LANCASTER WATER DEPT
PWS ID: NH1291010 · LANCASTER, New Hampshire 03584
Population Served
2,450
Total Violations
217
Health-Based Violations
23
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 975
- County
- Coos
- School/Daycare
- No
- MCL Violations
- 22
- Monitoring Violations
- 180
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MCL | 16 | 2018 |
| Nitrate | MR | 15 | 1995 |
| Coliform (TCR) | MCL | 6 | 1995 |
| Arsenic | MR | 5 | 1995 |
| cis-1,2-Dichloroethylene | MR | 5 | 1995 |
| Cadmium | MR | 5 | 1995 |
| Chromium | MR | 5 | 1995 |
| DICHLOROMETHANE | MR | 5 | 1995 |
| CYANIDE | MR | 5 | 1995 |
| Fluoride | MR | 5 | 1995 |
| Vinyl chloride | MR | 5 | 1995 |
| trans-1,2-Dichloroethylene | MR | 5 | 1995 |
| Antimony, Total | MR | 5 | 1995 |
| 1,1,1-Trichloroethane | MR | 5 | 1995 |
| Carbon tetrachloride | MR | 5 | 1995 |
| 1,2-Dichloropropane | MR | 5 | 1995 |
| Trichloroethylene | MR | 5 | 1995 |
| Styrene | MR | 5 | 1995 |
| 1,1,2-Trichloroethane | MR | 5 | 1995 |
| p-Dichlorobenzene | MR | 5 | 1995 |
| Nickel | MR | 5 | 1995 |
| 1,2-Dichloroethane | MR | 5 | 1995 |
| o-Dichlorobenzene | MR | 5 | 1995 |
| Benzene | MR | 5 | 1995 |
| CHLOROBENZENE | MR | 5 | 1995 |
| 1,2,4-Trichlorobenzene | MR | 5 | 1995 |
| Selenium | MR | 5 | 1995 |
| Barium | MR | 5 | 1995 |
| 1,1-Dichloroethylene | MR | 5 | 1995 |
| Ethylbenzene | MR | 5 | 1995 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.