Review of Environmental Factors - Camden Valley Way Upgrade and Liz Kernohan Drive Extension (Final) - Flipbook - Page 58
6.14.14
Recommendation 4:
Post construction affected areas are to be restored to a condition equivalent to that which existed
prior to the commencement of the work.
6.15 SOILS AND GEOLOGY
6.15.1 Existing Environment
The project area is described as being flat. The physiography of the soils is described as plain under
woodland shrub understorey on alluvium lithology with soil types of Stratic Rudosol (ASC) and
Alluvial (GSG). The site of the proposed works is not identified as containing potential acid sulfate
soils.
Groundwater is likely to be present given the surrounding watercourses. Limited sub-surface
excavation will be required below the existing surface levels to clearly establish its depth and
qualities. In the event that groundwater is encountered, a detailed geotechnical investigation will
be undertaken and if warranted a management plan developed.
6.15.2 Impact Assessment
It is not considered that the project, either during construction or once operational will not have an
adverse impact on the area’s soils or geology.
6.15.3 Mitigation Measures
The following mitigation measures are proposed for soil and geology.
6.15.4 Recommendation 1:
Pre-construction, a Soil Management Plan (SMP) is to be prepared in accordance with the relevant
standards and implemented as part of the CEMP to mitigate soil impacts. The SMP is to identify all
reasonably foreseeable risks relating to subsurface impacts and pollution associated with
undertaking the activity and describe how these risks will be managed and minimised during
construction. This will include arrangements for managing pollution risks associated with spillage or
soil contamination on the site and adjoining areas and monitoring during and post construction
period.
6.15.5 Recommendation 2:
During construction, appropriate environmental practices are to be adopted for washdowns and
refuelling having regard to potential impacts on groundwater in addition to the implementation of
general erosion, sediment and water quality control safeguards.
During construction, where groundwater is intercepted during construction works, it will be managed
to minimise potential adverse impacts in accordance with the RTA Technical Guideline:
Environmental Management of Construction Site Dewatering. These may include, but not necessarily
be limited to:
•
•
Options to collect and store groundwater to enable recharge of the water table (such as
via grassed swales); and
Where recharge is not appropriate or feasible, discharging groundwater to the surface
water drainage system following suitable treatment to ensure discharged water is of an
appropriate quality.
17/065 | Revised REF: Camden Valley Way Road Widening Works
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