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02 June 2000 <br /> AGE-NC Project No. 98-0466 <br /> Page 3 of 7 <br /> percent titanium dioxide, 11 % aluminum silicate (clay) and 22 % magnesium silicate (talc). The <br /> material was 61.47%by volume volatile,presumed to be water as organic volatile compounds were <br /> not listed as ingredients on the MSDS. The MSDS is included in Appendix A. <br /> The oil and grease, chlorinated hydrocarbons and metals are the potential contaminants of concern <br /> in the ditch soil. Metals detected at elevated concentrations in the former teepee burner and burn pits <br /> areas include arsenic, lead, copper and zinc. <br /> 2.2. LEACH FIELDS <br /> Kleinfelder's 15 June 1987 Work Plan -Phase Illnvestigation for the subject site proposed a boring <br /> to test soil for pentachlorophenot/tetrachlorophenol (PCP/TCP), total petroleum hydrocarbons <br /> (TPH), formaldehyde, lead, zinc and chromium in the septic tank leach field northeast of the Finger <br /> Joint Building. AGE infers that the leach field described is the leach field currently in use northeast <br /> of the warehouse,which is also northeast of the Finger Joint building(approximately 550 feet away), <br /> but much closer to the former(approximately 50 feet away). <br /> A second septic leach field lies west of the Millwork building, approximately 1,400 north of the <br /> septic leach field described above. This leach field does not appear to be referred to in the <br /> Kleinfelder documents. According to Mr. Glen Gallup, potential contaminants in the Millworks <br /> leach field would include formaldehyde, lead, zinc and chromium. <br /> 3.0. SCOPE OF WORK <br /> To assess the areas of potential concern,AGE proposes to: <br /> • Advance one soil boring to 35 feet bsg in each of the leach field areas and near the west ditch <br /> to collect soil and ground water samples; <br /> • Advance an additional boring in each leach field to 20 feet bsg to collect soil samples; <br /> • Advance three hand auger borings to 5 feet bsg in the western ditch to collect soil samples; <br /> • Procure laboratory analysis of the ground water samples and selected soil samples; and <br /> • Prepare a report of finding. <br /> Advanced GcoEnvironmental, Inc. <br />