UK Water Quality Report • 2026 Data

Water Hardness in OL13

Water supply analysis across 4 postcode sectors in OL13 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode OL13

Analyzing water quality disclosures across all 4 postcode sectors in outcode OL13 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 OL13. The lowest mineral concentration is recorded in sector OL13 0 at 45 PPM, whereas sector OL13 9 experiences higher mineral levels reaching 45 PPM.

Since OL13 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 OL13

Lowest mineral concentration

Softest
Sector OL13 0188 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in OL13

Highest mineral concentration

Highest Hardness
Sector OL13 9245 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in OL13

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