I wouldn't give up hope completely on fishing around the DHALO section of Pine in Allegheny County. I know the summers can be rough on it, but it gets a fall stocking as well. I've fished it in late febuary before and was able to catch a few.
I live in the City and hit up Pine when I need a quick fix. I have always found dark buggers with a PT trailing to do well there. I have also caught a few fish on a San Juan.
Good luck if you try it again, let me know if you get any action.