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<br />unreasonably high: for example, <br /> <br /> <br /> <br /> <br />,; <br /> <br />11 <br /> <br />for 1950 and 30,000 mg/l for 1951, the <br /> <br /> <br />o <br />turf <br />co for the period before 195K may be due, at least in part, to <br />W r <br /> <br />errors. <br /> <br />For future routing studies, tributary inflow to the <br /> <br />Lees Ferry to Grand Canyon should be based on the period. <br /> <br />~ <br />" <br />in 195~ rather than on the period starting in 1941 as was done in <br /> <br />previous Forum studies. For a virgin flow of 14 maf, the annual <br /> <br />average tributary inflow of water to the reach wou.ld be about <br /> <br /> <br />, . :L.S1) DO 0 <br />60,008 acre-feet more and the salt load about 210,000 tons less <br /> <br />- <br /> <br />the averages were based on the 195j through 1976 period, rather <br /> <br />than on the 1941 through 1976 period. This is equivalent to about <br /> <br />7'") <br /># mg/l reduction at Imperial Dam. <br /> <br />Reconunendations <br /> <br />It is recowmended that the salt routing studies for <br /> <br />standards revision include the following modifications: <br /> <br />1. Inflow of salt to Lake Powell as gaged at Colorado <br /> <br />near Cisco, Utah, be based on the salt-load versus <br /> <br />derived for the period beginning in 1968 rather than the period <br /> <br /> <br />.,,,~__'.,,,..~ ~.,. .'",".,.C..." ~. <br />