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• lb <br /> LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 435-22.01 BORING NO. E-12 <br /> BY EG DATE 5/30/84 SURFACE EL EV. 87.05 <br /> casingCLASSiFICATIDN DATA FIELD DATA <br /> Pltsti• Compass, Penatra• .S n <br /> %Finot Liquid ci tive tion c DESCRIPTION <br /> i•No.aC@] Lirnit Index Stangth iBlows/ m 3-j <br /> (TSFI Ft.) tj <br /> Asphalt 6-inches <br /> (CL)Dark brown c lightly sandy <br /> silty CLAY - moist <br /> 5 <br /> (becomes light brown) <br /> 10 <br /> 35 15 <br /> (thin sandy interbeds damp) <br /> 23 20 d <br /> (SC)Light brown slightly clayey <br /> silty Sh'D - damp <br /> I <br /> 25 (CL)Dark brown slightly sandy <br /> p <br /> slightly-.Silty CLAY - damp <br /> •. (SC}Light brown slightly clayey <br /> silty SAND - wet <br /> 30 (CL)Light brown slightly sandy <br /> silty CLAY - damp <br /> BOTTOM OF BORING <br /> 35 <br /> 40 <br /> REMARKS: Hole collapsed to 23 feet depth. Boring was converted to a <br /> ground-water monitoring well by the installation of 23 feet of 3-inch PVC <br /> casing. The lower 17 feet of casing was slotted and the annular space <br /> was backfilled with well pack sand -from 23 feet to 5 feet. A bentonite- <br /> concrete seal was placed from 5 feet to 0 feet: f11sOn <br />