UK Water Quality Report • 2026 Data

Water Hardness in LL16

Water supply analysis across 4 postcode sectors in LL16 (Dŵr Cymru Welsh Water).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode LL16

Analyzing water quality disclosures across all 4 postcode sectors in outcode LL16 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 LL16. The lowest mineral concentration is recorded in sector LL16 3 at 45 PPM, whereas sector LL16 9 experiences higher mineral levels reaching 45 PPM.

Since LL16 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 LL16

Lowest mineral concentration

Softest
Sector LL16 3217 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in LL16

Highest mineral concentration

Highest Hardness
Sector LL16 94 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in LL16

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