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i The mine operator will conduct a wet mining operation with the use of a mining clam shell type dredge and send material to the processing plant by a continuous conveyor system. The initial start of each phase will use earth moving equipment to remove the topsoil and overburden layers to expose the sand and gravel deposits (approximately six feet). The next six to eight feet of aggregate material will be removed by the same method until groundwater is encountered. When enough water surface and depth is exposed, the mining dredge will be floated and put into operation. The dredge barge contains a screen which separates out rock larger than 1/4 inch to be conveyed to the. processing plant. A floating conveyor system of approximately 300 to 1200 feet will be used for moving material to dry land (reclaimed area), from there field conveyors will move material to the processing plant. Sand and rock less than 1/4 inch will be pumped in a slurry pipeline to a previously mined shoreline and used to reduce the size of the lake. The split of material will be approximately 27% rock to the processing plant and 73°~ sand for re- filling. Resource materials will be processed and batched at a 40-acre plant site located at the north end of the property, between the Atchinson Topeka Santa Fe Railroad and U.S. - Route 50. Processing will consist of washing, screening, crushing, stockpiling, and loading into trucks and railroad cars. Some unprocessed materials may be utilized for particular projects. These materials would consist primarily of ungraded pit run and embankment fill materials. In addition, the plant site will contain a concrete ready-mix plant and ahot-mix asphalt plant. As the mining moves away from the processing plant in later phases, additional field conveyors will be installed along the south side of the railroad tracks. An overhead conveyor on a bridge will take the material over the railroad tracks and into the plant site. The clam shell dredge has a single 10.4 cubic yard bucket and will operate 24 hours per day. As the clam shell digs down, the underwater material will collapse toward the hole at a 1:1 repose. To prevent a sand and gravel collapse beyond the final shoreline of the lakes to remain, the dredge will not get closer than 60 to 80 feet to the staked shoreline. The slurry pipe pumping the fine material from the dredge will then build back the '~ shoreline at the 3:1 and 2:1 configuration. The road access to U.S. Route 50 at the north end of the permit area and processing plant will be used to transport materials from the plant site to off-site projects by truck. A proposed rail spur and loading facilities on the south side of the processing plant will allow material to be shipped via the Atchinson Topeka and Santa Fe Railroad. D-2