REP39844

• Permit No: C1981038
• IBM Index Class Name: Report
• Doc Date: 5/10/2004
• Doc Name: 2003 Annual Subsidence Report
• From: J.E. Stover & Associates
• To: DMG
• Permit Index Doc Type: Subsidence Report
• Media Type: D
• Archive: No

February 03, 2004
Bowie No. 1 Mine Subsidence
Survey date December 24, 2003
The following table shows the coordinate value for each sutuidence station from the original
Westmoreland Survey Data to the Cragg Surveying GPS values of November 2001 to June 2003.
Coordinates for these monuments are as follows:
Note: Stations B, C and E were not surveyed in December 2003
Northing Easting Elevation
Station B Westmoreland 16921.18 8754.49 8146.79
Cragg GPS Nov 2001 16919.97 8756.43 8145.33
Cragg GPS Aug 2002 16919.91 8756.49 8145.31
Cragg GPS Dec 2002 16919.98 8756.51 8145.29
June 2003 16919.90 8756.51 8145.26
Average GPS Value 16,919.94 8,756.49 8,145.30
Station C Westmoreland 17750.57 8741.52 8148.05
Cragg GPS Nov 2001 17749.05 8743.46 8147.36
Cragg GPS Aug 2002 17749.05 8743.51 8147.25
Cragg GPS Dec 2002 17749.09 8743.57 8147.29
June 2003 17748.97 8743.56 8147.34
•
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Station E Westmoreland 18257.47 17859.89 8572.82
Cragg GPS Nov 2001 18256.67 17859.44 8573.23
Cragg GPS Aug 2002 18256.72 17859.47 8573.33
Cragg GPS Dec 2002 18256.67 17859.47 8573.21
June 2003 18256.68 17859.50 8573.23
Average GPS Value 18,256.68 17,859.47 8,573.25
A listing of the subsidence stations currently in the monitoring program, wRh coordinate values are
shown here in the following tables. Note, survey data begins with the first survey by Ute Engineering
in June of 1995. The tables list the coordinates of each station based on the fixed Westmoreland
values for Stations B,C and E, through August, 2002, followed by the values of the stations based
on the GPS surveys from November 2001 through December 2003.
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