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I � <br /> Advanced BORING LOG <br /> GeoEnvironmental Inc. <br /> BOREHOLE NO.: MW-1 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX: (209).467-1118 TOTAL:DEPTH: 70 feet <br /> Project: ARROYO SMOG Date(s) Drilled: 20 JULY 2005 <br /> Project No.: AGE-NC-04-1168 Page 2 of 2 <br /> Depth Sample Blows PIDSoil USCS'Class and WeA Well <br /> ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> I <br /> P pro, <br /> —45 -- ML:Dark-Brown with white specks,dry,SANDY <br /> MWI-45 13/14/16 21 SILT;well-graded(<10%),slight plasticity,slight <br /> toughness,slight consistency,slight HC odor. Bentonite seal from 45'to <br /> 48' bsg. <br /> —50 ML:Dark-Brown with white specks,dry,SANDY <br /> SILT;well-graded(<109/6),low plasticity,low <br /> MW 1-50 15/16/20 0 toughness,slight consistency,slight HC odor. <br /> CL:Dark-Brown,dry,SILTY CLAY with SAND;well- <br /> -5 graded(<10%),slight plasticity,slight toughness,slight 1{3/12 sand from 48'to <br /> NMI-55 13/17/17 0 consistency,slight HC odor. 70'bsg. <br /> Q <br /> —60 { ML:Olive-Brown/Gray with Orange specks,dry, <br /> r CLAYEY SILT;slight plasticity,slight toughness,slight Screened interval from <br /> MW 1-60 15/15/18 0 consistency,slight HC odor. 50'to 70'bsg. <br /> —65 CL:Olive-Brown with Gray streaks,slightly damp, <br /> SILTY CLAY;slight plasticity,slight toughness,slight <br /> MWI-65 11/14/18 0 consistency,NO HC odor. <br /> r } Cap at 701. <br /> —70 SM:Gray with white specks,damp,SILTY SAND with <br /> GRAVEL(<1/8");well-graded,NO HC odor: <br /> MW1-70 11/11/13_ 0 <br /> i <br /> j <br /> I <br />