The document discusses the risks that proposed infrastructure plans pose to the Mary River's low flows. It argues that removing water from the river and constructing dams will likely exacerbate existing problems during dry seasons, as the river already experiences major issues with low flows. To protect the low-flow regime and mitigate these impacts, significant environmental flow releases would be needed from any new dams, but this would reduce the economic viability of the proposed infrastructure projects. There may be better options for urban water supply than these plans.