Tapcensus

Ohio

Franklin County drinking water quality

99 active public water systems serve 1,506,712 people in Franklin County. 61 are compliant, 38 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 3 carry a health flag.

Active systems 99 31 community systems
People served 1.5M by public water systems
Systems with violations 38 38% of active systems, past 3 years
Serious violators 1 3 systems carry a health flag

Needs attention

Grace Fellowship Center OH2548912 · Non-Transient non-community system · Serves 130 3 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR) and Public Notification Rule.
Grace Evangelical Church OH2565512 · Non-Transient non-community system · Serves 311 2 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR) and Public Notification Rule.
Circle S Farms PWS OH2570715 · Transient non-community system · Serves 150 2 rules violated in the past three years. Unresolved: Public Notification Rule and Revised Total Coliform Rule (RTCR).

Community water systems

31 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Columbus Public Water System
 1,309,468 0 0
Westerville City PWS
 39,000 0 0
Reynoldsburg City PWS
 37,847 1 1
Gahanna City PWS
 33,258 1 0
Bexley City PWS
 14,250 2 1
Jefferson Water and Sewer District PWS
 11,294 1 1
Canal Winchester City PWS
 9,286 1 1
Sanitary District #4
 8,575 2 1
Aqua Ohio Blacklick
 7,100 0 0
Aqua Ohio Huber Ridge PWS
 5,393 0 0
Aqua Ohio Lake Darby
 3,562 0 0
Groveport PWS
 3,229 0 0
Obetz Village PWS
 3,167 3 1
Aqua Ohio Worthington Hills PWS
 2,500 0 0
Timberlake Water System
 1,600 2 1
Obetz Satellite 6 PWS
 1,317 2 1
Obetz Satellite 2 PWS
 1,267 2 1
Aqua Ohio Timberbrook PW
 865 0 0
Enchanted Acres MHP
 750 1 1
Oak Hills Mobile Home Park
 505 2 1
Galloway Water System PWS
 350 0 0
Lockbourne Village PWS
 275 2 1
Leonard Park PWS
 266 2 1
Pleasant Acres MHP
 217 4 2
Ponderosa Estates MHP
 216 0 0
Hayden Heights MHP
 188 3 0
Country Side Mobile Home
 180 0 0
Obetz Satellite 1 PWS
 151 2 1
BY Way Mobile Home Park
 150 0 0
Monterey Care Center
 130 0 0
Community Gardens MHP
 74 3 0
Non-community systems (68: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Mount Carmel Grove City
 1,000 0 0
Turn Point Apostolic Church PWS
 800 0 0
Cedar Ridge Lodge Area PWS
 600 0 0
Covenant Church
 400 0 0
Movement Church of Columbus
 400 0 0
Darbydale Elementary School PWS
 370 3 0
Grace Evangelical Church
 311 2 2
Lifesteps Childcare LLC
 269 0 0
Obetz Satellite 7
 210 0 0
Dollar General #17176 Grove City
 203 0 0
Makoy Center, Inc.
 200 2 1
Obetz Satellite 3 PWS
 200 1 0
Southeast Conservation Club Campground
 200 0 0
Grove City Church of God
 188 3 1
The Darby House
 180 0 0
Groveport Municipal Golf Course PWS
 175 0 0
Obetz Satellite 4 PWS
 175 1 0
Sutphen Corporation
 160 1 0
Brobst Memorial Park PWS
 150 0 0
Circle S Farms PWS
 150 2 2
Darby Nature Center PWS
 150 0 0
Dollar General #16888 Orient
 150 0 0
Homestead Springs Golf Course
 150 0 0
Rocky Fork Metro Park Small Restroom
 150 0 0
Sunoco Food Mart 7563 PWS
 150 0 0
Hickory Hills Golf Club
 144 0 0
M & M Petroleum Dba M & M Food Mart PWS
 132 0 0
Grace Fellowship Center
 130 3 2
Orient Marathon PWS
 130 3 1
Chapel Hill Free Will Baptist Church PWS
 120 1 0
Harvest Assembly of God Church PWS
 120 0 0
Oasis of Love Community Church
 120 1 1
Vineyard Christian Fellowship-Holt PWS
 120 0 0
Vineyard Christian Fellowship-Avery PWS
 105 0 0
Vitality Gymnastics
 105 0 0
Amvets Post 1312 PWS
 100 0 0
Fellowship Baptist Church-Dublin PWS
 100 0 0
Kuhlweins Farm Market PWS
 100 0 0
Thorn Apple Country Club PWS
 100 2 1
New Life Baptist Church PWS
 85 0 0
Grove City Inn PWS
 82 1 1
West Broad Church of the Nazarene PWS
 82 0 0
Lockbourne Freewill Baptist Church
 80 0 0
Russian Baptist Church
 80 1 0
Cypress Student Center
 75 0 0
Rocky Fork Metro Park Main Restroom
 75 0 0
Southeast Conservation Club Clubhouse
 75 0 0
Alton RV Park PWS
 74 0 0
Amlin United Meth. Church New Life Ctr
 71 0 0
Ahmadiyya Mosque PWS
 60 0 0
Rager Road Church of Christ PWS
 60 0 0
Creekside Church
 55 2 1
Mr. Mando Restaurant
 52 0 0
Insurance Auto Auctions INC PWS
 50 0 0
Kirks Farm Market
 50 0 0
Oikos Community Church
 50 0 0
The Golf Club Greens Department PWS
 50 0 0
Todays Church
 50 0 0
Jess Howard Kilowatt Circle PWS
 45 1 0
Stimmel Properties LLC
 40 2 0
The Golf Club PWS
 40 1 0
Dublin Arts Council PWS
 30 0 0
Oak Grove Tavern
 27 0 0
Ten Mile Inn
 27 0 0
Decker Migrant Residence #6239 House
 25 0 0
Decker Migrant Residence 6239 Trailers
 25 0 0
Jess Howard Electric Office
 25 3 1
The Garden Inn PWS
 25 0 0
Inactive systems (285, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

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. Retrieved from ECHO on Oct 11, 2026.