WaterWater Hardness in W1S London
Supplied by Severn Trent Water • Greater London, London
Moderately Hard
159
ppm (mg/L CaCO₃)
11.1°
Clark Degrees
8.9°
German Degrees (dH)
15.9°
French Degrees (fH)
Water Hardness in London (W1S)
The water in postcode district W1S is classified as moderately hard with a hardness level of 159 ppm (parts per million) calcium carbonate. This is 46 ppm below the UK national average of 205 ppm.
Your water is supplied by Severn Trent Water, which serves the London region. Severn Trent Water draws water from sources that naturally contain dissolved minerals, primarily calcium and magnesium compounds.
What Does Moderately Hard Water Mean for Your Home?
- ~ Noticeable limescale buildup in kettles and boilers
- ~ Soap may not lather as easily
- ~ Showerhead may need descaling periodically
- ~ Slight film on glassware after washing
How W1S Compares
| Area | Hardness | PPM |
|---|---|---|
| W1S London | 159 ppm | |
| UK National Average | 205 ppm |
Nearby Areas
Frequently Asked Questions
What is the water hardness in W1S London?
The water in W1S London has a hardness level of 159 ppm (parts per million) calcium carbonate, classified as moderately hard. This is 46 ppm below the UK national average of 205 ppm.
Which water company supplies W1S?
W1S London is supplied by Severn Trent Water. Severn Trent Water serves the London region.
Is the water in W1S safe to drink?
Yes. Moderately Hard water at 159 ppm is safe to drink. Water hardness affects taste and can cause limescale, but it is not a health risk. In fact, hard water contains beneficial minerals like calcium and magnesium.
How can I reduce water hardness in W1S?
At 159 ppm, the water in W1S is moderately hard and unlikely to cause significant issues. A jug filter can improve taste, but a water softener is generally not necessary.
What does 159 ppm water hardness mean?
159 ppm means there are 159 parts per million of calcium carbonate dissolved in the water. This is equivalent to 11.1 Clark degrees, 8.9 German degrees, or 15.9 French degrees. Water above 180 ppm is generally considered hard.
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