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Star Mine Operations, LLC Revenue Mine MCP Plan 2012 <br />Part 3: Material Movement and Storage <br />3.1 Transportation <br />The chemicals used in the milling process will be delivered to the mine site by highway trucks. The <br />chemicals used will be delivered, transported to the mill and stored in their factory containers. Once <br />onsite, the chemicals will be unloaded in the designated area. This area will be a compacted pad 20' <br />wide by 20' long shown on the SPCC Plan Map. The pad will be surrounded by a compacted 5" mound <br />that is gently sloped on both sides to allow the truck and equipment to pass over without disturbing the <br />cargo. The purpose of the pad is to contain any material or chemical release or spill in the unloading of <br />the truck. A small forklift or skid -steer will be used to unload the truck and transport the material <br />underground into the mill. The overall process of unloading and transportation will occur as quickly as <br />possible while maintaining safe operations. This will reduce the exposure to potential spills outside of <br />containment. <br />3.2 Storage <br />Once the materials have been transported to the mill facility underground, they will be stored in their <br />factory containers until use. It is anticipated that the bulk granular chemicals will come in either 50 <br />pound bags or 2,000 pound super- sacks. The storage of either is similar in that each will ship on pallets. <br />The liquids are anticipated to ship in either carboys or drums. Storing the materials underground is ideal <br />as it is cool, dry and out of direct sunlight. Following is a discussion on the storage of each chemical: <br />3.2.1 Zinc Sulfate - Crystalline <br />Zinc Sulfate should be stored in a cool, dry, well - ventilated area away from incompatible substances. <br />Zinc Sulfate is considered to be stable under normal temperatures and pressures. It should be stored in a <br />location that avoids excess heat. At temperatures in excess of 932 degrees F, it decomposes and <br />produces oxides of sulfur and toxic fumes of zinc oxide. It is incompatible with strong bases. <br />3.2.2 Sodium Carbonate — Granular <br />Sodium Carbonate should be stored in a cool, dry place. It should be stored in a tightly closed container <br />and kept away from acids. Do not get water inside containers. <br />Sodium Carbonate is considered to be hygroscopic: it will absorb moisture or water from the air. It <br />should be stored in a location that avoids incompatible materials such as acids, strong oxidizing agents, <br />metals, fluorine, hydrogen peroxide, phosphorus pentoxide, 2,4,6 - trinitrotoluene, or 2,- 4- dinitrotoluene. <br />Generating sodium carbonate dust, exposure to excess heat or moist air should be avoided. <br />9 <br />