UK Water Quality Report • 2026 Data

Water Hardness in SN80

Water supply analysis across 1 postcode sectors in SN80 (Northumbrian Water).

Outcode Avg Hardness130 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode SN80

For residents and businesses in outcode SN80, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that SN80 averages 130 PPM in mineral content, falling into the Moderately Hard Water classification.

Water chemistry can fluctuate across supply zones in SN80. The lowest mineral concentration is recorded in sector SN80 1 at 130 PPM, whereas sector SN80 1 experiences higher mineral levels reaching 130 PPM.

Due to the moderately hard water (130 PPM) in SN80, 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 H01) 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 SN80

Lowest mineral concentration

Softest
Sector SN80 11 Postcodes • Moderately Soft
130 PPM9.1 °Clark

Hardest Sector in SN80

Highest mineral concentration

Highest Hardness
Sector SN80 11 Postcodes • Moderately Soft
130 PPM9.1 °Clark

All Postcode Sectors in SN80

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