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fro <br /> Advanced BORING LOG <br /> GeoEnvlironmental, Inc. <br /> BOREHOLE NO.. MWI <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX: (209)467-1118 -TOTAL DEPTH: 20 Feet <br /> Project: Enterprise Investments Drilling Co.-: Mitchell Drilling Environmental <br /> Site Location: (Former JB Murphy Truclarlg) Rig/Auger Type: CME 75HT -8"Hollow Stem Auger <br /> 355 Enterprise Place Logged By: Brian W. Millman <br /> Tracy, California <br /> Reviewed By: Calvin Lee <br /> Project No.: AGE-NC-97-0360 <br /> Date(s) Drilled: 31 January 2002 <br /> Notes: 4 Water level during drilling Page 1 of 1 <br /> M: 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 Well cover cristy box <br /> Portland Cement from <br /> 1'to 2'bsg. <br /> Bentonite seal from 2' <br /> I to 4' bsg. <br /> -5 MWl-5 719112 0 <br /> CL:Brown,damp,CLAY;medium plasticity and #3 sand from 4'to 20' <br /> 1 toughness,no hydrocarbon(HC)odor,100%recovery. bsg. <br /> -10 MW 1-10 8/14/15 75 Screened interval from <br /> CL:Gray,damp to slightly moist,CLAY;medium <br /> plasticity and toughness,HC odor,100%recovery. 5'to 20'bsg. <br /> - i <br /> I 8"Boring diameter <br /> Q� 2"Casing diameter <br /> -15 MW1-15 7117/27 121 <br /> CL:Gray,damp to slightly moist,CLAY;medium <br /> —. — plasticity and toughness,HC odor,66%recovery, 020 slot size <br /> SM:dark brown,saturated,SILTY SAND;fine sand, <br /> <25%fines,HC odor,33%recovery. <br /> -20-- MWI-20 16/21/30 67 Cap at 20'. <br /> SM:Dark brown,saturated,SILTY SAND;fine sand, <br /> 3 <25"/o fines,HC odor,50%recovery. <br /> 1 � <br /> i <br /> -25 <br /> : i <br /> _J <br />