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REP23653
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Entry Properties
Last modified
8/24/2016 11:55:57 PM
Creation date
11/27/2007 3:46:51 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Report
Doc Date
11/1/2005
Doc Name
1st half 2005 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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initiation ofmining 17) was surveyed <br />beneath any established approximately 1,400 <br />monument or structure. feet ahead of the face, <br /> and continued until the <br /> face was approximately <br /> 4,500 feet past the <br /> station <br />2.05.6(6)(c)(i)(E) PAP, pages 2.05-185 <br />Results of the and 2.05-186. Reports <br /> are to be submitted 60 The due date is August 29, 2005. <br />monitoring program <br />shall be submitted to the days after the end of a Yes The report was submitted under a <br />Division at least semi- Period. The format of letter dated August 8, 2005. <br />annually. the report is at Exhibit <br /> 34 of the PAP. <br />The monitoring program shall be designed to extend for a time, beyond cessation <br />ofmining 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 PAP, pages 2.05-181.9, 2.05- <br />184.7, and 2.05-184.8 for power <br />lines and railroad; 2.05-181.]0 <br />and 2.05-184.8 for Fish Creek <br /> In compliance based on <br /> observations below. The shapes <br /> of subsidence profiles are very <br /> similar to former predicted and <br />Accurately predicted measured profiles. A graph of <br />subsidence. 2.05.6(6)(d)(i) Yes predicted and measured <br /> subsidence is attached. As before, <br /> the measured settlement curve is <br /> offset to that predicted by about <br /> 200 feet to the south (towazds the <br /> reviously mined areas) <br />There was no imminent <br />or actual material <br />damage or diminution of 2.05.6(6)(d)(i) Yes In compliance based on <br />use of renewable observations below. <br />resource lands or <br />structures <br />2 <br />
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