Scope
The scope of consultancy work comprised two primary phases: a preliminary soil sampling assessment undertaken prior to demolition activities, followed by a detailed in-situ soil testing and waste classification investigation completed post-demolition. The preliminary assessment was designed to provide an initial understanding of subsurface conditions across the site and to identify potential contamination issues early in the project. This phase included a site inspection, review of historical aerial photography dating back to 1949 and intrusive investigations to assess for the presence of soil contamination caused by historical site activities.
Following demolition, Senversa was re-engaged to complete a detailed in-situ soil assessment to support waste soil classification for surplus material requiring off-site disposal during construction works. This phase involved excavation of 25 test pits across the approximately 3,000 m² development footprint to depths of up to 1 m below ground level. Soil samples were collected at surface and stratigraphic changes, with an extensive laboratory analytical program completed by a NATA-accredited laboratory.
Both phases of work were undertaken in accordance with relevant Australian and South Australian regulatory guidance, including the ASC NEPM (2013), EPA Victoria IWRG guidelines, and South Australian EPA waste classification criteria. Statistical assessment was also applied to support land use suitability and waste classification decisions. The scope also included data quality assessment, interpretation of results against human health, ecological and waste disposal criteria, and the provision of clear recommendations to facilitate compliant soil management during redevelopment.
