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iii iiiiiiiiniu iii <br />BATTLE MOUNTAIN RESOURCES, INC. <br /> <br />May 2, 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 />AEC~IVE~ <br />MAY 0 71C.^l <br />Re: Battle Mountain Resources Inc. ~""S'0n at Mina, • ~,. <br />San Luis Project "" ~^^r~,~ <br />CivILiZii Permit M-88-112 <br />Response to Change of Laboratory Correspondence <br />Dear Mr. Dillie: <br />T~ a ~ <br />In response to your March 28, 2001 correspondence concerning Battle Mountain <br />Resources Inc. (BMRI) decision to change analytical laboratories, I provide the following <br />responses to your questions or concerns. With regards to the analytical lowest method <br />detection limit (MDL} for the three constituents (i.e., cadmium, silver, lead) you <br />identified, the analytical lowest MDL's for the three constituents used in the analytical <br />laboratory "Request for Quotation" (RFQ) was taken from the San Luis Project <br />"Colorado Discharge Permit System" permit issued by the Colorado Depart>#tent of <br />Public Health and Envirotunent on December 8, 2000. As identified in Part I, page 18 of <br />that permit, the lowest MDL's requested in the RFQ were to comply with specified <br />analytical methodologies and minimum detection levels specified in and apptloved <br />pursuant to 40 C.F.R. part 136. In addition the bidding laboratories were given the <br />following specific permit conditions presented in the CDPS permit: <br />"When t{te most sensitive nnalvtiral method which complier with this part. has a <br />detection limit greater than or equal to the permit limit, the permittee shall report "less <br />t{tan "tlre detection limit, " as appropriate. Suc{t reports shall not be cottsid~red as <br />violations of the permit limit. The present lowest method detection limits fori specific <br />parameters (which have limitations which are, in sortie cases, less than or equal to the <br />detection limit) are as follows <br />Arsenic 0.01 Ing/l <br />Cadmium 0.0003 mg/I <br />Chromium 0.01 ntg/l <br />Chromium, Hexavalent 0.01 mg/l <br />Copper 0.005 ntg/l <br />Cyanide 0.010 mg/l <br />Lead 0.005 mg/l <br />A SUBSlOlARV OF BATTLE AfOUNTAIN GOLD CO,t9PAA'>' <br />P.O. Box 310 Ssn Lui>. Colorado SI Is?-0310 (719) 672-JI'_? Fux (719) 672-3363 <br />