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~ ~ III Nlilllillllllll <br />INTEROFFICE MEMORAIVD UM <br />DZi?SIQM OF ffi!1ffiPALS Alien C80LOiGY' <br />TO: BRUCE HUMPIiRIFS, JIM STEVENS, <br />TOM GILLIS, ALLEN SORENSON <br />FROM: James Diliie <br />DATE: July 19, 1996 <br />RE: SUNNYSIDE MINE -Permit No. M-77-378 -Review of <br />Operator's Cost Estimate for Bulkhead Seal 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' memo 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 seals). <br />M: bu1;~wlSumy~ide.j d <br />