Southern Water supplies Brighton from chalk aquifers beneath the South Downs, producing naturally hard water.
According to TapWater.uk's analysis, Brighton scores 9.2/10 for drinking water quality in 2026. Water is supplied by Southern Water and has been tested for 19 contaminants across 4 postcode districts.
Average score
9.2/10
UK avg: 9.0/10
Areas tested
4
Issues flagged
3
PFAS detected
None
Yes, Brighton tap water is safe to drink. Based on 4 areas tested, Brighton has an average water quality score of 9.2/10 (level with the UK average of 9.0/10). 3 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.
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Yes, Brighton tap water is generally safe to drink. Across 4 areas tested, the average water quality score is 9.2/10. Southern Water supplies Brighton from chalk aquifers beneath the South Downs, producing naturally hard water.
Yes, you can drink tap water in Brighton. It is regulated to UK drinking water standards, and across 4 tested areas the average water quality score is 9.2/10. Enter your postcode for the readings in your exact area.
The most commonly flagged contaminants across Brighton are Nitrate (flagged in 3 areas). No PFAS were detected.
Hardness data is not yet available for Brighton. Enter your postcode for detailed water quality data.
The areas with the best water quality in Brighton are BN1 (9.2/10), BN2 (9.2/10), BN3 (9.2/10).
Water in Brighton is supplied by Southern Water. Southern Water supplies Brighton from chalk aquifers beneath the South Downs, producing naturally hard water.
No PFAS (forever chemicals) have been detected in any of the 4 areas tested in Brighton.
Free live water quality widget for BN1: paste these two lines anywhere on your page. It stays up to date by itself and credits TapWater.uk automatically.
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<script src="https://www.tapwater.uk/widget.js" async></script>Get a detailed water quality report for your exact area in Brighton.