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<br />. <br /> <br />. <br /> <br />N <br />OJ <br />i-' <br />o <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />1. Prompt construction and operation of the initial <br /> <br />four salinity control units authorized by Title II of PL 93-320, <br /> <br />the Colorado River Basin Salinity Control Act. <br />2. Construction of the 12 other units listed in Title II <br /> <br />of PL 93-320 or their equivalent after receipt of favorable <br />planning reports, <br />3. The placing of effluent limitations, principally <br />under the NPDES permit program provided for in Section 402 <br />of PL 92-500 on industrial discharges. <br />4. The reformulation of previously authorized, but <br /> <br />unconstructed , federal water projects to reduce the salt <br /> <br />loading effect, <br /> <br />5, Use of saline water for industrial purposes whenever <br /> <br />practical, programs by water users to cope with the river's <br /> <br />high salinity, studies of means to minimize salinity in <br /> <br />municipal discharges, and studies of future possible salinity <br />control programs, <br /> <br />The report recognizes that many natural and man-made factors <br /> <br />affect the river's salinity. Consequently, the actual salinity will <br /> <br />vary above and below the recommended numeric criteria. However, <br /> <br />under the assumptions of streamflow equivalent to the long-term <br /> <br />average, a "moderate" rate of increase in water depletions and <br /> <br />full implementation of needed salinity control measures, the average <br /> <br />salinity can be maintained at or below 1972 levels during the study <br /> <br />period of the next 15 years. <br /> <br /> <br />The federal regulations provide for temporary increases above <br /> <br />the 1972 levels if control measures are included in the plan. Should <br /> <br />-ii- <br /> <br />I <br />, ,J,: <br />.., - <br />