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90C0030All CON-18 <br /> 3.0 <br /> RECOMMENDATIONS FOR FURTHER INVESTIGATION <br /> 3.1 SOIL SAMPLING PROGRAM <br /> A plan for investigating the potential impacts of facility operations <br /> on underlying soils is described below. Shallow soil samples will be <br /> collected from areas of suspected site contamination for laboratory <br /> analysis of fertilizer, pesticide, or waste oil constituents. Analysis <br /> parameters for each sample will be selected based on the most likely source <br /> or sources of the soil discoloration. <br /> In some areas, samples will be collected as composite samples. Analy- <br /> sis of the composited soil samples will provide an integrated measure of <br /> average soil concentrations. The high degree of heterogeneity in soils, <br /> together with the potential for very localized spills, can create differ- <br /> ences in concentrations over very short distances. Such variability can <br /> result in misinterpretation of the analytical results from a single soil <br /> sample. <br /> 3.2 SOIL SAMPLING LOCATIONS <br /> Soil samples will be collected from 18 locations at the site. The <br /> locations are described in Table 3-1 and shown on Figure 2. <br /> Discrete soil samples will be collected at depths of 1 foot and 6 feet <br /> from the waste oil storage area near the equipment repair and maintenance <br /> shop (Location S1). The samples will be analyzed for waste oil constitu- <br /> ents. <br /> 3-1 <br />