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WEST ELK MINE B~SEPM SUBSIDENCE UPDATE THROUGH AUGUST 1996 SUBSIDENCE POINT 9 E1 E2 EJ E4 E5 NO N1 N2 N3 PRE~MINING NORTHING 395419. 34 395413. 08 3395406 79 395]99. 85 395394. 2] 396398. 96 396498. 56 x796598. 08 396698. 26 B SEAM FASTING 1447066. 29 1443186. 15 1443265. 6) 1443365. 85 1443665. 69 14420]7. ]0 1442060. 29 1442086. 65 1442093. 35 SURVEY'/I EIEVATION 7476. 75 7648. 15 7438 49 7431. 09 7640. 39 7881. 89 7876. 54 7872 69 7871. 6] OCT. 1991 PRE-MINING NORTHING 395419. 31 395413. 02 395406. 29 795399. 88 395394. 02 396]98 79 396498. 48 x 396598. 00 396698. 09 B SEAM FASTING 1443066 11 1463165. 88 1443265. 38 1447365. 89 1463465. 52 1442073 85 1442080. 34 1x42086. 01 1442093. 52 SURVEY A2 ELEVATION 7476. 87 ]448. 23 7438. 62 ]431. 19 ]440. 50 7881. 86 ]876. 54 ]8]2. ]0 78]2. 69 JUNE 1992 AVERAGE OF NORTHING 395419. 33 395613. 05 395406. 34 795799. 8] 395394. 15 396798. 88 396498. 52 x 396598. 03 396698. 18 PRE-MINING FASTING 1443066. 10 1x4]186. 02 1443265. 51 14x3365. 8] 1643665. 61 14410]3. 78 1442080. 72 1462086. 33 144209]. x4 &SEAM ELEVATION ]476. 81 ]468. 19 ]438. 56 7431. 14 ]640. 45 ]881. 88 ]BIfi. 54 ]8]2. ]0 7872. 68 POST-MINING NORTHING 395418. 96 ]95412. 5] 395405. 85 395399. 28 395393. 36 796398. 52 396498 19 x39659]. 86 79669]. 53 B-SEAM FASTING 1443066. 27 1443165. 9] 1443265. 88 1443385. 69 1443465 OS 1x410]3. 60 1442079. 87 1462086. 18 1441092. 90 SURVEY N3 ELEVATION 7476. 98 7448. 39 7438. 77 7431. 72 ]460. 64 7880. 96 7875. 17 ]8]0. 84 7870. 10 OCT. 1992 POST-MINING NORTHING 395418. 67 395412. 40 395405. 56 395399. 03 395393. 41 796396. 60 396496. 57 396596. 13 396698. 22 B-SEAM FASTING 1443066. 21 14x3165. 8] 1443265. 62 14x3365. 85 1643465. 05 1442072. 09 1442078. 55 14x2084. 48 1442091. ]8 SURVEY p4 ELEVATION ]477 41 7448. 82 7439. 23 7x31. 81 7641. 19 ]878. 50 7871. 24 ]867. 47 ]88]. 4] JUL. 1997 _______ _______ ______ _ _ _____ _ _ _____ _ _ _____ _ _ _____ _ _ _____ _ _ _____ _ _ _____ _ _ _____ _ POST-MINING NORTHING 395419. 18 395612. 86 395406. 07 395399. 62 395393 95 396396. 51 396496. 53 396596. 06 396896. 12 B-SEAM FASTING 1443066. 18 16431fi5. 9d 1443265. 55 1643365. 66 1443465. 20 14420]0. 9] 144207]. 63 1642084. 10 1441090. 73 SURVEY YS ELEVATION 7476. 79 ]468. 18 7478. 58 ]431. 15 7440. 50 ]8]5. 81 78]0. 56 7866. 71 ]866. 84 OCT. 1993 POST-MINING NORTHING3 395419 .02 395412. 70 x 795405. 91 395399. 6fi 395397. 52 396396. 40 396496. 20 396595. 84 396695. 80 B-SEAM FASTING 1443065 .84 1443165. 59 1443265. 10 14a33fi5. 29 1447485. 53 1642070. 61 1x420]6. 91 144208]. 31 1442090 40 SURVEY A6 ELEVATION 7476 .]9 7448. 20 ]438. 61 7431 .19 ]440. 53 7875. 78 ]8]0. 54 ]886. ]0 7868. 82 JUL. 1994 POST-MINING NORTHING3 395419. 53 395417 21 x 395606. 25 395399. 96 395396. 12 ]96]96 63 396496. 54 398596. 04 796696. 24 B~SEAM FASTING 1443065 .98 1443165. 84 1643265. 80 14x3366. 60 1643685. 03 14420]0. 30 1442076. 80 1442083. 29 14x2090. 00 SURVEY N] ELEVATION ]6]8 .39 ]44]. ]5 ]438. 13 7430. ]0 7640. 02 ]8]5. 82 ]870. 54 ]866. ]1 ]868. 81 OCT. 199a POST-MINING NORTHING3 395418 .56 395611. 84 c 395404. ]4 395398 .07 795392. 03 396396. 29 396496 .34 796595. 48 396695. 85 B-SEAM FASTING 1443086 .03 164]165. 74 1443285. 45 16x3365 .44 1443485. 19 1462070 16 14x20]6 .69 1442083. 20 1442090. 13 SURVEY k8 ELEVATION ]4]] .15 744B. Sa ]638. 90 7471 .48 ]440. 82 7875. 84 ]8]0 .62 ]866. 83 ]866. 94 AUG. 1995 POST-MINING NORTHING3 395419 .19 395412. 90 795406. 06 395399 .]2 395393. 80 396396. ]5 796x96 .22 396595. 85 398695. 89 B~SEAM FASTING 1443065 .60 1443165. 27 1443264 .89 14d33fi5 .03 1443465. 01 14420]0. 31 14420]8 .85 1442083. 18 1442090. 1] SURVEY Y9 ELEVATION J4]J .33 7448. 71 7439 .12 ]431 .70 J4a 1. 02 7875. 9] ]8]0 .68 ]866. 85 ]886. 96 OCT. 1995 POSi~MIN ING NORTHING3 395419 .10 395412. 82 395406. 08 395399 .80 395394. 30 398398. 3] 396496 .31 396595. 84 398695. 94 B-SEAM FASTING 1643065 .64 1463165. 41 1443264. 92 1443365 .33 1447465. 1] 14420]0. 04 14420]6 .8] 1442083. 19 1462089 95 SURVEY Y10 ELEVATION 74]] .61 7449. 04 7439. 45 7632 .03 7441. 35 7875. 94 ]8]0 .]3 7866. 92 7867. 03 JULY 1996 POST-MINING NORTHINGx 395419 .2] 395612. 92 395408 .30 395399 .75 395394. 19 396396. 48 396493 .32 396595. 90 396696. 04 B-SEAM EATING 1443065 .]0 16431fi5. 48 1443265 .06 1463365 .26 1443465. 05 1462070 .14 144207fi .69 1442083. 20 1442089. 89 SURVEY A71 ELEVATION 7477 .56 7448. 99 7639 .39 7471 .99 7441. 19 7875 .93 ]8]0 .70 ]866. 8] ]866 .96 OCT. 1996 POST~MINING NORTHINGx 395618 .99 795412. 85 395405 .72 395399 .14 395393. 33 396396 .95 396x93 .38 396595. 91 396695 .99 B~SEAM FASTING 1463065 .72 1443165. 31 1443264 .96 14x3365 .16 1443465. 16 14410]0 .24 1442076 .8a 1642083. 24 1462090 .23 SURVEY Y12 ELEVATION ]4]] .44 7449. 16 ]439 .55 ]431 .16 ]441. 46 ]8]5 .89 7870 .61 ]866. 81 ]866 .93 JULY 1997 POST-MINING NORTHINGx 395418 .93 395412 61 395605 .76 395399 .19 395396. 10 396398 .55 396496 .40 396595. 94 396696 .03 B~SEAM FASTING 1447065 .90 1443165. 68 1443285 .28 1413365 .50 1443655. 29 1442070 .24 1642076 .81 1442083. 23 1442090 .09 SURVEY p13 ELEVATION 747] .]1 7449. 08 ]439 .54 7432 .13 ]x61. 31 7875 .96 ]870 .71 ]866. 8] ]88] .12 OCT. 1997 POST~MINING NORTHING 395419 .20 395613. 02 395406 .15 395399 .68 395393. 92 396396 AB 396496 .41 396595. 94 396696 .08 B-SEAM FASTING 1443065 .85 1443185 .58 1443265 .27 1443365 .35 1443465. 25 14620]0 .22 1442076 .]9 1442087. 21 1642090 .05 SURVEY N16 ELEVATION ]4]] .68 7x48. 88 ]639 .26 7471 .86 ]461. 18 7876 .01 ]870 .77 ]866 .94 788] .01 AUG. 1998 3 33 3 33.... 3 3333333 SUBSIDENCE =3...33 333333 3 ______ _ _ 33333 3 ______ _ ____ 3 . = ==3 _____ _ Irom Oct. 1997 to Aug. 1998 0 24 0 .20 0 .28 0 .27 0 .13 0 .05 ~O .Ofi ~0 .0] 0 .11 I-) Indicator Ries in Elevation 3333 333333 3 3... v 3 33==33 3 _______ TOTAL SUBSID . x3 ICURRENTI ______ -0 .67 0 .89 ____ -0 .70 ~0 .]2 . -0 .74 ______ 5 _ .86 _ 5 .]] __ 5 .78 5 .68 from ev rage pi e-mining survey m Augum 1998 Pege 1 SUBOC97B.XL5