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<br />. <br /> <br />I-' <br />N <br />W <br />N <br /> <br />. <br /> <br />. <br /> <br />SUlmnary <br /> <br />Part I <br /> <br />Part II <br /> <br />Part III <br /> <br />Part IV <br /> <br />Part V <br /> <br />CONTENTS <br /> <br />. . . . . . . <br /> <br />lntroduction. . . . . . . . . . . . . . <br />A. Authorization for report. . . . . . . . . <br />B. Previous reports and cooperating agencies <br />C. Legal aspects. . . <br />I. Water quantity. <br />2. Water quality <br /> <br />Description of basin. <br />A. Climate. . . . . <br />B. Hydrology. . . . <br />C. Reservoir storage <br />D. Geology and soils <br /> <br />Causes and impacts of salinity. <br />A. Increased concentration from salt additions <br />1. Natural sources of salinity. <br />2. Agricultural sources of salinity. . <br />3. Municipal and industrial sources of <br />salinity. . . . . . . . . . . . . <br />Increased concentration from water depletions <br />Effects of water quality on water users . <br />1. Recreation, esthetics, and fisheries. <br />2. Economic. . . . . . . . . . . . <br /> <br />B. <br />C. <br /> <br />Colorado River water quality assessment <br />A. Wyoming. <br />B. Utah. . . <br />C. Colorado. <br />D. Arizona. <br />E. Nevada.. <br />F. California. <br />G. New Mexico. <br /> <br />Historical and present salinity conditions. <br />A. Qual i ty of water records. . <br />B. Historical salinity. . . . <br />C. Factors in salinity trends. <br />1. Hydrologic conditions. <br />2. Reservoir effects . . . <br />3. Irrigation and increased depletions <br />4. Reduced flood plains. . . . . . . . <br />5. Potential new sources of salt loading <br />6. Method of chemical analysis <br />7. Salinity control projects <br />8. Erosion. . . <br />9. Geochemistry. . . . . . . <br /> <br />Page <br />I <br /> <br />2 <br />2 <br />3 <br />3 <br />3 <br />4 <br /> <br />8 <br />8 <br />8 <br />9 <br />10 <br /> <br />12 <br />12 <br />12 <br />12 <br /> <br />13 <br />13 <br />14 <br />14 <br />15 <br /> <br />16 <br />16 <br />17 <br />18 <br />19 <br />20 <br />21 <br />22 <br /> <br />23 <br />23 <br />23 <br />23 <br />25 <br />25 <br />26 <br />27 <br />27 <br />27 <br />28 <br />28 <br />28 <br />