All water systems in Colorado
2,218 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Navajo State Park Archuleta County |
2,015 | 2 | 0 | |
|
LA Salle Town of Weld County |
2,010 | 4 | 1 | |
|
Baca Grande Wsd Saguache County |
2,006 | 0 | 0 | |
|
Kimberly Hills MHP Adams County |
2,005 | 3 | 0 | |
|
Crested Butte South Gunnison County |
2,000 | 0 | 0 | |
|
Mighty Argo Metropolitan District #2 Idaho Springs · Clear Creek County |
2,000 | 2 | 0 | |
|
Creede City of Mineral County |
1,965 | 1 | 0 | |
|
EL Jebel MHP Eagle County |
1,962 | 2 | 0 | |
|
Round Mountain Wsd Custer County |
1,950 | 3 | 1 | |
|
Mountain Wsd Jefferson County |
1,941 | 4 | 0 | |
|
Falcon Area Water and Wastewater El Paso County |
1,926 | 1 | 0 | |
|
Roaring Fork Wsd Garfield County |
1,912 | 2 | 1 | |
|
Wiggins Town of Morgan County |
1,909 | 2 | 1 | |
|
Pine Lakes Ranch Adams County |
1,905 | 0 | 0 | |
|
Kremmling Town of Grand County |
1,859 | 2 | 0 | |
|
Cdot Hanging Lake Rest Area Garfield County |
1,829 | 1 | 0 | |
|
Aspen Ski CO Sundeck Pitkin County |
1,801 | 3 | 0 | |
|
Aspen Park MD Jefferson County |
1,800 | 1 | 0 | |
|
Spring Valley MD NO 1 Elbert County |
1,788 | 0 | 0 | |
|
Friendly Village of Aurora MHP Adams County |
1,786 | 0 | 0 | |
|
Ignacio-Southern Ute Rural Water System County |
1,777 | 0 | 0 | |
|
Vail Assoc Far E Shelter Eagle County |
1,758 | 0 | 0 | |
|
Woodland Hills MHC Thornton · Adams County |
1,740 | 0 | 0 | |
|
Timber Ridge MHP Larimer County |
1,736 | 1 | 0 | |
|
Fun Valley Resort Rio Grande County |
1,723 | 1 | 0 | |
|
Aristocrat Ranchette Water Project Weld County |
1,715 | 3 | 1 | |
|
Buena Vista Correctional Facility Chaffee County |
1,700 | 3 | 0 | |
|
Norwood Water Commission San Miguel County |
1,700 | 3 | 0 | |
|
Forest Lakes MD La Plata County |
1,699 | 1 | 0 | |
|
Boulder Meadows MHP Boulder County |
1,657 | 0 | 0 | |
|
Deer Trail Town of Arapahoe County |
1,648 | 1 | 0 | |
|
Dolores Town of Montezuma County |
1,626 | 0 | 0 | |
|
Front Range Broomfield County |
1,620 | 2 | 2 | |
|
Avondale Wsd Pueblo County |
1,615 | 0 | 0 | |
|
Ralston Valley Wsd Jefferson County |
1,610 | 1 | 0 | |
|
Lake Durango WA La Plata County |
1,577 | 0 | 0 | |
|
Cbmr Paradise Warming House Gunnison County |
1,530 | 0 | 0 | |
|
Vail Mountain Coffee and Tea Clear Creek County |
1,528 | 0 | 0 | |
|
Echo Lake Lodge Clear Creek County |
1,510 | 1 | 0 | |
|
Hillcrest Village MHP Adams County |
1,505 | 1 | 0 | |
|
Eagle River Village MHP Eagle County |
1,500 | 1 | 0 | |
|
Eastgate Village Manufactured Homes Adams County |
1,500 | 0 | 0 | |
|
May Valley WA Prowers County |
1,500 | 3 | 0 | |
|
Redwood Estates Thornton · Adams County |
1,500 | 0 | 0 | |
|
Walden Wsd El Paso County |
1,500 | 1 | 0 | |
|
Ouray City of Ouray County |
1,460 | 7 | 0 | |
|
East Alamosa Alamosa County |
1,453 | 1 | 0 | |
|
Steamboat II MD Routt County |
1,450 | 8 | 1 | |
|
Foxridge Farms MHP Arapahoe County |
1,440 | 4 | 0 | |
|
Del Norte Town of Rio Grande County |
1,429 | 4 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
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.