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City of Stockton A68101.02F <br /> July 24, 1997 Page 10 <br /> 5.0 RESULTS AND FINDINGS <br /> Results of the field investigation and laboratory testing are summarized in the following <br /> subsections. <br /> 5.1 Soil Profile: The soil profile beneath the site consists of a red-brown, plastic, clay <br /> to a depth of 16 feet BSG, the greatest depth explored. Descriptions of the conditions <br /> encountered in the soil borings are presented in the logs of soil borings (Appendix Q. <br /> The foregoing is a general summa of the subsurface conditions encountered in the it <br /> g g g summary so <br /> borings drilled for this investigation. Stratification lines on the soil boring logs represent <br /> approximate boundaries between soil types. Actual transitions between soil types may be <br /> gradual, and the interpretation of various soil types from soil cuttings is subjective. <br /> 5.2 Results of Field Screening: The results of the field screening with the PID are <br /> summarized in Table 6. <br /> TABLE 6 <br /> . .Surnriary of Field Sereening Results <br /> r� Sample Location . Sainplc Depth PIIY Reading .: Sample Location Sample Depih P1D Reading <br /> { G)... (Ppm) ... (FBSG) : (ppm) <br /> ' SB-1 10 0.9 SB-2 10 0 <br /> 16 0.5 16 0 <br /> SB-3 10 1.1 SB-4 10 16 <br /> 16 0.9 16 21 <br /> SB-5 10 0.9 SB-6 10 0.9 <br /> 16 593 I6 0.9 <br /> SB-7 10 0.7 <br /> 16 11 <br /> ' FBSG = feet below site grade <br /> PID = photoionization detector <br /> PPM = parts per million <br /> 5.3 Soil Sample Analytical Results: A summary of analytical results for soil samples <br /> collected in the soil probe locations during this investigation are presented in Table 7. <br /> ' Laboratory analysis reports and chain-of-custody documentation are presented in <br /> Appendix D. <br />