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2010 November dam levels

The state of the main dams supplying the Cape metropolitan area as compared to the five previous years is reflected in the table below. Because the sizes of the dams vary, the best indicator is the overall percentage stored compared to the total accumulated capacity. This is the statistic shown in the bottom line of the table below.

It is important to bear in mind that the time to save water is when there is water to save, and we should therefore not become complacent about our water saving efforts. Cape Town will never be in the position of having sufficient water to waste, and we must continue to be vigilant.

Cape Town Dam Levels November 2010

Dam Storage capasity 2006 2007 2008 2009 2010
Wemmershoek 58,644 82.6 87.1 93.1 98.0 92.2
Steenbras Lower 33,517 92.4 95.4 94.8 95.6 65.1
Steenbras Upper 31,767 100.9 102.1 97.5 98.1 100.3
Voelvlei 164,122 99.6 99.3 97.6 96.6 97.1
Theewaterskloof 480,250 81.7 102.9 101.3 100.7 90.3
Berg River 130,000 100.7 100.0 96.6
TOTAL 898,300 86.9 100.6 99.6 99.4 92.0
Dam Storage capasity 2006 2007 2008 2009 2010
Wemmershoek 58,644 82.6 87.1 93.1 98.0 92.2
Steenbras Lower 33,517 92.4 95.4 94.8 95.6 65.1
Steenbras Upper 31,767 100.9 102.1 97.5 98.1 100.3
Voelvlei 164,122 99.6 99.3 97.6 96.6 97.1
Theewaterskloof 480,250 81.7 102.9 101.3 100.7 90.3
Berg River 130,000 100.7 100.0 96.6
TOTAL 898,300 86.9 100.6 99.6 99.4 92.0

Even though dams levels are fairly close to capacity, it should be remembered that Cape Town experienced several bursts of heavyish rain over winter. These outbreaks of rain allowed our dams to fill while little water was able to seep into ground water supplies. This rainfall pattern will result in many wellpoints and boreholes running dry over the summer months.

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