Charlie,
The vast majority of Atlantic salmon eggs brought to BC for aquaculture came from Washington State.
None have come from Norway.
http://www.pac.dfo-mpo.gc.ca/aquaculture/reporting-rapports/egg-oeuf-eng.html
Also, Creative Salmon raises Chinook reared from local stock (Qualicum River originally, I think) in their hatchery near Duncan.
The data you linked to shows:
11.7 Million eggs with a source that is labeled exclusively as Washington State
9.1 M eggs with a source that is not from Washington State and
7.6M eggs with a source that is some combination of Washington State and other locales.
For the most recent years shown (2002-2012), all the eggs (7.85M) came from Iceland.
From that data it is hard to come to the conclusion that "The vast majority of Atlantic salmon eggs brought to BC for aquaculture came from Washington State" but it is clear that none came directly from Norway. The Icelanders have been culturing salmon for quite awhile (early 1900's) so it is fairly clear that their eggs are sourced and the broodstock salmon are obtained locally.