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Appendix A <br /> AGE-NC Project No 01-0827 <br />' Page 2 of 4 <br /> Various BTEX compounds were detected in soil samples collected from boring P1 at depths from <br /> 5 feet to 20 feet bsg, the highest concentrations were 0 05 mg/kg benzene (P1-10), 0 085 mg/kg <br /> toluene (PI-5), 0 065 mg/kg ethylbenzene (PI-10) and 0 18 mg/kg xylenes (P 1-10) Samples <br />' collected at or below 25 feet in P1 and the remaining borings did not have detections of <br /> hydrocarbons Total lead was detected in soil samples P 1-10 and P 1-15 at concentrations of 6 9 <br /> mg/kg and 15 mg/kg, respectively <br /> ANALYTICAL RESULTS OF GRAB GROUND WATER <br /> ITPH-d, TPH-o and BTEX compounds were not detected in the grab ground water samples <br /> Analytical results from ground water samples are summarized in Table B <br /> I <br /> SOIL EXCAVATION <br /> Procedures for soil excavation,soil sampling/analysis and soil disposal are outlined below The work <br /> was preformed in accordance with Interim Soil Remediation Work Plan,dated 20 August 2002 and <br /> approved by the EHD by letter dated 03 September 2002 <br /> The scope of work included additional soil excavation, soil sample collection and analysis, and <br /> disposal of impacted soil The objective is to excavate the remaining hydrocarbon-impacted soil from <br /> beneath the former burn area to facilitate an overall mass reduction of contaminants <br /> On I I September 2002, hydrocarbon-impacted soil was removed with an excavator outfitted with <br /> a2 45-cubic-yard bucket Soil was excavated from beneath the former burn area and fuel dispensing <br /> unit near soil probe bonngs P1, P2 and P3, stockpiled on-site around the excavation(Figure 2) and <br /> field screened for the presence of volatile organic compounds using an organic vapor meter(OVM) <br /> The dimensions of the excavation were 18-foot (east and west side) by 16-foot (north and south <br /> sides) by 26-foot bsg (vertical depth), approximately 275 yards of soil were excavated The open <br /> excavation area was surrounded by caution fencing No AGE or subcontractor personnel was <br /> allowed into the excavation until appropriately sloped Ground water was encountered within the <br /> excavation at a depth of 25 feet bsg after a duration of 48 hours <br />' EXCAVATION BACKFILLING AND SOIL DISPOSAL <br />' After completion of all excavation and sampling activities, the excavation was backfilled and <br /> compacted to the top of the water table with approximately 40 cubic yards of 314-inch gravel, and <br /> Advanced GeoEnvironmental,Inc <br />