GRASMERE WATER PCT/MAIN
PWS ID: NH0911020 · GOFFSTOWN, New Hampshire 03045
Population Served
1,125
Total Violations
41
Health-Based Violations
20
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 552
- County
- Hillsborough
- School/Daycare
- No
- MCL Violations
- 16
- Monitoring Violations
- 17
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 12 | 2005 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2012 |
| Groundwater Rule | TT | 4 | 2018 |
| Coliform (TCR) | MCL | 4 | 1996 |
| TTHM | MR | 4 | 2012 |
| Coliform (TCR) | MR | 3 | 1996 |
| Lead and Copper Rule | MR | 2 | 1993 |
| Consumer Confidence Rule | Other | 2 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.