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Advanced BORING LOG <br /> : GeoEnvironmentai, Inc. BOREHOLE NO.: MW3 <br /> r' 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; 21 JULY 2005 <br /> Project No.: AGE-NC-04-1168 Page 2 of 2 <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br /> ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> =45 <br /> ML:Oratige-Brown with white specks,dry,SANDY <br /> SILT;(well-graded,]0-259/o),slight plasticity,slight <br /> MW3-45 26/30/30. 0. toughness,Iow consistency,no HC odor. <br /> Bentonite seal from 45'to <br /> 48' bsg <br /> -50 ML:Olive-Brown with white and gray chips;slightly r <br /> damp,CLAYEY SILTY with SAND;well-graded. <br /> MW3-50 24126/30 0 (<10%),slight plasticity,low toughness,slight y:. <br /> consistency,no HC odor. F <br /> —55 ZEML:Olive-Brown with red specks,slightly damp, #3/12 sand from 43'to <br /> SANDY SILT with CLAY;well-graded(<10°o),slightff. 70'bsg <br /> MW3-55 24/26/24 0 plasticity,slight toughness,slight consistency,no HC <br /> odor. � ;_._:•: <br /> -60 ML:Olive-Brown with gray specks,moist,SANDS Screened interval from <br /> SILT with CLAY;well-graded(<10%);slight plasticity, 50'to 70'bsg: <br /> \M-60 20/19/24 0 slight toughness,slight consistency,no HC odor. <br /> T with <br /> very <br /> t SANDY SILT. <br /> w <br /> —65 nII:TOP:Blue gray, ry moss <br /> CLAY;well-graded(<10%),slight plasticity,slight <br /> MM3-65 26/28128 0 lou litres,slight wnsisteacv,no HC odor. <br /> g <br /> BO7-I <br /> M•Blue-gray, <br /> saturated, <br /> SILTY CLAY;Iow <br /> plasticity,low toughness,low consistency,no HC odor. <br /> Cap at 70'. <br /> _70 CH:Blue-gray;saturated,SILTY CLAY;low plasticity, <br /> low toughness_,low consistency,no HC odor. <br /> MW3-70 26/24/24 0 <br /> 1 <br /> t <br />