used to live in the area too.
this report reminds me back 80-90's. i used to go fishing after school in Orphan school creek from Avoca rd, Fairfield west to Railway Pde, Canley vale. used to catch carps, guppy, eels and some turtles.
link to fish found in the creek in 2002
http://www.fairfieldcity.nsw.gov.au/upload...h_Creek_doc.pdf