Water quality in Ada, Ohio
Ada is in Hardin County. 31 active public water systems serve the county; 15 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 Hardin County
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Hillcrest Estates Mobile Home Court |
49 | 1 | 0.6 mi | |
| Alger Village PWS |
943 | 4 | 4.4 mi | |
| McGuffey Village PWS |
710 | 2 | 5.6 mi | |
| Dunkirk Village PWS |
875 | 2 | 9.6 mi | |
| Kenton City |
8,360 | 3 | 14.2 mi | |
| Forest Village |
1,354 | 2 | 16.6 mi | |
| MT Victory Village PWS |
603 | 1 | 22.7 mi |
Non-community systems in Hardin County (23: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ream-McElroy VFW Post 9381 |
26 | 1 | 1 | |
|
Norada Lanes Bowling Alley |
46 | 2 | 1 | |
|
Ada Full Gospel Church |
25 | 0 | 0 | |
|
Liberty Baptist Church-Ada PWS |
40 | 0 | 0 | |
|
ST Johns Lutheran Church-Dola PWS |
35 | 0 | 0 | |
|
Walnut Grove Methodist Church PWS |
160 | 0 | 0 | |
|
Hi-Road Drive-In Theater |
155 | 1 | 1 | |
|
Grant Fellowship Church PWS |
25 | 0 | 0 | |
|
France Lake and Saulisberry Park |
150 | 0 | 0 | |
|
Salty Longhorn's Bar & Grill LLC PWS |
60 | 0 | 0 | |
|
Little Creek Barn PWS |
340 | 0 | 0 | |
|
Kenton Chris Mission Alliance CH |
110 | 0 | 0 | |
|
First Baptist Church Kenton |
225 | 0 | 0 | |
|
Hardin CO Veterans Memorial PK Golf Crse |
185 | 0 | 0 | |
|
First Church of God Ridgeway |
60 | 0 | 0 | |
|
Trillium Farm Holdings-Mt Victory |
55 | 0 | 0 | |
|
Liberty Oaks Event Venue |
240 | 1 | 0 | |
|
Dollar General Store #20694 Dunkirk PW |
233 | 0 | 0 | |
|
Tresha Corporation PWS |
146 | 1 | 0 | |
|
Kenton Eagles 2163 |
75 | 1 | 0 | |
|
Quickstep Pentecostal Church of God |
65 | 2 | 1 | |
|
Pfeiffer Station General Store |
56 | 0 | 0 | |
|
Ridgemont School Gym/football Field |
30 | 0 | 0 |
About this data
Water systems are matched to Hardin County, nearest to Ada 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.