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Battle Mountain Resources,Inc. <br /> San Luis Project <br /> P.O. Box 310 <br /> San Luis, Colorado 81152-0310 <br /> (719)379-0798 <br /> �;���lp <br /> May 15,2019 TR35 17 N 1 <br /> LJ1Mthm pMS104 OF R££LAMAT10N <br /> MINING AND <br /> Mr. Lucas J. West <br /> Colorado Department of Reclamation, Mining,& Safety /al, <br /> 1313 Sherman, Room 215 r�nt�^ ��� y 3 <br /> Denver, CO 80203 0 eel <br /> coo <br /> Re: Battle Mountain Resources,Inc. N <br /> San Luis Project-M-88-112 <br /> Technical Revision 35 Monitoring Wells M-4R and M-15 y <br /> Dear Mr. West: <br /> The purpose of this letter is to request a Technical Revision of the groundwater monitoring program for <br /> the Battle Mountain Resources, Inc. (BMRI) "San Luis Project" (M-88-112). Groundwater wells M-4R <br /> and M-15 are point of compliance wells in the groundwater monitoring program as specified in permit <br /> revision TR-32. Wells M-4R and M-15 were constructed to evaluate and monitor groundwater <br /> constituents related to the storage and production at the process facilities. In 1997, reclamation of the <br /> milling related buildings and storage areas was initiated and the sites surrounding it remediated according w <br /> to previous technical revisions. In November 2014, CDRMS released a 35.14-acre parcel from the permit I� <br /> area which included the remaining process facility buildings that remained in place which is currently 3 <br /> deeded to the San Luis Valley Animal Welfare Society as shown in Figure 1. Given the permit release <br /> and that the former milling facilities no longer exist, BMRI requests this technical revision to remove <br /> these wells from the groundwater monitoring program. <br /> Monitoring Well M-4R <br /> Groundwater monitoring well M-4R is located within the 35.14-acre parcel of land deeded by BMRI to <br /> the Costilla Soil Conservation District in October 1997. In June 2003,Colorado Division of Reclamation, <br /> Mining and Safety (CDRMS) approved TR-32 identifying M-4R as a permanent structure and <br /> establishing M-4R be maintained as a point of compliance. In November 2014, CDRMS released this <br /> 35.14-acre parcel from the permit area. Since the U.S. Natural Resource Conservation Service no longer <br /> owns the property and well M-4R was in an area released from the permit area, BMRI is no longer <br /> sampling this well and considers it no longer a point of compliance well. <br /> Monitoring Well M-15 <br /> Groundwater monitoring well M-15 is located in the current permit area and was constructed in 1996. It <br /> is located between the former milling operations buildings and the lined tailing facility as shown in Figure <br /> 1. Well M-15 was originally put in place for monitoring of potential constituents as a result of the <br /> operations at the milling facility which exhibited groundwater flows toward the lined tailing facility. In <br />