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' Maintenance Shop Ditch. Three pits were excavated in the <br /> t maintenance shop ditch. (P5, P6, P7) . Sample location P7 is situated <br /> south of an underground diesel tank. Three discrete samples were <br /> collected from each pit, at intervals of approximately 0 to 1, 1 to <br /> YY1 <br /> 2, and 2 to 3 feet below the ground surface. Sampling methodology <br /> XVt� was identical to those described for the truck parking area. <br /> ' In addition, a surface soil sample was collected where the <br /> ' maintenance shop ditch discharges into an employee parking lot <br /> (P19) . The sample was collected from a depth of 0-6 inches using a <br /> ' clean trowel and then placed into a pre-cleaned glass jar. <br /> Miscellaneous Sampling. Two background surface soil samples were <br /> ' collected, one on-site (BG-1) and one off-site (BG-2) . Both samples <br /> locations were in areas assumed to be uncontaminated. Each sample <br /> ' was collected from a depth of 0-6 inches using a clean trowel and <br /> then placed into a pre-cleaned glass jar. <br /> CHEMICAL ANALYSIS PROGRAM <br /> Chemical analyses were performed by California Analytical <br /> ' Laboratories, Inc. (CAL Lab) of West Sacramento, California. As <br /> requested by DOHS, 10% of the samples served as quality assurance <br /> ' checks. These samples were sent to Radian Corporation of <br /> Sacramento, California for analysis. Analysis of the samples were <br /> ' in accordance with EPA methods and quality control procedures. <br /> Analytical test methods are shown in Table 3. <br /> 1 <br /> 1 <br /> ' - 3 - <br /> 2611F <br />