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1 6 <br /> 5.0 EXCAVATION AND SOIL SAMPLING BENEATH FUEL DISPENSERS <br /> ' FREY prepared a workplan for limited soil excavation based on the laboratory results for soil <br /> samples D5,D8 and D9. The workplan was dated November 13,2003 and was verbally approved <br /> by the Margaret Lagorio of the San Joaquin County Department of Environmental Health on <br /> November 14, 2003. <br /> 5.1 Soil Sample Collection <br /> On November 14, 2003, FREY returned to the Site to excavate soils in the area of previously <br /> collected soil samples D5, D8 and D9. Harlan Knoll of the San Joaquin County Department of <br /> ' Environmental Health witnessed the soil sampling on November 14, 2003. FREY observed a <br /> significant amount of product piping had been installed as well as forms for future fuel dispensers <br /> which prohibited the excavation of a large volume of soils. <br /> ' A backhoe was used to excavate a limited amount of soil from the vicinity of previously collected <br /> soil samples D5, D8 and D9. An area approximately 6 feet(north to south)by 8 feet(east to west) <br /> and 7 feet deep was excavated in the location of previously collected soil sample D5. Soil sample <br /> D5-2 was collected from the bottom of the excavation with assistance of a backhoe. <br /> ' An area approximately 6 feet(north to south)by 3 feet(east to west)and 7 feet deep was excavated <br /> in the area of previously collected soil sample D8. Soil sample D8-2 was collected from a depth of <br /> approximately 7 feet bgs from the bottom of the excavation with assistance of a backhoe. <br /> An area approximately 6 feet(north to south)by 3 feet(east to west)and 5 feet deep was excavated <br /> in the area of previously collected soil sample D9. Soil sample D9-2 was collected from a depth of <br /> approximately 5.5 feet bgs from the bottom of the excavation with assistance of a backhoe. <br /> Soil samples D5-2,D8-2 and D9-2 were collected by inserting a brass tube directly into the center <br /> of the backhoe bucket. Excavated soils consisted of yellowish brown,damp,hard, silty clay. Each <br /> sample was labeled with the project number, sample number, depth, time and date of sample <br /> ' collection. After sample collection, the brass tubes were capped with teflon tape and an air tight <br /> plastic cap,placed in plastic bags, and stored in an ice chest cooled with ice. The soil samples and <br /> the associated chain of custody were transported to the laboratory at the conclusion of soil sampling <br /> 1 activities. <br /> 5.2 Laboratory Analyses <br /> ' Soil samples D5-2,D8-2 and D9-2 were analyzed for TPH-g and TPH-d in general accordance with <br /> EPA Method 8015M. In addition, the soil samples D5-2, D8-2 and D9-2 were also analyzed for <br /> ' BTEX and fuel oxygenates in general accordance with EPA Method 8260B. <br /> ' FREY <br />