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topsoil until it can be directly placed on areas ready for reclamation; however, when necessary, <br /> topsoil will be stored into either berms or the stockpile area as shown on Map C-2. <br /> Dewatering will be conducted throughout the mining operation's life. Following final topsoiling <br /> and revegetation, the pit pump(s) will be removed. Reclamation will be conducted concurrently <br /> with mining to minimize disturbed ground. <br /> In both phases reclamation will consist of backfilling and grading slopes to variable conditions <br /> as shown on Map F-1. Slopes will be no steeper than 3H:1V to at least 10 feet below the <br /> anticipated water level of the groundwater lakes. Backfilling of Area A will allow for the <br /> development of wetlands in that area prior to the disturbance of wetlands elsewhere onsite. In <br /> the event that the ditch reroute does not occur, the reclamation of the site will create two lakes <br /> as opposed to one, leaving the Bernudy Ditch and existing wetlands undisturbed. <br /> 3. Topsoil and Overburden Handling <br /> Topsoil and overburden handling will be identical for all Phases and Options. <br /> It is not anticipated that any topsoil will need to be imported for the reclamation process, even at <br /> the point of greatest disturbance. The creation of groundwater lakes will lead to an excess in <br /> both topsoil and overburden. <br /> Topsoil and overburden stripped during mining will either be stored in the temporary stockpile <br /> area or will be directly placed as part of final reclamation. Topsoil and overburden will be <br /> maintained in separate stockpiles in the temporary stockpile area and berms. Table E-3 outlines <br /> the topsoil and overburden material balance calculations during reclamation and during the <br /> greatest disturbance area scenario. Excess overburden or topsoil generated during mining will <br /> be placed in reclaimed areas or shipped offsite. Overburden will not be stripped from berm or <br /> road areas. Topsoil stripping and replacement volumes are based on an average topsoil depth <br /> of 18 inches. Overburden stripping is based on two feet of overburden on site. <br /> Table E-2. Topsoil and Overburden Material Balances During Reclamation <br /> Material Material Note <br /> Generated by Required for <br /> Mining(CY)' Reclamation <br /> (CY)2 <br /> To'soil 87,120 27,100 <br /> Overburden 116,160 150,100 Excess to•soil used to au•ment backfill. <br /> 'Topsoil and overburden stripped during mining.Based on soil survey thicknesses and area mining <br /> experience.Total at the conclusion of a given phase. <br /> 2Topsoil or overburden needed to reclaim disturbed areas in said scenario.Total at the conclusion of the <br /> given phase.Excess topsoil used as general backfill to achieve organic lake shore appearance. <br /> North Hangs <br /> December 2024 E-2 Lewicki& Associates <br />