Experts in Groundwater Remediation

On a number of sites DP have been working to reduce contaminant loads from petroleum hydrocarbon plumes in groundwater. This particular plume is associated with leakage from petroleum storage tanks which had been in the ground for nearly 40 years.  When the tanks were finally removed a few years ago, large holes were visible in […]

Gosford’s ATO Building Opening Soon

​The Australian Tax Office (ATO) building, which is currently under construction in Gosford, is nearing completion. Located adjacent to the picturesque waterfront, this is one of the first major buildings to be completed as part of the revitalisation of the Gosford CBD which includes other significant projects, most notably the redevelopment of the Gosford Hospital. […]

Hummingbird House: Building a Children’s Hospice

Australian architects have a lot to boast about when it comes to healthcare design, with practices like Woods Bagot and Lyons pushing the boundaries of how hospitals should look, feel and work in recent years. Children’s hospices, on the other hand, are a far rarer subject in the architecture discourse, especially when it seems only […]

DP Approach Saves Time and Money

We are privileged to not only assist our clients with solving their ground engineering problems but we also get to see some special parts of the world. One example was a small project along the foreshore of Port Stephens in NSW where our client (Royal Haskoning DHV) was looking to prepare conceptual designs for the […]

Land contamination poses threat to residential development

When a residential developer contacted us with a potentially serious environmental hazard, our team of leading experts got straight to work. Here’s how our comprehensive analysis, problem-solving and negotiation skills ensured a land contamination issue resulted in approval to proceed. Investigation of the cattle dip commences. Mount Margaret estate is set within the lifestyle precinct […]

A Simplified Geology of the Perth Metropolitan Area

A Simplified Geology of the Perth Metropolitan Area

Explore our simplified geological landscape overview of the Perth Metropolitan Area. Understand the unique geological features that define Perth, including its soil composition and rock formations. Download the PDF here. Fred-Verheyde-2016-A-Simplified-Geology-of-the-Perth-Metropolitan-Area

Sustainable Remediation Design for a Clay Target Shooting Rang

Sustainable Remediation Design for a Clay Target Shooting Rang

Summary The detrimental effects of clay target shooting include the deposition of lead shot and polycyclic aromatic hydrocarbons. Remedial options available to individual sites are highly variable and depend on soil type, topography and the presence of vegetation. Using a former gun club situated on public land as an example, the principles of Sustainable Remediation […]

Advanced Site Characterisation with Passive Soil Gas

Passive Soil Gas - Polycyclic Aromatic Hydrocarbons (PAH)

Introduction A total of four existing USTs and sumps had been removed from a former industrial site in Southbank, inner Melbourne, however, some residual contamination in validation samples and moderate groundwater contamination indicated that not all sources had been removed. High levels of TPH C10-C36 and naphthalene were detected in both soil and groundwater and […]

Instrumented Preload at Kooragang Island

Instrumented Preload at Kooragang Island Coal Terminal

Abstract The “Stage 3 Expansion” of the Kooragang Coal Terminal was a major industrial project which boosted the coal exporting capacity of Newcastle, making the terminal the largest coal handling facility in the world. Port Waratah Coal Services appointed Bechtel Australia in July 1999 to design and construct the expansion, which was completed early 2002. […]

Geo-environmental Challenges of a Major Coal Terminal Development

Geo-environmental challenges of a major coal terminal development in Australia

This paper describes the integration of geotechnical, environmental and groundwater investigations for the Terminal 4 Project in Newcastle, Australia, aimed at identifying appropriate remediation measures to protect human health and environmental values. The site presented a series of complex challenges due to its geological setting, previous uses for waste disposal and adjacent environmentally sensitive areas. […]