All water systems in Ohio
2,472 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Eldora Speedway Main Concessions PWS Darke County |
3,007 | 0 | 0 | |
|
Muskingum Valley Scout Coshocton County |
3,001 | 2 | 2 | |
|
Mwcd-Atwood Park Carroll County |
2,400 | 0 | 0 | |
|
Odnr Pymatuning State Park Ashtabula County |
2,381 | 0 | 0 | |
|
Mad River Mountain Logan County |
2,135 | 0 | 0 | |
|
Mwcd-Tappan Lake Park Harrison County |
2,012 | 0 | 0 | |
|
Odot Rest Area 1-25 NB Hancock County |
2,000 | 0 | 0 | |
|
7-Eleven Store # 36177 Richland County |
1,650 | 0 | 0 | |
|
Greenford Christian Life Center (c, D,e) Mahoning County |
1,623 | 0 | 0 | |
|
Sports Plex Greene County |
1,502 | 0 | 0 | |
|
Odot Rest Area 1-26 SB Hancock County |
1,500 | 0 | 0 | |
|
Odnr Indian Lake ST PK Campground Logan County |
1,491 | 0 | 0 | |
|
Odot Rest Area 7-26/7-25 PWS Auglaize County |
1,333 | 0 | 0 | |
|
Bellstores #1159 PWS Wayne County |
1,160 | 0 | 0 | |
|
Bell Stores South Marathon Wayne County |
1,083 | 1 | 0 | |
|
Mwcd Charles Mill Lake Park PWS Ashland County |
1,048 | 1 | 0 | |
|
Parkman Market Express Geauga County |
1,020 | 0 | 0 | |
|
Odot Rest Area 1-33 1-34 Wyandot County |
1,001 | 0 | 0 | |
|
Speedway 3512 PWS Geauga County |
1,001 | 0 | 0 | |
|
Eldora Speedway Infield Well PWS Darke County |
1,000 | 0 | 0 | |
|
Eldora Speedway North Well PWS Darke County |
1,000 | 2 | 0 | |
|
Odnr-West Branch-Tower Portage County |
1,000 | 0 | 0 | |
|
Odot / Rest Area 3-35 Wayne County |
1,000 | 0 | 0 | |
|
Odot Rest Area 1-31 EB Allen County |
1,000 | 0 | 0 | |
|
Odot Rest Area 1-32 WB Allen County |
1,000 | 0 | 0 | |
|
Quaker City Motorsports Park PWS Mahoning County |
1,000 | 1 | 1 | |
|
Fuel Mart 767 Wood County |
957 | 0 | 0 | |
|
Odot Rest Area 4-36 Portage County |
905 | 0 | 0 | |
|
Thornville Duke and Duchess PWS Licking County |
904 | 0 | 0 | |
|
Fellowship Bible Church PWS Geauga County |
900 | 0 | 0 | |
|
New Hope Community Church-Bryan Williams County |
900 | 0 | 0 | |
|
The Bell Station Geauga County |
900 | 1 | 0 | |
|
Duke N Duchess 247 PWS Summit County |
893 | 0 | 0 | |
|
Holmesville Bell Stores Holmes County |
881 | 1 | 0 | |
|
End of Commons PWS Trumbull County |
878 | 0 | 0 | |
|
Jenkins Sunoco Service Station Licking County |
877 | 0 | 0 | |
|
Sunoco Food Mart 10 Hop in Wood County |
875 | 0 | 0 | |
|
Damascus Friends Church Columbiana County |
850 | 2 | 1 | |
|
McDonalds Restaurant Chesterland PWS Geauga County |
850 | 0 | 0 | |
|
Seven Ranges Scout Reservation Carroll County |
842 | 1 | 1 | |
|
Mansfield Fuel and Food Richland County |
840 | 0 | 0 | |
|
Beiler's Penn Dutch Market PWS Stark County |
820 | 0 | 0 | |
|
Cvnra Boston, DZ House, MD Garage Summit County |
813 | 0 | 0 | |
|
Jehovah Witness Assembly Hall Madison County |
800 | 2 | 1 | |
|
Round Up, LLC Portage County |
800 | 0 | 0 | |
|
Turn Point Apostolic Church PWS Franklin County |
800 | 0 | 0 | |
|
Walnut Creek Flea Market Exchange PWS Holmes County |
800 | 0 | 0 | |
|
Certified Oil Co-Station 410 PWS Portage County |
766 | 0 | 0 | |
|
Odot Rest Area 1-27 EB Van Wert County |
761 | 0 | 0 | |
|
Odnr Harrison Lake ST PK Fulton County |
760 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Ohio records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.