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WEST ELK MINE BSEPA/SUBSIDENCE UPDATE THROUGH AUGUST 79% SUBSDENCE PQINTt Et E1 ' p E4 ES NO N7 N7 N3 N4 NS PRE-MINING NORTHING 39419.31 3%st3.m 386/0839 u 395JBB.85 7%394.21 39&199.99' 396188.58 ~39fi5B8.06 38689976 388798.36 398887.88 B SEPM EA577NG 1143096.78 1413186.73 143185.8) 1443365% 1413165.68 147073.70 147090.79 14709665 14403.33 747098.88 747108.48 SURVEY 01 0.EVATpN 7178.75 7418.15 7138.49 7431.09 7410.39 788789 787851 787269 787287 78852 7875.37 OCi. 1991 -~_:_. ___ _~ .aer_s--:+ _= -m = ems o=_ _-~ __~.~_-r= __ ~a::~ -_---rev ===e~ _ _= v __ __ _a.~_ PRE-MINING NORTHING ]95179.37 394138 395108.79 395397.88 79574.m 396399.79 3981.9848 3865BBm 398898.m 398798.27 386997.88 B SEAM FASTING 144'!088.11 1413105.89 1113295.38 114'136589 1113185.52 141473.85 74208034 742089.01 14493.52 147099.69 142108/6 SURVEYB ELEVATON 7178.87 711823 7138.67 7437.79 7140.50 7887.88 7878.51 787270 787269 787252 7875.30 JUNE 7992 r== _- - _:_ = - -r ___~ AVERAGE OF NORTHING _-> _ s s 396119.33 z-- 3%173.05 _-_=n 385108.34 ==e_=-=~ 39538987 -~___-_ ___====mar -~__ _ 395394.15 388399.88 398198.52 - ___ 398699.m --~-_: ___- _ 396698.19 396198.32 __ 399897.88 PRE-1AIMNG FASTING 1413088.4 743168.02 14432%.57 743385.87 743W561 1421)73.78 t4a7B0.32 142)88.3'! t420m.4 142mB.6B t42706w7 BSEAM ELEVATION 1178.87 74819 7138.58 7431. t4 7440.45 7981.98 787654 787270 787288 797252 7875.37 POSf-0IININO NORTHING 396478.89 793/7257 7%.105.85 3%398.29 3%39139 39639852 38499.19 39859789 3%[57.53 399797.58 396997.72 B+SF11M FASTING 143068.71 1413785.87 1441286.89 1443365.E 144348605 14473.80 14/47987 141088.18 14497.90 144W.73 14210615 SURVEYq 0.EVARON 7479.98 7418.38 7438.77 7131.31 7440& 788098 787513 7970.& 7870.10 786967 7872.65 OCf 1992 P0ST41INING NORTHING ~ 3%4788/ 3941210 396405.59 ]95398.m 3%7974 ~ 39839660 19848857 396598.13 398698.71 398198.45 3968%79 &" N EA.4TING 144308611 1117183.87 143186.62 1443785.85 14346606 144T1.OD 1447855 14481.18 14491.78 141W8.17 741105.35 SURVEYM ELEVATION 7477.17 7418.82 74T9.D 7431.87 747.74 7878.50 7671.24 7867.47 7887.47 788755 7877.77 JUL 7993 a - - im=.~r: --~. POSE-MINING NORTHING n.aea~ - 396119.16 .ate 396/1286 ~msm. 395408.07 .m=_ 395389.8 _ ~.__~ ..:___= t-==.=~=e~ 3%393% 38839fi 51 396196.53 : = s~.~ ___ ==z 396599.08 3BGWG.11 ~s~-=~ _ 386798.39 ____ 396895.% BSEAM EASING 1443096.18 1413165.4 743185.55 143765.4 7143185.4 74470.97 142071.87 74484.10 142090.73 74497.73 74110445 SURVEYb ELEVATION 7176.79 741818 7138.59 7431.15 74W.50 7875.81 7870.56 7869.71 7968.81 7669.91 7870.55 OCT. 19m e -- = ~ a=_..=_ ___ __ POST-MINING NORTHING _ ___ __ 3%179.m :- - 396/1270 ____ 3%405.97 =.L-~ 39539D.49 ____- _ 3967D7.8 =_=a=~.=~ a 38839840 »== 398198.4 __ ___ _ 396585.81 ___...=-a 39fi69580 ..-___ __ 798798.3D _______ 396895.71 &SEyJ FASTING 74008594 7413765.59 7413285.4 143165.19 143485.53 14470.81 14479.91 14/108331 14490.40 1420971! 1471m 87 SURVEYR ELEVATON 7178.79 7418.4 7438.81 7431.19 7110.53 787578 7870.51 7869.70 788881 786693 7870.55 JUL 7994 POST-MINING NORTHING 79647953 385/1311 396109.E 3953.9998 386341.11 396398.83 396199.51 38859801 79669614 3%798.39 3988%.88 BSEMI EAST4NG 1443086.% 5443766.84 1443185.60 14339960 143465.m 14107030 14107880 14108;19 141m000 14498.50 1411m.T9 SURVEYA 0.EVATION 747638 747.76 7438.11 7430.70 74/0.8 7675.8 7870.54 7868.71 7688.87 7866.8 7870.51 OCT. 1994 POST-MINING NORTHING 79641858 3%171.4 39514.71 38839807 38637t.m 3983%29 398198.31 398595.18 398695.85 398788.11 38889558 &SEAAI FASTING 141306E m 14314.74 143285.15 1443183.4 1413485.19 14470 16 14476.4 141067.4 141090.13 141086.33 14110].90 SURVEVR ELEVATION 7471.15 748.51 703.90 7431.48 7440.8 7875.4 7870.8 7868.83 786691 7867.05 78708 AW. t9% SUBSIOENCE (CURRENT) front OCT 7994 ro AUG 19% (-) IMIpMC Rise in Elevavon TOTAL SUBSIDENCE !tarn awra9e prs-minnq survey b AUG. 19% -078 -0.79 111 -0.7B -0.BO _r_-~ _ __ ~_ -==aas_ s_-~ _ _________ -0 4 -0 35 1.66 -0.31 -0.>0 -08 8m -0.m -0.17 -0.13 -0.13 -0.m :_:_ _____ =-z-r-===_ __ ____ 5.92 5.86 5.74 5.17 4.68 ____ ____ ___ _____ r== _ ______ ________ _ _ _~ i =__ ____ a== =z__ _______ ____ _______ ____ __ __ = =-=z =______~__ ________ ___ AV N -1092 N 036 048 0.19 0.67 0.79 0.35 0.33 0.37 0.85 0 74 0.76 AV E - 7092E -0.07 0.05 -0.37 0.18 0.55 0.17 0.4 0.15 051 0.45 0.31 AV EL-1091 EL -0.17 -0.4 -0.77 -0.1B =>=.- - - -04 :_-. 0.91 tAt 205 258 297 _ a 286 __ ~~==era. eecs 70921 N. • 793 N. a =_~ vavcs>~~ -_ 0.79 ~. ~ 0.17 --~. 079 s 0.73 -0.OS 1.92 1.68 1.53 1.37 __ __ 1.13 1.b 1097 E -193 E 0.06 0.10 0.78 -0.78 0.00 1.51 137 1.70 1.74 106 060 70970.-7930. -0.p -0.U -0.Y -0.49 -0.50 4.46 3.89 3.17 267 208 1.51 -97 N. - 7093 N. -0.51 -0.48 -0 51 -0 59 -0.51 0.09 0 m 0 07 0.10 0.08 -0.19 -'-E-1097E O.m -0.07 0.07 0.77 -0.15 1.77 0.97 0.38 1.m 04 0.90 ~--10930. 0.8 0.4 0.65 0.66 0.4 0.89 068 0.78 0.63 067 0.56 -~. ~___~ ===.r nv== __ ~-~~ _~_ ___- .=a.=_.=_ _________ _______:~ ____.:~_ ___ =parr.. __rr=era ._________ ___________ t0a '94 N. 0.16 0.16 0.76 0.78 O.V O.tt 033 071 0.77 O.m 0.16 7093: ~ E. 0.3.1 0.35 035 035 -0.33 0.78 0.77 079 0.33 O.m 0.4 7omEL- FL o.m -0.07 -0.m -0.4 -0.m om o.01 a.61 007 0.07 0.m 791 N.-1091 N. -0.51 -0.51 -0.31 -050 -0.60 -0.D -031 -04 -04 O.m -0m 791E•1Wl4E -0.11 -0.E -0.fi0 -1.31 0.50 0.37 0.11 08 040 0.83 -018 791 EL-14910. Om O.m O.m O.m Om O.m O.m O.m Om O.m Om __- 7091 N.A95 N. 0.97 1.37 7.57 1.69 2m 0.34 0.4 0.56 0.39 0.77 0.78 7091E-fl95E -0.05 0.10 0.75 1.16 -0.t6 0.14 0.17 O.m -0.73 -0.m -0.01 7091 EL -695 EL -0.78 -0.79 471 -0.7B -0 80 -0.8 -0.08 -0 ]7 -0.13 -0.13 -0.09 Pp11