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<br />CJ:> <br />~ <br />~ <br />C' <br />':J <br /> <br />......' , <br /> <br />CHAPTER IV <br /> <br />CONSULTATION AND COORDINATION <br />COMMENT LETTERS <br /> <br />RONALD JOHNSTON, PROJECTS MANAGER <br />JULY 16. 1990 <br /> <br />PAGE 5 <br /> <br />adequate flows in existing cross-drainage structures.- (Environmental <br />Assessment, BOA and Department of Agriculture, 19n, Chapter B. pages <br />86-87.) <br /> <br />Who is responsible for maintaining the cross-drainage facilities? <br /> <br />Who will be responsible for maintaining the detention ponds and detention ditches when <br />built? <br /> <br />A solution is to finance the Grand Junction Drainage District to maintain all these features <br />relating to drainage in this area. <br /> <br />Also, a solution is to cement line the Stubb Ditch instead of piping it This would continue <br />its use as an emergency overflow as it has in the past <br /> <br />It is obvious this part of the DEA is lacking in answers and solutions. More detailed study <br />and resolutions are required which could be examined in a Draft Environmental Impact <br />Statement. <br /> <br />It is stated on page 13, paragraph 14, that $4,200,00 is the estimated cost according to <br />the FEIS for the construction of the detention dams and ditches. This is a 1985 figure. <br />The recommended plan in the DEA eliminates this cost. This deletion is not figured or <br />included in the cost effectiveness determinations of the recommended plan. <br /> <br />Comment: <br /> <br />Chapter HI, page 25, paragraph 4: Threatened and Endanaered Scecies, Present Conditions and <br />Imoacts and on page 26, paragraphs 3 and 4. <br /> <br />There is no reference to the instream flow requirements of the endangered Colorado <br />squawfish in the fifteen-mile reach of the Colorado River. There is no reference to the <br />most current report written for the U.S. Fish and Wildlife Services: Final Report, May 1989, <br />"Biologically Defensive Flow Recommendations for the Mainten::nce and Enhancement of <br />the Colorado River Squawfish Habitat in the '15.Mile' Reach of the Upper Colorado River <br />During July, August, and September" by LR. Kaeding and 0.8. Osmundson. <br /> <br />This work recommends a .flow window. of 700-1,200 cJ.s. during July, August, and <br />September be maintained in this particular stretch of the Colorado River. <br /> <br />It must be assumed that the full historic diversions from the Colorado River will continue <br />under the conditions stated in this DEA. It is important that return flows from irrigated <br />fields and lateral ditch termini are allowed to travel to the river as rapidly as possible 10 add <br />to the instream flow requirements of the squawfish. <br /> <br />Will the BOA curtail diversion amounts? <br /> <br />Will the potential .saved" 1,760 cubic feet be used elsewhere? <br /> <br />53 <br />