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III II~II~'ll'~II III • <br />sss <br />~z:c <br />;Ci~i <br />July i, 1981 <br />*lr. John Hici®an <br />Nubile Premix Concrete Inc. <br />1590 W. 12th Av. <br />P. 0. Box 5183 TA <br />Denver, Colorado 80217 <br />RE: Revegetation program for the Speciflcttion Aggregate9 Quarry <br />File: IJ74-4 <br />Dear John: <br />This ie in answer to your letter dated June 30, 1981. <br />1. The projected growth time table for grasses is 3-5 years and trees is 10 <br />years on the quarry benches. <br />2. Advantages of changing the width of the quarry benches from 20 feat to <br />30 feet: <br />a. easier to manuver on benches to plant grace and trees. <br />b. plaana will establish letter on gentler elopes. <br />c. Water will run towards the face and therefore less water <br />erosion when area is graded in. <br />I also recommend that you do your reclamation in phases so that you c:liminete <br />having a large acreage to reci~i.n at one time. <br />Sincerely, <br />Jasea L. Schmieding <br />Reclamation Specialist <br />JLS/jm <br />/~ <br />