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<br />. <br /> <br />. <br /> <br /><:) <br />o <br />W <br />I-" <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />at the three water quality stations through time, Adjusted salinity values were not computed for <br />the period 1980 through 1990, The figures show that at times in the past adjusted salinity values <br />were above the numeric criteria, <br /> <br />Future Salinily Projections <br /> <br />For past Reviews, salt-routing studies were conducted using the Colorado River Simulation <br />System (CRSS) developed by Reclamation,' The CRSS is a package of computer models and <br />databases developed by Reclamation as a tool for use by water resource managers dealing with <br />water-related issues and problems in the Colorado River Basin, Previous studies were conducted <br />to provide estimates of future flow-weighted average annual salinity concentrations for each year <br />of the study period below Hoover and Parker Dams and at Imperial Dam in the Lower Basin, <br /> <br />Currently, Reclamation is developing a new model to analyze the Colorado River System, <br />including salinity, This is an ongoing process that is intended to provide a better tool for projecting <br />future salinity concentrations, Because the model is not completed, new projections are not available <br />for this Review. Projections developed for the 1996 Review are used in this Review, This analysis <br />determined the salinity program would need an estimated total of 1,477,000 tons of salinity control, <br />as is shown in Table 2-4, in order to meet the numeric criteria in 2015 at the Hoover station, This <br />represents 756,000 tons beyond the existing 721,000 tons of salinity control. This includes a shortfall <br />of 384,000 tons of salinity control that were to be in place by 1998 to offset estimated development. <br />Based on comments received during the 1996 Review, the Forum has determined that the shortfall <br />should be eliminated as soon as possible and at least within the next six years, The plan of <br />implementation has been developed to remove at least 87,000 tons/year through 2005, This includes <br />64,000 tons/year to eliminate the shortfall and the 23,000 tons/year needed to maintain the numeric <br />criteria through 2015 (see page 4-2 for funding recommendations), <br /> <br />'Detailed information on CRSS is presented in the following Reclamation reports: Colorado River <br />Simulation Svstem, An Executive Summary (October 1981); Colorado River Simulation Svstem, Users Manual <br />(June 1982); and Colorado River Simulation Svstem. Svstem Overview (1984). <br /> <br />2-9 <br />