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<br />1 <br />I <br />I <br />1 <br />1 <br />I <br />I <br />I <br />I <br />1 <br />I <br />1 <br />I <br />1 <br />I <br />1 <br />1 <br />1 <br />1 <br /> <br />in Beaver Creek and records withholding, a measuring gage is located on the <br /> <br />East Fork of Dallas Creek below its confluence with Beaver Creek. Taking <br /> <br />note of Exhibit IXb, which notes the flow from the dates of September 15, <br /> <br />1958, to January 11, 1961, the lowest recorded flow was on January 7, 1960, <br /> <br />of 8 cfs. Although this is not representative of the complete flow in <br /> <br />Beaver Creek, it is indicative of the fact that water is available during <br /> <br /> <br />dry periods. Further evidence of this can be attested by the weir reading <br /> <br /> <br />taken in the Ridgway Ditch on July 14, 1977 (note Exhibit IXd). <br /> <br /> <br />Exhibits Xa, band c, show the physical and chemical characteristics' <br /> <br />of the water supplies in Beaver Creek, East Fork of Dallas Creek below the <br /> <br />confluence with Beaver Creek and Dallas Creek respectively. Exhibit Xd lists <br /> <br />parameters required by the Colorado State Health Department. At all three <br /> <br />places the quality of water is similar. Analyses indicate there are no <br /> <br />objectionable odors, hardness not sufficient to present taste problems, <br /> <br />limited biocides, cations and anions well below State standards, fecal and <br /> <br />streptococci coliforms very few and well below standards. However, as the <br /> <br />water in all five alternates is surface water, there will be times during <br /> <br />run-off season and storms that the water will contain a high count of sus- <br /> <br />pended solids, inorganic and organic materials, etc., which must be filtered. <br /> <br />Hence, in Alternate I, III, IV and IVa(revised) treatment will be required. <br /> <br />Treatment will basically be the same in all four alternates and will be dis- <br /> <br />cussed in the individual alternates. <br /> <br />As there are no major diversion structures in the proposed alternates, <br /> <br />little sedimentation is anticipated. The method of intercepting the receiving <br /> <br />waters will be analyzed in each alternate. <br /> <br />11 <br />