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REP35277
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REP35277
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Entry Properties
Last modified
8/25/2016 12:12:31 AM
Creation date
11/27/2007 7:04:19 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Report
Doc Date
2/14/1992
Doc Name
SUPPLEMENTAL SLOPE STABILITY ANALYSIS WEST PIT EXCESS SPOIL PILE COLOWYO MINE MOFFAT CNTY COLO JOB 1
From
CTL THOMPSON INC
To
COLOWYO COAL CO
Permit Index Doc Type
Waste Pile/Fill Report
Media Type
D
Archive
No
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3. The certified reports will be available for inspection by <br />the Division and, consistent with other monitoring <br />reports at Colowyo, copies will be submitted to the <br />Division in the Annual Reclamation Reports. The reports <br />will include a description of any appearances of <br />instability, structural weakness and other hazardous <br />conditions observed during the inspection. <br />4. Certified reports addressing the underdrain system will <br />include color photographs taken during and after <br />construction, but before the underdrain is covered with <br />spoil. <br />After construction, the Section 16 Pit Fill will be monitored <br />quarterly for the following items and reports will be submitted in <br />the Annual Reclamation Reports. <br />1. The groundwater piezometer well will be established to <br />the base of the fill and will be monitored quarterly for <br />water level and the other parameters consistent with the <br />present Colowyo groundwater monitor plan. Fora proposed <br />location of the well see the attached map. <br />2. On a quarterly basis the survey monuments on the face of <br />the fill will be monitored for horizontal and vertical <br />movement. For the proposed location of the monuments, <br />see the attached map. <br />3. On a quarterly basis a certified report by a registered <br />engineer will be completed taking into consideration any <br />changes in the results of items 1 and 2 above and will <br />note any evidence of surficial slope failure or the <br />formation of springs or seeps on the face of the fill. <br />
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