Brownfield Sites

Brownfield sites are ripe for redevelopment. However many contain a variety of hidden hazards that can pose significant risks for developers and costly delays to the project.

Geophysical techniques can provide a useful tool in the investigation of brownfield sites by reducing the risks, with rapid site reconnaissance surveys being utilised to characterise subsurface features prior to any intrusive investigation. With rapid data collection rates (up to 2 hectares per day) compiled with specialist data processing techniques, preliminary results can usually be offered at the end of a survey, providing an invaluable tool in the geo-environmental engineer’s armoury.

Brownfield Techniques

• Electrical Resistivity
• Magnetic Gradiometry
• Ground Penetrating Radar
• Electromagnetic Mapping
• Seismic Refraction
• Seismic Surface Wave
• Microgravity
• SafeGround

Unknown underground storage tanks (USTs) are a common problem on former industrial sites and filling stations. EM and GPR (shown above) are two typical techniques we can deploy to locate such hidden features.