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<br />: <br /> <br />WEIGHTED MONTHLY SALINITIES AT <br />SELECTED COLORADO RIVER STATIONS 11 <br />AND RUNNING 12-MONTH NIB-INPERIAL FLOW-WEIGHTED SALINITY DIFFERENTIAL <br />(in parts per million) <br /> <br />Palo Verde At At Northerly Inter- Running 0 <br />Canal Near Blvthe ImDerial Dam national Boundarv 12-Month 0 <br />5-Year 5-Year 5-Year Flow-Wtd. ~ <br />avg.~1 avg.Y avg.Y Differential " ~ <br />1974-78 2001 2002 1974-78 2001 2002 1974-78 2001 2002 2001 2002 = <br /> . <br />751 599 913 707 708 1,041 847 856 119.3 139.0 <br />732 593 835 655 676 998 758 839 115,5 146.9 <br />727 599 805 659 925 747 114.8 109.3 <br />714 566 801 642 692 722 111.4 <br />709 603 822 651 962 831 114.2 <br />712 595 812 655 956 816 116.9 <br />709 597 797 682 909 804 117.4 <br />706 597 800 702 907 876 119,1 <br />737 594 815 707 952 898 121.9 <br />739 601 854 712 1,070 1,010 132.4 <br />746 605 897 714 1,010 920 136.2 <br />731 877 743 999 696 138.8 <br /> . <br /> <br /> Below Below <br /> Hoover Dam Parker Dam <br /> 5-Year 5-Year <br /> avg.Y avg.Y <br /> 1974-78 2001 2002 1974-78 2001 2002 <br /> Month <br /> Jan. 690 580 582 709 576 <br /> Feb. 675 578 611 706 591 <br /> March 664 585 605 699 590 <br /> April 660 588 700 562 <br />, May 677 588 698 593 <br />... June 678 588 695 584 <br />, <br /> July 682 592 688 590 <br /> August 690 584 686 594 <br /> Sept. 672 593 666 590 <br /> Oct. 680 581 689 596 <br /> Nov. 682 601 692 594 <br /> Dec. 681 585 702 <br /> <br />General Notes: <br /> <br />l' Salinities based on .sum of constituents". <br /> <br />", 5- Year averages are arithmetic <br />~, 12-month f1ow-welghted'differential between NIB and Imperial Dam through month shown in left column. <br />