County · Arizona
Pinal County, Arizona: drinking water records
This overview covers 29 ZIP codes and 66 community water systems in Pinal County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Epcor - San Tan AZ0411128 | 87,435 | 420 | 0 | 1 | 0 ppb |
| Gw Santa Cruz Water Co AZ0411131 | 84,000 | 120 | 0 | 1 | 0 ppb |
| Florence Water Company AZ0411017 | 15,900 | 270 | 3 | 1 | 0 ppb |
| Apache Junction Water District AZ0411039 | 15,610 | 120 | 0 | 5 | 0 ppb |
| Ak-Chin Village 090400090 | 11,646 | 120 | 1 | 2 | 1 ppb |
| Eloy City of AZ0411030 | 7,903 | 120 | 0 | 2 | 1.8 ppb |
| Arizona Water Co - San Manuel AZ0411020 | 4,748 | 60 | 0 | 1 | 0 ppb |
| Adoc Eyman Unit AZ0411705 | 3,969 | 60 | 0 | 4 | 1.3 ppb |
| Copper Mountain Ranch Cfd AZ0411328 | 1,071 | 60 | 0 | 5 | 0 ppb |
| Adoc Florence Asp AZ0411066 | 1,001 | 120 | 0 | 2 | 2.2 ppb |
| Arizona Water Co - Pinal Valley AZ0411009 | 134,432 | 600 | 6 | 0 | 0 ppb |
| Arizona Water Co - Apache Junction AZ0411004 | 62,055 | 120 | 0 | 0 | 0 ppb |
| Lago del Oro Water Company AZ0411117 | 18,132 | 780 | 2 | 0 | 0 ppb |
| Arizona Water Co - Oracle AZ0411019 | 10,585 | 240 | 0 | 0 | 0 ppb |
| Epcor - San Tan Anthem AZ0411136 | 10,362 | 120 | 6 | 0 | 0 ppb |
| Cca - Eloy Complex AZ0411115 | 8,852 | 120 | 0 | 0 | 0.5 ppb |
| Arizona Water Co - Superior AZ0411021 | 4,393 | 60 | 0 | 0 | 0 ppb |
| Thunderbird Farms Dwid AZ0411100 | 2,231 | 0 | 0 | 4 | 0 ppb |
| Kearny Town of AZ0411031 | 1,950 | 0 | 0 | 2 | 6.3 ppb |
| Arizona Water Co - Tierra Grande AZ0411076 | 1,796 | 0 | 0 | 1 | 0 ppb |
| Mammoth Town of AZ0411018 | 1,181 | 0 | 0 | 1 | 0 ppb |
| Maricopa Consolidated Dwid AZ0411036 | 928 | 0 | 0 | 3 | 0 ppb |
| Pinal County Justice Complex AZ0411560 | 820 | 0 | 0 | 2 | 0 ppb |
| Arizona Water Co - Stanfield AZ0411012 | 639 | 0 | 0 | 1 | 0 ppb |
| Tonto Basin Water - Cactus Forest AZ0411052 | 613 | 0 | 0 | 2 | 0 ppb |
ZIP reports in Pinal County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.