What companies in Canada are doing projects on upstream automated control of wet weather flows?
The companies working in that field from what I know:
Tetratech CSO that is an engineering consulting firmspecialized in control and system optimization you can see few of their projects here http://www.tetratechcso.com/index.php/en/about/our-projects
Grande water management a supplier of equipment http://grandeinc.com/
I don't know any other in Canada but there si probably some other ones.