We are contracted to provide multi-disciplinary and multi-site environmental consulting support for the Caloundra Road to Sunshine Motorway (CR2SM) Bruce Highway Upgrade, Australia’s first Diverging Diamond Interchange and a major road construction project in its own right.
With a focus on contaminated land, asbestos, occupational hygiene and associated environmental approvals we are also assisting with wider environmental issues associated with fauna and flora.
If you are after further information, we have summarised below the types of services we have and continue to provide until the scheduled end of the project in 2020.
REMEDIATION WORKS – LANDFILL
Approximately 15,000m3 of unexpected landfilled waste materials was intercepted during road construction works at Wilson Road. We provided a rapid response to gauge environmental risk and interim control measures, leading to a detailed assessment and supporting a staged remediation and validation over several months.
There was a high degree of stakeholder interest, with our involvement being instrumental in quickly aligning concerns with the actual (lower) risk profile, through application of good science and our experience with previous landfills and remediation projects.
ENVIRONMENTAL AND CONTAMINATED LAND ASSESSMENT
For three sites we performed a review of existing environmental assessment reports and then provided further assessment, sampling and analysis to facilitate the preferred least cost spoil disposal option. These Sites were associated with the Southbound Onramp and the Mooloolah Flood Plain North and South.
We reviewed background environmental Reports associated with flora, fauna, contaminated land and other environmental factors, as well as the proposed local receiving facility background reports and Environmental Authorities (quarry nearing the rehabilitation stage of operations) to provide an opinion on risk to project and environmental values and acceptability of material to be disposed.
For a fourth site located at the Cooroy to Curra (C2C) Bruce Highway Upgrade Site we evaluated the suitability and required further assessment and operational controls to import some 500,000m3 of stockpiled soil from C2C to the CR2SM Project.
ASBESTOS DUMPING AND REHABILITATION
For two sites located at Tanawha and Palmview we provided a rapid assessment of asbestos risk associated with encountered minor dumping of asbestos, both surficial and within backfill materials. We provided a review of legislative requirements including cross-over between environmental and work health and safety and provided a way forward that utilised site resources and minimised time and cost delays.
During asbestos abatement we provided a Class A Licensed Asbestos Assessor and Suitably Qualified Person for contaminated land matters to assist, document works, provide air fibre monitoring support and a final clearance inspection/validation report.
For a third Site located on Pignata Road, Palmview, we assessed a significant asbestos and hydrocarbon risk within soils associated with a former rural residence and trailer fabrication business. We provided a combination of occupational hygiene and environmental support to offer the most efficient strategy to deal with the issues whilst maintaining the construction program. This project at Pignata Road was our first introduction to the CR2SM project, where based upon our performance we were invited to replace the incumbent environmental consultant and were fortunate to be chosen to continue with servicing all other contaminated land and related occupational hygiene issues for the project.
REMEDIATION WORKS – HOTSPOT
A contaminated land assessment of the former RoadTek Site at the start of Steve Irwin Way was required to assess residual risks from an asphalt batching plant, septic systems, infilling a lake and general historical use. We identified impact from former asphalting works and were able to minimise the volume of soil requiring specialist disposal to Brisbane and maximise on-site bioremediation, all within the context of minimising disruption to the construction program.
INVESTIGATIONS & APPROVALS GENERALLY
The project has complex land tenure, ranging from road reserve with no formal lot description to freehold sites, some of which were converted to road reserve mid-project or retained as a formal lot.
For a broad range of environmental issues, we were required to review how legislative requirements could be met when some triggers relied on a formal lot description, in addition to stringent project-specific controls and other approvals required by CR2SM stakeholders and the requirements of Transport and Main Roads.