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~ ~ ~ ~ ~ ~ ~ ~ it• ~ ~ ~ ~ ~ ~ ~ ~ illy ~ <br />1.2- <br />1- <br />U <br />().8- <br />C <br />U <br />O <br />0.(i- <br />a <br />c <br />0 <br />Y <br />~.4- <br />d <br />0.2- <br />FIGURE 2 <br />Estimated Peak Ground Vibration <br />Montgomery School Property <br />0 <br />0 <br /> <br /> <br />OSMRE Ground Vibration Compliance Standards <br />Ground Vibration Level from Maximum Blast at Dowe Flats <br />Ground Vibration Level from Typical Blast at Dowe Flats <br />Recommended Ground Vibration Compliance Standard <br />_ _ _ _ Ground Vibration level from Maximum Blast aeons Quarry _ _ _ _ <br />N <br />Ground Vibration level from Typical Blast at Lyons Quarry <br />5 10 15 <br />Years of Mining <br />20 <br />25 <br />f Average Charge --I-- Maximum Charge <br />