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<br />- -J'I <br />!'oo <br />-:.J <br />.... <br />(:1 <br /> <br />Sal inity in n~ <br /> <br />2 <br /> <br />Below Hoover Dam <br /> <br />Imperial Dam <br /> <br />723 <br />747 <br />879 <br /> <br />3 <br />4 <br /> <br />Below Parker Dam <br /> <br />5 The plan of implementation comprises a number of federal and nonfederal <br /> <br />6 projects and measures to maintain the flow-weighted average annual <br /> <br />7 salinity in the lower main stem at or below the recommended numeric <br /> <br />8 criteria through 1990, as the Basin States continue to develop their <br /> <br />9 compact-apportioned waters. The principal components of the plan are as <br /> <br />10 follows: <br /> <br />11 <br /> <br />I. <br /> <br />Prompt construction and operation of the initial four sal inity <br /> <br />12 <br /> <br />control units (includes Grand Val ley Unit) authorized by <br /> <br />13 <br />14 <br /> <br />Title I I of PL 93-320, the Colorado River Basin Salinity <br /> <br />Control Act. <br /> <br />15 <br /> <br />2. <br /> <br />Construction of. the 12 other units I isted in Title I I of <br /> <br />16 <br /> <br />PL 93-320 or their equivalent after receipt of favorable <br /> <br />17 <br />18 <br /> <br />planning reports. <br /> <br />3. <br /> <br />The placing of effluent limitations, principally under the <br /> <br />19 <br /> <br />NPDES permit program provided for in Section 402 of PL 92-500 <br /> <br />20 <br /> <br />on industrial discharges. <br /> <br />21 <br /> <br />4. <br /> <br />The reformulation of previously authorized, but unconstructed, <br /> <br />22 <br /> <br />federal water projects to reduce the salt loading effect. <br /> <br />23 <br />24 <br /> <br />5. <br /> <br />Use of sal ine water for industrial purposes whenever practical, <br /> <br />prog rams by water users to cope wi th the r i \fer's high sa 1 in i ty, <br /> <br />25 <br /> <br />studies of means to minimize sal inity in municipal discharges, <br /> <br />26 <br /> <br />and studies of future possible salinity control programs. <br /> <br />6 <br />