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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
Manchester WWTP & Sewer SystemManchester0.3 MGD (million gallons per day)2022
Oak Hill WWTP & Sewer SystemOak Hill0.3 MGD (million gallons per day)2022
Sardinia WWTP & Sewer SystemSardinia0.3 MGD (million gallons per day)2022
West Alexandria WWTP & Sewer SystemWest Alexandria0.3 MGD (million gallons per day)2022
Trimble Township WWT DistrictGlouster0.283 MGD (million gallons per day)2022
Portage Co Atwater WWTPAtwater0.281 MGD (million gallons per day)2022
Smithville WWTP & Sewer SystemSmithville0.28 MGD (million gallons per day)2022
Marion Co Grandview Estates SD #2AMarion0.28 MGD (million gallons per day)2022
NWWSD Weston WWTP & Sewer SystemWeston0.28 MGD (million gallons per day)2022
Elmore WWTP & Sewer SystemElmore0.275 MGD (million gallons per day)2022
Syracuse-Racine WSD WWTP & SewersRacine0.275 MGD (million gallons per day)2022
Burton WWTP & Sewer SystemBurton0.27 MGD (million gallons per day)2022
Fayette WWTP & Sewer SystemFayette0.27 MGD (million gallons per day)2022
Payne WWTP & Sewer SystemPayne0.27 MGD (million gallons per day)2022
Pleasant City WWTP & SewersPleasant City0.27 MGD (million gallons per day)2022
Strasburg WWTP & Sewer SystemStrasburg0.27 MGD (million gallons per day)2022
Lewisburg WWTP & Sewer SystemLewisburg0.261 MGD (million gallons per day)2022
Orwell WWTP & Sewer SystemOrwell0.26 MGD (million gallons per day)2022
MSD Fort Scott Drainage BasinHarrison0.25 MGD (million gallons per day)2022
Bloomingburg WWTP & Sewer SystemBloomingburg0.25 MGD (million gallons per day)2022
Fort Recovery WWTP & SewersFort Recovery0.25 MGD (million gallons per day)2022
Rockford WWTP & Sewer SystemRockford0.25 MGD (million gallons per day)2022
Felicity Collection system & WWTPFelicity0.25 MGD (million gallons per day)2022
Gnadenhutten WWTP & Sewer SystemGnadenhutten0.25 MGD (million gallons per day)2022
Liberty Center WWTP & Sewer SystemLiberty Center0.25 MGD (million gallons per day)2022
Somerset WWTP & Sewer SystemSomerset0.25 MGD (million gallons per day)2022
Holgate WWTP & Sewer SystemHolgate0.247 MGD (million gallons per day)2022
Coal Grove WWTP & Sewer SystemCoal Run0.246 MGD (million gallons per day)2022
Prospect WWTP & Sewer SystemProspect0.24 MGD (million gallons per day)2022
Dresden WWTP & Sewer SystemDresden0.24 MGD (million gallons per day)2022
South Charleston WWTP & SewersSouth Charleston0.24 MGD (million gallons per day)2022
Chickasaw WWTP and SewersChickasaw0.237 MGD (million gallons per day)2022
Mechanicsburg WWTP & Sewer SystemMechanicsburg0.23 MGD (million gallons per day)2022
Defiance Co Auglaize River Lagoon WWTPDefiance0.223 MGD (million gallons per day)2022
Farmersville WWTP & Sewer SystemFarmersville0.222 MGD (million gallons per day)2022
Portage Co Bolingbrook WWTPRavenna0.222 MGD (million gallons per day)2022
Lindsey WWTP & Sewer SystemLindsey0.214 MGD (million gallons per day)2022
West Salem WWTP & Sewer SystemWest Salem0.204 MGD (million gallons per day)2022
Laurelville WWTP & SewersLaurelville0.2 MGD (million gallons per day)2022
Scio WWTP & Sewer SystemScio0.2 MGD (million gallons per day)2022
Salineville WWTP & Sewer SystemSalineville0.2 MGD (million gallons per day)2022
Forest WWTP & Sewer SystemForest0.2 MGD (million gallons per day)2022
Monroeville WWTP & Sewer SystemMonroeville0.2 MGD (million gallons per day)2022
Greenwich WWTP & Sewer SystemGreenwich0.2 MGD (million gallons per day)2022
Attica WWTP & SewersAttica0.2 MGD (million gallons per day)2022
Danville WWTP & Sewer SystemDanville0.2 MGD (million gallons per day)2022
Centerburg WWTP & Sewer SystemCenterburg0.2 MGD (million gallons per day)2022
Brilliant Water & Sewer DistrictBrilliant0.2 MGD (million gallons per day)2022
Pleasant Hill WWTP & Sewer SystemPleasant Hill0.2 MGD (million gallons per day)2022
Convoy WWTP & Sewer SystemConvoy0.2 MGD (million gallons per day)2022
Edon WWTP & Sewer SystemEdon0.2 MGD (million gallons per day)2022
Flushing WWTP & Sewer SystemFlushing0.2 MGD (million gallons per day)2022
Geauga Co Valley View WWTPChardon0.2 MGD (million gallons per day)2022
Kalida WWTP & Sewer SystemKalida0.2 MGD (million gallons per day)2022
Kingston WWTP & Sewer SystemKingston0.2 MGD (million gallons per day)2022
Lorain Co Eaton Homes WWTPElyria0.2 MGD (million gallons per day)2022
Metamora WWTP & Sewer SystemMetamora0.2 MGD (million gallons per day)2022
Hiram WWTP & Sewer SystemHiram0.2 MGD (million gallons per day)2022
Ashley WWTP & SewersAshley0.19 MGD (million gallons per day)2022
Beloit WWTP & Sewer SystemBeloit0.19 MGD (million gallons per day)2022
Frankfort WWTP & Sewer SystemFrankfort0.19 MGD (million gallons per day)2022
Frazeysburg WWTP & Sewer SystemFrazeysburg0.183 MGD (million gallons per day)2022
Walnut Creek Sewer DistrictPleasantville0.181 MGD (million gallons per day)2022
Fayetteville-Perry Twp RSD WWTPFayetteville0.18 MGD (million gallons per day)2022
Deshler WWTP & Sewer SystemDeshler0.18 MGD (million gallons per day)2022
Grand Rapids WWTP & Sewer SystemGrand Rapids0.18 MGD (million gallons per day)2022
New Waterford WWTP & Sewer SystemNew Waterford0.18 MGD (million gallons per day)2022
Seaman WWTP & Sewer SystemSeaman0.18 MGD (million gallons per day)2022
Bettsville WWTP and Sewer SystemBettsville0.175 MGD (million gallons per day)2022
Wakeman WWTP & Sewer SystemWakeman0.175 MGD (million gallons per day)2022
Continental WWTP & Sewer SystemContinental0.173 MGD (million gallons per day)2022
Portage Co Red Fox WWTPRavenna0.171 MGD (million gallons per day)2022
Warsaw WWTP & Sewer SystemWarsaw0.17 MGD (million gallons per day)2022
Winchester WWTP & Sewer SystemWinchester0.17 MGD (million gallons per day)2022
Arlington WWTP & SewersArlington0.168 MGD (million gallons per day)2022
Wayne Co Kidron WWTP & SewersKidron0.16 MGD (million gallons per day)2022
Roaming Shores WWTP & Sewer SystemRock Creek0.16 MGD (million gallons per day)2022
Sycamore WWTP & Sewer SystemSycamore0.16 MGD (million gallons per day)2022
Pioneer WWTP & Sewer SystemPioneer0.16 MGD (million gallons per day)2022
Sherwood WWTP & Sewer SystemSherwood0.16 MGD (million gallons per day)2022
Geauga Co Opalacka WWTPChesterland0.16 MGD (million gallons per day)2022
Matamoras WWTP & Sewer SystemNew Matamoras0.16 MGD (million gallons per day)2022
Rio Grande WWTP & SewersRio Grande0.16 MGD (million gallons per day)2022
Clinton Co Martinsville-Midland WWTPMidland0.152 MGD (million gallons per day)2022
Alger WWTP & SewersAlger0.15 MGD (million gallons per day)2022
Tuscarawas WWTP & Sewer SystemTuscarawas0.15 MGD (million gallons per day)2022
South Webster WWTP & Sewer SystemSouth Webster0.15 MGD (million gallons per day)2022
Madison Co SD #1 WWTP & SewersLondon0.15 MGD (million gallons per day)2022
Ashtabula Co Coffee Creek WWTPAustinburg0.15 MGD (million gallons per day)2022
Ashtabula Co Holiday Camplands WWTPAndover0.15 MGD (million gallons per day)2022
New Washington WWTP & SewersNew Washington0.15 MGD (million gallons per day)2022
Erie Co Mittiwanga-Ruggles Beach WWTPHuron0.15 MGD (million gallons per day)2022
Tuscarawas Co Mineral City WWTPBolivar0.15 MGD (million gallons per day)2022
Pandora WWTP & Sewer SystemPandora0.15 MGD (million gallons per day)2022
Earnhart Hill Regional WSD WWTPCircleville0.15 MGD (million gallons per day)2022
Scippo Sewer District WWTP & SewersCircleville0.15 MGD (million gallons per day)2022
Williamsport WWTP & Sewer SystemWilliamsport0.15 MGD (million gallons per day)2022
Geauga Co Infirmary Creek WWTPChardon0.149 MGD (million gallons per day)2022
Geauga Co Parkman WWTPParkman0.149 MGD (million gallons per day)2022
Morrow Co SoMoCo WWTFMarengo0.145 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.