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S~ ~mw ter lNana¢em tPl 01/04/99 <br />• quarry areas. The quarry floors will be exposed rock grading 2-3% away from the bottom <br />quarry face to enable free draining of any rainfall during production.. The quarry floors <br />will remain graded slightly towards the south where the storm water berms and ponds will <br />remain to collect any runoff. An estimated +35% of the quarry floors will be reclaimed to <br />the extent possible based on the availability of top soil and fines and the success of the <br />topsoil admixture. The quarry floors will be covered with a minimum of 12 inches of <br />topsoil or admixture. Straw mulch may be incorporated into the top 4" of the planting <br />medium to enhance moisture retention. Such straw mixes will be tested. After placement <br />of the available topsoil and admixture, the azea will be seeded, fertilized and mulched. See <br />DOW letter at the end of exhibit regarding applicant's commitment to revegetating the <br />quarry azea, granite benches. <br />Crossings <br />The 75 cubic yazds of reinforced concrete used in the 2 pilings of each crossing across the <br />Tallahassee Creek will be removed, broken and buried in gravel area ID. <br />2.4 Ripping Compacted Surfaces <br />Reclaimed roads, railroads and stockpile areas and any other compacted surfaces will be <br />ripped to varying depths of 6" to 12" depending upon the degree of compaction prior to <br />the placement of topsoil. <br />2.5 Topsoil Replacement <br />• While salvaged topsoil is expected from depths between 6" and 12", some areas will have <br />no topsoil to salvage. (Exhibit I) Replacement topsoil depths comparable to those <br />salvaged, or an average of 9" evenly placed, is expected. Topsoil and/or admixture <br />applied to quarry benches will be 12" deep. Since the quarry areas aze more topsoil <br />deficient than the gravel bar areas, experimentation with mixing fines from crushing and <br />screening for a topsoil admixture will be conducted. If successful, the topsoil for the <br />quarry area may be supplemented with the admixture. Topsoil used on top of all berms <br />and the gravel bar surface reclaimed aze expected to be only topsoil. <br />2.6 Seedbed Material (Topsoil) Sampling and Fertilizer Selection <br />A laboratory will be contracted +15 days in advance of any sampling of newly reclaimed <br />and seeded areas. Two composite samples from 0" to 6" and 6" to 20" depths will be <br />taken. Samples will be taken with either a the spade or soil auger free of foreign <br />substances or rust. No galvanized tools will be used. About 1 quart of material will be <br />collected for each composite sample. The sample locations will be noted on a project <br />map. The laboratory will be briefed on the following items for each sample or appropriate <br />set of samples: <br />plant species to be established, <br />type of seedbed preparation techniques, <br />type of mulching practices, <br />approximate slope, <br />problems or conditions, <br />past and future land use. <br />Page 32 <br />