Of some 2,000 natural wetlands in the Goulburn Broken area, only four in the Goulburn catchment (Reedy Swamp, Gaynor Swamp, Stockyard Plain and Doctors Swamp) can currently receive environmental water.
All the Goulburn wetlands can receive environmental water via irrigation supply infrastructure in the Shepparton and Central Goulburn irrigation districts. The volume delivered at any one time depends on the available capacity in the irrigation supply network and may also be negotiated with adjacent landholders.
Reedy Swamp is naturally inundated when flow in the Goulburn River exceeds about 20,000 ML/day. Doctors Swamp can only receive environmental water if the Cattanach Canal is running at 2,500 ML/day and there is available capacity after irrigation demand and operational requirements are met. The opportunity to deliver environmental water to Reedy Swamp is greater in autumn and winter.
Environmental water has not been delivered to Gaynor Swamp or Stockyard Plain. Infrastructure to allow environmental water to be delivered to Gaynor Swamp is due to be completed by autumn 2018, whereas the delivery of environmental water to Stockyard Plain is subject to an agreement with private landholders.