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Aurecon 360 Issue 8 - Thinking in action

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Page 41 of 43

Reconciliation Strategy for the Western Cape Water Supply System by André Görgens, Aurecon's Water Resources Leader South Africa's Western Cape Water Supply System (WCWSS) serves more than 3.2 million people living in the City of Cape Town (CCT) and a range of nearby towns, as well as many irrigators along various rivers. This area generates approximately 14% of the national GDP of South Africa. The initial WCWSS Reconciliation Strategy was completed by Aurecon in 2007. The Strategy's aim was to reconcile future water requirements with supply for a 25-year planning horizon, and to provide a framework for decision-making such that water security for the region was understood and delivered. and industry, the Committee actively monitors implementation of and adherence to the Strategy by all role players. Under the guidance of Aurecon, the Committee updated the Strategy in 2011 on the strength of additional information that had become available to Aurecon since the original Strategy was developed. In September 2007, a Strategy Steering Committee was formed. With representatives from all three tiers of Government, organised agriculture Water requirements and availability "Prior to commencing the Strategy development process, it was clear WCWSS: Reconciliation of supply and requirement 1000 Annual requirement (million m3/a) Existing system yield 900 High water requirement High water requirement with WC/WDM Actual water requirement 800 700 600 500 400 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023 2025 2027 2029 2031 2033 2035 2035 Throughput Figure 1 High Water Requirements to 2035

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