CHELMSFORD WATER DISTRICT
Massachusetts - Community Water System - PWSID: MA3056000
System Information
| PWSID | MA3056000 |
| System Name | CHELMSFORD WATER DISTRICT |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 26, 1979 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Massachusetts |
| City | CHELMSFORD |
| ZIP Code | 01824 |
| Address | 20 WATERSHED LN |
| Organization | CHELMSFORD WATER DISTRICT |
| Phone | 9782562931 |
Population & Service
| Population Served | 28,750 |
| Service Connections | 8,388 |
Drinking Water Violations (12)
This water system has 12 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Aug 11, 2014 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Aug 11, 2014 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | No | - | 10 mg/L | - | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | No | - | 10 mg/L | - | Resolved | Sep 30, 2013 | - | |
| Dec 1, 1994 | Dec 31, 1994 | MR | No | No | - | 5% of samples | - | Archived | Dec 31, 1994 | - | |
| Jan 1, 1992 | Jan 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Jan 31, 1992 | - | |
| Feb 1, 1991 | Feb 28, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Feb 28, 1991 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.