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1 <br /> 18 April 2000 <br /> '.r AGE-NC Project No 98-0534 <br />' Page 6 of 9 <br />' locations across the site Soil borings are depicted in Appendix B A stratigraphic cross section is <br /> depicted in Figure 3 , <br />' 42 HYDROCARBON-IMPACTED SOIL <br /> Thirteen soil samples from the June 1999 excavation on the site were analyzed for TPH-g, TPH-d, <br /> BTEX and MTBE A total of twenty-six soil samples collected from the November 1999 soil borings <br /> were analyzed for TPH-g, TPH-d, BTEX and MTBE A total of twenty-six soil samples were <br />' analyzed for the suite of five fuel additives by EPA Method 8260 Modified <br /> 4 2 1 FORMER DISPENSER AND PRODUCT LINE EXCAVATION <br /> The analytical data indicated the highest concentration of TPH-g was detected in the floor of the T I <br /> excavation <br /> TPH-g was detected in two of thirteen soil samples analyzed TPH-g was detected at <br /> concentrations of 1 4 mg/kg in soil sample T1-F2 (floor sample) and 3 1 mg/kg in soil <br /> sample DT-E (trench east) <br /> G TPH-d was detected in three soil samples at concentrations up to 140 mg/kg (DT-E) <br /> C BTEX compounds were detected in two of the thirteen soil samples analyzed from the <br /> excavation Soil sample T1-1 contained toluene at a concentration of 0 006 mg/kg and <br /> xylenes at a concentration of 0 03 mg/kg Soil sample T1-F2 contained xylenes at a <br /> concentration of 0 19 mg/kg <br /> E0 MTBE was detected in seven of the thirteen soil samples analyzed by EPA Method 8020, at <br /> concentrations up to 0 52 mg/kg (T 1-1) <br /> Laboratory results of soil samples collected during excavation and assessment and then analyzed for <br /> petroleum hydrocarbons are summarized in Tables 3 and 4 The laboratory reports (MAI Laboratory <br /> ID 12633 to 12645), quality assurance and quality control (QA/QC) reports and chain-of-custody <br /> form is included in Appendix C The location of the soil excavations are shown on Figure 2 <br /> 4 2 2 SOIL PROBE BORINGS <br /> TPH-g was detected in two of twenty-six soil samples analyzed TPH-g was detected at <br /> concentrations as great as 3 8 mg/kg in soil sample P9-15' <br /> Advanced Geo Environmental,Inc <br />