Water quality in Superior, Colorado
Superior 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
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Boulder County
40 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Louisville City of |
20,975 | 1 | 2.8 mi | |
| East Boulder County WD |
300 | 3 | 3.4 mi | |
| Maple Grove WD |
35 | 3 | 4.1 mi | |
| Sans Souci Cooperative |
150 | 8 | 4.3 mi | |
| Table Mesa Village MHP |
75 | 1 | 4.8 mi | |
| Lafayette City of |
28,700 | 4 | 5.0 mi | |
| Baseline WD |
820 | 1 | 5.1 mi | |
| Lark Meadows WA |
75 | 0 | 5.3 mi | |
| Shannon Wsd |
450 | 0 | 5.6 mi | |
| Hoover Hills Wsd |
662 | 0 | 5.7 mi | |
| Eldorado Municipal System |
308 | 0 | 6.1 mi | |
| Mile HI Water INC Hauler |
1,000 | 3 | 7.5 mi | |
| Boulder City of |
166,080 | 1 | 7.9 mi | |
| San Lazaro Mfctd Housing Community |
844 | 5 | 8.0 mi | |
| Vista Village MHP Boulder |
750 | 1 | 8.1 mi | |
| Erie Town of |
47,444 | 0 | 9.1 mi | |
| Boulder Meadows MHP |
1,657 | 0 | 10.0 mi | |
| Spring Valley Mutual WA |
100 | 1 | 10.6 mi | |
| Pine Brook Hills WD |
1,100 | 0 | 11.4 mi | |
| Left Hand WD |
20,280 | 0 | 12.4 mi | |
| Olde Stage WD |
250 | 1 | 13.9 mi | |
| Lefthand Wsd Lake Pines |
250 | 0 | 15.7 mi | |
| Longmont City of |
104,178 | 0 | 16.6 mi | |
| Countryside of Longmont Longmont |
775 | 2 | 16.7 mi | |
| ST Vrain MHP LLC Longmont |
544 | 0 | 16.7 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 Superior 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. Retrieved from ECHO on Oct 11, 2026.