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<br />WEIGHTED M:lNIHLY SALINITIES AT 1/ <br />SEl.ECI'ED mWRAIX> RIVER SffiTIONS - <br />AND RUNNING 12-M:JNTH NIB-IMPERIAL I'I.CM'-WEIGHTED SALINITY DIFFERENI'IAL <br />(in partS per million) <br /> <br />c::. <br /> <br />..... <br />r-:. <br />,,~ <br /><:0: <br /> <br /> Below Below Palo Verde At At Northerly Inter- Running <br /> H=ver Dam Parker Dam Canal Near Bl vthe Imoerial Dam national Boundarv 12-M:Jnth <br /> 5-Year2/ 5-Year2/ 5-Year 2/ 5-Y~ 5-Y~/ F1CM-wtd. . <br /> Avg.- Avg.- Avg.- Avg..I Avg.- Differential- <br /> M:lnth 1974-78:99:2000 1974-78:99:2000 1974-78:99:2000 1974-78:1999:2000 1974-78:1999:2000 1999 2000 <br /> Jan. 690 591 559 709 59-1 604 751 598, 634 913 687 688 1,041 730 838 44.6 87.6 <br /> Feb. 675 610 571 706 579 568 732 609 576 835 701 666 998 856 806 57.8 86.5 <br />, . March 684 583 586 699 604 576 727 616 586 805 710 650 925 782 743 60.3 88.6 <br />-.J <br />, April 680 585 609 700 614 573 714 625 589 801 684 622 892 773 733 59.5 91.5 <br /> May 677 575 607 698 595 584 709 618 596 822 705 646 962 795 768 55.9 95.3 <br /> June 678 571 584 695 580 586 712 599 597 812 680 643 956 778 758 54.5 97.3 <br /> July 682 604 573 688 597 597 709 610 584 797 678 653 909 732 759 51.6 101.8 <br /> August 690 604 566 686 586 582 706 592 582 800 698 664 907 822 788 52.0 102.7 <br /> Sep. 672 581 543 686 564 570 737 592 579 815 643 672 952 692 791 53.1 109.6 <br /> Oct. 680 561 556 689 599 739 600 854 620 673 1,070 688 750 51.9 116.9 <br /> Nov. 682 562 572 692 600 746 607 897 674 684 1,010 770 810 57.8 120.2 <br /> Dec. 681 563 578 702 580 731 604 877 725 683 999 848 813 77.7 119.. <br /> <br />General Notes: <br /> <br />1/ Salinities based. on 'sum of constituents' except for Below Hoover Dam which are based. on pan residue <br />-;,/ 5-Year averages are arithrretic <br /> <br />1/ 12-rronth flCM-weighted. differential between NIB and Imperial through rronth shown in left column. <br />