UK Water Quality Report • 2026 Data

Water Hardness in CA2

Water supply analysis across 4 postcode sectors in CA2 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode CA2

Looking for water hardness metrics in CA2? Water supplied by United Utilities in this outcode registers a baseline average of 45 PPM across 4 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in CA2. The lowest mineral concentration is recorded in sector CA2 4 at 45 PPM, whereas sector CA2 7 experiences higher mineral levels reaching 45 PPM.

Since CA2 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 CA2

Lowest mineral concentration

Softest
Sector CA2 4242 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in CA2

Highest mineral concentration

Highest Hardness
Sector CA2 7251 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in CA2

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