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[ i <br />, <br />i J <br />, <br />' <br />N <br />If <br />If .4 349,000 / X�O <br />CONTOUR INTERVAL 50 <br />SCALE., 1' = 200' ✓/ <br />i 1 <br />, r <br />I <br />�1 <br />i <br />i a <br />r" <br />1 <br />i <br />/ WEST PIT FILL DI TCH j <br />I 1 <br />f'1 <br />, <br />, <br />i <br />J <br />i 1 / <br />i <br />I i <br />1 % <br />/ <br />If <br />P! 348,000 <br />f <br />i <br />r _ <br />r <br />/ <br />i <br />r <br />' <br />i <br />/ <br />/ <br />F <br />i <br />If <br />A <br />If <br />J e, <br />' <br />r ! / <br />/ , J <br />N 347,000 If <br />/ <br />00 <br />N " 34,0,000 <br />, <br />�0 <br />5 + <br />/ <br />+00 <br />, <br />/ <br />; <br />+00 ' <br />N 343.000 <br />I <br />15 +00 =1 ; <br />II ' <br />�j <br />/r <br />41, <br />If <br />If <br />If <br />I <br />2a+00 <br />I i <br />I <br />r If <br />o. /. o o <br />spy o / o CD <br />cu <br />Ui In U7 <br />If <br />N 344,000 ' I <br />AS -BULL T <br />PROPOSED <br />PROPOSED <br />PROPOSED <br />PROPOSED <br />L EGEND <br />WEST PIT FILL DITCH <br />WEST PIT FILL DITCH <br />EAST TA YL OR DI TCH <br />FILL LIMIT <br />MINING L IMI T <br />AS -BULL T TERRACE DITCH <br />— - -� PROPOSED TERRACE DI TCH <br />PROPOSED CONTOUR DITCH <br />AS -BOIL T SETTLEMENT MONUMENTS <br />PROPOSED SET TL EMENT MONUMENTS <br />• AS -BULL T OBEER VA TION WEL L <br />ENGINEER'S CER TIFICA TION <br />I, BRIAN K, BRIGGS BEING A REGISTERED <br />ENGINEER IN THE STATE OF COLORADO, D❑ <br />HEREBY CERTIFY THAT THIS DRAWING HAS <br />BEEN MADE MY ME OR UNDER MY DIRECT <br />SUPERVISION AND THAT IT IS TRUE AND <br />ACCURATE TO THE BEST OF MY KNOWLEDGE <br />AND BELIEF, <br />3' 61 NATURAL SLOPE OF <br />EAST ABUTMENT <br />4 I 1 4, 11 � <br />4 <br />• •, ° I 3' (MIN.) <br />• ••4 < <br />• ROCK FIL L ZON <br />d • - • A - <br />' .4 4 1, ,, CMINJ' <br />RANDOM FILL° 4 • e THEORETICAL REQUIREMENT D50 3 -I1VCH <br />MA TERIAL DIO 1 -INCH <br />T YPICAL WES TFIL L DI TCH <br />(SLOPES <107.> <br />3 <br />I <br />• <br />d . <br />d <br />RANDOM FILL <br />MA TERIAL <br />NATURAL SLOPE OF <br />10 <br />4e 3 <br />. I <br />:4 <br />° � a <br />TYPICAL TERRACE- DI TCH <br />REGIS <br />"ITH........ ' <br />1956 <br />, <br />t01 j, <br />RANDOM FILLf 4 ° XVII \L/ LJV V 1, l7 <br />DIO 2 -INCH <br />MA TERIAL 4 ° 9 °• 4 <br />T YPICAL WES TFIL L DI TCH <br />(ELOPES X107.) <br />A <br />7500 <br />7450 <br />7400 <br />7350 <br />7300 <br />w 7250 <br />7200 <br />LQ <br />7150 <br />7100 <br />7050 <br />7000 <br />6950 <br />6900 <br />6850 0 <br />B <br />7275 <br />7225 <br />7175 <br />2 <br />7125 <br />W <br />7075 <br />7025 <br />6975 <br />7500 <br />7450 <br />t <br />0 7400 <br />h <br />W 7350 <br />W <br />7300 <br />7250 <br />ining Limit <br />Postmining ur ace <br />Prernining Surface <br />500 1000 1500 <br />Postmining Surfa <br />emining Surface <br />TYPICAL CON TOUR PITCH <br />A' <br />2000 2500 <br />0 500 1000 1500 2000 <br />0 <br />Prerainin <br />straining Surface <br />500 <br />1000 <br />DATE I REVISION <br />B1 <br />?ECEIVED <br />MAY 10 1999 <br />Division of Minerals & Geology <br />2500 <br />Permit Number #: C- 1981 -019 <br />Class: Permit <br />Section /Exhibit: XA <br />/41"Kennecott <br />$*Energy '' <br />Colowyo Coal Company, L.P. <br />5731 State Highway 13 <br />Meeker, Colorado 81641 -9199 <br />EXHIBIT 19IB <br />WEST PIT FILL DESIGN <br />DATE: 5 -6 -99 DRAWN BY: BKB <br />SCALE: AS SHOWN 1APPROVED BY: BKB <br />FILE: WP FILL.DWG <br />)AKO <br />