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Task <br /># Description Time Needed <br />months <br />1 Prepare isolation berm and collection ditches for North Pit. 0.5 <br />2 Strip topsoil from North Pit Area 1'. Store topsoil in stockpile. 0.5 <br />3 Mine North Pit Area 1. 10 <br />4 Strip topsoil from North Pit Area 2 and mine North Pit Area 2. 10 <br />5 Prepare isolation berm and collection ditches for South Pit. Reclaim <br />North Pit Area 1 an 2 and mine South Pit Area 1. 12 <br />6 Reclaim South Pit Area 1 Slopes and mine South Pit Area 2. 13 <br />7 Mine South Pit Area 3. 14 <br />8 Mine South Pit Area 4. 11 <br />9 Reclaim South Pit Area 3 and 4 Slopes and mine South Pit Area 5. 11 <br />10 Additional Production from Staging Area 9 <br />11 Reclaim Areas 5,4,2,1 and Staging Area. 2.5 <br /> Total montks 93.5 <br />The mining schedule is planned to minimize disturbance by reclaiming areas as additional mining <br />is undertaken. Note: If large contracts are awarded to the site, production could increase to the per- <br />mit maximum, thereby shortening the life of the pit. On the other hand, if contracts aze less than <br />anticipated, the life of the pit could be extended. This table is"based on a reasonable projection of <br />average production rates. <br />3. Hydrology and Sediment Control for Mining <br />The major hydrologic design item for this operation is to safely pass runoff from the irrigated pas- <br />tore land uphill from the operation to the west and north. The storm runoff will be controlled by a <br />set of ditches, isolation berms and a major storm water channel. The berms will allow the pit bot- <br />tom to serve as a sediment pond for all storm events within the permit azea. 1f the surrounding <br />watershed was allowed to enter the site this would not be feasible. The diversion ditches provide <br />the necessary isolation by carrying all upstream nmoff away from the site. <br />Cugnini 12/03 10 <br />