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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in United States · New York

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605 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

605 results

CompareNameNative sizeYear
Florida (V) WWTP & Collection SystemFlorida0.45 MGD (million gallons per day)2022
Webb (T) Old Forge SD STP and SewersOld Forge0.45 MGD (million gallons per day)2022
Adams (V) WWTPAdams0.45 MGD (million gallons per day)2022
Heuvelton (V) STPHeuvelton0.45 MGD (million gallons per day)2022
Greene (V) STPGreene0.45 MGD (million gallons per day)2022
Central Square (V) WWTPCentral Square0.45 MGD (million gallons per day)2022
Holley (V) WWTPHolley0.45 MGD (million gallons per day)2022
Windham (T) WWTP & Collection SystemWindham0.445 MGD (million gallons per day)2022
East Fishkill (T) Sagamore SD WWTPHopewell Junction0.44 MGD (million gallons per day)2022
Warwick (T) SD#1-Wickham Lake WWTPWarwick0.43 MGD (million gallons per day)2022
Liberty (T) Swan Lake S.D.Liberty0.43 MGD (million gallons per day)2022
Sharon Springs (V) WWTPSharon Springs0.43 MGD (million gallons per day)2022
Norwood (V) STPNorwood0.43 MGD (million gallons per day)2022
Sherburne (V) STPSherburne0.427 MGD (million gallons per day)2022
Saugerties (T) Glasco STPGlasco0.424 MGD (million gallons per day)2022
Altamont (V) STPAltamont0.42 MGD (million gallons per day)2022
Thompson (T) Emerald Green SD & WWTPMonticello0.41 MGD (million gallons per day)2022
Ausable (T) Keeseville WWTPKeeseville0.4 MGD (million gallons per day)2022
Suffolk (Co) SCSD #2 Tallmadge Woods STPMiller Place0.4 MGD (million gallons per day)2022
Suffolk (Co) SCSD #7 Medford-W. STPMedford0.4 MGD (million gallons per day)2022
Suffolk (Co) SCSD #13 Windwatch STPHauppauge0.4 MGD (million gallons per day)2022
Tuxedo Park (V) WWTPTuxedo Park0.4 MGD (million gallons per day)2022
Athens (V) Main STPAthens0.4 MGD (million gallons per day)2022
Margaretville (V) STP (NYCDEP)Margaretville0.4 MGD (million gallons per day)2022
Deposit (V) STPDeposit0.4 MGD (million gallons per day)2022
Dryden (V) STPDryden0.4 MGD (million gallons per day)2022
Clyde (V) WWTPClyde0.4 MGD (million gallons per day)2022
Bolivar (V) WWTPBolivar0.4 MGD (million gallons per day)2022
Ripley (T) WWTPRipley0.4 MGD (million gallons per day)2022
Sodus (V) WWTPSodus0.383 MGD (million gallons per day)2022
Marcellus (V) STPMarcellus0.38 MGD (million gallons per day)2022
Guilderland (T) NE Ind. Park STPGuilderland0.36 MGD (million gallons per day)2022
Hancock (V) WWTPHancock0.35 MGD (million gallons per day)2022
Schroon (T) WPCP & San SewersSchroon Lake0.35 MGD (million gallons per day)2022
Groton (V) WWTPGroton0.35 MGD (million gallons per day)2022
Wayland (V) STPWayland0.35 MGD (million gallons per day)2022
Suffolk (Co) SCSD #26 Greens at Half Hollow STPMelville0.33 MGD (million gallons per day)2022
Union Springs (V) STPUnion Springs0.33 MGD (million gallons per day)2022
Hunter (V) Sewers & WWTPHunter0.326 MGD (million gallons per day)2022
Bloomingburg (V) STPBloomingburg0.325 MGD (million gallons per day)2022
Schoharie (V) STPSchoharie0.325 MGD (million gallons per day)2022
Bloomfield (V) STPBloomfield0.323 MGD (million gallons per day)2022
Bainbridge (V) STPBainbridge0.318 MGD (million gallons per day)2022
Phelps (V) WWTPPhelps0.304 MGD (million gallons per day)2022
Suffolk (Co) SCSD #20W Leisure Village WWTPRidge0.3 MGD (million gallons per day)2022
Crawford (T) Pine Bush WWTPPine Bush0.3 MGD (million gallons per day)2022
Carmel (T) Mahopac STP (NYCDEP)Carmel0.3 MGD (million gallons per day)2022
Bolton (T) STP & SewersBolton Landing0.3 MGD (million gallons per day)2022
Speculator (V) STPSpeculator0.3 MGD (million gallons per day)2022
Waterville (V) WWTPWaterville0.3 MGD (million gallons per day)2022
Aurora (V) WWTPAurora0.3 MGD (million gallons per day)2022
Mexico (V) STPMexico0.3 MGD (million gallons per day)2022
Dundee (V) STPDundee0.3 MGD (million gallons per day)2022
York (T) Retsof SD STP & SewersYork0.3 MGD (million gallons per day)2022
Friendship (T) WWTPFriendship0.286 MGD (million gallons per day)2022
Port Byron (V) WWTPPort Byron0.285 MGD (million gallons per day)2022
Pawling (V) WWTPPawling0.28 MGD (million gallons per day)2022
Caneadea (T) Houghton SD STPHoughton0.28 MGD (million gallons per day)2022
Somerset (T) Barker WWTP & SewersBarker0.28 MGD (million gallons per day)2022
Rhinebeck (V) WWTP & Collection SystemRhinebeck0.26 MGD (million gallons per day)2022
Ashland, (T) Hamlet WWTP & SewersAshland0.26 MGD (million gallons per day)2022
Schuylerville (V) STPSchuylerville0.26 MGD (million gallons per day)2022
Waddington (V) WWTP & SewersWaddington0.26 MGD (million gallons per day)2022
Carrollton (T) Limestone WWTPLimestone0.25 MGD (million gallons per day)2022
Suffolk (Co) SCSD #16 Yaphank STPYaphank0.25 MGD (million gallons per day)2022
Sag Harbor (V) WWTPSag Harbor0.25 MGD (million gallons per day)2022
Millbrook (V) WWTPMillbrook0.25 MGD (million gallons per day)2022
Philmont (V) STPPhilmont0.25 MGD (million gallons per day)2022
Valatie (V) WWTP & Collection SystemValatie0.25 MGD (million gallons per day)2022
Warrensburg (T) STP & SewersWarrensburg0.25 MGD (million gallons per day)2022
Dexter (V) WWTPDexter0.25 MGD (million gallons per day)2022
Hastings (T) F. Brewerton SD STPCentral Square0.25 MGD (million gallons per day)2022
Trumansburg (V) WWTPTrumansburg0.25 MGD (million gallons per day)2022
Brewster (V) WWTP (NYC DEP owner)Brewster0.24 MGD (million gallons per day)2022
Castleton-on-Hudson (V) STPCastleton On Hudson0.24 MGD (million gallons per day)2022
Suffolk (Co) SCSD #5 Strathmore Huntington STPDeer Park0.236 MGD (million gallons per day)2022
Woodstock (T) WWTP & Collection SystemWoodstock0.23 MGD (million gallons per day)2022
Tully (V) STPTully0.226 MGD (million gallons per day)2022
Dutchess Co, Dalton Farms WWTPPoughquag0.216 MGD (million gallons per day)2022
Cochecton (T) - Lake Huntington STPLake Huntington0.21 MGD (million gallons per day)2022
Bergen (V) WWTPBergen0.21 MGD (million gallons per day)2022
Suffolk (Co) SCSD #22 Hauppauge STP & SewersHauppauge0.202 MGD (million gallons per day)2022
Carmel (T) SD#4 STP - Lake SecorMahopac0.2 MGD (million gallons per day)2022
Rockland (T) Roscoe STPRoscoe0.2 MGD (million gallons per day)2022
Hobart (V) WWTPHobart0.2 MGD (million gallons per day)2022
Richmondville (V) STPRichmondville0.2 MGD (million gallons per day)2022
Philadelphia (V) WWTPPhiladelphia0.2 MGD (million gallons per day)2022
Brasher (T) STP and SewersBrasher Falls0.2 MGD (million gallons per day)2022
Oxford (V) STPOxford0.2 MGD (million gallons per day)2022
Marathon (V) WWTP & Collection SystemMarathon0.2 MGD (million gallons per day)2022
Minetto (T) WWTP & SewersMinetto0.2 MGD (million gallons per day)2022
Lima (V) WWTPLima0.2 MGD (million gallons per day)2022
Nunda (V) WWTPNunda0.2 MGD (million gallons per day)2022
South Corning (V) STP and SewersCorning0.2 MGD (million gallons per day)2022
Orleans (T) Joint STP FacilityAlexandria Bay0.197 MGD (million gallons per day)2022
Orleans, (T) WWTP & Thousand Island Park SDThousand Island Park0.19 MGD (million gallons per day)2022
Shandaken (T) Phoenicia & town-widePhoenicia0.185 MGD (million gallons per day)2022
Little Valley (V) WWTPLittle Valley0.185 MGD (million gallons per day)2022
Suffolk (Co) SCSD #12 Birchwood/HolbrookFarmingville0.18 MGD (million gallons per day)2022
Neversink (T) Grahamsville STP (NYCDEP)Grahamsville0.18 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.