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MID.-CONTINENT RESOURCES <br /> P.O. Box 1298 <br /> Glenwood Springs, CO 81602 <br /> Anthony J. Waldron <br /> Reclamation Specialist <br /> DMG <br /> 1313 Sherman St. <br /> Room 215 <br /> Denver, CO 80203 <br /> November 30, 1992 <br /> Dear Mr. Waldron: <br /> Issues we would like to discuss with the Division at our meeting of Wednesday, <br /> Dec. 2 include the following: <br /> Sealing Plan. <br /> Next summer we anticipate sealing portals and openings. A plan has been <br /> submitted to MSHA which proposes filling most portals with at least 25' of <br /> incombustible material. This would be accomplished by heavy equipment <br /> pushing material into tho openings, or if allowed, by dynamiting them shut. <br /> Those openings at whic-i there is a potential for impoundment of water would be <br /> equipped with a U shaped drain. This includes the rock tunnel. <br /> The current approved plan of the (Ml_RD) permit calls for "impervious" seals, and <br /> anticipates impounding water in the rock tunnel by construction of a series of <br /> seals. We believe this would be unadvisable, that allowing impoundments would <br /> not be in the best interests of safety. Accordingly, we do wish to change the <br /> plans described in the permit. We have indicated to MSHA that we would like to <br /> use the dynamiting method for portal sealing in those areas which are difficult to <br /> access with heavy equipment. If this alternative is not allowed by MSHA, some <br /> surface disturbance will likely be necessary to get equipment in to these sites. <br /> We consider the sealing of portals to be our first priority for work during 1993. <br /> The order of sealing which portallopening when should be dictated by <br /> considerations such as the most efficient use of equipment, etc. <br /> Downslopes Below Portal Benches <br />