UK Water Quality Report • 2026 Data

Water Hardness in HD7

Water supply analysis across 4 postcode sectors in HD7 (Yorkshire Water).

Outcode Avg Hardness110 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode HD7

Analyzing water quality disclosures across all 4 postcode sectors in outcode HD7 reveals an average water hardness of 110 PPM (Moderately Hard Water). Public water supply across this area is managed by Yorkshire Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in HD7. The lowest mineral concentration is recorded in sector HD7 4 at 110 PPM, whereas sector HD7 9 experiences higher mineral levels reaching 110 PPM.

Due to the moderately hard water (110 PPM) in HD7, 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 HD7

Lowest mineral concentration

Softest
Sector HD7 4196 Postcodes • Moderately Soft
110 PPM7.7 °Clark

Hardest Sector in HD7

Highest mineral concentration

Highest Hardness
Sector HD7 94 Postcodes • Moderately Soft
110 PPM7.7 °Clark

All Postcode Sectors in HD7

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