All water systems in Colorado
2,218 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Cloverleaf Colorado LLC Larimer County |
1,007 | 3 | 0 | |
|
Log Lane Village Town of Morgan County |
1,006 | 3 | 0 | |
|
Aspen Ski CO Cliff House Pitkin County |
1,002 | 0 | 0 | |
|
Cdot Grizzly Creek Rest Area Garfield County |
1,001 | 1 | 0 | |
|
Alta Convenience NO 6152 Jefferson County |
1,000 | 0 | 0 | |
|
Byers Wsd Arapahoe County |
1,000 | 1 | 0 | |
|
Homestead WC Jefferson County |
1,000 | 4 | 0 | |
|
Longview MHP Weld County |
1,000 | 3 | 0 | |
|
Mile HI Water INC Hauler Boulder County |
1,000 | 3 | 2 | |
|
North Lincoln Wsd Jefferson County |
1,000 | 1 | 1 | |
|
Ridgway Town of Ouray County |
1,000 | 5 | 1 | |
|
Vail Assoc Blue Sky Basin Warming Hut Eagle County |
1,000 | 0 | 0 | |
|
Winter Park Resort Vasquez Ridge Grand County |
999 | 1 | 0 | |
|
Brook Forest WD Jefferson County |
998 | 5 | 1 | |
|
Stillwater CG Grand County |
990 | 0 | 0 | |
|
Poudre Valley MHC Larimer County |
985 | 4 | 3 | |
|
Antonito Town of Conejos County |
981 | 3 | 0 | |
|
Manassa Town of Conejos County |
976 | 3 | 1 | |
|
Ski Cooper Lake County |
973 | 1 | 0 | |
|
Keystone la Bontes Cabin Summit County |
972 | 0 | 0 | |
|
Haxtun Town of Phillips County |
963 | 1 | 0 | |
|
Stratton Town of Kit Carson County |
960 | 3 | 0 | |
|
Breckenridge Ski Corp Peak 9 Summit County |
950 | 0 | 0 | |
|
Oak Creek Town of Routt County |
950 | 9 | 0 | |
|
Parker Evangelical Pres Church Pepc Douglas County |
950 | 1 | 0 | |
|
Collins Aire MHC Larimer County |
946 | 4 | 2 | |
|
Durango West MD NO 2 La Plata County |
930 | 2 | 1 | |
|
Park Forest El Paso County |
930 | 4 | 1 | |
|
Marshdale Elem School Jefferson County |
920 | 1 | 0 | |
|
Debeque Town of Mesa County |
911 | 7 | 0 | |
|
Fast Market NO 4591 El Paso County |
911 | 0 | 0 | |
|
Kiowa Water and Wastewater Authority Elbert County |
910 | 2 | 0 | |
|
Fairplay Town of Park County |
909 | 2 | 0 | |
|
Alta Convenience NO 6104 Douglas County |
906 | 0 | 0 | |
|
Arbordale Acres MHP Boulder County |
901 | 5 | 0 | |
|
Bents Fort WC Otero County |
900 | 3 | 1 | |
|
Garden Valley El Paso County |
900 | 8 | 2 | |
|
Rmnp Headquarters East Larimer County |
900 | 2 | 0 | |
|
Bow Mar Wsd Arapahoe County |
899 | 0 | 0 | |
|
Boulder Ridge MHP Boulder County |
897 | 0 | 0 | |
|
Two Rivers Village Eagle County |
896 | 0 | 0 | |
|
Midlands Village Mesa County |
893 | 0 | 0 | |
|
Arapahoe Basin Ski Area Midway Lodge Summit County |
890 | 0 | 0 | |
|
Hugo Town of Lincoln County |
885 | 3 | 0 | |
|
Quail Hill Mobile Home Park El Paso County |
878 | 0 | 0 | |
|
San Juan River Village MD Archuleta County |
877 | 0 | 0 | |
|
Highland Lakes WD Teller County |
875 | 7 | 2 | |
|
Nucla Town of Montrose County |
875 | 5 | 0 | |
|
Adams County Parks Adams County |
868 | 3 | 1 | |
|
Countryside Village of Denver Adams County |
863 | 0 | 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.