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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
CASS CITY STPCass City1 MGD (million gallons per day)2022
GLADSTONE STPGladstone1 MGD (million gallons per day)2022
ROGERS CITY STPRogers City1 MGD (million gallons per day)2022
BOYNE CITY STPBoyne City1 MGD (million gallons per day)2022
MARINE CITY STPMarine City1 MGD (million gallons per day)2022
HASTINGS STPHastings1 MGD (million gallons per day)2022
SAUGATUCK WWTPSaugatuck1 MGD (million gallons per day)2022
CHARLEVOIX STPCharlevoix1 MGD (million gallons per day)2022
MANISTEE STPManistee1 MGD (million gallons per day)2022
KOSCIUSKO POTW, SOUTHKosciusko1 MGD (million gallons per day)2022
Stone County Utility Authority Wiggins Regional WWTFWiggins1 MGD (million gallons per day)2022
Brookfield WWTPBrookfield1 MGD (million gallons per day)2022
Rolla SW WWTPRolla1 MGD (million gallons per day)2022
Odessa SE WWTFOdessa1 MGD (million gallons per day)2022
Odessa NW WWTPOdessa1 MGD (million gallons per day)2022
Eldon Treatment PlantEldon1 MGD (million gallons per day)2022
St. Robert WWTPSaint Robert1 MGD (million gallons per day)2022
Savannah WWTPSavannah1 MGD (million gallons per day)2022
Caruthersville WWTPCaruthersville1 MGD (million gallons per day)2022
Elk Valley WWTFOzark1 MGD (million gallons per day)2022
St. James WWTPSaint James1 MGD (million gallons per day)2022
BELGRADE LAGOONSBelgrade1 MGD (million gallons per day)2022
ANACONDA Deer Lodge CountyAnaconda1 MGD (million gallons per day)2022
DEER LODGE WWTPDeer Lodge1 MGD (million gallons per day)2022
HAMILTON WWTPHamilton1 MGD (million gallons per day)2022
NEBRASKA CITY WWTPNebraska City1 MGD (million gallons per day)2022
PLATTSMOUTH WWTPPlattsmouth1 MGD (million gallons per day)2022
SIDNEY WWTPSidney1 MGD (million gallons per day)2022
Willow Creek Lyon WWTPDayton1 MGD (million gallons per day)2022
WEST WENDOVER WRFWest Wendover1 MGD (million gallons per day)2022
Hightstown Borough - CS/STPHightstown1 MGD (million gallons per day)2022
Greenwich Township (GCUA) - CS/Gibbstown STPGibbstown1 MGD (million gallons per day)2022
Beverly City SA - CS/STPBeverly1 MGD (million gallons per day)2022
Riverside Township - CS/STPDelran1 MGD (million gallons per day)2022
MORIARTY, CITY OFMoriarty1 MGD (million gallons per day)2022
Sunland Park, Camino Real RUA North WWTPSunland Park1 MGD (million gallons per day)2022
SHIPROCK STPShiprock1 MGD (million gallons per day)2022
BERNALILLO STPBernalillo1 MGD (million gallons per day)2022
BELEN DISPOSAL PLANTBelen1 MGD (million gallons per day)2022
Village of Bosque FarmsBosque Farms1 MGD (million gallons per day)2022
Angel Fire, Village ofAngel Fire1 MGD (million gallons per day)2022
Suffolk (Co) SCSD #27 Forge RiverMastic Beach1 MGD (million gallons per day)2022
Cedarhurst, (V) WWTP & CollectionCedarhurst1 MGD (million gallons per day)2022
Warwick (V) WWTP & Collection SystemWarwick1 MGD (million gallons per day)2022
Stony Point (T) STPStony Point1 MGD (million gallons per day)2022
Fallsburg (T)- Loch Sheldrake STPLoch Sheldrake1 MGD (million gallons per day)2022
Montgomery (Co) SD#1 STPNelliston1 MGD (million gallons per day)2022
Delhi (V) WWTPDelhi1 MGD (million gallons per day)2022
Dolgeville (V) WWTPDolgeville1 MGD (million gallons per day)2022
Owego (V) STPOwego1 MGD (million gallons per day)2022
Le Roy (V) WWTPLe Roy1 MGD (million gallons per day)2022
Avon (V) WWTPAvon1 MGD (million gallons per day)2022
Bath (V) WWTP and SewersBath1 MGD (million gallons per day)2022
Ontario (T) WWTPOntario1 MGD (million gallons per day)2022
Southeast WWTPJacksonville1 MGD (million gallons per day)2022
MAIDEN WWTPMaiden1 MGD (million gallons per day)2022
CHADBOURN WWTPChadbourn1 MGD (million gallons per day)2022
ENFIELD WWTPEnfield1 MGD (million gallons per day)2022
MAGGIE VALLEY S.D. WWTPMaggie Valley1 MGD (million gallons per day)2022
HAMLET WWTPHamlet1 MGD (million gallons per day)2022
FUQUAY VARINA (TERRIBLE CRK) WWTPFuquay Varina1 MGD (million gallons per day)2022
VALLEY CITY WASTEWATERValley City1 MGD (million gallons per day)2022
Wellsville WWTP & Sewer SystemWellsville1 MGD (million gallons per day)2022
Montpelier WWTP & Sewer SystemMontpelier1 MGD (million gallons per day)2022
Byesville John R. Smalley WWTP & Sewer SystemByesville1 MGD (million gallons per day)2022
Chagrin Falls WWTP & Sewer SystemChagrin Falls1 MGD (million gallons per day)2022
Mahoning Co Craig Beach WWTPLake Milton1 MGD (million gallons per day)2022
Middlefield WWTP & Sewer SystemMiddlefield1 MGD (million gallons per day)2022
Navarre WWTP & Sewer SystemNavarre1 MGD (million gallons per day)2022
New Carlisle WWTP & Sewer SystemNew Carlisle1 MGD (million gallons per day)2022
North Royalton WW District BNorth Royalton1 MGD (million gallons per day)2022
Toronto WWTP & Sewer SystemToronto1 MGD (million gallons per day)2022
Union WWTP & Sewer SystemEnglewood1 MGD (million gallons per day)2022
BROKEN BOW PWA WWTBroken Bow1 MGD (million gallons per day)2022
HOOD RIVER STPHood River1 MGD (million gallons per day)2022
WARRENTON STPWarrenton1 MGD (million gallons per day)2022
BIRDSBORO STPBirdsboro1 MGD (million gallons per day)2022
MANHEIM BORO STPManheim1 MGD (million gallons per day)2022
MINERSVILLE STPMinersville1 MGD (million gallons per day)2022
DEER LAKE MUN AUTHOrwigsburg1 MGD (million gallons per day)2022
MANSFIELD BORO STPMansfield1 MGD (million gallons per day)2022
LITTLESTOWN BORO STPLittlestown1 MGD (million gallons per day)2022
PORTAGE AREA STPPortage1 MGD (million gallons per day)2022
N HUNTINGDON TWP - YOUGHIOGHENY STPNorth Huntingdon1 MGD (million gallons per day)2022
ELIZABETH TWP BUENA VISTA STPBuena Vista1 MGD (million gallons per day)2022
MIDDLE SMITHFIELD TWP STPEast Stroudsburg1 MGD (million gallons per day)2022
Williamston/Big Creek EastWilliamston1 MGD (million gallons per day)2022
HALLS WWTPHalls1 MGD (million gallons per day)2022
Jamestown STPJamestown1 MGD (million gallons per day)2022
JEFFERSON CITY WWTPJefferson City1 MGD (million gallons per day)2022
JONESBOROUGH STPJonesborough1 MGD (million gallons per day)2022
Monterey WWTPMonterey1 MGD (million gallons per day)2022
Oakland STPOakland1 MGD (million gallons per day)2022
WHITEVILLE STPWhiteville1 MGD (million gallons per day)2022
Roane Co. STPRockwood1 MGD (million gallons per day)2022
Taylor Lane WWTPAustin1 MGD (million gallons per day)2022
Horizon City WWTPEl Paso1 MGD (million gallons per day)2022
Kermit WWTPKermit1 MGD (million gallons per day)2022
Los Fresnos WWTPLos Fresnos1 MGD (million gallons per day)2022
South Plant - KingsvilleKingsville1 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.