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MINING 607TOM WITHOUT ADDITIONAL SUPPORT <br />1. Bottom coal may be recovered in retreat method as shown on <br />the attached drawing (Page 13B). <br />2. Additional safety precautions for mining bottom coal for <br />yobbina of rock: <br />A. Areas where bottom coal has been removed of±er initial <br />mining for the gobbing of rock will be considered <br />impassable until backfilled and will be marked with <br />danger signs. <br />E. Bottom coal will not be rained in areas where ventila- <br />tion needs tc be advanced. <br />C. h'i~~ing equipment with Canopy and rib protection must <br />oe removed from bottom coal removal arez before opera- <br />tors enter or lezve the protection of the canopy. <br />• 3. Bottom coal will not be removed from any area that would <br />interfere with safe passace in primary or secondary <br />escapeways. <br />• <br />Page Thirteen A <br />Added 05/26/82 <br />