REP36561

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: 1993 December to June1994 Subsidence Monitoring Report
• Permit Index Doc Type: SUBSIDENCE REPORT
• Media Type: D
• Archive: No

SUBSIDENCE MONITORING DATA
Semi-annual Report: December, 1993 -June, 1994
Twenty Mile Coal Company, Foidel Creek Mine
Monitoring Line 1000
n
U
07/30/94
DISTANCE
FROM PRE-MINING
SURVEY
QUARTERLY SURVEYS
SUBSIDENCE PREDICTED
SUBSIDENCE PREDICTED
SUBSIDENCE
PANEL
START
(nl MAP
POINT PROFILE
DISTANCE
l6) NORTHING

IR) EASTINl3

(R) ELEVATION

(n) 1sl OIr
03/24183
(R) 2nd Otr
08123/03
(R) 3rd Otr
09/30/83
(RI 4th Otr
12/27/83
(R) 141 Otr
03/14/84
(h) 2nd Olr
06/08/84
Ihl LAST
PERIOD
lR) THIS
PERIOD
(n)
TOTAL
lR) AFTER 2LLW
MINED
IR) AFTER 1LLW
MINED
(R)
-322 1028 0 38613.5 7777.4 6806.8 6806.8 8808.8 8808.7 8808.7 6806.7 6806.7 -0.1 -0,1 -0.1 0 -0.2
-273 1027 48 36613.7 7828.0 6780.3 8790.3 8780.3 6790.2 8780.2 8780.2 8790.2 -0.1 -0,1 -0.1 0 -0.2
-223 1028 BB 38813.9 7875.8 87D0.3 8780.3 8780.3 8780.2 6780.1 8780.1 8700.1 -0.2 -0,2 -0.2 0 -0.3
-173 1025 148 38613.8 7828.2 8780.2 6780.2 8780.2 8780.1 8788.8 6780.8 8788.8 -0.3 -0,3 -0.3 0 -0.4
-122 1024 200 38613.6 7877.0 6789.1 6788.1 8780.1 8788.1 8788.7 8788.7 8788.7 -0.4 -0,4 -0.4 0 -0.6
-74 1023 240 36813.8 8025.2 8788.8 8788.8 6788.8 8788.8 6788.3 8788.3 8788.3 -0.8 -0,8 -0.8 0 -0.7
0 1022 322 36813.8 BODB.D 6780.5 8780.6 8780.5 8780.6 6788.3 8780.3 878B.d -1.2 -1,1 -1.1 0 -1.1
T7 1021 398 36814.5 8175.8 8788.8 8780.0 8789.8 8789.8 6788.0 8788.0 8788.0 -1.8 -1,8 -1.B 0 -1.8
152 1020 474 38874.3 8251.1 6805.8 BB05.D 8805.8 8805.8 BB02.8 8802.8 8802.8 -3.0 -3.0 -3.0 0 -2.7
227 1019 549 38814.5 8326.1 8820.5 8820.5 6820.5 8820.5 8818.8 8818.8 8818.8 -3.7 -3,7 -3.7 0 -3.8
302 1018 823 38873.7 8400.8 11831.8 6831.8 8831.8 8631.8 8827.5 8827.5 8827.5 -4.3 -4,3 -4.3 0 -4.1
377 1017 899 38613.8 8478.2 8840.2 6840.3 8840.3 8840.2 8835.6 6835.5 8835.6 -4.7 -4 7 -4.7 0 -4.8
452 1016 773 30814.9 8550.4 8843.5 8843.5 8843.5 8843.4 8838.8 8838.5 6838.5 -4.B -5,0 -5.0 0 -5.0
527 1015 048 36815.3 8825.4 8849.5 8848.7 8849.6 6848.8 0844.4 8844.3 8844.3 -5.1 -5,2 -5.2 0 -5.3
600 1014 022 38814.7 8899.0 8880.3 8860.3 8860.3 6860.3 6855.0 8855.0 8854.8 -5.3 -5,6 -5.4 0 -5.4
877 1013 098 38813.5 8775.7 6888.2 8808.2 8868.2 6868.2 8883.0 !1883.0 6882.8 -5.2 -5,3 -5.3 0 -6.5
809 1012 1021 38814.!1 8788.2 8869.7 8868.8 6809.8 8888.8 8884.6 8884.5 0884.5 -5.1 -5.2 -5.2 0 -5.8
802 1011 1123 36614.4 BB00.8 8877.0 8877.6 8877.8 6677.0 8872.4 8872.4 6872.4 -5.2 -5.2 -5.2 0 -5.8
802 1010 1224 38814.0 8001.1 BBBB.B 8886.8 8888.8 8088.8 8881.8 8881.6 B8B1.0 -5.2 -5.2 -5.2 0 -5.8
1004 1009 1328 38814.5 9102.8 6902.7 8802.7 8902.7 8802.7 B8D7.5 8887.5 6887.5 -5.2 -6.2 -5.2 0 -5.8
1708 1008 1427 38814.0 8204.4 BD74.4 8914.4 BB14.4 BB74.4 BD08.3 8800.3 BBOB.3 -6.1 -6.1 -5.1 0 -6.8
1202 1007 1524 30814.1 8300.8 8823.3 8823.3 6923.3 6923.3 6978.3 8818.2 BB78.2 -5.0 -5,1 -5.1 0 -5.8
1301 1008 1822 38874.1 8388.4 0924.8 8824.0 8024.0 8824.8 8810.8 8818.8 8818.8 -5.0 -5,1 -6.1 0 -6.8
1401 1005 1723 38813.8 D500.2 8827.3 BD27.3 BB27.3 BB27.3 BB22.3 0922.2 BB22.2 -5.0 -5,1 -5.1 0 -5.8