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NORTHWEST COLORADO CONSULTANTS, INC. <br />FIELD REPORT <br />Project: Refuse Pile <br />Project No.: 99-3983 <br />Date: 4/17/06 <br />Location: Foidel Creek Mine <br />Client: Twentymile Coal Co <br />Work Performed: <br />Report No.: 25 <br />Time: 4.0 <br />Mileage: 44 <br />Engr.ITech: RE <br />As requested, we visited the project site on this date and conducted compaction test No.'s 307 through 315 on the <br />material being placed in the Refuse Pile. <br />Twentymile Coal Company crews placed and compacted processed waste coal in Area 2 % and Area 2. <br />We obtained a moisture content sample at each test location and two composite samples of the material being <br />tested and delivered them to our laboratory for moisture content determination and checkpoint Proctor <br />determination. The composite sample checkpoint Proctor from Area 2 Y~ did not match any previous samples for <br />this project. Therefore, a new standard Proctor was performed and we will refer to it as 10P for this project. The <br />checkpoint from Area 2 matched a previous sample for this project. <br />Remarks: <br />The material tested generally met the project specifications for compaction. <br />Please refer to the attached sheet for results of today's testing. <br />