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Fortune Revenue Silver Mines, Inc. Revenue Mine MCP Plan 2014 <br />3.3 Containment <br />The unloading area, storage area and mill reagent room all have been designed to maximize containment <br />of a spill or release. The unloading pad construction is discussed in Section 3.1. The Reagent Room in <br />the Filter Building includes the storage area for the chemicals. The room has a 6" thick reinforced <br />concrete foundation with a 4" vertical wall around all sides. This allows containment for a volume more <br />than double what the total volume is if all chemical tanks ruptured at the same time. All surfaces <br />including the vertical walls have been epoxied to prevent any erosion of the concrete so that full <br />containment of a spill will occur. In the underground mill, both the mill tunnel and the crusher gallery <br />tunnel slope at a I% grade to the intersection. As described above, the only chemical that will be stored <br />in the underground tunnels is dry lime. Both tunnels slope to a common sump at the back of the Mill <br />Area. This sump has a 3,000 gallon capacity to contain any potential release from the Mill. From the <br />portal of the Mill Tunnel, to the sump, the floor, walls, and roof are lined with concrete to seal the tunnel <br />from water infiltration and chemical /material release or spill. <br />3.4 Handling and Release /Spill Response <br />As discussed in Section 3.3 the Mill tunnels are constructed to prevent any release of material from the <br />Mill. Should a spill occur, the sump is manually emptied into an approved waste disposal containers <br />and then the containers are sent to an approved facility. Minor spills of chemicals and their safe <br />handling are discussed below. Further detail on exposure levels and first aid measures can be found in <br />the MSDS sheets for each chemical located in Appendix A. <br />3.4.1 Zinc Sulfate - Crystalline <br />When handling zinc sulfate, the following PPE should be used: chemical splash goggles, and protective <br />gloves and clothing. A MSHA approved respirator should be worn if irritation or other symptoms are <br />experienced. Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation <br />and accumulation. Avoid contact with eyes, skin, and clothing. Avoid breathing dust. <br />In the event of a spill/release, vacuum or sweep up the material and place in a suitable disposal <br />container. Avoid generating dusty conditions and provide adequate ventilation. Zinc Sulfate is a water <br />pollutant and should not be emptied into drains. Spills in excess of 1,000 pounds are considered to be <br />reportable. Any spill outside the containment in the reagent room is considered reportable. Section 5 <br />outlines the procedures for reporting. <br />3.4.2 Calcium Oxide — Powder <br />When handling calcium oxide, the following PPE should be used: tight fitting chemical safety goggles, <br />and protective gloves and clothing. A MSHA approved dust mask should be worn if conditions are <br />dusty. Protective cream should be used on any exposed skin. Wash thoroughly after handling. <br />In the event of a spill /release, sweep up material and re- containerize. Avoid using water or allowing <br />spill to contact water. Any spill outside the containment in the reagent room is considered reportable. <br />11 <br />