The St George channel scheme comprises 112 kilometres of pipelines and channels, between the Balonne River and Buckinbah pump station. It distributes water to around 50 customers, irrigating 10,000 hectares of land.
In March 2018 St George channel irrigators accepted an offer for the channel assets to be transferred from SunWater to the irrigator-owned company, Mallawa Irrigation Ltd.
From July 1, 2018 Mallawa Irrigation took over ownership and management of the scheme. SunWater continues to manage the bulk assets, including the dam.