UK Water Quality Report • 2026 Data

Water Hardness in SR6

Water supply analysis across 4 postcode sectors in SR6 (Northumbrian Water).

Outcode Avg Hardness130 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode SR6

Analyzing water quality disclosures across all 4 postcode sectors in outcode SR6 reveals an average water hardness of 130 PPM (Moderately Hard Water). Public water supply across this area is managed by Northumbrian Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in SR6. The lowest mineral concentration is recorded in sector SR6 0 at 130 PPM, whereas sector SR6 9 experiences higher mineral levels reaching 130 PPM.

Due to the moderately hard water (130 PPM) in SR6, 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 H01) 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 SR6

Lowest mineral concentration

Softest
Sector SR6 0138 Postcodes • Moderately Soft
130 PPM9.1 °Clark

Hardest Sector in SR6

Highest mineral concentration

Highest Hardness
Sector SR6 9204 Postcodes • Moderately Soft
130 PPM9.1 °Clark

All Postcode Sectors in SR6

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