B68/100
Cambridge Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 3,000 residents · New York
What's In Cambridge's Tap Water?
2
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.74 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
CAMBRIDGE WATER WORKS
Population Served
3,000
Water Source
Groundwater
System ID
NY5700117
Frequently Asked Questions About Cambridge Water
Is Cambridge tap water safe to drink?
Cambridge, New York tap water receives a grade of B (68/100), which is considered good. Out of 2 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Cambridge's water?
Of the 2 contaminants tested in Cambridge's water supply, the most notable include Copper (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Cambridge have any water quality violations?
Yes, Cambridge has 24 EPA violation(s) on record, with the most recent in 2017. Violation types include MR. None of these are classified as health-based violations.
Do I need a water filter in Cambridge?
Based on EPA data, using a water filter in Cambridge is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Cambridge's tap water come from?
Cambridge's drinking water is sourced from groundwater and supplied by CAMBRIDGE WATER WORKS. The system serves approximately 3,000 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Cambridge's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Cambridge's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Cambridge's water compare to other cities in New York?
Cambridge's water quality score of 68/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our New York state page to see how all cities in the state compare.
What should I do if I'm concerned about Cambridge's water quality?
If you have concerns about Cambridge's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (CAMBRIDGE WATER WORKS) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.