COLBY POND
PWS ID: NH0582010 · ATKINSON, New Hampshire 03811
Population Served
485
Total Violations
197
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 194
- County
- Rockingham
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 197
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 7 | 2016 |
| Arsenic | MR | 4 | 2014 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2016 |
| Combined Radium (-226 and -228) | MR | 4 | 2016 |
| Barium | MR | 4 | 2014 |
| Chromium | MR | 4 | 2014 |
| CYANIDE | MR | 4 | 2014 |
| Fluoride | MR | 4 | 2014 |
| Mercury | MR | 4 | 2014 |
| Selenium | MR | 4 | 2014 |
| Antimony, Total | MR | 4 | 2014 |
| Beryllium, Total | MR | 4 | 2014 |
| Thallium, Total | MR | 4 | 2014 |
| Cadmium | MR | 4 | 2014 |
| Endrin | MR | 3 | 1997 |
| BHC-GAMMA | MR | 3 | 1997 |
| cis-1,2-Dichloroethylene | MR | 3 | 1997 |
| Methoxychlor | MR | 3 | 1997 |
| Xylenes, Total | MR | 3 | 1997 |
| Glyphosate | MR | 3 | 1997 |
| p-Dichlorobenzene | MR | 3 | 1997 |
| Simazine | MR | 3 | 1997 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 1997 |
| trans-1,2-Dichloroethylene | MR | 3 | 1997 |
| 1,2-Dichloroethane | MR | 3 | 1997 |
| Hexachlorocyclopentadiene | MR | 3 | 1997 |
| Carbon tetrachloride | MR | 3 | 1997 |
| Carbofuran | MR | 3 | 1997 |
| 1,2-Dichloropropane | MR | 3 | 1997 |
| Trichloroethylene | MR | 3 | 1997 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.