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3. The phase, accidents damaging the mine, the. . <br />" has been mistakenly deleted from the bottom of page <br />3-11. <br />4. The phase, permanent cover for erosion <br />control.", has been mistakenly deleted from the top of <br />page 3-14. <br />5. On page 3-53, in the bottom paragraph, "silo" should be <br />"silos". Have other references to a single silo been <br />updated to reflect the fact that two exist? <br />B. In revising permit application pages, several deletions <br />were made by West Elk Coal Company (WECC) which require <br />clarification. WECC should address whether these <br />deletions are part of a previous revision and why they <br />have been deleted. <br />1. 1986 page 2-314 contains the following paragraph which <br />has been deleted: <br />"After mining has begun and mining conditions can be <br />related more clearly to geology, additional dri]ling <br />ahead of mining is normally considered. Monitoring <br />underground geology as related to mining conditions as <br />mining progresses is planned. This will allow <br />continued evaluation and updating of in-mine geologic <br />hazard predictions. As mining progresses, the relative <br />importance of the various geologic impacts on mining <br />will be continuously evaluated. <br />2. In Section 3.2.7 .1 .f, the discussion of the rotary <br />breaker, the sentence at the end of that paragraph has <br />been deleted. It read, "An additional crusher was <br />permitted (See Appendix A-10) but has not been <br />installed." How has the situation changed to warrant <br />this deletion? <br />II. Operations Description <br />1. There appears to be a discrepancy in the acreage numbers <br />presented in Figure 1.6.4 (page 1-70), Table 1.13A (page <br />1-155) and Table 1.136 (page 1-156). Note that mineral <br />and surface ownership numbers on Figure 1.6.A are not <br />equal. Please make these values consistent on these <br />tables and any others, as appropriate within the permit <br />application. Lastly, please explain the note at the <br />bottom of Table 1.13.A. <br />2. Page 3-106 indicates that E seam work to develop <br />ventilation and escape ways may be done. What is the <br />extent of your proposed E-seam development and what is the <br />maximum amount of affected acreage which would be created <br />by such work? <br />