REP44434

• Permit No: C1981038
• IBM Index Class Name: Report
• Doc Date: 3/8/2006
• Doc Name: 2006 Annual Subsidence Report
• From: J.E. Stover & Associates
• To: DRMS
• Permit Index Doc Type: Subsidence Report
• Media Type: D
• Archive: No

December 28, 2006
Bowie No. 1 Mine Subsidence
Survey date December 27, 2006
SUBSIDENCE MONITORING SURVEY TABULATION
PITKIN MESA PIPELINE -STATION PL#7
ROOF BOLT
SURVEY DATE NORTHING FASTING ELEVATION -DOWN+UP
Ute Engineering Survey Data based on fixed Westmoreland Values
06-05-95 16986.96 10388.77 7504.95 -
10-10-95 18986.93 10388.67 7505.09 +0.14
OS-02-96 16986.97 10388.76 7504.92 -0.17
06-17-96 16986.93 10388.66 7505.16 +0.24
09-10-96 16986.97 10388.68 7506.10 +0.94
08-12-97 16986.97 10388.63 7504.99 -1.11
11-11-97 NOT TIED THIS SURVEY
Cragg Surveying Survey Data based on fixed Westmoreland Values
07-10-98 NOT TIED THIS SURVEY
11-23-98 16986.72 10388.71 7506.02 +1.03
06-17-99 16986.65 10388.76 7505.92 -0.10
09-17-99 16986.77 10388.72 7505.82 -0.10
06-23-00 16986.74 10388.72 7505.92 +0.10
12-04-00 16986.81 10388.78 7505.76 -0.16
11-20-01 16986.80 10388.76 7505.97 +0.21
08-23-02 16986.86 10388.71 7506.09 +0.12
Maximum
Minimum
Range
Cragg Surveying
GPS Survey Data
PL-7
11-20-01
OS-23-02
12-10-02
06-20-03
12-24-03
08-10-04
12-24-04
08-30-05
12-20-05
06-20-06
12-27-06
Average Value
16986.97 10388.78 7506.10 +1.03
16986.65 10388.63 7504.92 -1.11
0.32 0.15 1.18
16985.73 10390.69 7504.51 -
18985.75 10390.71 7504.61 + 0.10
16985.72 10390.68 7504.56 - 0.05
16985.72 10390.69 7504.66 + 0.10
16985.71 10390.67 7504.60 - 0.06
16985.70 10390.71 7504.64 + 0.04
16985.72 10390.71 7504.60 - 0.04
16985.71 10390.70 7504.71 + 0.11
16985.73 10390.70 7504.55 - 0.16
16985.63 10390.78 7504.69 + 0.14
16985.72 10390.75 7504.62 - 0.07
16985.71 10390.71 7504.61
S2-9