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FIGURE 7 <br />Estimated Peak Ground Vibration <br />Weston Property <br />v <br />a~ <br />0. <br />c <br />.~ <br />0 <br />> 0. <br />c <br />O <br />C7 <br />Y <br />N 0' <br />a <br />0, <br /> <br />1 <br /> <br />e <br /> OSMRE STANDARD <br />6 <br />4 <br /> <br /> GROUND VIBRATION LEVEL FROM MAXIMUM BLAST AT EXISTING QUARRY <br /> GROUND VIBR,ynON LEVEL <br />FROM MAXIMUM BLA T <br /> GROUND VIBRATION LEVEL FROM TYPICA B TAT O <br /> <br />0 <br />10 <br />Years of Mining <br />15 <br />-~- Average Charge -f- Maximum Charge <br />20 <br />25 <br />