GOWAN MILLING LLC
PWS ID: AZ0414513 · SOMERTON, Arizona 85350
Population Served
350
Total Violations
79
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 27
- County
- Yuma
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 59
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MR | 12 | 2025 |
| TTHM | MR | 12 | 2025 |
| Coliform (TCR) | MR | 11 | 2013 |
| Chlorine | MR | 11 | 2024 |
| Lead and Copper Rule | MR | 8 | 2021 |
| Revised Total Coliform Rule | RPT | 4 | 2021 |
| Revised Total Coliform Rule | MON | 3 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| Nitrite | MR | 2 | 2012 |
| Public Notice | Other | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.