UK Water Quality Report • 2026 Data

Water Hardness in PE9

Water supply analysis across 5 postcode sectors in PE9 (Anglian Water).

Outcode Avg Hardness310 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode PE9

Looking for water hardness metrics in PE9? Water supplied by Anglian Water in this outcode registers a baseline average of 310 PPM across 5 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in PE9. The lowest mineral concentration is recorded in sector PE9 1 at 310 PPM, whereas sector PE9 9 experiences higher mineral levels reaching 310 PPM.

Due to the very hard water (310 PPM) in PE9, 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 PE9

Lowest mineral concentration

Softest
Sector PE9 1229 Postcodes • Very Hard
310 PPM21.7 °Clark

Hardest Sector in PE9

Highest mineral concentration

Highest Hardness
Sector PE9 93 Postcodes • Very Hard
310 PPM21.7 °Clark

All Postcode Sectors in PE9

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