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Colowyo Coal Company, l.P. 5731 State Highway 13 / Kennecott Meeker. Colorado 81641 / ~ (970) 824-1570 ~ E (970) 824-1598 FAX . nergy ,,,~ ~ Stephen R. Hinkemeyer J ~ /n~.. ~ o Coa! Com WlD~ an L P Technipl Services Manager p y y . . FOR: Fife West Pit Fill Inspection Certification April 11, 2003 - -On March 31, 2003,) inspected the-area in which the-West Pit Excess-Spoil Fitl is being- constructed. The purpose of this inspection was to observe the surface rock drain that borders the 3:1 Excess Fill Slope; inspect the areas dumped to final grade below the 7400 dump elevation; inspect the re-vegetation on the fill surface and to inspect the fill for areas of water seepage or surface drainage, inspect the final grade slopes below the 7300 elevation of the Excess Fill Slope, and to satisfy the requirements of CDMG Rule 4.09.1(11 a). During the inspection it was observed that the condition of the fill was good, no seeps or springs were noted. The collection ditches at the 6950, 7050 and 7150 elevations all were in relatively good shape. No water was evident in the surface or underdrains. Some water was evident in the slump drain to the west of the fill area at less than 0.1 gallons per minute and water was flowing from the toe drain at about 2 gallons per minute. I am a mining engineer, registered in the State of Colorado, and experienced in the construction of rock and earthen projects for the purposes of mining activities. To the best of my knowledge, based on my professional expertise the West Pit Excess Spoil Fill has thus far been constructed in conformance with the prudent state-of-the-art methodology for earth and rock fill construction, as specified in pages la-2 through la-4, Exhibit 191b, and other applicable requirements of the approved permit documents, a portion of CDMG Permit C-81-019. Stephen 6t. Hinkemeyer ~~a~ Colorado Registered P.E. 25~3A?y 25436 Date: /()vr~~~ ~) CF 4.5.1 2003