2008-03-13_HYDROLOGY - M1988112

• Permit No: M1988112
• IBM Index Class Name: HYDROLOGY
• Doc Date: 3/13/2008
• Doc Name: February 2008 Monthly Report
• From: Battle Mountain Resources, Inc.
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: AJW
• Media Type: D
• Archive: No

BATTLE MOUNTAIN RESOURCES, INC. ''~
March 10, 2008
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 '~
February 2008 Monthly Report ~/
Dear Mr. Sorensen:
,~
1
v~~
/MAR 13 2008
Division o; ~eciamation,
IVlining and Safety
The following summarizes monitoring and site activities at the Battle Mountain Resources Inc.
(BMRI), San Luis Project for the month of February 2008.
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
(QA/QC) plan.
Vacuum on the tailing lysimeters was verified on February 28m, no water was present for
sampling and subsequent analysis.
Depths to water were collected for the tailing impoundment main embankment piezometers and
the West Pit monitoring wells on February 28~'. February 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 QAIQC 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
February 28"`. The February tailings pond underdrain flow average was 43,23 gpm and a total of
480 gallons of water was excavated from the leak detection system yielding a monthly average of
16.55 gpad.
During February the West Pit water treatment plant operated efficiently discharging a total of
7,048,400 gallons (21.63 acre-feet) of water to Rito Seco Creek and a total of 0 gallons (0 acre-
feet) of water was transferred from the water treatmenrt plant to the tailings impoundment.
Seepage along Rito Seco Creek remained dry during the month.
P.O. Aox 310 San Luis, Colorado 81152-0310 • [phone] Fax [phone]