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.- ...... CJ'l (,)l 25. Comment: Page III-II, last paragraph. - We suggest that irriga- tion for quick establishment of vegetal cover be included. ~: A statement as to using irrigation to assist,with the reestab- IISnment of native vegetation in borrow areas, has been added to the paragraph immediately following the one referenced. 26. Conunent: Page III-19, paragraph 3, sentence 1. - We feel imple- mentation of the units proposed in the program could increase agricul- tural production in the upper basin up to 25 percent. The Bureau 1 s 1974 report on the Minidoka Project irrigation management service's program listed a 13 percent increase in crop yields (page III-59). Reply: The reference is incorrectly cited. The Minidoka Report stated there was a 13-percent increase in return revenues resulting from increased crop yields. For a few local areas such as Grand Valley or the Uinta Unit, there would be some increase in crop yields, but if the whole Upper Colo- rado River Basin is considered, the percentage increase would be very small. 27. Comment: Page 111-60, paragraph 3. - We feel benefits in addi- tion to reduced siltation in the Colorado River would include reduced pollutant loads of nitrogen, phosphorous, pesticides, and oxygen'con- suming organic compounds. .~,~. "~*{;: ~:.,;/.:i- Reply: A statement concerning the has been added to the discussion. Local Economic Resources.. reduction of the other pollutants See chapter III, section B.2.b. [1] 28. Comment: Page IV-IS, Section [5], line 11. - We suggest that an estimate be made of the amount of water needed to maintain the habitat that was above the trench and that amount shOUld be assured. Reply: An estimate of the quantity of water required to maintain the existing phreatophytic growth has been included under the Las Vegas Wash Unit, Chapters I and II. The Wash itself is primarily under Clark County ownership and the rights to use surface wastewater are jointly shared by the county and the municipalities of the area. The county is currently planning a park development for the Wash and will use their water rights to maintain it. As such, there is no Federal responsibility to assure these flows. ~~:~1Z!