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Prior to any mining taking place in the expansion area, two topsoil berms will be created in order <br />to create a visual and audio screen in areas of special concern. The first berm will be built along <br />the northern boundary between the operation the Braun residence. The second berm will be <br />located on the flat area on the top of the hill towards the southeast end of the expansion area near <br />where the road which defines the eastern boundary of the expansion terminates. These two areas <br />have been outlined as special areas of concern because of the proximity of houses in these two <br />areas. Both berms will be built to a height of ten feet with 3H:1 V slopes. The berms will be <br />immediately seeded with a temporary seed mix since they will be present for more than one year. <br />These berms are shown on Map C-2. The Braun berm will store 3400. The remainder of the <br />topsoil will be placed on fully regraded flat areas or slopes in the existing pit. <br />Expansion Mining Details <br />Mining will progress in slices as shown on Map C-3, which shows the cross sections of the <br />mining plan. The entire hillside along the western edge of the expansion will initially be stripped <br />of topsoil and overburden. The dozer will then begin pushing from the crest of the hill towards <br />the pit. No blasting is needed to move the in place material. Material will be pushed down the <br />initial steep slope until a uniform 3H:1 V slope is established. This slope will be the final <br />reclamation slope angle. The 3H:1 V slope will continue to be pushed back towards the ultimate <br />mining limits until they are reached. The first portion of the final reclamation surface to be <br />exposed is the center of the mining area. This and all final slopes will be established as soon as <br />possible to provide timely reclamation. The northern half of the mining area will then be <br />completed. At this point, the primary direction of mining will be towards the south. Again, as <br />the final reclamation surface is exposed, it will be prepared for reclamation. <br />Subsequent stripping operations will be very limited in duration. Prior to the removal of a slice <br />of gravel, the topsoil and overburden will be removed from the top edge of the slope. Access for <br />stripping operations will be from the 3H:1 V mining slope or the existing access road which <br />borders the mining extents. The stripped material will either be immediately used for <br />reclamation elsewhere in the pit or be stockpiled. All stockpiles that are semi-permanent (1 year <br />or more) will be seeded within 2 months of construction to prevent erosion. <br />Vagneur Pit June 07 D-4