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<br />WEIGHI'ED MJNIHLY SALINITIES Kr <br />SEIECl'ED OJIDRAOO RIVER STATIONS 1/ <br />AND RUNNrnG 12-M:lNIH NIB-IMPERIAL Fl(M-wEIGIll'ED SALINI'IY DIFFERENI'IAL <br />(in parts per million) <br /> <br /> Belew Belew Palo Verde At At Northerly Inter- Runnin;J . <br /> Hoover Darn Parker Darn canal Near Bl vthe rmoerial D3m national Boundazv 12-.Mcnth <br /> 5-Yeary 5-Yeary 5-Year y 5-Y~ 5-Y~ Flew-wtd.y <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 /> April 680 585 609 700 614 573 714 625 589 801 684 622 892 773 733 59.5 91.5 <br />I May 677 575 607 698 595 584 709 618 596 822 705 646 962 795 768 55.9 95.3 <br />"" <br />I 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. 682 562 692 600 746 607 897 674 1,010 770 57.8 . <br /> D=c. 681 563 702 580 731 604 877 725 999 848 77.7 <br /> <br />.. USER adjusted July 2000 salinity for Palo verde canal near Blythe from 550 to 584. <br />General Notes: <br /> <br />1/ Salinities based on 'sum of =nstituents' except for Belew Hoover Darn which are based on pan residue <br />y 5-Year averages are arithmetic <br /> <br />.v 12-lOClnth flew-weighted differential between NIB and IJnperial through rront.h shewn in left =lUIlUl. <br />