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•Y <br />INTEROFFICE MEMORANDUM <br />DIVISION OF ~rnvFnzr•c AHI! CSOLO/GY <br />TO: BRUCE HUMPHRIES, JIM STEVENS, <br />TOM GILLIS, ALLEN SORENSON <br />FROM: James Dillie <br />DATE: July 19, 1996 ~~~ <br />!IIlIIIIIIIIlIIIIII <br />~v <br />RE: SUNNYSIDE MINE -Permit No~~IVI-77-378 eview of <br />Operator's Cost Estimate for Bul ea a Replacement <br />I have completed a review of the operator's cost estimate for replacing the bulkhead seals <br />in the American and Terry Tunnels; I have also reviewed Tom Gillis' mem\~ regarding <br />his review. <br />Except for the replacement of the upper seals, I fully agree with Tom's analysis and <br />recommendations. Replacement of the bulkhead seals, at some future date, will require <br />a specialty contractor who will probably mobilize from some considerable distance, need <br />to recruit workers with underground mining experience and pay their living expenses <br />during the project. A substantial contingency cost will probably be included in the bid, <br />due to the many unknown variables. <br />I recommend that the operator re-calculate the bond requirement to include the costs <br />related to the items outlined in Tom Gillis' July 11, 1996 memo (excluding replacement <br />of the upper bulkhead seats). <br />M:\osa\gaw\Suonyside.jd <br />