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Groundwater levels

East Region


East 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.


Rainfall in our East region was well above average in January, at 181% of LTA. This followed a very wet December, and as a result groundwater levels have continued to increase, at a faster rate than the LTA curve. Levels are now well above the LTA for the time of year, and are expected to continue to increase over the next few months if we receive 60% LTA rainfall or more. Predictions indicate that levels are likely to remain above the LTA throughout this spring, and under an average rainfall scenario are forecast to remain above the LTA through the summer. Only under a very dry rainfall scenario are levels likely to reach the LTA this summer.

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