A series of monitoring wells were installed as part of a ground water investigation around<br>a salvage yard. Most of the wells encountered relatively dense silty clay deposits and<br>shale. A few wells hit voids related to a paleochannel system filled with high TDS<br>ground water. A mise a la masse survey was conducted to map the trend of the<br>paleochanneis by placing a current electrode inside a monitoring well completed in a<br>channel feature. The survey identified the area of highest hydraulic conductivity and the<br>trend of the major channel system. The survey also appears to have mapped individual<br>minor channel features. The survey results were used to predict the trend of the<br>paleochannel system to the east of the site. The predicted location of the paleochannels<br>was confirmed by a test drilling program.


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