GROTON DUNSTABLE REG. H.S.
PWS ID: MA2115010 · GROTON, Massachusetts 01450
Population Served
940
Total Violations
33
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- Middlesex
- School/Daycare
- Yes
- MCL Violations
- 8
- Monitoring Violations
- 12
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 8 | 2015 |
| Coliform (TCR) | MR | 6 | 2003 |
| Radium-228 | MR | 2 | 2004 |
| Lead and Copper Rule | MR | 2 | 2007 |
| Radium-226 | MR | 2 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.