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62.5 APPLICATION FOR PERMIT FOR SURFACE OR UNUERGROUNO MINING -- MINIMUM REQUIREMENTS <br />FOR OPERATION ANU RECLAMATION PLANS. <br />2.05,4 Reclamation Plan contd. <br />(2)(e)cont'd. <br />Vegetation on the rock fills would be monitored and if <br />ve etation rowth is unsuccessful additional r~ <br />ergo sr oil~rea ments wou~l~be applie . <br />(2)(e)(i) Revegetation of the rock slopes portals and rock fills <br />would be completed in the Spring or Fall following con- <br />struction, whichever is soonest. Excessive soil mois- <br />ture and snow cover would affect the timiny of reclama- <br />tion. Wet soils could not be evenly distributed and <br />seeding has proven to be unsuccessful on top of snow. <br />(2)(e)(ii) - (2)(f) <br />No change. <br />(2)(g) As illustrated in Figure 2.05.6 in the Final Abandon- <br />ment Appendix, Volume 6A, the portals would be perma- <br />nently sealed by constructing a temporary wall inby the <br />portal openings, then filling the portals with incom- <br />bustible material for a distance of 25 feet or more in- <br />• to the portal openings, per 30 CFR, Part 75.1711-2 of <br />the Mine Safety & Health Administration regulations. <br />To control leakage of oxygen and other yases through <br />seals constructed to block the fire damaged areas of <br />the mine from the proposed rehabilitated mine, a con- <br />Crete or steel pipe approximately 24inches in diameter <br />would be installed through the intake portal seal and <br />extended through the rock fill to the ground surface <br />(see Map 6A-8, attached). Air movement through the <br />pipe and into the sealed mine could be controlled by <br />regulating valves. The existing steel tunnel liner and <br />concrete portal structure would remain and would be <br />backfilled prior to covering the portals with the rock <br />fill. Upon final abandonment and reclamation of the <br />Orchard Valley Mine, the pipe exposed on the surface <br />would be removed. The pipe would he plugged with yrav- <br />el, soil and/or concrete (see Map 6A-P). <br />(2)(h) No change. <br />2.05.5 Post Mining Land Uses <br />No change. <br />2.05.6 Mitigation of Surface Coal Mining Operation Impacts <br />• (1)(a) An application for an emissions permit to construct the <br />rock slope entries has heen suhmitted to the Colorado <br />11 <br />