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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
SAUK PRAIRIE SC - STPSauk City0.822 MGD (million gallons per day)2022
Laurinburg_Maxton Airport WWTPMaxton0.821 MGD (million gallons per day)2022
Lake Village WWTPLake Village0.82 MGD (million gallons per day)2022
DONNER SUMMIT WWTFSoda Springs0.82 MGD (million gallons per day)2022
SUMNER WASTEWATERSumner0.82 MGD (million gallons per day)2022
EASTPORT WWTFEastport0.82 MGD (million gallons per day)2022
Los Alamos County White RockLos Alamos0.82 MGD (million gallons per day)2022
Coeymans (T) STP & SewersRavena0.82 MGD (million gallons per day)2022
Akron, (V) WWTP & CollectionAkron0.82 MGD (million gallons per day)2022
Mount Gilead WWTP & Sewer SystemMount Gilead0.82 MGD (million gallons per day)2022
Columbus Grove WWTP & Sewer SystemColumbus Grove0.82 MGD (million gallons per day)2022
ALBIA WWTP NO.Albia0.818 MGD (million gallons per day)2022
ST FRANCIS WWTFSaint Francis0.814 MGD (million gallons per day)2022
Vernon (V) STPVernon0.813 MGD (million gallons per day)2022
NORTH BRANCH MUN WTPNorth Branch0.812 MGD (million gallons per day)2022
Thompson Station Wastewater SystemThompsons Station0.811 MGD (million gallons per day)2022
HEBER WWTFHeber0.81 MGD (million gallons per day)2022
HAUBSTADT WWTPHaubstadt0.81 MGD (million gallons per day)2022
EAST TROY STPEast Troy0.81 MGD (million gallons per day)2022
ARLINGTON WWTPArlington0.807 MGD (million gallons per day)2022
Centralia WWTPCentralia0.806 MGD (million gallons per day)2022
WEST ELIZABETH STPWest Elizabeth0.805 MGD (million gallons per day)2022
WINSTED WWTPWinsted0.802 MGD (million gallons per day)2022
ASHLAND CITY WWTPAshland City0.801 MGD (million gallons per day)2022
ARAB RILEY MAZE CREEK WWTPArab0.8 MGD (million gallons per day)2022
CARBON HILL WWTPCarbon Hill0.8 MGD (million gallons per day)2022
HALEYVILLE SOUTH WWTPHaleyville0.8 MGD (million gallons per day)2022
Livingston LagoonLivingston0.8 MGD (million gallons per day)2022
Luverne LagoonLuverne0.8 MGD (million gallons per day)2022
Wickenburg WWTFWickenburg0.8 MGD (million gallons per day)2022
Goodyear Corgett WRPGoodyear0.8 MGD (million gallons per day)2022
Holbrook WWTFHolbrook0.8 MGD (million gallons per day)2022
Blytheville - North WWTPBlytheville0.8 MGD (million gallons per day)2022
Hope - Pate Creek WWTPHope0.8 MGD (million gallons per day)2022
Danville WWTPDanville0.8 MGD (million gallons per day)2022
ARVIN WWTFArvin0.8 MGD (million gallons per day)2022
Mt. Shasta WWTFMount Shasta0.8 MGD (million gallons per day)2022
BASALT WWTPBasalt0.8 MGD (million gallons per day)2022
Genesee Water & San DistrictGolden0.8 MGD (million gallons per day)2022
GRAND COUNTY #1 WWTPGrand Lake0.8 MGD (million gallons per day)2022
BATTLEMENT MESA STPParachute0.8 MGD (million gallons per day)2022
Georgetown, Town ofGeorgetown0.8 MGD (million gallons per day)2022
LITCHFIELD WPCFBantam0.8 MGD (million gallons per day)2022
STONINGTON-MYSTIC WPCFMystic0.8 MGD (million gallons per day)2022
Ponte Vedra WWTFPonte Vedra Beach0.8 MGD (million gallons per day)2022
Marsh Landing WWTFPonte Vedra0.8 MGD (million gallons per day)2022
McRae-Helena WPCPHelena0.8 MGD (million gallons per day)2022
Baldwin WPCPCornelia0.8 MGD (million gallons per day)2022
Demorest Hazel Creek WPCPDemorest0.8 MGD (million gallons per day)2022
Sparta LASSparta0.8 MGD (million gallons per day)2022
WAILUA WWTFWaialua0.8 MGD (million gallons per day)2022
ELEELE WWTFEleele0.8 MGD (million gallons per day)2022
CHILLICOTHE STPChillicothe0.8 MGD (million gallons per day)2022
MT MORRIS STPMount Morris0.8 MGD (million gallons per day)2022
WinfieldCrown Point0.8 MGD (million gallons per day)2022
CARLISLE WWTPCarlisle0.8 MGD (million gallons per day)2022
ALBANY WWTPAlbany0.8 MGD (million gallons per day)2022
PAOLI WWTPPaoli0.8 MGD (million gallons per day)2022
GUTTENBURG WWTPGuttenberg0.8 MGD (million gallons per day)2022
GODDARD WWTPGoddard0.8 MGD (million gallons per day)2022
CALVERT CITY STPCalvert City0.8 MGD (million gallons per day)2022
TOMPKINSVILLETompkinsville0.8 MGD (million gallons per day)2022
CHURCH POINT STPChurch Point0.8 MGD (million gallons per day)2022
VIDALIA MAIN PONDVidalia0.8 MGD (million gallons per day)2022
ZWOLLE STPZwolle0.8 MGD (million gallons per day)2022
DOVER-FOXCROFT POLLUTION ABATEMENT FACILITYDover Foxcroft0.8 MGD (million gallons per day)2022
FRUITLAND WWTPFruitland0.8 MGD (million gallons per day)2022
Rockport Sewerage Collection System and WWTFRockport0.8 MGD (million gallons per day)2022
MARSHALL STPMarshall0.8 MGD (million gallons per day)2022
MACKINAW CITY WWTPMackinaw City0.8 MGD (million gallons per day)2022
FOWLERVILLE WWSLFowlerville0.8 MGD (million gallons per day)2022
EVELETH WWTFEveleth0.8 MGD (million gallons per day)2022
WATERTOWN WWTPWatertown0.8 MGD (million gallons per day)2022
GRANITE FALLS WWTPGranite Falls0.8 MGD (million gallons per day)2022
MORA WWTPMora0.8 MGD (million gallons per day)2022
BELMONT POTWBelmont0.8 MGD (million gallons per day)2022
Union East STPUnion0.8 MGD (million gallons per day)2022
Algoa Regional WWTFJefferson City0.8 MGD (million gallons per day)2022
Monroe City WWTPMonroe City0.8 MGD (million gallons per day)2022
Cabool WWTPCabool0.8 MGD (million gallons per day)2022
Mountain Grove WWTP EastMountain Grove0.8 MGD (million gallons per day)2022
Mountain Grove WWTP WestMountain Grove0.8 MGD (million gallons per day)2022
SIDNEY WWTFSidney0.8 MGD (million gallons per day)2022
SCHUYLER WWTPSchuyler0.8 MGD (million gallons per day)2022
Warren Township - CS / Stage IV STPWarren0.8 MGD (million gallons per day)2022
Readington-Lebanon SA - STPWhitehouse0.8 MGD (million gallons per day)2022
Harrison Township (Gloucester) - CS/Mullica Hill STPMullica Hill0.8 MGD (million gallons per day)2022
LORDSBURG STPLordsburg0.8 MGD (million gallons per day)2022
Santa Ana, Pueblo ofSan Ysidro0.8 MGD (million gallons per day)2022
Patchogue (V) WWTPPatchogue0.8 MGD (million gallons per day)2022
Rockland (T) Livingston Manor STPLivingston Manor0.8 MGD (million gallons per day)2022
Woodridge (V) - Woodridge STPWoodridge0.8 MGD (million gallons per day)2022
Ellenville (V) WWTPEllenville0.8 MGD (million gallons per day)2022
Tannersville (V) WWTP (NYCDEP owned)Tannersville0.8 MGD (million gallons per day)2022
Camden (V) WWTPCamden0.8 MGD (million gallons per day)2022
Chenango (T) SD #4,8,& 9 Northgate STPBinghamton0.8 MGD (million gallons per day)2022
Waverly (V) WWTPWaverly0.8 MGD (million gallons per day)2022
BURNSVILLE WWTPBurnsville0.8 MGD (million gallons per day)2022
WHITE LAKE WWTPElizabethtown0.8 MGD (million gallons per day)2022
BELVILLE WWTPLeland0.8 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.