CAMBRIDGE WATER DEPARTMENT
Massachusetts — Community Water System — PWSID: MA3049000
System Information
| PWSID | MA3049000 |
| System Name | CAMBRIDGE WATER DEPARTMENT |
| System Type | Community Water System |
| Water Source | Surface 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 | CAMBRIDGE |
| ZIP Code | 02138 |
| Address | 250 FRESH POND PKWY |
| Organization | CAMBRIDGE WATER DEPARTMENT |
| Phone | 6173494770 |
Population & Service
| Population Served | 118,214 |
| Service Connections | 15,063 |
Drinking Water Violations (70)
This water system has 70 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.04 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.0002 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.0005 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.0002 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.2 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.007 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.7 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.001 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.05 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.2 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.5 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.0002 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.002 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.07 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.00005 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.006 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.1 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.0002 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | — | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.003 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.004 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.003 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.02 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.002 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.04 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.4 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.05 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.00000003 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.0004 mg/L | — | Archived | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | No | — | 0.001 mg/L | — | Archived | Jun 30, 2019 | — | |
| Jul 1, 2017 | — | Other | No | No | — | — | — | Resolved | Jul 13, 2018 | — | |
| Jul 1, 2017 | — | Other | No | No | — | — | — | Resolved | Jul 13, 2018 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.04 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.04 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.07 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.02 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.0005 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | — | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.2 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.006 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | — | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.003 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.7 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.4 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.2 mg/L | — | Archived | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.004 mg/L | — | Archived | Dec 31, 1997 | — |
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.