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I N <br /> Advanced BORING LOG <br /> GeoEnvironmental, Inc. BOREHOLE NO MW-7 <br /> 7 ^\ 4005 North Wilson Way, Stockton, CA 95205 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 25' <br /> Project Guardino and Crawford Drilling Co Mitchell Drilling Environmental <br /> Site Location 517 West Fremont Street Rig/Auger Type CME-7514T <br />' Stockton, California Logged By Daniel Kalmbach <br /> Reviewed By Calvin Lee <br /> Project No AGE-NC-95-0167 <br /> Date(s) Drilled 20 September 2004 <br /> Notes sz Water level during drilling Page 1 of 1 <br />' = Water level in completed well <br /> =Depthle Blows PID Soil USCS Class and Well Well <br /> 1 ft (ppm) Symbol Soil Description Completion Description <br /> 0 <br /> Neat cement from l'to <br /> — 6'bsg <br /> _ SILT Brown,SILT with plastic fines,dry,low <br /> MW7-5 3/13/20 1 = consistency,no hydrocarbon(HQ odor <br /> Bentonite chip seal from <br /> 6'to 8'bsg <br /> ' SILT Brown,SILT with plastic fines,moist, <br /> T 10 MW7-10 9114117 0 — moderate consistency,no HC odor <br /> SILT WITH CLAY Brown to tan,SILT WrfH #3 Lonestar sand filter <br /> –1 — CLAY,moist,low plasticity,low toughness, pack from 8'to 25'bsg <br /> MW7-15 12/15/21 0 -1 moderate consistency,no HC odor <br /> — _ SILTY SAND Brown to gray,SILTY SAND with <br /> ' MW7 20 518/14 0 _ some plastic fines,saturated,moderate consistency, <br /> slight HC odor <br /> ' SAND PEBBLES Cray brown,SAND WITH <br /> –25— PEBBLES,fine-to course-grained,grain size Cap at 25'bsg <br /> O <br /> MW7-25 15/21/25 0 increases with depth,sub-rounded cobbles to <br /> ' approximately 112",no HC odor <br /> –30 <br /> i <br />