Public water system record
Pennichuck Water Works
Serves Nashua and Amherst, Hillsborough County, NH · 89,073 people served
Federal records show no health-based violations and no monitoring or reporting issues for Pennichuck Water Works in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Pennichuck Water Works draws water from 3 surface water intakes (1 of them for emergency, seasonal or other part-time use).
- Record on file since 2002, with 1 health-based violation before October 19, 2016.
Check whether Pennichuck 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, and no monitoring or reporting violations either.
Full record since 2002
EPA's records for Pennichuck Water Works go back to 2002. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 1 | 1 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began August 2002, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 2002 | Resolved |
Where the water comes from
Pennichuck Water Works draws water from 3 surface water intakes (1 of them for emergency, seasonal or other part-time use). 2 other community water systems buy water from Pennichuck Water Works. 1 other public water system has an emergency connection to Pennichuck Water Works.
Community systems that buy water from it
- Litchfield Nashua, NH
- Milford Water Utilities Dept Milford, NH
Annual water quality report
Pennichuck 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.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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