§ 40. Mr. David James
asked the Secretary of State for the Environment what investigation is being made into re-using materials from refuse and spoil tips.
§ Mr. Peter Walker
The Laboratory at Warren Spring of the Department of Trade and Industry is investigating the possibilities of recovering material from refuse and other wastes; further projects are being undertaken at universities; the use of waste from spoil heaps for purposes of road fill has been the subject of a recent investigation by a working party of my Department; and the industries involved in mineral extraction are themselves looking into ways of re-using their wastes.