09/01/04
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)
Italic Red numbers were updated on 9/1/04 when a leap year calculation error was discovered.
                                                                                April 2004
Estimated numbers are in bold print
                                         DELTA INFLOW                                           DELTA EXPORTS                               OUTFLOW INDEX         EXPORT/INFLOW
         Sacto R          Yolo + East Side        S. Joaquin Riv Total          Clifton         Contra Byron        Total    3-day
        @Freeport  SRTP    Misc   Streams          7-day Monthly Delta           Court   Tracy  Costa Bethany NBA   Delta     Avg     NDOI   7-day Monthly  Daily 3 Day 14 Day
  Date   prev dy prev wk prev dy  prev dy prev dy   Avg    Avg   Inflow   NDCU   (CLT)   (TRA)  (CCC) (BBID)       Exports TRA & CLT daily    Avg    Avg     (%)   (%)   (%)
04/01/04  23,777     225       0      904   2,386  2,605  2,306  27,292   1,750   4,996   4,391   363     11    16   9,755    9,742  15,787 21,987  15,787   34.4% 33.7% 27.7%
04/02/04  22,289     222       0      899   2,306  2,601  2,508  25,716   1,750   4,292   4,342   361     16    14   8,993    9,017  14,973 20,384  15,380   33.5% 33.1% 26.5%
04/03/04  21,129     218       0      929   2,710  2,619  2,640  24,986   1,750   3,490   4,387   359     13    14   8,238    8,633  14,998 18,632  15,253   31.5% 33.2% 26.1%
04/04/04  20,513     215       0      923   2,903  2,643  2,709  24,554   1,800   3,354   4,180   329      8    14   7,869    8,015  14,884 17,161  15,160   30.7% 31.9% 24.9%
04/05/04  21,081     211       0      930   2,915  2,666  2,742  25,137   1,800   4,199   4,355   327     58    19   8,841    7,988  14,496 16,061  15,028   33.8% 32.0% 25.5%
04/06/04  23,602     208       0      929   2,877  2,687  2,737  27,616   1,800   5,219   4,361   287     58    23   9,831    8,556  15,985 15,547  15,187   34.5% 33.0% 27.7%
04/07/04  26,015     204       0      935   2,710  2,685  2,685  29,864   1,800   5,876   1,945   290     41    22   8,093    8,652  19,972 15,871  15,871   26.1% 31.2% 28.3%
04/08/04  31,376     201       0      923   2,371  2,667  2,622  34,871   1,850   1,986   1,217   295     74    26   3,450    6,868  29,571 17,840  17,583    9.0% 22.1% 22.5%
04/09/04  33,575     201       0      934   2,185  2,582  2,566  36,895   1,850   3,497   1,650   351     77    32   5,454    5,390  29,591 19,928  18,917   13.7% 15.7% 17.6%
04/10/04  34,898     201       0      942   2,113  2,462  2,515  38,154   1,850   3,684   2,628   374     77    29   6,639    4,888  29,665 22,023  19,992   16.3% 13.1% 15.9%
04/11/04  36,052     201       0      918   2,062  2,345  2,477  39,233   1,850   2,991   4,025   366     77    30   7,335    6,159  30,048 24,190  20,906   17.7% 16.0% 19.9%
04/12/04  35,801     201       0      896   2,094  2,241  2,450  38,992   1,850   2,968   4,433   364     83    33   7,715    6,910  29,427 26,323  21,616   18.8% 17.6% 22.1%
04/13/04  34,853     201       0      846   2,154  2,151  2,421  38,054   1,900   1,467   4,411   366     81    24   6,187    6,765  29,967 28,320  22,259   15.2% 17.2% 21.3%
04/14/04  33,118     201       0      839   2,076  2,106  2,395  36,234   1,900     981   3,871   338     43    25   5,172    6,044  29,162 29,633  22,752   13.3% 15.8% 18.7%
04/15/04  31,624     201       0      834   2,057  2,134  2,394  34,716   1,900     243   1,194   307     42    46   1,747    4,056  31,069 29,847  23,306    4.0% 11.0% 12.3%
04/16/04  30,450     201       0      803   2,381  2,207  2,409  33,835   1,900   1,495       0   299     55    39   1,778    2,595  30,157 29,928  23,735    4.3%  7.3%  7.7%
04/17/04  30,435     201       0      774   2,626  2,300  2,427  34,036   1,900   1,496       0   297     42    29   1,781    1,476  30,355 30,027  24,124    4.3%  4.2%  4.2%
04/18/04  30,261     201       0      748   2,714  2,421  2,455  33,924   1,501      97   1,432   289     43    31   1,807    1,507  30,616 30,108  24,485    4.4%  4.3%  4.2%
04/19/04  28,710     201       0      710   2,936  2,556  2,489  32,557    (496)    892     571   295    159    34   1,632    1,496  31,421 30,393  24,850    4.0%  4.2%  4.0%
04/20/04  24,841     201       0      683   3,102  2,702  2,519  28,827  (1,010)  1,493       0   300     43    33   1,783    1,495  28,054 30,119  25,010    5.0%  4.4%  4.0%
04/21/04  21,627     201       0      669   3,096  2,850  2,547  25,593  (1,010)  1,452       0   304     40    36   1,751    1,469  24,851 29,503  25,002    5.5%  4.8%  4.0%
04/22/04  18,994     201       0      696   3,097  2,963  2,575  22,988  (1,010)     67   1,430   149     34    47   1,659    1,481  22,339 28,256  24,881    6.4%  5.6%  4.3%
04/23/04  17,435     201       0      704   3,170  3,041  2,601  21,510    (610)    897     573   274     56    42   1,730    1,473  20,391 26,861  24,686    6.6%  6.1%  4.4%
04/24/04  15,946     201       0      706   3,172  3,103  2,624  20,025   1,437   1,491       0   332     43    44   1,824    1,486  16,764 24,920  24,356    7.2%  6.7%  4.6%
04/25/04  15,049     201       0      703   3,149  3,147  2,649  19,102   1,950   1,490       0   332     43    49   1,829    1,484  15,323 22,735  23,995    7.6%  7.1%  4.8%
04/26/04  14,229     201       0      679   3,241  3,181  2,675  18,350   1,950     116   1,315   329    124    55   1,691    1,471  14,709 20,347  23,638    7.1%  7.3%  4.9%
04/27/04  13,145     201       0      666   3,339  3,212  2,699  17,351   1,950     860     535   350     91    68   1,721    1,439  13,680 18,294  23,269    7.5%  7.4%  5.0%
04/28/04  11,865     201       0      688   3,317  3,243  2,721  16,071   2,000   1,492       0   357     69    66   1,847    1,439  12,224 16,490  22,874    8.9%  7.8%  5.2%
04/29/04  11,549     201       0      733   3,314  3,258  2,740  15,797   2,000   1,492       0   367     91    80   1,848    1,460  11,949 15,006  22,498    8.9%  8.4%  5.7%
04/30/04  11,827     201       0      756   3,275  3,276  2,759  16,059   2,000      94   1,319   350     62    84   1,786    1,466  12,273 13,846  22,157    8.4%  8.7%  6.0%


  Total  726,066   6,126       0   24,299  81,848 80,652 77,055 838,339  41,851  64,166  58,566 9,702  1,753 1,105 131,785  130,916 664,703 690,579634,555  428.3%451.1%410.3%
Average   24,202     204       0      810   2,728  2,688  2,569  27,945   1,395   2,139   1,952   323     58    37   4,393    4,364  22,157 23,019           14.3% 15.0% 13.7%