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<br /> <br /> <br /> <br />_21_ <br />Therefore, the final site specific proooga[ion equation is: <br />V 62.7 ( W )-t,oe <br />Solving this equation for a velocity of one inch per second yields a scaled <br />distance of 46.1 or: <br />D Lo¢ H R r log 62. 7l - <br />W ~ Anti-log [ M = Anti-lo Il 1.08 J 46.1 <br />Transposing this equation yields the modified scaled distance equation; that <br />is: <br />D z <br />W ( 46.1 ) <br />This Ss the modified scaled distance equation for Energy Fuels Incorporated. <br />The following table illustrates how this effects the weight of explosive per <br />delay as compared to using a scaling factor of 60. <br />Distance in feet <br />to nearest dwelli <br />NEW <br />Max. <br />weight (46) <br />in pounds <br />OLD <br />Max. <br />weight (60) <br />in pounds <br /> <br />1000 471 278 <br />1500 1059 625 <br />2000 1882 1111 <br />2500 2940 1736 <br />3000 4235 2500 <br />3500 5765 3403 <br />4000 7529 4444 <br />4500 9528 5625 <br />5000 11763 6944 <br />with a scaling factor of 46.1, Energy Fuels Incorporated can now shoot 1.7 <br />times the amount of explosive per delay as they could before [hey had a <br />modified scaled distance equation. <br />817.68 Records of Blasting Operations <br />In order to evaluate this portion of the regulations, all that is necessary is <br />to examine the example blasters log that should accompany the application [o <br />determine if all items required Sn the State's equivalent of 30 CFR 816.68 are <br />Sncluded. The narrative in the application should commit the applicant to <br />retaining copies of these records for at least three years. <br />., .. .. ;! <br /> <br />