UK Water Quality Report • 2026 Data

Water Hardness in PL15

Water supply analysis across 4 postcode sectors in PL15 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode PL15

Analyzing water quality disclosures across all 4 postcode sectors in outcode PL15 reveals an average water hardness of 40 PPM (Soft Water). Public water supply across this area is managed by South West Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in PL15. The lowest mineral concentration is recorded in sector PL15 0 at 40 PPM, whereas sector PL15 9 experiences higher mineral levels reaching 40 PPM.

Since PL15 enjoys soft water (40 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 PL15

Lowest mineral concentration

Softest
Sector PL15 012 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in PL15

Highest mineral concentration

Highest Hardness
Sector PL15 9266 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in PL15

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