UK Water Quality Report • 2026 Data

Water Hardness in LL30

Water supply analysis across 4 postcode sectors in LL30 (Dŵr Cymru Welsh Water).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode LL30

Looking for water hardness metrics in LL30? Water supplied by Dŵr Cymru Welsh Water in this outcode registers a baseline average of 45 PPM across 4 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in LL30. The lowest mineral concentration is recorded in sector LL30 1 at 45 PPM, whereas sector LL30 9 experiences higher mineral levels reaching 45 PPM.

Since LL30 enjoys soft water (45 PPM), residents generally do not need dishwasher salt or heavy-duty limescale descalers. Standard detergent dosages are sufficient for laundry and dishwashing. Review the individual postcode sectors below to get precise dishwasher salt settings and limescale recommendations.

Softest Sector in LL30

Lowest mineral concentration

Softest
Sector LL30 1250 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in LL30

Highest mineral concentration

Highest Hardness
Sector LL30 922 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in LL30

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