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

Wastewater treatment plants in United States · Ohio

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808 inventory records · EPA Clean Watersheds Needs Survey 2022

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

808 results

CompareNameNative sizeYear
New Richmond WWTP & Sewer SystemNew Richmond0.55 MGD (million gallons per day)2022
Wintersville WWTP & Sewer SystemSteubenville0.54 MGD (million gallons per day)2022
Woodsfield WWTP & Sewer SystemWoodsfield0.53 MGD (million gallons per day)2022
Lowellville WWTP & Sewer SystemLowellville0.512 MGD (million gallons per day)2022
Andover WWTP & SewersAndover0.5 MGD (million gallons per day)2022
Sugarcreek WWTP & SewersSugarcreek0.5 MGD (million gallons per day)2022
Tuscarawas Co Sandyville-East Sparta WWTP & SewerBolivar0.5 MGD (million gallons per day)2022
Fayette Co Rattlesnake SD #1 WWTPJefferson0.5 MGD (million gallons per day)2022
Botkins WWTP & Sewer SystemBotkins0.5 MGD (million gallons per day)2022
West Liberty WWTP & Sewer SystemWest Liberty0.5 MGD (million gallons per day)2022
Cardington WWTP & Sewer SystemCardington0.5 MGD (million gallons per day)2022
Butler Co Wade Mill WRFRoss0.5 MGD (million gallons per day)2022
Doylestown WWTP & Sewer SystemDoylestown0.5 MGD (million gallons per day)2022
Elida WWTP & Sewer SystemLima0.5 MGD (million gallons per day)2022
Garrettsville WWTP & Sewer SystemGarrettsville0.5 MGD (million gallons per day)2022
Gibsonburg WWTP & Sewer SystemGibsonburg0.5 MGD (million gallons per day)2022
Jeffersonville WWTP & Sewer SystemJeffersonville0.5 MGD (million gallons per day)2022
Lynchburg WWTP & Sewer SystemLynchburg0.5 MGD (million gallons per day)2022
McConnelsville WWTP & Sewer SystemMcconnelsville0.5 MGD (million gallons per day)2022
Mount Sterling WWTP & Sewer SystemMount Sterling0.5 MGD (million gallons per day)2022
Mantua WWTP & Collection SystemMantua0.5 MGD (million gallons per day)2022
Put-in-Bay WWTP & Sewer SystemPut In Bay0.5 MGD (million gallons per day)2022
Saint Paris WWTP & Sewer SystemSaint Paris0.5 MGD (million gallons per day)2022
Seville WWTP & Sewer SystemSeville0.5 MGD (million gallons per day)2022
South Bloomfield WWTP & SewersAshville0.5 MGD (million gallons per day)2022
Williamsburg WWTP & Sewer SystemWilliamsburg0.5 MGD (million gallons per day)2022
Quincy/DeGraff WWTP & Sewer SystemQuincy0.495 MGD (million gallons per day)2022
McArthur WWTP & Sewer SystemMc Arthur0.494 MGD (million gallons per day)2022
Bradford WWTP & Sewer SystemBradford0.48 MGD (million gallons per day)2022
Gambier WWTP & Sewer SystemGambier0.45 MGD (million gallons per day)2022
Piketon WWTP & Collection SystemPiketon0.45 MGD (million gallons per day)2022
Plymouth WWTP & Sewer SystemPlymouth0.45 MGD (million gallons per day)2022
Scioto Co West Portsmouth WWTP & SewersWest Portsmouth0.45 MGD (million gallons per day)2022
Spencerville WWTP & Sewer SystemSpencerville0.45 MGD (million gallons per day)2022
Windham WWTP & Sewer SystemWindham0.45 MGD (million gallons per day)2022
New Concord WWTP & Sewer SystemNew Concord0.448 MGD (million gallons per day)2022
Shreve WWTP & Sewer SystemShreve0.438 MGD (million gallons per day)2022
Commercial Point WWTP & SewersCommercial Point0.43 MGD (million gallons per day)2022
Yorkville WWTP & Sewer SystemYorkville0.424 MGD (million gallons per day)2022
Utica WWTP & Sewer SystemUtica0.423 MGD (million gallons per day)2022
Jefferson Co Barber's Hollow WWTPSteubenville0.42 MGD (million gallons per day)2022
Peebles WWTP & Sewer SystemPeebles0.42 MGD (million gallons per day)2022
Mercer Co Montezuma/Club Island SDCelina0.42 MGD (million gallons per day)2022
Killbuck WWTP & SewersKillbuck0.411 MGD (million gallons per day)2022
Holmes Co Walnut Creek WWTP & SewersMillersburg0.4 MGD (million gallons per day)2022
Shelby Co Lake Loramie WWTPMinster0.4 MGD (million gallons per day)2022
Columbiana Co Gilford Lake WWTPLisbon0.4 MGD (million gallons per day)2022
Dalton WWTP & Sewer SystemDalton0.4 MGD (million gallons per day)2022
Anna WWTP & SewersAnna0.4 MGD (million gallons per day)2022
Union City WWTP & Sewer SystemUnion City0.4 MGD (million gallons per day)2022
Arcanum WWTP & SewersArcanum0.4 MGD (million gallons per day)2022
Clermont Co Miami Trails WWTPLoveland0.4 MGD (million gallons per day)2022
Lake Co Heatherstone WWTPPainesville0.4 MGD (million gallons per day)2022
Leesburg WWTP & Sewer SystemLeesburg0.4 MGD (million gallons per day)2022
Pemberville WWTP & Sewer SystemPemberville0.4 MGD (million gallons per day)2022
Ripley WWTP & Sewer SystemRipley0.4 MGD (million gallons per day)2022
Thornville WWTP & Sewer SystemThornville0.4 MGD (million gallons per day)2022
Tiltonsville WWTP & Sewer SystemTiltonsville0.4 MGD (million gallons per day)2022
McComb WWTP & Sewer SystemMc Comb0.39 MGD (million gallons per day)2022
Aberdeen WWTP & SewersAberdeen0.385 MGD (million gallons per day)2022
Richwood WWTP & Sewer SystemRichwood0.38 MGD (million gallons per day)2022
Sabina WWTP & Sewer SystemSabina0.38 MGD (million gallons per day)2022
Minford Area WWTPMinford0.375 MGD (million gallons per day)2022
Jackson Center WWTP & Sewer SystemJackson Center0.37 MGD (million gallons per day)2022
Milan WWTP & Sewer SystemMilan0.37 MGD (million gallons per day)2022
LaGrange WWTP & Sewer SystemLagrange0.363 MGD (million gallons per day)2022
Middleport WWTP & Collection SystemMiddleport0.36 MGD (million gallons per day)2022
Ansonia WWTP & SewersAnsonia0.36 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
Chauncey WWTP & Sewer SystemChauncey0.345 MGD (million gallons per day)2022
Pomeroy WWTP & Sewer SystemPomeroy0.345 MGD (million gallons per day)2022
Dillonvale/Mount Pleasant WWSD WWTP and SewersDillonvale0.34 MGD (million gallons per day)2022
Leetonia WWTP & Sewer SystemLeetonia0.34 MGD (million gallons per day)2022
Powhatan Point WWTP & SewersPowhatan Point0.34 MGD (million gallons per day)2022
Ottoville WWTP & Sewer SystemOttoville0.339 MGD (million gallons per day)2022
Bremen WWTP & Sewer SystemRushville0.336 MGD (million gallons per day)2022
Antwerp WWTP & SewersAntwerp0.33 MGD (million gallons per day)2022
Bellville WWTP & Sewer SystemBellville0.33 MGD (million gallons per day)2022
Stark Co Magnolia WWTPMagnolia0.33 MGD (million gallons per day)2022
West Unity WWTP & Sewer SystemWest Unity0.325 MGD (million gallons per day)2022
New Paris WWTP & Sewer SystemNew Paris0.32 MGD (million gallons per day)2022
West Lafayette WWTP & Sewer SystemWest Lafayette0.32 MGD (million gallons per day)2022
Portage Co Randolph WWTPRavenna0.318 MGD (million gallons per day)2022
Bethesda WWTP & Sewer SystemBethesda0.31 MGD (million gallons per day)2022
Richland Co Eastview WWTPMansfield0.31 MGD (million gallons per day)2022
Millersport WWTP & Sewer SystemMillersport0.302 MGD (million gallons per day)2022
Holmes Co Berlin Village WWTP & SewersMillersburg0.3 MGD (million gallons per day)2022
Highland Co Rocky Fork Lake WWTPHillsboro0.3 MGD (million gallons per day)2022
Madison Co SD #2 Choctaw Lake WWTPLondon0.3 MGD (million gallons per day)2022
Apple Creek WWTP & SewersApple Creek0.3 MGD (million gallons per day)2022
Creston WWTP & Sewer SystemCreston0.3 MGD (million gallons per day)2022
Woodville WWTP & Sewer SystemWoodville0.3 MGD (million gallons per day)2022
Beach City WWTP & Sewer SystemBeach City0.3 MGD (million gallons per day)2022
Beverly WWTP & Sewer SystemBeverly0.3 MGD (million gallons per day)2022
Franklin Co Darbydale Area WWTP & SewersColumbus0.3 MGD (million gallons per day)2022
Edgerton WWTP & Sewer SystemEdgerton0.3 MGD (million gallons per day)2022
Fredericktown WWTP & Sewer SystemFredericktown0.3 MGD (million gallons per day)2022
Haskins WWTP & Sewer SystemHaskins0.3 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.