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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />3679 <br /> <br />Big Sandy River Unit (SCS) - Wyoming <br /> <br />The Soil Conservation Service released their Big Sandy River <br />Salinity Control Study in November, 1980. It was determined that <br />the Big Sandy River contributed about 149,000 tons of salt to the <br />Colorado River annually. Of that total, approximately 125,000 <br />tons were contributed as a result of inefficient on-farm <br />irrigation practices while natural runoff, erosion, and seeps <br />contributed an additional 24,000 tons annually. <br /> <br />The selected plan would involve retiring 13,700 acres of <br />farmland from irrigation. Three pumping plants would be <br />installed along the Big Sandy River and a distribution pipeline <br />would deliver water to irrigate the remaining 2000 acres. Of the <br />2000 acres, 90 acres would have no structural improvements, 420 <br />acres would have minimal structural improvements, 880 acres would <br />have automatic border and sprinkler irrigation, and 610 acres <br />would have a reduced water supply. Completed implementation of <br />the plan would result in a 14.3 mg/L reduction at Imperial Dam at <br />a cost of $209,000 mg/L/year. <br /> <br />To this time, no steps toward implementing the selected plan <br />have been made. The Wyoming State Engineer's Office was not <br />satisfied with the report recommendations and implementation has <br />been indefinitely delayed pending further consideration from that <br />office. <br /> <br />DRS/gl <br />12/8/81 <br /> <br />-12- <br />