UK Water Quality Report • 2026 Data

Water Hardness in LL38

Water supply analysis across 1 postcode sectors in LL38 (Hafren Dyfrdwy).

Outcode Avg Hardness140 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode LL38

For residents and businesses in outcode LL38, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that LL38 averages 140 PPM in mineral content, falling into the Moderately Hard Water classification.

Water chemistry can fluctuate across supply zones in LL38. The lowest mineral concentration is recorded in sector LL38 2 at 140 PPM, whereas sector LL38 2 experiences higher mineral levels reaching 140 PPM.

Due to the moderately hard water (140 PPM) in LL38, 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 LL38

Lowest mineral concentration

Softest
Sector LL38 247 Postcodes • Moderately Hard
140 PPM9.8 °Clark

Hardest Sector in LL38

Highest mineral concentration

Highest Hardness
Sector LL38 247 Postcodes • Moderately Hard
140 PPM9.8 °Clark

All Postcode Sectors in LL38

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