Talis has been working with Bunbury-Harvey Regional Council since 2014 to deliver integrated hydrogeological and geotechnical engineering solutions to the Stanley Road Waste Management Facility.
The facility, twenty kilometres to the north of Bunbury in Western Australia, commenced operations in 1991 and accepts Class II/III putrescible waste as an unlined facility. Underlying soil conditions were identified as being highly permeable, with two shallow aquifers known to exist beneath the facility. The Council initially engaged Talis to assess the potential impacts the facility may be having on the groundwater within the area.
Through Talis’s continuing relationship, the team was also engaged to undertake an engineering assessment of subsoils as part of the future expansion of the facility’s capacity, with the goal of ensuring continued operation of the facility as a necessary service to the broader community.
The successful delivery of this project resulted in Talis undertaking a wide range of investigations, including:
- Initial desktop hydrogeological risk assessment;
- Liaison with the Department of Water and Environment Regulation (DWER);
- An intrusive hydrogeological investigation including aquifer property testing;
- An intrusive geotechnical investigation concerning the expansion of the waste management facility;
- Seasonal groundwater monitoring;
- Hydrogeological modelling utilising LandSim;
- Hydrogeological risk assessment;
- Detailed geotechnical assessment of the engineering properties of the underlying soils;
- Slope Stability assessment; and
- Ongoing advisory services for both hydrogeological and engineering constraints to the facility.
Through the investigation undertaken, Talis was able to establish the potential risks associated with the operation of the facility to the surrounding environment and associated receptors, which allowed the team to provide the company management with key measures to ensure operations run smoothly into the future. The geotechnical assessment allowed the site’s feasibility for the proposed expansion to be suitably classified in keeping with the recommended framework for environmental management onsite.