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O JR4Y SILVER MINES <br /> c. Xanthate Table 1 states 240 gal mixing/storage tank, drawing 700--GA-001 states <br /> 240 gal solution tank, 240 gal mixing tank and drum storage which allows for <br /> significantly more volume to be stored than reported. Please clarify the size of <br /> each tank and amount to be stored in preparation to be mixed and or stored <br /> resulting in a total volume contained within the reagent room. <br /> Table 1 shows the correct value for both mixing and storage tanks as 240 gallons. The construction <br /> drawings provided by Barr Engineering have been altered during the construction process and smaller <br /> tanks have been purchased. The smaller tank sizes will be reflected in as built drawings provided to the <br /> Division once construction is completed. The purchased tanks will each hold 120 gallons. <br /> d. Zinc Sulfate on Table 1 states 240 gal mixing/storage tank, drawing 700-GA-001 <br /> states 240 Gal Solution Tank AND 240 Gal mixing tank in addition to the bags and <br /> pallet rack. Please clarify the size of each tank and amount to be stored in <br /> preparation to be mixed and or stored resulting in a total volume contained within <br /> the reagent room. <br /> Table 1 shows the correct value for both mixing and storage tanks as 240 gallons. The construction <br /> drawings provided by Barr Engineering have been altered during the construction process and smaller <br /> tanks have been purchased. The smaller tank sizes will be reflected in as built drawings provided to the <br /> Division once construction is completed. The purchased tanks will each hold 120 gallons. <br /> 21. Copper Sulfate on Table 1 states 240 gal mixing/storage tank, drawing 700-GA-001 states <br /> 240 Gal Solution Tank AND 240 Gal mixing tank in addition to the bags and pallet rack. <br /> Please clarify the size of each tank and amount to be stored in preparation to be mixed <br /> and or stored resulting in a total volume contained within the reagent room <br /> Table 1 shows the correct value for both mixing and storage tanks as 240 gallons. The construction <br /> drawings provided by Barr Engineering have been altered during the construction process and smaller <br /> tanks have been purchased. The smaller tank sizes will be reflected in as built drawings provided to the <br /> Division once construction is completed. The purchased tanks will each hold 120 gallons. <br /> 22. Quality Assurance and Quality Control - Rule 6.4.21(16) <br /> a. Page 5 of the Revision states that the mine will send QA/QC documentation <br /> (reinforced steel, slump tests, & 28 day compressive tests) to the DRMS monthly <br /> until certification of the EPF is complete. Please provide more information <br /> regarding the QA/QC measures and tests to be conducted and reported for each <br /> task during each phase of construction. <br /> Please see 100-SS. This sheet was inadvertently left off the submitted TR-14 package because it is part of <br /> notes for the entire mill and not just the Reagent Room (area 700). The attached QA/QC package will be <br /> filled out as QA/QC is completed.Also attached is the contractor's Quality Manual used for QA/QC. <br /> 8 1 P a g e <br />