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Advanced BORING LOG <br /> GeoEnvironmental, Inc. BOREHOLE NO.: MW2 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX: (_209)467-1118. TOTAL DEPTH: 70 feet <br /> LProject: ARROYO SMOG Date(s) Drilled: 21 JULY 2005 <br /> Project No.: AGE-NC-04-1168 Page 2 of 2 <br /> p <br /> Depth <br /> Sample Blows PID Soil USCS Class and Well Well <br /> ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> POFF <br /> ra <br /> — M <br /> 45 L:Olive-Brown,dry,CLAYEY SILT with SAND; <br /> MW2-45 30/31/31 12 well-graded(<101/o),slight plasticity,slight toughness, <br /> slight consistency,slight HC odor. <br /> Bentonite seal from 45'to <br /> 48'. bsg.- <br /> —50 ML:Olive-Brown,dry,SANDY SILT;well-graded(10- <br /> MW2-50 28/30/30 1.7 25%),slight plasticity,slight toughness,slight <br /> rconsistency,slight HC odor, <br /> —5 5 ML:Olive-Brown,damp,SANDY SILT;well-graded <br /> (10-25%),slight plasticity,slight toughness,slight #3/12 sand.from 48'to <br /> MW2-55 32/34/30 12 consistency,-slight HC odor. 70'bsg. <br /> a ;0 ML:Olive-Brown/Gray,damp,SANDY SILT with <br /> CLAY;well-graded(<10%),medium plasticity,medium Screened interval from <br /> MW2-60 21/23/19 0 toughness,slight consistency,slight HC odor. 50'to 70'bsg. <br /> ire i <br /> —65 MH:Olive-Brown with G r <br /> ay streaks,saturated,SANDY <br /> MW2-65 20/22/19 0 SILT;well-graded(10-25%) no HC odor. <br /> _ <br /> 70 SM:Green-Gray,saturated,SILTY SAND;well-graded Cap at 70'. <br /> MW2-70 19/22/18 0 (10-250/6),NO HC odor. <br /> L ^ <br /> it <br /> �r <br /> irr <br /> ,• is <br />