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Battle Mountain Resources, Inc. <br />San Luis Project <br />P.O. Box 310 <br />San Luis, Colorado 81152-03 1 0 <br />(719) 379 -0798 <br />April 22, 2015 <br />Mr. Wally Erickson <br />Colorado Department of Reclamation, Mining, & Safety <br />1313 Sherman, Room 215 <br />Denver, CO 80203 <br />Re: Battle Mountain Resources, Inc. <br />San Luis Project — Permit No.M -88 -112 <br />TR-3Z Response Plan - Monitoring Well M -14 Update <br />Dear Mr. Erickson: <br />RECEIVED <br />1,,-'APR 2 8 7015 <br />DIVISION OF RECLAMATION <br />MINING AND SAFETY <br />As outlined in the TR -32 Response Plan for monitoring well M -14, dated August 28, 2013, BMRI collected <br />samples utilizing the micro purge sampling technique between September 2013 and February 2014 and has <br />continued to collect samples on a monthly basis. Samples were collected at monitoring well M -14 with the pump <br />intake located at or slightly above the middle of the screened interval and drawn directly from the formation with <br />little mixing of casing water or disturbance to the sampling zone. The enclosed report summarizes the M -14 <br />analytical results received to date for samples collected at a depth of approximately 165 feet, which is the middle <br />of the screened interval for M -14. Samples were analyzed for the on -site ground water well quality parameters <br />listed in Table 2 -4 of TR -32 as noted in the Response Plan. The sample collected on May 14, 2014 was not <br />collected utilizing the micro purge sampling technique due to a problem with the sampling pump and was collected <br />utilizing a higher pumping rate. Well stabilization criteria established for the micro purge technique was followed <br />for this sample. Additionally, we were unable to collect a sample in August 2014 due to a problem with the pump. <br />BMRI will continue to collect samples on a monthly basis for the on -site ground water well quality parameters <br />listed in Table 2-4 of TR -32 as outlined in the Response Plan. Should the Division have any questions or require <br />any clarifications regarding this correspondence, please notify me at (719) 379 -0538. <br />ncerely, <br />J lio Madrid <br />Authorized Agent <br />Battle Mountain Resources, Inc. <br />Cc: BMRI File <br />Lawrence Fiske, Newmont USA Limited <br />Tim Runnells, AESI <br />