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The major equipment to be utilized at the Coal Gulch Mine is set forth <br />in Table 6, Equipment List. <br />The average height of the "A" Coal Seam is approximately six (6) feet. <br />Ventilation. The objective of mine ventilation will be to provide an <br />adequate supply of uncontaminated air to the working areas. The volume <br />and velocity of this air will be sufficient to dilute, render harmless <br />or carry away, flammable, explosive and harmful gases, as well as dust, <br />smoke, and explosive fumes. <br />The projected mine air courses have been designed to provide a volume of <br />air necessary to meet these objectives. <br />On one side of the main entries there will be two intake air courses. <br />The entry immediately to the left of the intake entries will be a <br />haulage entry; it will also be used as an intake course. To the left of <br />• the haulage entry will be the belt line entry, which will be isolated <br />from intake and return air flows with ventilation stoppings. <br />The belt line entry will be a neutral air course. At the extreme left of <br />the entry system will be two return air courses. <br />• <br />2.05-6 <br />