HYDRO30476

• Permit No: M1988112
• IBM Index Class Name: Hydrology
• Doc Date: 1/12/2005
• Doc Name: December 2004 Monthly Report
• From: Battle Mountain Resources Inc.
• To: DMG
• Media Type: D
• Archive: No

BATTLE MOUNTAIN RESOURCES, INC.
January 10, 2005
Mr. Tony Waldron
State of Colorado
Division of Minerals and Geology
1313 Sherman Street, Room 215
Denver, CO 80203
JAN i 2 2~~5
Re: Battle Mountain Resources Inc.
San Luis Project
CMLRB Permit No. M-88-112
December 2004 Monthly Report
Dear Mr. Waldron:
The following summarizes monitoring and site activities at the Battle Mountain Resources Inc.
(BMRI), San Luis Project for the month of December 2004.
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 ConVOI
(QA/QC) plan.
Vacuum on the tailing lysimeters was verified on December 31", no water was present for
sampling and subsequent analysis.
Depths to water were collected for the tailing impoundment main embankment piezometers on
December 29`h, the West Pit and tailings embankment monitoring wells were collected on
December 29`". The December 29th 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
December 29'". The December tailings pond underdrain flow average was 43.70 gpm and a total
of 540 gallons of water was excavated from the leak detection system yielding a monthly average
of 17.4 gpad.
During December, the West Pit water Veatment plant operated efficiently discharging a total of
8,465,100 gallons (25.98 acre-feet) of water to Rito Seco Creek and a total of 468,000 gallons
(1.44 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. The monthly
precipitation accumulation for December was i .0" inches, with the largest accumulation
occurring on December 27'" (.17").
PA. Box 310 San Luis, Colorado 8 1 1 52-03 10 [phone] Fax [phone]