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2009-11-13_GENERAL DOCUMENTS - C1982056
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2009-11-13_GENERAL DOCUMENTS - C1982056
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Last modified
8/24/2016 3:56:57 PM
Creation date
11/20/2009 2:13:32 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
GENERAL DOCUMENTS
Doc Date
11/13/2009
Doc Name
Mining Plan Decision Document Federal Lease COC-72980
From
Twentymile Coal Company
To
DRMS
Permit Index Doc Type
Other Permits
Email Name
JHB
Media Type
D
Archive
No
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• Environmental Consequences, Proposed Action: Subsidence of the ground surface likely <br />would cause localized gradient changes on soil surfaces and within ephemeral stream <br />channels. Additional sediments could be generated in the short term from overland flow <br />across soil surfaces. However, localized deposition is expected to occur within the stream <br />channel, except during high runoff events. Slightly higher levels of TDS and Total <br />Suspended Solids could result from sediment transport in the short term. No sediment dams <br />are present downstream of the area to be subsided. <br />Environmental Consequences, No Action: Surface water quality would not be affected. <br />Mitigative Measures: None <br />Name of specialist and date: Ole Olsen, 5/2/08 <br />WETLANDS/RIPARIAN ZONES <br />Affected Environment: No wetland or riparian systems are known to occur on the private <br />lands overlying the proposed coal lease and subsequent mining that could occur. <br />Environmental Consequences, both alternatives: None <br />0 Mitigative Measures: None <br />Name of specialist and date: Ole Olsen, 5/2/08 <br />WILD & SCENIC RIVERS <br />Affected Environment: Not present <br />Environmental Consequences, both alternatives: Not Applicable <br />Mitigative Measures: Not Applicable <br />Name of specialist and date: Jeremy Casterson, 6/12/08 <br />WSAs, WILDERNESS CHARACTERISTICS <br />Affected Environment: Not present <br />Environmental Consequences, both alternatives: Not Applicable <br />Mitigative Measures: Not Applicable <br />0
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