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III IIIIIIIIIIIIIIII <br />999 <br />BATTLE MOUNTAIN RESOURCES, INC. <br />March 20, 2001 <br />Mr. Jim Dillie <br />State of Colorado <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO <br />RECEII~ED <br />MAR 2 1 001 <br />Division of Mineral and Geology <br />Re: Battle Mountain Resources Inc. <br />San Luis Project <br />CMLRB Permit M-88-112 <br />Tailings Line Collection Pond "As-Built" <br />Dear Mr. Dillie: <br />Attached please find a copy of a Technical A4emornndum from Mr. Walter Ni coli. P.E. <br />of Telesto Solutions, [nc. containing design criteria, construction methods, "a -built" <br />verifications, and "as-built" drawings for the tailings line collection pond. Th collection <br />structure has been designed and constructed to collect West Pit groundwater o water <br />treatment plant brine solution, in the unlikely event of a future line failure. A we <br />previously discussed, the collection structure is to collect and contain the hdl olution <br />volume of the pipeline and the nominal volume of fluid (i.e., groundwater, bri a solution) <br />pumped over a 1-hour period. In light of the volume of the pond, this nomina pumping <br />rate volume equates to approximately 450 gpm. Although, BMRI will operat the <br />associated primping facilities at a rate not to exceed 350 gpm and commits to i sped and <br />record hourly inspections of the pipeline facility, any time the pipeline is in us .Should a <br />pipeline leak occur, BMRI will suspend pumping operations until such pipeli leak is <br />repaired and will promptly collect any tuids contained in the pond and transf these <br />fluids to the tailings facility. In addition, BMRI will excavate exposed soils i the pond <br />area and transport these soils to the tailings facility. <br />Afrer reviewing the above discussion and the attached Tec/znical lLiemorcrndu should <br />any questions arise or clarifications to the material are needed, please contact ither Mr. <br />David Long at (719) 379-0798 or myself at (775) 240-3559. <br />Sincere) , <br />iI y <br />Director of Environmental Affairs <br />Cc: David Long <br />file <br />A SURSIDIAR}"OF BATTLE h10 UNTAGV GOLD COM1IPAN7~ ""~ <br />P.O. Bnx 310 San Lws. Colorado 81152-0110 (719 672-4122 Fay (719) 67?-13ry.+ <br />