I just tallied the spreadsheet from NSW Water click on Daily River Reports on the left which brings up a spreadsheet in two sections. One with River Levels & Flows and a second with Dam Levels. I summed the flows for rivers between the Hunter and Tweed and it made 6 Million ML which is 6 Thousand GL or 12 Sydney Harbours. There is no discussion whatsoever about a dam or two in headwaters where water could be piped through to the western rivers. A sort of Mini version of Bradfield.