Water quality in Coal Creek, Colorado
Coal Creek is in Boulder County. 80 active public water systems serve the county; 45 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Boulder County
40 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Nederland Town of |
2,406 | 0 | 8.2 mi | |
| Sans Souci Cooperative |
150 | 8 | 8.2 mi | |
| Table Mesa Village MHP |
75 | 1 | 8.5 mi | |
| Pine Brook Hills WD |
1,100 | 0 | 10.4 mi | |
| Vista Village MHP Boulder |
750 | 1 | 10.4 mi | |
| Spring Valley Mutual WA |
100 | 1 | 10.5 mi | |
| Boulder City of |
166,080 | 1 | 10.6 mi | |
| East Boulder County WD |
300 | 3 | 11.5 mi | |
| Hoover Hills Wsd |
662 | 0 | 11.5 mi | |
| Superior MD NO 1 |
17,900 | 0 | 11.5 mi | |
| San Lazaro Mfctd Housing Community |
844 | 5 | 12.3 mi | |
| Boulder Meadows MHP |
1,657 | 0 | 12.4 mi | |
| Baseline WD |
820 | 1 | 12.6 mi | |
| Louisville City of |
20,975 | 1 | 13.0 mi | |
| Lark Meadows WA |
75 | 0 | 13.4 mi | |
| Mile HI Water INC Hauler |
1,000 | 3 | 13.4 mi | |
| Olde Stage WD |
250 | 1 | 13.8 mi | |
| Ward Town of |
230 | 1 | 13.8 mi | |
| Shannon Wsd |
450 | 0 | 14.4 mi | |
| Jamestown Town of |
280 | 7 | 14.8 mi | |
| Lafayette City of |
28,700 | 4 | 15.1 mi | |
| Maple Grove WD |
35 | 3 | 15.2 mi | |
| Lefthand Wsd Lake Pines |
250 | 0 | 16.6 mi | |
| Left Hand WD |
20,280 | 0 | 19.1 mi | |
| Erie Town of |
47,444 | 0 | 19.2 mi |
Non-community systems in Boulder County (39: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Boulder County, nearest to Coal Creek first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.