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INTERNATIONAL TECHNOLOGY CORPORATION <br /> 4.0 RESUL TS <br /> 4. 1 SITE GEOLOGY/HYDROGEOLOGY <br /> As shown in the boring logs (Appendix A), the site area is underlain by a layers of lean clay <br /> and sand with varying amounts of sand and fines, respectively Groundwater occurs <br /> approximately 45 feet below grade in a sand. <br /> Groundwater flows to the northeast with a gradient of 0 011 ft/ft (Figure 3) <br /> 4.2 ANALYTICAL RESULTS <br /> In the soil samples analyzed, as shown in Table 2, the samples collected at 40 feet and 20 <br /> feet in MW-1 and MW-3, respectively, contained BTEX constituents and TPH as gasoline <br />' (MW-3 only) TPH as diesel was not observed in any of the soil samples analyzed <br /> BTEX constituents were not observed in any of the groundwater samples The groundwater <br /> samples from MW-1 and MW-2 contained 130 ppb and 52 ppb TPH as diesel, respectively <br /> (Table 3) <br /> 10 <br />