UK Water Quality Report • 2026 Data

Water Hardness in B12

Water supply analysis across 3 postcode sectors in B12 (Severn Trent Water).

Outcode Avg Hardness160 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode B12

Analyzing water quality disclosures across all 3 postcode sectors in outcode B12 reveals an average water hardness of 160 PPM (Moderately Hard Water). Public water supply across this area is managed by Severn Trent Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in B12. The lowest mineral concentration is recorded in sector B12 0 at 160 PPM, whereas sector B12 9 experiences higher mineral levels reaching 160 PPM.

Due to the moderately hard water (160 PPM) in B12, 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 H02) 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 B12

Lowest mineral concentration

Softest
Sector B12 0159 Postcodes • Moderately Hard
160 PPM11.2 °Clark

Hardest Sector in B12

Highest mineral concentration

Highest Hardness
Sector B12 9154 Postcodes • Moderately Hard
160 PPM11.2 °Clark

All Postcode Sectors in B12

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