In one aspect of the invention, an aggregate removal system includes a self propelled vehicle with a frame and a conveyor. The conveyor has an intake end and an output end. A milling drum is connected to an underside of the frame and is enclosed within a milling chamber, which is defined by a front plate, side plates, and a moldboard. The drum is configured to drop aggregate within the milling chamber onto the intake end of the conveyor that protrudes into the milling chamber. The conveyor is configured to remove the aggregate from the milling chamber, and the conveyor also has at least one dust suppressant nozzle configured to apply a dust suppressant to aggregate carried by the conveyor.