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DRILL HOLE INFORMATION FORM <br />Kennecott Energy - Colowyo Mine <br />• <br />I <br />• <br />Project: Collom <br />......... <br />Hole ID: <br />C -04 -32 <br />Colowyo Project Manager: <br />Juan Garcia <br />........ <br />Hole Type (pilot, spot core, full core, well, geotech, etc.): <br />Full core /Geotech <br />Geologist (Company): <br />Brant Dennis _ <br />Date Hole Started: <br />7/8/2004 <br />Date Hole Finished: <br />7/28/2004 <br />Easting 1331736.9 <br />Northing: <br />349874 09 <br />.....�... <br />Ground Elevation: <br />, <br />Location (Qtr /Qtr, Section,T & R): <br />SW SW Section 36 4N 94W <br />. <br />Depth of Weathering: <br />_... _.._. <br />49 <br />County and State: <br />Moffat, Colorado <br />Coordinate Type: <br />Colowyo <br />Surveyed (y /n): <br />Yes <br />Drilling: <br />Drilling Company: <br />Western american <br />Rig Type: <br />Failing 1500 <br />Driller: <br />Rex Polen <br />Surface Casing Type & Size: <br />6" SDR -17 CERTALOK <br />Interval Depths: <br />0 -80 <br />Other Casing Runs: ... <br />_._... <br />Interval Depths: <br />....._... ......... <br />Casing Recovered (y /n): ................................. <br />Yes(80) <br />............................... _. <br />Drilling Methods: <br />Hole & Core <br />Rotary or Core <br />From <br />To <br />Diameter <br />Bit Type <br />Ream Interval <br />Rotary <br />0 <br />19 <br />7 7/8 <br />Tricone <br />Rotary <br />0 <br />80 <br />7 7/8 <br />Tncone <br />W. .__ <br />-d - ore' — <br />Core <br />. <br />_..-..._.._......... , .. <br />19 <br />835 <br />4.75/3 <br />_ <br />Rotary <br />835 <br />1041 <br />4.75 <br />Chris <br />Drilling Medium: <br />From To Medium and Additives: <br />0 1041 Air /Foam <br />Circulation & Hole Problems (depth lost, regained, etc.): Top 80 of hale was cased after codng to 219 §'A ue to bad hole conditio <br />Hole was reamed tp 219.5' before coring: began again. Water inflow to hole low until in to "H" sequence @ . 735'. <br />................. ............ ... ..................... <br />Large increase by 821'. Decide to switch to water /polymer drilling. After a 2 days not able to drill with wate After one core run, decided <br />... ....._.....�...__ . ....... ..... ..__.....�_............_......_ . .... . __. .... <br />Ito drill as deep as possible before water inflow over came air compressor. <br />Installation Details: No wells or piezometers installed <br />Comments Hole was cored for ge <br />weathered to 100'. Water inflow e <br />Geotechnically reiewed & corrected <br />50' bas and <br />Completion_ form_C 04 - 32. xls <br />Page of <br />