Water quality for ZIP code 81146
Alamosa County, Colorado, one of 3 ZIP codes in the county. 17 active public water systems serve the county; 12 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Alamosa County
3 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| East Alamosa |
1,453 | 1 | 13.7 mi | |
| Alamosa City of |
11,271 | 0 | 15.0 mi | |
| Wagon Wheel MHP |
160 | 3 | — |
Non-community systems in Alamosa County (13: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rustic Rook Resort Mosca |
49 | 0 | 0 | |
|
Great Sand Dunes Oasis |
33 | 1 | 0 | |
|
Great Sand Dunes Lodge |
40 | 2 | 1 | |
|
Sangre de Cristo Lane Seven School |
445 | 0 | 0 | |
|
Splashland LLC |
150 | 3 | 1 | |
|
Ramble CG Alamosa |
601 | 1 | 0 | |
|
Base Camp Family Campground |
35 | 0 | 0 | |
|
Great Sand Dunes HQ |
1,400 | 2 | 0 | |
|
Great Sand Dunes Pinon Flats CG |
250 | 0 | 0 | |
|
Colorado Gators |
110 | 4 | 0 | |
|
Alamosa Migrant & Seasonal Head Start |
109 | 2 | 1 | |
|
KOA Alamosa |
99 | 1 | 0 | |
|
San Luis Valley RV Resort |
66 | 2 | 0 |
About this data
Water systems are matched to Alamosa County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.