Waste management In 1,880 tonnes) were collected from our global drilling and production operations and returned to shore for disposal; 184 tonnes (2010: 539 tonnes) was hazardous waste, 836 tonnes (2010: 688 tonnes) was non-hazardous waste e.g. scrap metal, wood, plastic, etc. and 474 tonnes (2010: 653 tonnes) consisted of drill cuttings that were shipped to shore and processed through certified waste handling contractors.