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Wc(;R <br /> Southwest, line. <br /> • <br /> kilogram (mg/kg), and in boring B5 at a concentration of 6.4 mg/kg. The results of laboratory <br /> analyses are shown in Table 1. The laboratory analytical report is included in Appendix B. <br /> 3.1 Summary <br /> • On October 3, 2007, eight soil borings were advanced at the subject site. <br /> • Soil samples were collected at 3 feet bgs in two borings, and at 6 feet bgs in the six other <br /> borings. <br /> • No VOCs, SVOCs, PCBs, nitrate, or ammonia as nitrogen were detected in any of the <br /> samples. TPH-d was detected in two samples, at a maximum concentration of 12 mg/kg. <br /> • One of the samples indicating detectable TPH-d, sample B4, was collected at the proposed <br /> location of the aboveground diesel tank Yara intends to have onsite. The other sample, B5, <br /> was collected in the central site area, at the proposed location of several conveyor belts. <br /> 3.2 Conclusion <br /> Baseline conditions for the proposed lease area are as follows: There is pre-existing minor diesel <br /> . impact to soil at the proposed location of the above ground diesel tank, and in the central area of the <br /> site. Nitrate and ammonia as nitrogen, which are typically associated with fertilizer products, were <br /> not detected. With the exception of TPH-d in two areas,the proposed lease area shows no impact to <br /> soil by semivolatile organics, volatile organics, petroleum hydrocarbons, nitrate, ammonia as <br /> nitrogen or polychlorinated biphenyls. <br /> Prepared by 5�0 Ge0, <br /> WGR Southwest,Inc. yCA SOMA c'N� <br /> ssj, oQ2 <br /> OFCP <br /> Caryl F. heehan <br /> California Professional Geologist No. 6620 <br /> • <br /> 773. PRI.02 Page 5 October 9, 2007 <br />