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Coulson Excavating Company, Inc. - Bonser Gravel Pit Exhibit E -Reclamation Plan Il that is should take about 1.5 days to evaporate that amount of soil moisture under clear skies, then moisture content measurements should be made at the end of the first day and every few hours during the second day. If the soil moisture becomes too dry during compaction (1 % dry of optimum) as predicted from the charts in Appendix Il, then a volume of water calculated to raise the moisture content by 1 % will be applied evenly over the entire lift surface. Topsoil and Overburden Handling As shown on Figure 1: Exhibit D, gravel extraction is expected to proceed sequentially from south to north, from Pit 1, to Pit 2, then to Pit 3. The total overburden (topsoil + subsoil) volume that will stockpiled for the 23.3 ac of Area I is about 94,108 cu yd, about 43,273 cu yd of topsoil and 50,835 cu yd of overburden. This stockpile will be approximately 2,101 ft long, 20 -30 ft high and 40 - 60 ft wide, with 1: I side slopes. Topsoil and overburden removal will begin one year after permitting, with gravel removal starting 30 to 60 days later. Approximately 1 - 2 ft of topsoil and 0.~ - 1.5 ft of subsoil will be salvaged and used in reclamation. Salvaged overburden will be placed on top of the compacted liner throughout the grave] pit azea. Prior to gravel extraction topsoil will be stripped to about I.0 ft and subsoil to about 1.5 ft (a 2.5 ft thick layer) and initially stockpiled along the north side of the entire gravel pit. After the first 23.3 ac of Area 1 has had gravel extracted, overburden will be directly replaced back into the pit where the gravel has been extracted. Subsoil will be replaced creating a layer about 1.5 ft thick in all areas. Salvaged topsoil will be put back on top of the subsoil creating a topsoil layer about 1.0 ft thick in all areas. The haul road will also be reclaimed to pasture grass by disking of the road, and placing 1.0 ft of topsoil on top of it. After topsoiling, the land will be seeded with a native seed mix. The topsoil and subsoil stockpile will be seeded with the seed mix below, hay mulched and crimped to m;nim;ze erosion. An aggressive mowing program will control noxious weeds on the stockpile. Seeding and Fertilizing The current vegetation type on the site is pasture and hayfields dominated by smooth brome (Bromopsis inermis). Hay is harvested from the fields 3 or 4 times each year starting in early June. Restoration will consist of seeding the area with native grasses and drought resistant alfalfa. The recommended seeding method is by drill, and seeding rates assume this method. The topsoil and subsoil stockpile will be seeded with the seed mix in Chart 1, with hay mulched and crimped to minimize erosion. An aggressive mowing program will control noxious weeds on the stockpiles.