Fluoride violations in Indiana
15 active public water systems in Indiana had a Fluoride violation in the past three years. What Fluoride is and why it matters.
Systems with a Fluoride violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Speedway Water Works Speedway · Marion County |
10,578 | 4 | 0 | |
|
Cedar Lake Water Works Cedar Lake · Lake County |
4,600 | 8 | 0 | |
|
Lagrange Department of Water Works Lagrange · LaGrange County |
2,625 | 6 | 0 | |
|
Westport Water Company Westport · Decatur County |
1,725 | 6 | 0 | |
|
Freelandville Water Association Freelandville · Knox County |
1,175 | 6 | 0 | |
|
St. Paul Municipal Water St. Paul · Decatur County |
1,096 | 8 | 3 | |
|
Cedar Lake Robins Nest Schererville · Lake County |
950 | 6 | 0 | |
|
Laurel Water Department Laurel · Franklin County |
800 | 7 | 1 | |
|
Linden Water Department Linden · Montgomery County |
759 | 8 | 1 | |
|
Skyview Mobile Home Park Goshen · Elkhart County |
84 | 5 | 0 | |
|
Zionsville MHP Trust Zionsville · Boone County |
57 | 12 | 2 | |
|
Lynn Hill Court & Charles Manor Monticello · White County |
44 | 7 | 2 | |
|
Big Oaks Campground Muncie · Delaware County |
37 | 6 | 2 | |
|
Davis Mobile Home Park Bartholomew County |
35 | 6 | 1 | |
|
Waubee Lake Mobile Home Park Milford · Kosciusko County |
30 | 9 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Fluoride, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Fluoride alone.
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.