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C- 2010 -088 Fruita Loadout <br />3'd Preliminary Adequacy Review (MLT) <br />20 -Jul -2011 <br />Page 6 of 10 <br />Please incorporate the comments from the City of Fruita Engineer into the PAP. <br />51b.Page 2.05 -13, Haul Road Surfacing, says haul roads will be plated with 10 to 20 inches of <br />gravel surfacing. Please make this description consistent with what is shown on typical <br />sections on Map 15 (including thicknesses of pit run and 1 -1 /2" road base). <br />Map 15 and the text on page 2.05 -13 were revised. Item resolved. <br />51c.Page 2.05 -13, Haul Road Maintenance, mentions road shoulders (none are currently <br />proposed, but possibly should be) and paved surface (none proposed). Please review this <br />paragraph to ensure it accurately describes what is proposed. <br />Text regarding road shoulders and pavement was removed from page 2.05 -13. This <br />portion of the item is resolved. <br />There is language in paragraph (c) on page 2.05 -8 that is inconsistent with haul road <br />designs described elsewhere in the permit. Please revise paragraph (c) to be consistent <br />with road width and road base thicknesses as revised on Map 15. <br />Haul Road #2 <br />51d.The last paragraph on page 2.04 -2 describes coke particulate matter (10,000 cy) that was <br />buried in trenches. Haul Road #2 and the Rail Loop alignments both cross the coke fines <br />area. Has any type of geotechnical investigation been done to ensure this is a suitable <br />foundation for haul road and rail traffic? Is there a minimum thickness of embankment <br />material that will be required to "bridge" across any unsuitable material? <br />CAM responds that no geotechnical investigation has yet been conducted, but that <br />necessary geotechnical work will be performed prior to construction. Please incorporate <br />any subsequent modifications into the PAP. <br />51 e. The Haul Road #2 Profile is shown on Map 15. Are the buried coke fines close enough to <br />the surface that excavation and replacement with suitable embankment material will be <br />required? <br />CAM responded that the coke fines will most likely have to be excavated and replaced with <br />suitable embankment. A discussion has been added to page 2.05 -9. Item resolved! <br />51 f. Page 2.05 -9 describes what will be done with unsuitable materials encountered in <br />construction of the Rail Loop. Please use similar language to address the handling of <br />unsuitable materials encountered in construction of Haul Road #2. <br />A general statement regarding unsuitable subgrade material has been added to page 2.05- <br />9. Item resolved. <br />Rail Looy <br />51 g. On page 2.05 -9, Design and Construction (Rail Loop), in the third paragraph, please revise <br />"pond 6" to read, "Evaporation Pond No. 6 ", consistent with the map nomenclature. <br />The text has been revised. Item resolved <br />