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Water Reconciliation Strategy Study for the Large Bulk Water Supply Systems: Greater Bloemfontein Area 13 In Botshabelo, the largest proportion of the current water use is residential use, representing 40.5% of the total use. “Unaccounted for water” comprises 31% of the total metered bulk water supplied. Commercial use accounts for 20% and other supply accounts for 8%. Figure 4.4: Current Water Use for Botshabelo In Thaba Nchu, physical losses (unaccounted for water) accounts for 94% of the total water use, while residential and commercial use accounts for 3.5% respectively. Figure 4.5: Current Water Use for Thaba Nchu 4.1.3 Agricultural Water Requirements For the purposes of this study, agricultural water requirements were considered in two areas, namely: 1) in the Modder-Riet Catchment upstream of Krugersdrift Dam; and 2) along the Caledon River. Figure 4.6 shows the registered water use and resource allocation in the quaternary catchments surrounding the Greater Bloemfontein Area. Based on the allocations to the different water sectors (agriculture and urban), it is evident that the two sectors do not share any allocation from dams situated within the Modder-Riet Catchment upstream of Krugersdrift Dam. In terms of the yield modelling of the Welbedacht/Knellpoort System, the existing agricultural water requirements along the Caledon River, both upstream and downstream of Welbedacht Dam, and the proposed water requirements of the resource poor farmers, were taken into account. Interventions Report June 2012
Water Reconciliation Strategy Study for the Large Bulk Water Supply Systems: Greater Bloemfontein Area 14 Figure 4.6: Registered Water Use and Resource Allocation in the Quaternary Catchments Surrounding the Greater Bloemfontein Area Interventions Report June 2012
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