ENFORCE27114

• Permit No: M1988112
• IBM Index Class Name: Enforcement
• Doc Date: 12/9/1992
• Doc Name: STATUS & PROGRESS REPORT BATTLE MOUNTAIN GOLD 04/23/1992 VIOLATION BOARD ORDERED ABATEMENT PLAN
• From: DMG
• To: MLRB
• Media Type: D
• Archive: No

• iii iiiiiiiiiiiu iii
STATE OF CO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman 51., Room 215
Denver, CO 80203
Phone: [phone]
FAX: [phone]
DATE: December 9, 1992
TO: Mined Land Reclamation Board
FROM: Larry Oehler ~~~
OF' eon
~ ~~
Ne
~~
. ~.
/B ]6
Rny Romer
Governor
Michael B. Long
Div isinn Direc mr
RE: Status and Progress Report, Battle Mountain Gold, April 23,
1992 Violation, Board Ordered Abatement Plan, $an Luis
Project, File No. M-88-112
The following status and progress report is for the period October 22,
1992 through December 7, 1992.
1. Increased Tailings Area Security:
Status: Tailings area security continues.
2. Assessment of Environmental Impact:
Status: Satisfied.
3. Accelerated Frequency of Environmental Monitoring:
Status: Satisfied.
Progress: BMG is now monitoring in accordance with $pproved
permit Technical Revision No. 6.
4. Tailings Cyanide Detoxification:
Status: Ongoing - in compliance with Board Order.
Progress: BMG is detoxifying their waste stream usi>~g the INCO
Cyanide Destruction Circuit which became operationa October 21,
1992.
BMG in-house analyses show WAD cyanide to be less than 1 ppm in
the active tailings pond for the period November 22-28, 1992.
BMG is treating the collection pond with hydrogen peroxide and
for the period November 22-28, 1992 their in-house analyses show
WAD cyanide levels ranging from 0.1 to 5.4 ppm.
The Division has not vet received results of indeoehdent
laboratory or third party analyses of monitoring samples since
the INCO circuit became fully operational and the collection pond
hydrogen peroxide treatment started. Third party sampling
occurred on November 23-24, 1992.