June 2022 G-01483.84-017-R-Rev0 Because the 33 materials and cut at no steeper than 2H:1V. The embankment will be constructed from well graded granular material, compacted in layers. The resulting embankment will be designed to meet the stability criteria usually required for embankment dams and will be relatively permeable so as to remain unsaturated. It is assumed that construction material will be imported to construct the embankment; however, suitable material such as stripped volcanic rock may be sourced on site during construction of access to the proposed portal. Further investigation of construction materials will need to be completed during detailed design. Construction drawings and specifications will be developed during detailed design. A forebay and causeway into the main pond will be features of the pond that will aid in maintenance, as is used in the existing collection ponds. The collection pond will be regularly serviced to remove sediment.
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