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<br />~. <br />~ ~~ <br />REVEGETATION GUIDELINES <br />1. After earth disturbance operations the following steps are <br />A. Side slopes should be flatter than 3:1. Slopes of 6;1 <br />flatter arc much more desirable for greater success in <br />re-establishment of vegetation and operation of equipmc <br />B. Excess water from adjacent areas should not be allowed <br />flow onto the area unless erosion control practices arc <br />implemented. <br />C. Length of slope should be properly controlled to prever <br />erosion. <br />D. Topsoil is needed on sites having exposed soil surface: <br />low in organic material and texture classification of <br />clay Loam or heavier. Tliis need increases significant] <br />if the soils are inherently dry, if the slopes are <br />greater than 6;1 and if the slope aspect is south or <br />southwest. Topsoil should be applied after shaping and <br />to a depth of 6 inches binding topsoil to existing soil <br />needed: <br />or <br />nt. <br />to <br />tilled <br />2, Fertilization <br />A. Fertilizer of not less than 40 lbs, nitrogen and 40 lbs. <br />phosphorous should be applied unless a soil analysts i dicates <br />sufficient amounts of these elements. Application of <br />fertilizers should be immediately prior to or at the t' e <br />of seeding. <br />3. Seedbed Preparation <br />A. The seedbed should be prepared i~mnediately following all <br />earth moving operations prescribed in the engineering a d <br />landscape design. <br />B. All rocks, trash and other debris that will interfere ith <br />seeding should be removed. Till the ground to a depth of <br />4 to 6 inches. If the seedbed is prepared immediately <br />following construction this operation can usually be omit <br />except on fresh cut areas that have not otherwise been <br />disturbed. Apply fertilizer, seed and mulch, if needed. <br />4. Mulching <br />A. A mulch may be needed to conserve moisture, prevent <br />crusting, reduce runoff and erosion and help establish <br />a plant cover. <br />B. Mulching material should be applied immediately before r <br />after seeding. <br />C. Either one of the mulching methods listed below would b <br />acceptable. <br />1. Grass hay or cereal grain straw should be used at <br />an application rate of 4,000 lbs./ac. of air dry ma erial. <br />At least 50% of the mulch by weight shall be 10 inc es <br />or more in length. Anchor mulch immediately after it <br />distributing with mulch crimper or disc plow, <br />