DCR PURGATORY CHASM STATE RESERVATION
PWS ID: MA2290021 · BOSTON, Massachusetts 02116
Population Served
300
Total Violations
29
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 2
- County
- Worcester
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 11
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 9 | 2014 |
| Coliform (TCR) | MCL | 6 | 2014 |
| Revised Total Coliform Rule | RPT | 4 | 2018 |
| Revised Total Coliform Rule | MON | 2 | 2019 |
| Revised Total Coliform Rule | TT | 2 | 2016 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.