ASARCO HAYDEN OPERATIONS
PWS ID: AZ0404012 · HAYDEN, Arizona 85135
Population Served
417
Total Violations
129
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Public/Private
- Connections
- 23
- County
- Gila
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 104
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 31 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 18 | 2024 |
| TTHM | MR | 17 | 2024 |
| Chlorine | MR | 11 | 2023 |
| Revised Total Coliform Rule | RPT | 5 | 2024 |
| Groundwater Rule | TT | 4 | 2021 |
| Consumer Confidence Rule | Other | 3 | 2004 |
| Public Notice | Other | 2 | 2021 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1986 |
| Nickel | MR | 1 | 1998 |
| Nitrate | MR | 1 | 2004 |
| Barium | MR | 1 | 1998 |
| Lead and Copper Rule | MR | 1 | 2004 |
| Cadmium | MR | 1 | 1998 |
| CYANIDE | MR | 1 | 1998 |
| Fluoride | MR | 1 | 1998 |
| Antimony, Total | MR | 1 | 1998 |
| trans-1,2-Dichloroethylene | MR | 1 | 1987 |
| cis-1,2-Dichloroethylene | MR | 1 | 1987 |
| DICHLOROMETHANE | MR | 1 | 1987 |
| Ethylbenzene | MR | 1 | 1987 |
| Toluene | MR | 1 | 1987 |
| o-Dichlorobenzene | MR | 1 | 1987 |
| Selenium | MR | 1 | 1998 |
| CHLOROBENZENE | MR | 1 | 1987 |
| Chromium | MR | 1 | 1998 |
| Tetrachloroethylene | MR | 1 | 1987 |
| Arsenic | MR | 1 | 1998 |
| Beryllium, Total | MR | 1 | 1998 |
| Styrene | MR | 1 | 1987 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.