Toluene violations in Colorado
72 active public water systems in Colorado had a Toluene violation in the past three years, 4 of them in the latest quarter of EPA's data. What Toluene is and why it matters.
Systems with a Toluene 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 | |
|
Parkville WD Lake County |
7,500 | 2 | 0 | |
|
Hotchkiss Town of Delta County |
2,050 | 4 | 0 | |
|
EL Jebel MHP Eagle County |
1,962 | 2 | 0 | |
|
Ouray City of Ouray County |
1,460 | 7 | 0 | |
|
Haxtun Town of Phillips County |
963 | 1 | 0 | |
|
Oak Creek Town of Routt County |
950 | 9 | 0 | |
|
Adams County Parks Adams County |
868 | 3 | 1 | |
|
Durango la Plata Airport La Plata County |
780 | 8 | 0 | |
|
Cottonwood Springs MHP Garfield County |
750 | 2 | 0 | |
|
Granada Town of Prowers County |
515 | 12 | 1 | |
|
Saguache Town of Saguache County |
504 | 9 | 1 | |
|
Eureka WC Otero County |
498 | 9 | 1 | |
|
Valley Maint Corp NO 1 Teller County |
470 | 7 | 2 | |
|
Belleview Christian College Adams County |
460 | 3 | 0 | |
|
Aldasoro Ranch Hoc San Miguel County |
412 | 3 | 0 | |
|
Steamboat Lake WD Routt County |
411 | 5 | 0 | |
|
Gardner Water and Sanitation Dist Huerfano County |
400 | 7 | 2 | |
|
Encompass Preschool Parker · Douglas County |
364 | 7 | 2 | |
|
Idledale Wsd Jefferson County |
350 | 8 | 1 | |
|
Sierra Grande School District Costilla County |
304 | 7 | 0 | |
|
Aspen Village MD Pitkin County |
300 | 8 | 0 | |
|
Jamestown Town of Boulder County |
280 | 7 | 1 | |
|
Larkspur Town of Douglas County |
275 | 4 | 1 | |
|
Monarch Mountain Lodge Chaffee County |
247 | 14 | 5 | |
|
Sedalia Wsd Douglas County |
215 | 1 | 0 | |
|
Curecanti Nra Elk Creek Gunnison County |
206 | 2 | 0 | |
|
Paradox Pipeline CO Montrose County |
200 | 6 | 0 | |
|
Roaring Fork MHP Pitkin County |
200 | 10 | 0 | |
|
Bear Creek Loa Conejos County |
190 | 2 | 0 | |
|
Altman Plants El Paso County |
188 | 8 | 1 | |
|
Lazear Domestic WC Delta County |
178 | 8 | 2 | |
|
Deserado Mine Rio Blanco County |
175 | 4 | 0 | |
|
Security MHP El Paso County |
150 | 3 | 0 | |
|
Sleepy Bear MHP Routt County |
150 | 9 | 0 | |
|
Seaboard Foods LLC Yuma County |
132 | 2 | 0 | |
|
Galambs Mobile Home and RV Park Adams County |
130 | 6 | 3 | |
|
Mountain Prairie LLC Bent County |
126 | 5 | 0 | |
|
Castlewood Community Preschool Douglas County |
125 | 9 | 0 | |
|
Dallas Meadows Community Assoc Ouray County |
120 | 5 | 0 | |
|
Ute Pass WA INC La Plata County |
120 | 6 | 1 | |
|
Willow Brook Metro District Summit County |
120 | 9 | 0 | |
|
Kim Town of Las Animas County |
116 | 6 | 4 | |
|
Marble WC Gunnison County |
113 | 6 | 0 | |
|
Patterson Valley WC Otero County |
96 | 6 | 1 | |
|
United Church of Christ Parker Hilltop Parker · Douglas County |
95 | 8 | 0 | |
|
Eden Valley Institute Larimer County |
91 | 11 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Toluene, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Toluene 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.