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Typically, six to eleven holes per row and six to twenty rows per shot will be used. Smaller or <br />larger patterns may be used or tried to make the shot more economical or to provide better <br />overburden fragmentation. <br />Standard on- echelon delay sequencing in normal production shots will use appropriate delays in <br />order not to exceed the peak particle velocity as described in Table 2.05.3(6)(a) -1. WFC may <br />vary from this design somewhat to reduce ground vibrations and increase fragmentation. <br />Normal production blasting breaks to two faces and delays will all be non - electric. Non - electric <br />delays will be located on the surface and down each borehole to minimize the number of holes <br />detonating in any given 8ms time period. Use of non - electric delays reduces noise and <br />increases safety in a region of frequent thunderstorms. <br />A typical production, decked production and parting blast design can be examined in <br />Attachment 2.05.3(6)(a) -5. These blast designs have been approved by a certified blaster. <br />Explosive Selection and Poundage <br />Actual field experience at the New Horizon 2 Mine indicates a high percentage of the blast -holes <br />contain some amount of water. Since the startup of the mine, various water resistant products <br />and loading techniques have been examined and tried. New Horizon 2 Mine has settled upon <br />the use of: a) bagged gel products in conjunction with ANFO in plastic sleeved holes for slightly <br />wet holes, b) de- watering pumping of the wet holes in conjunction with lined ANFO for <br />moderately wet holes c) straight ANFO for the dry holes. Typical poundage of explosives used <br />per hole will range from 0 -600 pounds of ANFO /slurry for full bench production blast, 0 -250 <br />pounds of ANFO for deck shots and 0-40 pounds of ANFO for parting shots, see Attachment <br />2.05.3(6)(a) -5. It is not unusual to use all of the methods listed above, along with loading <br />conventional straight ANFO in dry holes in a single overburden blast pattern. <br />Explosive Storage <br />There will be no explosives stored on the mine permit. All explosives will be handled and <br />transported by an independent contractor. The independent contractor will store all explosives <br />off of the mine permit, at their own facilities. <br />Section 2.05.3 (6) (a) Page 5 <br />