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26 July 1999 <br /> i AGE-NC Project No 97-0301 <br /> Page 5 of 9 <br /> ■ <br /> 4.0. FINDINGS <br /> Soil descriptions were utilized to construct the cross section presented in Figure 3 Laboratory <br /> analysis of fourteen soil samples detected total petroleum hydrocarbons in three samples, volatile <br /> aromatics were detected in four soil samples,fuel oxygenated compounds were not detected in any <br /> soil samples Laboratory analysis of four grab ground water samples detected total petroleum <br /> hydrocarbons,volatile aromatics and fuel oxygenated compounds in three ground water samples <br /> 41 SOIL PROFILE <br /> Generally, brown, damp to moist, fine sandy silt was encountered from 5 feet bsg to depths of <br /> ' approximately 10 feet bsg Between 10 feet bsg and 20 feet bsg, a brown, damp to moist, silty fine <br /> sand was encountered A brown, damp to moist, fine sandy silt was encountered from 20 feet bsg <br /> to depths of approximately 30 feet bsg Between 30 feet bsg and 40 feet bsg, a brown, moist to <br /> ' saturated, silty fine sand was encountered At depths in excess of 40 feet bsg, a brown, moist to <br /> saturated, silty fine sand/fine sandy silt was encountered <br /> �. Saturated soil was first encountered at a depth of 40 feet bsg in boring P-1, ground water levels were <br /> measured at 37%2 feet bsg utilizing a Geoprobe water level meter Boring logs are included in <br /> Appendix A, general lithology beneath the site in cross sectional view is depicted on Figures 3 <br /> 4 2 FIELD EVIDENCE OF HYDROCARBON-IMPACTED SOIL AND GROUND WATER <br /> Faint to intense hydrocarbon odor was noted in duplicate soil samples collected from P-1 at depths <br /> between 20 feet bsg and 50 feet bsg and between 25 feet bsg and 35 feet bsg from borings P-4 <br /> Petroleum hydrocarbon odor is noted on boring logs contained in Appendix A <br /> 1 Organic vapor was detected in soil sample duplicates from P-1, P-2 and P-4 using a PID at <br /> concentrations as high as 582 parts per million (ppm) Organic vapor field measurements are <br /> summarized on the boring logs contained in Appendix A <br /> Intense petroleum hydrocarbon odor was noted in grab ground water samples collected from <br /> probings P-1 and P-4 <br /> ' 43 ANALYTICAL RESULTS OF SOIL SAMPLES <br /> • A total of fourteen soil samples were submitted to a DHS-certified laboratory (McCampbell <br /> Advanced GeoEnAironmental,Inc <br /> I <br />