Don Farrell (SA, Australian Labor Party, Parliamentary Secretary for Sustainability and Urban Water) Share this | Hansard source

I thank Senator McKenzie for her question. Most of this work has been done by the states. We are working closely with the states to find out where they have identified these constraints. We will continue to do that, and at this point in time I cannot give you an exact figure. If I could give an exact figure I would give it to you, but I cannot.