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<br />N <br />~ <br />00 <br />N <br /> <br />Salinity Concentration at Monitoring Stations <br />Salinity concentration at monitoring stations below <br /> <br />Hoover Darn for years 1973 through 1984 are shown on Table 3. <br /> <br />These values are all less than the numeric criteria. <br /> <br />TABLE 3 <br />FLOW-WEIGm.'ED AVERAGE ANNUAr,SALINITY CXNCENl'RATICNS <br />Nr ~ STATIOOS <br />(Total Dissolved Solids in ng/l*) <br />Calendar Year <br /> <br />Numeric <br />Criteria 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 <br /> <br />Beloo Hoover <br />Darn 723 <br />Beloo Parker <br />Darn 747 <br />At Imperial <br />Darn 879 <br /> <br />675 681 680 674 665 678 688 691 681 679 665 611** <br /> <br />f <br /> <br />709 702 702 690 687 688 701 712 716 717 698 642** <br /> <br />843 834 829 822 819 812 802 760 821 826 710 670** <br /> <br />*Determined annually by the Bureau of Reclamation from data collected by <br />Reclamation and the U.S. Geological Survey and recalulated from new data <br />accordingly to "Quality of Water - Colorado River Basin," progress Rep:>rt No. <br />12, January 1985. <br />**Provisional records. <br /> <br />1984 Review - Colorado River Salinity Standards <br />In response to Section 303 of the Clean Water Act, the <br /> <br />Forum reviewed the 1981 salinity standards. In May 1984, the <br />Forum approved the report, "1984 Review-Water Quality <br /> <br />Standards for salinity," May 1984. <br /> <br />Two regional public <br /> <br />meetings were held by the Forum to receive public comment. A <br /> <br />supplemental report was prepared based on the statements <br /> <br />received at the hearings. The May report and the July 1984 <br /> <br />Supplement, which constituted the Forum recommended review, <br /> <br />-6- <br />