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West & Hansen Engineers , Inc. <br /> PO Box 5891, Vacaville CA 95696 <br /> ro evt Stockton AASF Aircraft Wash ad System Job Na. 678$-15 <br /> ovation• Wash ad Date October 10. 91 <br /> Boring Designation. 3-1 Driller West & Hansen Engineers, Inc <br /> Logged by BWW Base Vacaville <br /> Boring Location East Quadrant (See Figure 5) Drill Equipment Hand Auger <br /> Soils Classification System USCS Diameter & Type Well Casing <br /> Sample type: BRASS TUBE - SPLIT SPOON NA <br /> Soil Matrix yES Elevation & Datum NA <br /> Date Started Sept 9, 1991 Finished Sept 9 Completion Depth 10 feet <br /> Number of Samples Three Depth to Groundwater Unknown <br /> P Cd I~ zLithology Observations Field Well <br /> (feet) qF• Analysts Construction <br /> 9-9 <br /> 1000 <br /> 0 3- Concrete Washpad <br /> Basecourse <br /> 1 CL Medium Brown I I <br /> Medium grained, dry Clean I I <br /> I I <br /> 5 Silty clay, cohesive I ! <br /> Hardpan - Dense I 1 <br /> 2 I 1 <br /> SMClean <br /> Dry, sandy silt E I <br /> Uncohesive ! I <br /> 10 3 ! f <br /> EO I I <br /> I I <br /> I I <br /> I S <br /> 15 I f <br /> I I <br /> ! I <br /> f I <br /> I I <br /> 20 I I <br /> I f <br /> I I <br /> I I <br /> I f <br /> I I <br /> 25 I ! <br /> I ! <br /> I f <br /> I I <br /> I I <br /> 30 I <br /> 1 I <br /> 1 I <br /> I I <br /> I I <br /> 35 I I <br /> [ I <br /> ! I <br /> 1 I <br /> 1 I <br /> I I <br /> 40 LJ <br />