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1. <br /> TABLE 2 <br /> ANALYTICAL RESULTS OF EXCAVATION SOIL SAMPLES <br /> Country Mart <br /> 24342 South Chrisman Road, Tracy, California <br /> February 6, 1995 <br /> (mg/kg) <br /> Sample TPH as Ethyl- <br /> ID Gasoline Benzene Toluene benzene Xylenes <br /> D-1 ISTD ND ND ND ND <br /> D-2 ND ND ND ND ND <br /> NB-1 240 0.12 3.0 1.5 21 <br /> ni&-g = parts per nulljon,ppm;ND = Not Detectcd at or alwnc ntwu11g 11111115 <br /> 5.0 CONCLUSIONS & RECOMMENDATIONS <br /> 5.1 Hydrocarbon Impacted Soil <br /> Soil samples collected from the excavation indicate that impacted soil remains in the area <br /> of the former USTs at depths in excess of 31 feet. Although no samples were collected <br /> from the sidewalls of the excavation, it is likely that impacted soil extends to the northwest, <br /> north and northeast. <br /> No petroleum hydrocarbons were detected in the area of the former dispenser islands. It <br /> is likely that hydrocarbons detected in these areas during the UST removal were limited <br /> to the immediate vicinities of the sample locations. Laboratory results of the soil samples <br /> collected at depths of 8.5 and 9 feet indicate that all impacted soil near the dispenser islands <br /> was successfully removed. <br /> It is assumed that the PHS/EHD will require additional investigation in the area of the <br /> former USTs. We recommend the preparation of a work plan to further investigate the <br /> former UST area. After the investigation, a Preliminary Investigation and Evaluation <br /> Report (PIER) should be prepared. y <br /> 5.2 Stockpiled Soil <br /> The stockpiled soil at the site has not been characterized. We recommend the collection <br /> of soil samples from the stockpile. After the stockpile has been characterized, remediation <br /> or disposal alternatives can be considered. <br /> Geabgiral Audit Services,Inc. <br /> SC-95-01.107602COUNTRY APART/_r14 <br />