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West & Hansen Engineers, Inc. <br /> PO Box 5891, Vacaville CA 95696 <br /> ro ect Stockton AASF Aircraft Wash ad System Job No 6788-15 <br /> Location: Clarifier I Date: October 10, 91 <br /> Boring Designation C-3 Driller West & Hansen Engineers, Inc <br /> Logged by BWW Base Vacaville <br /> Boring Location West of Third Chamber 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 13, 91 Finished Sept 13 Completion Depth 10 feet <br /> Number of Sam les Three Depth to Groundwater- Unknown <br /> Depth �' 5 -' <br /> p � H� Lithology Observations Field Well <br /> (feet) A r- 1 1 Analysis Construction <br /> 9-! <br /> 0 C-3- Dart Field <br /> Dry salty loam I I <br /> 2Slight odor, dis-coloration Contam I I <br /> MH Cohesive, medium grained I I <br /> I I <br /> 5 5 I I <br /> Dry, medium grained f I <br /> Less cohesive, no odor Clean ! I <br /> MH <br /> Salty loam i <br /> I I <br /> 10 !9 I I <br /> EO I 1 <br /> I I <br /> k I <br /> I I <br /> 15 I I <br /> I I <br /> I I <br /> k I <br /> i I <br /> I I <br /> 20 I I <br /> I <br /> I I <br /> I I <br /> l I <br /> 25 ! I <br /> i I <br /> 1 I <br /> I i <br /> I I <br /> 30 I <br /> E I <br /> ! I <br /> 1 { <br /> I I <br /> I 1 <br /> 35 I I <br /> I I <br /> I I <br /> I I <br /> i I <br /> 40 LJ <br />