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Advanced BORING LOG <br /> I a y <br /> GeoEnvironmental Inc. <br /> BOREHOLE NO MW-12B <br /> 4005 North Wilson Way, Stockton, CA 95205 <br /> (209)467-1006 FAX (209) 467-1118 TOTAL DEPTH 45 FEET <br /> IProject WEST CLAY PROPERTIES Drilling Co Mitchell Drilling Environmental <br /> Site Location 639 West Clay Street Rig/Auger Type CME 75 HT <br /> Stockton, California Logged By Paul Dotson <br /> Reviewed By Nuel Henderson <br /> IProject No AGE-NC-96-0235 Date(s) Drilled 25 July 2000 <br /> Notes Total depth of boring 45'below surface grade Boring sz Water level during drilling Page 1 of 1 <br /> Icompleted as 2-inch diameter ground water monitoring well w Water level in completed well <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br /> ID (per 6"} (ppm) Symbol Soil Description Completion Description <br /> 0 MM U Well cover cnsty box <br /> No sample recovery from Y to 15'bsg <br /> -5 <br /> I -�a <br /> ICL SILTY CLAY,approximately 5%sand,trace dark <br /> -i s colored organics,brown,damp,very stiff,no petroleum <br /> MW 12B-15 $11211$ - hydrocarbon(HC)odor <br /> CL SILTY CLAY,approximately 5%sand,trace dark <br /> 20— colored organics,brown,damp,very stiff,no HC odor <br /> M W 12B-20 11/14/17 Cement grout seal from <br /> Yin 36'bsg <br /> CL SILTY CLAY,approximately 10%sand,brown, <br /> - <br /> 25— moist,very stiff,no HC odor <br /> MW1213-25 7112/16 <br /> I SP-SM POORLY GRADED SAND,rine sand, <br /> _30— approximately 10%fines,gray,saturated,medium <br /> MW 1213-30 12/16/18 dense to dense,HC odor <br /> CL CLAY,blue-gray,saturated,HC odor,very stiff <br /> -35— MW 12B-35 10/13/19 MAI <br /> Bentonite seal from 36 <br /> • 1J. to 3$' bsg <br /> CL SILTY CLAY,blue-gray,saturated,FIC odor,very <br /> stiff to hard #3112 sand from 38'to <br /> 40— MW1213-40 7119129 45'bsg <br /> Screened interval from <br /> 40'to 45'bsg <br /> CL SILTY CLAY gray,saturated very stiff to hard <br /> _45— MW 128-45 14/16/25 Cap at 45' <br />