Site investigation describes the process of carrying out
investigations on land to determine whether there is contamination
present and to collect sufficient, suitable data for the
purpose of risk assessment. The investigation is normally
carried out in several stages. These stages range from a
desk study and simple visual inspection to full intrusive
investigation using trial pits and boreholes etc and the
sampling and analysis of materials.
Official guidance in the UK, such as 'CLR11 Model procedures
for the management of land contamination' published by
Defra and the Environment Agency, shows how site investigation
is used at various stages of the risk management process
to collect information about a site, relevant soil and groundwater
processes, and any contamination present.
A wide range of techniques and methods for gathering site
data are available within the UK. However, it is essential
that any site investigation is designed based upon the available
Conceptual Site Model and will produce sufficient quantity
and quality of data. Usually, this data is required to inform
further risk assessment.
Policy and regulatory information
Other country information