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U <br />Section 816.23 (b) Continued. <br />KeY i " lQdith ` Aiea <br />Examination of Map 31, Kerr Mine Azea Soil Removal and Storage <br />reveals that all proposed stockpiles are located within stable <br />portions of the proposed permit area where the stockpiles are or <br />will be protected from the external effects of both wind and water <br />erosion. Siting has also been made to avoid disturbances other <br />than those incidental to their deposition and removal. Large <br />brightly colored signs will be placed on each stockpile to prevent <br />inadvertent disturbance, unnecessary compaction or contamination. <br /> <br />In addition to the physical protection afforded through proper <br />location, additional measures are implemented once the stockpiles <br />are in place. These measures include the planting of rapidly <br />growing mulch species discussed in Section 780.18 and Section <br />816.114. The perennial grass and forb mixture described in Section <br />780.18 will also be planted in all the stockpiles that are to <br />remain in place for a period in excess of one year. The planting <br />of the stockpiles will be accomplished by drill seeding those <br />portions flat enough for planting machinery to operate. Sloping <br />areas will be broadcast seeded. Planting shall be done either in <br />the spring or fall planting periods as discussed in Section 780.18 <br />and Section 816.113. <br />A straw mulch will be utilized for topsoil and subsoil stockpile <br />sideslope stabilization if the broadcast seeding proves unsatis- <br />factory in the establishment of seeded vegetation and in control- <br />ling erosion. The past experience of Kerr Coal indicates that <br />vigorous annual grains are highly effective in stabilizing topsoil <br />stockpiles. If straw is applied using a straw mulcher, clean grain <br />straw will be applied to all stockpiles at the rate of 3,000 pounds <br />of straw per acre. <br />816-22 <br />