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Groundwater levels

SouthEast Region


Central region water levels hydrograph

*The long term average (LTA) has been calculated statistically, using the long term data record for this hydrograph. The respective drought zones are used as operational triggers, and have been derived using the LTA.

*Drought zone 1 is the LTA in Southeast region.


October rainfall in our Southeast region was significantly higher than the previous month and the LTA, at 240%. As a result groundwater levels in the region have started to increase, converse to the LTA trend, and remain above the LTA for the time of year. Predictions indicate that recovery is likely to continue over the coming months, if more than 60% LTA rainfall is received. Levels are likely to remain above the LTA for the next seven months if we receive over 80 % of the LTA rainfall.

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