Perspectives On Optimising Remedial Strategies For Contaminated Sites

Remedial strategies often evolve over time. Particularly at complex sites, remedial performance may not meet expectations and alternative technologies may be tried, with similar results. Millions of dollars and decades can be spent implementing and adjusting the remedial program. Stakeholders may lack consensus on a path to site closure. Taking a step back to re-assess conceptual site model (CSM) limitations and data gaps and identify where and why contaminants persist longer than expected can lead to insights for optimising the remedial approach and improving performance. This presentation will describe various tools and approaches used to interrogate areas with persistent contamination, how to capitalise on and communicate the extent of natural attenuation to stakeholders, and concepts for beginning a dialogue and developing a path to closure. Case studies will illustrate potential benefits of revisiting the CSM and remedy basis, as well as the process for developing a remedial strategy that provides a path to site closure, depending on the regulatory framework, stakeholder input, applicability of risk-based closure strategies, acceptable remedial timeframes, and impact on receptors

This presentation will be held as a live webinar. A unique access link will be sent to registrants on the morning of the event.

If you are unable to attend on the day, the session will be recorded and available to view later.

About the Presenters

Dr. Julie Konzuk,

Senior Principal,

Geosyntec Consultants Pty Ltd

Dr. Julie Konzuk is a Senior Principal and has been with Geosyntec Consultants for 20 years.  She is a civil engineer who specialises in the design and implementation of remedial programs to mitigate risk on contaminated lands, particularly on complex sites with challenging conditions such as NAPL sources, fractured bedrock, UXOs, and complex chemistries.  She has consulted on a number of sites in Australia, the United States and Canada.  Beyond remediation program strategy development and oversight, Dr. Konzuk also has significant experience with litigation support and expert testimony on remedial costing and future cost liability estimation, application of various forensics and diagnostic tools for source composition/delineation and contaminant attenuation/migration behaviour, cost allocations and cost-benefit assessments, and third-party review and independent advice.  She is actively involved with growing innovation within Geosyntec and has incorporated applied research into her practice as well.