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Ammended ESHIHIT "D" MINING PLAN The proposed land use is for gravel a.nd overburden extraction. Exhibit "C-2 & C-3", Pre-t4ining and Mining Maps, illustrates the location of the primary activities in relation to the surrounding area, and the ultimates ~ slopes which will be representative across the mining area. The maximum slopes will be at a ratio of 3 horizontal to 1 vertical. Based on preliminary investigations it is estimated the site will yield about 800,000 cubic yards of material. It is anticipated that approximately 700,000 cubic yards of the total will be gravel. The operation will be limited to weekdays between the hours of 7:00 a m and 6:00 p.m. Operation of the pit will occur year around. Total life of the pit is dependent upon the area's future gravel and soil needs. It is ~ estimated that the total mining activity would be approximately 15 years. The pit does not have any surface water or ground water present due to ~ the low water table at the mining site. The area is not prone to flooding tram adjoining properties. A holding pond for all water run off is located on the South West corner (see Water Information & Drainage Plan, Exhibit "G"). ~ Approximately 46.1 acres of the total 89.7 acre area has been identified as a gravel source. Prior to actual gravel extraction, overburden and top soil will be dazed into piles around the inner perimeter of the ~ actual working area, after a 30' buffer zone has been established around the pit perimeters. The topsoil will be excavated and s*,ockpiled prior to excavation of overburden material. Each rrtaterial type will be stockpiled seperately. This will allow access to topsoil during site reclamation. Gravel extraction will begin on the ground surface near the ~ Easterly line of the identified mining area, and proceed Westerly. ~ Mining will be completed by Zones. Zone 1 will be the. south east corner ~, Lis, of the pit area moving wester-Iy Material will be stockpiled along the \~h', . southern edge of the mining area, just north of the buffer zone. Zone 2 will be the north east corner moving westerly. Material will be stockpiled along the northern edge just south of the buffer zone. Zone 3 will be the north west quadrant moving north-westerly. Material will be stockpiled to the north and west edge just east of the buffer zone. Zone 4 will be the south west quadrant moving south-westerly. Material will be stockpiled on the south and west edges of the area just east of the buffer zone. As one zone is phased out, the extraction will move into the next zone. The placement of the buffer zone around the perimeters of the property should provide ample room to avoid erasion offsite, as most of the current runoff is toward the south west corner of the property into an existing pond. and the gravel extraction process will not change the existing patterns. Material will be removed to a depth of about 20 feet ` from the existing ground surface, utilizing front end loaders. Slopes will be maintaing at 3:1 during mining and reclamation. Though there is usually a shale layer underlying gravels in this region, a uniform shale floor is rarely encountered, Where shale is uncovered, ripping, backfillin9. or grading will occur so shale is not left exposed.