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<br />o.l::>o <br />o <br />CO <br />l'--J <br /> <br />Table 2-1 <br /> <br />Observed Flow-Weighted Average Salinity <br />at the Numeric Criteria Stations <br />(Total Dissolved Solids in mglL)4 <br /> <br />Calendar Year Below Hoover Dam Below Parker Dam At Imperial Dam <br />1972' 723 747 879 <br />1973 675 709 843 <br />1974 681 702 834 <br />1975 680 702 829 <br />1976 674 690 822 <br />1977 665 687 819 <br />1978 678 688 812 <br />1979 688 701 802 <br />1980 691 711 760 <br />1981 681 716 821 <br />1982 680 713 826 <br />1983 658 678 727 <br />1984 597 611 675 <br />1985 556 561 615 <br />1986 517 535 577 <br />1987 519 538 612 <br />1988 529 540 648 <br />1989 564 559 683 <br />1990 587 600 702 <br />1991 629 624 749 <br />1992 658 651 767 <br />1993' 660 631 784 <br />1994 663 685 831 <br />1995 654 661 787 <br /> <br />'Determined by the U.S, Geological Survey (USGS) from data collected by U.S. Bureau of Reclamation and <br />USOS and published in OualilJl<QWater Colorado River Bosin, Proere.<s Renon No, 17, 1995, <br /> <br />'Data values for 1972 became the Numeric Criteria. <br /> <br />'Data based upon provisional records, <br /> <br />2-5 <br />