Gnangara 'mound cannot be saved'

The deteriorating health of the Gnangara Mound has likely reached the point of no return, with scientists saying its problems cannot be fixed because not enough is known about the sinking water table.

Brenton Knott, from the University of WA, has studied the mound at Yanchep Caves since the early 1990s. He said the situation was dire with aquatic species disappearing and the caves bone dry.
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Greens wary of big drain on Gnangara
The Water Corporation is set to extract an extra 44 billion litres of water from the depleted Gnangara Mound in the next few months, according to the Greens.

The party's claim that there will need to be a 30 per cent rise in allocation this financial year comes ahead of the scheduled negotiation between the utility and the Department of Water for the 12-month draw that will supply Perth with most of its water.