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D Monitoring System Used and Location <br /> An Instant Blastmate III seismograph performed monitoring. Location was 860' <br /> north and east in line to closest residence (Cherry). <br /> E Blasting Protocol <br /> Upon completion of drilling, the blaster has total control of the blast area. Safety <br /> is first and foremost. During blasting operations it is the responsibility of the <br /> blaster for the safety of mine employees involved in loading the shot and <br /> handling explosives. Crushing operations may continue while loading the shot <br /> as long as blast area is a safe distance and secure. It is the discretion of the <br /> blaster to determine how shot is loaded and delayed to maximize fragmentation <br /> of material and safety of mine personnel and blast area. Once loading of shot <br /> has commenced, it is not to be stopped unless it is deemed unsafe or an <br /> emergency occurs. It is the blaster's decision on proceeding or not in inclement <br /> weather. In the event initiation of shot is delayed for any length of time, shot <br /> shall be guarded at all times until blaster relieves guard to initiate shot. It is also <br /> the responsibility of the blaster to assure area is clear and secured before <br /> ignition as well as clear and safe to enter after blast. <br /> F Blast Design <br /> Purpose of blast is to produce material for crusher feed. A minor amount of <br /> boulders are produced. An average shot is 30 holes +/- , hole diameter is 3 <br /> 1/2", hole depth is 14', spacing on a 7'x7' pattern, stemming is 1/4" minus <br /> crusher fines, anfo blasting agent is 3' per hole, surface delays 25 ms and 42 <br /> ms. <br /> When monitoring is required, it is located at permit boundary in line with closest <br /> residence. <br /> IV Blast Report <br /> Colorado Quarries completes a blast report for every shot. Items on report <br /> include: <br /> A Location <br /> B Name, Signature and License Number of Blaster <br /> C Distance and direction to nearest structure. Structure is outside of <br /> permit and not owned or leased by Colorado Quarries. <br /> D Weather conditions <br /> E Type of material blasted <br /> F Drawing shows hole spacing pattern, number and depth of holes, burden <br /> spacing and delay sequences. Drawing shows typical hole with powder <br /> and stemming. <br /> G Diameter and depth of hole. Typically 12'-14' deep and 3 1/2" diameter. <br /> H Types of explosives used. Anfo, unigel and a-cord. <br /> I Drawing shows amount of explosives per delay and weight per hole. <br /> J Initiation system shown on drawing <br /> K Amount and type of stemming used is typically 1/4" minus crusher fines <br /> a depth of 9 feet. <br /> L Blasting mats are not used. The obsidian which is glass is very brittle <br /> and requires a minimal amount of explosives to fracture. Also the <br /> crushing plant and all associated equipment is adjacent to the mine pit <br /> within 40' to 100' of the blasts. Extreme caution is utilized in loading <br /> shots so as not to destroy our own equipment. This is also reflected in <br /> the shot which was monitored in December 2021. Shot well under <br /> allowable guidelines. <br /> M Type of delays. All surface delays are utilized with either a 25 ms or <br /> 42ms. <br /> N Blasting crew noted on report <br />