Water quality in Lake Tomahawk, Ohio
Lake Tomahawk is in Columbiana County. 114 active public water systems serve the county; 57 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Columbiana County
16 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| East Palestine Village PWS |
4,761 | 1 | 6.1 mi | |
| New Waterford Village PWS |
1,238 | 1 | 6.1 mi | |
| East Liverpool City |
12,586 | 2 | 7.3 mi | |
| Lisbon Village |
2,821 | 3 | 8.8 mi | |
| Columbiana City PWS |
6,727 | 1 | 9.8 mi | |
| Leetonia Village PWS |
1,833 | 1 | 11.7 mi | |
| Breezeway Mobile Manor |
46 | 1 | 12.2 mi | |
| Washingtonville Village PWS |
801 | 3 | 13.9 mi | |
| Columbiana County-County Home RD PWS |
200 | 1 | 14.5 mi | |
| Buckeye Water District Ohio River |
10,300 | 3 | 15.8 mi | |
| Guilford Highlands Mobile Home Park PWS |
103 | 1 | 16.1 mi | |
| Guilford Lake Estates |
130 | 1 | 16.2 mi | |
| Salem City |
16,850 | 1 | 16.5 mi | |
| Auburn Skilled Nursing & Rehabilitation |
50 | 2 | 21.1 mi | |
| Deer Run MC |
106 | 1 | 21.1 mi | |
| Premier Park Estates LLC |
60 | 0 | 24.9 mi |
Non-community systems in Columbiana County (97: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Columbiana County, nearest to Lake Tomahawk first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.