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Groundwater levels

East 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.


In East region, January was the first month of this winter to receive below average rainfall, at 76% of LTA. Groundwater levels in the region have continued to recover, albeit at a reduced rate. Levels remain above the LTA curve, and a consistent low rainfall scenario would be required for levels to decline to drought zone 1 during the seasonal recession this year.

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