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2010-08-24_REVISION - M1979181
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2010-08-24_REVISION - M1979181
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Entry Properties
Last modified
8/24/2016 4:19:59 PM
Creation date
8/24/2010 1:06:24 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1979181
IBM Index Class Name
REVISION
Doc Date
8/24/2010
Doc Name
Response to the 2nd Adequacy Review Letter dtd 8/20/2010
From
Mount Sneffels Mining Company
To
DRMS
Type & Sequence
AM1
Email Name
RCO
Media Type
D
Archive
No
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length, Pond B (next in series, in the middle) = 35', and Pond C (last in series, closest to <br />creek) = 30' [estimated volumes for each Pond would be Pond A = 750 cu ft, Pond B = <br />1,312.5 cu ft and Pond C = 1,125 cu ft]. <br />5. Page 1, Third Paragraph "Exhibit C-Mining Plan (Rule 6.3.3)": "provide a level of safety <br />and stability during occasions.... Need for a .... Physical barricade such as jersey <br />barrierts..." <br />RESPONSE: DRMS's comment has been noted and will be accommodated by the Mount <br />Sneffels Mining Company. Jersey barriers will be placed as perimeter barriers around <br />the waste rock storage areas on the lower bench of the permit operations. The barriers <br />will be placed in order to physically deter material movement and also add a measure of <br />safety to the material management process. <br />6. Page 1, Fourth and Fifth Paragraphs "Exhibit D - Reclamation Plan (Rule 6.3.4)" : <br />"Please note that bonds may be adjusted up or down, during the life of an operation..... <br />one detail that can affect the bond amount.... There are nearly 3,500 net cubic yards <br />needed for the reclamation... please comment on whether you wish this to be considered <br />part of the current bond calculation". <br />RESPONSE : The Mount Sneffels Mining Company acknowledges the fact that bonds can <br />be adjusted during the life of the mine operation. We anticipate being able to stock-pile <br />necessary fill materials towards the end of operations and will test these materials to <br />assure their inert chemical character, and begin storage on the upper bench along the <br />footprints of areas to be backfilled (the slopes adjacent to historic buildings etc.). Please <br />acknowledge that the Company will be responsible for retaining the necessary 3,500 <br />cubic yards of material for the closure activities. <br />7. Pagel, Sixth Paragraph "Exhibit D- Reclamation Plan (Rule 6.3.4)": "the updated <br />mining and reclamation maps appear to meet all requirements ...recognize... the need to <br />maintain structures to control surface drainage .... do not need to revise this map...". <br />RESPONSE: The Mount Sneffels Mining Company recognizes the need to maintain and <br />control the natural drainage pathways that cross-cut the permit area. These paths were <br />inadvertently 'sloped' to achieve the necessary 3:1 reclamation standard. We recognize <br />that the drainages will actually remain and will be contained within native or <br />constructed flow paths in order to keep water from eroding reclaimed areas. <br />d"' <br />to <br />cis <br />0.
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