Fluoride violations in Colorado
31 active public water systems in Colorado had a Fluoride violation in the past three years, 4 of them in the latest quarter of EPA's data. 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 |
|---|---|---|---|---|
|
Chemical Materials Activity West Pueblo County |
3,000 | 8 | 0 | |
|
Heartwood CO OP Housing La Plata County |
60 | 9 | 1 | |
|
Pacheco Trailer Park Rio Grande County |
36 | 13 | 3 | |
|
Deep Creek Mountain Valley Estates Mineral County |
31 | 11 | 4 | |
|
Monument Town of El Paso County |
5,740 | 1 | 0 | |
|
Grand County Water NO 1 Grand County |
5,400 | 11 | 0 | |
|
Battlement Mesa MD Garfield County |
4,100 | 6 | 0 | |
|
Yuma City of Yuma County |
4,049 | 6 | 2 | |
|
Granada Town of Prowers County |
515 | 12 | 1 | |
|
Encompass Preschool Parker · Douglas County |
364 | 7 | 2 | |
|
Monarch Mountain Lodge Chaffee County |
247 | 14 | 5 | |
|
Mountaindale CG and Cabins Fremont County |
228 | 8 | 0 | |
|
Roaring Fork MHP Pitkin County |
200 | 10 | 0 | |
|
Altman Plants El Paso County |
188 | 8 | 1 | |
|
Westcreek Lakes WD Douglas County |
165 | 8 | 2 | |
|
Mountain Prairie LLC Bent County |
126 | 5 | 0 | |
|
Castlewood Community Preschool Douglas County |
125 | 9 | 0 | |
|
Willow Brook Metro District Summit County |
120 | 9 | 0 | |
|
United Church of Christ Parker Hilltop Parker · Douglas County |
95 | 8 | 0 | |
|
Ridgewood WD Teller County |
84 | 5 | 0 | |
|
Steamboat Mountain School Routt County |
83 | 8 | 0 | |
|
MT Princeton HOA Chaffee County |
79 | 2 | 0 | |
|
Hartman Town of Prowers County |
61 | 13 | 6 | |
|
Saddle Ridge Ranch Estates WC Gunnison County |
55 | 2 | 0 | |
|
Town of Winter Park Lift Transit Wts Winter Park · Grand County |
55 | 2 | 0 | |
|
Western Metals Recycling Englewood · Arapahoe County |
45 | 7 | 0 | |
|
Saddlehorn Ranch MD El Paso County |
39 | 8 | 1 | |
|
Vallecito Village La Plata County |
34 | 7 | 2 | |
|
G and M Mobile Home Park Rio Grande County |
30 | 11 | 0 | |
|
Ranch at Coulter Creek HOA Garfield County |
27 | 10 | 0 | |
|
Mustang Water Authority Montrose County |
0 | 7 | 1 |
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 Colorado 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.