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iI <br /> i <br /> �! f <br /> } <br /> Page 7 � TL 686-082-02 ; <br /> I <br /> Constituent } Test Methods <br /> Total Volatile Organic SW7846: ,Methods 5020, 8015 <br /> Hydrocarbons '1 <br /> � <br /> Oil and Grease Me Ithod 503D, "Standard <br /> Methods for Analysis of <br /> Water and Wastewater" . <br /> I� <br /> i ' <br /> 5. 0 RESULTS AND FINDINGS <br /> The results of the field and laboratory investigations are <br /> Lsummarized in the following sections . <br /> 5 . 1 Soil Profile: The soil pro�file at the project site <br /> k <br /> generally consists of sandy And clayey silts to a depth of 25 E <br /> feet (the maximum depth explored) . 'Boring B-1 was drilled at the <br /> former site of the-::. underground storage tank and was drilled <br /> through backfill material consisting of' silty sands to a depth of s <br /> approximately 15 feet. The fill mate�ial was underlain by the <br /> Lnative sand and clayey silts . Based nlithe rate of drilling, the <br /> ji <br /> soils were generally stiff to very stiff . Visual observations <br /> indicated that the natural moisture content remained at moist E <br /> i <br /> conditions to the depths explored. <br /> The foregoing is a general su.[ary of the subsurface <br /> I� M <br /> conditions encountered in the borings drilled for this <br /> �i <br /> investigation. Detailed descriptions o;f the soils encountered in <br /> the borings are presented on the logs off borings in Appendix A of , <br /> it <br /> this report. The stratification lines �shown on the logs <br /> ', as <br /> { �; Fresno Modesto Visalia Bakersfield <br />