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BATTLE MOUNTAIN RESOURCES, INC. <br /> April 9,2018 RECEIVED <br /> APR 13 2018 <br /> DMSION OF RECU RATION <br /> Mr. Lucas J. West MINING AND SAFETY <br /> State of Colorado <br /> 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-88-112 <br /> March 2018 Monthly Report <br /> Dear Mr.Lucas: <br /> The following summarizes monitoring and site activities at the Battle Mountain Resources Inc. (BMRI), <br /> San Luis Project for the month of March 2018. <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 28th, 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 29th. The March tailing 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 I 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 29th.A total of 860 gallons of water was excavated <br /> from the leak detection system yielding a monthly average of 29.6 gpad.The tailings pond under-drain <br /> measured 38.5 gpm. <br /> During the month of March,the West Pit water treatment plant operated efficiently discharging a total of <br /> 6,207,100 gallons(19.05 acre-feet)of water to Rito Seco Creek and a total of 878,400 gallons(2.70 acre- <br /> feet)of water was transferred from the West Pit to the tailings impoundment. Seepage along Rito Seco <br /> Creek remained dry during the month. <br /> P.O.Box 310 - San Luis,Colorado 81152-0310 - (719)379-0798 - Fax(719)379-0713 <br />