Woronora Dam

[Nuttynatty]

Hi all

I have a friend who fishes often and is very competent but always complains that when the river is not fishing well that cold deoxygenated water has been released from the Woronora Dam. I'm not convinced and just keep fishing. 

Does anyone know if water is ever released and if so any details about it because I fail to see how any water if any at all is released as many parts of the river at low tide are almost impassable due to silting / sandbars and I've never seen any evidence of released water. 

Thanks in advance.