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<br />N <br />~ <br />too- <br />-..1 <br /> <br />based on historical data adjusted to 1972 level of develop- <br />ment. As the states continue to develop their water use, and <br />as salinity control measures are implemented, adjustments may <br />be made in the baseline values. If, in the future, salinity <br />values fall wi thin the broad band, it may be assumed that no <br />significant changes in the relationship have taken place. <br />However, if the points continue to fall outside the band <br />without this being the result of known actions, an investi- <br />gation will be made to determine the cause of the change. <br />Preliminary water quantity/quality relationships have <br />been developed at the following thirteen stations in the <br />Colorado River Basin: <br /> <br />Colorado River near Cameo, Colorado <br />Gunnison River near Grand Junction, Colorado <br />Colorado River near Cisco, Utah <br />San Juan River near Archuleta, New Mexico <br />San Juan River near Bluff, Utah <br />Colorado River at Lees Ferry, Arizona <br />Green River near Green River, Wyoming <br />Duchesne River near Randlett, Utah <br />Green River at Green River, Utah <br />San Rafael River near Green River, Utah <br />Dolores River at Cisco, Utah <br />White River at Watson, Utah <br />Virgin River at Littlefield, Arizona <br /> <br />The data input consisted of annual flow and salt <br />load for each of thirty-two years (1941-1972). Data were <br />obtained from the Bureau of Reclamation and modified to <br /> <br />reflect 1972 conditions. <br /> <br />26 <br />