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<br />Phase III - Comprehensive Planning for the highest priority Utah- <br />BLM watershed, - Sagers Wash was started. It will be completed in the <br />spring of 1991. Other efforts included Grand Valley, Lower Wolf Creek <br />and Disappointment Valley in Colorado; Wells Draw, Sweetwater and <br />Castle Peak in Utah; and Current ereek and Austin- Triangle in Wyoming. <br /> <br />Phase IV - Implementation was completed on two retention dikes and <br />one drop structure at Sagers Wash in Utah. Wyoming completed a re- <br />tention structure on Bone Draw and willow plantings on Sage ereek. Utah <br />finished 29 structures on Pariette Draw and 22 small structures in the <br />Sweetwater area. <br /> <br />Phase V - Maintenance was performed in Utah on Huffaker Hollow <br />and Crescent Dams, several small structures in Clayhole Basin, Henry <br />Mountains and Diamond Mountain areas. Wyoming maintained four small <br />structures. <br /> <br />Phase VI - Monitoring continued in Colorado on Vermillion ereek; <br />in Utah on Montezuma, Indian, Sagers and Bull ereeks; and in Wyoming <br />on twenty-six allotments in Green River/Pinedale areas. <br /> <br />Many of the reconnaissance findings and existing plans exhibit an at- <br />tractive cost effectiveness for retaining salt-laden sediment on rangelands. <br />Each rangeland area has its own specific problems and constraints which <br />must be carefully understood to prescribe the best management treatments <br />and practices. <br /> <br />A. COLORADO RIVER BASIN SALINITY <br />CONTROL PROGRAM <br /> <br />Section 202 of the Title II of Public Law 93-320 authorized the <br />Secretary of the Interior to construct, operate and maintain four salinity <br />control units as the initial stage of the Colorado River Basin Salinity eontrol <br />Program. The four units are Paradox Valley, Grand Valley, erystal Geyser <br />and Las Vegas Wash. Public Law 98-569, dated October 30, 1984, de- <br />authorized Crystal Geyser. <br /> <br />This section of the act also authorized the Secretary of Agriculture to <br />establish a voluntary salinity control program with landowners. Under <br />this authority, rules and regulations were developed for the United States <br /> <br />66 <br />