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Borehole Geophysical Logging Case Histories For Hazardous Waste Investigations
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 1st EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, Mar 1988, cp-214-00023
Abstract
Borehole geophysical logging programs were performed as part of<br>four different hazardous waste investigations, and the results<br>are presented here as case histories. The first case history is<br>for a monitoring project in poorly consolidated sediments. This<br>program demonstrates the advantages of a comprehensive logging<br>suite and the amount and value of information that can be<br>determined with this data. The second case history shows logs<br>obtained through hollow stem auger and the same logs recorded<br>through PVC casing after completion of the monitoring well.<br>Borehole environment and completion effects including limitations<br>are depicted. The third example illustrates logs, especially<br>electric logs, collected through PVC screen and shows completion<br>effects and types of information that could be obtained. The last case history concerns a monitoring well project in a<br>fractured crystalline rock environment in New England. This<br>program utilizes nonradioactive-source logs exclusively, and<br>demonstrates the value of logging bedrock wells in this<br>environment.