HYDRO23034

• Permit No: M1988112
• IBM Index Class Name: Hydrology
• Doc Date: 1/12/2007
• Doc Name: Monthly Report
• From: Battle Mountain Resources, Inc.
• To: DRMS
• Permit Index Doc Type: Correspondence
• Media Type: D
• Archive: No

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RECEIVED
BATTLE MOUNTAIN RESOURCES, INC. FEB 12 2001
Division of rteGaman~
Mining and Safety
February 08, 2007
Mr. Allen Sorensen
State of Colorado
Division of Minerals and Geology
1313 Sherman Street, Room 215
Denver, CO 80203
Re: Battle Mountain Resources Inc.
San Luis Project /
CMLRB Permit No. M-88-112 /
January 2007 Monthly Report
Dear Mr. Sorensen:
The following summarizes monitoring and site activities at the Battle Mountain Resources Inc.
(BMRI), San Luis Project for the month of January 2007.
Surface and ground water monitoring and analysis were completed for all required sites during
the month per the terms and conditions of the TR-32 Quality Assurance and Quality Control
(Q~QC) Plan.
Vacuum on the tailing lysimeters was verified on January 31~`, no water was present for sampling
and subsequent analysis.
Depths to water were collected fot the tailing impoundment main embankment piezometers and
the West Pit and tailings embankment monitoring wells on January 31s'. January tailing
impoundment piezometer measurements identified these installations were either dry or contained
less than 12 inches of water as illustrated in Table 2. Tables 1 and 2 below identify the depth to
water measurements collected for each of the site monitoring wells, piezometers and lysimeters as
required by the terms and conditions of the TR-32 QA/QC plan.
The tailing impoundment collection pond underdrain flow was pumped intermittently during the
month to minimize the collection pond level. The leak detection system was measured on January
30'". The January tailings pond underdrain flow average was 37.54 gpm and a total of 670 gallons
of water was excavated from the leak detection system yielding a monthly average of 19.70 gpad.
During January the West Pit water treatment plant operated efficiently discharging a total of
7,996,600 gallons (24.54 acre-feet) of water to Rito Seco Creek and a total of 738,000 gallons
(2.26 acre-feet) of water was transferred from the water treatment plant to the tailings
impoundment. Seepage along Rito Seco Creek remained dry during the month.
P.O. Box 310 • San Luis, Colorado 8 1 15 2-03 10 • [phone] Fax [phone]