January 3, 2022

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Geosyntec Projects Recognized with Three Awards from Australasian Land and Groundwater Association

Two Geosyntec projects have been recognized with Industry Excellence Awards from the Australasian Land and Groundwater Association (ALGA). The Kendall Bay Sediment Remediation Project received awards for Best Remediation Project (>$1M) and Innovation that Advanced the Practice of Contaminated Site Remediation; and the Former Wollongong Gasworks Remediation Project received the award for Best Regional Remedial Project.

Once home to the largest gas works in the southern hemisphere, Kendall Bay in Sydney, Australia is now surrounded by a residential neighborhood. The ultimate goal of the Kendall Bay Sediment Remediation Project was the effective clean-up of the impacted sediments at the bottom of the bay. The project used innovative methods to ensure minimal disruption to nearby communities and residences and focused on engaging openly with residents throughout the project. The project is also noteworthy in that it featured the first use of in situ stabilization/solidification (ISS) of subaqueous sediments in Australia. Full-scale remediation was completed in October 2020, and the project received regulatory acceptance shortly after the completion of ISS and capping works.

Geosyntec's scope of work for the Former Wollongong Gasworks Remediation Project included early strategy planning with the remediation contractor and developing a tailored remediation approach. Once awarded, Geosyntec also provided technical advice and multiple lines of evidence analysis to demonstrate that the post-remediation residual subgrade soil would not pose a vapor intrusion risk to future residential and commercial users. In December 2020, Geosyntec received approval of the New South Wales Environment Protection Authority-Accredited Site Auditor for the tailored remediation and validation approach. Remediation activities were successfully completed in Q3 2021, and Geosyntec authored a post-remediation vapor intrusion management plan to guide the future development activities.

ALGA was formed to provide a forum and identity for the Australasian contaminated land and groundwater industry and to support the many professionals working in the field. The core focus of this association is to support advances in the prevention, assessment and remediation of contaminated land and groundwater. ALGA's broad base of members includes landowners, property developers, industry, consultants, scientist, contractors, regulatory agency staff, government, the legal profession, laboratory staff, researchers, and academics.

More Information

Geosyntec's involvement: Kendall Bay Sediment Remediation Project
About the Australasian Land and Groundwater Association: https://landandgroundwater.com/
For more information on the Kendall Bay Sedimentation Remediation Project or the Former Wollongong Gasworks Remediation Project, contact Dogus Meric at This email address is being protected from spambots. You need JavaScript enabled to view it., Kylie Lloyd at This email address is being protected from spambots. You need JavaScript enabled to view it., or Phil Hutson at This email address is being protected from spambots. You need JavaScript enabled to view it.