DIAMOND VALLEY WATER DISTRICT
PWS ID: AZ0413017 · HUMBOLDT, Arizona 86327
Population Served
2,000
Total Violations
120
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 775
- County
- Yavapai
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 88
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 38 | 2023 |
| Coliform (TCR) | MR | 19 | 2015 |
| Consumer Confidence Rule | Other | 16 | 2013 |
| TTHM | MR | 8 | 2012 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2012 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 1989 |
| Lead and Copper Rule | MR | 2 | 2009 |
| Revised Total Coliform Rule | MON | 2 | 2017 |
| Nitrate | MR | 1 | 1979 |
| Barium | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MCL | 1 | 1989 |
| Cadmium | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
| Mercury | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.