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EWG's Tap Water Database — 2019 UPDATE

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Ohio

  • 1,193 Utilities

  • Serving: 10,123,000

  • Data available: 2012-2017

  • Contaminants Found: 103

 

EWG's drinking water quality report for Ohio shows results of tests conducted by the water utilities in Ohio and provided to EWG by the Ohio Environmental Protection Agency - Division of Drinking and Ground Waters.

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

Below are utilities in Ohio serving over 10,000 people, listed alphabetically. Click the "more" button below to get the full list of utilities serving over 10,000 people.

Large utilities in Ohio

UtilityLocationPeople
Served
Adams County Regional WD PWSWest Union, OH19,194
Akron City Public Water SystemKent, OH280,000
Alliance City PWSAlliance, OH22,232
Amherst City PWSAmherst, OH11,797
Aqua Ohio - AshtabulaMentor, OH39,838
Aqua Ohio - City of MassillonMassillon, OH90,000
Aqua Ohio - MarionMarion, OH41,925
Aqua Ohio - StruthersStruthers, OH47,000
Aqua Ohio - TiffinTiffin, OH17,963
Aqua Ohio Inc. - MentorMentor, OH83,000
Ashland CityAshland, OH20,648
Ashtabula County Water SystemJefferson, OH14,200
Athens PWSAthens, OH24,024
Aurora City - Cleveland PWSAurora, OH15,852
Avon City PWSAvon, OH23,000
Avon Lake City PWSAvon Lake, OH22,998
Barberton CityNorton, OH29,550
Bedford City PWSBedford, OH13,074
Bellefontaine City PWSBellefontaine, OH13,370
Belmont County Sanitary District 3 PWSBellaire, OH24,387
Berea City PWSBerea, OH17,900
Bexley City PWSBexley, OH13,650
Bowling Green CityBowling Green, OH31,216
Brown County Rural WaterRipley, OH22,818
Buckeye Water District - Ohio RiverWellsville, OH10,300
Bucyrus CityBucyrus, OH12,362
Butler County Water District 2 Public Water SystemHamilton, OH109,988
Canton Public Water SystemCanton, OH98,260
Celina CityCelina, OH11,682
Chillicothe City PWSChillicothe, OH21,899
More

Utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 in Ohio

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
ByesvilleByesville, OH4,615120
West Farmington Village Public Water SystemWest Farmington, OH77597
Green Springs VillageGreen Springs, OH1,24778
Hamden Village Public Water SystemHamden, OH97071
Valley View Mobile Home ParkUrbana, OH7059
Cordles Mobile Home ParkLondon, OH4057
Ayersville Water and Sewer DistrictDefiance, OH1,61056
Henry County Regional Water & Sewer District - McclureNapoleon, OH86154
Arcadia Village WaterArcadia, OH59441
Brunersburg Water District - AirportDefiance, OH4040
Greenlawn CondosSpringfield, OH19038
Dfc Mobile Home ParkWarren, OH8534
Alliance City PWSAlliance, OH22,23230
Northwestern W and Sd-wtln 200Bowling Green, OH8,44530
Columbus Grove VillageColumbus Grove, OH2,13723
Seasons Rehab and Care CenterStow, OH7822
Nelsonville Public Water SystemNelsonville, OH5,81622
Continental VillageContinental, OH1,15321
Bucyrus CityBucyrus, OH12,36221
Whitehouse VillageWhitehouse, OH4,14920
Swanton VillageSwanton, OH3,69020
Columbus Public Water SystemColumbus, OH1,159,81720
Washingtonville Village Public Water SystemWashingtonville, OH80120
Put-in-bay VillagePut-in-bay, OH70019
Sebring Village Public Water SystemSebring, OH8,10018
Vermilion CityVermiliion, OH10,59418
Hamler VillageHamler, OH57516
Choctaw Utilities Inc.London, OH2,00016
Leetonia Village Public Water SystemLeetonia, OH1,95916
Guernsey County Water DepartmentCambridge, OH9,98115

Large utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 in Ohio

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
Alliance City PWSAlliance, OH22,23230
Bucyrus CityBucyrus, OH12,36221
Columbus Public Water SystemColumbus, OH1,159,81720
Vermilion CityVermiliion, OH10,59418
Lima CityLima, OH65,61914
City of CambridgeCambridge, OH10,63512
Montgomery County Water ServicesKettering, OH96,49812
Wright State UniversityDayton, OH21,24311
Xenia City PWSXenia, OH26,00010
Greenville City PWSGreenville, OH13,22310
Cleveland Public Water SystemCleveland, OH1,262,9559
Galion CityGalion, OH10,1756
Stow Public Water SystemStow, OH34,3946
Oregon CityOregon, OH20,2916
Lake County East Water SubdistrictPainesville, OH37,4564
Aqua Ohio - StruthersStruthers, OH47,0003
Buckeye Water District - Ohio RiverWellsville, OH10,3002
Erie County Perkins DistrictSandusky, OH27,1922
Sylvania CitySylvania, OH21,4442
North Ridgeville City PWSNorth Ridgeville, OH29,4652
Fairborn Public Water SystemFairborn, OH32,3522
Western Water CompanyGoshen, OH40,6511
Ashland CityAshland, OH20,6481
Trenton City PWSTrenton, OH12,0001
Findlay CityFindlay, OH41,2021
Sidney City PWSSidney, OH21,2291
Reynoldsburg City PWSReynoldsburg, OH35,8931
Wooster City PWSWooster, OH26,6191
Greene County. - Northwest Reg. WaterXenia, OH37,4031
Tupper Plains/Chester Water DistrictReedsville, OH15,6021

Contaminants found in Ohio above health guidelines

Found above health guidelinesFound
Contaminant# of UtilitiesPeople Served# of UtilitiesPeople Served

Bromodichloromethane
1,06210,003,5821,06210,003,582

Total trihalomethanes (TTHMs)
1,0629,995,8591,06510,060,174

Dibromochloromethane
1,0549,985,8951,0559,995,896

Chloroform
9849,892,4921,0739,993,782

Dichloroacetic acid
8129,572,6969559,865,897

Trichloroacetic acid
6358,507,7947489,125,776

Nitrate
6268,383,5337419,081,671

Chromium (hexavalent)
2747,787,4133118,451,924

Nitrate and nitrite
4607,142,6905577,618,316

Bromoform
6486,193,1369099,264,842

Radium, combined (-226 & -228)
3672,517,3303712,585,713

1,4-Dioxane
8945,6661203,576,640

Chlorate
44819,6001846,570,853

Atrazine
39510,4311042,724,575

Arsenic
146446,625146446,625

Perfluorooctane sulfonate (PFOS)
8349,9318349,931

Strontium
13192,5903488,957,088

Chlorite
10101,44610122,696

Perfluorooctanoic acid (PFOA)
484,927484,927

Tetrachloroethylene (perchloroethylene)
1676,18417102,803

Simazine
268,095992,609,156

1,2,3-Trichloropropane
623,900623,900

Trichloroethylene
419,6471060,831

Perfluorohexane sulfonate (PFHXS)
116,551116,551

Perfluoroheptanoic acid (PFHPA)
116,551116,551

Bromate
211,982211,982

Molybdenum
110,8673248,313,826

Barium
108,6318966,509,430

Manganese
95,00042501,727

Cadmium
24,33424,334

Benzo[a]pyrene
22,28822,288

Carbon tetrachloride
3656528,285

Thallium
14811481

Chloromethane
31651883,503

Mercury (inorganic)
1145723,829

Vinyl chloride
13926,439

Contaminants found in Ohio above legal limits

Contaminant# of UtilitiesPeople Served

Total trihalomethanes (TTHMs)
89,695

Arsenic
140