Water supply and sanitation in South Africa - Wikipedia
2021-11-13u2002·u2002Water availability in South Africa varies greatly in space and time. While the West is dry with rainfall only during the summer and as low as 100 mm, the East and Southeast receive rainfall throughout the year with an average of up to 1,000 mm. Total annual surface runoff is estimated at 43 to 48 km 3, depending on the source.. Much of the runoff is lost through flood spillage, so …
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