Abstract: A remediating apparatus has a conveyor which moves contaminated material, a main hopper which holds a load of contaminated material and dispenses the material onto the conveyor at a receiving location, and an auxiliary hopper adjacent the main hopper which holds a load of an absorbent material and dispenses the material onto the contaminated material as the material is moved toward a transfer location. The apparatus also has an oxidizing material applicator and an aerator associated with an elongated mixing chamber. Also, a mixing and conveying auger rotatably mounted in the mixing chamber concurrently mixes the contaminated and absorbent material received in the mixing chamber at the transfer location and transports them from the transfer location to a deposit location. Spray nozzles of the applicator connected in communication with the mixing chamber spray pressurized oxidizing material on the mixture of contaminated and absorbent materials.