Who do I contact about an unsanitary hostel in Montreal/Quebec?

If you are in Montr�al, you can call Info-Sant�,(514) 731-8531 ( in C�te-des-Neiges neighbourhood : they offer service in english ) they give advices when you are sick so I think they could help you find someone to report that. Actually, I am quite amazed about that story, where's that place ? in old Montr�al ?