REP41920

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 1/31/1994
• Doc Name: 1993 REVIEW 1ST SEMI ANNUAL SUBSIDENCE REPORT
• From: TWENTYMILE COAL CO
• To: DMG
• Permit Index Doc Type: SUBSIDENCE REPORT
• Media Type: D
• Archive: No

SUBSIDENCE MONITORING DATA
Semi-annual Report, January -June, 1993
Twenty Mile Coal Company, Foidel Creek Mine
Monitoring Line 4000
DISTANCE
FROM
PRE-MINING
SURVEY ELEVATIONS
SUBSIDENCE
PREDICTED
PANEL
CENTER
cn) MAP 23A
POINT PROFILE
DISTANCE
cn) NORTHING

c11~ FASTING

cn> ELEVATION

ao PREVIOUS
REPORT,
au
03/24/93
c1n
06/23/93
cn> THIS
PERIOD
cn~
TOTAL
an SUBSIDENCE

crl>
816 x052 0 383x6.700 9999.700 6890.800 6890.200 6890.100 -0.7 -0.7 0.0
765 x051 50 38296.300 10000.300 669x.500 6893.800 6893.600 -0.9 -0.9 0.0
718 x050 98 38249.000 10000.600 6898.000 6897.100 6897.000 -1.0 -1.0 0.0
667 40x9 1x9 38197.900 9999.800 6900.700 6899.600 6899.500 -1.2 -1.2 0.0
618 a0a8 198 381x8.900 10000.300 6903.500 6902.300 6902.100 -1.4 -1.a 0.0
567 4047 2x9 38098.100 10000.600 6905.900 6904.400 690x.300 -1.6 -1.6 0.0
517 x046 299 380x8.100 10000.300 6907.900 6906.x00 6906.300 -1.6 -1.6 0.0
509 a0a5 307 38039.900 9999.500 6908.100 6906.500 6906.400 -1.7 -1.7 0.0
x68 40x4 3x7 37999.300 10000.x00 6909.800 6908.200 6908.000 -1.8 -1.8 0.0
x15 40x3 401 379x6.200 9999.900 6912.900 6911.100 6911.000 -1.9 -1.9 0.0
366 x042 x50 37896.600 10000.000 6913.600 6911.600 6911.x00 -2.2 -2.2 0.0
315 4041 501 37846.000 10000.300 6914.700 6912.500 6912.400 -2.3 -2.3 0.0
282 4040 534 37812.fi00 9999.700 6916.500 6916.100 6916.000 -2.5 -2.5 0.0
208 x039 607 37739.300 10000.200 6922.500 6919.700 6919.500 -3.0 -3.0 0.0
133 x038 682 3766a.a00 10001.100 6921.500 6918.200 6918.100 -3.4 -3.a 0.0
59 4037 756 37590.300 10001.100 6924.000 6920.500 6920.400 -3.6 -3.6 0.0
0 x036 616 37531.100 10000.200 692fi.700 6923.x00 6923.300 -3.a -3.a -3.7
-15 4035 831 37515.900 10000.000 6927.000 6923.700 6923.600 -3.a -3.a -3.6
-93 x034 909 37438.000 10000.300 6932.000 6929.500 6929.400 ~ -2.6 -2.6 -3.t
-168 x033 98a 37363.200 10002.000 6937.300 6935.600 6935.600 -1.7 -1.7 -2.2
-243 4032 1058 37268.600 10000.100 6942.500 6941.500 6941.400 -1.1 -1.1 -1.4
-318 4031 1133 37213.300 10000.300 6945.600 6945.200 6945.200 -0.6 -0.6 -0.8
-367 x030 1163 37163.700 10000.200 69x9.100 6948.700 6948.600 -0.5 -0.5 -0.6
-417 4029 1233 37113.800 10000.500 6950.700 6950.300 6950.300 -0.4 -0.4 -0.4
-467 x026 1282 3706x.600 10000.300 6952.700 6952.500 6952.400 -0.3 -0.3 -0.2
-502 4027 1318 37028.800 10000.200 6953.800 6953.600 6953.500 -0.3 -0.3 -0.1
-518 4026 1333 37013.500 9999.900 6955.100 6955.000 6954.900 -0.2 -0.2 -0.1
-568 4025 1363 36963.400 10000.200 6957.500 6957.400 6957.300 -0.2 -0.2 -0.1