All water systems in Ohio
441 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
San.engr,eastlake Water Subdis Lake County |
58,500 | 0 | 0 | |
|
Odnr-Pike Lake State Park Pike County |
5,000 | 0 | 0 | |
|
Odnr-East Harbor State Park PWS Lakeside · Ottawa County |
4,000 | 0 | 0 | |
|
Medina Co/chippewa Lake PWS Medina County |
3,273 | 0 | 0 | |
|
Lakeside Association PWS Lakeside · Ottawa County |
2,300 | 0 | 0 | |
|
Caretaker,lake Isabella,well 3 Muskingum County |
2,000 | 0 | 0 | |
|
Prin,lake Jr.high School Wood County |
1,724 | 0 | 0 | |
|
Cinnamon Lake Utilities Assoc INC Ashland County |
1,522 | 0 | 0 | |
|
Caretaker,lake Isabella,well 2 Muskingum County |
1,500 | 0 | 0 | |
|
Mgr,oh Dnr Lake Hope St.park Vinton County |
1,500 | 0 | 0 | |
|
Lake Lorelei Regional Water PWS Fayetteville · Brown County |
1,392 | 0 | 0 | |
|
Timberlake Water and Sewer Dist PWS County |
1,100 | 0 | 0 | |
|
Mgr, Cowan Lake State Park-Ofc Clinton County |
1,000 | 0 | 0 | |
|
Mgr,cowan Lake State Park-Ofce Clinton County |
1,000 | 0 | 0 | |
|
Odnr-Lake Hope State Par Zaleski · Vinton County |
1,000 | 0 | 0 | |
|
Round-Up Lake-Bronco Portage County |
1,000 | 0 | 0 | |
|
Round-Up Lake-Honey Hut Mantua · Portage County |
1,000 | 0 | 0 | |
|
Round-Up Lake-Pool Mantua · Portage County |
1,000 | 0 | 0 | |
|
Lake High School Uniontown · Stark County |
932 | 0 | 0 | |
|
Buckeye Lake Valero PWS Licking County |
900 | 0 | 0 | |
|
Lake Middle School Hartville · Stark County |
877 | 0 | 0 | |
|
Shadow Lake Village MHP Mason · Warren County |
857 | 0 | 0 | |
|
Wendys Buckeye Lake Licking County |
824 | 0 | 0 | |
|
Mgr,tappan Lake Park Harrison County |
800 | 0 | 0 | |
|
Burger King Buckeye Lake Buckeye Lake · Licking County |
720 | 0 | 0 | |
|
Lakewood JR High School Hebron · Licking County |
720 | 0 | 0 | |
|
Geauga Lake Campground Portage County |
700 | 0 | 0 | |
|
Hidden Lakes Campground Morrow County |
700 | 0 | 0 | |
|
Lakewood Swim-Athletc CL Urbana · Champaign County |
700 | 0 | 0 | |
|
Senate Lake Park Stark County |
700 | 0 | 0 | |
|
Indian Lake High School Lewistown · Logan County |
658 | 0 | 0 | |
|
Lake Elementary School Stark County |
613 | 0 | 0 | |
|
Odnr-Portage Lake State Park-Beach PWS Akron · Summit County |
600 | 0 | 0 | |
|
Odnr-Portage Lake State Park-Office PWS Akron · Summit County |
600 | 0 | 0 | |
|
Portage Lakes Career Ctr Greensburg · Summit County |
600 | 0 | 0 | |
|
Lakefront Marina Ottawa County |
592 | 0 | 0 | |
|
Lakeview Middle School Cortland · Trumbull County |
586 | 0 | 0 | |
|
Lakewood High School Hebron · Licking County |
507 | 0 | 0 | |
|
Mgr,oh Dnr,veto Lake Washington County |
500 | 0 | 0 | |
|
Mgr,ohio Dnr,piedmont Lake Belmont County |
500 | 0 | 0 | |
|
Mgr,tappan Lake Pk-Camp Harrison County |
500 | 0 | 0 | |
|
Odnr-Kiser Lake Beach Concession Columbus · Champaign County |
500 | 0 | 0 | |
|
Prin,lake Cable Elem.school Stark County |
500 | 0 | 0 | |
|
Taco Bell-Buckeye Lake Licking County |
500 | 0 | 0 | |
|
Valley View Lake Park-1 Medina County |
500 | 0 | 0 | |
|
Valley View Lake Park-2 Medina County |
500 | 0 | 0 | |
|
Coshocton Lake Park-Recreation PWS Coshocton County |
484 | 0 | 0 | |
|
Big Turtle Lakes Campgrd,mgr. Warren County |
480 | 0 | 0 | |
|
Lake of the Wood Water CO Delaware County |
475 | 0 | 0 | |
|
Principal,indian Lake Elem. Washington Twp · Logan County |
458 | 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 currently 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.