Cambridge Water (now part of South Staffs Water) draws from chalk aquifers, producing very hard water.
According to TapWater.uk's analysis, Cambridge scores 9.0/10 for drinking water quality in 2026. Water is supplied by Anglian Water and has been tested for 28 contaminants across 9 postcode districts.
Average score
9.0/10
UK avg: 9.0/10
Areas tested
9
Issues flagged
3
PFAS detected
None
Yes, Cambridge tap water is safe to drink. Based on 9 areas tested, Cambridge has an average water quality score of 9.0/10 (level with the UK average of 9.0/10). 3 contaminants were flagged above recommended levels across all areas. Water is supplied by Anglian Water. Cambridge Water (now part of South Staffs Water) draws from chalk aquifers, producing very hard water.
Contaminants flagged most often across the city.
All postcode districts in Cambridge, ranked by water quality score.
Learn more about the water quality issues relevant to this area.
Best Water Filters UK
Every filter type compared on what it actually removes
Is UK Tap Water Safe?
Everything you need to know about tap water safety in the UK
How to Test Your Tap Water
From DIY strips to professional lab analysis
Best Water Filter Jug UK
BRITA vs ZeroWater vs the rest, tested against real data
Yes, Cambridge tap water is generally safe to drink. Across 9 areas tested, the average water quality score is 9.0/10. Cambridge Water (now part of South Staffs Water) draws from chalk aquifers, producing very hard water.
Yes, you can drink tap water in Cambridge. It is regulated to UK drinking water standards, and across 9 tested areas the average water quality score is 9.0/10. Enter your postcode for the readings in your exact area.
The most commonly flagged contaminants across Cambridge are Nitrate (flagged in 2 areas), Iron (flagged in 1 area). No PFAS were detected.
Hardness data is not yet available for Cambridge. Enter your postcode for detailed water quality data.
The areas with the best water quality in Cambridge are CB23 (9.4/10), CB24 (9.3/10), CB5 (9.3/10).
Water in Cambridge is supplied by Anglian Water. Cambridge Water (now part of South Staffs Water) draws from chalk aquifers, producing very hard water.
No PFAS (forever chemicals) have been detected in any of the 9 areas tested in Cambridge.
Free live water quality widget for CB23: paste these two lines anywhere on your page. It stays up to date by itself and credits TapWater.uk automatically.
<div data-tapwater-postcode="CB23"></div>
<script src="https://www.tapwater.uk/widget.js" async></script>Get a detailed water quality report for your exact area in Cambridge.