Water quality in Keystone, Indiana
Keystone is in Wells County. 24 active public water systems serve the county; 13 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Wells County
4 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Ossian Municipal Water Department Ossian |
3,289 | 1 | |
| Kozy Kourt Dba Silo Farms Ossian |
325 | 0 | |
| Homestead Water Association Ossian |
50 | 0 | |
| Stoney Creek Estates Mhc, LLC Zanesville |
45 | 5 |
Non-community systems in Wells County (19: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Southern Wells Jr./sr. High Well 1 Poneto |
980 | 1 | 0 | |
|
Bummies B & K Root Beer Bluffton |
962 | 1 | 0 | |
|
Norwell High School Ossian |
900 | 0 | 0 | |
|
Apostolic Christian Church Bluffton |
800 | 1 | 0 | |
|
Norwell Middle School Ossian |
720 | 0 | 0 | |
|
Ouabache State Park Main Supply |
608 | 0 | 0 | |
|
Ouabache State Park Youth Tent Bluffton |
600 | 0 | 0 | |
|
Bethlehem Lutheran School Ossian |
556 | 0 | 0 | |
|
Southern Wells Community Church Poneto |
191 | 0 | 0 | |
|
Sonlight Wesleyan Church Bluffton |
155 | 1 | 1 | |
|
Truland Equipment, LLC Bluffton |
148 | 6 | 0 | |
|
Murray Missionary Church Bluffton |
130 | 2 | 0 | |
|
Clean Fuels National Keystone |
100 | 4 | 1 | |
|
Haven Manufacturing Indiana Ossian |
45 | 2 | 0 | |
|
Peytons Northern Satellite 102 Bluffton |
40 | 2 | 1 | |
|
Southern Wells Ele and Agri – Well 2b Poneto |
40 | 0 | 0 | |
|
Lighted Gardens, Inc. Ossian |
32 | 1 | 0 | |
|
Covenant Chapel Bluffton |
28 | 0 | 0 | |
|
Liberty Center Gas & Deli Liberty Center |
28 | 1 | 0 |
About this data
Water systems are matched to Wells County, largest 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.
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 Indiana 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.