Table ESBC scenario: Sources of additional water and related annual average volumes required to cover the sum of the individual nodal deficits in each IUA for current conditions (million m3/a) Total nodal From From From WMA deficits under Surface TMG IUA Action to supplement ESBC shortfall under current demands. portion ESBC (million water Aquifer m3/a) scheme none B5 - - none H16 - - Although IUA in surplus there is a 0.5Mm3 deficit at G50F. Brought about by a H17 - - decreasing surplus between G50D (in F10) and a smaller surplus in G50F. SO DO NOT COST F10 - - IUA in surplus and no individual nodes have a deficit. A1 - - none Must treat A2 and A3 as one due to IUA delineation. Although there are deficits in Breede the ESBC most are the result of subtracting large upstream surpluses and are not A2 + A3 4.2 1.7 2.5 meaningful. One node (Niv11) in H40C (GW= 1.7Mm3) is in deficit of 4.2Mm3. Cost 1.7Mm3@R5 and 2.5Mm3@Regional Scheme (R13). Used some of surplus in A1 (20Mm3) to put ESBC in positive B4 - - none F9 - - none Although the IUA is in a deficit of 72.6Mm3 this arises from accounting for large F11 - - upstream surpluses that get reduced in IUA F11. The IUA is still in a surplus and has no individual nodal deficits. E8 - - none none C6 - - Gouritz Although the IUA is in surplus there is a deficit at J33F of 1.6Mm3. GW availability D7 2.8 2.8 is 1.49Mm3. Get deficit of 0.11 from J35A (GW=5.6Mm3). Also a deficit of 1.2Mm3 at J35D. GW availability is 4.92Mm3
Table ESBC scenario: Sources of additional water and related annual average volumes required to cover the sum of the individual nodal deficits in each IUA for current conditions (million m3/a) WMA portion IUA Total nodal deficits under ESBC (million m3/a) From From Surface water scheme From TMG Aquifer Action to supplement ESBC shortfall under current demands. Breede B5 - - none H16 - - none H17 - - Although IUA in surplus there is a 0.5Mm3 deficit at G50F. Brought about by a decreasing surplus between G50D (in F10) and a smaller surplus in G50F. SO DO NOT COST F10 - - IUA in surplus and no individual nodes have a deficit. A1 - - none A2 + A3 4.2 1.7 2.5 Must treat A2 and A3 as one due to IUA delineation. Although there are deficits in the ESBC most are the result of subtracting large upstream surpluses and are not meaningful. One node (Niv11) in H40C (GW= 1.7Mm3) is in deficit of 4.2Mm3. Cost 1.7Mm3@R5 and 2.5Mm3@Regional Scheme (R13). Used some of surplus in A1 (20Mm3) to put ESBC in positive B4 - - none F9 - - none F11 - - Although the IUA is in a deficit of 72.6Mm3 this arises from accounting for large upstream surpluses that get reduced in IUA F11. The IUA is still in a surplus and has no individual nodal deficits. Gouritz E8 - - none C6 - - none D7 2.8 2.8 Although the IUA is in surplus there is a deficit at J33F of 1.6Mm3. GW availability is 1.49Mm3. Get deficit of 0.11 from J35A (GW=5.6Mm3). Also a deficit of 1.2Mm3 at J35D. GW availability is 4.92Mm3
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