In 2003-2004 Cape Town faces some particularly low average rainfalls, which caused the need for water restrictions. In 2007 they underwent a Berg Water Project in order to decrease the risk of water shortage in Cape Town. The Berg River dam was implemented successfully to augment the water supply of the Western Cape region.
Cape Town currently gets 98.5% of it’s water supply from surface water, while the remaining 1.5% comes from ground water. The following are Cape Town’s ground water resources (however, only two are currently being exploited):
- Albion Springs
- Atlantis Aquifer
- Cape Flats Aquifer
- Newlands Aquifer
There are a large number of dams that are currently generating most of Cape Town’s water supply. The diagram below shows the storage levels of dams across South Africa, blue marking high storage and red marketing very low storage. (click to expand).
Table Mountain is a major resource for rainfall water and is a source for many of the surrounding streams and rivers. These flows are very dependent on the season, as the winter months bring in much higher rainfall.Figure 2: Clouds forming above Table Mountain [Available From: http://tablemountain.net/blog/entry/photo_essay_clouds_on_table_mountain_tablecloth_vanhunks_devil/]