PERMFILE61860

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: 1998 Report
• Section_Exhibit Name: EXHIBIT 2.04-E3 Tab F Part 1
• Media Type: D
• Archive: No

seam. Rock mechanic and chemical samples would be selected from the core
sequences Gosest to the coal seam.
• Each core run was measured for recovery and received a core sheet description
of its lithology and relative rock strength. Rock and coal materials selected for
preservation were measured, placed in plastic sleeves, stapled and sealed in
cardboard core boxes. These core boxes were stored at the Oxbow Mine
facilities until the lab samples could be selected and transported.
Selected core boxes from core holes EC-5, EC-6, EC-10 and EC-12 were
transported to Advanced Terra Testing, Inc. in Lakewood Colorado by Glenn E.
Miller. Don Reimer of Advanced Terra and John Able Jr., a consulting mine
engineer selected rock mechanic samples from these core boxes. A total of 11
unconfined compressive strength tests, 9 triaxial compressive strength tests and
15 moisture content analyses were performed on a total of 20 core samples.
Advanced Terra Testing provided the results of these tests to Oxbow Mining
under separate cover.
Upon completion of the rock mechanic tests, Glenn E. Miller transported the coal
seam samples from EC-5, EC-6, EC-10 and EC-12 to the CT&E lab in Denver,
Colorado. The coal seam at each location was broken into four sample
increments (less the rock mechanic samples) and these seam increments
received a short proximate analysis (moisture, ash, BTU 8 sulfur).
• The remaining rock core was shipped to the ACZ lab in Steamboat Springs,
Colorado to undergo chemical analyses on the roof and floor. Chemical
analyses are required by the Colorado Division of Minerals and Geology of the
roof and floor materials for each underground seam to be mined. Required
sample increments of the roof and floor are 10 feet and 5 feet respectively. The
results will be provided to Oxbow Coal under separate cover.
Selected high ash portions of the D-seam may not be mined in all locations of the
proposed underground mine. CTBE prepared splits of the high ash portions of
the seam at Glenn Millers direction. These samples were sent to ACZ for
chemical analyses, as they may be included as roof or floor materials. Sample
inventory sheets of the transported lab samples and the lab increment
instructions for EC-5, ECG, EC-10 and EC-12 are located in Section 3.
WATER WELL COMPLETIONS
Drill sites BC-1, EC-5, ECG and EC-7 were completed as water monitor wells.
Sites BC-1 and EC-7 were completed as shallow alluvial monitor wells. BC-1
was completed in the Bear Creek drainage and EC-7 was completed in the Elk
Creek drainage. As both drainages would be undermined by the new D-seam
mine; these wells would assist in the permitting process. Site EC-5 was
• completed as a narrow diameter piezometer well in the D-seam. Due to the
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