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' Inventory ~ Evaluation. <br />~'~!' '.Y~~ Joe Craig i <br />Pibneer Sand Company -Pit ; <br />5000 N. Park Drive <br />Colorado Springs, CO 8090 ' <br />599-81oc~ <br />NW1~(y Sea. 22, T1~S, 8651.1 1 <br />c <br />EROSI01r CONTROLS <br />1,) Grciding operations should be limited to areas which will be developed <br />imcoediately. Areac which will not he mined until a later date should <br />be left in its native c~~ndLYic~. <br />2.) Be~iimesit from aonetruoti4n 9}~arrttione'should not be allowed to leave <br />thin Bite. <br />3.) Dust should be controlled by eprinklln~ during construction operations, <br />4,) Al:~: disturbed areas should be reseeded to native vegetation or other- <br />•wiae protected. <br />5.) Slopes should be graded 3:1 or flatter for ease of establishment, <br />CRITICAL AREA TRRATMF.NT <br />Seedbed Preparation - <br />1,) Remove all rocks, trash, and other debris that will interfere with seed- <br />in;, Bite utilization and maintenance. <br />2.) Ti:Ll the ground to a depth of 4 to 6 incher,. If the seedbed is prepsred <br />imcaediate).y following construction, this operation can u¢ua.11y be omitted, <br />ex<:ept on freeh cut areas that h¢ve not otherwise been disturbed. <br />3,) Apply fertilizer: ly0 pounds Total Nitrogen~Acre <br />1~0 pounds Availablo Phosphate/Acre <br />lr.) Stockpile top soil to use later on areas that will be reseeded. The minimum <br />de)sth for topsoil shall be at least 3 inches. <br />Seed & Beetling - Methods - <br />1,) Dri.lle <br />Proper seeding equipment should be ueed on critical areas, A grass drill <br />ie recoaunended, The drill should be equipped with a satisfactory feeding <br />moc;hanism, agitator, double disk furrow openers and packer wheels, <br />2,) ~iraulic Equipment <br />Th::e is an acceptable method but should ordinarily be restricted to areas <br />instccessible to drills. If hydrosnulch 1¢ to be applied, the need should . <br />be applied in a separate operation prior to mulching. ~~ ' <br />