SOMERVILLE WATER DEPT. (MWRA)
Massachusetts - Community Water System - PWSID: MA3274000
System Information
| PWSID | MA3274000 |
| System Name | SOMERVILLE WATER DEPT. (MWRA) |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| 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 | SOMERVILLE |
| ZIP Code | 02145 |
| Address | 17 FRANEY ROAD |
| Organization | SOMERVILLE WATER DEPT. (MWRA) |
| Phone | 6176256600 |
Population & Service
| Population Served | 81,045 |
| Service Connections | 15,109 |
Drinking Water Violations (33)
This water system has 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2020 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Nov 1, 2019 | - | TT | Yes | No | - | TT | - | Addressed | - | - | |
| Nov 1, 2010 | Nov 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2010 | - | |
| Nov 1, 2010 | Nov 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2010 | - | |
| Oct 1, 2009 | Oct 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2009 | - | |
| Oct 1, 2009 | Oct 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2009 | - | |
| Jan 1, 2008 | - | TT | Yes | No | - | TT | - | Resolved | Feb 12, 2009 | - | |
| Jan 1, 2008 | - | TT | Yes | No | - | TT | - | Resolved | Feb 12, 2009 | - | |
| Sep 1, 2000 | Sep 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Archived | Sep 30, 2000 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2000 | - | |
| Jan 1, 2000 | - | TT | Yes | No | - | TT | - | Resolved | Mar 27, 2001 | - | |
| Jan 1, 2000 | - | TT | Yes | No | - | TT | - | Resolved | Mar 27, 2001 | - | |
| Jan 1, 1998 | - | TT | Yes | No | - | TT | - | Resolved | Mar 19, 1999 | - | |
| Jan 1, 1998 | - | TT | Yes | No | - | TT | - | Resolved | Mar 19, 1999 | - | |
| Apr 1, 1995 | Jun 30, 1995 | MR | No | Yes | - | 7 MFL | - | Archived | Jun 30, 1995 | - | |
| Jan 1, 1994 | - | TT | Yes | No | - | TT | - | Resolved | Mar 21, 1995 | - | |
| Jan 1, 1994 | - | TT | Yes | No | - | TT | - | Resolved | Mar 21, 1995 | - | |
| Jan 1, 1993 | - | TT | Yes | No | - | TT | - | Resolved | Mar 21, 1995 | - | |
| Jan 1, 1993 | - | TT | Yes | No | - | TT | - | Resolved | Mar 21, 1995 | - | |
| Jan 1, 1992 | May 5, 2000 | TT | Yes | No | - | - | - | Archived | May 5, 2000 | - | |
| Jan 1, 1992 | - | TT | Yes | No | - | TT | - | Resolved | Mar 21, 1995 | - | |
| Jan 1, 1992 | - | TT | Yes | No | - | TT | - | Resolved | Mar 21, 1995 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | 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.