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__MA� <br /> OURAY SILVER IURVE5 <br /> 12. Throughout TR-14 and its additional materials No sources of clean water are <br /> indicated. Please indicate if water will be available for clean-up and chemical <br /> mixing within the reagent room and the source of that water. <br /> Response: Water for eyewash stations and safety showers will come from the potable <br /> water system in the mill buildings. Water for clean-up and chemical mixing will come from <br /> a coffer dam located near the course ore bin. <br /> 13. Please identify the location of safety equipment within the reagent room including <br /> but not limited to, safety eyewash/ shower station, first aid equipment, etc. <br /> Response:Note#4 on drawing 700-GA-001 states that the design and installation of safety <br /> showers and eye wash stations will be coordinated between the contractor and OSMI. <br /> These stations will be field fit during the construction of the reagent room. As-built <br /> drawings will be submitted to the division that show locations of safety equipment in the <br /> reagent room. The safety shower and eye wash will be located within secondary <br /> containment so that water used for safety purposes is contained. First aid equipment will <br /> be provided in accordance with MSHA regulations (30 CFR Part 57.15001). MSHA <br /> conducts quarterly inspections of the facility. <br /> 14. Given that most of these chemicals are harmful to breathe and/or cause eye <br /> damage, please indicate if the storage and mixing tanks are completely enclosed <br /> so that PPE is notrequired once chemicals have been transferred to the storage <br /> tanks or provide information clarifying why PPE would not be required when <br /> entering the reagent buildingPursuant to Rule 6.4.21(5)(a) <br /> Response:Appropriate PPE as described in the SDS sheets will be worn by mill personnel <br /> working in the reagent room in accordance with OSMI's safety protocols, SDP's, and <br /> MSHA regulations (30 CFR Part 56.15006). There are also tank vents on the sodium <br /> metabisulfite, CuSO4, ZnSO4, lime, MIBC (Oreprep), and Xanthate tanks, which vent <br /> fumes from the tanks outside of the building. <br /> 15. Sump/Contaminated Water <br /> a. If chemicals were to be reported to the sump that would constitute a"spill". <br /> TheMSDS' explicitly states "Never return spills in original containers for <br /> re-use"however the sump system for the flocculant detailed in drawing 700- <br /> PI-002 showsthe spilled material would be re-introduced to the system. In <br /> general once a chemical has escaped from the system and comes into <br /> contact with the floor it should not be incorporated into the system. That's <br /> taking a spilled chemical and not disposing of it properly. Chances for cross <br /> 9 Page <br />