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<br />S.1.2 Handlin~of Material <br />t The Contractor shall use only the materials obtained from required excavations which meet <br />applicable specifications, except as allowed by the Engineer. Such materials may be placed in <br />the designated final locations direct from the excavation, or may be placed in temporary <br />stockpiles and later placed in the final location as approved by the Engineer. The Contractor <br />shall perform excavation operations so as to facilitate stockpiling and rehandling of excavated <br />' material as required. <br />' 5.1.3 Cuts and Slopes <br />The Contractor shall inspect all temporary and permanent open~ut excavations on a regulaz <br />basis for signs of instability. Should signs of instability be noted, the Contractor shall undertake <br />remedial measures immediately and shall notify the Engineer as soon as possible. It will be the <br />Contractor's responsibility to remove all loose material from the excavatioh slopes and to <br />maintain the slopes in a safe and stable condition at all times during the progress of the work. <br />' Final disposal azea and borrow area cut slopes shall be no steeper than 3:1 for liner installation <br />construction. Final surfaces shall be smoothed of irregularities to the satisfaction of the <br />' Engineer. Final disposal area cut surfaces shall be sloped to drain so that no ponding develops <br />from direct precipitation and runoff. <br />' 5.1.4 Excess Excavation <br />' All necessary precautions shall be taken to preserve the material below and beyond the lines of <br />excavation in the soundest possible condition. Where required to complete the work, all such <br />excess excavation and overexcavation shall be refilled with materials meeting applicable <br />requirements and furnished and placed to the satisfaction of the Engineer. <br />' 5.1.5 DisRgsal of Excavated Materials <br />Excavated materials that are unsuitable for, or are in excess of, permanent construction <br />' requirements shall be wasted. Waste piles shall be located outside the limits of the disposal azea <br />as approved by the Engineer. Placement will not interfere with the natural flaw within storm <br />' drainage areas, with the operation of the tailings disposal area facilities or other mining <br />structures. They will neither detract from the appearance of the completed project nor interfere <br />with the accessibility of the various parts of the work. Waste piles shall be graded and trimmed <br />to reasonably regular lines and stable slopes. <br />' -io- <br /> <br />