CAMBRIDGE, MA · Middlesex County
CAMBRIDGE WATER DEPARTMENT Water System
Consumer Confidence Report status
CAMBRIDGE WATER DEPARTMENT must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for CAMBRIDGE WATER DEPARTMENT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Massachusetts’s official records. Always confirm current status with Massachusetts before making decisions based on this information.
System facts
- System ID (PWSID)
- MA3049000
- System type
- Community Water System
- Population served
- 118,214
- Service connections
- 15,001
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
CAMBRIDGE WATER DEPARTMENT is among the 6 largest community water systems in Massachusetts, serving 118,214 people from surface water.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is CAMBRIDGE WATER DEPARTMENT required to publish a Consumer Confidence Report?
- Yes. CAMBRIDGE WATER DEPARTMENT is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is CAMBRIDGE WATER DEPARTMENT’s next Consumer Confidence Report due?
- CAMBRIDGE WATER DEPARTMENT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CAMBRIDGE WATER DEPARTMENT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CAMBRIDGE WATER DEPARTMENT.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
CAMBRIDGE WATER DEPARTMENT
6173494770
CAMBRIDGE, MA 02138