UK Water Quality Report • 2026 Data

Water Hardness in OL5

Water supply analysis across 2 postcode sectors in OL5 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode OL5

For residents and businesses in outcode OL5, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that OL5 averages 45 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in OL5. The lowest mineral concentration is recorded in sector OL5 0 at 45 PPM, whereas sector OL5 9 experiences higher mineral levels reaching 45 PPM.

Since OL5 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 OL5

Lowest mineral concentration

Softest
Sector OL5 0182 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in OL5

Highest mineral concentration

Highest Hardness
Sector OL5 9188 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in OL5

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