an apparatus for simultaneously separating debris from topsoil and re - spreading the debris - free soil on the ground . the apparatus consists of a conventional , earth moving tractor to which a chassis is mounted and which carries a plurality of soil treating devices in series . the chassis includes a soil carrying and conveying paddle assembly mounted across the width of its front end which scoops up the debris laden soil off the ground . a conventional , vibrating table for separating the debris from the soil is mounted across the width of the chassis , adjacent to the paddle assembly , and the debris - laden soil is deposited onto the vibrating table from the paddle assembly . once the vibrating table has separated the debris from the soil , the soil falls through the chassis &# 39 ; open bottom back to the ground , and the debris is ultimately moved to a conveyor assembly . the conveyor assembly carries the debris from the vibrating table and deposits it in a collection bin mounted across the back width of the chassis . the collection bin includes an alarm system to indicate to a driver of the tractor when the bin is full , and further includes a trap door assembly in the bin &# 39 ; s bottom which permits the driver to selectively open or close the door from the driver &# 39 ; s compartment . hence , the driver is alarmed as to when the bin is full , and may then drive the apparatus to a refuse dump site , remotely open the trap door assembly , and then remotely close the door and continue working .