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2-26A' <br />• It should be noted that these pre-depositional measures will occur <br />on a phase-by-phase schedule. Disturbance of land will be limited <br />to the amount necessary to construct only the phase of deposition <br />in progress. Only the sediment pond will be constructed to Phase <br />Four specifications initially. Water diversion structures and top- <br />soil removal will follow the outline of the refuse area in each <br />specific phase as depicted in Figures 2.2-7.15 through 2.2-7.45. <br />During the first five-year permit term, only Phase One construc- <br />tion and deposition will occur. The pile will not reach Phase One <br />final volume, but the topsoil will have been removed. Phase One <br />disturbance will be 6.8 acres refuse pile, 1.1 acres sedimentation <br />structures and 1.4 acres topsoil stockpile. The refuse disposal <br />access road will also be completed as shown on Figure 2.2-6.45. <br />After the foundation of the refuse pile has been made impermeable <br />and sedimentation structures are in place, a one to two foot thick <br />layer of coarse refuse (+4") will be deposited, forming a wick so <br />• that water in overlaying refuse may drain to the sediment pond for <br />testing and discharge. When coarse refuse to be used to construct <br />the internal drain is first generated, testing will be conducted to <br />indicate its durability. Results of these tests will be submitted <br />to CMLR upon receipt. If the requirements of CMLR are not met, an <br />alternate source of durable material will be provided. Discharge <br />of water from the sediment pond will be made only after all appli- <br />cable water quality standards are met. <br />The bulk of the material will then be placed upon the pile in one <br />to two foot thick lifts. The material will be compacted to 90 per- <br />cent maximum dry density based upon tests of the material after gen- <br />eration. If tests show that a 90 percent compaction level is not <br />achievable but that stability of the structure will be attainable <br />at a lower compaction level., Salt Creek will apply to CMLR for a <br />variance of Rule 4.10.4(3)(b). Leveling devices will be used <br />• <br />5/2/85 <br />