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Richard D. Lamm <br />Governor <br />• III IIIIIIIIIIIII III <br />999 <br />DEPARTMENT OF NATURAL RESOURCES <br />David H. Getches. Executive Director <br />MINED LAND RECLAMATION DI\ <br />DAVID C. SHELTON, Director <br />December 2, 1983 <br />Mr. Don Carroll <br />Weld County - Department of Engineering <br />933 North 11th Avenue <br />P. O. Box 758 <br />Greeley, Colorado 80631 <br />Re: Lehr Pit - File No. 83-213 <br />Dear for. Carroll: <br />~~ <br />I have reviewed this application for adequacy and have the following questions <br />and comments which must be addressed in detail at least 5 days prior to the <br />February 22-23, 1984 meeting of the t4ined Land Reclamation Board. <br />A. Exhibit D - Mining Plan <br />1. The soil inventory for this site indicates that the proposed Lehr <br />Pit contains Cascajo gravelly sandy loam. The surface layer is dark <br />grayish brown gravelly sandy loam, 3 inches thick. The next layer is <br />calcareous, very gravelly loamy course sand, 21 inches thick. In order <br />to provide an appropriate growth medium for the proposed reclamation <br />plan, the staff recommends that, prior to mining, the top 6 inches of <br />gravelly sandy load be stripped and stockpiled. This results in the <br />salvage and stockpiling of 806 cubic yards of the uppermost 6 inches of <br />soil per acre. <br />2. Please describe where the topsoil stockpiles will oe located. <br />3. Topsoil stockpiles must be graded and contoured to reduce erosion <br />problems and facilitate planting. Stockpiles which are to remain for <br />more than one growing season must have a grass cover crop planted to <br />further reduce wind and water erosion problems. <br />4. The staff understands that grading will be done concurrent with <br />mining. The staff recommends that, as mining is completed, in addition <br />to grading and where there will be no additional disturbance, the <br />operator replace the topsoil and seed the area. <br />5. Please state what the maximum number of disturbed acres will be <br />prior to initiation of final reclamation. <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />