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FIGURE 8 <br />Estimated Peak Ground Vibration <br />Lower Indian Gap Property <br />U <br />N <br />c <br />T <br />~U <br />O <br />m <br />C <br />7 <br />O <br />i <br />C7 <br />Y <br />(It <br />Q) <br />o_ <br />1.2- <br />1- <br />0.8- <br />0.6- <br />~.4- <br />0.2- <br />0 <br />0 <br />5 <br />10 <br />15 <br />Years of Mining <br /> <br /> <br /> <br />OSMRE STANDARD <br />NOTE :MINING MOVES TO NORTH PORTION OF 4TH RIDGE AT THIS POINT. <br />~ VIRGA LEVEL FROM MAXIMUM BLAST AT F <br />GROUND VIB TION LEVE FROM TY CAL BLAST AT FLAT <br />T AT EXISTING QUARRY <br />GROUND VIBRATION LEVEL FROM TYPICAL BLAST AT EXISTING QUARRY <br /> <br />-f-Average Charge ~-Maximum Charge <br />20 <br />i <br />25 <br />