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Advanced BORING LOG <br /> z , <br /> GeoEnvironmental, Inc. <br /> =.-.., I BOREHOLE NO.: MW-1 <br /> �- �- 837 Shaw Road. Stockton, CA 95215 I <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 PID Soil USCS Class and Well Well <br /> ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> —45 ML:Dark-Brown with white specks,dry,SANDY <br /> MW 1 45 13/14/16 21 SILT;well-graded(<10%),slight plasticity,slight <br /> toughness,slight consistency,slight HC odor. <br /> Bentonite seal from 45'to <br /> 48' bsg. <br /> —50 ML.Dark-Brown with white specks,dry,SANDY <br /> MW 1.50 15/16120 0 SILT;well-graded(<10%),low plasticity,low <br /> toughness,slight consistency,slight HC odor. <br /> CL:Dark-Brown,dry,SILTY CLAY with SAND;well- <br /> -55 graded(<10%),slight plasticity,slight toughness,slight #3/12 sand from 48'to <br /> MW 1-55 13/17/17 0 consistency,slight HC odor. 70'bsg. <br /> Q <br /> —60 ML:Olive-Brown/Gray with Orange specks,dry, <br /> 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 /> MW 1-65 11/14/18 0 SILTY CLAY;slight plasticity,slight toughness,slight <br /> consistency,NO HC odor. <br /> —70 I <br /> SM:Gray with white specks,damp,SILTY SAND with Cap at 70'. <br /> - MW I-70 11/11/13 0 GRAVEL(<1/8");well-graded,NO HC odor. <br />