UK Water Quality Report • 2026 Data

Water Hardness in CH66

Water supply analysis across 10 postcode sectors in CH66 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode CH66

For residents and businesses in outcode CH66, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that CH66 averages 45 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in CH66. The lowest mineral concentration is recorded in sector CH66 0 at 45 PPM, whereas sector CH66 9 experiences higher mineral levels reaching 45 PPM.

Since CH66 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 CH66

Lowest mineral concentration

Softest
Sector CH66 06 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in CH66

Highest mineral concentration

Highest Hardness
Sector CH66 94 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in CH66

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