tapwater.uk

Affinity Water

Water quality report — South East England

7.7/10

Average score

Good

N12

Lowest scored area

7.5/10

N11

Highest scored area

8.1/10

3

Contaminants flagged

across all areas

Water Quality Across Affinity Water Area

Scores sorted by lowest first — worst quality at the top.

PostcodeAreaScoreStatus
N12Barnet7.5/10Good
NW9Barnet7.5/10Good
N11Barnet8.1/10Good

Postcode Areas Served

All postcode districts within Affinity Water's supply network.

Supplier compliance rates are sourced from the Drinking Water Inspectorate (DWI) annual reports. Postcode scores are calculated from Environment Agency monitoring data. See our methodology for full details.