The television camera has become a tool of the ground‐water geologist, enabling him to examine visually the inside of a well deep below the land surface. Using the camera, the rocks can be viewed in place. Of great importance to the ground‐water studies in coastal Georgia, the camera enables the geologist to see the important water‐bearing zones in a limestone aquifer, and to recognize cracks and solution cavities, the changes in geologic formations, and the irregularities in the well bore that indicate the relative hardness of the rocks. The engineer, well driller, and water developer can examine a well when “trouble shooting” to see whether the casing is broken, whether screens are eroded, or whether the well contains obstructions.
|Title||Television — A new tool for the ground‐water geologist|
|Authors||J.T. Callahan, R. L. Wait, M.J. McCollum|
|Publication Subtype||Journal Article|
|Record Source||USGS Publications Warehouse|