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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.


Rainfall in January was below average in our Southeast region, at 67% of LTA. This has resulted in a slight decline in groundwater levels, following significant recovery in November and December. Levels remain above the average for the time of year, and are unlikely to decline to drought zone 1 over the next 9 months, even under a sustained low rainfall scenario (60% of LTA rainfall).

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