UK Water Quality Report • 2026 Data

Water Hardness in DE12

Water supply analysis across 3 postcode sectors in DE12 (South Staffordshire Water).

Outcode Avg Hardness253.3 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode DE12

Looking for water hardness metrics in DE12? Water supplied by South Staffordshire Water in this outcode registers a baseline average of 253.3 PPM across 3 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in DE12. The lowest mineral concentration is recorded in sector DE12 7 at 160 PPM, whereas sector DE12 8 experiences higher mineral levels reaching 300 PPM.

Due to the hard water (253.3 PPM) in DE12, 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 H07 (Max Salt)) 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 DE12

Lowest mineral concentration

Softest
Sector DE12 7240 Postcodes • Moderately Hard
160 PPM11.2 °Clark

Hardest Sector in DE12

Highest mineral concentration

Highest Hardness
Sector DE12 8123 Postcodes • Very Hard
300 PPM21 °Clark

All Postcode Sectors in DE12

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