Large Residential Property Development

Large Residential Property Development

LocationGreater Sydney Area, New South Wales

A large residential development involved the redevelopment of rural land adjacent and a large municipal landfill in the Greater Sydney Area, New South Wales. As part of the development requirements a Landfill Gas (LFG) Risk Assessment (RA) was to be undertaken to assess the potential risks to the proposed dwellings, as well as assess potential groundwater impacts.   

The LFG assessment involved a combination of spot and continuous gas monitoring on bores installed along the perimeter of the site. The data was used to undertake the LFGRA coupled with a Conceptual Site Model (CSM). This information was then in turn used to design a gas mitigation system to ensure the long-term protection of the residential dwelling adjacent the closed landfill.

The main disciplines undertaken included the following:  

  • Continuous and spot gas monitoring
  • Drilling works and monitoring well installation
  • Development of a Conceptual Site Model (CSM)
  • Landfill Gas (LFG) Risk Assessment
  • Design of a LFG mitigation system