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Xstrata Copper North Queensland.pdf - Mount Isa Mines

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Targets and scorecard<br />

Environment<br />

<strong>Xstrata</strong><br />

<strong>Copper</strong> <strong>North</strong><br />

<strong>Queensland</strong><br />

Division<br />

2010 Target Performance 2011 Target<br />

Achieve carbon intensity of 2.8 tonnes<br />

of carbon equivalents per tonne of<br />

contained metal<br />

Achieve energy intensity of 25 gigajoules<br />

per tonne of contained metal<br />

3.0 Achieve carbon intensity of 2.96 tonnes<br />

of carbon equivalents per tonne of<br />

contained metal<br />

29 gigajoules per tonne of contained<br />

metal<br />

Achieve energy intensity of<br />

28.5 gigajoules per tonne of<br />

contained metal<br />

<strong>Mount</strong> <strong>Isa</strong><br />

<strong>Mines</strong> copper<br />

operations<br />

Continue progression of Phase 2 Air and<br />

Phase 3 Water of Lead Pathways Study<br />

Draft Phase 3 (Water) report of the<br />

Lead Pathways Study received<br />

Complete and publish both Phase 2<br />

(Air) and Phase 3 (Water) of the Lead<br />

Pathways Study<br />

<strong>Xstrata</strong> <strong>Copper</strong> Smelter Emissions Project<br />

team to complete feasibility studies<br />

Engineering studies and actions<br />

ongoing, work through continuous<br />

improvement plan actions<br />

<strong>Xstrata</strong> <strong>Copper</strong> Smelter Emissions Project<br />

team to continue with high priority<br />

actions in continuous improvement plan<br />

Review Air Quality Control Centre<br />

operation improvements and processes<br />

Review completed and improvements<br />

implemented<br />

Achieve 300 litres of fresh water per<br />

tonne of ore milled at the copper<br />

concentrator<br />

209 litres of fresh water per tonne of<br />

ore milled<br />

Achieve 260 litres of fresh water per<br />

tonne of ore milled at the copper<br />

concentrator<br />

Average 7.0 megalitres per day of mine<br />

dewatering into the recycled water circuit<br />

Averaged 7.7 megalitres per day<br />

Average 7.0 megalitres per day of mine<br />

dewatering into the recycled water circuit<br />

Ernest Henry<br />

Mining<br />

Maintain tailings underflow density at<br />

68% solids<br />

Raw water consumption<br />

< 410 litres per tonne of ore treated<br />

Re-use > 80% of pit and bore<br />

groundwater<br />

Rehabilitate 25 ha on the waste rock<br />

dumps<br />

Average underflow density of<br />

71% solids<br />

Maintain tailings underflow density at or<br />

above 71% solids<br />

373 litres per tonne of ore treated Achieve a 10% reduction in raw water<br />

consumption over 2010 use<br />

49% of pit and bore groundwater<br />

reused (refer to Environment section)<br />

25.2 ha of waste rock dumps<br />

rehabilitated<br />

Reuse ≥ 80% of pit and bore<br />

groundwater<br />

Rehabilitate 50 ha on the waste rock<br />

dumps<br />

Townsville<br />

copper refinery<br />

Townsville port<br />

operations<br />

Zero Category 2 (minor) and Zero<br />

Category 3 (significant)<br />

environmental incidents<br />

Zero non-compliances with licence<br />

conditions<br />

Two Category 2 (minor)<br />

environmental incidents occurred<br />

at the copper refinery in 2010<br />

(refer page 104)<br />

Zero Category 3 (significant)<br />

environmental incidents<br />

Zero non-compliances<br />

Zero Category 2 (minor) and Zero<br />

Category 3 (significant) environmental<br />

incidents<br />

Zero non-compliances with licence<br />

conditions<br />

Zero regulatory actions or fines Zero regulatory actions or fines Zero regulatory actions or fines<br />

Undertake an independent biodiversity<br />

study of Stuart Creek<br />

Zero Category 2 (minor) and<br />

Zero Category 3 (significant)<br />

environmental incidents<br />

Zero non-compliances with licence<br />

conditions<br />

Study completed (refer to case study<br />

on page 103)<br />

Zero Category 2 (minor) and<br />

Zero Category 3 (significant)<br />

environmental incidents<br />

Zero non-compliances with licence<br />

conditions<br />

Zero Category 2 (minor) and<br />

Zero Category 3 (significant)<br />

environmental incidents<br />

Zero non-compliances with licence<br />

conditions<br />

Zero regulatory actions or fines Zero regulatory actions or fines Zero regulatory actions or fines<br />

Achieved Not achieved Action continues into 2011<br />

Sustainability Report 2010 11

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