UK Water Quality Report • 2026 Data

Water Hardness in NP25

Water supply analysis across 4 postcode sectors in NP25 (Dŵr Cymru Welsh Water).

Outcode Avg Hardness73.8 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode NP25

Analyzing water quality disclosures across all 4 postcode sectors in outcode NP25 reveals an average water hardness of 73.8 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 NP25. The lowest mineral concentration is recorded in sector NP25 3 at 45 PPM, whereas sector NP25 4 experiences higher mineral levels reaching 160 PPM.

Since NP25 enjoys soft water (73.8 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 NP25

Lowest mineral concentration

Softest
Sector NP25 3197 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in NP25

Highest mineral concentration

Highest Hardness
Sector NP25 4175 Postcodes • Moderately Hard
160 PPM11.2 °Clark

All Postcode Sectors in NP25

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