Tapcensus

All water systems in Ohio

4,165 systems

SystemServesStatusRules violated, 3 yrUnresolved
The Chapel & Daycare in Marlboro
Stark County 		298 0 0
Odnr-Buckeye Lake State Park
Fairfield County 		294 0 0
Darbyville Village PWS
Pickaway County 		293 3 1
Fair Haven Shelby County Home
Shelby County 		290 3 1
Raymond Elementary School
Union County 		290 0 0
Stites Discount Grocery Store
Allen County 		290 1 0
Dawes Arboretum
Licking County 		289 0 0
Global Connection Academy
Geauga County 		289 0 0
Monroe Elementary School
Madison County 		287 2 1
Scenic Ridge Church and Christian School
Ashland County 		286 0 0
Journey Life Center Church & College
Richland County 		285 0 0
River Run Hilltop RV Park
Ashland County 		284 3 0
Fostoria Mobile Estates
Seneca County 		281 2 1
Aqua Ohio Mansfield System #11
Richland County 		280 1 1
Glenmont Village PWS
Holmes County 		280 3 2
Harvest Fellowship Church PWS
Henry County 		280 0 0
Jacques Mobile Home Park, LLC
Geauga County 		280 1 1
Ports Petroleum
Clark County 		280 1 1
Pure Water System 2 PWS
Noble County 		279 3 2
Cincinnati Incorporated
Hamilton County 		278 0 0
Chester Plaza
Geauga County 		276 0 0
Camp Y Noah-Dining Hall
Summit County 		275 0 0
Dollar General #18765 Shalersville PWS
Portage County 		275 0 0
Foxlair Farms MHP Inc.
Pickaway County 		275 1 1
Free Christian Church of God
Putnam County 		275 0 0
Lockbourne Village PWS
Franklin County 		275 2 1
Odnr-Deer Creek State Park/lodge PWS
Pickaway County 		275 0 0
Odot Rest Area 3-33 East
Richland County 		275 0 0
4-H Camp Ohio-Camp
Licking County 		273 0 0
Skyland Hills MHP
Stark County 		273 1 0
Village Green MHP
Wood County 		272 1 1
Casstown PWS
Miami County 		271 0 0
Buddys Place Convenience Store PWS
Wood County 		270 1 0
Kingsway Christian School PWS
Wayne County 		270 0 0
Perrysburg Estates MHP
Wood County 		270 2 1
The Root Beer Stand
Hamilton County 		270 2 0
Lifesteps Childcare LLC
Franklin County 		269 0 0
Brunersburg WD Evansport PWS
Defiance County 		268 1 1
Green Farms
Stark County 		268 2 1
Logan Landing PWS
Logan County 		268 1 1
Northwestern W and SD SR 108 PWS
Henry County 		267 1 1
Dunfalls Association, Inc.
Muskingum County 		266 4 2
Leonard Park PWS
Franklin County 		266 2 1
Deer Creek Co-Op
Putnam County 		265 0 0
Diamond Hill Cathedral Church
Richland County 		265 0 0
Malinta Village
Henry County 		265 1 1
Rainbow Promise Childcare and Preschool
Defiance County 		263 0 0
Pawpaws Country Mart
Stark County 		261 1 0
Garden Acres Water Company PWS
Clark County 		260 0 0
Odnr-Wingfoot Lake Park
Portage County 		260 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.