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_~_ <br />concepts: <br />1.) A11 areas to be reclaimed should be shap®d and graded sn that no slopes <br />will be steeper than 3:1. Where possible, flatter slopes are mt:ch more <br />desirable. ~•7hen shaping and grading, leave the area with a landform <br />that will be stable and which will drain naturally into existing drainage <br />channels vrithout starting any new soil erosion. It might be necessary <br />to construct a diversion ditch or sin_lar structure here and there in order <br />to keep rorater 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 o£ ~ inches of topsoil should be applied over all <br />areas to be revegetated. Topsoil could be salvaged from the overburden <br />but in this Casa 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 e~asting soil or clay surface and will <br />therefore help prevent air pockets an3 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 o£ fertilizer <br />application should be immediately prior to seeding unless eq:ipment is <br />designed to apply fertilizer during the same operation seed is applied, <br />4.) Seeding shall be done using a grass drill properly ecu3ppe3 to handle <br />the seed being planted. The follo;ring seeding mixture is recommended: <br />SPECIES VARIETY LBS. PiTRE LI~n; SEA/ACRE <br />i+Iestern wheatgrass Barton or Arriba 6,1y <br />Side-ea.ts grama Vaughn 1.8 <br />Fubescent wheatgrass Luna 3<6 <br />Indian Ricegrass --- 2.~ <br />5,) Treated area should be mulched using native hay mulch applied at 3000 <br />lbs. per acre o£ air-dry material. At least 50a of t h2 mulch by weight <br />s'rcould be 10 inches or'mare in length. Anchor the mulch using a straw <br />crimper or a farm disc with the discs set straight. Cri:cp the material <br />3 inches into the soil. All operations show d be across the slope, <br />Other af.proved mulching material such as excelsior matting can be used <br />in place of native hay mulch, <br />b,) A11 seeded and treated areas need t.o be protected from livestcck until <br />grass seeding is firmly established and site is stabilized. <br />