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~: • • <br />`.. <br />REVEGETATION GUIDELINES <br />The present mining operation at these locations have not disturbed <br />any "new ground" in many years. Since the mine activity is confined to <br />these areas, the revegetation guidelines address only new areas [hat <br />may be disturbed, or closures that are made. <br />After earth disturbance operations the following steps are needed: <br />A. Side slopes should be flatter than 3:1. Slopes of 6:1 or <br />flatter are much more desirable for greater success in re- <br />establishment of vegetation and operation of equipment. <br />B. Excess water from adjacent areas should not be allowed to flow <br />onto the area unless erosion control practices are implemented. <br />C. Length of slope should be properly controlled to prevent erosion. <br />D. Topsoil is needed on sites having exposed soil surfaces low in <br />organic material and texture classification of clay loam or <br />heavier. This need increases significantly if the soils are <br />inherently dry, if the slopes are greater than 6:1 and if the <br />slope aspect is south or southwest. Topsoil should be applied <br />after shaping and tilled to a depth of 6 inches binding topsoil <br />to existing soil. <br />2. Fertilization: <br />A. Fertilizer of not less than 40 lbs. nitrogen and 40 lbs. phosphorous <br />should be applied unless a soil analysis indicates sufficient <br />amounts of these elements. Application of fertilizers should be <br />immediately prior to or at the time of seeding. <br />3. Seedbed Preparation: <br />A. The seedbed should be prepared prior to seeding (see seeding <br />recommendations). If the area is to be left bare for longer <br />than a few months, a temporary cover should be established. <br />B. All rocks, trash and other debris that will interfere with <br />seeding should be removed. Till the ground to a depth of 4 ~ <br />to 6 inches. If the seedbed is orepared immediately following <br />construction, this operation can usually be omitted except on <br />fresh cut areas that have not otherwise been disturbed. Apply <br />fertilizer, seed and mulch, if needed. <br />4. Mulching: <br />A. A mulch may be needed to conserve moisture, prevent crusting, <br />reduce runoff and erosion and help establish a plant cover. <br />B. Mulching material should be applied immediately before or after <br />seeding. <br />C. Either one of the mulching methods listed below would be acceptable. <br />