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�y <br /> i <br /> 3 RESULTS <br /> Analytical <br /> Both water samples and the six soil samples were delivered to Western Environmental Science <br /> and Technology (WEST) in Davis, California at the end of the sampling day WEST is certified <br /> by the State of California Department of Toxic Substances Control (DTSC) for the requested <br /> analyses. Both of the water samples were analyzed for TPHg and BTEX by EPA Method <br /> 5030/8015M. WEST composited the six soil samples into three samples for analysis The <br /> resultant samples were analyzed for TPHg and BTEX, and TPH diesel and motor oil. <br /> None of the three analyzed stockpile samples contained any of the requested analytes. WEST <br /> reported that both of the water samples contained TPHg and BTEX above the reporting limits <br /> The analytical results are summarized on Table 2. A copy of the laboratory's report is contained <br /> in Appendix B. <br /> TABLE 2 <br /> Groundwater Analytical Results (ug/1) <br /> Location Date TPHg Benzene Toluene Ethylbenzene Xylenes <br /> MW-1 2/07/94 23,000 2,000 3,500 520 2,800 <br /> MW-2 2/07/94 4,100 670 560 25 310 <br /> LlW-3 NS <br /> Notes: <br /> NS. Not Sampled due to the presence of an immiscible layer <br /> Groundwater <br /> Using the depth to groundwater measurements collected on 7 February 1994 and the surveyed <br /> locations and elevations supplied by Tom O. Morrow, Inc., I calculated the groundwater <br /> gradient The depth to groundwater for MW-3 was corrected for the presence of an immiscible <br />' layer using a relative density of 0.8 and rounding to two significant figures. Based on these <br /> measurements, the gradient was 3 33 x 10' to the southwest on 7 February 1994 (Plate 3). <br /> 6 <br />