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2008-12-09_PERMIT FILE - C1996083A (3)
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2008-12-09_PERMIT FILE - C1996083A (3)
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Last modified
8/24/2016 3:38:45 PM
Creation date
2/27/2009 9:27:07 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1996083A
IBM Index Class Name
Permit File
Doc Date
12/9/2008
Doc Name
pg 2.05-59 to 2.05-126
Section_Exhibit Name
2.05 Operation and Reclamation Plans Part 2
Media Type
D
Archive
Yes
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. 2.05.6(6) <br />Hubbard Creek could be damaged by subsidence cracks which would cause <br />it to run into the mine below. It may be possible to repair a stream that is <br />affected by a crack. First the flow interrupting crack would have to be <br />located. Then a culvert would be installed to divert the water from the crack. <br />Then the crack would be sealed with a impervious liner or other material. <br />Rockfall activity could damage and close roads and damage structures. The <br />structures at risk are the Operator's mine facilities. A large rock rolling into <br />one of the Operator's mine facilities could cause significant damage and loss <br />of life. <br />The sandstone ledge that forms Dove Cave could collapse. <br />(b)(ii) The description of the worst possible subsidence consequences has <br />determined that subsidence will not cause material damage or diminution of <br />use to the Bruce Park Dams. Therefore the Applicant has prepared seismic <br />and subsidence monitoring programs per Rule 2.05.6(6)(c). <br />• (b)(iii) The description of the worst possible subsidence consequences has <br />determined that material damage and diminution of reasonably foreseeable <br />use of renewable resources could result in the event of mine subsidence <br />within the permit and adjacent area. Therefore, the Operator has prepared a <br />subsidence control plan in accordance with Rule 2.05.6(6)(b)(iii)(B). <br />The description of the worst possible seismic consequences has determined <br />the Bruce Park landslide could cause material damage and diminution of <br />reasonably foreseeable use of the Bruce Park Reservoir. <br />(b)(iii)(B) A subsidence control plan, as described in Section 2.05.6(6)(f). <br />(c)(i) A subsidence and seismic monitoring program have been developed <br />exclusively for the Bruce Park Dam and Bruce Park landslide. One tightly <br />spaced subsidence line will be installed on the edge of panel B-11 as shown <br />on Map 27. The monitoring program will determine the commencement and <br />magnitude of subsidence movements which occur and provide a separate <br />confirmation of the angle of draw close to the Bruce Park Dam and landslide. <br />Monitoring frequency will be quarterly with more frequent monitoring <br />LJ <br />PR-11 <br />2.05 - 109 - 11 /08 <br />~ f PRov-~D <br />«~ »~o g <br />
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