Water quality for ZIP code 85143
ZIP 85143 covers San Tan Valley and Florence in Pinal County, Arizona, one of 29 ZIP codes in the county. 95 active public water systems serve the county; 80 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 Pinal County
63 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Skyline Resort RV Park Magma |
375 | 6 | 2.2 mi | |
| Sun Valley Farms Unit VI Queen Creek |
600 | 7 | 3.2 mi | |
| Epcor San Tan Anthem Johnson Ranch |
10,362 | 2 | 6.9 mi | |
| Pinal County Justice Complex Florence |
820 | 6 | 8.7 mi | |
| Whispering Wind Mobile Home Park Coolidge |
200 | 4 | 10.8 mi | |
| Florence Water Company Florence |
14,593 | 5 | 11.3 mi | |
| Arizonian RV Resort Apache Junction |
225 | 6 | 12.2 mi | |
| Adoc Florence Asp Florence |
1,001 | 8 | 12.5 mi | |
| Arizona Water CO Apache Junction Apache Junction |
62,055 | 0 | 13.3 mi | |
| Adoc Eyman Unit Florence |
3,969 | 8 | 13.9 mi | |
| Apache Junction Water District Apache Junction |
15,610 | 6 | 15.6 mi | |
| Queen Valley Dwid Superior |
1,200 | 1 | 16.1 mi | |
| Signal Peak Water Company Coolidge |
99 | 4 | 16.9 mi | |
| Desert Gardens RV Resort Co-Op, INC Florence |
532 | 2 | 17.2 mi | |
| Arizona Training Program Coolidge |
470 | 8 | 17.5 mi | |
| Tonto Basin Water Cactus Forest Florence |
730 | 0 | 18.5 mi | |
| Arizona Water CO Tierra Grande Casa Grande |
1,819 | 1 | 20.0 mi | |
| The Oaks Mobile Home Park Superior |
180 | 2 | 20.7 mi | |
| Northern Section 4 Coop Apache Junction |
48 | 6 | 20.9 mi | |
| Arizona Water CO Superior Superior |
4,232 | 0 | 21.4 mi | |
| Park Water Company INC Florence |
427 | 4 | 21.7 mi | |
| Arizona Water CO Pinal Valley Casa Grande |
134,432 | 2 | 21.9 mi | |
| GW Santa Cruz Water CP Water CO Casa Grande |
37 | 1 | 22.4 mi | |
| Cca Eloy Complex Eloy |
8,852 | 3 | 23.8 mi | |
| Picacho Water Company Casa Grande |
2,440 | 3 | 23.9 mi |
Non-community systems in Pinal County (31: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Pinal 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 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.