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FIGURE 8 <br />Estimated Peak Ground Vibration <br />Lower Indian Gap Property <br />U <br />N <br />c <br />.~ <br />0 <br />m <br />C <br />7 <br />Q <br />Y <br />CIf <br />N <br />D_ <br />1.2- <br />1- <br />0.6- <br />0.6- <br />0.4- <br />0.2- <br />0 <br />0 <br />5 <br />10 <br />Years of Mining <br /> <br /> <br />OSMRE STANDARD <br />NOTE :MINING MOVES TO NORTH PORTION OF 4TH RIDGE AT THIS POINT. <br />un ~n LEVEL FROM MAXIMUM BLAST AT OWE F <br />GROUND VIBRA ION LEVE FROM TY CAL BLAST AT W FLAT <br />AT EXISTING QUARRY <br />GROUND VIBRATION LEVEL FROM TYPICAL BLAST AT EXISTING QUARRY <br /> <br />15 <br />20 <br />25 <br />f Average Charge ~ Maximum Charge <br />