Xstrata Copper North Queensland.pdf - Mount Isa Mines

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Environmental performance Phil Abel – Apprentice Electrician, and Robert Van Ryt – Electrician, recycle fluorescent light tubes using a Fluro Disposal Machine Water management Effective water management and conservation is critical to the long-term viability of the Xstrata Copper North Queensland Division. Our operations have taken an integrated approach to water management. Our key focus is to minimise fresh water usage and maximise process water recycling and usage at our operations. Alternative water sources to fresh water used at our operations include harvested stormwater, underground mine dewatering, water recycled internally within plant areas, return water from tailings thickeners and tailings decant water. Biodiversity Biodiversity and its management are of strategic importance to the Xstrata Copper North Queensland Division. We are committed to the integration of biodiversity conservation considerations into environmental and social decision making in the search for sustainable development outcomes. Emissions Emissions monitoring, control and impact reduction strategies are a major component of environmental management at the Xstrata Copper North Queensland Division. Each of our north Queensland operational sites are complemented with their own comprehensive network of dust monitoring systems. These systems are essential to minimise the impact of our activities on the environment and on the communities in which we operate. Water use – Xstrata Copper North Queensland GL 15.0 12.5 10.0 7.5 5.0 9.5 9.3 8.9 8.5 8.5 In 2010 Xstrata invested in excess of $8.7 million at its north Queensland operations on a range of initiatives to further improve the management and reduction of emissions. Further information on these initiatives can be found throughout this section. Our north Queensland operations do not emit ozone depleting substances. Waste and tailings management Xstrata’s Product Stewardship standard requires that all operations eliminate, reduce, reuse, recycle where practicable or responsibly dispose of waste generated. In line with this standard, the Xstrata Copper North Queensland Division has a waste management system that is continually evolving to suit the needs of operational areas. At its core is a waste management contract for general waste and scrap metal collection based on a ‘polluter pays’ principle. Waste costs are distributed to departments according to the volume they generate. The incentive is that any money received through scrap metal recovery in their area is credited back to the department responsible for that area. Materials The Xstrata Copper North Queensland Division is committed to the efficient use of input materials and actively seeks opportunities for reducing input consumption. Material usage is recorded at our operations to ensure they can be tracked and managed responsibly. Where practical alternatives exist, hazardous materials are replaced by less hazardous products, to ensure the impact from our operations is reduced and appropriately managed on an ongoing basis. Consumption information is also used as part of the National Pollutant Inventory (NPI) and other reporting requirements. 2.5 0 2006 2007 2008 2009 2010 82 XSTRATA COPPER NORTH QUEENSLAND
Environmental performance Above: Wild camels graze alongside the Duchess Highway near Mount Isa Left: Townsville operations’ Environmental Advisors check the copper refinery’s first flush and stormwater drainage system Major waste streams and disposal/treatment methods – Xstrata Copper North Queensland Division Waste type Amount Treatment methods Recycled/reused Batteries (t) 112 Recycled off site Conveyor belt (m) 2,322 Repaired and reused on site General/domestic waste (t) 36 Recycled Scrap metal (t) 4,364 Recycled off site Waste oil (kL) 885 Recycled off site Spent electrolyte (t) 4,244 Recycled in Xstrata Mount Isa Mines’ electrostatic precipitator dust leaching plant Waste sent to landfill General waste – to landfill on site* General waste – to landfill off site* Hazardous wastes – disposed on site Scrap metal – to on-site landfill Mining wastes Excavated materials, overburden and waste rock (t) 6,544 General waste at Xstrata Mount Isa Mines and EHM is disposed of in on-site landfills (t) 138 General waste from the Townsville copper refinery, and some general waste from EHM is sent to offsite landfills (t) 10,927 Xstrata Mount Isa Mines maintains a regulated landfill; in which some of hazardous wastes generated on site, and by other Xstrata North Queensland operations is disposed (t) 268 Scrap metal that is unable to be reclaimed for recycling is disposed of in the Xstrata Mount Isa Mines regulated landfill (t) 16,782,266 Stored as per Department of Environment and Resource Management (DERM) requirements Processing wastes Tailings (t) 17,991,087 Stored as per DERM requirements (t) 2,722,245 Recycled as underground fill in the copper operations at Xstrata Mount Isa Mines (includes tailings waste from the copper and zinc-lead concentrators) * From 2010, general waste will be broken down into general waste disposed to landfill on site, off site, and recycled. This figure was previously combined. Land disturbed (ha) – Xstrata Copper North Queensland 2009 2010 Rehabilitation during the year 28 25 Total rehabilitation completed to date 160 185 Area disturbed during the year 23 39 Total area disturbed 3,155 3,266 Total materials usage – Xstrata Copper North Queensland Division Product Annual usage Acetylene (m 3 ) 4,823 Cement (t) 111,720 Coal (t) 11,802 Coke (t) 846 Flocculants (t) 496 Gelatin (t) 22 Grinding media (t) 15,772 Lime/limestone – other purposes (t) 13,206 Limestone – flux (t) 8,760 Oils and greases – lubricating, hydraulic, cooling Oxygen purchased (not made on site) (kL) 2,556 (m 3 ) 22,100 Silica (t) 32,956 Sodium carbonate (t) 60 Sodium hydroxide (t) 34 Sulphuric acid (t) 1,579 Thiourea (t) 28 Tyres used – large vehicles, heavy equipment No. 431 Tyres used – light vehicle No. 2,529 Xanthates and other floatation reagents (t) 1,774 Fuel consumed Diesel (kL) 58,654 Kerosene (used but not combusted) (kL) 15 LPG (kL) 322 Unleaded fuel (kL) 258 Wood (t) 184 Explosives Explosives (t) 10,997 Sustainability Report 2010 83
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Xstrata Copper North Queensland Sus
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Xstrata Copper North Queensland Xst
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Chief Executive’s message Environ
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Chief Operating Officer’s message
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Targets and scorecard We strive for
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Targets and scorecard Our People Mo
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Targets and scorecard Environment X
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Scope of report This report provide
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Our Sustainable Development Strateg
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Strategy and governance Left: Loadi
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Corporate governance Public policy
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Our operations and economic perform
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Workplace health and safety We aim
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Page 47 and 48: Our people Labour relations In 2010
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Page 53 and 54: Our people case study Transitioning
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