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Lr <br />BATTLE MOUNTAIN RESOURCES, INC. <br />April 07, 2011 <br />Mr. Allen Sorensen <br />State of Colorado <br />4d Division of Reclamation, Mining and Safety >/ <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Re: Battle Mountain Resources Inc. <br />San Luis Project <br />CMLRB Permit No. M-RR_1 ? <br />March 2011 Monthly Report <br />Dear Mr. Sorensen: <br />pv ff r_,- <br />RECEIVED <br />APR 1 2011 <br />c/ <br />DfvMinin of Reclamation, <br />gIan Safety <br />The following summarizes monitoring and site activities at the Battle Mountain Resources Inc. (BMRI), <br />San Luis Project for the month of March, 2011. <br />Surface and ground water monitoring and analysis were completed for all required sites during the month <br />per the terms and conditions of the TR-32 Quality Assurance and Quality Control (QA/QC) plan. <br />Vacuum on the tailing lysimeters was verified on March 31St, no water was present for sampling and <br />subsequent analysis. <br />Depths to water were collected for the tailing impoundment main embankment piezometers and the West <br />Pit monitoring wells on March 31St. March tailings impoundment piezometer measurements identified <br />these installations were either dry or contained less than 12 inches of water as illustrated in Table 2. <br />Tables 1 and 2 below identify the depth to water measurements collected for each of the site monitoring <br />wells, piezometers and lysimeters as required by the terms and conditions of the TR-32 QA/QC plan. <br />The leak detection system was measured on March 31St. A total of 660 gallons of water was excavated <br />from the leak detection system yielding a monthly average of 21.29 gpad. The tailings pond under-drain <br />measured 25 gpm. <br />During March the West Pit water treatment plant operated efficiently discharging a total of 3,435,520 <br />gallons (10.54 acre-feet) of water to Rito Seco Creek and a total of 5,582,100 gallons (17.13 acre-feet) of <br />water was transferred from the water treatment plant to the tailings impoundment. Seepage along Rito <br />Seco Creek remained dry during the month. <br />P.O. Box 310 • San Luis, Colorado 81152-0310 • (719) 379-0798 • Fax (719) 379-0713