Kleinfelder was commissioned to perform a groundwater quality monitoring program for the West Gate Tunnel Project (WGTP). The West Gate Tunnel is a toll road linking the West Gate Freeway at Yarraville with the Port of Melbourne and CityLink at Docklands via twin tunnels beneath Yarraville, incorporating a bridge and elevated road section.

Extensive and Complex Program

The team coordinated a five-year monitoring program across more than 80 groundwater wells located in diverse and complex settings, including construction zones, arterial and local roads, public parks, and private properties. In addition to managing wells screened in 12 distinct aquifers, each requiring tailored analytical schedules, the team also evaluated contaminant trends by assessing observed trends in contaminant concentrations and determining further warranted investigation.

Proactive and Innovative Methodology

• Streamlined fieldwork coordination via collaboration with the wider project team ensuring it was planned, executed efficiently, and caused minimal disruptions.
• Developed 12 customised groundwater analytical suites in partnership with National Association of Testing Authorities (NATA) accredited laboratories to simplify fieldwork processes.
• Developed a complex statistical analysis methodology to identify significant trends in contaminant concentrations, thus aiding determination of necessity for further assessment.

Project Results

Cost and time efficiencies were possible due to Kleinfelder’s proactive planning and the development of tailored groundwater analytical suites.

Kleinfelder’s complex statistical analysis methodology addressed project-specific needs, while also providing the client with robust, evidence-based insights into potential changes in groundwater contamination on this and future projects.

Project Details

Location:
Melbourne, Victoria

Owner:
Confidential Client