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<br />" <br /> <br />'< <br /> <br />~ <br /> <br />WEIGHTED MONTHLY SALINITY AT <br />SELECTED COLORADO RIVER STATIONS l' <br />AND RUNNING 12-MONTH NIB-IMPERIAL FLOW-WEIGHTED SALINITY DIFFERENTIAL <br />(in parts per million) <br /> <br /> 0 <br /> 0 <br /> ...... <br /> Below Below Palo Verde At At Northerly Inter- Runnin~ <br /> Hoover Dam Parker Dam Canal Near Blythe Imperial Dam national Boundary 12-Montl'4--- <br /> 5-Year 5-Year 5-Year 5-Year 5-Year Flow-WId, <br /> avgJI avg,<' avg,<' ayg,<' avg,!' Differential 31 <br /> 1974-78 2003 2004 1974-78 2003 2004 1974-78 2003 2004 1974-78 2003 2004 1974-78 2003 2004 2003 2004 <br /> Month . <br /> Jan, 690 623 653 709 665 751 648 913 711 766 1,041 891 890 143,5 132,8 <br /> Feb, 675 640 657 706 627 732 636 835 700 708 998 798 817 137,3 134,8 <br /> March 684 601 648 699 621 727 629 805 679 695 925 787 787 137,7 133,3 <br /> April 680 615 645 700 628 714 631 801 680 704 892 777 770 134,9 128,9 - <br />, May 677 621 698 625 709 633 822 723 962 878 130,8 <br />'" June 678 621 695 632 712 634 812 711 956 844 127,2 <br />, <br /> July 682 623 688 635 709 637 797 671 909 810 127,6 <br /> August 690 620 686 631 706 635 800 689 907 867 131,0 <br /> Sept 672 618 686 634 737 643 815 708 952 869 133,2 <br /> Oct 680 628 689 634 739 639 854 726 1,070 930 133,0 <br /> Nov, 682 641 692 746 897 766 1,010 952 136.4 <br /> Dec, 681 645 702 731 877 772 999 896 136,0 <br /> . <br /> <br />General Notes: <br /> <br />11 Salinity based on "sum of constituents", <br /> <br />'2,,1 5-Year averages are arithmetical. <br /> <br />J.I 12-month flow-weighted differential between NIB and Imperial Dam through month shown in left column, <br />