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Water Hardness in Hillingdon Heath

Hillingdon Heath has hard water at 265 mg/l CaCO₃. This is above the UK national average of 197.72 mg/l. You may notice limescale buildup on taps, in kettles, and around showerheads.

265

mg/l CaCO₃

HardUK average: 197.72 mg/l
265
0 (Soft)200 (Hard)400+ (Very Hard)

What Does Hard Water Mean?

With a hardness of 265 mg/l, Hillingdon Heath has hard water. This level of hardness is common in areas supplied from chalk and limestone aquifers in the South East of England.

You will likely notice white limescale deposits on taps, showerheads, and inside your kettle. Over time, limescale can reduce the efficiency of boilers and heating systems, increasing energy costs. A water softener can help prevent these issues.

Water Supplier

Water Company
Affinity Water
Supply Zone
Hayes (AF090)
Source Type
Groundwater
Treatment Works
Hayes Treatment Works

Full Water Quality Report for Hillingdon Heath

See all 8 water quality parameters including pH, chlorine, lead, nitrate, fluoride and more.

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Frequently Asked Questions

Is water hard in Hillingdon Heath?▾
Yes, Hillingdon Heath has hard water at 265 mg/l CaCO₃, classified as "Hard". You will likely notice limescale buildup on taps, in kettles, and around showerheads. A water softener or regular descaling can help manage this.
What is the hardness of water in Hillingdon Heath?▾
The water hardness in Hillingdon Heath is 265 mg/l CaCO₃ (milligrams per litre of calcium carbonate). This is classified as "Hard" on the standard UK scale and is above the national average of 197.72 mg/l. Water is supplied by Affinity Water from underground aquifer sources.
Who supplies water to Hillingdon Heath?▾
Water in Hillingdon Heath is supplied by Affinity Water, which covers the South East England region. The water is sourced from underground aquifers (boreholes) and treated at Hayes Treatment Works before distribution.
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