2010-12-17_REVISION - C1981019 ‎(84)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 12/17/2010
• Doc Name: Exhibit 6 Item 10 Cross-Section C-C Drill Holes
• Type & Sequence: PR3
• Media Type: D
• Archive: No

DRILL HOLE INFORMATION FORM
Kennecott Energy - Colowyo Coal Company
•
Project. West Pit
Hole ID:
C- 1 0 1 6 -25
Colowyo Project Manager .
Juan Garcia
Hole Type (pilot spot
core, full core, well geotech, etc.):
Pilot
(Company):
g' ( p y)
teve St
Date Hole Started
2/1 7/2006
Date Hole Finished
211912006
Easting: 1329548 31
Northing:
344729 42
Ground Elevation:
7780 67 TD
803
Location (Qtr /Qtr, Section,T & R) SW SE Sec02 T3N R94W
_ -..
Depth of Weathering:
40
County and State
Moffat Colorado
Coordinate Type
Surveyed (y /n)
Drilling:
Kirk
Drilling Company:
Himes
Rig Type:
Porta Drill
Driller:
Homedew
Surface Casing Type & Size:
T' Steel
..
Interval Depths
0 to 21 feet
_ ..... .. .......
.
Other Casing Runs:
None ._ _
_. .,
Interval Depths:
Casing Recovered (y /n):
Yes
Drilling Methods:
Hole & Core
Rotary or Core
From
To
Diameter
Bit Type
Ream Interval
Rotary
0 feet
21 feet
9 7/8
Tn Cone Roller
Rotary
21 feet
808 feet
5 7/8"
ADT
Drilling Medium:
From To Medium and Additives:
Surface 21 feet Air
21 feet 808 feet Air / Water mist with K Cl
Circulation & Hole Problems (depth lost, regained, etc.): Burn 86 to 185 feet created surges in circulation medium.
Logging:
Logging Company: Century Logger Name Robert Sipes Probe Depth: 797.6
Date Hole Logged: 2/19/2006 Logging Suite: Gamma Resistance Density Caliper
Diaital Loa Format. LAS Other.
Groundwater
Static water Level (Log): 630 Inflow (depth & production estimates):
total inflow.
less than 5
Well Installation Details: None
. (Comments Burn 86 to 185 feet, burn not apparent above 70 Feet.
C -06 -25 Completion forms.xis
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