Did they have a responsibility then to report back to you? It's out of your “Lessons Learned” report, in section 4.2, and I'll quote:
Subsequent to the outbreak, Est 97B
--which is the Maple Leaf plant--
staff provided the CFIA with documentation that the environmental sampling program for Est. 97B had identified positive results for Listeria spp. on a number of occasions between May - August.
They were not required then to report to you?