I am a resident of this area for 30 years, the problem with the apartments in the area has been a continuing problem! Whenever a occupant moves or buys a new mattress or couch they put it out on the curb and put a for sale sign on the refuse!
I have no idea what the fix would be other than a continual patrol of the area!!

Unfortunately, unless there is a witness who will advise who placed it there, staff is at a loss. If witnessed, it can be treated as a litter dump. It would be nice if the property owners will make sure their tenants properly dispose of items when they vacate. Craig's list is a good resource for recycling gently used items! Thanks for your concern - it's appreciated.