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:,City of Stockton A68108.0IB <br /> 'July 18, 1997 <br /> Page 6 <br /> :5.0 RESULTS AND FINDINGS <br /> I :Results of the field investigation and laboratory testing are summarized in the following <br /> subsections. <br /> i <br />{ 5.1 Soil Profile: The soil profile beneath the site consisted of:strata of: brown, well <br /> 'graded sand withclay; yellow- <br /> brown, well graded sand; red-brown, non-plastic clay with silt; � <br /> and a brown, slightly plastic clay to a depth of 44 feet BSG, the greatest depth explored. <br /> Descriptions of the conditions encountered in the soil borings are presented in the logs of <br /> I soil borings (Appendix C). ' <br /> The foregoing is a general summary of the subsurface conditions encountered in the soil <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 /> t 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 2. <br /> NX <br /> TABLE 2 <br /> �,•+ ... <br /> .:::...: ........... <br /> .::.... .:.... .... ......... ...... ......:... ........ ..... <br /> y <br /> ...:.:::::::,:::::...................gumma <of::Fie1d:: creen�n .:< <br /> , . <br /> : :.:.::;.: <br /> n......:::: am Ie:.De ;;: : ::::PII)Realm .;:::::;< . :;Sam le: oca... ::.;:..::... <br /> : ::::::.. . P P ;:>.. g . .....:....P:<:r:.:...twn _ .Sample <br /> :::z""r;.. <br /> :: frBs >......;:. ':'>>:;;:.. . ...:... : ;:::. ..(FBs }.:.:.;:.:.. <br /> SP-1 8 4 SP-2 12 0.2 } <br /> w 12 4 16 0.4 ! <br /> 16 1035 20 0.4 <br /> 20 924 24s 1.2 <br /> 24 740 <br /> 28' 0.1 �. <br /> 28 142 32' <br /> 32 10 I <br /> 36 6 : <br /> 40 2 <br /> 44 9 <br /> SP-3 12 0.6 SPS 10 0.9 <br /> 16 0.1 14 0.6 <br /> 200 17 1.1 <br /> 24 0.1 21 0.9 1 <br /> 28 0 24t <br /> 0.4 <br /> 32 0 28 0.4 <br /> 31 0.4 <br /> FBSG = feet below site grade <br /> PID = photoionization detector <br /> PPM = parts per million <br /> I, <br />