UK Water Quality Report • 2026 Data

Water Hardness in RM2

Water supply analysis across 2 postcode sectors in RM2 (Essex and Suffolk Water).

Outcode Avg Hardness320 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode RM2

Looking for water hardness metrics in RM2? Water supplied by Essex and Suffolk Water in this outcode registers a baseline average of 320 PPM across 2 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in RM2. The lowest mineral concentration is recorded in sector RM2 5 at 320 PPM, whereas sector RM2 6 experiences higher mineral levels reaching 320 PPM.

Due to the very hard water (320 PPM) in RM2, 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 RM2

Lowest mineral concentration

Softest
Sector RM2 5140 Postcodes • Very Hard
320 PPM22.4 °Clark

Hardest Sector in RM2

Highest mineral concentration

Highest Hardness
Sector RM2 6128 Postcodes • Very Hard
320 PPM22.4 °Clark

All Postcode Sectors in RM2

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