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<br /> <br />w <br />w <br />o <br />.... <br /> <br />Quality of Water ~ Colorado River Basin (USDI) <br /> <br /> <br />Biennial Progress Reports on the "Quality of Water - Colorado River <br /> <br />Basin" are prepared by the Oepartment of the Interior. The initial <br /> <br />report displays the past, present modified. and estimated future <br /> <br />report was issued in 1963 and the latest report is dated 1971. The <br /> <br />quality of the Colorado River at 17 gaging stations for the period <br /> <br />of 1941-1968. The future quality condition as used in this report <br /> <br />is an estimate of the situation after the presently authoriz.ed <br /> <br />developments. projects proposed for authorization, and private <br /> <br />developments are placed in operation. The report estimates the <br /> <br />present modified average concentration below Iloover Dam to be <br /> <br />760 mR/l and with future known developments. 1.010 mg/l. At <br /> <br />Imperial Darn the comparable projections are 865 and 1.250 m~/l. <br /> <br />respectively. under the same conditions. No time period is speci- <br /> <br />fied in the report to identify when the projected concentrations <br /> <br />would be reached. <br /> <br /> <br />Computer Simulation of the lIydrolop,ic-Salini ty Flow <br /> <br />System I\'ithin the tJpper Colorado River Basin (USU) <br /> <br />Salinity conditions were im'estir.ated by Utah State University. <br /> <br />In 1970. they issued a report entitled "Computer Simulation of <br /> <br />the Hydrologic-Salinity FIOl.' SysteM Within the Upper Colorado <br /> <br />River Basin." This study employed an electronic analo~ COmputer <br /> <br />16 <br />