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<br />l-'o <br />en <br />o <br />l'V <br /> <br />~ <br /> <br />Another strategy being considered in the area is to use <br /> <br />ground water barriers in selected areas to develop a ground <br /> <br />water detention basin system in order to trap salts and <br /> <br /> <br />prevent them from entering the wash. Each detention basin <br /> <br />be formed by a peripheral slurry trench/wall. An <br /> <br />foot perimeter dike and slurry trench/wall will be <br /> <br />constructed near the Whitney area to verify the feasibility <br /> <br /> <br />Other units in the CRWQIP (Colorado River Water Quality <br /> <br />Improvement Program) have been or are under study at <br /> <br />various stages of completion, They are categorized by the <br /> <br />type of control anticipated in each unit, <br /> <br />Irri~ation source control activities within Reclamation <br /> <br />would reduce salt loading by improving irrigation delivery <br /> <br />systems that currently leach salt from marine shales and <br /> <br />other saline sources, <br /> <br />In addition to Grand Valley and <br /> <br />Dolores Project (McElmo Creek), the Lower Gunnison Basin <br /> <br />North Fork area in Colorado, the Uinta Basin in Utah, and <br /> <br />the Palo Verde Irrigation District Unit in California are <br /> <br />irrigation sources, <br /> <br />Point source control activities would remove salt from <br /> <br />localized areas such as mineral springs, abandoned oil <br /> <br />wells, and geysers. <br /> <br />In addition to Paradox Valley and Las <br /> <br />Vegas Wash, Glenwood-Dotsero Springs and Meeker Dome UnIts <br /> <br />15 <br /> <br />