REP51521

• Permit No: M1988112
• IBM Index Class Name: Report
• Doc Date: 9/9/1993
• Doc Name: TRANSMITTAL OF THIRD PARTY MONITORING REPORT MAY 17-28 1993 BATTLE MOUNTAIN RESOURCES INC SAN LUIS
• From: DMG
• To: BATTLE MOUNTAIN RESOURCES INC
• Media Type: D
• Archive: No

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STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources N,~c°F eprO4
i
1313 Sherman SI., Room 215
Denver, CO 80203 ••
Phone: [phone] • reps •
FAX: (3071 B72-8106 Roy Romer
Governor
Michael B. Long
Division Director
September 9, 1993
Ms. Alana Scott
Battle Mountain Resources Inc.
P O Box 310
San Luis, CO 81152-0310
RE: Transmittal of Third Party Monitoring Report, May 27-28, 1993;
Battle Mountain Resources Inc.; San Luie Project;
Permit No. M-88-112
Dear Ms. Scott:
Transmitted herewith is the report from Dr. Ann Maest, RCG/Hagler,
Bailly, Inc., titled:
Summary Report: Third-party Monitoring of Battle Mountain resource
Inc.'s San Luis Gold Mine, San Luis, Colorado, May 2~/-28, 1993
This report was received on September 10, 1993.
The report notes a problem with the laboratory analyses: u~7on analysis
of the sample from the Upper Tailings Impoundment, the WAD cyanide
analysis was about 4 times higher than the. Total cyanide analysis,
which of course is impossible. Upon learning of the error, the lab re-
analyzed the sample, but past the recommended holding time.
The third party monitor recommended that future analyses a completed
with enough time remaining to evaluate the data and re-ana~yze problem
samples within the required holding time. The laboratory, rather,
stated that in the future, quality control for reanalysis Mill consist
of a laboratory control sample and calibration verification.
The laboratory's quality control system seems to be capable of
adequately addressing the problem. However, BMRZ and the third party
monitor should note that it will be necessary to request the lab
control sample and calibration versification results upon Submittal of
the samples. The Division notes that this is not the fir~¢t time that
the third party monitor has had trouble with Core Laboraltories. We
caution BMRI to be diligent in oversight of this lab.