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Advanced BORING LOG <br /> �-� <br /> Geo Environmental, Inc. BOREHOLE No.: MW2 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX: (209)467-1118 TOTAL.DEPTH: 70 feet <br /> Project: ARROYO SMOG Dates) Drilled: 21 JULY 2005 <br /> Project No.: AGE-NC-04-1168 Page 2of2 <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br /> ID (pert") (ppm) Symbol Soil Description Completion Description <br /> PA. r <br /> NIL:Olive-Brown,dry,CLAYEY SILT with SAND; <br /> —45 well-graded(<10%),slight plasticity,slight toughness, <br /> MNV2-45 30/31/31 12 slight consistency,slight HC odor. <br /> Bentonite seek from 45'to <br /> 48' bsg. <br /> _50 ML:Olive-Blown,dry,SANDY SILT;well-graded(10- <br /> 25%),slight plasticity,,slight toughness,slight <br /> MW2-50 28!30/30 1.7 consistency;slight HC odor. <br /> _5 5 M1.;Olive-Brown,damp,SANDY SILT;well-graded t#3/12 sand from 48'to <br /> (10-25%),slight plastic-ity,slight toughness,slight <br /> MW2-55 32/34/30 12 consistency,slight HC odor. 70'bsg. <br /> ML:Olive-Brown/Gray,damp,SANDY SILT with <br /> CLAY;well-graded(<10%),medium plasticity,medium Screened interval from- <br /> -60 <br /> MM2-60 21/23/19 0 toughness,slight consistency,slight HC odor. 50'to 70'bsg. <br /> —65 MH:Olive-Brown with Gray streaks,saturated,SANDY <br /> SILT;well-graded(10-259/6),no HC odor. ; <br /> MW2-65 2022/19 0 <br /> _7p <br /> SNI:Green-Gray,saturated,SILTY SAND;well-graded Cap at 70'. <br /> MW2-70 1922/18 0 (10-25%):NO HC odor. <br /> Yarm <br />