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<br />WEIGHI'ED M:NIHLY SALDITTIES Kr <br />SEIECI'ED CDlDRAIXl RIVER SI'ATIONS Y <br />1IND RUNNING 12-MJN.IH NIB-IMPERIAL FI.J:M-WEIGHTED SALrnlTY DIFF'ERENI'IAL <br />(in parts per million) <br /> <br />o <br />o <br />....... <br />N <br />....... <br />t..::J <br /> <br /> Below Below Palo Verde At At Northerly Inter- Runni.n:l <br /> Hoover Dam Parker Dam Canal Near Blvthe IJnoerial Dam national Bounclanr 12-Mcnth <br /> 5-Yeary 5-Yeary 5-Year y 5-Y~ 5-Y~ Flow--Wtd. . <br /> Avg. Avg. Avg. Avg.'Y Avg.'Y Differential <br /> Month 1974-78:99:2000 1974-78:99:2000 1974-78:99:2000 1974-78:1999:2000 1974-78:1999:2000 1999 2000 <br /> Jan. 690 591 559 709 591 604 751 598 634 913 687 688 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 />I April 680 585 609 700 614 573 714 625 589 801 684 622 892 773 733 59.5 91.5 <br />-J May 677 575 607 698 595 584 709 618 596 822 705 646 962 795 768 55.9 95.3 <br />I <br /> J\llle 678 571 584 695 580 586 712 599 597 812 680 643 956 778 758 54.5 97.3 <br /> July* 682 604 573 688 597 597 709 610 550 797 678 653 909 732 759 51.6 101. 8 <br /> August 690 604 566 686 586 706 592 800 698 664 907 822 788 52.0 102.7 <br /> Sep. 672 581 686 564 737 592 815 643 952 692 53.1 <br /> Oct. 680 561 689 599 739 600 854 620 1,070 688 51.9 <br /> Nov. 682 562 692 600 746 607 897 674 1,010 770 57.8 <br /> Dec. 681 563 702 580 731 604 877 725 999 848 77.7 . <br /> <br />* '!here appears to be an error for July 2000 for Palo Verde Canal near Blythe. USSR is examining the data. <br /> <br />General Notes: <br /> <br />Y Salinities basej on 'sum of constituents' except for Below Hoover Dam which are basej on pan residue <br /> <br />y 5-Year averages are arithmetic <br />1/ 12-month flow-weighted differential between NIB an:l Imperial through month shown in left colUllU1. <br />