Water quality for ZIP code 85138
ZIP 85138 covers Maricopa and Casa Blanca 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 |
|---|---|---|---|---|
| GW Santa Cruz Water Maricopa SW Maricopa |
1,848 | 1 | 2.4 mi | |
| GW Santa Cruz Water -Twin Hawks Water Maricopa |
64 | 2 | 2.4 mi | |
| New Saddleback Vista Maricopa |
100 | 4 | 3.4 mi | |
| GW Santa Cruz Water CO Maricopa |
84,000 | 7 | 3.6 mi | |
| Copper Mountain Ranch Cfd Maricopa |
1,071 | 4 | 4.4 mi | |
| Maricopa Consolidated Dwid Maricopa |
928 | 4 | 5.2 mi | |
| Papago Butte Dwid Maricopa |
700 | 4 | 6.8 mi | |
| Thunderbird Farms Dwid Maricopa |
2,315 | 2 | 7.6 mi | |
| Valle Escondido Maricopa |
405 | 7 | 8.8 mi | |
| Arizona Water CO Stanfield Casa Grande |
628 | 1 | 9.3 mi | |
| Maricopa Mountain Dwid 1 Stanfield |
450 | 2 | 10.1 mi | |
| Maricopa Mountain Dwid 2 Stanfield |
120 | 0 | 10.1 mi | |
| American Realty Mortgage Company Maricopa |
60 | 0 | 11.3 mi | |
| Sierra Vista RV Park Casa Grande |
160 | 4 | 11.6 mi | |
| Awc Casa Grande West Water Company Casa Grande |
951 | 0 | 12.6 mi | |
| Antelope Peak Dwid Stanfield |
150 | 6 | 12.6 mi | |
| GW Santa Cruz Water CP Water CO Casa Grande |
37 | 1 | 14.9 mi | |
| Awc Casa Grande South Water Company Casa Grande |
176 | 1 | 19.1 mi | |
| The Oaks Mobile Home Park Superior |
180 | 2 | 20.7 mi | |
| Signal Peak Water Company Coolidge |
99 | 4 | 22.0 mi | |
| Picacho Water Company Casa Grande |
2,440 | 3 | 24.3 mi | |
| Arizona Water CO Tierra Grande Casa Grande |
1,819 | 1 | 25.6 mi | |
| Sunland Water Company Arizona City |
227 | 1 | 25.8 mi | |
| Epcor San Tan Johnson Ranch |
87,435 | 3 | 27.2 mi | |
| Eloy City of Eloy |
8,999 | 6 | 28.0 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.