Public water system record
Chelmsford Water District
Serves an area of Middlesex County, MA · 28,750 people served
Federal records show no health-based violations and no monitoring or reporting issues for Chelmsford Water District 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
- Chelmsford Water District draws water from 17 wells.
- Most recent formal enforcement: compliance order (no penalty) by Massachusetts, January 1995.
- Record on file since 1991, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 8,823 service lines.
Check whether Chelmsford Water District 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 1991
EPA's records for Chelmsford Water District go back to 1991. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 2 |
| 2010 to October 18, 2016 | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 1991, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 1991 | Archived |
Enforcement actions
Massachusetts regulators took 1 formal enforcement action against Chelmsford Water District in 1995. The most recent was a compliance order (no penalty) in January 1995.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jan 31, 1995 | Massachusetts | Compliance order (no penalty) | 1 violation: Total Coliform |
Where the water comes from
Chelmsford Water District draws water from 17 wells. 1 other public water system has an emergency connection to Chelmsford Water District.
Annual water quality report
Chelmsford Water District 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 Massachusetts.
Certified drinking water labs by state EPA guidance for private wells