MP MINE OPERATIONS LLC
PWS ID: CA3600172 · MOUNTAIN PASS, California 92366
Population Served
626
Total Violations
7
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 9
- County
- San Bernardino
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 3
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Fluoride | MCL | 2 | 1980 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1981 |
| Lead and Copper Rule | MR | 1 | 1993 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.