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Hole <br />No. <br />Shot <br />No. <br />Hole Depth <br />High Explosives(lbs) <br />Blasting Agent (lbs) <br />Stemming <br />Delay (ms) <br />1 <br />1 <br />33 ft.(average) <br />1.0 lb. (450Gr <br />booster) <br />368 lbs. (average <br />per /hole) <br />11 ft. <br />17, 25 & 42ms <br />surface /350ms <br />in hole. <br />2 <br />3 <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />THRU <br />75 <br />NOTE: Seismograph was set -up at Tezak Shop Entrance on Tunnel Drive. Seismograph <br />registered .095 in /s @ 17 HZ (peak particle velocity) and 111.5 decibels @ 1.8 HZ (air blast) at <br />4:01 pm on August 9, 2013. <br />Additional Note: Seismograph was reprogramed to register air blast in decibels (db) with the <br />existing microphone (type Q. This was the first blast recorded using this type of unit measure. All <br />previous blasts had been monitored using pressure (psi) units. This change was due to previous <br />commitments made to DRMS which requires air blast units of measure to be in decibels. <br />