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EWG's Tap Water Database

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Ohio

  • 1,209 Utilities

  • Serving: 10,192,000

  • Data available: 2010-2015

  • Contaminants Found: 86

 

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 October 2014 to September 2017 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
Maysville Regional WaterWhite Cottage, OH6,54066
Green Springs VillageGreen Springs, OH1,24766
Cordles Mobile Home ParkLondon, OH4055
Hamden Village Public Water SystemHamden, OH97050
Henry County Regional Water & Sewer District - Co. Rd. PNapoleon, OH5430
Ayersville Water and Sewer DistrictDefiance, OH1,61025
Brunersburg Water District - EvansportDefiance, OH26825
ByesvilleByesville, OH4,61520
Paris Court Mobile Home ParkPiqua, OH7015
Arcadia Village WaterArcadia, OH59415
Choctaw Utilities Inc.London, OH2,00015
Whitehouse VillageWhitehouse, OH4,14911
Peach Grove Mobile Home ParkLouisville, OH4311
West Farmington Village Public Water SystemWest Farmington, OH77511
Brunersburg Water District - AirportDefiance, OH4010
Hamler VillageHamler, OH57510
Guernsey County Water DepartmentCambridge, OH9,98110
Newton Falls CityNewton Falls, OH6,30010
St. Luke Lutheran Community - Portage LaAkron, OH14310
Old Straitsville Water AssociationLogan, OH3,37710
Catalpa Grove Mobile Home ParkSpringfield, OH277
Winona Water SupplyWinona, OH1006
Seasons Rehab and Care CenterStow, OH786
City of CambridgeCambridge, OH10,6355
Continental VillageContinental, OH1,1535
Wellington Village Public Water SystemWellington, OH4,7005
Premier Park Estates LLCMinerva, OH495
Hubbard City Public Water SystemHubbard, OH8,3005
Shawnee, Village ofShawnee, OH6055
Kelleys Island VillageKelleys Island, OH1,0005

Large utilities that accumulated/accrued the most violation points as of October 2014 to September 2017 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
Defiance CityDefiance, OH16,4945
City of CambridgeCambridge, OH10,6355
Muskingum County Water and SewerZanesville, OH10,7881
Vermilion CityVermiliion, OH10,5941
Cuyahoga Falls City PWSCuyahoga Falls, OH49,6521
NAWATipp City, OH24,7661
Jackson County Water Company-WTPJackson, OH13,7591
Middletown City PWSMiddletown, OH48,6941

Contaminants found in Ohio above health guidelines

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

Total trihalomethanes (TTHMs)
98510,025,9671,05410,130,569

Bromodichloromethane
98110,024,66698110,024,666

Dibromochloromethane
97510,023,69597610,024,845

Chloroform
9699,951,08398710,012,105

Dichloroacetic acid
7589,532,1077999,686,207

Chromium (hexavalent)
2937,923,9233378,621,894

Trichloroacetic acid
5927,723,9976138,837,715

Bromoform
6195,919,6797338,646,252

Radium-228
3954,159,8803964,159,910

1,4-Dioxane
11961,0351353,649,526

Chlorate
46823,9252106,726,310

Atrazine
66683,337902,459,377

Perfluorooctane sulfonate (PFOS)
8391,4318391,431

Simazine
9204,406842,469,423

Radium-226
56204,39263219,765

Strontium
14195,0473959,173,564

Arsenic
78176,72778176,727

Chlorite
11101,45112131,001

Perfluorooctanoic acid (PFOA)
484,927484,927

Tetrachloroethylene (perchloroethylene)
1468,2171594,836

Manganese
1048,6582467,995

Vinyl chloride
236,319236,319

Trichloroethylene
319,496626,229

Nitrate
1517,8586548,831,973

Perfluorohexane sulfonate (PFHXS)
116,551116,551

Perfluoroheptanoic acid (PFHPA)
116,551116,551

Molybdenum
316,2893638,528,582

Nitrate and nitrite
1012,0114527,094,993

Bromate
111,682111,682

Barium
73,6313854,709,215

Thallium
14811481

Chloromethane
31652292,691

Mercury (inorganic)
1145310,229

1,2,3-Trichloropropane
11251125

Antimony
170170

Contaminants found in Ohio above legal limits

Contaminant# of UtilitiesPeople Served

Total trihalomethanes (TTHMs)
814,085

Arsenic
59,413

Haloacetic acids (HAA5)
1970

Antimony
170