REP08031

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 5/18/1998
• Doc Name: 1997 Annual Subsidence Report ‎(Year-End)‎
• From: Mountain Coal Company
• To: DMG
• Permit Index Doc Type: Subsidence Report
• Media Type: D
• Archive: No

WEST ELK MIM1'
SUBSIDENCE POINT# EI E2 E3
____ ______ ___________ __________ _ __ __ ___ _______ ___
PRE-MINING NORTHING 395619.34 395413.08 395606.39
B SEAM FASTING 74430fi6.29 16431fi6.15 1443265.63
SURVEY#i ELEVATION 7476.75 7648.15 7638.49
ocr. 19s1
PRE-MINING NORTHING _395619.31 395413.02 39540fi.29
B SEAM FASTING id43066.i1 14431fi5.88 1443285.38
SURVEY #2 ELEVATION 7476.87 7448.23 7438.82
JUNE 1992
___________ ___________ ___________ ______ ____ ___ _______
___________ ___________ ___________ ___________ ___________
AVERAGE OF NORTHING 38561933 395613.05 39560634
PRE-MINING FASTING 146306fi.20 14x3166.02 1443265.57
B-SEAM ELEVATION 7476.81 7448.19 7438.56
POST-MINING NORTHING 395618.96 395612.57 395405.05
B-SEAM FASTING 1463066.27 1443165.97 1443265.68
SURVEY#3 ELEVATION 7476.98 7668.39 7638.77
OCT 1992
POST-MINING NORTHING 395418.fi7 395412.40 395405.56
8-SEAM FASTING 14x3066.21 1443165.87 1463265.62
SURVEY #4 ELEVATION 7477.41 7648.82 7439.23
JUL. 1993
POST-MINING NORTHING _ 395419.18 395472.86 395406.07
B-SEAM FASTING 144306fi.18 1643165.94 164326555
SURVEY#5 ELEVATION 747679 7448.70 7438.58
OCT. 1993
___________ ___________ ___________ ___________ ___________
___________ ___________ ___________ ___________ ___________
POST-MINING NORTHING 395419.02 395412.70 395605.91
B-SEAM FASTING 1443065.66 1443165.59 1443265.20
SURVEY #6 ELEVATION 7676.79 7648.20 7638,61
JUL. 1996
POST-MINING NORTHING`- x 395619.53: 395413.21 395406.25
BSEAM FASTING 1643065.98 7443165.84 1443265.80
SURVEY#7 ELEVATION 7476.39 746775 7438.72
OCT. 7996
POST-MINING NORTHING 39541856 395411.84 - 395406.74
B-SEAM FASTING 1643066 03 1443165 76 1663265 d5
SURVEY 178 ELEVATION 7477.15 7448.54 7430.90
AUG. 1995
POST-MINING NORTHING '395419.19 395612.90 395a060fi
B-SEAM FASTING 1443065.60 144316527 1443284.69
SURVEY Stl ELEVATION 7677.33 7448.71 763912
OCT. 1995
POST-MINING NORTHING 395419.10 ?95412.82 395406.08
8-SEAM FASTING 146306566 1443163.61 144326492
SURVEY #10 ELEVATION 7677.62 7469.04 7439.45
JULY 1996
POST-MINING NORTHING 395419.27 395412.92 _x 39540630
8-SEAM FASTING 7443065.70 1443165.48 1643265.06
SURVEY#71 ELEVATION 7477.56 7448.99 7439.39
OCT. 1996
E BSEAM SUB
E4
395399.05
1643365.85
7631.09
395399.08
f 463365.89
7437.19
x== 395399.87
1443365.87
7431.16
395399.26
1443365.69
7631.32
395399.03
1463365.65
7431.81
395399.62
14d33fi5fi4
7431.15
395399.46
1443365.29
7631.79
395399 96
1443366.60
7430.70
395398.07
1443365 44
7431 48
- 395399 72
7443365.02
7431.70
~~395399.80
1443365.33
743203
395399.75
1443365.26
7431.99
SIDENCE UPDi
ES
395396 2)
1 d43<6669
746039
39539402
f4a3a6i.52
7440.50
=xx 395396.15
1443465.81
7440.45
395393.36
1443465.05
7640.64
395393 41
1443465.05
7441.16
c 395393.95
1443dfi5.20
7640,50
395393.52
7643465.53
7440.53
395394.12
1663465.03
7440.02
- 395392.03
1443465.79
7440.62
- 395393.80
1443465.02
7441.02
395394.30
1443465.17
7441 35
:_= 395394.16
7443665.05
7441.29
ATE THROUGH OCTOBER 1997
NO N1 N2 N3 Nd NS
396398.96 396490.56 39fi598.06 396fi9026 3%798.3fi 396897.88
1x42073.70 1442080.29 1442086.65 1442093.35 1462099.66 1442106.48
7881.89 7876.56 7872.69 7872.67 7872.52 7875.32
396388.79 396498.48 39fi598.00 x 396698.09 396790.27 396897.08
1462073.85 146208036 1442086.01 1462093.52 7442099.69 1642106.46
7081.86 7B7fi.54 7872.70 7872.69 7872.52 7875.30
===396398.88 =_=39649852 ~- 996598.03 x==396698.18 'x~3%798.32 xx~3%897.88
1442073.78 1442080.32 144208833 164209544 7642099.60 1442106.47
7801.88 7076.56 7872.70 7872,68 7872.52 7875.31
396398.52 396498.19 39659766 396697.53 398797,58 396897.12
1642073.60 1442079.87 1da208fi.18 1442092.90 1442099.23 1442106.15
7880.9fi 7875.13 7870.64 7870.10 7069.61 7872,65
396396 60 396496.53 396598.13 396fi%.22 396796 45 396895.76
1642072.09 i4d207H.55 1442084.48 1462091.76 1442098,17 1442105.35
7876.50 7871.24 7067.47 7867 47 7867.55 7871.11
396396.51 x 396496.53 3965%.O6 3966%.i2 3%]%.39 3%895.95
1442070.97 1442077.63 1442004.10 1442090.73 1442097.33 7442104.45
7875.01 7870,56 7866.71 786684 78fi6.9d 7870.55
- 396396.40 396496.20 396595 84 396fi95.80 396796.39 396895.77
1442070.61 144207691 1442083.31 1442090.40 1442097.33 1462703 fit
7875.78 7870.54 786fi.70 7866.82 7866.93 7870.55
- 396396 63 396496 Sd 396596 04 396696.24 _ 3967%.39 3%095.Bfi
144207030 1442076.80 1442083.29 164209000 14420%.50 16427 03.79
787502 7870.54 786fi.71 7866.81 788692 7870.54
- 396396.29 396496.34 396595.48 396595.05 39679612 3%095.58
1442070.16 144207669 7442003.20 1442090.13 144209fi.53 7442703.80
7875 06 7870 fit 7866 03 7866 94 7867 OS 7870 fi3
396396.35 39649822 396595.85 39fi695 89 - 3967%.12 396895.77
1442070.31 1442076.85 1442003.26 1462090.13 144209652 7642103.70
787597 7870.68 7886.85 7866.% 7857.08 7870.67
3%396.37 396496.32 396595.84 396695.94 39879617 396895.75
14x2070.06 7442076.87 1462003.79 1442089.95 144209843 1442103.60
7875 94 7870.73 7866.92 7867.03 7867.14 7870.72
396396 40 396493.32 396595.90 396696.04 ~ 396796.21 396095.73
1642070.14 1442(176.69 7442003.20 1442089.89 1442096A2 1442103.64
7875.93 7870.70 7B6fi.87 7866.96- 7667.07 7670.66
POST-MINING NORTHING 39541599 39541265 39540572 395399.14 395393.33 396396.45 396493.38 39659591 396fi95.99 396796.24 396895.78
B-SEAM FASTING 144306572 1663165.37 1663266.% 7663365.16 1943465.1fi 1442070.24 7462076.84 14x2083.24 144209023 14820%.6fi 1442103.81
SURVEY #12 ELEVATION 7477.44 7649.16 7439.55 7432.14 746166 7875.09 7870.61 7866.01 786fi.93 7067.04 7870.60
JULY 1997
POST-MINING NORTHING 39541893 39541262 395405.76 395399.19 395394.70 ` 396396.55 396496.40 396595.94 39669603 ` 39679632 396695.95
B-SEAM FASTING 14x3065.90 1463165.68 1443265.28 1443365.50 1643465.29 ta42W0.24 14420]681 1642083,23 1442090,09 1442096.56 1442103.83
SURVEY#13 ELEVATION 747772 7669.08 7439.54 7432.13 7441.31 7875.96 7870,71 786fi.B7 78fi7.12 7867.00 7870.69
OCT. 1997
SUBSIDENCE (CURRENT) ___ ......x =_____ ...x .....x..._. __ ...x.=:_ x__~__:___= x..x..o..=. x ;____-_ =x.......x. x.=_ ...x....x..=_____ :=x=__=____
(mm JUly 199770 OCt 1997 -0.28 0.08 0.01 001 O.tS -0.OT -0.10 -0.06 -0.19 0.04 -0.09
(-) Intlitaies Rise m Eevabon -
_x___x_x_ _ _,______ _ ~__ ______~ x__________ _________x _-c_____x= x_____~__x_ _______________ __ __________________ _________________ ___________________ ____________________ ___~__~_____
TOTAL SUBSIDENCE -0.91 -0.69 -0.98 -0.99 -0.87 591 5.83 5.82 5.56 5.52 4.62
lrbm average prnmining survey
ro Cc[obe! 1997
__o..=___ o. x.-=
AV N. -10192 N. _==c....e_. o.o
0.36 ,x_x..e e.
048 o_o.coc __ x
0 d9 .m __ _
0.61 _~__ _____ _____
0.79 ___________ ________
0.35 __________ _o_
0.33 _ e_o. o_
0.37 = ac.:
0.65 __=.e==o== ___. x
0 74 ;__
0.76
AV E. - 10192 E. -0.07 0.05 -0.3] 0.18 0,55 0.17 0 44 0,15 0.54 0 45 032
AV EL - 1052 EL -0.17 -0.20 -0.22 -0.10 -0.20 0.91 1.41 2.05 2.58 2.91 2.66
1052 N -753 N, 0.29 0.17 0.29 0.23 -0.OS 1.92 1.66 1.53 1.31 1.73 1.36
10192 E. - 753 E. 0.06 0.10 026 -0.16 000 1.51 1.32 1 70 1.1 d 1 O6 0 80
1052 EL - 7193 EL -0.43 -0.43 -0.46 -0A9 -0.50 a 46 3.89 3.17 2.fi3 2.06 1.56
Page 1 SUeCG97B.%LS