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NORTHWEST COLORADO CONSULTANTS, INC. <br />FIELD REPORT <br />Project: West Taylor Pond <br />Location: Colowyo Mine <br />Client: AEP <br />Project No.: 07-7649 <br />Report No.: 1 <br />Date: 7/23/07 <br />Time: 7.0 <br />Mileage: 148 <br />Engr.fTech: RE <br />Work Pertormed: <br />As requested, we visited the project site on this date and conducted compaction test No.'s 1 through 4 and retest <br />No: s 1A and 2A on the material being placed for the West Taylor Pond keyway backfill. <br />The excavation contractor, Anson Excavation and Pipe, placed, moistened and compacted on-site materials for <br />the bottom 5' of fill along the keyway. The initial tests showed moisture contents well above the optimum moisture <br />content. This material was sub excavated, aired out and mixed with dry materials before being replaced and <br />compacted. <br />Remarks: <br />The material tested generally met the project specifications for compaction and moisture content after being <br />reworked and recompacted. <br />Please refer to [he attached sheet for results of today's testing. <br />Verbal Discussions: <br />Dusty Wiseman of Anson Excavating and Alan Jorgenson of Colowyo were notified of today's test results. <br />Att. A3-1 <br />