The condition of waterbird habitat in Zone D did not improve under any 350 GL scenarios compared to the 'Reference' scenario score (0.37). The scores increased to 0.40-0.41 for the 750 GL scenarios and to 0.42-0.43 for 1500 GL scenarios. The 'cap' and 'b' operational scenarios generally produced higher scores than the 'c' scenarios for the 750 and 1500 GL flow volumes.

More information:

Zone D Regional Evaluation Group Report [PDF 3.2 MB]
Report to the Scientific Reference Panel for Zone D: Wakool Junction to Lock 11