Demand for Water
1- History of Water
2- The Water Cycle & Sherwood Sandstone
3- The Demand for Water
4- Water Supply in Developing Countries
The Water Cycle & Sherwood Sandstone
Papplewick is situated over Sherwood sandstone, which acts like a giant sponge, soaking up, storing and naturally filtering impurities from the water. This sedimentary rock is over 200 million years old and extends over a vast area.
The water cycle
Twenty percent of this rock is made up of holes into which rainwater trickles and is stored. When water is removed, for example from a well sunk into the stone, then more water percolates down to replace it. As the water trickles through the stone, most of its impurities are removed.