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it <br /> CHRONOLOGY � <br /> NE'STLEXARNA` ION <br /> 4343 FREMONT AVE <br /> STOCKTON CA 95215 <br /> SITE CODE: 2095 <br /> The site is currently a warehouse and parking area owned by Smart and Final (Shawnut Bank <br /> National Association Trust). The San Joaquin APN for the site is 143-280-39. In November <br /> 1985, prior to tank removal an assessment was conducted which evidenced soil contamination. <br /> One underground storage tank was removed and soil samples collected on June 25, 1986. In <br /> 1994 additional soil and groundwater investigation was initiated. The extent of possible <br /> groundwater contamination was investigated with the installation and sampling of one monitoring <br /> well. Groundwater contamination was not confirmed. San Joaquin County Public Health <br /> Services, Environmental Health Division (PHS/EHD) concurs with the recommendation that the <br /> site be certified for closure. <br /> 1985 <br /> 11-26-85 Eight soil borings were drilled and sampled. Twelve soil samples from S135 - S138 <br /> were submitted for laboratory analysis. Attached are copies of the boring logs. <br /> Sample ID/Depth Lead Semi/non volatile Hydrocarbon Unknown <br /> Fuel Hydrocarbons organics <br /> as oil <br /> B5@ 12-13.5' <20 ppm <br /> B5@ 17-18.5' 10.0 ppm <20 ppm <br /> B5@ 22-23.5 <20 ppm <br /> B6@ 12-13.5' <20 ppm <br /> B6@ 17-18.5' 10.0 ppm <20 ppm <br /> B6@ 22-23.5' <20 ppm <br /> B7@ 10-11.5' 1,000 ppm 50,000 ppb <100 ppb <br /> B7@ 15-16.5' 8.6 ppm <20 ppm <20 ppb 500 ppb <br /> B7@ 20-21.5' <20 ppm <br /> B8@ 10-11.5' <20 ppm <br /> B8@ 15-16.5' 10.3 ppm <20 ppm <br /> B8@ 20-21.5' <20 ppm <br />