CROTCHED MOUNTAIN SCHOOL
PWS ID: NH0972010 · GREENFIELD, New Hampshire 03047
Population Served
300
Total Violations
195
Health-Based Violations
37
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 22
- County
- Hillsborough
- School/Daycare
- No
- MCL Violations
- 28
- Monitoring Violations
- 134
- Treatment Tech Violations
- 9
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 12 | 2011 |
| TTHM | MCL | 12 | 2025 |
| Coliform (TCR) | MR | 10 | 2012 |
| Consumer Confidence Rule | Other | 8 | 2023 |
| Chlorine | MR | 6 | 2014 |
| Total Haloacetic Acids (HAA5) | MR | 6 | 2014 |
| TTHM | MR | 6 | 2014 |
| Public Notice | Other | 6 | 2025 |
| Groundwater Rule | TT | 5 | 2023 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2003 |
| Combined Radium (-226 and -228) | MR | 4 | 2003 |
| Lead and Copper Rule | TT | 4 | 2017 |
| Lead and Copper Rule | MR | 4 | 2021 |
| Total Haloacetic Acids (HAA5) | MCL | 4 | 2024 |
| Revised Total Coliform Rule | RPT | 4 | 2025 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2010 |
| cis-1,2-Dichloroethylene | MR | 2 | 2010 |
| Toxaphene | MR | 2 | 2010 |
| DICHLOROMETHANE | MR | 2 | 2010 |
| Glyphosate | MR | 2 | 2010 |
| Di(2-ethylhexyl) adipate | MR | 2 | 2010 |
| p-Dichlorobenzene | MR | 2 | 2010 |
| OXAMYL | MR | 2 | 2010 |
| Vinyl chloride | MR | 2 | 2010 |
| Simazine | MR | 2 | 2010 |
| Di(2-ethylhexyl) phthalate | MR | 2 | 2010 |
| trans-1,2-Dichloroethylene | MR | 2 | 2010 |
| Picloram | MR | 2 | 2010 |
| 1,2-Dichloroethane | MR | 2 | 2010 |
| Carbofuran | MR | 2 | 2010 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.