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<br /> <br />w <br />CJ1 <br />~ <br />~ <br /> <br />COMMENT FROM DR. LARRY PAULSON, PROFESSOR, <br />UNIVERSITY OF NEVADA LAS VEGAS <br /> <br />.---------.----- <br /> <br />Dr. Paulson suggested that the Forum include in the <br /> <br /> <br />supplement a comparison of the salinity projections made in <br /> <br /> <br />1972 with the salinity concentrations measured in the lower <br /> <br /> <br />main stem subsequent to 1972. <br /> <br />RESPONSE <br /> <br />Such comparison and analyses are regularly being made by <br /> <br />the Forum and the Bureau of Reclamation. <br /> <br />As a result, <br /> <br />continuous refinements are being made in the assumptions, <br /> <br />data base, simulation system, and salinity projections. <br /> <br /> <br />During the 1978 Review, the Forum recognized that measured <br /> <br /> <br />salini ty concentrations were not following the earlier pro- <br /> <br /> <br />jections. The Forum addressed this question in the 1978 <br /> <br /> <br />Review and in more detail in the 1981 Review. Early indica- <br /> <br />tions were that the salt load entering the river was over- <br /> <br />estimated. In the 1981 Review, the Forum evaluated the <br />inflow to Lake powell, inflow from Lees Ferry to Grand <br />Canyon, salt gain or loss in Lake powell, and bank storage in <br />Lake Powell. Based on the above evaluation, the salt load <br />estimate was revised for the salinity projections used in the <br />1981 Review. The Forum continued this process for the 1984 <br />Review and again revised its salinity projections. Research <br />and evaluation is continuing by the Forum and Reclamation to <br /> <br />10 <br />