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I ' 20 January 2005 • AGE-NC Project No 04-1045 ' Page 5 of 7 ' to 6 8 x 10'cm/sec, which is consistent with soil behavior associated with silty clay to clay, The soil sample collected from MW3 at 10 feet bsg (MW3-l0) is a brown clayey sand with a porosity of 42 8%, an average permeability of 2 0X 10 6 cm/sec and a specific gravity of ' 2 71 cm/sec, the hydraulic conductivity ranged from 1 9X10-6 cm/sec to 2 5x 10-6 cm/sec, which is consistent with soil behavior associated with sandy silt to clayey silts (Robertson ' and others, 1990), • The soil sample collected from MW3 at 30 feet bsg (MW3-30) is a brown clayey sand with a porosity of 38 9%, an average permeability of 8 0x 10 5 cm/sec and a specific gravity of ' 2 74 cm/sec, the hydraulic conductivity ranged from 10 x 10 a cm/sec to 8 7x 10"5 cm/sec, which is consistent with soil behavior associated with sand to silty sand ' A line of cross section is illustrated on Figure 2, and a stratigraphic cross section is depicted in Figure 3 CTL laboratory reports are included in Appendix E ' Hydrocarbon-like odors were detected in soil samples collected from between 10 and 30 feet bsg in boring MW 1 and between 10 feet and 35 feet bsg in boring MW2 In addition, organic vapor was ' • detected by the OVM in soil samples collected from all three borings at concentrations as high as 7,992 parts per million (ppm) in sample MWI-10 Organic vapor field measurements are included on the boring logs in Appendix B 32 ANALYTICAL RESULTS OF SOIL SAMPLES I A total of 9 soil were samples analyzed for TPH- , BTEX and five fuel additives - p Yz g TPH-g was detected only in soil samples collected from boring MWI,at a maximum concentration of 2,400 milligrams per kilogram (mg/kg) in sample MWI-20 BTEX compounds were detected only in soil samples collected from boring MWI, at maximum concentrations of 0 19 mg/kg benzene,73 mg/kg toluene,260 mg/kg ethylbenzene and 1,690 mg/kg Ixylenes in sample MWI-20 Total lead was detected by EPA Method 6010 in soil samples collected from bonngs MW 1 through MW3, at a maximum concentration of 12 mg/kg (MWI-30) No additional analytes were detected at or above laboratory reporting limits in the samples analyzed Analytical results of soil samples are summarized in Table 1 The laboratory reports(CTEL Project No CT214-0411163),quality assurance/quality control(QA/QC)reports and chain of custody forms are included in Appendix F A plane view map showing the lateral extent of adsorbed petroleum I � Advanced GeoEnvironmental,Inc