EHRENBERG IMPROVEMENT DISTRICT
PWS ID: AZ0415497 · EHRENBERG, Arizona 85334-0050
Population Served
989
Total Violations
240
Health-Based Violations
5
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 318
- County
- La Paz
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 206
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 46 | 2009 |
| Chlorine | MR | 40 | 2024 |
| TTHM | MR | 20 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 17 | 2023 |
| Consumer Confidence Rule | Other | 15 | 2015 |
| Lead and Copper Rule | MR | 8 | 2017 |
| Nitrate | MR | 7 | 2000 |
| E. COLI | MR | 5 | 2018 |
| Chromium | MR | 3 | 1989 |
| Barium | MR | 3 | 1989 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 1989 |
| Arsenic | MR | 3 | 1989 |
| Selenium | MR | 3 | 1989 |
| Cadmium | MR | 3 | 1989 |
| Fluoride | MR | 3 | 1989 |
| Mercury | MR | 3 | 1989 |
| TTHM | MCL | 2 | 2007 |
| Public Notice | Other | 2 | 2022 |
| Coliform (TCR) | MCL | 2 | 2000 |
| Endrin | MR | 2 | 1999 |
| BHC-GAMMA | MR | 2 | 1999 |
| Toxaphene | MR | 2 | 1999 |
| Methoxychlor | MR | 2 | 1999 |
| 2,4-D | MR | 2 | 1999 |
| 2,4,5-TP | MR | 2 | 1999 |
| Surface Water Treatment Rule | MR | 2 | 2020 |
| Interim Enhanced Surface Water Treatment Rule | MR | 2 | 2020 |
| Dalapon | MR | 1 | 1999 |
| Diquat | MR | 1 | 1999 |
| OXAMYL | MR | 1 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.