WASHINGTON, Sept. 25 - Topping the federal government’s list of costs related to Hurricane Katrina is the $568 million in contracts for debris removal landed by a Florida company with ties to Mississippi’s Republican governor. Near the bottom is an $89.95 bill for a pair of brown steel-toe shoes bought by an Environmental Protection Agency worker in Baton Rouge, La.

The first detailed tally of commitments from federal agencies since Hurricane Katrina hit the Gulf Coast four weeks ago shows that more than 15 contracts exceed $100 million, including 5 of $500 million or more. Most of those were for clearing away the trees, homes and cars strewn across the region; purchasing trailers and mobile homes; or providing trucks, ships, buses and planes.