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DIVISION OF REc <br /> MINING&SAF^�gr►ON <br /> Greg Lewicki And Associates, PLLC �'�" <br /> 3375 N1. 11(mers Circle Phone: (720)842-5321 Fax (303)346-6934 <br /> 1 ittleton,('O 80123 L-mail: info'n leN%icki.biz <br /> ``January 29, 2019 <br /> Dustin Czapla <br /> Colorado Division of Reclamation, Mining, and Safety <br /> 1313 Sherman St, Room 215 <br /> Denver, CO 80203 <br /> RE: Box Creek Placer Mine, File No. M-2018-053,Adequacy Response I <br /> Dustin: <br /> Please allow the following and attached information to satisfy your January 18, 2018 112 <br /> Application Adequacy Review issues of concern for the Box Creek Placer Mine. <br /> 1. Pursuant to Rule 6.4.4 (f)(i), please provide the expected depth that mining will occur for <br /> each of the five proposed mining areas. <br /> The collective five proposed mining areas will be mined to the Lake Beds clay layer at represents <br /> the base of the placer gold gravel deposit. Due to the variable nature of the gravel deposit, please <br /> allow the following estimations based on approximately 200 drill hole lake bed depth values to <br /> satisfy the expected mine depth but understand that they are a very educated approximation of <br /> the maximum deposit depth. <br /> Proposed Mining Area 1 —20 feet <br /> Proposed Mining Area 2—30 feet <br /> Proposed Mining Area 3 —30 feet <br /> Proposed Mining Area 4—20 feet <br /> Proposed Mining Area 5 —30 feet <br /> 2. Pursuant to Rule 6.4.4 (g), please provide clarification regarding aggregate produced as a <br /> secondary commodity. On page D-8 of the application it states that aggregate may be <br /> sold as a byproduct. On page D-9 of the application it states that hauling will not occur, <br /> and on page D-13 it states that it is not anticipated that commercial gravel will be <br /> produced. <br /> The mention of aggregate as a secondary commodity is included in the permit application to <br /> honor the provision included in the lease between the land owner and the operator. However, as <br /> stated on pages D-9 and D-13, no hauling or sale of commercial gravel is anticipated or intended. <br /> Any changes to this plan will be submitted as a technical revision prior to release of none gold <br /> assets from the site. <br />