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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
OOLITIC WWTPOolitic0.35 MGD (million gallons per day)2022
TRI LAKES RSD WWTPColumbia City0.35 MGD (million gallons per day)2022
Nature Works CDValparaiso0.35 MGD (million gallons per day)2022
ANITA STLAnita0.35 MGD (million gallons per day)2022
APLINGTON WWTPAplington0.35 MGD (million gallons per day)2022
BOYDEN WWTPBoyden0.35 MGD (million gallons per day)2022
MEDICINE LODGE WWTPMedicine Lodge0.35 MGD (million gallons per day)2022
HUGOTON WWTPHugoton0.35 MGD (million gallons per day)2022
OBERLIN WWTPOberlin0.35 MGD (million gallons per day)2022
CANEY WWTPCaney0.35 MGD (million gallons per day)2022
AUBURNAuburn0.35 MGD (million gallons per day)2022
CARLISLE STPCarlisle0.35 MGD (million gallons per day)2022
CLINTON STPClinton0.35 MGD (million gallons per day)2022
LEBANON JUNCTION STPLebanon Junction0.35 MGD (million gallons per day)2022
OLIVE HILLOlive Hill0.35 MGD (million gallons per day)2022
GLENMORA SEWERAGE SYSTEMGlenmora0.35 MGD (million gallons per day)2022
WOODWORTH WWTPWoodworth0.35 MGD (million gallons per day)2022
DELCAMBRE STPDelcambre0.35 MGD (million gallons per day)2022
WHITE CASTLE STPWhite Castle0.35 MGD (million gallons per day)2022
LOCKPORT STPLockport0.35 MGD (million gallons per day)2022
VEAZIE STPVeazie0.35 MGD (million gallons per day)2022
Greater LIMESTONE Regional WWTFLimestone0.35 MGD (million gallons per day)2022
Leicester Sewerage Collection System and WPCFLeicester0.35 MGD (million gallons per day)2022
Orleans Sewerage Collection System and WWTFOrleans0.35 MGD (million gallons per day)2022
SARANAC STPSaranac0.35 MGD (million gallons per day)2022
ARMADA WWTPArmada0.35 MGD (million gallons per day)2022
REED CITY STPReed City0.35 MGD (million gallons per day)2022
HARTFORD STPHartford0.35 MGD (million gallons per day)2022
GAYLORD SEWAGE LAGOONSGaylord0.35 MGD (million gallons per day)2022
BARAGA STPBaraga0.35 MGD (million gallons per day)2022
VERMILLION WWTPVermillion0.35 MGD (million gallons per day)2022
MOUNTAIN WWTPMountain Lake0.35 MGD (million gallons per day)2022
LEWISTON WWTPLewiston0.35 MGD (million gallons per day)2022
STARBUCK WWTPStarbuck0.35 MGD (million gallons per day)2022
KASSON WWTFKasson0.35 MGD (million gallons per day)2022
Traditions WWTP Harrison County Utility AuthoritySaucier0.35 MGD (million gallons per day)2022
TYLERTOWN POTWTylertown0.35 MGD (million gallons per day)2022
Clarkton WWTPClarkton0.35 MGD (million gallons per day)2022
Bernie WWTPBernie0.35 MGD (million gallons per day)2022
Piedmont WWTPPiedmont0.35 MGD (million gallons per day)2022
Farmington WWTFFarmington0.35 MGD (million gallons per day)2022
Swedesboro Borough CS/ STPSwedesboro0.35 MGD (million gallons per day)2022
Delaware Township MUA- CS/ISDS/STPSergeantsville0.35 MGD (million gallons per day)2022
Santa Rosa, City of, Wastewater Treatment PlantSanta Rosa0.35 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
DOBSON WWTPDobson0.35 MGD (million gallons per day)2022
RUGBY WASTEWATERRugby0.35 MGD (million gallons per day)2022
Stryker WWTP & Sewer SystemStryker0.35 MGD (million gallons per day)2022
Camden WWTP & Sewer SystemCamden0.35 MGD (million gallons per day)2022
New Knoxville WWTP & Sewer SystemNew Knoxville0.35 MGD (million gallons per day)2022
CALERA PWA WWTCalera0.35 MGD (million gallons per day)2022
SAYRE WWTSayre0.35 MGD (million gallons per day)2022
GOLD HILL STPGold Hill0.35 MGD (million gallons per day)2022
SHOEMAKERSVILLE SEW. FAC.Shoemakersville0.35 MGD (million gallons per day)2022
FREEPORT BORO STPFreeport0.35 MGD (million gallons per day)2022
McCamey WWTPMc Camey0.35 MGD (million gallons per day)2022
West Harris Co MUD # 15 WWTPHouston0.35 MGD (million gallons per day)2022
La Joya WWTPLa Joya0.35 MGD (million gallons per day)2022
Ganado WWTPGanado0.35 MGD (million gallons per day)2022
Goliad WWTPGoliad0.35 MGD (million gallons per day)2022
Houston Area Development Corp WWTPHouston0.35 MGD (million gallons per day)2022
Mart WWTPMart0.35 MGD (million gallons per day)2022
Throckmorton Creek WWTPAnna0.35 MGD (million gallons per day)2022
Pottsboro WWTPPottsboro0.35 MGD (million gallons per day)2022
DeKalb South WWTPDe Kalb0.35 MGD (million gallons per day)2022
HUNTINGTON WWTPHuntington0.35 MGD (million gallons per day)2022
Vicksburg WWTPMissouri City0.35 MGD (million gallons per day)2022
Barkers Ridge WWTPHouston0.35 MGD (million gallons per day)2022
Comfort WWTPComfort0.35 MGD (million gallons per day)2022
Camp Swift WWTPBastrop0.35 MGD (million gallons per day)2022
Mason WWTPMason0.35 MGD (million gallons per day)2022
LAKEPOINT IDMagna0.35 MGD (million gallons per day)2022
COALVILLECoalville0.35 MGD (million gallons per day)2022
TAPPAHANNOCK STPTappahannock0.35 MGD (million gallons per day)2022
THORNBURG REG. STPWoodford0.35 MGD (million gallons per day)2022
FORKS TREAT STPForks0.35 MGD (million gallons per day)2022
BINGEN POTWBingen0.35 MGD (million gallons per day)2022
BELLE WWTPBelle0.35 MGD (million gallons per day)2022
PRATT WWTPPratt0.35 MGD (million gallons per day)2022
MATEWAN WWTPMatewan0.35 MGD (million gallons per day)2022
PUTNAM PSD - HOMETOWN WWTPHometown0.35 MGD (million gallons per day)2022
SOPHIA WWTPSophia0.35 MGD (million gallons per day)2022
PENNSBORO WWTPPennsboro0.35 MGD (million gallons per day)2022
DOUSMAN WWTPDousman0.35 MGD (million gallons per day)2022
GLENROCK LAGOONGlenrock0.35 MGD (million gallons per day)2022
LUNA PIER STP-CSLuna Pier0.348 MGD (million gallons per day)2022
WINTHROP WWTPWinthrop0.348 MGD (million gallons per day)2022
BAKER, CITY OF - WWTPBaker0.348 MGD (million gallons per day)2022
GRISWOLD WWTPGriswold0.347 MGD (million gallons per day)2022
TDCJ Lynaugh Prison UnitBowie0.347 MGD (million gallons per day)2022
BELLEVILLE STPBelleville0.346 MGD (million gallons per day)2022
WEST TERRE HAUTE WWTPWest Terre Haute0.345 MGD (million gallons per day)2022
STERLING WWTPSterling0.345 MGD (million gallons per day)2022
BRAHAM WWTFBraham0.345 MGD (million gallons per day)2022
Chauncey WWTP & Sewer SystemChauncey0.345 MGD (million gallons per day)2022
Pomeroy WWTP & Sewer SystemPomeroy0.345 MGD (million gallons per day)2022
Onion Creek WRPAustin0.345 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.