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15 April 2002 <br /> AGE-NC Project No 98-0492 <br /> Page 5 of 6 <br /> Analytical results of soil samples are summarized on Table 2 The laboratory reports(MAI Lab I D <br /> No 89325 through 89329), quality assurance and quality control (QA/QC) report and chain-of- <br /> custody forms are included in Appendix E <br /> 1 <br /> 34 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> No analytes were detected at or above laboratory reporting limits in the ground water samples <br /> 1 The analytical results of ground water samples are summarized on Table 3 The laboratory reports <br /> (MAI Lab I D No 90163 through 90165), QA/QC report and chain-of-custody form are included in <br /> Appendix F <br /> 1 <br /> 4.0. SUMMARY AND CONCLUSIONS <br /> Based on the data collected from the site, AGE concludes <br /> ,• • Ground water flow at the site on 08 February 2002,was inferred to be toward the northwest <br /> at a gradient of 0 0007 feet/feet <br /> • Generally,brown to tan,damp to saturated,poorly graded sand,poorly graded sand with silt <br /> and silty sand was encountered from surface grade to approximately 20 feet bsg and at 30 <br /> feet bsg Orange to gray, damp clay was encountered from 20 feet bsg to 25 feet bsg <br /> • No analytes were detected at or above laboratory reporting limits in any of the soil or ground <br /> water samples analyzed The approximate extent of impacted soil, as determined from the <br /> AGE-prepared PIER dated 19 March 2001, is depicted on Figures 4 and 5 <br /> ' 5.0. RECOMMENDATIONS <br /> ' Based on the findings of the environmental activities recounted in this report, AGE recommends <br /> • Initiation of quarterly monitoring of the ground water monitoring wells on-site The next <br /> 1 monitoring event should be performed in May 2002 <br /> • No further action be taken at the site if analytes are not detected during the next three <br /> consecutive monitoring events <br /> Advanced GeoEnironmental,Inc <br />