What is known is that a project such as the one described by the SNBB in 1972 would have a devastating impact on the ecology of western Canada.
In 1972 the SNBB had decided that "...some consideration should be given to subjects other than water supply even though no such provision had been made in the terms of reference." With this said "...
The SNBB report did not even attempt to bring the various recommendations - from the very preliminary analysis of the impacts on the environment - together to form an integrated approach to the study.
To date many of the diversion and storage schemes identified in the SNBB report have been implemented in some form or another.
The SNBB study and the follow up report by the PPWB in 1982 are no exception.