Public water system record
Colebrook Water Works
Serves Colebrook, Coos County, NH · 1,300 people served
Federal records show no health-based violations and 9 monitoring/reporting issues for Colebrook Water Works in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 9
Key facts
- Colebrook Water Works draws water from 2 wells.
- Record on file since 1995, with 4 health-based violations before October 19, 2016.
Check whether Colebrook Water Works serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
RPT
|
Sep 11, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2025 | Resolved |
|
E. coli
Monitoring and reporting
|
Dec 10, 2022 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Dec 6, 2015 | Active |
|
Public Notice
OTHER
|
Dec 6, 2015 | Active |
|
Public Notice
OTHER
|
Feb 19, 2008 | Active |
|
Public Notice
OTHER
|
Feb 19, 2008 | Active |
Full record since 1995
EPA's records for Colebrook Water Works go back to 1995. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 59 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 22 |
| 2000s | 2 | 30 |
| 2010 to October 18, 2016 | 2 | 7 |
| 2020s | 0 | 5 |
Most recent health-based violation before October 19, 2016: Arsenic, began April 2016, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.044 mg/L, federal limit 0.01 mg/L (4.4 times the limit)
|
Apr 1, 2016 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2015 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Aug 15, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2002 | Resolved |
Where the water comes from
Colebrook Water Works draws water from 2 wells. 1 smaller public system such as schools, businesses or campgrounds buys water from Colebrook Water Works.
Annual water quality report
Colebrook Water Works must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New Hampshire.
Certified drinking water labs by state EPA guidance for private wells