ARCHIVED REPORTS_2003_5 - Laserfiche WebLink

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3.3 BORROW AREA OPERATION A. All borrow areas shall be kept neat and orderly. Work areas in a systematic manner. Keep borrow areas graded to drain and take all necessary precautions to minimize erosion. The EARTHWORK CONTRACTOR shall review the excavation plan with the QA/QC CONSULTANT prior to any excavation from borrow areas. Leave all surplus material in the borrow area. Maintain access roads as necessary at EARTHWORK CONTRACTOR's expense. Excavation at the borrow pits shall be limited to that depth which will permit the completed area to slope to drain to the surrounding area after completion of all Work. 3.4 EXCAVATION A. Perform all excavation of every description, regardless of the type, nature, or condition of material encountered, as specified, shown, or required to accomplish the construction. Transport excavated material to where it will be placed or to the designated stockpile area. The EARTHWORK CONTRACTOR shall selectively stockpile the onsite fine grained material to use as Clay Liner Material. The EARTHWORK CONTRACTOR shall also selectively stockpile material appropriate for use as protective operations layer. B. Soils to be excavated are variable. Fine grained material suitable for use as the Clay Liner material may only be encountered in thin intermittent seams. C. The CONTRACTOR shall make all reasonable efforts to determine the type of soil being excavated at all times. Equipment operators or the EARTHWORK CONTRACTOR's representative directing excavation shall have sufficient knowledge and understanding of soil classifications to determine general soil type. D. The EARTHWORK CONTRACTOR shall stockpile excavated material in accordance with Section 3.6 of this Specification and shall direct equipment operators to the appropriate stockpile area depending on the soil classification of the majority of material which makes up the excavation equipment's payload. E. Excavation to be carried out for the convenience of the EARTHWORK CONTRACTOR shall conform to the limits approved by the DESIGN ENGINEER, QA/QC CONSULTANT, and OWNER and shall be at no additional expense to the OWNER. F. Excavated material shall be placed a sufficient distance from the edge of excavations to prevent cave-ins or bank slides. G. The CONTRACTOR shall excavate the cell to sufficient lines and grades to construct the compacted clay liner and sumps as shown on the Construction Drawings and described in these Specifications. H. Shape, trim, and cut ditches and other drainage structures as necessary to achieve grades and dimensions shown on the Construction Drawings. FORWARD LANDFILL 02300 10 EARTHWORK