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- Hard water comes from chalk which was created millions of years ago by rising sea levels. Chalk comes from the remains of tiny organisms that today provide fossil collecting opportunities. At the end of Chalk times (65 million years ago), sea levels fell and South-East England was uplifted.
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Map Showing the rate of hardness in mg/l as Cacium in England and Wales. Find out why some areas have “hard water” and others don’t, as well as which areas of the UK suffer from hard water, and what can be done about it.
Hard water occurs in areas of the UK where the bedrock is made of sedimentary rocks like limestone, chalk, flint and sandstone, which formed over the last 65-250 million years. The South East of the UK is mainly made up of chalk and limestone regions and as a result, has the hardest water.
What is Water Hardness? The ‘Hardness’ of water is a measure of the amount of calcium carbonate (CaCO 3) in the water. The hardness of tap water depends largely where in the UK you live. Very generally, the South East, East Midlands and Anglian areas have hard water (200mg/L + CaCO 3 / 12°dH).
Hard water comes from chalk which was created millions of years ago by rising sea levels. Chalk comes from the remains of tiny organisms that today provide fossil collecting opportunities. At the end of Chalk times (65 million years ago), sea levels fell and South-East England was uplifted.
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Jul 31, 2013 · For general purposes, most hard water that is utilized or shows up in homes comes from the water moving through soil and rock, dissolving small bits of minerals and carrying them along in the flow. This flow moves into the pipelines and eventually into the home water lines.
The water in your tap could have come from underground water nearby, or a reservoir further away. So even if you live in a ‘hard water area’, your water might be softer than you expect. One example is Birmingham, where water comes from reservoirs in Wales! Chalk, limestone and fossils.
