East Region
*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 September at 177% of the Long Term Average (LTA). Over the last three months (July to September inclusive), our East region has received equal to average rainfall (101% of the LTA) and effective precipitation (103% of the LTA). Soils dryness (SMD) is now average, meaning any forthcoming rainfall is likely to provide average contribution to groundwater recharge.
Groundwater levels continued to decline at a similar rate to the LTA through September but remain above average due to the above average rainfall over the last recharge period. Groundwater levels are likely to remain above average over the next six months if rainfall is more than 80% of the LTA. Groundwater levels are currently higher than the above average conditions experienced in 2014 and 2021 at the end of September.
Please refer to our Drought Plan for what this means for us and our customers.