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Advanced BORING LOG <br />' GeoEnvironmentai, Inc. BOREHOLE NO B-1 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 75' <br />' Project NATIONAL FREIGHT Date(s) Drilled 14 and 15 February 2002 <br /> Project No AGE-NC-98-0497 Page 3 of 3 <br /> Depth Sample Blows PID Sod USCS Class and <br /> ID (per 6') (ppm) Symbol Sod Description <br />' CL SILTY CLAY,medium plasticity,medium toughness,some micas,medium <br /> yellowish brown,saturated,hard, 80%recovery <br />' - <br /> 65— 81-65 19/24/29 0 <br />' = ML CLAYEY SILT,low plasticity,low to medium toughness,moderate yellowish <br /> _ brown, saturated,hard,90%recovery <br />' 70— B1-70 13/25/33 0 SM Bottom 0 5 inch of shoe contained POORLY GRADED SAND with SILT, <br /> approximately 10%fines,saturated <br /> SP POORLY GRADED SAND, fine sand, approximately 5%fines,saturated,dense to <br />' very dense,35%recovery Driller reported heaving sands <br /> -75 BI-75 12/20/33 0 <br /> Driller reported heaving sands Soil sampler and hammer could not be extracted from <br />' boring due to heaving sand No sample collection <br /> -ea <br /> 1 <br /> i <br /> 1 <br />