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- <br />.. -.... ~ _. ..: v ... .. _L... .. . <br />4 ~ Dorchester Coal Company <br />United Bank of Arapah« Bldg. <br />Suite J00 <br />9JS0 East Arapah« Road <br />. Englewood. Colorado 80112 <br />Writer's Direct Dial Number <br />(3071 779-8444 <br />January 10, 1983 <br />Ms. Carol Russell . <br />~4ined Land Reclamation <br />1313 Sherman Street - Suite 423 <br />Denver, Colorado 80203 <br />Re: Minor revision for light-use access roads <br />Dear Carol: <br />. ... .- .. .,. r <br />Daily maintenance and refueling is required for the pump on the north <br />entry dewatering well. This pump is located approximately 250 feet <br />• from an established road. Dorchester Coal Company requests permission <br />to construct a light-use access road from the existing road to the pump. <br />The approximate location of this road is shown on Fioure 1. <br />This proposed road would be located on a gently sloping plateau. No <br />surface drainage channel will be crossed. Thus, no culvert will be needed. <br />A California-type drain is proposed at the junction of the light duty road <br />and the existing road. <br />Because of the gentle, steady slope of the terrain, no cut and fill will <br />be required for road construction. Topsoil along the road corridor and adjacent <br />to the pump area will be stripped to a detph of approximately 12 inches. <br />This topsoil will be hauled to the designated stockpiles west of the refuse <br />dump. Drainage ditches will be constructed along both sides of the road. <br />Ditches will connect with the drainage system of the existing road. Disturbance <br />of vegetation adjacent to the road cut will be minimized. <br />It is anticipated that road surfacing will consist of approximately 4-6" <br />of minus 3/4" gravel. CBR tests will be conducted, if necessary, to determine <br />the suitability of this proposed surface. Acid or toxic forming substances <br />• will not be used for road surfacing. <br />A typical cross-section for the proposed light-duty road is shown on Figure 2. <br />The approximate alignment of the road is shown on Figure 3. <br />It is contemplated that the mine dewatering system will remain in use for <br />the life of the mine. The proposed light-duty road will be closed to <br />vehicular traffic immediately following decommission and removal of the <br />mine dewatering equipment. The roadbed will be ripped, plowed and scarified. <br />I' <br />