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up for the entire perimeter in 6 to 12 feet lifts. Depending on the soil <br /> conditions met during mining,the excavation face may adjust between a <br /> 1H:1V and 3H:1V slope to bedrock.Temporary excavation slopes and <br /> temporary stockpiled material slopes may be steeper,as they are temporary. <br /> All slopes will be maintained for site safety and to minimize material erosion. <br /> Excavated mine slopes will be backfilled with backfill material and no mine <br /> slopes will remain. Mining of the aggregate material will progress down to the <br /> underlying shale bedrock. <br /> iii. Aggregate material will be excavated down to bedrock and stockpiled for <br /> aggregate processing. <br /> iv. Dewatering trenches,pump basins,ditches,and pumps will be installed prior <br /> to the excavation of aggregate material from any mine Phase.All mine Phases <br /> will include the dewatering trenches around the perimeter that will be <br /> placed at the toe of each successive 3H:1V mining slope. The aggregate <br /> material is ±36 feet deep. As each Phase is mined deeper, the <br /> dewatering trench will be lowered and moved laterally along the ±3H:1V <br /> slope and then the material will be dewatered to help dry the raw aggregate <br /> material in the center of the mine which will be excavated and removed from <br /> the pit.We are planning to mine and dewater each area in three lifts.The <br /> excavated raw aggregate material will be temporarily stockpiled near the <br /> portable aggregate processing equipment sites.When the aggregate material <br /> is processed, it will be available for sale,further processing at the wet plant or <br /> to be used by the asphalt hot plant as a part of the hot bituminous asphalt <br /> paving material. <br /> V. All aggregate material excavated from the mine Phases will be dewatered and <br /> dry mined. <br /> vi. Then each Phases aggregate mass excavation will be completed down to the <br /> bedrock subgrade and placed in a raw aggregate stockpile for future <br /> processing. <br /> vii. The mine area will be filled and compacted with the overburden material, <br /> wash plant fines, crusher fines and imported inert materials. <br /> d. Mine and backfill Schedule-The overall time needed to complete the mining and <br /> backfill is estimated to be 25 years. Maximum production is expected to be 300,000 <br /> tons per year. Due to market and economic considerations, mining could progress <br /> faster or slower than expected and more time may be needed for mining and <br /> reclamation of the site. <br />