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WEST ELK MINE BSEAAI SUBSIDENCE UPDATE THROUGH OCTOBER 1997 <br />SUBSIOENCE POINTrt E1 E1 E3 Ea ES NO N1 N2 N3 N4 NS <br />PRE~MINING NORTHING 395419.34 79541308 395a0fi.39 395799.85 79539627 39639896 3%690.56 3965900fi 396fi902fi 3%790.76 396897.88 <br />B SENA FASTING 1x4306629 1663 16615 1667265.63 166376585 1ddJafi569 146207370 166108029 164200665 166209335 146209966 1462106.60 <br />SURVEY pI ELEVATION 747675 74x815 7a3B a9 ]671.09 744039 7801 B9 787fi 54 107269 787267 787252 7875.72 <br />OCT 1991 <br />PRE~MINING NORTHING 395419.71 395617.02 395x0629 ~ 39539988 79579402 39639879 7%d9B 48 3965%00 7%69009 39fi79027 39689788 <br />BSEAM FASTING 164706611 166316508 164326538 1643365.89 166346552 1662073 B5 746200036 166108601 144209352 144209969 1442106 a6 <br />SURVEY a2 ELEVATION 7a7fi.87 7640 23 ]43862 743119 ]66050 788186 787656 7872.70 7872.69 7871.52 78)5.30 <br />JUNE 1992 <br />AVERAGE OF NORTHING 7956 1933 395x1305 39560636 ~ 795399 di 39539415 396398 dB 39649851 396598.07 3%fi9B.1B 3%79632 3%097.00 <br />PRE-MINING FASTING 146306620 16a31fi602 164326551 164336587 im346561 164207376 144200032 1a620Bfi.33 7462093 dd 144209968 td4110fi.47 <br />B~SEAM ELEVATION 747681 74x819 Id7B 56 7x31 t4 764045 7001 8B 707656 ]872.70 7872.68 787252 787531 <br />POST~MINING NORTHING 395d109fi 395412.57 395x05 BS ~ 395399.26 79539336 39639852 39669019 79659766 396fi9753 39fi797.58 3%89712 <br />B-SEAM FASTING 146706617 1643165.97 la4ffi6588 1a637fi569 144366505 1662073.60 164207907 1462006.18 166109290 144209973 146210615 <br />SURVEY v3 ELEVATION 7476.98 7aa8 39 7a3B 17 7431 31 7m0 fix 7880 96 787513 7870.66 787010 786961 7872.65 <br />OCT 1992 <br />POST-MINING NORTHING 39541867 39561240 39540556 79539903 <br />B~SEAM EASTWG 14a306fi.2t 1a43tfi587 16432fi562 164336585 <br />SURVEY pd ELEVATION 747741 7448.82 763923 7431.81 <br />JUL. 1993 <br />POST-MINING NORTHING 395419.10 395a120fi 395x0607 79539962 <br />B-SEN.I EA6TING 14d70fi61B 16a31fi59d 14x326555 146336564 <br />SURVEY 45 ELEVATION 7476 79 7aa8 10 7x30 58 ]631 15 <br />OCT 1997 <br />POST-MINING NORTHING 39541902 395412.70 39560591 395399.afi <br />B-SEAM FASTING 166306504 146716559 14x3265.20 166376529 <br />BURVEY a6 ELEVATION 7x7679 1640.20 763861 163119 <br />JUL. 1996 <br />POST-MINING NORTHING 39541953 395x13.21 395x0625 39579996 <br />B~SEAM FASTING 1643065.98 1643165.86 14432fi500 1443366.60 <br />SURVEY p7 ELEVATION 767639 7647.75 743812 7430.70 <br />OCT 1994 <br />POST-MINING NORTHING 3956 10.56 395411 84 395406 7a 395398.07 <br />B~SFAM FASTING 164306fi 03 1443165.74 14d32fi545 16a33fi544 <br />SURVEY lIB ELEVATION 7677.15 7mB.54 743090 7431.x0 <br />AUG 1995 <br />POST-MINING NORTHING 3%419.19 39561290 395x0606 39539372 <br />B~SEAM FASTING 14430fi5.fi0 144316527 14x326409 144336502 <br />SURVEY ,tl9 ELEVATION 7477.37 764871 7x3912 763170 <br />OCT. 1995 <br />795393 41 <br />1463665 OS <br />7661 16 <br />3%393 95 <br />tda34fi5 20 <br />7440.50 <br />395393.52 <br />1m3dfi5.53 <br />766053 <br />395394.12 <br />1443665.03 <br />]ado 02 <br />~795392.0J <br />1463465 19 <br />7440 82 <br />795397 00 <br />1 ad3dfi5 02 <br />7441 02 <br />39639fi fi0 <br />1462012.09 <br />7876.50 <br />396396 51 <br />14420]0.9] <br />7875 61 <br />.3963% 40 <br />1 662070 61 <br />7675 78 <br />39fi39fi fi3 <br />1642070.30 <br />7875 B2 <br />39639fi 29 <br />1642070.16 <br />7675.84 <br />396396 35 <br />1ae2070 3t <br />7875.9] <br />3%x9653 39fi59fi.13 <br />1442078 55 1642006 48 <br />7871 24 7867 a7 <br />39669653 39fi59606 <br />1da2077.fi3 1442084 10 <br />]870.56 78fi6.71 <br />39fi49610 3%595 Bd <br />1462076 91 14d'AB3.31 <br />7870 Sd 7866 70 <br />396496 5d 396596.06 <br />1442076 80 146208319 <br />7870 Sd IB6fi71 <br />3%49636 39fi595.a8 <br />1 662076.69 164200310 <br />7670.62 ]866 63 <br />396a9fi.21 39fi595 85 <br />1d6207fi.05 1462003 2fi <br />7870.fi0 786685 <br />39fifi96 22 <br />Im2091 7fi <br />7867 47 <br />39fifi9fi t2 <br />14x2090.77 <br />786fi.Bd <br />3%695.80 <br />1462090 a0 <br />7066.02 <br />7966% 1a <br />16420%00 <br />78fi6 81 <br />39fi695 B5 <br />14420% t3 <br />7066 9d <br />39fi695.B9 <br />1642090.13 <br />7866.96 <br />39fi796 d5 3960957E <br />1462098 17 1642105 3: <br />7867 55 7871 I 1 <br />796796 39 796895 9`. <br />1442097 33 1442106 45 <br />7066.96 7870 55 <br />39679fi 39 396895.77 <br />7m2097.33 1662103 fit <br />786693 7870.5: <br />3967%39 39fi895.BE <br />14x2096 50 1642103 75 <br />7866 91 7070 54 <br />3%796 12 396895.5E <br />1642096 53 1x62103 BC <br />7867 OS ]070 6: <br />39679fi 12 396895.77 <br />7642096.52 1d42103.7C <br />IBfi7.OB 7870.67 <br />POST-MINING NORTHING 395419.10 39561282 395a0fi 08 39539980 39539x.30 3963%J7 39fid96.32 39659506 39669596 7%7%17 79689575 <br />B-SEAM EA6TING 166306564 14a31fi5.41 1643266 92 166336533 1643465.17 166207004 1dg207687 144208319 1662009.95 14420%63 164210360 <br />SURVEY tt10 ELEVATION 747762 166906 7639.65 7x3203 ]441.75 787594 787073 706692 7867.03 786714 78]072 <br />JULY 1996 <br />POST~MINING NORTHING 39541917 395x12.92 ]9540630 395399.75 395396 16 39fi396.48 79669332 79659590 39669504 39fi79621 3%89573 <br />B-SEAM FASTING 166306570 1660765.48 14x326506 16433fi5.26 144346505 1462070.14 1642076 fig 144208320 146208989 1441096 d2 146210364 <br />SURVEY atI ELEVATION 747756 7460 99 7439 J9 763199 I44t 29 76]593 78]070 7866.07 7Bfi696~ 786707 7870.66 <br />OCT 1996 <br />POST~MINING NORTHING 395610 99 3956 12.fi5 79540572 39539914 39539333 39fi396.a5 7%69330 39659591 39669599 39fi796.24 396895.78 <br />B-SEAM FASTING 14x706572 1443165]1 14432fia 96 14437fi516 144346516 144207016 144207686 1462083.24 Id410%23 t4420966fi tm210381 <br />SURVEY 612 ELEVATION 7477 d6 744916 743955 7472.14 7x4146 7875.89 707061 7B6fi.Bt 786693 786706 7870.60 <br />JULY 1997 <br />POST-MINING NORTHING 79541893 ]9561162 395405.76 ]95399 t9 39539610 396]9655 396496.60 39fi595.94 79%9fi 03 39679631 39609595 <br />B~SEAM EASTWG 1dd30fi590 164316568 166316518 164336550 tld34fi519 16x201024 1641076 B1 164208327 144209009 14420%56 1442103.83 <br />SURVEY NI3 ELEVATION 747772 7dag OB 767956 7x32.13 7661.31 787596 7870.71 78fi607 786711 7867.00 787069 <br />OCT 1997 <br />________~~_ __________ ___________ ___________ ___________ ___________ ___________ _________ __ ___________ ___________ _______a=_= <br />SUBSIDENCE (CURRENT) <br />Irem JUly 1997 to OC[1997 -020 008 0.01 001 0.15 007 -010 -0.O6 -0.19 OOd -009 <br />(q Intlicaies Rlse in Elevation <br />TOTAL SUBSIDENCE -0.91 .089 -098 -099 -087 5.91 503 582 556 552 afi2 <br />hom average pre~m~mng survey <br />to October 1991 <br />____. _=.v_ _______ ___ __ __ _______ _______e =_ ___==... a._ ____ _____= v. c. _______ ______eve _= <br />___________ ____-_____ ___________ eo. _e._____ ___________ _____ _ _ <br />AVN-10191N 036 048 049 0.61 079 035 033 037 055 0.]d O7fi <br />AVE ~IOl92 E. -007 005 -077 018 0.55 017 046 015 O.Sa 045 0.32 <br />AV EL~10192 EL -01] 0.20 -012 -018 -010 091 1.41 2.05 1.50 291 2.fi6 <br />10/91 N ~ 793 N. 0.29 0 17 019 0 23 -0 OS 1.92 1.66 1 53 1 71 1.13 1 3fi <br />10192E 7193 E. 006 010 0.26 -0 t6 000 151 132 1.70 1.16 1.06 080 <br />10191 EL-7193 EL -063 -0 a7 -0.46 -0d9 -050 646 389 3.17 2.67 2.06 1.56 <br />Page I BU8OC9781CLS <br />