Site investigation is carried out in order to determine the engineering properties of soil and rock and how they will interact with a planned development. The purpose of site investigation is to establish parameters for foundation, substructure and infrastructure design and to assess the potential geotechnical, geoenvironmental, geological and hydrological risk to humans, property and the environment.
The design and scope for each investigation will depend upon site-specific circumstances such as the anticipated geology, previous use of the site and the construction proposals. There are a variety of techniques and procedures that may be used, and each consultant may adopt a different approach for any particular project.