MOBIL 10977
PWS ID: NH0198140 · WALTHAM, New Hampshire 02453
Population Served
50
Total Violations
26
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Hillsborough
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 18
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 14 | 2013 |
| Revised Total Coliform Rule | MCL | 4 | 2021 |
| Revised Total Coliform Rule | RPT | 4 | 2022 |
| Revised Total Coliform Rule | MON | 4 | 2022 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.