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<br />tort' & Evaluation <br />Joe Craig , <br />Pioneer Sand Company -Pit <br />5000 N. Pt~rk Drive <br />Colorado :>prings, CO 80907 <br />599-81Go <br />NW1/!~ Sec. 22, T17S, R65t•! 1 <br />EROSION CONTROL: <br />1.} Grading operations should be limited to areas which will be developed <br />immediately. Areas which will not be mined until a later date should <br />be left in its native condition. <br />2.) Sediment from construction operations should not be allowed to leave <br />the site, <br />j.) Duel: should be controlled by aprinklin~ during construction operations, <br />I~.) All disturbed areas should be reseeded to native vegetation or other- <br />~wis~s protected. <br />5.) Slopes should be graded j:1 or flatter for ease of establishment. <br />CRITICAL AREA TRP,ATN~IT: <br />Seedbed. Preparation - <br />1.) Remove all rocks, trash, and other debris that will interfere with seed- <br />ing, site utilization and maintenance. <br />2,) Ti=~1 the ground• to a depth of ~+ to 6 incher.. If the seedbed is prepared <br />immediately following construction, this operation can ueua:lly be omitted, <br />except on fresh cut areas that have not otherwise been disturbed. <br />j,) Apply fertilizer: 40 pounds Total Nitrogen/Acre <br />40 pounds Available Phosphate/Acre <br />!l,) Stockpile top soil to use later on areas that will be reseeded. The minimum <br />depth for topsoil shall be at Ieast j inches. <br />Seed 8: Seeding - Methods - <br />1.} Drills <br />Proper seeding equipment should be used on critical sreas. A grass drill <br />its recommended. The drill should be equipped with a satisfactory feeding <br />mechanism, agitator, double disk furrow openers end packer wheels. <br />2,) H.ydraulic Equipment <br />This is an acceptable method bait should ordinarily be restricted to areas <br />inaccessible to drills. If hydromulch is to be applied, the seed should <br />be applied in a separate operation prior to mulching. <br />