Time to relax water restrictions
Thanks to the rain that is still falling heavily, the water stored in Brisbane’s dams has now reached 60 per cent of their capacity. That was to have been the trigger for a relaxation of the (very stringent) water restrictions now in place, but the Water Commission has now decided* that regardless of how much water there is, the restrictions will remain until December.
This strikes me as a very foolish decision. The restrictions are socially very costly, and the risks associated with their removal very small. The construction of the water grid and the existence of a recycling plant (to be used if supplies fall below 40 per cent), combined with a sustained reduction in use, mean that the risk of a sharp decline in availability is small, and the restrictions could always be reimposed if necessary.
On the other hand, there is a significant risk that the water we are saving will end up being released to flow out to sea. The only dam in the system with any significant capacity remaining is Wivenhoe, which was built for flood control. Once it reaches 70 per cent capacity or thereabouts (that would correspond to about 80 per cent for the system as a whole) the operators will have to open the gates. More rain like we are seeing now, combined with an early and heavy wet season, would see this level reached by December or even earlier.
I’m not sure if this decision is related to the restructuring of the water industry, which has been modelled on the approach used for electricity. The electricity reforms have scarcely been an unqualified success and water is a very different commodity, so I’m dubious about the merits of this idea, which looks like a stalking horse for privatisation. Or maybe (though again I can’t see the rationale) the restrictions are being maintained to ensure that the Traveston Dam project isn’t derailed. The only other explanation for the decision is hair-shirt bloody-mindedness, which is plausible enough I suppose. I can’t really connect these dots.
*Elizabeth Nosworthy, identified with the promised relaxation, has been given the boot as Water Commisssioner.