UK Water Quality Report • 2026 Data

Water Hardness in WS11

Water supply analysis across 8 postcode sectors in WS11 (South Staffordshire Water).

Outcode Avg Hardness300 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode WS11

For residents and businesses in outcode WS11, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that WS11 averages 300 PPM in mineral content, falling into the Very Hard Water classification.

Water chemistry can fluctuate across supply zones in WS11. The lowest mineral concentration is recorded in sector WS11 0 at 300 PPM, whereas sector WS11 9 experiences higher mineral levels reaching 300 PPM.

Due to the very hard water (300 PPM) in WS11, 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 WS11

Lowest mineral concentration

Softest
Sector WS11 0145 Postcodes • Very Hard
300 PPM21 °Clark

Hardest Sector in WS11

Highest mineral concentration

Highest Hardness
Sector WS11 9172 Postcodes • Very Hard
300 PPM21 °Clark

All Postcode Sectors in WS11

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