REP21798

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 5/19/1997
• Doc Name: MOUNTAIN COAL CO WEST ELK MINE PN C-80-007 1996 ANNUAL SUBSIDENCE REPORT YEAR END REPORT
• From: MOUNTAIN COAL CO
• To: DMG
• Permit Index Doc Type: SUBSIDENCE REPORT
• Media Type: D
• Archive: No

WEST ELK MINE 8-SEAM SUBSIDENCE UPOATE THROUGH OCTOBER 7986
SUBSIDENCE POINTC Ei EI E3 E4 ES NO N1 NZ N3
PRE-MINING NORTHING 39541934 39541309 3954%.39 395399.85 3%391.27 386398.% 3%d%.56 3%59806 3%698.28
B SEAM FASTING 7443%6.29 1443166.15 1443265.63 1443365.85 143165.69 7442073.70 1442080.29 144708665 144209335
SURVEY 91 ELEVATION 7476.75 7448.15 743849 7431.09 7440.39 7887.89 7876.51 7872.69 7872.67
OCT. 1997
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PRE-MINING __________
NORTHING ____ ______ _
395119.37 ___ ______ .
395413.02 .
z...==
3954%.29 s....=_ =
39539988 =
z....=
3%394.07 s...=
3%398.79 _
3864%48 _
3%598.00 v....=_
3%698.09
B BEAM FASTING 1443066.11 1443165.88 144326538 144336589 1443465.52 7447073.85 1442180.34 1142%6.01 142093.52
SURVEY i7 ELEVATION 7476.87 7448.23 743863 7431.19 74405D 7881.% 787651 7877.70 787769
JUNE 1997
AVERAGE OF NORTHING 395419.33 395413.05 395406.31 3953%B7 395391.15 396398.88 3964%.57 3%598.03 396698.18
PRE-MINING FASTING 1443066.20 19437%.07 744326551 143365.87 1413165.67 1142073.78 14X180.32 14670%.33 1442093.4
B-SEAM ELEVATION 7476.87 7448.19 7438.56 7437.11 744045 7881.88 787651 7877.70 7872.68
POST-MINING NORTHING 395418% 395472.57 395405.85 395399.76 3%393.36 39639857 396498.18 3%59766 3%697.53
&SEAM FASTING 14430%77 1443165.97 14432fi5.B8 1443365.69 14d31fi5.05 1447073.60 1442079.87 1442086.18 1442097.%
SURVEY 93 ELEVATION 7476.98 7448.39 743877 7431.37 744061 7880.% 7875.13 7870.64 7B70.t0
OCT. 1997
POST-MINING NORTHING 395/1867 39541240 395405.56 39539903 395393.41 39fi39660 3964%53 3965%13 39%%.Z2
BSFAM FASTING 744306677 744376587 1443765.62 1443385.85 1443465.05 147D72.09 1442078.55 14208/48 7447(191.76
SURVEY4 ELEVATION 7477.41 744887 743923 7431.81 7441.11 7876.50 7871.21 7867.47 7867.47
JUL 1993
N4 NS
c 3%79636 ~~~ 396897.88
1442099.66 14477%.48
7872.52 7875.32
3%788.27 3%897.88
1442093 fig 74421 %.46
7872.52 7875.30
3%788.32 3%897.88
1442099.68 14421%.17
7872.52
=~~ 787531
3%797.58 396897.72
1442099.73 74121%.15
7869.61 7872.fi5
3%7%45 396895.7fi
164X98.77 744770535
7%755 7877.11
________ __ ___________ ___________ ___________ _________ _ _ __________ ___________ ___~_____ _= c=_ ___ ___________ ___________ ___________ ________
POST-MINING NORTHING 395419.18 395412.66 3954%.07 395399.62 395393% 3%3%.51 3964%53 3%5%O6 3%6%.77 3%7%.39 396695.85
&SEAM FASTING 7443066.18 14431fi5.91 1443X5.55 1443%5.61 1443465.21 142)70.97 1442077.63 1442081 10 1442090.73 144709733 1442101.45
SURVEY 715 ELEVATION 7476.79 744878 7438.58 7431.15 T410.W 787581 7870.56 7B%.77 7666.81 7B%91 767055
OCT. 1993
POST•MINING NORTHING 395119.02 395112.70 395405.91 395399.dfi 395393.52 3963%40 3964%.21 3%595.81 39%%80 3%7%39 39fi895.T7
E-SEPA1 FASTING 1443%S.Bd 1443165.59 744321520 143365.29 14d3dfi5.53 1442)70.61 1442076.91 144218331 1421%.40 1442787.33 1442103.61
SURVEY 7W ELEVATION 7476.79 7/68.70 743861 7631.19 744053 787578 787051 7B6fi.70 7%6.82 7B%.93 7B70.55
JUL 1994
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POST-MINING NORTHING 39541953 39541331 __
3954%.75 __
3953%% __
3%39112 __
_
3%3%.63 3964%51 _
3%5%01 ___
3966%74 a...==
3%7%39 a....=_~
3968%.BB
BSEAM FASTING 1443%5.% 14131fi5.B1 143265.80 1443366.60 143165.03 1442)70.30 142176.80 1442183.29 142190.00 144X1%.50 1442103.78
SURVEYn ELEVATION 747fi.39 7447.75 743872 7630.70 7440.02 787582 7870.51 78%.77 786687 78%.92 787051
OCT. 1991
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PO5T~41NING NORTHING c 395418.56 385411.81 395401.71 3953%.07 3%392.03 3%3%.29 39W%.31 3965%d8 3966%.85 3%7%12 3968%.SB
&SFAM FASTING 1443066.03 1443165.74 1443265.45 1443365.4 11a31fi5.19 1442070.18 142176.69 1442083.20 1147090.13 144X1%.53 1442103 BO
SZ1R'VEYH ELEVATION 7477.15 7448.51 7438.% 7437 d8 7410.87 787581 7870.62 78%.83 7B%.9d 7%7.05 7870.63
AUG. 19%
POST-MINING NORTHING 395479.19 395412% 395406.08 3953%.72 395393.80 3%3%.35 3961%.22 3%5%.BS 3%6%.B9 3%7%.12 39fiB%.77
B-SFAM E0.5TING 143065.60 743165.27 1143361 B9 143365.02 1443465.07 1112070.37 142076.85 1442083.26 142090.13 14427%.52 1442703.70
SURVEY p9 ELEVATION 7477.33 748.71 7439.72 7437.70 747.02 7875.97 7870.68 7B%.BS 78%.% 7%7.08 7870.67
OCT. 1995
POST-MINING NORTHING 395118.10 395112.82 395406.08 3953%BO 3%391.30 39fi396.37 3964%.32 3%5%.B/ 396695.91 3%7%.17 396895.75
BSEM1 FASTING 1443%5.64 1143165A7 143264.92 143365.33 743165.17 742070.01 142)76.87 142183.19 14X189.85 74470%.43 142103.60
SURVEY 010 ELEVATION 7477.62 749.01 743945 743203 741.35 7875.94 7870.73 78%.92 7867.03 7%7.11 7870.72
JULY 19%
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POSTaAINING NORTHING s.....a
385119.27 x....=
39541292 e..
c..=_
3954%.30 3953%.75 z..=~
395391.14 z.=~
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3963%.48 3964%32 __
z..=..=e
396595.90 3%6%.01 r.=~~_
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3%7%77 386895.73
B-SEAM FASTING 743%5.70 1413165.48 7443265.% 7443365.26 143465.05 161X!70.14 14207669 142(183.20 1442189.89 742L%.47 1442703.61
SURVEY 111 ELEVATION 7477.56 764699 7439.39 7431.89 741.79 787593 7870.70 78%.B7 7B%% 7867.07 7870.68
OCT. 19%
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SUBSIDENCE (CURRENT) _ __ __ _______ ___ _______ _ __ _______ _ __________ _ __________
Bom JUly 19%to OCL 19% 0.% 0.05 0% 0.01 006 001 0.03 0.05 007 007 0.%
(-J InGieat45 Rise in Elevation
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TOTAL SUBSIDENCE __
_ _-0.75 _-080 -0.N _
___ ____
-0.83 _ _
_
-0.&5 -5.94 5.81 5.e7 _-5.72 _ 5.d5
__ 1.65
Irom e~enpe Orc-mining survey
to OcNWr 1996
AV N -1092 N.====~~~~~~_
AVE-1d97E
AV EL -1097 EL
1492 N. - 793 N.
1092 E - 793 E.
1092 EL - 793 EL
0.38 O.4B 0.49 061 O7B 0.35 0.33 037 0.65 0.71 0.78
-0.07 0.05 -0.37 0.16 0.55 0.77 0.44 0.75 0.51 0.45 0.37
-0.17 -0.20 -0.22 -0.18 -0.20 0.91 7 41 7.D5 7.56 7.87 7.%
029 0.17 0.29 0.7J -0OS
O.Ofi 0.10 0.28 -0.18 000
-013 -043 -0.48 -0d9 -0.50
7/A3 N. -1093 N. -0.51
793 E - 1093E 0.03
793 EL-1093 EL
~~~~~ 067
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7093 N.-794 N___=
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0.16
1093E-79dE 031
7093 4-79/EL 000
791 N. - 1094 N. -0.57
-0.46 -0 51 -0.59 -0.54
-0.07 D.Dr D.21 -0.Is
O.H O.fiS 0% 0.61
___________ _=a_______ _______ . _________
0.16 0.16 076 Oda
035 0.35 035 -0.33
-0OI -0.03 -0.d -0.03

Pa0e 7
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1.97 1.% 1.53 1.37 1.13 1.36
1.51 1.37 170 ! 1.11 1.% 0.60
4.46 389 3.17 ~ 7.63 706 1.51
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009 0.00 0.07 0.10 D.% -0.1B
1.12 097 036 1.03 oe4 0%
O.fi9 0.68 0.78 0.63 0.61 0.56
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0.11 0.33 0.71 0.37 O.OD 0.18
0.36 0.77 0.79 0.33 0.00 0.61 '
0.03 ~ 0.07 0.01 0.07 0.01 0.00

-0.73 -0 31 -0.ZD -0.4 0.00 -0.09
SUBDC%S.XLS