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<br />. <br /> <br />.. <br /> <br />. <br /> <br />Outlook for Meeting Standards <br />In the Future <br /> <br />The flow-weighted average annual salinity values at <br /> <br />o Parker and Imperial Dams increased in 1981. However, at <br />~ <br />W Hoover Dam, salinity decreased slightly. Based on the <br />C;1 <br />available data, it appears that salinity values at Hoover, <br /> <br />Parker and Imperial Dams will increase slightly in 1982 from <br /> <br />the 1981 levels. <br /> <br />Implementation of Federal salini ty control acti vi ties <br /> <br />are continuing having been initiated in the Grand Valley, <br /> <br />Uinta Basin and Paradox Valley. However, it will be a number <br />of years before any effects are felt at the three lower <br /> <br />mainstem stations. <br /> <br />The system's reservoir storage declined <br /> <br />about 3 million acre feet as a result of lower than average <br />runoff' in 1981. <br /> <br />Salinity concentrations are about 45 mgll below the <br />numeric criteria at Hoover Dam, 26 mg/l below the criteria at <br />Parker Dam, and at Imperial Dam, about 63 mgll below the <br /> <br />numeric criteria. Considering current levels of salinity in <br /> <br />the lower mainstem, the level of reservoir storage and the <br /> <br />present level of water demand in the Basin, it is highly <br /> <br /> <br />unlikely that the criteria will be exceeded during the next <br /> <br />twelve-month period. <br /> <br />-45- <br /> <br />