UK Water Quality Report • 2026 Data

Water Hardness in JE3

Water supply analysis across 9 postcode sectors in JE3 (Jersey Water).

Outcode Avg Hardness160 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode JE3

Looking for water hardness metrics in JE3? Water supplied by Jersey Water in this outcode registers a baseline average of 160 PPM across 9 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in JE3. The lowest mineral concentration is recorded in sector JE3 1 at 160 PPM, whereas sector JE3 9 experiences higher mineral levels reaching 160 PPM.

Due to the moderately hard water (160 PPM) in JE3, 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 H02) 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 JE3

Lowest mineral concentration

Softest
Sector JE3 1141 Postcodes • Slightly Hard
160 PPM11.2 °Clark

Hardest Sector in JE3

Highest mineral concentration

Highest Hardness
Sector JE3 9160 Postcodes • Slightly Hard
160 PPM11.2 °Clark

All Postcode Sectors in JE3

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