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REP48888
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REP48888
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Entry Properties
Last modified
8/25/2016 12:52:42 AM
Creation date
11/27/2007 12:25:18 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Report
Doc Date
12/15/2004
Doc Name
1st Half 2004 Subsidence Report Review Letter
From
DMG
To
Twentymile Coal Company
Permit Index Doc Type
Subsidence Report
Media Type
D
Archive
No
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beneath any established approximately 1,800 <br />monument or structure. feet ahead of the face, <br /> and continued until the <br /> face was approximately <br /> 3,200 feet ast station <br />( )( )(.)O <br />2.05.6 6 c t E PAP, pages 2.05-185 <br />and 2.05-186. Reports <br />An extension of the submission <br />Results of the <br />are to be submitted 60 date from August 29 to <br />monitoring program days after the end of a Yes September 20, 2004 was <br />shall be submitted to the period. The format of approved. The report was <br />Division at least semi- the report is at Exhibit submitted under a letter dated <br />annually. 34 of the PAP. September 13, 2004. <br />The monitoring program shall be designed to extend for a time, beyond cessation <br />of mining in any area, consistent with the need for verification of the subsidence <br />prediction. <br />Conducted sufficient <br />post-mining monitoring <br />to verify subsidence <br />prediction <br />2.05.6(6(c)(i))(F) <br />Yes <br />PAP, page 2.05-185 <br /> In compliance based on <br /> observations below. The shapes <br />Accurately predicted of subsidence profiles are very <br />subsidence 2.05.6(6)(d)(i) Yes similar, maximum subsidence <br />. shifred approximately 200 feet <br /> horizontally, and approximately <br /> 15% more than anticipated. <br />There was no imminent <br />or actual material <br />damage or diminution of <br />2.05.6(6)(d)(i) <br />Yes In compliance based on <br />use of renewable observations below. <br />resource lands or <br />structures <br />2 <br />
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