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t i <br /> o <br /> Re-excavation and sampling of the inspection pit to a depth of 6 feet conducted <br /> today. Analytical results indicate no further remediation required. <br /> Remote fill area re-sampled at a depth of 7 feet prior to receiving the analytical <br /> data obtained on 11/27/90. Today's results indicate no further remediation <br /> required.r <br /> 11/29/90 Former track pan area re-excavated to a depth of 6 feet. Analytical results of <br /> sampling;indicate no further remediation required. <br /> 11/30/90 The sand tower was excavated today. One sample in the fill at 6.5 feet results <br /> with TPH-d of 500 ppm. Another sample was obtained from a depth of 9.5 feet <br /> indicating no further remediation required. However there is contamination <br /> observed below a concrete slab which is not accessible for overexcavation and <br /> does not pose a threat to the environment and is left in place. <br /> 12/04/90 Tank three is re-excavated and sampled at a depth of 9 feet with the results <br /> indicating no further remediation required. <br /> 12/00/90 Stockpile was converted to roadbase in the month of December 1990. <br /> 4/7,8,9/93 Waste water pipeline is sampled. Analytical results indicate remediation of this <br /> are is not.required. Since the pipeline is 350 feet long a proposal for in place <br /> abandonment is requested. <br /> 6/10/93 In place abandonment of approximately 350 feet of waste water <br /> pipeline. <br /> 12/01/95 Site closure and. certification issued by PHS/EHD, <br /> s <br /> s <br /> i � t <br />