Water quality in Flagstaff, Arizona
Flagstaff is in Coconino County. 115 active public water systems serve the county; 96 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 Coconino County
37 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| CS West Village Water Company Flagstaff |
210 | 7 | 3.3 mi | |
| Hidden Hollow MHC Flagstaff |
400 | 3 | 3.9 mi | |
| Mountain Dell Water INC Flagstaff |
250 | 4 | 4.3 mi | |
| Heckethorn Water Company Flagstaff |
90 | 6 | 4.7 mi | |
| CS Flagstaff Ranch Water Company Flagstaff |
350 | 7 | 5.4 mi | |
| Lake Mary Country Store Flagstaff |
130 | 4 | 6.5 mi | |
| Majestic View Water Improvement District Fort Valley |
70 | 8 | 7.6 mi | |
| Doney Park Water Flagstaff |
9,222 | 1 | 7.9 mi | |
| Forest Highlands Water Company Flagstaff |
1,681 | 2 | 7.9 mi | |
| Ponderosa Utility Corp Flagstaff |
1,585 | 3 | 8.2 mi | |
| Kachina Village Dwid Flagstaff |
3,500 | 1 | 8.3 mi | |
| Utility Source LLC Bellemont |
1,710 | 4 | 11.6 mi | |
| A1 Ranch Dwid Flagstaff |
45 | 5 | 12.5 mi | |
| Arizona Water CO Pinewood Munds Park |
8,115 | 0 | 18.0 mi | |
| Oak Creek Utility Corp Oak Creek Canyon |
72 | 4 | 20.9 mi | |
| Living Springs MHP Rainbow Trout Farm Oak Creek Canyon |
100 | 5 | 21.5 mi | |
| Lockett Estates Flagstaff |
30 | 4 | 22.0 mi | |
| CS Mormon Lake Water Company Mormon Lake |
353 | 3 | 22.2 mi | |
| Tall Pines Estates Water Mormon Lake |
156 | 1 | 22.4 mi | |
| Arizona Water CO Sedona Sedona |
12,104 | 1 | 25.8 mi | |
| Bearizona Williams |
1,423 | 6 | 30.1 mi | |
| Williams City of Williams |
3,145 | 7 | 31.9 mi | |
| Usfs Knf Tusayan Admin Tusayan |
80 | 6 | 32.2 mi | |
| Grand Canyon Junction Hydro Valle |
430 | 6 | 42.9 mi | |
| Sage Valley MHP Tusayan |
55 | 4 | 45.9 mi |
Non-community systems in Coconino County (77: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Coconino County, nearest to Flagstaff 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 Arizona 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.