HIDDEN HEIGHTS HOA
PWS ID: MT0002120 · MISSOULA, Montana 59804
Population Served
65
Total Violations
100
Health-Based Violations
21
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 22
- County
- Missoula
- School/Daycare
- No
- MCL Violations
- 21
- Monitoring Violations
- 70
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 34 | 2014 |
| Coliform (TCR) | MCL | 21 | 2006 |
| Coliform (TCR) | MR | 10 | 2011 |
| Consumer Confidence Rule | Other | 5 | 2018 |
| Nitrate | MR | 4 | 1994 |
| Nitrate-Nitrite | MR | 4 | 2018 |
| Revised Total Coliform Rule | MON | 3 | 2018 |
| Cadmium | MR | 2 | 1981 |
| Chromium | MR | 2 | 1981 |
| Selenium | MR | 2 | 1981 |
| Arsenic | MR | 2 | 1981 |
| Mercury | MR | 2 | 1981 |
| Fluoride | MR | 2 | 1981 |
| Barium | MR | 2 | 1981 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1982 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.