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<br /> <br />July 1983 <br /> <br />COLORADO RIVER WATER QUALITY IMPROVEMENT PROGRAM <br /> <br />Di_fy Dewil <br />lIiwe- IJnif <br /> <br />rJ@m~~- n <br />JUL 0/ 1983 U <br />L:.J COLORADO WATER <br />CI"I'\c:.q;lVA:!O~\ BOAfi!k-"'--<;o-....__- <br />_;~v_. ;:,.:;,;, .......--. <br />. ',-,-, ,--'-. <br />._.,-:,;.."-~ <br /> <br /> <br />This newsletter is the first of several <br />intended to keep you informed on the progress <br />of our salinity control investigation in the <br />Dirty Devil River Basin, The purpose of the <br />investigation is to find out where and how salt <br />is picked up by ground and surface water and <br />to formulate control methods. Salinity from <br />the Dirty Devil Basin contributes significantly <br />to the increasingly higher salinity levels found <br />in the lower reaches of the Colorado River. <br /> <br />Salinity in the Colorado River causes <br />serious problems for municipal, industrial <br />and agricultural water users downstream, <br /> <br />Each increase of one milligram of salt per liter <br />(mg/L) of river water* is estimated to cause <br />damages of $540,000 per year. <br /> <br />- <br /> <br />The Dirty Devil River Unit is one of several <br />salinity control projects in the Colorado River <br />Basin. In Utah, the Price, San Rafael and <br />Uinta River Basins are also being investi- <br />gated to see what can be done to control the <br />saline water originating there. <br /> <br />*This is the equivalent of one pound of salt <br />per 120,000 gallons of water. The Dirty Devil <br />River increases the concentration of the <br />Colorado River by approximately 14 mgjL. <br /> <br />002455 <br />