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4. Based on the contours depicted in the plan view on map 25C, the roadside ditch <br />constructed adjacent to the cut slope side of the South Taylor Haul Road appears <br />to flow uninterrupted (i.e., no cross-culverts diverting the flow eastward beneath <br />the haul road) for its entire length. The ditch eventually reaches a low point, and <br />appears to cross the runaway truck ramp. There is no culvert or crossing <br />indicated on the map where the ditch crosses the runaway truck ramp. Please <br />review the details provided for this location, and ensure that Map 25C <br />reflects the as-built conditions. Please describe how and where water flows <br />from the roadside ditch in the construction notes. <br />This concludes the preliminary adequacy review of the Colowyo Technical Revision 86. <br />The proposed decision date for TR-86 is 4 September 2010. The Division requests <br />Colowyo's responses no later than 30 August 2010 to ensure this decision date is <br />met. Please contact me at (303)866-3567 X8145 if you have any questions or comments. <br />Sincerely, <br />James R. Stark <br />Environmental Protection Specialist <br />cc: Sandy Brown <br />Kurtis Blunt