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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.


As with our other regions, rainfall in our East region has continued to be above average this winter, with 162% LTA rainfall in December. Groundwater levels have recovered further at a steeper than average rate and are now above average for the time of year. Predictions indicate that under most rainfall conditions, levels are expected to remain above the LTA until at least autumn 2020. Under a very low rainfall scenario (60% LTA), levels may dip below the LTA and track drought zone 1.

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