UK Water Quality Report • 2026 Data

Water Hardness in IP98

Water supply analysis across 2 postcode sectors in IP98 (Anglian Water).

Outcode Avg Hardness310 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode IP98

Looking for water hardness metrics in IP98? Water supplied by Anglian Water in this outcode registers a baseline average of 310 PPM across 2 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in IP98. The lowest mineral concentration is recorded in sector IP98 1 at 310 PPM, whereas sector IP98 9 experiences higher mineral levels reaching 310 PPM.

Due to the very hard water (310 PPM) in IP98, 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 IP98

Lowest mineral concentration

Softest
Sector IP98 16 Postcodes • Very Hard
310 PPM21.7 °Clark

Hardest Sector in IP98

Highest mineral concentration

Highest Hardness
Sector IP98 91 Postcodes • Very Hard
310 PPM21.7 °Clark

All Postcode Sectors in IP98

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