UK Water Quality Report • 2026 Data

Water Hardness in WN1

Water supply analysis across 4 postcode sectors in WN1 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode WN1

For residents and businesses in outcode WN1, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that WN1 averages 45 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in WN1. The lowest mineral concentration is recorded in sector WN1 1 at 45 PPM, whereas sector WN1 9 experiences higher mineral levels reaching 45 PPM.

Since WN1 enjoys soft water (45 PPM), residents generally do not need dishwasher salt or heavy-duty limescale descalers. Standard detergent dosages are sufficient for laundry and dishwashing. Review the individual postcode sectors below to get precise dishwasher salt settings and limescale recommendations.

Softest Sector in WN1

Lowest mineral concentration

Softest
Sector WN1 1134 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in WN1

Highest mineral concentration

Highest Hardness
Sector WN1 973 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in WN1

Select a postcode sector below to view exact water softener salt settings, limescale protection guides, and appliance recommendations.