UK Water Quality Report • 2026 Data

Water Hardness in SS99

Water supply analysis across 5 postcode sectors in SS99 (Essex and Suffolk Water).

Outcode Avg Hardness320 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode SS99

For residents and businesses in outcode SS99, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that SS99 averages 320 PPM in mineral content, falling into the Very Hard Water classification.

Water chemistry can fluctuate across supply zones in SS99. The lowest mineral concentration is recorded in sector SS99 1 at 320 PPM, whereas sector SS99 9 experiences higher mineral levels reaching 320 PPM.

Due to the very hard water (320 PPM) in SS99, 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 SS99

Lowest mineral concentration

Softest
Sector SS99 19 Postcodes • Very Hard
320 PPM22.4 °Clark

Hardest Sector in SS99

Highest mineral concentration

Highest Hardness
Sector SS99 939 Postcodes • Very Hard
320 PPM22.4 °Clark

All Postcode Sectors in SS99

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