UK Water Quality Report • 2026 Data

Water Hardness in LL28

Water supply analysis across 2 postcode sectors in LL28 (Dŵr Cymru Welsh Water).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode LL28

Analyzing water quality disclosures across all 2 postcode sectors in outcode LL28 reveals an average water hardness of 45 PPM (Soft Water). Public water supply across this area is managed by Dŵr Cymru Welsh Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in LL28. The lowest mineral concentration is recorded in sector LL28 4 at 45 PPM, whereas sector LL28 5 experiences higher mineral levels reaching 45 PPM.

Since LL28 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 LL28

Lowest mineral concentration

Softest
Sector LL28 4229 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in LL28

Highest mineral concentration

Highest Hardness
Sector LL28 5219 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in LL28

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