Southern Water supplies Brighton from chalk aquifers beneath the South Downs, producing naturally hard water.
According to TapWater.uk's analysis, Brighton scores 9.0/10 for drinking water quality in 2026. Water is supplied by Southern Water and has been tested for 19 contaminants across 5 postcode districts.
Average score
9.0/10
UK avg: 9.1/10
Areas tested
5
Issues flagged
4
PFAS detected
None
Yes, Brighton tap water is safe to drink. Based on 5 areas tested, Brighton has an average water quality score of 9.0/10 (level with the UK average of 9.1/10). 4 contaminants were flagged above recommended levels across all areas. Water is supplied by Southern Water. Southern Water supplies Brighton from chalk aquifers beneath the South Downs, producing naturally hard water.
Contaminants flagged most often across the city.
All postcode districts in Brighton, ranked by water quality score.
Learn more about the water quality issues relevant to this area.
Get a detailed water quality report for your exact area in Brighton.