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July 1, 2013 <br />4 <br />S t <br />Photograph 2: South Surface Drain Looking Southeast (6127113) <br />2.4 Placement and Compaction of Fill Materials <br />Material was placed on the fill this quarter. The fill material was placed by Komatsu 830E -AC haul <br />trucks. Dump areas were limited to 50' in height, in accordance with the approved design, though 25' to <br />35' lifts were the typical dump height for all lifts during the quarter. GPS equipped dozers were used to <br />knock down truck placed spoils, assuring construction consistent with the approved design. <br />The fill placement during this quarter was consistent with the approved design, and prudent <br />construction methods As fill material is placed above a previous dump level, the surface of the previous <br />dump is ripped with a D -10 dozer to prevent the formation of perched water tables. Photograph 3 <br />depicts the west facing slope of the fill in the area where the slope of the fill is at 3h:1v. <br />4 <br />