UK Water Quality Report • 2026 Data

Water Hardness in N10

Water supply analysis across 4 postcode sectors in N10 (Affinity Water).

Outcode Avg Hardness278.8 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode N10

For residents and businesses in outcode N10, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that N10 averages 278.8 PPM in mineral content, falling into the Hard Water classification.

Water chemistry can fluctuate across supply zones in N10. The lowest mineral concentration is recorded in sector N10 2 at 275 PPM, whereas sector N10 1 experiences higher mineral levels reaching 290 PPM.

Due to the hard water (278.8 PPM) in N10, limescale build-up can occur on heating elements, shower heads, and boilers. Setting your dishwasher water softener to the correct level (e.g. Bosch setting H04) is strongly recommended to prevent cloudy glassware and internal scale accumulation. Review the individual postcode sectors below to get precise dishwasher salt settings and limescale recommendations.

Softest Sector in N10

Lowest mineral concentration

Softest
Sector N10 2154 Postcodes • Hard
275 PPM19.3 °Clark

Hardest Sector in N10

Highest mineral concentration

Highest Hardness
Sector N10 1155 Postcodes • Hard
290 PPM20.3 °Clark

All Postcode Sectors in N10

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