|
|
eWISA
Home |
CROCODILE:
MAIN INDEX |
ALPHABETICAL
LIST OF RIVERS |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
Map
of the CROCODILE River |
|
E-mail
us |
|
|
|
|
|
|
|
|
|
|
|
|
HYDROLOGY
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
The naturalised mean annual runoff is 1 200 million cubic metres per
year, with an estimated maximum yield (that is, the maximum amount
storable in dams) of 859 million cubic metres per year. The Kwena Dam
already commands 10% of the total catchment runoff, and the proposed
Mountain View Dam will regulate a large portion of the Kaap River
runoff.
|
|
|
"The natural mean annual runoff
(MAR) of the Crocodile (West) Marico water management area is 855
million m3/annum. Approximately 75 % of the total surface runoff from
the Water Management Area flows down the Crocodile River, while the
Marico catchment contributes 20 % and the Upper Molopo catchment 5
%." (www.csir.co.za/rhp/state_of_rivers/crocwestmarico_05/crocwestmarico_05_A4.pdf)
|
|
|
"More than half of the total water
use in the water management area
comprises urban, industrial and mining use,
approximately a third is used by irrigation and
the remainder of the water requirements are
for rural water supplies and power generation.
These water requirements are far more
than what can be provided by the current
water resources. In order to meet the current
demand, much of the water in the water
management area is being imported mainly from the Vaal River
system for domestic and industrial use purposes.
Rand Water, which is the largest water
board in South Africa, together with Magalies
Water and Botshelo Water (the North West
Water Supply Authority), are the three water
boards that supply water in this water management area." (www.csir.co.za/rhp/state_of_rivers/crocwestmarico_05/crocwestmarico_05_A4.pdf)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
GEOHYDROLOGY
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
References |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Useful
links |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|