2009-05-22_PERMIT FILE - C1981041A (5)

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TABLE 13-5 ALTERNATE SEDIMENT CONTROL AREAS LOCATION & AREA RUN-OFF ALTERNATE SEDIMENT DESCRIPTION EXHIBIT ACRES ACRE CONTROL FEET RSS Substation A 6B 0.04A 0.001 Reclaimed, Seeded & Mulched RSS Substation B 6B 0.05 0.003 Grass Filter (Appendix 14-6) Southern RSS Substation B 6B 0.06 0.004 Grass Filter (Appendix 14-6) Northern Overland Conveyor 7B 0.15 0.004 A 1-2' high berm along the river Area between the creates a low area adjacent to the Colorado River and the highway which will collect runoff in highway frontage road an approximate 25x50' area, 2 inches deep. Overland Conveyor - 7B 6.15 0.077 This area is relatively level and Area along conveyor heavily vegetated. A berm with a between transfers 2 & 3 minimum height of 1' extends including transfer 2 most of the length of the area and baghouse. a straw dike will be maintained near the transfer 2 to furnish confinement of runoff. Runoff will accumulate in a depression between the belt and the river and in a depression at transfer 2. Water depth in the depressions is calculated to reach 4". Powder and Cap 8B 0.023 0.001 Reclaimed, Seeded & Mulched Magazine CRDA No. 1 - Topsoil 9B 2.1 0.075 Grass Filter (Appendix 14-6) Stockpiles 5 and 6 Overland Conveyor - 10B 16.50 0.261 The area is relatively level, heavily Area from Coal Canyon vegetated and a berm is in place drainage to the rail along the river. Runoff will loop. accumulate 10" deep in shallow area near south end T13-5-1 11/08