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f~. <br />4 <br />PHONE 411'C 71C <br />November 20, 1979 <br />James B. McArdle <br />Mined Land Reclamation <br />1313 Sherman Street <br />Denver, Colorado 80004 <br />NOV 261979 <br />•,., ~- <br />Re: Suburban Sand & Gravel Co. <br />Road Runners Rest II <br />Your File No. 79-195 <br />Dear Jim: <br />We answer your November 13 letter by the numbers as set out in that letter. <br />A. 1. Our best estimate aC this time is spring 1980. <br />2. While one or two houses are within 200 feet of the affected land line, <br />no house is within 200 feet of the excavation line. Please refer to <br />map Exhibit D-1. This, of course, does not include house located on <br />the affected land and owned by Suburban. <br />3. Please refer to map Exhibit D-1. Setback is that distance which we <br />must move inward from the property line. The small amount of material <br />necessary to resoil the cut slopes above the water will be stored on <br />this area. A unit length of setback must be able to hold a unit length <br />of slope 1 foot deep in soil, thus a slope of 32 feet unit length <br />1 foot deep would be 32 ft. 3. A setback of 20 feet unit length would <br />have to be piled 1.6 feet deep to hold the necessary amounts to resoil <br />the slope discussed. Any excess over this amount is a waste. <br />4. Yes - see page 7, line 5. <br />B. 1. We expect to resoil stripped lands above water with between 10 and 14 <br />inches of existing topsoil. <br />2. Yes - thank you. <br />3. Yes - please refer to page 17. We appreciate your suggestion for <br />trees and shrubs as well as your ideas for planting and watering. <br />4. Yes. <br />5. Except for about 5 acres in the southeast corner closest to Brighton <br />Road, we believe the entire property is in the 100-year flood plain. <br />I believe a map showing the 100-year flood plain can be obtained <br />from the Division of Water Resources in your building. <br />6. We feel that a 100-foot buffer is sufficient when the river is at an <br />attack angle and that 75 feet is enough when it is not. Our plan is <br />to create some gentle elevation increases along the river (see Map D-1) <br />at critical locations and to rip rap with large size cobble in those <br />locations. <br />• SU ~II IIIIIIIII"IIIII D61-MIX <br />~ Sand and Gravel Co. <br />ROY f. CAMPBELL, Preaidenk <br />5360 WAD9WORTH ~~ <br />ARVADA, COLD. BDDD2 f ~°~"'~""~ ~ "- <br />