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2007
<br />COAL EXPLORATION DRILL HOLE OR WELL ABANDONMENT REPORT
<br />RIO TINTO ENERGY AMERICA - COLOWYO MINE
<br />CX-2006.109.13
<br />See notes at end of table
<br />Drill Site Na
<br />(State Eng. Monitoring Hole
<br />Permit Number)
<br />Notes
<br />'A, '14, Sec.
<br />Township, Range
<br />Eastiog
<br />Northing
<br />Elevation
<br />(ft.)
<br />Depth
<br />Of.)
<br />Diem
<br />(in.)
<br />Vol. (cu.&) •
<br />Open Bole Approx.
<br />Water Level
<br />
<br />(depth • ft.)
<br />Drilling Method
<br />Sealant Amt.
<br />P.GNoL
<br />
<br />(gal.) Bent
<br />Chip
<br />Bags
<br />(50#)
<br />Sealed
<br />Regraded
<br />Seeded
<br />ST-07-01 Pilot Hole
<br />SE
<br />NW
<br />17
<br />3 N
<br />93 W 1343001.96 335206.43 7939.98 460.0 5.63 79.4 P.G./C. wl c.c.' 91700 20 x
<br />
<br />
<br />ST
<br />07 Core Hole
<br />
<br />Pilot Hole ,
<br />, .,
<br />.
<br />1342984.28
<br />1344412
<br />84
<br />335218.47
<br />334817
<br />5
<br />7939.61
<br />460.0
<br />5.63
<br />79.4 215 Air/Foam-Water Rotary
<br />P.G.lC.wlc.c.'
<br />9!700
<br />26
<br />x (2) (2J
<br />-
<br />-02
<br />NW,
<br />SE
<br />17
<br />3 N
<br />93 W . .6 7880.69 421.0 5.63 72.7 P.G.IC.w/c.c.' 135 x
<br />
<br />
<br />
<br />T-07-03 Core Hole
<br />
<br />Pilot Hole , .,
<br />.
<br />1344428.82
<br />
<br />1342419'32
<br />334805.52
<br />
<br />334423
<br />15
<br />7881.54
<br />
<br />8012
<br />99
<br />255.0
<br />
<br />441
<br />0
<br />5.63
<br />
<br />5
<br />63
<br />44.0
<br />
<br />76
<br />1 231 Air/Foam-Water Rotary
<br />P.G.IC.wlc.c.'
<br />
<br />'
<br />-
<br />60
<br />x (2) (2)
<br /> Core Hole SW, NW, 17 3 N., 93 W. . . . . . 234 Air/Foam-Water Rotar P.G./C. w/ c.c. 10050 11 x
<br />
<br />
<br />ST-07.04
<br />ST-07-05
<br />
<br />Pilot Hole
<br />Pilot Hole
<br />
<br />SW,SW,17
<br />
<br />3 N., 93 W.
<br />1342425.63
<br />1342973.17
<br />1343228.48
<br />334401.80
<br />334157.56
<br />333334
<br />54
<br />8013.54
<br />7771.00
<br />8060
<br />82
<br />336.0
<br />460.0
<br />420
<br />0
<br />5.63
<br />5.63
<br />5
<br />63
<br />58.0
<br />79.4
<br />72
<br />5
<br />
<br />150
<br />y
<br />Air/Foam-Water Rotary
<br />p G./C. wl c.c.'
<br />P.G./C. wl c.c.'
<br />--
<br />41/900
<br />86
<br />6
<br />x
<br />x (2)
<br />
<br />
<br />(2) (2)
<br />
<br />
<br />(2)
<br /> Core Hole SW, SW, 17 3 N., 93 W. . . . . . 250 Air/Foam-Water Rotar P.G./C. w/ c.c' 98 z
<br />
<br />ST-07-06
<br />Pilot Hole 1343253.58
<br />1344011.43 333356.94
<br />333537.23 8060.61
<br />8064
<br />24 311.0
<br />360
<br />0 5.63
<br />5
<br />63 53.7
<br />62
<br />1 y P.G./C.w/c.c'
<br />' -- 74 x
<br />(2)
<br />(2)
<br /> Core Hole SE
<br />, SW, 17 3 N., 93 W. . . . . 306 Air/Foam-Water Rotar P.G./C.w/c.c. 77 x
<br />
<br />ST-07-07
<br />Pilot Hole 1344038.61
<br />1341525.75 333531.18
<br />333273.19 8064.32
<br />8249
<br />75 364.5
<br />500
<br />0 5.63
<br />5
<br />63 62.9
<br />86
<br />3 y P.G./C. col c.c'
<br />' 80 x
<br />(2)
<br />(2)
<br /> Core Hole SE
<br />, SE, 17 3 N., 93 W. . . . . 225 Air/Foam-Water Rotar P.G./C. w/ c.c. 107 x
<br />
<br />ST-07-08
<br />ST-07-09
<br />Pilot Hole
<br />Pilot Hale
<br />SW, SW, 17
<br />3N.,93W. 1341518.80
<br />1342533.69
<br />1343528.13 333258.90
<br />333174.52
<br />333087.84 8250.10
<br />7876.68
<br />8145
<br />34 332.0
<br />480.0
<br />401
<br />0 4.86
<br />5.63
<br />5
<br />63 43.0
<br />82.8
<br />69
<br />2
<br />316 y
<br />Air/Foam-Water Rotary P.G./C. w/ c.c.'
<br />P.G./C.w/ac.'
<br />' --
<br />12/1000 70
<br />4 x
<br />x
<br />(2)
<br />(2)
<br />
<br />Core Hole
<br />SE, SW,17
<br />3 N., 93 W. . . . .
<br />262
<br />Air/Foam-Water Rotar P.G./C. wl c.c. 92 x
<br />
<br />
<br />ST
<br />
<br />Pilot Hole
<br />1343512.60
<br />1342781
<br />48
<br />333087.26
<br />332234
<br />78
<br />8145.03
<br />400.0
<br />5.63
<br />69.0 y
<br />P.G./C.wlc.c.'
<br />--
<br />92
<br />x 2) (2)
<br />-07.10 NE, NW
<br />17 3 N
<br />93 W . . 8235.53 420.0 5.63 72.5 P.G./C. w/ c.c.' 93 x
<br />
<br />ST-07.11 Core Hole
<br />Pilot Hole , ,
<br />. 1342751.36
<br />1340702.05 332217.40
<br />331352.51 8235.92
<br />8346.67 401.0
<br />921
<br />0 5.63
<br />5
<br />63 69.2
<br />158
<br />9 260 Air/Foam-Water Rotary P G./C. w/ c.c.'
<br />' 83 x (2) (2)
<br />
<br />-
<br />Core Hole NE, NE, 19 3 N., 93 W. . . .
<br />560
<br />Air/Foam-Water Rotar P.G./C. wl c.c. 18/1200 18 x
<br />
<br />ST-07.12
<br />Pilot Hole 1340717.67
<br />1341991.67 331368.79
<br />331339.47 8346.20
<br />8330
<br />04 296.0
<br />440
<br />0 5.63
<br />5
<br />63 51.1
<br />75
<br />9 y p G./C. wl ac.'
<br />' -- 66 z (2) (2)
<br />
<br />Core Hole SE
<br />, NE, 19
<br />3 N., 93 W. . . . .
<br />392
<br />Air/Foam-Water Rotar P.G./C. w/ c.c. 8050 15 x
<br />
<br />
<br />Pilot Hole
<br />1341960.91
<br />1349295
<br />71
<br />331329.45
<br />8329.85
<br />399.0
<br />5.63
<br />68.9 y
<br />P.G./C. w/ c.c.'
<br />--
<br />86
<br />x
<br />(2)
<br />(2)
<br />WP-07-02 SE
<br />SE
<br />9 3 N
<br />93 W . 338101.40 7843.25 401.0 5.63 69.2 (1) (3) (3
<br />
<br />Core Hole
<br />
<br />H
<br />,
<br />,
<br />.,
<br />.
<br />
<br />1349284.20
<br />1348576
<br />4
<br />
<br />338104.92
<br />
<br />7843.21
<br />
<br />379.0
<br />
<br />5.63
<br />
<br />65.4 _
<br />Air/Foam-Water Rotary
<br />
<br />(1)
<br />
<br />(3) )
<br />
<br />(3)
<br />WP-0T-03 SE, SW
<br />9 3 N
<br />93 W .
<br />9 338351.26 7794,53 320.0 5.63 55.2
<br />(1)
<br />(3)
<br />(3)
<br /> Core
<br />Core Hole le
<br />Pilot Hole
<br />,
<br />.,
<br />.
<br />1348549.68
<br />1350558
<br />4
<br />338331.79
<br />7794.72
<br />294.0
<br />5.63
<br />50.7
<br />-
<br />Air/Foam-Water Rotary
<br />(1)
<br />(3)
<br />(3)
<br />WP-07-04 NW, NE
<br />17 3 N.
<br />93 W .
<br />0 337335.46 7768.56 341.0 5.63 58.8 P.G./C." - 78 x (3) (3
<br />
<br />Core Hole
<br />
<br />H , ,
<br />.
<br />1350543.59
<br />
<br />1349694
<br />15
<br />337344.50
<br />7768.90
<br />313.0
<br />5.63
<br />54,0
<br />-
<br />Air/Foam-Water Rotary
<br />P G1C"
<br />-
<br />73
<br />x
<br />
<br />(3) )
<br />
<br />131
<br />WP-07-05 r NW, NE, 16 3 N.
<br />93 W . 337514.48 7834.24 340.0 5.63 58.7 P.G./C." - 98 x (3) (3)
<br />
<br />
<br />WP-07.11 e
<br />HO olele
<br />COf o
<br />Core Hole
<br />
<br />SE
<br />SW
<br />9 ,
<br />.
<br />3 N
<br />93 W 1349682.15
<br />
<br />1349002
<br />20 337518.86
<br />
<br />33864
<br />1 7835.23 353.0 5.63 60.9 - Air/Foam-Water
<br />Air/Foam-Water Rotary PG/C"
<br />- 74 z
<br />(3)
<br />(3)
<br />
<br />WP-07.12
<br />Core Hole ,
<br />,
<br />NE
<br />NW
<br />16 .,
<br />.
<br />N . 0.
<br />6 7789.08 335.0 5.63 57.8 Air/Foam-Water Rotary (1) (3) (3)
<br />
<br />NOTES: '
<br />- P.G./C. w/ c.c. - Plua ael and/or ben ,
<br />,
<br />tonite chins wit ., 93 W.
<br />3
<br />h 2 to a tnnt nnnn.mo 1349129.02
<br />?n„ 337612.52
<br />•• - o r- rr _ o1 7846.73
<br />,,....,.i._.e.. 333.0
<br />.__.__:._ L 763 57.5 AirlFoam-Water Rotary P.G.IC." - 76 z (3) (3)
<br />(2) -- These drill/core holes are located within the These drill/core holes are located within the W st Pin area and will be the South Taylor drilling, et a covered y V W with V yy1
<br /> rock() a rock(s) and n and native Live I material terialcoca ??ay w u?smrueo during reciamanon.
<br />.
<br />O cunt (20?) oPred strip area Nor mining area and w mined through.
<br />(3) -These locations are locate in the West Pit or Section 16 mining areas. The sites will be reclaimed during reclamation activities after coal mining ceases.
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