UK Water Quality Report • 2026 Data

Water Hardness in CA15

Water supply analysis across 4 postcode sectors in CA15 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode CA15

Analyzing water quality disclosures across all 4 postcode sectors in outcode CA15 reveals an average water hardness of 45 PPM (Soft Water). Public water supply across this area is managed by United Utilities, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in CA15. The lowest mineral concentration is recorded in sector CA15 6 at 45 PPM, whereas sector CA15 9 experiences higher mineral levels reaching 45 PPM.

Since CA15 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 CA15

Lowest mineral concentration

Softest
Sector CA15 6184 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in CA15

Highest mineral concentration

Highest Hardness
Sector CA15 93 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in CA15

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