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REP19577
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REP19577
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Entry Properties
Last modified
8/24/2016 11:48:15 PM
Creation date
11/27/2007 2:41:10 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Report
Doc Date
8/31/2007
Doc Name
1st Half 2007 Subsidence Report Review Letter
From
Twentymile Coal Company
To
DRMS
Permit Index Doc Type
Subsidence Report
Media Type
D
Archive
No
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Item (structures <br />in this portion of <br />the NMD Predicted impact <br />in permit <br />a lication <br />Observed impact <br />Prediction accurate? <br /> See page 2.05- <br /> 184.7 of the PAP <br /> and page 4 of <br /> and Exhibit 7e-7. <br /> Vertical <br /> subsidence up to Four of the 48 pylons of the Tri- <br /> 36 inches (PAP) State Craig-Hayden-Steamboat The predicted vertical <br />Craig-Hayden- and 3 feet Electric Transmission Line had subsidence was fairly <br />Steamboat (exhibit) was settlement. None was over the 36 accurate. Subsidence was <br /> <br />Electric predicted on the inches predicted. The most was o <br />30 /o under that predicted.. <br />Transmission Craig-Hayden a <br />25 inches; 70 /o of that predicted Horizontal movement and <br />Line Steamboat power (see the Survey Data section of damage predictions were <br /> line. Small the report). Horizontal <br /> displacements in displacements were small. There accurate. <br /> horizontal was no debilitating damage. <br /> directions were <br /> predicted. No <br /> debilitating <br /> damage was <br /> redicted. <br /> Pooling of water A short section of Fish Creek was <br />Fish Creek, <br />(Exhibit 7e-2 of within the angle of draw, but no <br />and Fish Creek <br />permit) PAP significant ponding effects were Yes <br />AVF <br />page 2.05-184.8 observed (see Page 2 of the <br /> re ort). <br />
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