City’s drenching has little impact on falling dam level
It may have been the heaviest rainfall in Sydney since 1984 but last week’s freak deluge has failed to replenish the city’s water supply, delaying the imminent activation of the city’s desalination plant by about two weeks.
Despite Sydney’s monthly average rain for November falling in under an hour last Wednesday morning, underwhelming river flows from last week’s chaotic event meant the city’s water supply sat at 61.4 per cent yesterday — just 1 per cent higher than it was before the rain began. Much of the rain was absorbed by parched land, which reduced flows into the dams.
Before last week’s rain, the city’s dam levels dropped to as low as 60.3 per cent, just above the 60 per cent trigger when orders are sent to turn on the desalination plant in the city’s south. Built in 2010 at a cost of $1.8 billion, the Kurnell facility has never been switched on.