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Wastewater Treatment Plants in Ohio

845 facilities · 1,256 MGD combined flow

Below are publicly owned wastewater treatment plants in Ohio tracked by Klarifi, with average flow, treatment technology and NPDES permit details. Click a facility for its full profile. Showing the 200 largest by flow of 845 total — search the full set in the Klarifi platform.

FacilityCityFlow (MGD)
Southerly Wastewater Treatment CenterCleveland103.36
Southerly Wastewater Treatment PlantLockbourne98.7
Metropolitan Sewer Dis Little Miami WWTPCincinnati51.81
Akron WRFAkron51.75
City Of Toledo Division Of Water ReclaimationToledo50.79
City Of Dayton Water Reclamation Facility (0857100983)Dayton47.94
Waste Water Treatment PlantYoungstown26.44
Neorsd Westerly Wwt ComplexCleveland25.02
City Of CantonCanton23.82
City Of Euclid, Wastewater Treatment PlantEuclid18.53
City Of Springfield Wastewater TreatmentSpringfield15.73
Maumee River Wastewater Treatment PlantWaterville14.17
Middletown Wastewater Treatment PlantMiddletown13.84
Sandusky WPCSandusky13.31
City Of Warren Water Pollution ControlWarren12.27
Salineville WWTPSalineville12.18
Gary L Kron Water Reclamation FacilityMentor11.82
Rocky River Wastewater Treatment PlantRocky River11.8
Western Regional WRFWest Carrollton11.24
Black River Wastewater Treatment PlantLorain10.27
Muddy Creek WWTPCincinnati10.26
Lima WWTPLima10.16
Massillon WWTPMassillon9.86
North Regional Wastewater Treatment Plan (0857143037)Dayton9.56
Upper Mill Creek Water Reclamation FacilWest Chester9.5
Lesourdsville Water Reclamation FacilityHamilton9.05
Findlay WPCFFindlay8.9
Mansfield Wastewater Treatment PlantMansfield8.87
Beavercreek WRRFDayton8.71
Newark WWTPNewark8.64
Eastern Regional Water Reclamation FacilityKettering8.01
Lakewood WWTPLakewood7.95
City Of Elyria Wastewater Pollution Control PlantElyria6.86
Fremont WPCFFremont6.85
City Of Zanesville Wastewater Treatment PlantZanesville6.6
Sugarcreek WRFSpring Valley6.5
Marion WPCMarion6.48
French Creek WWTPNorth Ridgeville6.44
Hamilton Water Reclamation FacilityHamilton6.42
Lower East Fork Regional WWTPMilford6.4
Lower Little Miami WWTPMaineville6.38
Lancaster Water Pollution ControlLancaster6.31
Mason WWTP No 2Mason6.18
Sycamore Creek WWTPCincinnati5.87
Medina County - Liverpool WWTP (sd #500)Valley City5.59
Barberton WPCFBarberton5.56
Willoughby-Eastlake Water Pollution ContEastlake5.39
Wooster Renewable EnergyWooster5.32
Alum Creek WWTPDelaware5.24
Bowling GreenBowling Green5.19
North Olmsted WWTPNorth Olmsted5.17
Troy WWTPTroy5.01
Fairfield WWTPFairfield4.95
Oregon Wastewater Treatment PlantOregon4.66
Fairborn Water Reclamation CenterHuber Hts4.57
Marysville WRFMarysville4.44
Sidney WWTPSidney4.43
Avon Lake WPCFAvon Lake4.33
Alliance Water Tr. Plant And Wastewater Tr. PlantAlliance4.26
Upper Olentangy Water Reclamation CenterDelaware4.15
Niles WWTPNiles4.14
Middle East Fork Regional WWTPBatavia4.1
Struthers WWTPStruthers4.07
Portsmouth Lawson Run WWTPPortsmouth3.97
Hebron Village WRFHebron3.93
Ashtabula WPCPAshtabula3.86
Olentangy Environmental Control CenterPowell3.86
Polk Run WWTPLoveland3.8
Perrysburg WWTPPerrysburg3.73
Trumbull Mosquito Creek WWTPWarren3.7
Washington Court House WWTPWashington Court House3.69
Chillicothe WWTP - EasterlyChillicothe3.68
City Of Solon Water Reclamation FacilitySolon3.58
Fostoria City DumpFostoria3.35
Piqua WWTPPiqua3.31
Meander WPCFMineral Ridge3.28
Lebanon WWTPLebanon3.15
Wakeman WWTPWakeman3.14
Wapakoneta WWTPWapakoneta3.14
Ashland WWTPAshland3.1
Boardman WWTPYoungstown3.08
City Of Twinsburg WWTPTwinsburg2.97
Columbus Grove WWTPColumbus Grove2.92
Tiffin WWTPTiffin2.87
Doylestown WPCFDoylestown2.85
Peebles Public Water SystemPeebles2.83
Wadsworth WWTPWadsworth2.82
Defiance Water Pollution Control PlantDefiance2.8
Upper Tuscarawas WWTP No 36Akron2.78
Xenia Ford Road Wastewater Treatment PlantXenia2.73
London WWTPLondon2.7
Taylor Creek WWTPCleves2.67
Madison WWTP No 1Madison2.6
Pickerington WWTPPickerington2.58
Wilmington WWTPWilmington2.57
Painesville WPC PltPainesville2.54
Streetsboro Hudson Regional WWTPStreetsboro2.47
Eastern Ohio Regional WW AuthorityBellaire2.43
Kenton WWTPKenton2.42
New Paris WWTPNew Paris2.41
Oxford WWTPOxford2.39
Girard WWTPGirard2.38
Gilford Lake STPLisbon2.29
Mount Vernon Wastewater Treatment PlantMount Vernon2.25
East Liverpool WWTPEast Liverpool2.23
Southwest Licking W & Sd Gale Rd Envir Ctrl FacHebron2.18
Athens WWTPAthens2.18
New Philadelphia WWTPNew Philadelphia2.18
Galion WWTPGalion2.17
Bellefontaine WWTPBellefontaine2.16
Philip Q Maiorana WWTPLorain2.14
Miamisburg Water Reclamation FacilityMiamisburg2.12
Kent Water Reclamation FacilityKent2.08
Fairfield Co Tussing Road WWTPLancaster2.07
City Of Salem - Wastewater PlantSalem2.06
Glady Run WWTPXenia2.03
Diehl Lake Collection & WWTPEllsworth2.02
Orrville WWTPOrrville2.02
Norwalk WWTPNorwalk1.96
North Royalton WWTP ANorth Royalton1.95
City Of Cambridge Water Pollution Control CenterCambridge1.9
O'Bannon Creek Regional WWTPLoveland1.9
Springboro WWTPSpringboro1.88
Greenville WWTPGreenville1.85
Circleville WWTPCircleville1.84
Bucyrus WWTPBucyrus1.82
Port Clinton WWTPPort Clinton1.8
Van Wert WWTPVan Wert1.78
Conneaut WWTPConneaut1.77
Amherst WpccAmherst1.69
Clyde WWTPClyde1.68
Urbana WPCFUrbana1.65
Canal Winchester WWTPCanal Winchester1.61
Jackson WWTPJackson1.61
Bedford WWTPBedford1.6
Williamsport WWTPWilliamsport1.6
Celina WWTPCelina1.58
Willard WPCPWillard1.57
St Marys City WWTPSaint Marys1.55
Minster WWTPMinster1.55
Medina Co Sd #300 Hinckley WWTPHinckley1.52
Archbold VillageArchbold1.52
Napoleon WWTPNapoleon1.51
Bedford Hts City OfBedford Heights1.51
Delphos WWTPDelphos1.5
Andover WPCFAndover1.49
Shelby WWTPShelby1.45
Erie County Sawmill Creek WWTPHuron1.45
Oberlin Water Environment Protection FacilityOberlin1.44
Toronto WWTPToronto1.44
Pickaway Correctional InstituteOrient1.43
Englewood WWTPEnglewood1.42
Hubbard WPCFHubbard1.41
Louisville WWTPLouisville1.4
Wellston WWTP NorthWellston1.4
Southwest Regional WWTPMedway1.36
Mcfarland Creek WWTPBainbridge1.36
Ironton WWTPIronton1.35
Nine Mile Creek WWTPNew Richmond1.34
Shawnee No 2 WWTPLima1.32
City Of Dover Wastewater Treatment PlantDover1.28
Coldwater WWTPColdwater1.27
Heath WWTPHeath1.27
Twin City WWTPUhrichsville1.26
Ravenna WWTP & Sewer SystemRavenna1.25
Franklin Hills WWTPKent1.22
Indian Lake Regional WWTPRussells Point1.22
Danbury Twp WWTPPort Clinton1.2
City Of Bryan Wastewater Treatment PlantBryan1.17
Hillsboro WWTPHillsboro1.15
City Of Vermilion WPCFVermilion1.13
West Carrollton WWTPW Carrollton1.1
Huron Basin WWTPHuron1.09
West Jefferson WWTPWest Jefferson1.08
Logan WWTPLogan1.08
City Of Coshocton WWTPCoshocton1.07
Gallipolis WPCFGallipolis1.07
Upper Sandusky WWTPUpper Sandusky1.06
City Of Bellevue WWTPBellevue1.06
Eaton WWTPEaton1.03
Newton Falls WPCNewton Falls1.02
Ashtabula Co Coffee Creek WWTPAustinburg1.02
Campbell WWTPCampbell1.01
Buckeye Lake WWTPBuckeye Lake1
Ottawa WWTPOttawa0.98
Harrison WWTPHarrison0.98
Wheelersburg WWTP Sd No 2Wheelersburg0.96
Chillicothe Correctional InstitutionChillicothe0.95
South Point VillageSouth Point0.94
Aurora Westerly WWTPAurora0.94
Leipsic WWTPLeipsic0.94
Aqua Ohio Water Co Inc - Blacklick WWTPColumbus0.94
Brookfield WWTPMasury0.9
Wauseon WWTPWauseon0.88
Hoytville WWTPHoytville0.88
Greenfield WWTPGreenfield0.87
Sd No 7 Water Reclamation PlantMarion0.87
Pataskala WWTPPataskala0.86
Union WWTPUnion0.85
Brookville WWTPBrookville0.84

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