Borehole

A borehole may be constructed for many different purposes, including:

• extraction of water or fluid (e.g., oil) or gases (e.g., natural gas or methane)
• for a geotechnical investigation
• for an environmental site assessment
• for mineral exploration
• as a pilot hole for installing piers or underground utilities This data contains a continuous log of strata for each borehole as well as for geocolumns. A geocolumn is a collection of information from an examination of exposed substrate, such as in a quarry wall or along a roadway passage.