UK Water Quality Report • 2026 Data

Water Hardness in CA28

Water supply analysis across 5 postcode sectors in CA28 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode CA28

For residents and businesses in outcode CA28, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that CA28 averages 45 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in CA28. The lowest mineral concentration is recorded in sector CA28 0 at 45 PPM, whereas sector CA28 9 experiences higher mineral levels reaching 45 PPM.

Since CA28 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 CA28

Lowest mineral concentration

Softest
Sector CA28 039 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in CA28

Highest mineral concentration

Highest Hardness
Sector CA28 9235 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in CA28

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