SPHINX MOUNTAIN MB HM PK
PWS ID: MT0003755 · GARDINER, Montana 59030
Population Served
52
Total Violations
101
Health-Based Violations
38
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 19
- County
- Park
- School/Daycare
- No
- MCL Violations
- 38
- Monitoring Violations
- 60
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 19 | 2008 |
| Carbofuran | MR | 18 | 2020 |
| Coliform (TCR) | MCL | 15 | 2006 |
| Arsenic | MCL | 13 | 2009 |
| Lead and Copper Rule | MR | 11 | 2015 |
| Gross Alpha, Excl. Radon and U | MCL | 10 | 2010 |
| E. COLI | MR | 7 | 2012 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2010 |
| Consumer Confidence Rule | Other | 3 | 2011 |
| Nitrate | MR | 1 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.