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overlies the coal. The overburden drill is used to drill the <br />• holes into which the primer and AI~'O is placed. The holes vary <br />in depth depending on the nature of the overburden, but typically <br />they are 40 feet in depth. Figure 1 gives the typical blasting <br />and blast hole loading pattern. The blasts are usually 15 feet <br />apart, however the spacing is dependant on the strength of the <br />sandstone. Figure 2 is a Dopy of the Blasting Form that will be <br />used by TBM for their blasting record. <br />In order to assure the safety of the workers and the <br />public, the following measures are practiced prior to setting <br />off an overburden shot. First an audible warning is given. The <br />warning is as follows: <br />Warning - 10 long air horn soundings <br />5 minutes prior to blast <br />- 10 short air horn soundings <br />1 minute prior to blast <br />All Clear - One long air horn sounding <br />In addition, mine personnel block off aocess to the blast <br />area. This is done by blocking the haulroad into the area with <br />a light truck and stationing a worker there to wntrol access <br />to the area. <br />5.3.2.7 Topsoil l~distribution <br />Upon ca~letion of the backfilling and rough grading <br />operations the area is ready to be retopsoiled. The redistribution <br />of topsoil occurs in one of two ways. The first being the <br />• direction redistribution of topsoil, in this process freshly <br />salvaged topsoil is redistributed over the graded area. If <br />V-I6 <br />