WG
WaterGrade

Water Hardness in Croydon West Lower

Croydon West Lower has hard water at 288 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.

288

mg/l CaCO₃

HardUK average: 197.72 mg/l
288
0 (Soft)200 (Hard)400+ (Very Hard)

What Does Hard Water Mean?

With a hardness of 288 mg/l, Croydon West Lower 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
Thames Water
Supply Zone
Croydon West Lower (SLW41)
Source Type
River
Treatment Works
Croydon West Lower Treatment Works

Full Water Quality Report for Croydon West Lower

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Frequently Asked Questions

Is water hard in Croydon West Lower?▾
Yes, Croydon West Lower has hard water at 288 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 Croydon West Lower?▾
The water hardness in Croydon West Lower is 288 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 Thames Water from river sources.
Who supplies water to Croydon West Lower?▾
Water in Croydon West Lower is supplied by Thames Water, which covers the London and Thames Valley region. The water is sourced from river abstraction and treated at Croydon West Lower Treatment Works before distribution.
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