UK Water Quality Report • 2026 Data

Water Hardness in SG8

Water supply analysis across 7 postcode sectors in SG8 (Cambridge Water).

Outcode Avg Hardness304.3 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode SG8

Analyzing water quality disclosures across all 7 postcode sectors in outcode SG8 reveals an average water hardness of 304.3 PPM (Very Hard Water). Public water supply across this area is managed by Cambridge Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in SG8. The lowest mineral concentration is recorded in sector SG8 1 at 290 PPM, whereas sector SG8 7 experiences higher mineral levels reaching 315 PPM.

Due to the very hard water (304.3 PPM) in SG8, 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 SG8

Lowest mineral concentration

Softest
Sector SG8 115 Postcodes • Hard
290 PPM20.3 °Clark

Hardest Sector in SG8

Highest mineral concentration

Highest Hardness
Sector SG8 7216 Postcodes • Very Hard
315 PPM22 °Clark

All Postcode Sectors in SG8

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