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2018-12-11_REVISION - C1981010
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2018-12-11_REVISION - C1981010
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Entry Properties
Last modified
12/12/2018 11:22:05 AM
Creation date
12/12/2018 10:29:02 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Revision
Doc Date
12/11/2018
Doc Name Note
Memo
Doc Name
Adequacy Review #2
From
Tabetha Lynch
To
Robin Reilly
Type & Sequence
PR9
Email Name
RAR
TNL
Media Type
D
Archive
No
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Tabetha Lynch, DRMS <br />Page 2 <br />12/11/2018 <br /> <br /> <br />PR 9 does not include additions to geologic information as stated in the stipulation above. Please <br />update Sections 2.7.2 and 2.7.3 of the Trapper Mine permit application package with the <br />information required by Rule 2.04.6(2)(a) and (b). <br /> <br />Note: I did not review the PR9 revision against all requirements of these stipulations. <br /> <br />Trapper Response to Comment 5: Trapper is not requesting to mine coal within the PR -7 <br />Permit Expansion Area. We are only requesting limited surface disturbance to lay highwalls <br />back, to slope reclaimed highwalls and to potentially construct coal and overburden haulage <br />roads. Trapper currently does not have the rights to mine east of the Federal Lease C-079641 <br />boundary. Trapper reviewed the geologic information that was included in section 2. 7.2, <br />Overburden Characteristics. This information was updated and approved with the PR -8 baseline <br />submittal. Section 2. 7. 3, Coal Characteristics, was also reviewed and we feel it is representative <br />of the conditions expected on the eastern border of Federal Lease C-079641. A review of Section <br />2.7. 1, Structural Geology, was completed as well and that section describes a far broader area <br />than is included in the Trapper Permit Area. Trapper believes that the information included in the <br />current permit adequately describes the field conditions to be found in this area. <br /> <br /> <br />DRMS December 2018 Response: If no additional mining is being proposed in the PR-7 <br />expansion area, the Division accepts Trappers response. The stipulation should remain in place <br />at this time and be reevaluated upon future revisions that are proposing to expand mining into the <br />above referenced area. <br /> <br />Rule: 2.04.7(1) and (3)-(4) – Hydrology Description <br /> <br /> <br /> Hydrology descriptions and Mitigation of Impacts of Mining for the N-pit redisturbance <br />area, is not adequately described as required by Rules 2.04.7(1)(b) and 2.05.6(3)(a) and <br />(b). <br />o Please provide additional text specific to the N-pit. This should meet the <br />requirements of the above stated rules and specifically address these rules in <br />relation to anticipated drawdown due to pit dewatering, anticipated rebound of <br />groundwater elevations, affects to surrounding wells and springs, ground water <br />quality, and storage and recharge capacity. This is a redisturbed area, however the <br />disturbance is going deeper than previously mined and will create a larger volume <br />of disturbance and increased permeability. <br />
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