Water quality in Phoenix, Arizona
Phoenix is in Maricopa County. 217 active public water systems serve the county; 139 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 Maricopa County
99 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Valley Utilities Water Company Glendale Glendale |
6,003 | 0 | 4.3 mi | |
| Hacienda del Sol MHP Luke Afb |
300 | 2 | 4.3 mi | |
| EL Mirage City of El Mirage |
39,884 | 4 | 5.8 mi | |
| Epcor Sun City Sun City |
38,016 | 0 | 6.1 mi | |
| Olive Avenue HOA Glendale |
25 | 0 | 6.2 mi | |
| Usaf Luke Air Force Base Litchfield Park |
8,440 | 2 | 6.5 mi | |
| Tolleson City of Tolleson |
9,300 | 4 | 6.7 mi | |
| Avondale City of Avondale |
96,130 | 2 | 7.2 mi | |
| Liberty Water Lpsco Litchfield Park |
57,070 | 1 | 7.5 mi | |
| Peoria City of Peoria |
187,676 | 4 | 7.9 mi | |
| Michigan Trailer Park Phoenix |
400 | 2 | 8.4 mi | |
| Adaman Mutual Water Company Adaman |
700 | 8 | 8.5 mi | |
| 67 Ave Property Owners Association Phoenix |
40 | 5 | 9.2 mi | |
| Rose Valley Water Company Phoenix |
6,202 | 1 | 9.6 mi | |
| Phoenix City of Phoenix |
1,695,000 | 2 | 10.1 mi | |
| Epcor Sun City West Sun City West |
25,796 | 0 | 10.4 mi | |
| Epcor Agua Fria Surprise |
128,040 | 5 | 11.0 mi | |
| Sunrise Water Company Peoria |
6,500 | 1 | 11.0 mi | |
| Orangewood Mobile Home Park Phoenix |
500 | 1 | 11.4 mi | |
| Surprise City of Mountain Vista Surprise |
40,007 | 1 | 11.4 mi | |
| Epcor North East Agua Fria Phoenix |
14,723 | 2 | 11.8 mi | |
| Arizona Water CO White Tanks White Tanks |
18,858 | 2 | 13.3 mi | |
| Adjc Adobe Mountain School Phoenix |
680 | 3 | 13.9 mi | |
| Surprise, City of Buena Vista Surprise |
870 | 1 | 14.3 mi | |
| White Tank Well INC Surprise |
87 | 3 | 14.3 mi |
Non-community systems in Maricopa County (117: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Maricopa County, nearest to Phoenix 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.