Rapids Landing residential development
RPS’ environmental consultants have provided land management solutions and supervision for the Rapids Landing residential estate development in Western Australia’s Margaret River.
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Challenge
Development of the Rapids Landing residential estate began in 2008 with parts of the site likely to contain naturally forming acid sulfate soils. Oxidated acid sulfate soils can be harmful to the environment if incorrectly managed and can be caused in development stages, including earthworks, dewatering and drainage.
To mitigate the risk of oxidation, our team of environmental scientists provided ongoing environmental construction supervision during the site development, and an acid sulfate soils and dewatering management plan.
Solution
Before construction could begin, our team of environmental experts prepared an acid sulfate soils and dewatering management plan. This plan, in line with the guidelines developed by the Department of Water and Environment Regulation (DWER), identifies and manages the potential risks associated with construction.
The Rapids Landing development was planned to be developed over several stages, but with our wealth of industry experience, RPS produced one cohesive management plan to be used for all stages of construction, creating significant project efficiencies. As the project moved into construction, our team continued to support the development of the residential estate, providing acid sulfate soil and groundwater treatment supervision for civil works, including bore installation, baseline monitoring, construction supervision, and a sampling regime for groundwater, dewatering effluent, soils and sediments.
Our environmental specialists also prepared water management plans to keep the impacts to local hydrology to a minimum. These plans included:
- Urban water management plans
- Water sensitive urban design features and drainage concepts
- Hydrological and hydraulic models including estimation of the 100-year annual exceedance probability peak flood levels.
Core to the development of Rapids Landing was a modern environment designed to ensure sustainability values and preservation of its natural environment. To champion this in the design, our team also provided:
- A vegetation assessment, investigating the presence of any significant fauna, flora, habitat and communities
- An erosion management plan to prevent adverse impacts from sedimentation of eroded material within nearby waterways and protect the creek rehabilitation works
- Review of the approved foreshore management plan and fire management plan, including an on-ground assessment of vegetation.
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