This section provides links to the New Zealand Waste List (L-Code). The L-Code was adapted from international lists and has been modified to reflect typical waste streams in New Zealand. The L-Code provides guidance on identifying wastes in a consistent manner and serves as the basis for record-keeping systems, particularly for hazardous wastes. 

Wastes resulting from exploration, mining, quarrying, and physical and chemical treatment of minerals

The specific waste streams for the industry you are seeking are listed below. Note that each waste is assigned a unique 6-digit code (L-Code). Wastes marked with an asterisk (*) after their L-Code should be treated as hazardous.

Code

Waste

01 01 Wastes from mineral excavation
01 01 01 Wastes from mineral metalliferous excavation
01 01 02 Wastes from mineral non-metalliferous excavation
01 03 Wastes from physical and chemical processing of metalliferous minerals
01 03 04* Acid-generating tailings from processing of sulphide ore
01 03 05* Other tailings containing hazardous substances
01 03 06 Tailings other than those mentioned in 01 03 04 and 01 03 05
01 03 07* Other wastes containing hazardous substances from physical and chemical processing of metalliferous minerals
 01 03 08 Dusty and powdery wastes other than those mentioned in 01 03 07
01 03 09 Red mud from alumina production other than the wastes mentioned in 01 03 07
01 03 99 Wastes not otherwise specified
01 04 Wastes from physical and chemical processing of non-metalliferous minerals
01 04 07* Wastes containing hazardous substances from physical and chemical processing of non-metalliferous minerals
01 04 08 Waste gravel and crushed rocks other than those mentioned in 01 04 07
01 04 09 Waste sand and clays
01 04 10 Dusty and powdery wastes other than those mentioned in 01 04 07
01 04 11 Wastes from potash and rock-salt processing other than those mentioned in 01 04 07
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
01 04 13 Wastes from stone cutting and sawing other than those mentioned in 01 04 07
01 04 99 Wastes not otherwise specified
01 05 Drilling muds and other drilling wastes
01 05 04 Fresh-water drilling muds and wastes
01 05 05* Oil-containing drilling muds and wastes
01 05 06* Drilling muds and other drilling wastes containing hazardous substances
01 05 07 Barite-containing drilling muds and wastes other than those mentioned in 01 05 05 and 01 05 06
01 05 08 Chloride-containing drilling muds and wastes other than those mentioned in 01 05 05 and 01 05 06
01 05 99 Wastes not otherwise specified