Tapcensus

E. coli (Escherichia coli) violations in Ohio

37 active public water systems in Ohio had a E. coli (Escherichia coli) violation in the past three years, 35 of them in the latest quarter of EPA's data. What E. coli (Escherichia coli) is and why it matters.

Health effects: Most E. coli strains cause diarrheal illness. Some strains (e.g., O157:H7) produce toxins causing severe bloody diarrhea, hemolytic uremic syndrome (HUS — a form of kidney failure), and death — especially in children under 5 and the elderly. Even non-pathogenic strains in drinking water indicate that disease-causing organisms may also be present.

Systems with a E. coli (Escherichia coli) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
McArthur, Village of
Vinton County 		1,920 4 1
Sims and Murry Marathon PWS
Clark County 		750 1 1
Mohican Wilderness Camp
Knox County 		300 3 2
St. Nicholas Catholic Church
Darke County 		230 1 1
Dollar General #31418 Ravenna
Portage County 		223 1 1
Tic Toc Food Mart #203
Mahoning County 		220 1 1
Dayton Ohio FM Group
Miami County 		219 1 1
Fowlers Mill Golf Clubhouse
Geauga County 		200 4 2
Spring Valley Outdoors, INC
Guernsey County 		200 2 1
Tall Timber Lake Camp Camper Sites
Tuscarawas County 		200 1 1
Springfield House Mimis House of Littles
Clark County 		185 7 5
VFW Post 5047
Stark County 		162 4 2
St. Teresa of Infant Jesus PWS
Miami County 		150 2 2
Wooster Congregation of Jehovah Witnesse
Wayne County 		150 3 2
Caston and Main PWS
Summit County 		147 2 1
Willow Lake Park
Trumbull County 		110 3 3
Condo Camping Public Water System
Logan County 		100 3 3
Kruger Plaza PWS
Summit County 		100 4 2
Camp Obannon
Licking County 		95 2 0
New Life Church Pjbc PWS
Shelby County 		85 1 1
Paradise United Church of Christ
Mahoning County 		75 1 1
The Virtues Golf Club Osborn 14th
Licking County 		75 1 1
Hickory Flat Golf Course
Coshocton County 		60 3 1
Triple Bean Coffee Company and Pizza PWS
Licking County 		56 4 2
Camp Beaumont, Bsa Camp B PWS
Ashtabula County 		50 2 2
Camp Beaumont, Bsa Cub Scout World PWS
Ashtabula County 		50 2 2
Ginghamsburg Umc South PWS
Miami County 		50 2 2
Hillbilly Hideaway Camp
Harrison County 		50 2 2
Days Inn Tiffin
Seneca County 		43 3 1
Budget Inn
Summit County 		40 2 1
University Hospitals Medical Building 2
Geauga County 		40 1 1
Motel 6 Fremont
Sandusky County 		37 3 0
Don-El Motel
Summit County 		32 1 1
4-H Camp Piedmont Well 2 PWS
Belmont County 		25 3 3
Carolaura Farm, Ltd PWS
Hamilton County 		25 1 1
Dollar General #24617 New Carlisle
Clark County 		224 1 0
The Brown Bean
Logan County 		25 1 0
About this data

A system is counted once if any of its violations in the past three years involved E. coli (Escherichia coli), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not E. coli (Escherichia coli) alone.

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.