Westport is collecting data about the soil and groundwater to inform detailed design and planning for the new port facilities in Kwinana.
Detailed site investigations
To inform the next stage of detailed design planning for Westport, we are undertaking site investigations to determine the level of potential contamination in the soil and groundwater within the proposed port footprint. The investigations are commencing in January 2026 and are expected to take four months to complete.
Site investigations involve drilling boreholes to extract soil and groundwater samples to be tested for contamination in a laboratory.
These investigations will help us understand the type, concentration and extent of any contaminants in the area for safe and informed development.
Frequently asked questions
An investigation of the contamination risk in soil and groundwater at a project site. These investigations are typical on all major infrastructure projects and provide information to assess potential or actual contamination.
A direct push drill rig, sonic drill rig, and a small five-tonne excavator.
Environmental approval is not required to undertake detailed site investigations.
There will be no impact to marine life as these investigations are on land within the existing Kwinana Industrial Area only.
There may be some noise and minor vibration from excavation equipment, but it is limited and temporary. All operations follow environmental guidelines to control impacts. Noise levels are not expected to be higher than ambient noise from the Kwinana Industrial Area.
The sites where the investigations are completed will be returned to their original conditions.
There is no risk to the public, however there will be a 5m buffer zone around the equipment.
Where appropriate, we’ll share summary findings through project updates, newsletters and stakeholder briefings – especially if they influence design or timing.
For more information, please contact us via enquiries@westport.wa.gov.au.