09/09/04
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                August 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     (%)   (%)   (%)
08/01/04  19,808     199       0      267   1,071  1,043  1,100  21,345   4,200   6,677   4,335   244     50   110  11,315   10,717   5,830  5,996   5,830   51.4% 49.6% 48.2%
08/02/04  19,402     200       0      256   1,100  1,042  1,120  20,958   4,200   6,398   4,272   243     74   101  10,940   10,837   5,817  5,967   5,824   50.6% 50.7% 49.1%
08/03/04  19,085     200       0      251   1,140  1,051  1,105  20,676   4,150   6,830   4,410   241     12    97  11,566   10,974   4,961  5,890   5,536   54.3% 52.1% 50.2%
08/04/04  19,407     201       0      250   1,076  1,068  1,102  20,934   4,150   7,177   4,516   249     39   101  12,004   11,201   4,781  5,751   5,347   55.7% 53.5% 51.7%
08/05/04  19,170     202       0      238   1,090  1,083  1,099  20,700   4,100   7,170   4,488   240     51   102  11,949   11,530   4,651  5,573   5,208   56.1% 55.3% 53.6%
08/06/04  19,210     203       0      224   1,090  1,094  1,098  20,727   4,100   5,677   4,432   258     74   111  10,404   11,153   6,222  5,481   5,377   48.4% 53.4% 52.0%
08/07/04  19,109     203       0      224   1,092  1,096  1,096  20,628   4,050   5,670   4,438   306     50   113  10,477   10,625   6,101  5,480   5,480   48.8% 51.1% 49.6%
08/08/04  18,935     204       0      236   1,082  1,098  1,098  20,457   4,050   5,679   4,423   252     50   112  10,416   10,107   5,991  5,503   5,544   49.1% 48.8% 47.4%
08/09/04  18,605     204       0      246   1,117  1,094  1,100  20,172   4,000   5,675   4,403   257      0   111  10,446   10,096   5,726  5,490   5,564   50.0% 49.3% 47.8%
08/10/04  18,429     204       0      251   1,109  1,088  1,093  19,993   4,000   5,780   4,433   254     58   109  10,518   10,131   5,475  5,564   5,555   50.8% 50.0% 48.3%
08/11/04  18,355     204       0      253   1,037  1,078  1,087  19,849   3,950   5,773   4,484   249     57   110  10,560   10,183   5,339  5,644   5,536   51.4% 50.7% 48.8%
08/12/04  18,261     204       0      261   1,021  1,058  1,075  19,747   3,950   5,775   4,427   248     54   109  10,505   10,224   5,292  5,735   5,515   51.4% 51.2% 49.2%
08/13/04  18,037     204       0      258     950  1,039  1,066  19,449   3,900   6,621   4,408   245     49   116  11,342   10,496   4,207  5,447   5,415   56.5% 53.1% 50.9%
08/14/04  18,122     204       0      249     956  1,029  1,063  19,531   3,850   7,143   4,446   244     38   120  11,914   10,940   3,767  5,114   5,297   59.1% 55.6% 53.5%
08/15/04  17,946     204       0      254   1,015  1,031  1,067  19,419   3,850   6,629   4,481   246     38   117  11,435   11,243   4,134  4,849   5,220   57.0% 57.5% 55.4%
08/16/04  18,022     204       0      259   1,130  1,042  1,075  19,615   3,800   6,882   4,450   243     74   112  11,614   11,344   4,201  4,631   5,156   57.4% 57.9% 56.1%
08/17/04  17,696     204       0      257   1,187  1,053  1,077  19,344   3,800   7,024   4,450   247     36   121  11,806   11,306   3,738  4,383   5,073   59.1% 57.8% 56.2%
08/18/04  17,388     204       0      259   1,113  1,064  1,078  18,964   3,750   5,671   4,450   249     30   111  10,451   10,976   4,763  4,300   5,055   53.2% 56.6% 54.9%
08/19/04  17,433     204       0      256   1,096  1,079  1,077  18,989   3,700   7,177   4,450   246     51    99  11,921   11,074   3,368  4,025   4,966   61.0% 57.8% 55.8%
08/20/04  17,266     204       0      249   1,054  1,087  1,073  18,773   3,700   7,178   4,450   244     75   122  11,919   11,125   3,154  3,875   4,876   61.5% 58.6% 56.4%
08/21/04  17,046     204       0      233   1,013  1,095  1,073  18,496   3,650   7,177   4,434   241     50   118  11,921   11,622   2,925  3,755   4,783   62.5% 61.7% 59.3%
08/22/04  16,661     204       0      228   1,069  1,106  1,079  18,162   3,600   7,179   4,430   239     40   116  11,924   11,616   2,638  3,541   4,685   63.7% 62.6% 59.8%
08/23/04  16,741     204       0      221   1,207  1,125  1,090  18,373   3,600   7,169   4,414   255     51   109  11,896   11,601   2,877  3,352   4,607   62.8% 63.0% 60.2%
08/24/04  17,232     204       0      220   1,325  1,152  1,099  18,981   3,550   7,142   4,422   255     43    97  11,873   11,585   3,558  3,326   4,563   60.7% 62.4% 60.4%
08/25/04  17,424     204       0      222   1,301  1,176  1,105  19,151   3,500   7,165   4,443   248     49    99  11,905   11,585   3,746  3,181   4,530   60.4% 61.3% 60.5%
08/26/04  17,880     204       0      215   1,263  1,204  1,111  19,562   3,450   6,619   4,418   236     36   106  11,343   11,403   4,769  3,381   4,540   56.2% 59.1% 59.6%
08/27/04  17,968     204       0      202   1,247  1,228  1,114  19,621   3,450   6,988   4,394   259     25   111  11,727   11,342   4,444  3,565   4,536   57.9% 58.1% 59.3%
08/28/04  17,181     204       0      201   1,186  1,250  1,117  18,772   3,400   7,058   4,401   261     25   113  11,809   11,293   3,563  3,656   4,501   60.9% 58.3% 59.2%
08/29/04  16,849     204       0      212   1,221  1,260  1,123  18,486   3,350   7,170   4,396   245     13   118  11,917   11,469   3,219  3,739   4,457   62.5% 60.4% 60.4%
08/30/04  16,612     204       0      224   1,274  1,270  1,132  18,314   3,300   7,159   4,353   222     64   114  11,785   11,513   3,229  3,790   4,416   62.5% 62.0% 60.9%
08/31/04  16,248     204       0      250   1,397  1,267  1,137  18,099   3,250   6,372   4,341   211     40   120  11,005   11,264   3,844  3,831   4,398   59.0% 61.3% 59.8%

  Total  557,528   6,304       0    7,426  35,029 34,449 33,927 606,287 117,350 205,805 137,096 7,672  1,395 3,429 352,608  342,578 136,329 143,815157,391 1751.7%1740.61694.4%
Average   17,985     203       0      240   1,130  1,111  1,094  19,558   3,785   6,639   4,422   247     45   111  11,374   11,051   4,398  4,639           56.5% 56.1% 54.7%