Laserfiche WebLink
2.05.3(6) SURFACE BLASTING PLAN <br />During preliminary excavations at the King II portal area, a hard <br />. sandstone stratum was uncovered that may require surface blasting to <br />break and loosen in order to facilitate excavation of the portal bench. <br />The surface blasting plan is designed to address this stratum at the <br />portal bench and any other areas at the King II Mine facilities area. <br />GCC Energy anticipates retention of a licensed Colorado blaster to <br />undertake surface blasting activities and will not store explosives on site <br />(except during the times the blaster is present and preparing the shot). <br />Types and Approximate Amounts of Explosives to be Used <br />Only one type of blasting operation is anticipated, the shooting of hard <br />sandstone that cannot be broken or removed by other feasible means. <br />The type of explosives to be used are anticipated to include ANFO, <br />dynamite, and detonation cord. The amount of explosive to be used is <br />anticipated to be more than five pounds per blast and less than 2000 <br />pounds per blast. <br />Surface Blasting Records <br />A surface blasting record form will be completed and retained at the mine <br />• office for at least three years after each surface blast at the mine. The <br />form is included as pages 12 and 13 of this Section 2.05.3. <br />Blast Warning and Site Access Control <br />A blast warning will be employed prior to and after surface blasting at <br />the mine. The pre -blast warning will consist of an audible oscillating <br />siren one - minute long at one minute intervals for the three minutes prior <br />to the blast. The post -blast all clear signal will consist of five short air <br />blasts of the siren ten seconds apart, repeated three times. <br />Site access control will consist of personnel clearing the blast area of all <br />non -blast related personnel and barricading the blast area with heavy <br />equipment at all access points (roads and trails into to blast area). The <br />barricades will be maintained for fifteen minutes prior to the blast and <br />until the last all -clear signal has sounded. <br />Blast Monitoring, Pre -Blast Surveys <br />As there are no dwellings, public buildings, schools, church, or <br />community or institutional buildings within one half mile of any blasting <br />. GCC Energy, LLC <br />Section 2.05.3 <br />Page 8 <br />King Il Mine <br />November, 2009 V -/S <br />