In places where fresh water is not sufficiently abundant, survival requires man-made solutions. The porous sedimentary rocks that constitute the subsoil, allows rain water run-off to seep through rocks to reach the water-table, hundreds of metres underground. The water accumulated in galleries is then pumped into a water supply system for a variety of uses. Valleys and lowlands help this process. Dams are built to keep rain water from escaping to the sea or other water drainage outlets. This helps huge amounts of rain water to be ‘stored’ as outlined. A typical example are Chadwick Lakes. Watch the video for a hands-on visual experience.
