Anglian Water supplies Norwich from chalk aquifers beneath Norfolk, producing moderately hard water.
According to TapWater.uk's analysis, Norwich scores 9.1/10 for drinking water quality in 2026. Water is supplied by Anglian Water and has been tested for 18 contaminants across 10 postcode districts.
Average score
9.1/10
UK avg: 9.0/10
Areas tested
10
Issues flagged
0
PFAS detected
None
Yes, Norwich tap water is safe to drink. Based on 10 areas tested, Norwich has an average water quality score of 9.1/10 (level with the UK average of 9.0/10). No contaminants were found above recommended levels. Water is supplied by Anglian Water. Anglian Water supplies Norwich from chalk aquifers beneath Norfolk, producing moderately hard water.
All postcode districts in Norwich, ranked by water quality score.
Learn more about the water quality issues relevant to this area.
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Yes, Norwich tap water is generally safe to drink. Across 10 areas tested, the average water quality score is 9.1/10. Anglian Water supplies Norwich from chalk aquifers beneath Norfolk, producing moderately hard water.
Yes, you can drink tap water in Norwich. It is regulated to UK drinking water standards, and across 10 tested areas the average water quality score is 9.1/10. Enter your postcode for the readings in your exact area.
No contaminants were flagged above recommended levels across Norwich. All tested areas passed on the parameters measured.
Water in Norwich has an average hardness of 318 mg/L CaCO₃, which is classified as very hard. Hard water causes limescale buildup in kettles and appliances. A water softener or filter may help.
The areas with the best water quality in Norwich are NR8 (9.4/10), NR7 (9.3/10), NR1 (9.2/10).
Water in Norwich is supplied by Anglian Water. Anglian Water supplies Norwich from chalk aquifers beneath Norfolk, producing moderately hard water.
No PFAS (forever chemicals) have been detected in any of the 10 areas tested in Norwich.
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