WG
WaterGrade

Water Hardness in St Andrews Ridge

St Andrews Ridge has hard water at 275 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.

275

mg/l CaCO₃

HardUK average: 197.72 mg/l
275
0 (Soft)200 (Hard)400+ (Very Hard)

What Does Hard Water Mean?

With a hardness of 275 mg/l, St Andrews Ridge 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
Swindon North (S22)
Source Type
Groundwater
Treatment Works
Swindon North Treatment Works

Full Water Quality Report for St Andrews Ridge

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

View →

Frequently Asked Questions

Is water hard in St Andrews Ridge?▾
Yes, St Andrews Ridge has hard water at 275 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 St Andrews Ridge?▾
The water hardness in St Andrews Ridge is 275 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 underground aquifer sources.
Who supplies water to St Andrews Ridge?▾
Water in St Andrews Ridge is supplied by Thames Water, which covers the London and Thames Valley region. The water is sourced from underground aquifers (boreholes) and treated at Swindon North Treatment Works before distribution.
Check another postcode →Browse all hard water areas →