New South Wales Consolidated RegulationsAirspace operation of Wyangala Dam shall be in accordance with the following rules:
(a) airspace is to be maintained in Wyangala Dam for the purpose of reducing downstream flood damage,
(b) the target airspace volume that is to be maintained at any time, shall be set so that the probability of the water storage volume being full, by the time significant irrigation demand commences, is at least 80%,
(c) evacuation of airspace should not result in flow at Cotton’s Weir, Forbes or at Jemalong Weir exceeding the minor flood level at these sites, and
(d) when the Wyangala Dam water storage is within 1 percent of the airspace target, airspace evacuation releases are to be maintained at the Wyangala power station capacity, if practicable.