Laserfiche WebLink
<br />. <br /> <br />. <br /> <br />. <br /> <br />...... <br />(,D <br />(,.~) <br />~... <br /> <br />Consistent with the fDregDing policy and with regulatiDns <br />.of the EnvirDnmental PrDtection Agency, recommended flow- <br />weighted average annual numeric salinity criteria [emphasis <br />added] have been adopted by the affected States for three <br />locations in the lDwer main stem Df the Colorado River <br />System as follows: <br /> <br />Below HDDver Dam <br />Below Parker Dam <br />Imperial Dam <br /> <br />Salinity in mg/l <br />723 <br />747 <br />879 <br /> <br />The plan of implementation comprises Federal and non-Federal <br />projects .and measures to maintain these conditions, The <br />principal cDmpDnents Df the plan are: (1) prompt construction <br />of fDur authorized salinity control units of the Colorado <br />River Salinity Control Project (Salinity ContrDl Act, Public <br />Law 93-320); (2) construction Df 12 Dther units or their <br />equivalent after receipt of favorable planning reports; <br />(3) the placing of effluent limitations on industrial dis- <br />charges; (4) reformulation of previously authorized, but <br />unconstructed, federal water projects tD reduce salt loading <br />effect; and (5) use of saline water for industrial purpDses <br />whenever practical, programs by water users to cope with <br />river's high salinity, studies to minimize salinity in muni- <br />c1pal discharge, and studies of future possible salinity con- <br />trol prDgrams. <br /> <br />I I <br /> <br />! <br /> <br />There is evidence, from a policy (Colorado River Basin Salinity <br />CootrDl FDrum, 1977; U.S. Environmental Protection Agency, 1977, p. 20) <br />and technical (Goldstein et al., 1978) point of view, that use of increas- <br />ingly saline waters by industry, as mentioned above, is both deSirable <br />and practical. <br /> <br />Other water. quality problem parameters identified in the Basin include <br />the following: <br /> <br />!u! <br /> <br />Parameter <br /> <br />Symbol <br /> <br />Phys ical <br /> <br />dissolved oxygen <br />pH <br />temperature <br />total suspended solids <br /> <br />DO <br /> <br />TSS <br /> <br />BiD logical <br /> <br />fecal coliforms <br /> <br />3-8 <br />