HUMBOLDT WATER SYSTEM
PWS ID: AZ0413052 · MAYER, Arizona 86333
Population Served
825
Total Violations
239
Health-Based Violations
34
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 414
- County
- Yavapai
- School/Daycare
- No
- MCL Violations
- 34
- Monitoring Violations
- 192
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 81 | 2014 |
| Arsenic | MCL | 30 | 2015 |
| Chlorine | MR | 13 | 2013 |
| Consumer Confidence Rule | Other | 9 | 2017 |
| Lead and Copper Rule | MR | 8 | 2008 |
| Coliform (TCR) | MR | 4 | 2004 |
| Nitrate | MCL | 4 | 2012 |
| Fluoride | MR | 3 | 1992 |
| DICHLOROMETHANE | MR | 2 | 1998 |
| o-Dichlorobenzene | MR | 2 | 1998 |
| p-Dichlorobenzene | MR | 2 | 1998 |
| trans-1,2-Dichloroethylene | MR | 2 | 1998 |
| 1,1,1-Trichloroethane | MR | 2 | 1998 |
| Carbon tetrachloride | MR | 2 | 1998 |
| 1,1,2-Trichloroethane | MR | 2 | 1998 |
| Tetrachloroethylene | MR | 2 | 1998 |
| Ethylbenzene | MR | 2 | 1998 |
| TTHM | MR | 2 | 2004 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2004 |
| Selenium | MR | 2 | 1989 |
| 1,1-Dichloroethylene | MR | 2 | 1998 |
| Barium | MR | 2 | 1989 |
| Cadmium | MR | 2 | 1989 |
| Chromium | MR | 2 | 1989 |
| Trichloroethylene | MR | 2 | 1998 |
| Mercury | MR | 2 | 1989 |
| Arsenic | MR | 2 | 1989 |
| Toluene | MR | 2 | 1998 |
| Styrene | MR | 2 | 1998 |
| 1,2-Dichloroethane | MR | 2 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.