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15. On Site Processing: <br /> Solution(SO) �_Chemical(CH) Thermal(TH) <br /> Heap Leach(HL) 7 Vat Leach(VL) <br /> List any designated chemicals or acid-producing materials to be used or stored within permit area: <br /> Lime, Sodium Cyanide, Sodium Bisulfite, Lead Nitrate, Zinc Oxide, Borax, Soda Ash, Potassium Nitrate, and Flourspar. <br /> Description of Amendment: <br /> If you are amending or converting an existing operation,provide a brief narrative describing the proposed change(s): <br /> Amending M1990-057 from 110(d) to 112(d) 110(d) is permitted for a TSF amendment is to change <br /> process from conventional flotation to vat leach using cyanide. Also to expand disturbance area to <br /> accommodate a larger to be permitted at a later date. Other changes include new crusher <br /> boo dii iy, leach tank pad, truck scales, temporary ReM Storage pad, and 'Ety-dow! area. <br />