September Technical Seminar


September Technical Seminar for Members - Wednesday 25th September 2019

Topic:  Innovations in Contaminated Site Assessment and Management 

Venue: Golder Associates - Level 8, 40 Mount Street, North Sydney.

Time: 5.30 pm drinks and nibbles, 6.00 pm presentations begin.

Golder Contact: Shane Doyle - 0412-068218.


Treatment of PFAS impacted concrete: Preliminary treatment trial results - Danielle Toase, Arcadis

PFAS impacted concrete infrastructure can present a diffuse, secondary source of contamination to the environment. Removal, off-site disposal and replacement of PFAS impacted infrastructure is expensive and logistically challenging. Therefore, treatment methods that can reduce or prevent the release and migration of PFAS from impacted infrastructure may bepreferable. This presentation presents the results of a recent treatment trial where a proprietary concrete treatment product, Xypex X55, was applied in-situ at a PFAS-impacted washdownbay to prevent the release of PFAS from impacted infrastructure into the surrounding environment.

Evolving CSMs in Fractured Rock: A Case Study of What We Know (And What We Think We Know) - Jonathon Ho, AECOM

The presentation explores how the site CSM at a chlorinated site changed over time (with iterative investigations over several years) and compares the final CSM with validation data after completion of a large scale remediationprogram.

Derivation of Water Quality Guideline Value for Marine Discharge of Monoethylene Glycol - Ken Kiefer, ERM
A case study derivation of the fresh water ecotoxicology guideline value for monoethylene glycol was undertaken using the revised derivation method in the 2018 Australianand New Zealand Guidelines for Fresh and Marine Water Quality (ANZG, 2018 and Warne et al., 2018). This assessment highlights the value of having additional dataavailable to make a statistical derivation rather than a conservative assessment factor approach.

Using Open Source Technologies to Build Innovative Electronic Solutions for Remediation Systems - Pedro Balbachevsky, AECOM
The combination of open source technologies, accessible web-based communication and low cost electronic components (particularly microcontrollers, sensors and actuators) has recently caused an innovation explosion in the do-it-yourself (DIY) electronics world. This technology sharing and innovative experimental revolution is also changing the way we can conduct our assessments and improvement of contaminated sites. Many conventional investigation and remediation tasks rely on or could measurably benefit from the implementation of electronic sensors, control loops and remote communication.


Resource Recovery - Reducing Potential Financial Burden for Surplus Excavated Materials in New South Wales - Michael Dunbavan, Coffey

Sulfidic soils, even those with no acid generating potential, do not meet the definition of VENM or ENM. To avoid unsustainable landfill disposal, as well as the related EPA waste levy, the option of a site-specific Resource Recovery Order and Exemption may be available. The application process and a case study from the Sydney Metro area will be discussed.


Registration Details

Register by COB Friday 20th September 2019. Please register so that adequate catering and seating can be organised.

If you are registered but then unable to attend, please advise by email so we can cancel your registration. 

CPD Points: Members are reminded that attendance at our technical seminars counts towards CPD hours required by industry accreditation programs, as long as members register online and also confirm their attendance at the event. Please ensure you keep a record of your registration receipt for this purpose.

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