All water systems in Ohio
12 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Dayton, City Of-Ottawa Plant Montgomery County |
236,000 | 0 | 0 | |
|
Putnam County-North Ottawa Putnam County |
343 | 0 | 0 | |
|
The Hitching Post Ottawa · Putnam County |
203 | 0 | 0 | |
|
Putnam CO Mrdd-Brookhill Center Ottawa · Putnam County |
162 | 0 | 0 | |
|
Indian Knoll Subdivision Ottawa · Putnam County |
150 | 1 | 1 | |
|
Putnam County-East Ottawa Putnam County |
80 | 1 | 1 | |
|
Ottawa River Church of God Columbus Grove · Putnam County |
74 | 0 | 0 | |
|
Putnam Co-Hidden Timbers Ottawa · Putnam County |
50 | 0 | 0 | |
|
Frog Town Elevator Ottawa · Putnam County |
40 | 0 | 0 | |
|
Ottawa Stone Compnay Putnam County |
35 | 0 | 0 | |
|
Ottawa Nat Wildlife Ref1 Oak Harbor · Ottawa County |
25 | 0 | 0 | |
|
Ottawa Nat Wildlife Refuse #2 Ottawa County |
25 | 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.