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-2- <br />concepts: <br />1.) P11 areas to be reclaimed should be shaped and graded so that no slopes <br />will be steeper than 3:1. Where passible, flatter slopes are much more <br />desirable. lJhen shaping and grading, leave the area with a landform <br />that will be stable and which Trill drain naturally into existing drainage <br />channels trithout starting any new soil erosion. It might he necessary <br />to construct a diversion ditch or similar structure here and there in order <br />to keep water from concentrating, to hold runoff water, or to divert it <br />into existing natural drainage channels. <br />2,) Due to the severe limitations inherent in a clay surface for establishing <br />vegetation, a minimum of 4 inches of topsoil should be applied over all <br />areas to be revegetated. Topsoil could be salvaged from the overburden <br />but in this case it appe,~rs as though mostly all top soil will need to <br />be imported. Apply topsoil after shaping and grading is completed then <br />till the site to a depth of approximately 6 inches. This will permit <br />the topsoil to bind with the existing soil or clay surface and will <br />therefore help prevent air pockets and topsoil slippage. <br />3,) Apply fertilizer at a rate of approximately 50 lbs, of available nitrogen <br />and 50 lbs. of available phosphate (P2Q5) per acre. Time of fertilizer <br />application should be immediately prior to seeding unless equipment is <br />designed to apply fertilizer during the same operation seed is applied. <br />4,} Seeding shall be done using a grass drill properly equipped to handle <br />the seed being planted. The following seeding mixture is recommended: <br />S PEC I~:S <br />47estern wheatgrass <br />Side-eats grama <br />Pubescent wheatgrass <br />Indian Rice grass <br />VARIETY <br />Barton or Arriba <br />Vaughn <br />Luna <br />LBS. PURE LIVE SE ;D/ACRE <br />6,l, <br />1.8 <br />3.6 <br />2.5 <br />5.) Treated area should be mulched using native hay mulch applied at 3000 <br />lbs, per acre of air_dry material. At least 50~ of the mulch by weight <br />should be 10 inches or more in length. Anchor the mulch using a straw <br />crimper or a farm disc with the discs set straight. Cri-p the material <br />3 inches into the soil. All operations should be across the slope, <br />Other approved mulching material such as excelsior matting can be used <br />in place of native hap mulch, <br />6,) All seeded and treated areas need to be protected From livestock until <br />grass seeding is firmly established and site is stabilized. <br /> <br /> <br />