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<br />o <br />~ <br />~ <br />C,Jl <br /> <br />Sixth AnnuaL Progress Report <br />Water Quality Standards for Salinity <br />Colorado RLver System <br /> <br />December 1983 <br /> <br />Pr'epared by the <br />Colorado River Basin Salinity Control Forum <br /> <br />Introduction <br /> <br />In 1975, the seven-state Colorado River Basin Salinity <br />Control Forum prepared a report which included numeric <br /> <br />criteria and a pLan of implementation and recommended that <br /> <br />each state adopt the report as its salinity standards. Each <br />of the Colorado River Basin states adopted the recommended <br />standards which were approved by the Environmental Protection <br /> <br />Agency (EPA) in November 1976. <br /> <br />The Clean Water Act requires that water quality <br /> <br />standards be reviewed at least once each three-year period. <br /> <br />Accordingly, in 1978, and again in 1981 the Forum reviewed <br />the existing state-adopted and EPA approved salinity <br /> <br />standards. Based on tha t rev i ew, the ~"or'um found no reason <br /> <br />to recommend changes in the numeric criteria. <br /> <br />''" <br /> <br />ii..:.;::;; <br />