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2010-04-16_PERMIT FILE - C1996083A (10)
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2010-04-16_PERMIT FILE - C1996083A (10)
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Last modified
8/24/2016 4:08:12 PM
Creation date
6/9/2010 4:36:49 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1996083A
IBM Index Class Name
Permit File
Doc Date
4/16/2010
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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• <br />• <br />2.05.6(6) <br />(f)(iii)(C) <br />The 1 West Mains go under Terror Creek and the Curecanti -Rifle 230/345 - <br />KV transmission line and support towers as shown on Map 14 -B. A limited <br />extraction zone has been established where the mains cross under Terror <br />Creek and the transmission line. A report prepared by Hamid Maleki titled <br />"Overburden Stability Evaluation at Terror Creek Crossing" demonstrates the <br />support pillars in the 1 west mains under Terror Creek will have an average <br />factor of safety range from 1.6 to 2.5. The report is presented in Volume II IA, <br />Tab 16. <br />A limited extraction zone was established along the bleeder entries in the <br />vicinity of Freeman Gulch and the vent shaft in Freeman Gulch to assure <br />ancient land slides were not reactivated by subsidence. <br />Mining in low overburden areas adjacent to the possible fault trace is <br />explained in section (f)(ii)(B) above. <br />The Operator will protect its facilities from rockfall by constructing one berm <br />at the location shown of Map 15 -2 and in accordance with the design <br />presented in Volume VII, Tab 11. No other protection measures are <br />proposed. <br />Subsidence monitoring stations are not proposed to determine when the <br />potential for rockfalls might diminish. The Operator will assume rockfall <br />hazard continues for two years after an outcrop is affected by mining. <br />(f)(iv) A detailed description of the measures to be taken to mitigate the effects of <br />any material damage or diminution of value or foreseeable use of lands <br />which may occur. <br />TR -65 <br />� FFRo vE.� <br />y� 16110 <br />A subsidence handbook is presented in Volume IIIA, Exhibit 15. This <br />handbook addresses the necessity for repair and restoration as well as repair <br />and restoration procedures for transmission lines and towers, surface <br />streams, ponds, springs, groundwater, landslides and roads and trails. <br />Additionally, any surface improvements (existing or permitted) which are <br />damaged or destroyed by subsidence will be restored, rehabilitated or <br />replaced by the Operator. If deemed necessary by the DRMS and the <br />surface management agency to provide for continuance of existing land <br />uses, land- surface contours affected by subsidence will be restored to pre - <br />mining conditions. <br />2.05-116- 02/10 <br />
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