England
Severn Trent supplies Gloucester from the River Severn, with treatment at Mythe and Tewkesbury works.
According to TapWater.uk's analysis, Gloucester scores 9.0/10 for drinking water quality in 2026. Water is supplied by Severn Trent and has been tested for 19 contaminants across 5 postcode districts.
Average score
9.0/10
UK avg: 9.0/10
Areas tested
5
Issues flagged
0
PFAS detected
None
Yes, Gloucester tap water is safe to drink. Based on 5 areas tested, Gloucester has an average water quality score of 9.0/10 (level with the UK average of 9.0/10). No contaminants were found above recommended levels. Water is supplied by Severn Trent. Severn Trent supplies Gloucester from the River Severn, with treatment at Mythe and Tewkesbury works.
All postcode districts in Gloucester, ranked by water quality score.
Learn more about the water quality issues relevant to this area.
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Yes, Gloucester tap water is generally safe to drink. Across 5 areas tested, the average water quality score is 9.0/10. Severn Trent supplies Gloucester from the River Severn, with treatment at Mythe and Tewkesbury works.
Yes, you can drink tap water in Gloucester. It is regulated to UK drinking water standards, and across 5 tested areas the average water quality score is 9.0/10. Enter your postcode for the readings in your exact area.
No contaminants were flagged above recommended levels across Gloucester. All tested areas passed on the parameters measured.
Water in Gloucester has an average hardness of 274 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 Gloucester are GL20 (9.2/10), GL2 (9.0/10), GL4 (9.0/10).
Water in Gloucester is supplied by Severn Trent. Severn Trent supplies Gloucester from the River Severn, with treatment at Mythe and Tewkesbury works.
No PFAS (forever chemicals) have been detected in any of the 5 areas tested in Gloucester.
Free live water quality widget for GL20: 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 Gloucester.