USFS CNF COLUMBINE
PWS ID: AZ0405606 · TUCSON, Arizona 85701
Population Served
50
Total Violations
34
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Federal
- Connections
- 8
- County
- Graham
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 34
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 17 | 2014 |
| Nitrate | MR | 10 | 2023 |
| Chromium | MR | 1 | 1987 |
| Arsenic | MR | 1 | 1987 |
| Mercury | MR | 1 | 1987 |
| Selenium | MR | 1 | 1987 |
| Cadmium | MR | 1 | 1987 |
| Barium | MR | 1 | 1987 |
| Fluoride | MR | 1 | 1987 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.