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iii iiiiiiiiiiiii~ii <br />BATTLE MOUNTAIN RESOURCES, INC. <br />May 24, 1943 <br />Mr. Larry Oehler <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />'1 _~~ :~rlJr- <br />~..(, <br />~~ MAY 2 81993 <br />~t'.~ ~~ <br />4~I,5` Giv/sron ~: qulle! - . <br />~- J. <br />~~ .., <br />g~RE MJIINWN <br />OOlO COl.4ANY <br />Re: Battle Mountain Resources, Inc. (BMRI) - San Luis <br />DMG Permit No. M-88-112 <br />Bi-Weekly Water Sample Report - March 19-20, 1993 <br />Dear Mr. Oehler: <br />Enclosed are the analytical reports from Core Laboratories <br />for the bi-weekly water samples collected on March 19-20, <br />1993 as specified in the April 1992 Abatement Plan. T'he <br />final analytical reports from Core Laboratories were <br />received at the San Luis Mine on May 20, 1993. The cross- <br />reference table between sample identification numbers and <br />sample locations is attached. As specified in TR-006, <br />calculated free and wad cyanide values for the process point <br />samples are enclosed. <br />No deviations from the sampling QA/QC protocols, TR-006, <br />were noted for any of the samples collected. However, it <br />should be noted that approximately six inches of ice was <br />chipped from the surface of the RS-5 sampling location <br />before flowing water was reached. The sediments in the <br />stream bed were disturbed during ice removal. The stream <br />bed was given time (approximately 30 minutes) to sett],e, <br />and the flowing water was allowed to visibly clear. Pive <br />process points, RS-5, and wells M-9, M-12, and M-13 were <br />sampled. Wells M-2, M-6, M-7, and M-8 and the three <br />lysimeter pairs were checked and found to be dry. A barrel <br />filter rinse blank, a field blank, a lower pond duplicate, <br />and a duplicate at M-13 were taken as field quality control <br />samples. <br />The Core Lab analysis for weak acid dissociable (wad) <br />cyanide, alkalinity, bicarbonate, carbonate, total di9solved <br />solids, total suspended solids, total organic carbon, and <br />chloride for all samples was performed after the EPA <br />recommended holding time was exceeded. A narrative frrom <br />Core Labs discussing these samples is attached. <br />This letter also serves as a follow-up to our telephone <br />conversation of May 24, 1993. As earlier discussed, the <br />cyanide values for the lower pond, the lower pond duplicate, <br />the upper pond, the collection pond, and the post detopc <br />samples collected on March_ 20 were slightly elevated wjith <br />wad cyani a va ues in the range of 5.7-6.1 ppm and-total <br />,1 cUBSlD/ARY OF BA77l.h. h}OUMA/N GOLD COMPANY <br />P.O. BOX 310 SAN LUIS. COLORADO 81152 0310 (7191 b7D336'_ FAX (719) 67L336J <br />