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NATIONAL WATER RESOURCE STRATEGY SOUTH AFRICA’S WATER SITUATION AND STRATEGIES TO BALANCE SUPPLY AND DEMAND LIMPOPO WMA

NATIONAL WATER RESOURCE STRATEGY SOUTH AFRICA’S WATER SITUATION AND STRATEGIES TO BALANCE SUPPLY AND DEMAND LIMPOPO WMA. WMA 1: Limpopo - Rainfall and Evaporation. WMA 1: Limpopo - Base Map. WMA 1: Limpopo - Land Use. WMA 1: Limpopo - Sectoral Water Requirements (2000). National.

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NATIONAL WATER RESOURCE STRATEGY SOUTH AFRICA’S WATER SITUATION AND STRATEGIES TO BALANCE SUPPLY AND DEMAND LIMPOPO WMA

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  1. NATIONAL WATER RESOURCE STRATEGY SOUTH AFRICA’S WATER SITUATION AND STRATEGIES TO BALANCE SUPPLY AND DEMAND LIMPOPO WMA

  2. WMA 1: Limpopo - Rainfall and Evaporation

  3. WMA 1: Limpopo - Base Map

  4. WMA 1: Limpopo - Land Use

  5. WMA 1: Limpopo - Sectoral Water Requirements (2000)

  6. National Limpopo WMA Sectoral contributions to the economy (1997) 30 % 20 % Contribution 10 % 0 % Other Trade Mining Finance Transport Electricity Agriculture Community Government Construction Manufacturing

  7. WMA 1: Limpopo - Water Availability (2000)

  8. WMA 1: Limpopo - Water Reconciliation (2000)

  9. WMA 1: Limpopo - Population scenarios

  10. WMA 1: Limpopo - Water Reconciliation (future)

  11. WMA 1: Limpopo - Groundwater • Groundwater utilisation of major importance - only dependable source of water for many users • some rural requirements supplied from groundwater • some larger centres supplied with water from well fields • Groundwater widely used for stock watering - also abstracted for irrigation • Some casesdirect surface / groundwater connectivity • Recharge can also be induced through pumping in close proximity of the rivers • Artificial recharge of groundwater in upper Sand River • Localised over-exploitation of groundwater • Abstraction of groundwater approximately in balance with the long term sustainable yield

  12. WMA 1: Limpopo - Water quality • In the natural state the quality of surface water is good, particularly in the Waterberg area • Turbidity can be high during flood flows • High mineral content in localised areas near Limpopo River and in Mogalakwena catchment • Quality of groundwater in WMA generally good • No pollution of groundwater has been recorded.

  13. WMA 1: Limpopo - Key issues • Water resources nearly fully developedwith all available water being highly utilised • Limited options for further resource development exists - attributable to the arid climate, unfavourable topography, sandy rivers as well as important conservation areas • Resources and requirements approximately in balance at present • Implementation of the Reserve is expected to result in serious deficits in some of the main river catchments

  14. WMA 1: Limpopo - Key issues (2) • Planning has been made for large new mining developments in the Mokapane-Mogoto areafor which additional water will be required • Urban and industrial growth will mainly be concentrated in the Polokwane area, where local water resources already are in short supply and need to be augmented by transfers from other WMAs. • Bela Bela and Louis Trichardt are dependent on transfers in for part of their water supplies • Possibility for new power stations and/or petrochemical industries to be developed around the coalfields in the Lephalale area

  15. WMA 1: Limpopo Water resources under control of the Minister • Transfer in from Olifantspoort Weirto Polokwane • Transfer in from Ebenezer Dam and Dap Naude Dam (Luvuvhu/Letaba WMA) to Polokwane • Transfer in from Albasini Dam to Louis Trichardt • Some of the growth in effluent return flows in neigh-bouring Crocodile River may be required for development of coal reserves in the Ellisras area • Development of Rooipoort Dam on Olifants River • Development of new dams or large water resource projects subject to national authorisation • Transfer of water from Crocodile West and Marico WMA to Modimolle and Nylstroom

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