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GROUND ZERO ANALYSIS LOG OF BORING CPT1 .� PROJECT JIAFBURG WAREHOUSE LOCATION .STOCKTON, CA PROJECT NO 253 DATE DRILLED 11/09/98 LOGGED BY SEAN GARVEY REVIEWED RY JOHN P LANE REG No 6759 ' DRILLING COMPANY VAI DRILLER VIRGIL BAKER METHOD CONE PENETROMETER BORE HOLE DIAMETER I1J DEPTH DRILLED 75 1 FT DEPTH TO WATER INITIAL _ 65 FT STATIC _ NA FT CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL ._ FT TO !Z SCREEN TYPE NA DIAMETER _ IN SLOT SIZE IN INTERVAL — FT TO FT FILTER PACK TYPE NAu INTERVAL FT TO — FT SURFACE SEAL TYPE GROUT WITH NEAT CEMENT INTERVAL FT TO FT COMMENTS SOIL BEHAVIOR TYPE BASED ON ELECTRONIC CPT DATA PAGE OF 2 WELL DEPTH PID SAMPLE ID USC SOIL BEHAVIOR TYPE DETAIL FT (PPM) BLOWCOIINT LOG ML/CL 0-0 5' SILTY SANG TO SANDY SILT (SM/ML) 05-1 3' CLAYEY SILT TO CLAY (AIL/CL) 2 VERY ' STIFF 1 3-3 B' VERY STIFF FINE GRAINED FINE GRAINED 4 ML/CL 3 8-5 2' CLAYEY SILT TO SILTY CLAY (ML/CL) ML 5 2-5 9' SANDY SILT TO CLAYEY SILT (ML) 6 ' B ML/CL 5 9-9 7' CLAYEY SILT TO SILTY CLAY (ML/CL) —10— CL 9 7-10 8' SILTY CLAY TO CLAY (CL) ' 12 ML/CL 10 8-123 CLAYEY SILT TO CLAY (ML/CL) 14 CL 12 3-17 4' SILTY CLAY TO CLAY (CL) 1fi 17 4-17 9 CLAYEY SILT TO SILTY CLAY (ML/CL) 18 —20- 17 9-26 2 SILTY CLAY TO CLAY (CL) 22 CL —24-- 26- -28— 28 VERY 26 2-30 7' VERY STIFF FINE GRAINED STIFF FINE GRAINED —30- - a IML 30 7-31 7' SANDY SILT TO CLAYEY SILT (ML) 32 CL 31 7-3413' CLAY TO CLAY (CL) 34 J ML/CL 34 8-35 6' CLAYEY SILT TO SILTY CLAY (ML/CL) 36 CL 35 6-37 2' SILTY CLAY TO CLAY (CL) 38 ML/CL 37 2-39 2' CLAYEY SILT TO SILTY CLAY (ML/CL) 40 FINE GRAIN 39 2-40' VERY STIFF FINE GRAINED