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CRC Environmental Risk INIanagemenL Inc. <br /> 17875 Von Karman Avenue,Suite 200 LOG OF BORING B1 <br /> Irvine, California 92714 <br /> LOCATION: 150 West 10th Street. . CA <br /> PROJECT. ASB Tracy Branch <br /> PROJECT NO.: 2100-217-2 SURFACE ELEVATION: 50 feet above MSL <br /> DATE STARTED: April 24, 1995 INITIAL WATER LEVEL. 11.50 feet <br /> DATE FINISHED: Apr 2424 , 1995 FINAL WATER LEVEL: 13.25 feet <br /> DRILLING METHOD: Geoprobe System TOTAL DEPTH: 15 feet <br /> DRILLING COMPANY: WESTEX.Inc. GEOLOGIST: R.A. Almero <br /> W U_ <br /> PID (ppm) U <br /> a� MU w CLO GEOLOGIC DESCRIPTION REMARKS <br /> wo°' cc <br /> Q Z O J PROFILE J <br /> m > ,o ,00 , <br /> 2-3 inches of asphalt paving Drilling started at 10:30 <br /> _ AM Surface condition- <br /> CLAY (CL), grayish brown, plastic asphalt paved <br /> 131-2 8.2 clay, slightly moist No odor, no stain <br /> ' CLAY (CL), grayish brown, inorganic No odor, no stain <br /> 5 <br /> 131-5 10.3 clay with low plasticity, little silts in <br /> matrix, slightly moist <br /> 1 <br /> 10 B1-10 12.0 <br /> CS-1 CLAY (CL), brownish plastic clay with No odor, no stain <br /> little amount of silt in matrix: saturated <br /> at lower 11.5 feet; sample at 12 feet is <br /> clay-sand-gravel mixture (SC) <br /> 15— <br /> NOTE: <br /> — CS-1 control (duplicate) sample <br /> 20— Depth was extended to 15 feet <br /> for water sampling <br /> 25- <br /> 1 <br /> Page 1 of 1 <br />