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Groundwater flow modelling

Firstly, a suitable conceptual model was constructed based on the information gained from the drilling investigation and the pumping test, together with topographic and climatic data. This conceptualisation was adapted to the groundwater simulation program MODFLOW (McDonald and Harbaugh 1988) coupled with the preand post-processor PMWIN version 5.0 (Chiang and Kinzelbach 1998) and was calibrated in steady-state against observed groundwater levels. The model was then used to simulate the effects of three different strategies: 'do nothing differently', groundwater abstraction and revegetation.