022
MOORE Water & Sewer AssociationMoore0.02 MGD (million gallons per day)2022
ROSWELL LSASParma0.02 MGD (million gallons per day)2022
South Park Utilities-Water & SewerShelley0.02 MGD (million gallons per day)2022
SPRINGERTON STPSpringerton0.02 MGD (million gallons per day)2022
PIERRON EAST STPPierron0.02 MGD (million gallons per day)2022
ELLIS GROVE STPEllis Grove0.02 MGD (million gallons per day)2022
KENNEY STPKenney0.02 MGD (million gallons per day)2022
Patriot WWTPPatriot0.02 MGD (million gallons per day)2022
BIPPUS RSDBippus0.02 MGD (million gallons per day)2022
Brooksburg WWTPMadison0.02 MGD (million gallons per day)2022
High Ridge WWTPDillsboro0.02 MGD (million gallons per day)2022
New Ross WWTPNew Ross0.02 MGD (million gallons per day)2022
ALLERTON NORTH LAGOONAllerton0.02 MGD (million gallons per day)2022
CHESTER WWTPChester0.02 MGD (million gallons per day)2022
DELAWARE STLDelaware0.02 MGD (million gallons per day)2022
GRAND RIVER WWTPGrand River0.02 MGD (million gallons per day)2022
PLEASANT PLAIN WWTPBrighton0.02 MGD (million gallons per day)2022
PORTSMOUTH STLPortsmouth0.02 MGD (million gallons per day)2022
STANLEY STLStanley0.02 MGD (million gallons per day)2022
SWALEDALE STLSwaledale0.02 MGD (million gallons per day)2022
ABBYVILLE WWTPAbbyville0.02 MGD (million gallons per day)2022
MS CO SD 1 (HOME) WWTPHome0.02 MGD (million gallons per day)2022
MUNDEN WWTPMunden0.02 MGD (million gallons per day)2022
MAHASKA WWTPMahaska0.02 MGD (million gallons per day)2022
NARKA WWTPNarka0.02 MGD (million gallons per day)2022
DELIA WWTPDelia0.02 MGD (million gallons per day)2022
HAVENSVILLE WWTPHavensville0.02 MGD (million gallons per day)2022
REDFIELD WWTPRedfield0.02 MGD (million gallons per day)2022
OS CO SD #1 (SAIL-A-WAY) WWTPLyndon0.02 MGD (million gallons per day)2022
WESTPHALIA WWTPWestphalia0.02 MGD (million gallons per day)2022
NEW CAMBRIA WWTPNew Cambria0.02 MGD (million gallons per day)2022
LIEBENTHAL WWTPLiebenthal0.02 MGD (million gallons per day)2022
ALTON WWTPAlton0.02 MGD (million gallons per day)2022
GAYLORD WWTPGaylord0.02 MGD (million gallons per day)2022
PRAIRIE VIEW WWTPPrairie View0.02 MGD (million gallons per day)2022
ALEXANDER WWTPAlexander0.02 MGD (million gallons per day)2022
GARFIELD WWTPGarfield0.02 MGD (million gallons per day)2022
VIRGIL WWTPVirgil0.02 MGD (million gallons per day)2022
Tricia Park Collection System - Avoyelles Parish Police JuryMarksville0.02 MGD (million gallons per day)2022
Moliasion Treatment FacilityVacherie0.02 MGD (million gallons per day)2022
Breaux Estates - Iberia Parish SD 1New Iberia0.02 MGD (million gallons per day)2022
Beau Fleur - IPSD 1New Iberia0.02 MGD (million gallons per day)2022
OAK RIDGE STPOak Ridge0.02 MGD (million gallons per day)2022
POWHATAN STPPowhatan0.02 MGD (million gallons per day)2022
BRAITHWAITE PONDBraithwaite0.02 MGD (million gallons per day)2022
Runnymede WWTPWestminster0.02 MGD (million gallons per day)2022
North Harford High School WWTPPylesville0.02 MGD (million gallons per day)2022
Preserve at Wye MIls WWTPWye Mills0.02 MGD (million gallons per day)2022
Pleasant Valley WWTPWestminster0.02 MGD (million gallons per day)2022
TYLERTON WWTPTylerton0.02 MGD (million gallons per day)2022
Southern MD Prerelease UHughesville0.02 MGD (million gallons per day)2022
Point Lookout State Park WWTPScotland0.02 MGD (million gallons per day)2022
Hyattstown WWTPClarksburg0.02 MGD (million gallons per day)2022
COPPER HARBOR WWTPCopper Harbor0.02 MGD (million gallons per day)2022
Wendell WWTPWendell0.02 MGD (million gallons per day)2022
COMSTOCK WWTPComstock0.02 MGD (million gallons per day)2022
GEORGETOWN WWTPGeorgetown0.02 MGD (million gallons per day)2022
TWIN LAKES WWTPTwin Lakes0.02 MGD (million gallons per day)2022
WARBA WWTPWarba0.02 MGD (million gallons per day)2022
ALPHA STPAlpha0.02 MGD (million gallons per day)2022
ST. LEO WWTPGranite Falls0.02 MGD (million gallons per day)2022
BORUP WWTPBorup0.02 MGD (million gallons per day)2022
PERLEY WWTPPerley0.02 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.