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<br />river system by the year 2000. The following illustration shows his- <br /> <br />torical salinity levels and projected levels with and without the CRWQIP. <br /> <br /> 1100 <br />..J 1000 <br />.... <br />CD <br />2 <br />III 900 <br />0 <br />::i <br />0 <br />J) BOO <br />0 <br />III <br />~ <br />0 700 <br />III <br />!!? <br />0 <br />..J 600 <br />~ <br />f:! <br /> 500 <br /> 1940 1950 1960 1970 <br /> <br /> <br />"",/ <br />/' <br />/' <br />/ <br />/ <br /> <br />...' <br />.. <br /> <br />...... <br /> <br />Hi.torlcol <br /> <br />_ _ _ Without Water Quollly <br />Improvement Program <br /> <br />_ _ _ _ _ .With Water Quality <br />Improvement Program <br /> <br />1980 <br /> <br />1990 <br /> <br />2000 <br /> <br />2010 <br /> <br />Uncompahgre Project Facilities <br /> <br />The Uncompahgre Project irrigation delivery systems, constructed in <br /> <br />the early 1900's, were cut directly into the saline soils and rock with- <br /> <br />out benefit of lining. The nature and condition of the deteriorated <br /> <br />facilities have resulted in conveyance system losses. These losses in <br /> <br />turn contribute to the salt loading of the Uncompahgre River and, conse- <br /> <br />quently, the Gunnison and Colorado Rivers. <br /> <br />The Lower Gunnison Basin Unit investigation centered on the distri- <br /> <br />but ion system of the Uncompahgre Project. Unlined canals and laterals, <br /> <br />deep percolation, and onfarm facilities all contribute to the 350,000 tons <br /> <br />of salt loading of the Uncompahgre River. <br /> <br />amounts o~'O'lt686 <br /> <br />from each source will be addressed in detail in the feasibility report. <br /> <br />Incremental <br /> <br />15 <br />