CHESHIRE COUNTY COMPLEX
PWS ID: NH2494010 · KEENE, New Hampshire 03431
Population Served
380
Total Violations
370
Health-Based Violations
52
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 6
- County
- Cheshire
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 316
- Treatment Tech Violations
- 52
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 24 | 2019 |
| Lead and Copper Rule | TT | 14 | 2017 |
| CARBON, TOTAL | TT | 10 | 2005 |
| Arsenic | MR | 5 | 1996 |
| 1,2,4-Trichlorobenzene | MR | 5 | 1996 |
| BHC-GAMMA | MR | 5 | 1996 |
| cis-1,2-Dichloroethylene | MR | 5 | 1996 |
| Cadmium | MR | 5 | 1996 |
| Xylenes, Total | MR | 5 | 1996 |
| Toxaphene | MR | 5 | 1996 |
| DICHLOROMETHANE | MR | 5 | 1996 |
| CYANIDE | MR | 5 | 1996 |
| o-Dichlorobenzene | MR | 5 | 1996 |
| Fluoride | MR | 5 | 1996 |
| Vinyl chloride | MR | 5 | 1996 |
| Simazine | MR | 5 | 1996 |
| 1,1-Dichloroethylene | MR | 5 | 1996 |
| Selenium | MR | 5 | 1996 |
| Picloram | MR | 5 | 1996 |
| 1,2-Dichloroethane | MR | 5 | 1996 |
| Dinoseb | MR | 5 | 1996 |
| Hexachlorocyclopentadiene | MR | 5 | 1996 |
| Carbon tetrachloride | MR | 5 | 1996 |
| 1,2-Dichloropropane | MR | 5 | 1996 |
| Atrazine | MR | 5 | 1996 |
| LASSO | MR | 5 | 1996 |
| 1,1,2-Trichloroethane | MR | 5 | 1996 |
| Heptachlor epoxide | MR | 5 | 1996 |
| CHLOROBENZENE | MR | 5 | 1996 |
| Benzene | MR | 5 | 1996 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.