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Advanced BORING LOG =6 - GeoEnvironmental, Inc. BOREHOLE NO.MW-1 -A Js 837 Shaw Road, Stockton, CA 95215 (209)467-1006 FAX: (209)467-1118 TOTAL DEPTH: 70 feet Project: ARROYO SMOG Drilling Co.: Cascade Drilling Site Location: 3012 EAST WATERLOO ROAD Rig/Auger Type: CME 95/8-inch hollow stem augers STOCKTON. CALIFORNIA Logged By: Arthur Deicke Reviewed By: Calvin Lee Project No,: AGE-NC-04-1168 Date(s) Drilled: 20 JULY 2005 Notes: sz Water level during drilling Page 1 of 2 x Water level in completed well DepthSample Blow PID soil USCS Class and Well Well ID (per 6" ppm Symbol Soil Description Completion Description ) 0- -5- ML:Orange-Brown to Dark-Brown,dry,CLAYEY SILT;slight plasticity,low toughness,low to moderate - MW 1-5 14/16124 0 consistency,no hydrocarbon(I-IC)odor. —10 N4L:Orange-Brown,dry,CLAYEY SILT;low MWI-10 12/12/16 0 plasticity,low toughness,low consistency,no HC odor. -15 ML:Orange-Brown to Dark-Brown.dry,CLAYEY SILT:moderate plasticity,moderate toughness. NIWI-15 11/15/15 0 moderate consistency,no HC odor. -20 CL:Orange-Brown,dry,SILTY CLAY;moderate plasticity,low toughness,low to moderate consistency, MW 1-20 14/14/11 0 no HC odor. L I 0 as I0 i Ce odor. 1 —25 CL:Orange-Brown,dry,SILTY CLAY,moderate a plass Ji . ticity,low toughness,low to moderate consistency, Cement grout seal from MW 1-25 12/13/17 0 no HC odor. .51 to 45'bsg. -30 CL:Orange-Brown,dry,SILTY CLAY;moderate plasticity, plasticity,low toughness,low to moderate consistency, MWI-30 14115/17 8 slight HC odor. -35 ML:Orange-Brown,dry,SANDY SILT;well-graded (<10%),slight plasticity,slight toughness,slight MWI-35 13/17/17 25 consistency,slight HC odor. -40 ML:Orange-Brown,dry,SANDY SILT;well-graded (<10%),slight plasticity,slight toughness,slight MW 1-40 12/12/16 7 consistency,slight HC odor. N-401