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Corey Heaps <br />CAM - Colorado, LLC <br />November 30, 2010 <br />Page 27 <br />in length, is described as having a minimum width of 12 feet. It appears that the road is <br />intended to function as a two -way road, carrying all traffic entering and exiting the <br />Loadout facility, including highway -legal coal haul trucks. The proposed narrow width <br />of Haul Road #1 is insufficient to allow for two -way traffic. Please revise the width to an <br />appropriate dimension which will allow traffic moving in opposing directions to pass <br />safely. The local governing agency, i.e. Mesa County or the City of Fruita, likely has <br />minimum width requirements for two -way roads. <br />118. Page 2.05 -10 describes the proposed methods of haul road construction. What is the type <br />of borrow material to be used to construct embankments? The proposed lift thicknesses <br />of 12" may be too great to achieve the desired compaction, unless the material includes a <br />high percentage of cobble -sized material. AASHTO T99 is appropriate for use with fine - <br />grained soils. However, for road base surfacing, T180 is the preferred method. <br />The Division is willing to meet with representatives of CAM to discuss or clarify this letter. If <br />you would like to schedule a meeting or if you have questions, please contact me. <br />Sincerely, <br />P 2301A-111 <br />Michael P. Boulay <br />Environmental Protection Specialist <br />Enclosures <br />C: Jim Stover /J.E. Stover & Associates <br />Denver File/DRMS <br />