Tapcensus

All water systems in Ohio

4,165 systems

SystemServesStatusRules violated, 3 yrUnresolved
Groveport Municipal Golf Course PWS
Franklin County 		175 0 0
Kepler Investments
Summit County 		175 0 0
Lawrenceville Church of God PWS
Clark County 		175 0 0
Los Venados Mexican Restaurant
Portage County 		175 3 0
Marks Landing PWS
Columbiana County 		175 0 0
Mawmaw's Diner
Holmes County 		175 0 0
Mercer CO Elks Club 2170
Mercer County 		175 1 0
Obetz Satellite 4 PWS
Franklin County 		175 1 0
Ohio Farms Packing Co. PWS
Wayne County 		175 2 1
Pine Tree Barn, Inc.
Wayne County 		175 1 0
Rosedale Bible Institute
Madison County 		175 2 1
Southern Perry Co-Mainesville
Perry County 		175 1 0
ST Anthony Catholic Church
Mercer County 		175 0 0
Studebaker's Country Restaurant PWS
Champaign County 		175 0 0
The Pines Golf Club PWS
Wayne County 		175 0 0
University of Findlay-South Campus
Hancock County 		175 0 0
Wayne MHP LP
Warren County 		175 3 2
Zion Mennonite Church
Holmes County 		175 1 1
Cabbage Patch Convenience Store
Paulding County 		174 0 0
Camp Toodik PWS
Holmes County 		174 2 1
Wayne County Care Center
Wayne County 		173 4 2
Arbors at Mifflin
Richland County 		172 0 0
Louisville Center for Rehabilitation
Stark County 		172 1 1
Advanced Drainage Systems Butler
Butler County 		171 0 0
Hillcrest Golf Course
Licking County 		171 0 0
Abc Country Camping and Cabins
Carroll County 		170 0 0
Aqua Ohio Mansfield System #08
Richland County 		170 0 0
Camp Chof PWS
Stark County 		170 2 0
Caravan Village MHP
Pickaway County 		170 3 1
Edinburg United CH School
Portage County 		170 1 0
Greentree Mobile Home Park
Madison County 		170 1 1
Heritage Fellowship Church
Clark County 		170 0 0
Indian Trails Resort
Logan County 		170 0 0
Irongate Equestrian Center PWS
Licking County 		170 1 1
Lighthouse Christian Center
Darke County 		170 1 1
Sons of Herman
Stark County 		170 0 0
ST John Lutheran School-Napoleon
Henry County 		170 0 0
St. Teresa Catholic Church
Mercer County 		170 0 0
Tamer Win Golf Course
Trumbull County 		170 0 0
Willow Run Golf Course
Licking County 		170 1 1
Hcwsd Germano Water and Sewer
Harrison County 		169 1 1
Hexpol Compounding Burton PWS
Geauga County 		169 1 0
Rose Villa Restaurant
Summit County 		169 0 0
Wooster Rolling Wheels Estates MHP
Wayne County 		169 3 1
Cardinal Operating Company 1/ 2 PWS
Jefferson County 		168 0 0
Cortland Moose Lodge
Trumbull County 		168 2 1
Marlboro Church of Christ
Stark County 		168 0 0
Welshfield Inn
Geauga County 		168 0 0
Alive Vineyard
Licking County 		167 0 0
Jerusalem Evangelical Lutheran Daycare
Medina County 		167 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.