Water Hardness in South West Holderness

South West Holderness has hard water at 294.67 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.

294.67

mg/l CaCO₃

HardUK average: 197.72 mg/l
294.67
0 (Soft)200 (Hard)400+ (Very Hard)

What Does Hard Water Mean?

With a hardness of 294.67 mg/l, South West Holderness 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
Yorkshire Water
Supply Zone
South West Holderness (East Riding of Yorkshire)
Source Type
Groundwater
Treatment Works
East Riding of Yorkshire Treatment Works

Full Water Quality Report for South West Holderness

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Frequently Asked Questions

Is water hard in South West Holderness?
Yes, South West Holderness has hard water at 294.67 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 South West Holderness?
The water hardness in South West Holderness is 294.67 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 Yorkshire Water from underground aquifer sources.
Who supplies water to South West Holderness?
Water in South West Holderness is supplied by Yorkshire Water, which covers the Yorkshire and the Humber region. The water is sourced from underground aquifers (boreholes) and treated at East Riding of Yorkshire Treatment Works before distribution.
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