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ti <br /> <br /> <br /> <br />-zl- <br />Therefore, the final site specific propogation equation is: <br />V = 62.7 ( ~ )-~.oe <br />WT <br />Solving this equation for a velocity of one inch per second yields a scaled <br />distance of 46.1 or: <br />W An[i-log { loM A J = Anti-log 101.08. 7J = 46.1 <br />Transposing this equatilLon yields the modified scaled distance equation; that <br />1s: <br />D 2 <br />W = ( 46.1 ) <br />This is 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 /> NEW OLD <br /> Max. Max. <br />Distance in feet Weight (46) Weight (60) <br />Co nearest dwelling in pounds in pounds <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 [hat is necessary is <br />to examine the example blasters log that should accompany the application to <br />determine if all items required in the State's equivalent of 30 CFR 816.68 are <br />included. The narrative in the application should commit the applicant to <br />retaining copies of these records for at least three years. <br />