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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
HILLSBORO WWTPHillsboro0.034 MGD (million gallons per day)2022
BOWLER STPBowler0.034 MGD (million gallons per day)2022
WHITE LAKE STPWhite Lake0.034 MGD (million gallons per day)2022
LAKELAND SD #1 STP (Barron)Barronett0.034 MGD (million gallons per day)2022
Port Costa WWTFPort Costa0.033 MGD (million gallons per day)2022
DIETRICH STPDietrich0.033 MGD (million gallons per day)2022
Fulton Municipal WWTPFulton0.033 MGD (million gallons per day)2022
CANTRIL WWTPCantril0.033 MGD (million gallons per day)2022
CRYSTAL LAKE WWTPCrystal Lake0.033 MGD (million gallons per day)2022
FOSTORIA WWTPFostoria0.033 MGD (million gallons per day)2022
HOLLAND WWTPHolland0.033 MGD (million gallons per day)2022
MODALE WWTPModale0.033 MGD (million gallons per day)2022
WELTON STPWelton0.033 MGD (million gallons per day)2022
BOXHOLM WWTPBoxholm0.033 MGD (million gallons per day)2022
EMMETT WWTPEmmett0.033 MGD (million gallons per day)2022
REPUBLIC WWTPRepublic0.033 MGD (million gallons per day)2022
DURHAM WWTPDurham0.033 MGD (million gallons per day)2022
LANE WWTPLane0.033 MGD (million gallons per day)2022
HITTERDAL WWTFHitterdal0.033 MGD (million gallons per day)2022
Centerview WWTPCenterview0.033 MGD (million gallons per day)2022
Chula WWTPChula0.033 MGD (million gallons per day)2022
FCPWSD #3, Victoria GardensPacific0.033 MGD (million gallons per day)2022
Mendon WWTPMendon0.033 MGD (million gallons per day)2022
VIRGINIA CITY WWTPVirginia City0.033 MGD (million gallons per day)2022
DODSON, TOWN OF - WWTPDodson0.033 MGD (million gallons per day)2022
Rincon, Village ofRincon0.033 MGD (million gallons per day)2022
La Grange (T) Noxon Knolls SD STPPoughkeepsie0.033 MGD (million gallons per day)2022
Lore City WWTP and collection systemLore City0.033 MGD (million gallons per day)2022
Harrisville WWTP and collection systemHarrisville0.033 MGD (million gallons per day)2022
Washington Co Stacy Meadowcrest Subdivision WWTP and SewersBelpre0.033 MGD (million gallons per day)2022
Columbiana Co County Home Rd WWTPLisbon0.033 MGD (million gallons per day)2022
Hardin Co Roots Fairwayview Subdivision WWTPKenton0.033 MGD (million gallons per day)2022
BEAVER CO. #1 (TURPIN) WWTTurpin0.033 MGD (million gallons per day)2022
KREMLIN WWTKremlin0.033 MGD (million gallons per day)2022
Kaufer Hubert Memorial PK WWTPRiviera0.033 MGD (million gallons per day)2022
CRESCENT BAR WWTFQuincy0.033 MGD (million gallons per day)2022
GRAND VIEW SD #1 - STPGrand View0.033 MGD (million gallons per day)2022
Catawba-Kennan Joint SC - STPCatawba0.033 MGD (million gallons per day)2022
ARKANSAW SD # 1 - STPArkansaw0.033 MGD (million gallons per day)2022
Eldorado Springs LIDEldorado Springs0.032 MGD (million gallons per day)2022
Romney RSDRomney0.032 MGD (million gallons per day)2022
AURORA STLAurora0.032 MGD (million gallons per day)2022
CHURDAN WWTPChurdan0.032 MGD (million gallons per day)2022
CRAWFORDSVILLE WWTPCrawfordsville0.032 MGD (million gallons per day)2022
FENTON WWTPFenton0.032 MGD (million gallons per day)2022
GARDEN GROVE WWTPGarden Grove0.032 MGD (million gallons per day)2022
LUXEMBURG WWTPLuxemburg0.032 MGD (million gallons per day)2022
VINCENT STLVincent0.032 MGD (million gallons per day)2022
EVEREST WWTPEverest0.032 MGD (million gallons per day)2022
UNIONTOWN WWTPUniontown0.032 MGD (million gallons per day)2022
MORRILL WWTPMorrill0.032 MGD (million gallons per day)2022
LINCOLNVILLE WWTPLincolnville0.032 MGD (million gallons per day)2022
COLLINSTON STPCollinston0.032 MGD (million gallons per day)2022
PARISH SD 6 PONDSpringfield0.032 MGD (million gallons per day)2022
Jude House Package WWTP (Bel Alton WWTP)Bel Alton0.032 MGD (million gallons per day)2022
LONG LAKE AREA WWTFOrleans0.032 MGD (million gallons per day)2022
OSTRANDER WWTPOstrander0.032 MGD (million gallons per day)2022
Middletown WWTPMiddletown0.032 MGD (million gallons per day)2022
Maitland WWTPMaitland0.032 MGD (million gallons per day)2022
Gray Summit S.D. WWTFGray Summit0.032 MGD (million gallons per day)2022
Lake Hannibal Estates WWTPHannibal0.032 MGD (million gallons per day)2022
Prairie Home WWTPPrairie Home0.032 MGD (million gallons per day)2022
Phillipsburg WWTPPhillipsburg0.032 MGD (million gallons per day)2022
CUSTER - YELLOWSTONE COUNTY Sewer DistrictCuster0.032 MGD (million gallons per day)2022
NORTH CUT BANKCut Bank0.032 MGD (million gallons per day)2022
ORGAN LAGOONOrgan0.032 MGD (million gallons per day)2022
Fayette Co Good Hope WWTP & SewersGreenfield0.032 MGD (million gallons per day)2022
Portage Co Western Reserve WWTPRavenna0.032 MGD (million gallons per day)2022
DUSTIN PWA WWTDustin0.032 MGD (million gallons per day)2022
Forsan High School WWTPForsan0.032 MGD (million gallons per day)2022
MEGARGEL WWTPMegargel0.032 MGD (million gallons per day)2022
KLICKITAT STPKlickitat0.032 MGD (million gallons per day)2022
MEADOW CREEK PSD - SANDSTONE TPSandstone0.032 MGD (million gallons per day)2022
RIDGELAND WWTPRidgeland0.032 MGD (million gallons per day)2022
DOWNSVILLE SD #1 - STPMenomonie0.032 MGD (million gallons per day)2022
AMANI SD STPMilwaukee0.032 MGD (million gallons per day)2022
Boone, Town ofBoone0.031 MGD (million gallons per day)2022
CLARE WWTPClare0.031 MGD (million gallons per day)2022
CUSHING WWTPCushing0.031 MGD (million gallons per day)2022
FARMERSBURG WWTPFarmersburg0.031 MGD (million gallons per day)2022
LINN GROVE WWTPLinn Grove0.031 MGD (million gallons per day)2022
LUANA WWTPLuana0.031 MGD (million gallons per day)2022
PERSIA WASTEWATERPersia0.031 MGD (million gallons per day)2022
PRAIRIEBURG WWTPPrairieburg0.031 MGD (million gallons per day)2022
WOOLSTOCK STLWoolstock0.031 MGD (million gallons per day)2022
WAUCOMA WWTPWaucoma0.031 MGD (million gallons per day)2022
PILOT MOUND WWTPPilot Mound0.031 MGD (million gallons per day)2022
MOSCOW WWTPMoscow0.031 MGD (million gallons per day)2022
MCFARLAND WWTPMc Farland0.031 MGD (million gallons per day)2022
READING WWTPReading0.031 MGD (million gallons per day)2022
WEST MINERAL WWTPWest Mineral0.031 MGD (million gallons per day)2022
FORD WWTPFord0.031 MGD (million gallons per day)2022
MCDONALD WWTPMc Donald0.031 MGD (million gallons per day)2022
REXFORD WWTPRexford0.031 MGD (million gallons per day)2022
BURNS WWTPBurns0.031 MGD (million gallons per day)2022
Easton Public Schools Sewerage Collection System and WWTFNorth Easton0.031 MGD (million gallons per day)2022
BEAVER CREEK WWTPBeaver Creek0.031 MGD (million gallons per day)2022
OKABENA WWTPOkabena0.031 MGD (million gallons per day)2022
ORMSBY WWTFOrmsby0.031 MGD (million gallons per day)2022
PWSD No1 of Gasconade County WWTFOwensville0.031 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.