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Mike Hansen - 3 - 10/8/87 <br /> addressed on page 23-24 and is more fully described in <br /> references 11 and 12. <br /> 3 - We agree. <br /> 4 - To date, in bioremediation work performed by Raymond and others, <br /> it has not been necessary to add bacteria. <br /> 5 - The lab tests were conducted at 18-200 C, which is approximately <br /> the measured groundwater temperature. Groundwater temperatures <br /> at 40-45' depth are not expected to have significant seasonal <br /> variations. <br /> 6 - We agree. <br /> 7 - We agree. 1f necessary MW-17 could easily be used as part of <br /> the reinjection/containment system. <br /> 8 - Exact placement of the recovery dells can not be accurately <br /> determined until the aquifer tests have been conducted. Wells <br /> will be spaced as far apart as necessary to effectively control <br /> groundwater motion. <br /> 9 - We agree. <br /> 10 - See #8 above and #4 in part 1 . <br /> 11 - We do not have a firm prediction dor the length of the <br /> remediation process. We expect it to be on the order of 1-2 <br /> years. <br /> 1f you or Mr. Johnson have any further questions please feel free to <br /> contact us at 1-800-441-8140. , <br /> Sincerely, <br /> d/ -� <br /> David E. Ellis <br /> Project Manager <br /> Carol D. Litchfield <br /> Project Manager <br />