Wilsonville Limestone Quarry

The project involved collecting nearly 50 earth resistivity profiles across 15,000 m² in two stages. The careful analysis of the data led to the creation of a comprehensive hazard map, with the first stage followed by verification drilling to confirm the findings.

The hard limestone rock required pre-drilling to deploy survey equipment effectively. In partnership with Geocivil, over 800 small holes were drilled to measure resistivity profiles to depths of up to 20 meters, ensuring optimal data quality for the high-risk investigation.

The survey revealed several large, near-surface structures filled with saline mud rather than minable rock, significantly impacting the planned quarry development. Drilling confirmed the accuracy of the geophysical data, ensuring the safety of the quarry team and the success of the project.