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' 2.04.6 (2) (a) (i) <br />'~ is sufficiently competent for the operation of mining equiF~ment <br />provided water is not allowed to accumulate and stand for <br />considerable periods of time. For this reason active mining <br />areas are maintained as free as possible from accumulation of <br />' standing water by draining any water away frwn active haulage ways. <br />' Any water accumulation in the Bear Mine is the result of tYie <br />dust suppression system. The Bear Mine utilizes an overhe~id <br />sprinkling system on the main haul road to control dust. Ire <br />addition, there is also water used with the continuous miner. <br />' The water accumulated on the floor of the mine results from <br />leaks in the sprinkling system or in the water hose to the <br />miner. This water collects in the low spots in the mine and <br />' rarely is deeper than boot height. These accumulations area <br />fairly small averaging 15 feet in diameter, and dry up after mining. <br />1 <br />There are no discharges from the Bear Nine. <br />Overburden depth varies from a few hundred feet near the <br />north edge of the lease to about 1,400 feet in areas near t:he <br />west-central lease boundary. Refer to map 2.04.6(2)(a)(i)-•2 <br />' for the overburden isopach. Coal or rider seams above the C <br />seam include the identified D, E and F major seams, all in <br />the upper coal member, and three rider seams. <br />1 <br />The D seam is inconsistent in thickness, varying between 0 <br />t and 8 feet in height and is high in ash content. The E <br />seam varies in thickness from 10 to 20 feet. The F seam <br />' varies in thickness from 2 to 10 feet, averaging about 7 feet. <br />' As shown on the cross sections, Drawings 2.04.6(2)(a)-1 and <br />-2, the D seam is not continuous through the affected area. <br />' Above the E and F seams, there are about five stray seams ghat <br />attain thickness up to 4 feet in limited areas. This applicant <br />does not have the resources to determine the nature, depth and <br />' RE~JISED May 15, 1981 <br />42 <br />