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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 />JJ1017 <br /> <br />~.~ <br /> <br />C. ImDacts ~ Salinity <br />Maintaining flow in the South Canal during the 5 month non- <br />irrigation season will contribute to an increase in salt <br />loading from the Uncompahgre Project and will thus have a <br />minor adverse impact on the salinity of the Colorado River <br />system. However, as discussed previously, the Bureau of <br />Reclamation has recommended that the remaining unlined <br />portions of the South Canal be lined with concrete as a part <br />of the Colorado River Water Quality Improvement Program <br />{CRWQIP). If the entire South Canal is concrete lined, <br />seepage out of the canal and the related increase in salt <br />loading will be eliminated. In its existing condition, the <br />unlined portions of the South Canal represent only a small <br />fraction of the unlined canals east of the Uncompahgre River <br />which are the major source of BaIt loading from the project. <br />Therefore, even if no additional concrete lining is <br /> <br /> <br />installed, seepage and associated salt loading from the <br /> <br /> <br />South Canal is not a major contributor to the salinity of <br /> <br /> <br />the Colorado River system. <br /> <br />Flow is currently maintained in the M&D Canal during the en- <br /> <br /> <br />tire year, and the operation of the proposed Shavano Falls <br /> <br /> <br />Project (Project No.6) therefore does not represent a <br /> <br /> <br />significant change from the existing condition. In <br /> <br />E-31 <br />