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CIMIC Group Limited Annual Report 2016 |
Sustainability Report
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In 2016, we generated a total of 502,047 tonnes of waste, of which 64% was diverted for recycling and the balance was disposed of in
landfill.
Waste generation (tonnes)
CPB Contractors
Leighton Asia
Thiess
Landfill
44,119
52,151
7,710
Recycled
264,628
128,415
5,023
The Group is not aware of having transported, imported, exported or having treated any hazardous waste and has not shipped any
hazardous waste internationally.
CPB Contactors has successfully delivered the MIRRAT facility in Victoria. The project has become the first in the state to be awarded a ‘6-
Star Green Star’ ‘Design’ rating from the Green Building Council of Australia and ‘Excellent’ rating in both the ‘Design’ and ‘As-Built’
categories from ISCA. The facility will be Australia’s largest car terminal, with a berth length of 920 metres and the capacity to handle up
to one million units a year. Sustainability initiatives included:
•
over 260,000 tonnes of recycled brick, glass and concrete used in the construction of the pavements across the site;
•
95% of the waste generated onsite during construction has been recycled;
•
recycled sand has been used throughout the site to backfill trenches;
•
through the use of recycled materials and efficient design the carbon footprint of the materials used in the facility has been reduced
by over 30%, which equates to over 4,000 tonnes of CO2 and
•
rainwater harvesting is being used across the site to provide water for the wash-bay and toilet flushing.
The project features a host of other sustainability initiatives.
PROTECTING BIODIVERSITY
We aim to avoid environmental impacts to sensitive locations during the design and planning phases of our diverse infrastructure,
resources and property projects. Where this is not possible, we deploy strategies to minimise disturbance while efficiently, effectively and
safely completing work. In areas with sensitive ecological communities, the Group employs a range of measures to manage and mitigate
potential impacts. Central to this is the development of biodiversity management plans that consider local contexts, baseline surveys,
monitoring results and specialist advice.
The rehabilitation of disturbed areas remains an integral element of dealing with biodiversity on our construction, mining projects and
services. This typically involves progressively reshaping disturbed areas, establishing erosion control structures, and topsoiling and
seeding. Rehabilitation aims to ensure that areas are safe, stable and suitable for agreed land uses, such as agriculture, grazing or natural
habitats. In 2016, Thiess rehabilitated 1,314 hectares of land on its mining projects.
Rehabilitation of mining area (ha)
Reshaped
Top-soiled
Seeded
Australia/Pacific
266
228
99
Asia
314
408
0
Total
580
635
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At the Moreton Bay Rail (MBR) project in Queensland, CPB Contractors successfully dealt with a number of environmental challenges
including undertaking substantial ‘Greenfield’ works within populated residential areas and dense coastal bushland. Notably, the project
intersects estuarine and freshwater waterways, and is adjacent to the Moreton Bay Marine Park and Ramsar-listed
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Hays Inlet. Key
project initiatives include:
•
detailed design to avoid disturbance and prioritised drainage construction to minimise onsite water-management devices;
•
prioritisation of erosion controls to reduce sedimentation management needs;
•
seasonal earthworks programming to avoid high rainfall months and elevated erosion periods;
•
catchment size reduction to allow use of type-two controls that reused mulch (over 5,000 cubic metres) and rock from site works;
•
use of short and long-term stabilisation techniques, and innovative soil-binding technologies, to reduce water quality impacts and to
avoid large, traditional sediment basins;
•
application of more than 173,100 square metres of hydro-seed, 13,500 square metres of bonded fibre matrix and 16,000 square
metres of turf; and
•
community group involvement in rehabilitating marine-plant areas.
These key initiatives resulted in a timely delivered project, successfully rehabilitated sites, 0 environmental incidents and a positive
relationship developed with the surrounding community.
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The Convention on Wetlands of International Importance, called the Ramsar Convention, is the intergovernmental treaty that provides the framework
for the conservation and wise use of wetlands and their resources.
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