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<br /> <br />~~ ~ <br />BATTLE MOUNTAIN RESOURCES, INC.9'r" <br />March 08, 2007 <br />Mr. Allen Sorensen <br />State of Colorado <br />Division of Minerals and Geology <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-88-112 / <br />Febnlary 2007 Monthly Report ,/ <br />~•'~:~A9,/I~~ <br />R ~ 22t10I <br />_p Division of Rociamatron <br />`'~D hiinin9 and Safely ' <br />Dear Mr. Sorensen: <br />The following summarizes monitoring and site activities at the Battle Mountain Resources tnc. <br />(BMRf1, San Luis Project for the month of February 2007. <br />Surface and ground water monitoring and analysis were completed for all required sites during <br />the month per the terms and conditions of the Tit-32 Quality Assurance and Quality Control <br />(QA/QC) plan. <br />Vacuum on the tailing lysimeters was verified on February 27'", no water was present for <br />sampling and subsequent analysis. <br />Depths to water were collected for the tailing impoundment main embankment piezometers and <br />the West Pit monitoring wells on February 28m. February tailing impoundment piezometer <br />measurements identified these installations were either dry or contained less than 12 inches of <br />water as illustrated in Table 2. Tables 1 and 2 below identify the depth to water measurements <br />collected for each of the site monitoring wells, piezometers and lysimeters as required by the <br />terms and conditions of the TR-32 QA/QC plan. <br />The tailing impoundment collection pond underdrain flow was pumped intermittently during the <br />month to minimize the collection pond level. The leak detection system was measured on <br />February 27`". The Febnlary tailings pond underdrain flow average was 36.63 gpm and a total of <br />710 gallons of water was excavated from the leak detection system yielding a monthly average of <br />24.48 gpad. <br />During February the West Pit water treatment plant operated efficiently discharging a total of <br />6,318,800 gallons (19.39 acre-feet) of water to Rito Seco Creek and a total of 338,500 gallons <br />(1.04 acre-feet) of water was transferred from the water treatment plant to the tailings <br />impoundment. Seepage along Rito Seco Creek remained dry during the month. <br />~~ <br />P.O. Box 310 San Luis, Colorado 81152-0310 (719) 379-0798 Fax (719) 379-0713 <br />