WCN 01 03 04 * - acid-generating tailings from processing of sulphide ore,WCN 01 03 05 * - other tailings containing hazardous substances,WCN 01 03 06 - tailings other than those mentioned in 01 03 04 and 01 03 05,WCN 01 04 12 - tailings and other wastes from washing and cleaning of minerals other than those mentioned in 01 04 07 and 01 04 11