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<br /> <br />. <br /> <br />.... <br />o <br />o <br /> <br />..~ <br /> <br />. <br /> <br />. <br /> <br />I~nR()nL'Crln~: <br /> <br />pror,ram ~hich began in February 1970 with the objective of determining <br />the source of the salt load arriving at Imperial Dam. The Bureau of <br />Reclamation is the lead a~ency of an ongoirIR task for Ct.. for coordinatin~ <br />the collection of Other quality data in the lowt:'r Basin. This t,Hk force <br />is composed of representatives from the Geolo~ical Survey. Intern.1Uansl <br />Boundary and \.1a ter Comm Iss100. and Environrnen ta 1 Proeee tion AReney. <br /> <br />E. t.,'ater Quality Le~islation <br /> <br />Various ....ater quality le~islative acts have been passed by the <br />(l!l~ress of the L\nited States. Discllssion of three acts that are of <br />special si~nificance to the Colorado River Basin follows: <br /> <br />1. ^:llpr ualitv Act of 1965 and Relatt."d Dcvelo ments. <br /> <br />TIle Wat~r Quality Act of 1965, Public Law 89-2)~. is an Act to <br />..L!J(:>nJ the Federal Water Pollution Control Act and establish a Federal <br />>dtpr Pollution Control Administration, tc> provide ~rants for research <br />~nd development, to increase ~rants for construction of sewa~e treatment <br />',,'''rks, to re-quire es t,'Iblishmen t of wat;;>r qua 11 ty cr iter ia, and for other <br />puqlOses. Section 5 of this Act requires States to adopt water quality <br />criteri::! applicablp to int....r...tate Watl'rs or portions thcrl'of within their <br />boundaries by June 30, 1967. <br /> <br />Each of the seven Basin States proceeded wi th aCtions directl~d toward <br />l'sl:;Jblishm,'nt of water quality Standards for interSlilte strc,1rns. [arly in <br />Ua" st.1ndards st!'tling process, it becamp .'Ipparent to the States that because <br />of leRal and institutional constraints combined ....ith lack of technical <br />knowledge of s<llinity control and mana~l~ment, it ....ould be very difficult <br />to establish numerical salinity st.-lndards on the Colorado Riv,~r \.,'hich <br />would be workable, equitable, and enforceable. The seVen Basin States <br />subsequently developed ....ater quality standards which did not includL' <br />".il fnit,. standards. <br /> <br />TIlL' "St'venth Enforcement Conference in the ~latter of Pollution of the <br />Interst.,te Waters of the Colorado River and Its Tributaries" was held in <br />,1<:;' Vegas (F,~bruary lS-ll, 1972) and Denvt'r (April 26-27, 1972). <br /> <br />TIle confen>es, of f ic ia I repn>s('nta tivt!s of the Sl'Ven Basin S ta tes <br />,1:1J the Env irol1rnen tal Protcc tion AR<.'ncy, unanimous 11' ilJopted cone Ius ions <br />and recOl:U!lenJdtions perlaininR to the s,'Ilinlty problems of the Colorado <br />RiVer. The conclusions and reCOMlllendatlons were approved by ~lr. "'illla:n D. <br />Ruckelshaus, Administrator of the Env[ronmental Protection A~enc1' in June <br />1972. The more si~nificant conclusion bein~ as follows: <br /> <br /> <br />5 <br /> <br />