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First Nattonwicie$aiEc West Lane Plaza <br /> J <br /> I' <br /> the maximum depth explored'of approximately 11.5 <br /> feet. Ground water was not encountered. <br /> During drilling, soil samples collected at 2.3 Soil QuaW <br /> approximately 5-foot depth intervals were <br /> monitored for volatile hydrocarbons with an organic <br /> vapor meter (OvM). As shown on the boring logs <br /> presented in Appendix A, ovm readings ranged <br /> from 1 to 4 parts per million (ppm). These levels } <br /> are.typical of natural background concentrations, in <br /> our opinion. In addition, no petroleum odors or <br /> soil discoloration were noted during drilling. 1 <br /> The soil sample collected from exploratory boring <br /> EB-2 at a depth of. approximately 11 feet was <br /> analyzed for TPH as gasoline with an additional scan <br /> for BTEx (EPA Test Method 8015/8020), TPx as diesel <br /> (EPA Test Method 8015 modified), total petroleum <br /> oil (Standard Method 5520EE), and halogenated vocs <br /> iE <br /> (EPA Test Method 8010). This sample was chosen <br /> r <br /> for analysis since exploratory boring EB-2 was <br /> { <br /> located closest to the tank. Tl e laboratory analyses <br /> did not detect petroleum hydrocarbons or vocs in <br /> the soil sample. Copies of the analytical reports are <br /> attached in Appendix B. <br /> 3.0 CONCLUSIONS AND RECOMMENDATIONS <br /> The purpose of this investigation was to evaluate soil <br /> quality near the underground waste oil storage tank <br /> at the site. <br /> During drilling, no petroleum odors, soil <br /> I' I <br /> discoloration, or elevated ovM'readings were noted. <br /> In addition, no petroleum hydrocarbons or vocs <br /> LO"EVASSOCIATES Page 3 <br /> Environmental/Geolechnicol/Engineering Services <br /> s <br />