UK Water Quality Report • 2026 Data

Water Hardness in IG6

Water supply analysis across 3 postcode sectors in IG6 (Essex and Suffolk Water).

Outcode Avg Hardness305 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode IG6

Analyzing water quality disclosures across all 3 postcode sectors in outcode IG6 reveals an average water hardness of 305 PPM (Very Hard Water). Public water supply across this area is managed by Essex and Suffolk Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in IG6. The lowest mineral concentration is recorded in sector IG6 2 at 275 PPM, whereas sector IG6 3 experiences higher mineral levels reaching 320 PPM.

Due to the very hard water (305 PPM) in IG6, 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 IG6

Lowest mineral concentration

Softest
Sector IG6 2250 Postcodes • Hard
275 PPM19.3 °Clark

Hardest Sector in IG6

Highest mineral concentration

Highest Hardness
Sector IG6 3138 Postcodes • Very Hard
320 PPM22.4 °Clark

All Postcode Sectors in IG6

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