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2011-05-06_PERMIT FILE - P2011009
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2011-05-06_PERMIT FILE - P2011009
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Last modified
8/24/2016 4:33:21 PM
Creation date
5/10/2011 7:42:47 AM
Metadata
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Template:
DRMS Permit Index
Permit No
P2011009
IBM Index Class Name
PERMIT FILE
Doc Date
5/6/2011
Doc Name
Operator's response to incompleteness letter
From
Grayling LLC
To
DRMS
Email Name
RCO
Media Type
D
Archive
No
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ea <br />features are roughly conceptual due to the lack of precise surveying information. We intend to <br />correct this data gap as soon as the site is accessible. <br />Item 6 - The working pad area and portal area to be affected by these proposed efforts are entirely <br />contained within the two patented claims. The extent of the 'perimeter of the working surface area' <br />was corrected within Figures 3 and 4 to reflect this. As mentioned in Item 4 - four copies are <br />provided. <br />Item 7 - The reasons for modifying the slope are to assist in the stabilization of the slope materials <br />above (which appear unstable) and to allow for surface placement of these tunnel materials which <br />may need to be removed from the underground entirely in order to allow for continued work <br />(unknown at this time). The operator would like the option to have surface area available for <br />materials placement. Review of the site conditions indicates that amending the slope may help <br />stabilize the above materials. Also, there is sufficient room in this area to accommodate the materials <br />placement and NOT affect the road prism. The proposed angle is likely 3:1. <br />Item 8 -The proposed tunnel which will comprise the surface placed materials, is to traverse the host <br />andesite material in order to locate the target vein. The host rock has demonstrated to be inert and <br />non-acid generating as compared to the 'ore, or vein' material which is mineralized. As previously <br />mentioned, all ore bearing material is to be tested and managed - NOT disposed of on the surface. <br />Fortunately, the mineral characteristics of this setting are very visual and can be identified easily to <br />ensure proper material management. Furthermore, as per our agreement with the County Road and <br />Bridge - any surface placed material of use will be routinely tested for mineral and acid generating <br />character. These records will be shared with DRMS as they are obtained. <br />Item 9 - The water emerging from the pipe appears to have both ground- and surface- origins as the <br />flow is affected by snow melt. Flow decreases to a baseline rate of release once melt has been <br />completed. The underground workings within the Lower Mountain Top are relatively extensive <br />having been worked for decades. A series of underground sumps and ditches exist which route water <br />away from working areas. The proposed work which is focused to isolate a particular vein system will <br />be in an area where there is some water, but it is being managed and largely retained underground - <br />therefore the impacts to the water quality are anticipated to be 'acute' (short term due to turbidity <br />largely). Fortunately, the site is already set up to accommodate this type of water quality disturbance <br />with the placement of the discharge pond. The pond was built and sized to accommodate the <br />previous discharge permit (which is being renewed) which manages these type of water quality <br />changes. With the discharge pond in place, any water quality disturbance that reaches the surface <br />will be controlled and monitored. <br />Item 10 - Comment noted. Please refer to response provided in Item 9 above. <br />Item 11- Comment noted. A bond will be provided once the amount has been established. <br />N <br />N <br />a
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