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Advanced BORING LOG <br /> GeoEnvironmentai Inc. <br /> 837 Straw Road, Stockton, CA 95215 BOREHOLE NO CB8 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 40 <br /> Project Chapin Brothers Investments Drilling Co Enviroprobe <br /> Site Location 1766 Monte Diablo Avenue Rig/Auger Type Geoprobe 5400 <br /> Stockton, California Logged By Little <br /> Reviewed By Little <br /> Project Na AGE-NC-95-103 Date(s) Drilled 21 November 2003 <br /> Notes Ground water encountered at 20 feet bsg = Water level during drilling Page 1 of 1 <br /> angle borings at 30 degrees depths corrected to vertical = Water level in completed well <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br /> ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> 0 — — <br /> — SM Light Brown,SILTY SAND(backfill),fine sand, <br /> 10%silt,moist,no hydrocarbon(HC)odor <br /> CB8 5 <br /> 0 __ - ML Light Brown,SILT,low plasticity,low toughness, <br /> -5 <br /> moist,no hydrocarbon(HC)odor <br /> 4 ==_-= ML Light Brown,SILT,low plasticity,low toughness, <br /> C138-10 moist,no hydrocarbon(HC)odor <br /> -10 <br /> CBS-12 <br /> ML Gray to brown,SILT low plasticity,low <br /> toughness,moist,slight hydrocarbon(HC)odor <br /> C138-16 0 - <br />