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16. According to EPA definition of injection wells,the well is used to place fluids underground. <br /> Waste rock is not a fluid thus does not require a UIC permit. Additionally, waste rock mentioned <br /> in Section 2.4.4.1 is rock that will not be brought to the surface but rather will backfill a mined <br /> out portion of the mine as the mine progress. <br /> 17. The Blasting Plan will be submitted in a subsequent response to the Division. <br /> 18. There is only one vent raise in the mine plan.The term "network" refers to the vent raise <br /> intersecting each level as the mine continues development down dip. Each intersection with a <br /> level is a vent raise for that section but overall, all vent raises sections continue to the surface as <br /> one continuous vent raise.The mine vent location is located on the site plan. It is located on the <br /> mill pad. Figure 2 in Appendix A includes a blue line beginning at the portal and extending <br /> underground represents the ventilation "network". <br /> 19. Civil engineering of the mill building and secondary containment will proceed upon <br /> recommendation for approval of the mine permit by the Division. The details requested for the <br /> mill design and secondary containment will be provided to the Division upon receipt. In general <br /> terms, mill building ground floor will have berms separating various areas for the <br /> containment of spillages including reagents. Area sumps and pumps will be placed in <br /> these areas for pumping back of spillage to their appropriate locations. Zephyr commits <br /> to submitting the engineered plans via a Technical Revision as well as a written notice prior to <br /> construction of the EPF that will include an inspection schedule. <br /> 20. Zephyr accepts the requirement of a mill certification as described. <br /> 21. All exterior storage tanks will have individualized secondary containment with adequate <br /> capacity to contain 110%of the tank. The bermed area around each tank will include a sump <br /> and pump that will pump spillage to the appropriate tank or location in the mill. Details <br /> regarding tanks outside the mill building were added to Section 2.4.5.5. Civil engineering of the <br /> mill building and secondary containment will proceed upon recommendation for approval of the <br /> mine permit by the Division.The requested secondary containment detail for both the tanks and <br /> return lines will be included in the civil plans. The civil plans will include a QA/QC plan, <br /> construction schedule that will include incremental inspections during construction. The <br /> applicant commits to providing written notification to the Division prior to construction of the <br /> EPF. <br /> 22. Section 2.4.5.6 was revised to include delivery and storage detail. Reagent mixing will occur <br /> inside the mill building in the "reagents area" on the mill diagram in Appendix C. Civil <br /> engineering of the reagent system will proceed upon recommendation for approval of the mine <br /> permit by the Division. The civil plans will be submitted to the Division upon receipt. <br /> Surface exploration has become cost prohibitive due to the depth below ground surface of the <br /> GMR. The first underground task will be subsurface exploration, i.e. extracting core samples,to <br /> better characterize the geology including presence of sulfide mineralized zones. As Item 1 <br /> explains,the geology is granites rather than sulfide mineralized zones thus PAG is not likely. <br /> Core assay, however, includes sulfur content that will provide NAG vs. PAG material presence. <br /> Mine development currently avoids exposure of PAG material and subsequent hydrologic <br /> effects. <br /> 23. Appendix E: AMEC FTSF Design contains sub Appendix F "Technical Specifications and CQA <br /> Plans"that includes underdrain system construction. <br />