MAMMOTH LAKES BASIN
PWS ID: CA2600729 · BISHOP, California 93514
Population Served
1,000
Total Violations
2
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Federal
- Connections
- 56
- County
- Mono
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 2 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.