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-~ These estimated peak particle velocities aze well below even the most conservative vibration criteria for <br />damage defined by either the Office of Surface Muvng (OSM) or the United States Bureau of Mmes <br />(USBM). The four structures in the table were chosen due to their proximity to the proposed quarry <br />and the fact that all other structures aze at greater distances. <br /> <br />The next table is inserted to examine the calculated particle velocities and •subsequent pounds of <br />explosives per delay that aze theoretically possble utilising a scaled distance of 65, which is the <br />allowable scaled distance set forth by the OSM for structures between 300 - 5,000 feet from a quarry. <br />LOCATION DISTANCE FRM <br />BLAST EXPLOSIVES PER <br />DELAY BS PREDICTED PPV <br />P.S. <br />STATE PARK 2,750 1,790 0.20 <br />WOOTEN RES. 3,100 2,275 0.20 <br />CLARK RES. 4,350 4,479 0.20 <br />CLEM RES. 5,350 6,775 0.20 <br />The pounds of allowable explosives per delay utilising a scaled distance of 65 is extremely high. This <br />illustrates the point that the ground vibrations attenuate at a rate where even the use of unimaginable <br />;~ pounds of explosives per delay pose no threat or possibility of structural damage according to the <br />criteria defined by both the OSM and USBM. <br />4: <br />is <br />c <br />L <br />L <br />[~ <br /> <br />