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ro o ~ w 116 117 118 3 municipal and industrial about 1 percent, and storage release is about 3 percent. These percentages are expected to change in the future. The 1975 standards established nurrleric criteria at the three stations, 'Hoover, Parker, and Imperial Dams. They are 723, 747, and 879, respectively. As part of this review, the Forum considered the changes that have occurred since 1977 the base year of the 1978 study, through 1979. Qw of the major items to be considered in predicting future salinity levels is the projection of the level of future water use that will occur in the Basin. Each of the states submitted their best estimate to the Forum work group as to what they anticipated future development would be within their respective states. Their projections included low, moderate, and high development levels. The terminology "low, moderate, and high" is not to be taken as implying that the projection designated as moderate is the most pro- bable one. Rather the three terms merely reflect the relative role of increased use for one projection as compared to the others. A comparison of the projections with the historical trend is shown. The 1978 low projection was coincidental with the recent historical trend. The low projections for the 1981 review is greater than that used in 1978. However, the moderate and high rates are lower than -_-c'-__--~.~'v_" ___~ ,_ 1978. A large part of the salinity control program is included in the Bureau of Reclamation program for water quality improvement and the Department of Agriculture's on-farm salinity control acti- vities. Public Law 93-320, the Colorado River Basin Salinity Control " "~ ' " - ,--' ',t;':l.;>i 1L,_ ~~,"-. -..:i.-;-" ";~ &L;;.,.,;