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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
NOBLE WWTNoble0.76 MGD (million gallons per day)2022
North Mission Glen WWTPHouston0.76 MGD (million gallons per day)2022
Harris Co MUD #230 WWTPHouston0.76 MGD (million gallons per day)2022
ROCK VALLEY WWTPRock Valley0.753 MGD (million gallons per day)2022
LOXLEY LAGOONLoxley0.75 MGD (million gallons per day)2022
STEVENSON WWTPStevenson0.75 MGD (million gallons per day)2022
DADEVILLE WWTPDadeville0.75 MGD (million gallons per day)2022
MOODY-GUSC-David Treadwell WWTPMoody0.75 MGD (million gallons per day)2022
Barrow WWTPBarrow0.75 MGD (million gallons per day)2022
Prescott Hassayampa WRPPrescott0.75 MGD (million gallons per day)2022
South Grand Canyon Sanitary District Tusayan WWTPGrand Canyon0.75 MGD (million gallons per day)2022
Goodyear Rainbow Valley WRFGoodyear0.75 MGD (million gallons per day)2022
Superior WWTFSuperior0.75 MGD (million gallons per day)2022
Yellville WWTPYellville0.75 MGD (million gallons per day)2022
EATON WWTPEaton0.75 MGD (million gallons per day)2022
HAYDENHayden0.75 MGD (million gallons per day)2022
SILT, Town ofSilt0.75 MGD (million gallons per day)2022
Crested Butte, Town ofCrested Butte0.75 MGD (million gallons per day)2022
Winter Park Estates WWTPWinter Park0.75 MGD (million gallons per day)2022
Harbor Road WWTFGreen Cove Springs0.75 MGD (million gallons per day)2022
LABELLE WWTFLabelle0.75 MGD (million gallons per day)2022
MULBERRY STPMulberry0.75 MGD (million gallons per day)2022
Hernando County Ridge Manor WWTFBrooksville0.75 MGD (million gallons per day)2022
Hampton Creek WRFCumming0.75 MGD (million gallons per day)2022
Spout Springs WRFFlowery Branch0.75 MGD (million gallons per day)2022
Vienna South WPCP LASVienna0.75 MGD (million gallons per day)2022
Clarkesville WPCPClarkesville0.75 MGD (million gallons per day)2022
Cleveland WWTPCleveland0.75 MGD (million gallons per day)2022
Oglethorpe WPCPOglethorpe0.75 MGD (million gallons per day)2022
SULLIVAN STPSullivan0.75 MGD (million gallons per day)2022
TUSCOLA STW. SOUTHTuscola0.75 MGD (million gallons per day)2022
CICERO WWTPCicero0.75 MGD (million gallons per day)2022
NEW WHITELAND WWTPWhiteland0.75 MGD (million gallons per day)2022
FOWLER WWTPFowler0.75 MGD (million gallons per day)2022
BRISTOL WWTPBristol0.75 MGD (million gallons per day)2022
HANOVER WWTPHanover0.75 MGD (million gallons per day)2022
Lagrange County RUD - Region BLagrange0.75 MGD (million gallons per day)2022
LAKE MILLS WWTPLake Mills0.75 MGD (million gallons per day)2022
NORA SPRINGSNora Springs0.75 MGD (million gallons per day)2022
KINGMAN WWTPKingman0.75 MGD (million gallons per day)2022
SABETHA WWTPSabetha0.75 MGD (million gallons per day)2022
WAMEGO WWTPWamego0.75 MGD (million gallons per day)2022
TONGANOXIE WWTPTonganoxie0.75 MGD (million gallons per day)2022
NORTONVILLE WWTPNortonville0.75 MGD (million gallons per day)2022
GREENSBURG STPGreensburg0.75 MGD (million gallons per day)2022
JACKSON STP & CSJackson0.75 MGD (million gallons per day)2022
LOUISA STPLouisa0.75 MGD (million gallons per day)2022
MIDWAYMidway0.75 MGD (million gallons per day)2022
PRESTONSBURGPrestonsburg0.75 MGD (million gallons per day)2022
SIMPSONVILLE STPSimpsonville0.75 MGD (million gallons per day)2022
TAYLORSVILLETaylorsville0.75 MGD (million gallons per day)2022
NEW LLANO SEWERAGE FACILINewllano0.75 MGD (million gallons per day)2022
SCOTT STPScott0.75 MGD (million gallons per day)2022
MANSFIELD STPMansfield0.75 MGD (million gallons per day)2022
LAKE ARTHUR WWSSLake Arthur0.75 MGD (million gallons per day)2022
BALL STPBall0.75 MGD (million gallons per day)2022
MANY STPMany0.75 MGD (million gallons per day)2022
STATE PENITNETIARY PONDAngola0.75 MGD (million gallons per day)2022
KENNEBUNK STPKennebunk0.75 MGD (million gallons per day)2022
FREEPORT WWTFFreeport0.75 MGD (million gallons per day)2022
CALAIS WWTFCalais0.75 MGD (million gallons per day)2022
FEDERALSBURG WWTFFederalsburg0.75 MGD (million gallons per day)2022
EMMITSBURG WWTPEmmitsburg0.75 MGD (million gallons per day)2022
Berlin WWTPBerlin0.75 MGD (million gallons per day)2022
POOLESVILLE STPPoolesville0.75 MGD (million gallons per day)2022
Edgartown Sewerage Collection System and WWTFEdgartown0.75 MGD (million gallons per day)2022
PINE CITY WWTPPine City0.75 MGD (million gallons per day)2022
WADENA WWTPWadena0.75 MGD (million gallons per day)2022
Peculiar WWTPPeculiar0.75 MGD (million gallons per day)2022
Richmond N WWTPRichmond0.75 MGD (million gallons per day)2022
Lexington WWTPLexington0.75 MGD (million gallons per day)2022
Lincoln County PWSD #1 WWTPWinfield0.75 MGD (million gallons per day)2022
Louisiana WWTPLouisiana0.75 MGD (million gallons per day)2022
DILLON WWTPDillon0.75 MGD (million gallons per day)2022
OGALLALA WWTP #1Ogallala0.75 MGD (million gallons per day)2022
Gorham WWTFGorham0.75 MGD (million gallons per day)2022
Penns Grove Borough SA - CS/STPPenns Grove0.75 MGD (million gallons per day)2022
Bloomfield, City ofBloomfield0.75 MGD (million gallons per day)2022
Chaparral CDP WWTPChaparral0.75 MGD (million gallons per day)2022
Lyons (T) WWTPLyons0.75 MGD (million gallons per day)2022
Fishkill (T) Rombout SD & WWTPFishkill0.75 MGD (million gallons per day)2022
Montgomery (V) Sewers & WWTPMontgomery0.75 MGD (million gallons per day)2022
Alexandria Bay (V) STPAlexandria Bay0.75 MGD (million gallons per day)2022
Lyons (V) WWTPLyons0.75 MGD (million gallons per day)2022
Franklinville (V) WWTPFranklinville0.75 MGD (million gallons per day)2022
PITTSBORO WWTPPittsboro0.75 MGD (million gallons per day)2022
LA GRANGE WWTPLa Grange0.75 MGD (million gallons per day)2022
Norwood WWTPNorwood0.75 MGD (million gallons per day)2022
Tuscarawas Co Wilkshire Hills WWTPBolivar0.75 MGD (million gallons per day)2022
Versailles WWTP & Sewer SystemVersailles0.75 MGD (million gallons per day)2022
Belmont Co Fox Shannon WWTPSaint Clairsville0.75 MGD (million gallons per day)2022
Covington WWTP & Sewer SystemCovington0.75 MGD (million gallons per day)2022
Glendale WWTP & Sewer SystemCincinnati0.75 MGD (million gallons per day)2022
Fairfield Co Little Walnut SycamoreLancaster0.75 MGD (million gallons per day)2022
Plain City WWTP & Sewer SystemPlain City0.75 MGD (million gallons per day)2022
Wellington WWTP & Sewer SystemWellington0.75 MGD (million gallons per day)2022
WYNNEWOOD WWTWynnewood0.75 MGD (million gallons per day)2022
MADILL PWA WWTMadill0.75 MGD (million gallons per day)2022
GOLD BEACH STPGold Beach0.75 MGD (million gallons per day)2022
NESKOWIN REGIONAL SANITARY AUTHORTNeskowin0.75 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.