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Water quality in North West England

Water quality across Manchester, Liverpool, and Lancashire. Supplied by United Utilities.

According to TapWater.uk's analysis, North West England scores 9.6/10 for drinking water quality in 2026, based on data from 57 postcode districts.

9.6

Avg score /10

57

Areas tested

1

Suppliers

0

PFAS detections

Tap water in North West England has an average safety score of 9.6 out of 10 based on testing across 57 postcode districts. Water is supplied by United Utilities. The overall water quality is good. Data is sourced from the Environment Agency and water company testing via the Stream Water Data Portal.

Try your postcode — e.g. SW1A, M1, B1

Cities in North West England

Average water quality score by city.

Water suppliers

All postcode areas in North West England

Every postcode district we monitor in this region.

Data sourced from the Environment Agency Water Quality Archive and water company testing via the Stream Water Data Portal. See our methodology for how scores are calculated.Reviewed by the TapWater.uk research team