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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 has continued to be above average through the winter, with our Southeast region receiving 154% LTA rainfall in December. As a result, groundwater levels have continued to increase significantly and they are well above the drought zone 1 trigger. Soil moisture deficit (SMD) remains below average, which means rainfall is expected to continue to contribute towards recharge. Predictions indicate that even under a very low rainfall scenario (60% LTA), levels are unlikely to return to drought zone 1 over the next 10 months.

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