2011-09-23_REPORT - C1980007 ‎(6)‎

• Permit No: C1980007
• IBM Index Class Name: REPORT
• Doc Date: 9/23/2011
• Doc Name: 1st, 2nd, 3rd, Quarters Geotechnical Monitoriong Rprt DRMS Review ‎(Memo)‎
• From: Tom Kaldenbach
• To: File
• Permit Index Doc Type: Stability Report
• Email Name: TAK
• Media Type: D
• Archive: No

DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St, Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
MEMO
Office of
Mined Land Reclamation
Date: September 23, 2011
To: File
Permit:
Class:
Doc. Type:
Doc. Name:
From: Tom Kaldenbach
STATE OF COLORADO
C1980007 (West Elk Mine)
Report
Geotechnical Monitoring Report
DRMS Review Memo — Q1, Q2, Q3 -09 Reports
The above - referenced reports summarize monitoring data collected from piezometers,
stone columns, and surface stations in the Main Surface Facilities area and in Sylvester
Gulch. The monitoring data show continued landslide movement in these areas.
Movement during the report period was locally faster than in recent years, and coincided
with historically high water levels in piezometers and stone columns. The reports
contain recommendations for continued monitoring in the Main Surface Facilities area
and in Sylvester Gulch.
cc: Kathy Welt, Mountain Coal Company
COLORADO
D I V I S I O N O F
RECLAMATION
MINING
— &—
SAFETY
John W. Hickenlooper
Governor
Mike King
Executive Director
Loretta E. Pineda
Director
Office of
Denver • Grand Junction • Durango Active and Inactive Mines