TapScore

CAMBRIDGE WATER DEPARTMENT Water Quality Report

Population

118,214

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

Top 43%

of 49,184 US systems

5-Year Record

✅ Clean

no violations

A

Safe

Safety Grade

0 violations in the past 5 years

System Details

PWSID
MA3049000
Population Served
118,214
Water Source
Surface Water
Owner
Local Government
State
Massachusetts
EPA Region
1

Contaminants of Concern

ContaminantStatusViolations
Contaminant 2067⚠ Monitoring/Reporting2
Contaminant 2065⚠ Monitoring/Reporting2
Contaminant 2326⚠ Monitoring/Reporting2
Contaminant 2020⚠ Monitoring/Reporting2
Contaminant 2110⚠ Monitoring/Reporting2
Contaminant 2015⚠ Monitoring/Reporting2
Contaminant 2010⚠ Monitoring/Reporting2
Contaminant 2383⚠ Monitoring/Reporting2
Contaminant 2931⚠ Monitoring/Reporting2
Contaminant 2306⚠ Monitoring/Reporting2
Contaminant 7000⚠ Monitoring/Reporting2
Contaminant 2031⚠ Monitoring/Reporting2
Contaminant 2035⚠ Monitoring/Reporting2
Contaminant 2039⚠ Monitoring/Reporting2
Contaminant 2041⚠ Monitoring/Reporting2
Contaminant 2032⚠ Monitoring/Reporting2
Contaminant 2033⚠ Monitoring/Reporting2
Contaminant 2034⚠ Monitoring/Reporting2
Contaminant 2274⚠ Monitoring/Reporting2
Contaminant 2042⚠ Monitoring/Reporting2
Contaminant 2036⚠ Monitoring/Reporting2
Benzene⚠ Monitoring/Reporting2
Contaminant 2040⚠ Monitoring/Reporting2
Contaminant 2037⚠ Monitoring/Reporting2
Contaminant 2063⚠ Monitoring/Reporting2
Contaminant 2388⚠ Monitoring/Reporting2
Contaminant 2390⚠ Monitoring/Reporting2
Contaminant 2392⚠ Monitoring/Reporting2
Contaminant 2394⚠ Monitoring/Reporting2
Contaminant 2396⚠ Monitoring/Reporting2
Contaminant 2398⚠ Monitoring/Reporting2
Contaminant 2399⚠ Monitoring/Reporting2
Atrazine⚠ Monitoring/Reporting2
Contaminant 2400⚠ Monitoring/Reporting2
Contaminant 2046⚠ Monitoring/Reporting2
Contaminant 2959⚠ Monitoring/Reporting2
Contaminant 2105⚠ Monitoring/Reporting2
Contaminant 2005⚠ Monitoring/Reporting2
Contaminant 2946⚠ Monitoring/Reporting2

Violation History

2019
76
2017
2

Total violations on record: 78

Service Area

Cities Served

CAMBRIDGE

ZIP Codes Served

02138

Recommended Water Filters

Based on contaminants detected in this water system:

Activated Carbon Filter

Effective for chlorine, THMs, pesticides, and taste/odor improvement

Removes: Atrazine, Benzene

$20–$100

How does this compare?

This systemNational average
Grade A
Avg: B-C
78violations total

279% of national average

National avg: ~28 per system

🏙️ This is a large system — serving 18× more people than the national average.