Environment Report 2013

ENVIRONMENT REPORT 2013

Waste Categories

To manage wastes effectively and to help develop trend data, wastes are categorised according to their hazardous properties. These are:

Special Wastes Essentially any waste with hazardous properties which may render it harmful to human health or the environment (in current legislation now referred to as ‘hazardous waste’). These include: • Chemicals/paints – paints, adhesives, hazardous completion/ workover/drilling fluid additives, solvents, hazardous chemicals, hazardous brines • Drums/containers – nominally empty drums containing hazardous residues • Oils – lubricants, engine/hydraulic oils, crude oil • Miscellaneous special waste – transformers, capacitors, batteries, extinguishing agents, aerosols, contaminated filters, oily rags, refrigerants, absorbents, molecular sieves, contaminated shot blast, contaminated swarf, polychlorinated biphenyl, contaminated casing/pipe protectors, pipe lagging • Sludges/liquids/tank washings – oil spills, fluids containing heavy metals/hazardous chemicals, hazardous vessel tank washings, pig wax General Wastes • Chemicals/paints – non-hazardous workover/completion/drilling fluids, brines • Drums/containers – empty metal/plastic drums, dried paint cans • Scrap metal – scrap metal, wire rope, uncontaminated pipe, electric cable, non-contaminated swarf • Segregated recyclables – aluminium cans, cardboard, packaging, paper, wood, rubber, plastics, glass, fluorescent tubes, casing/pipe protectors, cooking oil • General waste – galley waste, accommodation waste, compactor waste • Sludges/liquids/tank washings – non-hazardous vessel tank washings Other Wastes • Asbestos – asbestos/asbestos-containing materials, compressed asbestos fibre joints • Radioactive materials – smoke alarms, gammatrons, emergency lighting. Excludes Naturally Occurring Radioactive Material (NORM) which is reported separately • Clinical – cinbins, soiled dressings, prescription medicines • Explosives

page 30