WG
WaterGrade

Water Hardness in Great Dunmow

Great Dunmow has very hard water at 350 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.

350

mg/l CaCO₃

Very HardUK average: 197.72 mg/l
350
0 (Soft)200 (Hard)400+ (Very Hard)

What Does Very Hard Water Mean?

With a hardness of 350 mg/l, Great Dunmow has very 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
Uttlesford Dunmow (AF019)
Source Type
Groundwater
Treatment Works
Uttlesford Dunmow Treatment Works

Full Water Quality Report for Great Dunmow

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 Great Dunmow?▾
Yes, Great Dunmow has hard water at 350 mg/l CaCO₃, classified as "Very 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 Great Dunmow?▾
The water hardness in Great Dunmow is 350 mg/l CaCO₃ (milligrams per litre of calcium carbonate). This is classified as "Very 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 Great Dunmow?▾
Water in Great Dunmow is supplied by Affinity Water, which covers the South East England region. The water is sourced from underground aquifers (boreholes) and treated at Uttlesford Dunmow Treatment Works before distribution.
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