2017-07-05_PERMIT FILE - M2017012

• Permit No: M2017012
• IBM Index Class Name: PERMIT FILE
• Doc Date: 7/5/2017
• Doc Name: Adequacy Review Response
• From: Amazonite Mining
• To: DRMS
• Email Name: ERR
• Media Type: D
• Archive: No

6.3 SPECIFIC PERMIT APPLICATION EXHIBIT REQUIREMENTS—110 LIMITED
OPERATIONS
EXHIBIT C -Mining Plan (Rule 6.3.3)
4. Within Exhibit C, under the heading 6.3.3(1)(e),the application states that the operation is not
intended to be an intermittent operation.After further discussions with Mr. Otten and an understanding
of the proposed operation,please revise this too allow the flexibility of being intermittent should
activity levels reduce.
Response: I believe you meant to have reference Exhibit C,under the heading 6.3.3(1)(a).
Please see attached revised Exhibit C, 6.3.3(1)(a).
5. Please provide the estimated depth to which soil, suitable as a plant growth medium, will be salvaged
for use in the reclamation process,as required by Rule 6.3.3(1)(b). The Exhibit E Reclamation Plan
Map states the average thickness of replaced topsoil will be .25 inches. Salvaging .25 inches of topsoil
appears to not be feasible nor appropriate. The Division requires salvaging more growth medium and
recommends proposing a range to allow flexibility on site conditions.For example,proposing to
salvage 4-8 inches of growth medium will help facilitate better reclamation results. Even though this
increased amount of growth medium will mainly be compromised of decomposed granite, it should
contain an appropriate amount of organic matter. The Division recommends you contact the Forest
Service and/or the local office of the Natural Resource Conservation Service to help provide you with
a recommended depth of growth medium to be salvaged for use during reclamation.Please note, if you
revise the depth of salvaged growth medium,the Exhibit E map will need to be revised accordingly.
Response: Please see attached revised Exhibit E-Reclamation Plan Map.Note 3 revised,Average topsoil
changed to 1 -5 inches.Note 4 added, growth medium will be l inch minimum, 5 inches
maximum. (Per Forest Service)
Please see attached revised Exhibit C, 6.3.3(1)(b). Topsoil now stated to be 1 -5 inches, growth
medium now stated to be 1 inch minimum, 5 inches maximum. (Per the Forest Service)
Growth medium symbol with depth noted has been added to the legend of Exhibit E—Mining
Plan Map Detail 1.
6. Please clarify if growth medium will be salvaged in the area of the proposed overburden
stockpiles.
Response: Please see attached revised Exhibit C, 6.3.3(1)(c). Per the Forest Service's recommendations,
the growth medium will not be salvaged in the area of the proposed overburden stockpiles. It is
to remain in-tact.
7. Please elaborate on which kind of efforts will be made to prevent the stockpiled overburden material
from moving down slope, e.g berms, silt fencing, etc,as discussed in Exhibit C, under the heading
6.3.3(1)(c).
Response: Please see attached revised Exhibit C,6.3.3(1)(c). Silt fencing will be used.
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