Water Hardness in Colnbrook
Colnbrook has hard water at 283 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.
283
mg/l CaCO₃
HardUK average: 197.72 mg/l
283
0 (Soft)200 (Hard)400+ (Very Hard)
What Does Hard Water Mean?
With a hardness of 283 mg/l, Colnbrook 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
- West Drayton (AF085)
- Source Type
- Groundwater
- Treatment Works
- West Drayton Treatment Works
Full Water Quality Report for Colnbrook
See all 8 water quality parameters including pH, chlorine, lead, nitrate, fluoride and more.
Frequently Asked Questions
Is water hard in Colnbrook?▾
Yes, Colnbrook has hard water at 283 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 Colnbrook?▾
The water hardness in Colnbrook is 283 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 Colnbrook?▾
Water in Colnbrook is supplied by Affinity Water, which covers the South East England region. The water is sourced from underground aquifers (boreholes) and treated at West Drayton Treatment Works before distribution.