Assessment Of Geological And Hydrological Features In A Basaltic Environment Using Borehole Geophysical Techniques

A comprehensive borehole geophysical logging program was conducted in four newly drilled monitoring well boreholes<br>and one existing water-supply well located in the hydrageologically complex basaltic volcanics underlying Schofield<br>Army Barracks, Oahu, Hawaii. The purpose of this logging program was to cost effectively evaluate the complex geologic<br>and hydrologic conditions in this basaltic environment and the associated aquifer thereby minimizing the need for drilling<br>additional expensive monitoring wells. This logging program was successful in effectively characterizing the geologic and<br>hydrologic characteristics of the site including vadose zone moisture content.