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• . rock fill consisted of durable (non-erodible) material. The fill was placed as <br />shown in Exhibits 7B and 22. The size gradation was in accordance with the <br />Army Corps of Engineers' specifications, since a permit was necessary for <br />placement of the material. <br />ROADSIDE NORTH PORTALS (RSN) <br />Drainage above the RSN operations is collected in diversion ditches and <br />transferred around the operations area to the east and the west. Drainage within <br />the reclaimed area is directed to one of two locations: Pond 13, or the sediment <br />fence. A berm transects the reclaimed area is a northeasterly direction. Run-off <br />below the berm is directed to the sediment fence and run-off above the berm is <br />directed to Pond 13. Runoff from the topsoil piles 1 and 2 is directed to Pond 13. <br />See Tab 14 for a description of the ditches to be installed after the diversion <br />ditches are reclaimed to accommodate storm runoff from the primary drainage <br />• chutes originating on the steep slopes above the reclaimed area. <br />Areas around the RSN operations area that were covered by alternate sediment <br />control include the powder and cap magazines. Further descriptions of these <br />areas is given in Table 13-5 with backup information in Appendix 13-3. <br />• 13-10 (Rev. 12/02 ) <br />