South West Water supplies Plymouth from Burrator Reservoir on Dartmoor, a source used since Victorian times.
According to TapWater.uk's analysis, Plymouth scores 9.6/10 for drinking water quality in 2026. Water is supplied by South West Water and has been tested for 16 contaminants across 4 postcode districts.
Average score
9.6/10
UK avg: 9.1/10
Areas tested
4
Issues flagged
0
PFAS detected
None
Yes, Plymouth tap water is safe to drink. Based on 4 areas tested, Plymouth has an average water quality score of 9.6/10 (above the UK average of 9.1/10). No contaminants were found above recommended levels. Water is supplied by South West Water. South West Water supplies Plymouth from Burrator Reservoir on Dartmoor, a source used since Victorian times.
All postcode districts in Plymouth, ranked by water quality score.
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