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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
Burdette WWTPBurdette0.06 MGD (million gallons per day)2022
Emmet WWTPEmmet0.06 MGD (million gallons per day)2022
Springville Public Utility DistrictSpringville0.06 MGD (million gallons per day)2022
OCEANA MARIN WWTFNovato0.06 MGD (million gallons per day)2022
TRES PINOS WWTFTres Pinos0.06 MGD (million gallons per day)2022
Snelling WWTFSnelling0.06 MGD (million gallons per day)2022
MOKELUMNE HILL WWTFMokelumne Hill0.06 MGD (million gallons per day)2022
Camino Heights Wastewater Treatment PlantPlacerville0.06 MGD (million gallons per day)2022
Florissant WSDFlorissant0.06 MGD (million gallons per day)2022
HILLROSE WWTPHillrose0.06 MGD (million gallons per day)2022
North La Junta SDLa Junta0.06 MGD (million gallons per day)2022
Weld CountyGreeley0.06 MGD (million gallons per day)2022
Empire, Town ofIdaho Springs0.06 MGD (million gallons per day)2022
Will-O-Wisp MDBailey0.06 MGD (million gallons per day)2022
San Juan River Village MDPagosa Springs0.06 MGD (million gallons per day)2022
Swink, Town ofSwink0.06 MGD (million gallons per day)2022
Clearwater MDEnglewood0.06 MGD (million gallons per day)2022
Heritage Place WWTFBartow0.06 MGD (million gallons per day)2022
Collins WPCPCollins0.06 MGD (million gallons per day)2022
Mansfield WPCPMansfield0.06 MGD (million gallons per day)2022
Maysville WPCPMaysville0.06 MGD (million gallons per day)2022
Carlin Bay Wastewater SystemHarrison0.06 MGD (million gallons per day)2022
NOTUS SEWAGE TREATMENT SYSTEMNotus0.06 MGD (million gallons per day)2022
LAST CHANCE/PONDS LODGE STPIsland Park0.06 MGD (million gallons per day)2022
DECLO STPDeclo0.06 MGD (million gallons per day)2022
DOVER S/T FACILITYDover0.06 MGD (million gallons per day)2022
East Cape Girardeau, VillageMc Clure0.06 MGD (million gallons per day)2022
THEBES STPThebes0.06 MGD (million gallons per day)2022
THAYER SEWER & STPThayer0.06 MGD (million gallons per day)2022
EDGEWOOD STPEdgewood0.06 MGD (million gallons per day)2022
JOY STPJoy0.06 MGD (million gallons per day)2022
SIGEL STPSigel0.06 MGD (million gallons per day)2022
STRASBURG STPStrasburg0.06 MGD (million gallons per day)2022
ENFIELD EAST LAGOONEnfield0.06 MGD (million gallons per day)2022
CUTLER STPCutler0.06 MGD (million gallons per day)2022
APPLE RIVER STPApple River0.06 MGD (million gallons per day)2022
BELLMONT STPBellmont0.06 MGD (million gallons per day)2022
ALLENDALE NORTH STPAllendale0.06 MGD (million gallons per day)2022
VICTORIA STPVictoria0.06 MGD (million gallons per day)2022
ARENZVILLE STPArenzville0.06 MGD (million gallons per day)2022
HOFFMAN STPHoffman0.06 MGD (million gallons per day)2022
BARTELSO STPBartelso0.06 MGD (million gallons per day)2022
DAMIANSVILLEDamiansville0.06 MGD (million gallons per day)2022
ORANGEVILLE WWTPOrangeville0.06 MGD (million gallons per day)2022
GOOD HOPE STPGood Hope0.06 MGD (million gallons per day)2022
PRAIRIE CITY STWPrairie City0.06 MGD (million gallons per day)2022
ELIZABETH TOWN STPElizabethtown0.06 MGD (million gallons per day)2022
CAVE IN ROCK STPCave In Rock0.06 MGD (million gallons per day)2022
Morgan County RSD - WaverlyMartinsville0.06 MGD (million gallons per day)2022
Ninestar ConnectGreenfield0.06 MGD (million gallons per day)2022
Lake Dalecarlia RWDLowell0.06 MGD (million gallons per day)2022
DANA WWTPDana0.06 MGD (million gallons per day)2022
KEWANNA STPKewanna0.06 MGD (million gallons per day)2022
BRUCEVILLE STPBruceville0.06 MGD (million gallons per day)2022
DENVER WWTPDenver0.06 MGD (million gallons per day)2022
Pigeon Township RSDDale0.06 MGD (million gallons per day)2022
Harrison County RSDNew Salisbury0.06 MGD (million gallons per day)2022
Metamora RSDMetamora0.06 MGD (million gallons per day)2022
AINSWORTH WWTPAinsworth0.06 MGD (million gallons per day)2022
ALTA VISTA WWTPAlta Vista0.06 MGD (million gallons per day)2022
BENNETT STLBennett0.06 MGD (million gallons per day)2022
GRANDVIEW WWTPGrandview0.06 MGD (million gallons per day)2022
MARBLE ROCK WWTPMarble Rock0.06 MGD (million gallons per day)2022
LA MOTTE STPLa Motte0.06 MGD (million gallons per day)2022
MAPLE HILL WWTPMaple Hill0.06 MGD (million gallons per day)2022
LITTLE RIVER WWTPLittle River0.06 MGD (million gallons per day)2022
BURR OAK WWTPBurr Oak0.06 MGD (million gallons per day)2022
HARVEYVILLE WWTPHarveyville0.06 MGD (million gallons per day)2022
MCCUNE WWTPMc Cune0.06 MGD (million gallons per day)2022
ASSARIA WWTPAssaria0.06 MGD (million gallons per day)2022
INGALLS WWTPIngalls0.06 MGD (million gallons per day)2022
ALTOONA WWTPAltoona0.06 MGD (million gallons per day)2022
LV CO S D #1 WWTPLeavenworth0.06 MGD (million gallons per day)2022
MSD -OCEA Country Village WWTPCrestwood0.06 MGD (million gallons per day)2022
E. COLUMBIA SD #1Columbia0.06 MGD (million gallons per day)2022
EAST HODGE STPHodge0.06 MGD (million gallons per day)2022
DELTA STPDelta0.06 MGD (million gallons per day)2022
CLARENCE WWCTSClarence0.06 MGD (million gallons per day)2022
DIXIE INN STPMinden0.06 MGD (million gallons per day)2022
PENNY ACRES SUBDIVISIONAlexandria0.06 MGD (million gallons per day)2022
Bossier Parish SD #1Benton0.06 MGD (million gallons per day)2022
College of Southern Maryland WWTPLa Plata0.06 MGD (million gallons per day)2022
KENNEDYVILLE STPKennedyville0.06 MGD (million gallons per day)2022
SWALLOW FALLS STATE PARKOakland0.06 MGD (million gallons per day)2022
Elk Neck State ParkNorth East0.06 MGD (million gallons per day)2022
MULLIKEN WWTPMulliken0.06 MGD (million gallons per day)2022
CASNOVIA WWSLCasnovia0.06 MGD (million gallons per day)2022
MINDEN CITY STPMinden City0.06 MGD (million gallons per day)2022
WATERSMEET TWP WWTPWatersmeet0.06 MGD (million gallons per day)2022
WALDRON STPWaldron0.06 MGD (million gallons per day)2022
HONOR STPHonor0.06 MGD (million gallons per day)2022
CLAYTON LAGOONClayton0.06 MGD (million gallons per day)2022
WALDRON WWSLWaldron0.06 MGD (million gallons per day)2022
KENSINGTON WWTFKensington0.06 MGD (million gallons per day)2022
WOOD LAKE WWTPWood Lake0.06 MGD (million gallons per day)2022
AUDOBON WWTPAudubon0.06 MGD (million gallons per day)2022
LEWISVILLE WWTPLewisville0.06 MGD (million gallons per day)2022
WILLIAMS WWTPWilliams0.06 MGD (million gallons per day)2022
SANBORN WWTPSanborn0.06 MGD (million gallons per day)2022
GEM Sanitary DistrictGreenwald0.06 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.