All water systems in Ohio
4,165 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Walnut Creek Planing PWS Holmes County |
160 | 0 | 0 | |
|
Walnut Grove Methodist Church PWS Hardin County |
160 | 0 | 0 | |
|
Arnies West Branch Steak Portage County |
158 | 0 | 0 | |
|
Family Dollar Beloit #29180 PWS Mahoning County |
158 | 0 | 0 | |
|
Mesopotamia Elementary School Trumbull County |
158 | 0 | 0 | |
|
Pleasant Acres Mobile Home Community LLC Marion County |
158 | 0 | 0 | |
|
The Beach Stop Market Fairfield County |
158 | 0 | 0 | |
|
East Palestine Country Club Columbiana County |
157 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Witnesses-Troy Miami County |
157 | 0 | 0 | |
|
4-H Camp Palmer Fulton County |
156 | 0 | 0 | |
|
Dairy Queen-Edinburg Portage County |
156 | 1 | 0 | |
|
Kozy Kamp Ground Mercer County |
156 | 0 | 0 | |
|
Wengers Produce Logan County |
156 | 0 | 0 | |
|
Westville Lake C. C., Inc. Columbiana County |
156 | 0 | 0 | |
|
Hi-Road Drive-In Theater Hardin County |
155 | 1 | 1 | |
|
Mac-O-Chee PWS Logan County |
155 | 0 | 0 | |
|
Passion Church Portage County |
155 | 0 | 0 | |
|
ST John the Baptist Catholic Church PWS Allen County |
155 | 1 | 1 | |
|
The Schnipke Engraving Company Putnam County |
155 | 1 | 0 | |
|
West Independence UM Church Hancock County |
155 | 2 | 0 | |
|
Willow Rest Trailer Park Summit County |
155 | 1 | 1 | |
|
Brumbaugh Fruit Farm PWS Darke County |
154 | 0 | 0 | |
|
Cedar Creek MHP Richland County |
154 | 0 | 0 | |
|
Cheton Plaza PWS Summit County |
154 | 1 | 0 | |
|
Friendship Acres Campground Portage County |
154 | 2 | 0 | |
|
New Beginnings Farm Licking County |
154 | 0 | 0 | |
|
Pleasant Hill Golf Course Richland County |
154 | 1 | 0 | |
|
Shepherd's Pasture Campground Defiance County |
154 | 0 | 0 | |
|
Causeway Campground Columbiana County |
153 | 0 | 0 | |
|
Dollar General #20433 Shauck Mansfield Morrow County |
153 | 0 | 0 | |
|
Little Chippewa Estates Wayne County |
153 | 0 | 0 | |
|
4-H Camp Clifton, Inc. Greene County |
152 | 1 | 0 | |
|
Camp Glen Seneca County |
152 | 2 | 1 | |
|
Walnut Grove Campground NO 1 Seneca County |
152 | 2 | 0 | |
|
Dutch Harbor Marina Portage County |
151 | 0 | 0 | |
|
Elkhorn Valley Christ Camp Carroll County |
151 | 1 | 0 | |
|
Indian Hills 4h Camp PWS Miami County |
151 | 2 | 0 | |
|
Obetz Satellite 1 PWS Franklin County |
151 | 2 | 1 | |
|
1010 Bible Church PWS Hancock County |
150 | 0 | 0 | |
|
Arrowhead Campground Darke County |
150 | 0 | 0 | |
|
Arrowpoint Campground-East PWS Holmes County |
150 | 0 | 0 | |
|
Auglaize Golf Club Paulding County |
150 | 0 | 0 | |
|
Ballerz Sports Club Wayne County |
150 | 0 | 0 | |
|
Basil Place PWS Geauga County |
150 | 0 | 0 | |
|
Beech Creek Botanical Gardens PWS Stark County |
150 | 2 | 1 | |
|
Bethany Baptist Church-Grand Rapids Lucas County |
150 | 0 | 0 | |
|
Bethel Cleveland PWS Medina County |
150 | 0 | 0 | |
|
Birchwood Manor MHC New Portage County |
150 | 2 | 1 | |
|
Birdseye Barn PWS Summit County |
150 | 1 | 0 | |
|
Blackberry Corners Ottawa County |
150 | 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.