KOFA CO-OP
PWS ID: AZ0414096 · YUMA, Arizona 85365
Population Served
300
Total Violations
61
Health-Based Violations
7
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Public/Private
- Connections
- 154
- County
- Yuma
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 33
- Treatment Tech Violations
- 7
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | RPT | 19 | 2025 |
| Nitrate | MR | 13 | 2023 |
| Coliform (TCR) | MR | 9 | 2015 |
| Revised Total Coliform Rule | TT | 7 | 2018 |
| Public Notice | Other | 2 | 2024 |
| Revised Total Coliform Rule | MON | 2 | 2024 |
| E. COLI | MR | 2 | 2022 |
| Selenium | MR | 1 | 1988 |
| Fluoride | MR | 1 | 1988 |
| Mercury | MR | 1 | 1988 |
| Arsenic | MR | 1 | 1988 |
| Barium | MR | 1 | 1988 |
| Chromium | MR | 1 | 1988 |
| Cadmium | MR | 1 | 1988 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.