Colorado
San Miguel County drinking water quality
20 active public water systems serve 22,054 people in San Miguel County. 5 are compliant, 15 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 0 carry a health flag.
Needs attention
Community water systems
12 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mountain Village Town of |
9,700 | 3 | 0 | |
|
Telluride Town of |
7,900 | 6 | 0 | |
|
Norwood Water Commission |
1,700 | 3 | 0 | |
|
Aldasoro Ranch Hoc |
412 | 3 | 0 | |
|
Ilium Valley WS |
322 | 2 | 1 | |
|
Wilson Mesa |
290 | 6 | 0 | |
|
Ophir Town of |
193 | 9 | 1 | |
|
San Bernardo HOA |
132 | 3 | 0 | |
|
Elk Run Homeowners Corporation |
125 | 1 | 0 | |
|
Last Dollar Pud |
96 | 3 | 1 | |
|
Sawpit Town of |
59 | 0 | 0 | |
|
Telluride Pines HOA |
25 | 8 | 0 |
Non-community systems (8: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Telluride Regional Airport |
485 | 4 | 1 | |
|
Bivvi Hostel |
162 | 1 | 0 | |
|
Down Valley Park |
125 | 0 | 0 | |
|
Telluride Ski Lift 5 |
106 | 0 | 0 | |
|
Placerville Park |
100 | 0 | 0 | |
|
Matterhorn CG |
50 | 1 | 0 | |
|
Sunshine CG |
46 | 1 | 1 | |
|
Woods Lake CG |
26 | 0 | 0 |
Inactive systems (18, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.