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Section 816.65 (j) Continued. <br />~~ Blast holes per delay for each blast will be calculated according <br />to the equation at (1) (1) of 30 CFR 816.65 in order to determine <br />the maximum weight of explosi that can be detonated within any <br />8-milli-second period. Flvrock including blasted material travel- <br />ing along the ground will be controlled using proper delay patterns, <br />low powder factors and adequate stemming to prevent changes in the <br />course, channel or availability of ground or surface waters outside <br />the permit area. There are no underground mines on or within 1 mile <br />of the permit area. <br />(k) An equation for determining the maximum weight of explosives that <br />can be detonated iaithin any 6-millisecond period is in Paragraph (1) of <br />this Section. If the blasting is conducted in accordance with the <br />equation, the peak particle velocity shall be deemed to be within the 1- <br />inch-per-second limit. <br />• (1) (1) The maximum weight of explosives to be detonated within any B- <br />millisecond period may be determined by the formula W=(D/60)2 where F; _ <br />the maximum weight of explosives, in pounds, that can be detonated in <br />any 8-millisecond period, and D = the distance, in feet, from the blast <br />to the nearest dwelling, school, churc'r„ or commercial or institutional <br />building. <br />(2) For distances between 300 and 5,000 feet, solution of the eeuaticn <br />results in the following maximum weight: (See Table as shown in Office <br />of Surface Paining Permanent P.egulatory Program, Book 3, 30 CFR 816.65 <br />(1) (2). <br />Energy Fuels will conduct blasting calculations to determine the <br />maximum weight of explosives that can be detonated within any 8- <br />millisecond period using the formula set forth in paragraph {1)(1) <br />of 30 CFR 816.65 to assure that peak particle velocity will be <br />within the 1-inch-per-second limit. The weight of explosives for <br />• blasting operations will be controlled by applications of this <br />formula set forth at (1) (1) of 30 CFR 816.65. A limit for the <br />816-83 <br />