POST FALLS – Robin Hutchins has seen a lot of code violations – yards littered with junk cars, old appliances and piles of lumber, vehicles abandoned all over town and stacks of water-filled tires – but nothing compared to what was left behind at a former trailer park which became a dumping ground after it was left vacant. Trash piled up, vandals destroyed vehicles and buildings, and some used bathrooms inside abandoned trailers even though the plumbing was turned off. Hutchins, a code enforcement officer for the Post Falls Police Department, helped lead the clean-up.