Cable percussion boreholes are a common method of site investigation. Using a towed rig or a specialist cut-down rig suited to restricted access locations, most sites can be investigated. In-situ testing techniques, including standard penetration testing (SPT), permeability testing, borehole vane testing and packer testing can all be carried out in the boreholes to allow our engineers to provide information for geotechnical design. We retrieve disturbed and undisturbed samples from the boreholes for inspection and logging by engineers and subsequent testing in our laboratories. Instrumentation can be installed in the boreholes. For more details, refer to our data sheets.