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1 <br /> Advanced BORING LOG <br /> GeoEnvironmental, Inc. BOREHOLE NO MW-4 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 7$' <br /> Project NATIONAL FREIGHT Drilling Co Mitchell Drilling Environmental <br />' Site Location 2850 Loomis Road Rig/Auger Type CME 75 - 8 25" HSA <br /> Stockton, California Logged By Paul Dotson <br />' Reviewed By C Lee <br /> Project No AGE-NC-98-0497 Date(s) Drilled 14 February 2002 <br /> Notes Total depth of boring 78 feet bsg Boring sz Water level during drilling Page 1 of 3 <br /> completed as 2-tech diameter ground water monitoring well !w- Water level in completed well <br />' Depth Sample Blows PIU Sod USCS Class and Well Well <br /> ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> 0 Well cover cnsty box <br /> No samples collected from 0 to 18 feet bsg <br /> -5 <br /> 1 <br /> -15 <br /> 1 <br /> ML CLAYEY SILT,low plasticity,low toughness, <br /> micaceous,trace of fine sand,moderate brown,damp, <br /> hard, 100%recovery <br /> -20— MW4-20 12/50-6 0 <br />' CL SILTY CLAY,medium plasticity,medium Cement grout seai from <br /> toughness,trace of micas,moderate yellow brown, 0 5'to 51'hsg <br /> damp,hard,100%recovery <br />' - <br /> 25 MW4-25 14/23/35 0 <br />