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~Mo <br />DATE: April 29, 1992 <br />TO: Janet <br />FROM: Randy <br />RE: Munger Canyon Temporary/Permanent Sealing of <br />Portal <br />I spoke with John Walters today; he said that he would be <br />sealing the Munger Portal for temporary closure with <br />possible permanent implications. The sealing right now <br />would be to secure the mine from trespassers. John plans <br />to install a brick wall as specified in the permit application. <br />The wall has been approved by MSHA. It will be installed <br />25 feet in and it closure is permanent the 25 feet will be <br />backfilled per MSHA and MLRD permit. <br />John just called back and said that it would not be a brick <br />wall but a foamed concrete product that has been <br />approved by MSHA. f told him that if our application <br />specified a brick wall that a modification would have to be <br />made to the application and that such a change would <br />have to be handled as a minor revision. <br />