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I <br />' 12 August 2002 <br /> AGE-NC Project No 01-0827 <br />' Page 4 of 5 <br />' 33 ANALYTICAL RESULTS OF GRAB GROUND WATER <br /> TPH-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 2 The laboratory report <br /> (CalTech Lab ID 0207-040-1 to-3 and 0207-040-1 to-3), quality assurance and quality control <br /> (QA/QC) and chain-of-custody are included in Appendix B <br /> r <br /> 3 4 HYDROCARBONS IN SOIL <br /> Based on the analytical results from the soil samples, AGE calculated that an estimated 311 kg of <br /> diesel and 509 kg of fuel oil remain in the soil at the site The calculations to determine the <br /> hydrocarbon mass in the soil is presented in Appendix C <br /> 4.0. SUMMARY AND CONCLUSIONS <br /> • Based on the data collected from the site, AGE finds <br /> • Ground water was encountered in the borings at approximately 30 feet bsg Ground water <br /> samples were not impacted by hydrocarbons <br /> • The maximum hydrocarbon concentrations in soil was detected in the area of the former burn <br /> pit area,sample#2 south The vertical and lateral extent of the impacted soil were delineated <br /> by the soil samples analyzed The maximum concentrations of TPH and BTEX compounds <br /> were detected in samples collected above 20 feet bsg <br /> • Approximately 311 kg of diesel and 509 kg of fuel oil remain in the soil at the site, to an <br /> approximate depth of 22 5 feet bsg <br /> 5.0. RECOMMENDATIONS <br /> Based on the findings of the remediation activities recounted in this report, AGE recommends <br /> • Excavate soil in the area of bonngs BI to a depth of 25 feet and collected confirmation soil <br /> samples from the excavation <br /> • Disposal of all impacted soil at an appropriately licenced landfill <br /> I <br /> Advanced CeoEnvironmental,Inc <br /> I <br />