09/15/09
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                August 2009
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     (%)     (%)    (%)
08/01/09 18,912    220     424      254     573     583    583   20,383  4,200   4,997   4,057   230    50     87   9,321    9,513   6,862   5,292  6,862   44.2%   47.3%  48.3%
08/02/09 18,624    220     448      267     583     585    604   20,142  4,200   4,970   4,065   227    50     86   9,297    8,880   6,645   5,519  6,753   44.6%   43.7%  45.1%
08/03/09 18,459    220     421      261     624     595    627   19,985  4,150   4,999   4,047   227    50     81   9,304    9,045   6,531   5,608  6,679   45.0%   44.6%  46.0%
08/04/09 18,108    220     383      258     675     608    631   19,644  4,150   4,989   4,147   231    60     83   9,389    9,072   6,105   5,748  6,536   46.2%   45.3%  46.2%
08/05/09 17,490    220     370      233     643     606    617   18,956  4,100   4,989   4,205   213    59     86   9,433    9,125   5,423   6,057  6,313   48.2%   46.4%  46.7%
08/06/09 15,921    220     366      218     562     603    608   17,287  4,100   4,541   4,135   194     0     87   8,957    9,002   4,230   6,095  5,966   50.2%   48.1%  46.5%
08/07/09 15,449    220     360      195     561     592    592   16,785  4,050   4,993   4,290   160    51     92   9,483    9,051   3,252   5,578  5,578   55.0%   51.0%  47.2%
08/08/09 15,118    220     346      205     498     584    584   16,387  4,050   4,192   4,105   154    50     87   8,487    8,752   3,850   5,148  5,362   50.3%   51.8%  45.8%
08/09/09 14,781    220     325      222     527     591    594   16,075  4,000   4,199   4,135   146    50     87   8,516    8,638   3,559   4,707  5,162   51.5%   52.3%  45.6%
08/10/09 14,654    220     134      245     670     591    602   15,923  4,000   4,194   3,995   139    93     86   8,321    8,273   3,602   4,289  5,006   50.8%   50.9%  44.2%
08/11/09 14,620    220      63      259     674     590    605   15,836  3,950   3,495   4,143   120    45     84   7,797    8,053   4,089   4,001  4,923   47.9%   50.1%  43.7%
08/12/09 14,222    220      16      249     639     593    603   15,346  3,950   3,494   4,128   120    50     85   7,776    7,816   3,620   3,743  4,814   49.3%   49.4%  43.0%
08/13/09 14,390    220      0       222     585     588    597   15,417  3,900   3,488   4,285   132    50     99   7,954    7,678   3,563   3,648  4,718   50.1%   49.1%  43.0%
08/14/09 13,859    220      0       216     524     590    591   14,819  3,850   4,195   4,087   136    49     92   8,460    7,892   2,509   3,542  4,560   55.6%   51.6%  45.2%
08/15/09 13,797    220      0       237     513     595    589   14,767  3,850   4,189   4,159   138    50     84   8,519    8,134   2,398   3,334  4,416   56.2%   53.9%  47.7%
08/16/09 13,783    220      0       257     560     587    591   14,820  3,800   4,200   4,151   136    50     79   8,514    8,327   2,506   3,184  4,296   56.0%   55.9%  49.9%
08/17/09 13,678    220      0       253     611     582    593   14,762  3,800   4,189   4,133   140    50     78   8,489    8,340   2,473   3,023  4,189   56.0%   56.1%  51.2%
08/18/09 13,313    220      0       221     640     576    594   14,394  3,750   3,489   4,194   141     0     71   7,894    8,118   2,750   2,831  4,109   53.4%   55.2%  51.1%
08/19/09 13,243    220      0       199     597     575    593   14,259  3,700   3,492   4,094   144    50     79   7,759    7,863   2,800   2,714  4,040   52.8%   54.1%  50.5%
08/20/09 13,243    220      0       186     580     578    591   14,229  3,700   3,495   4,021   163    50     77   7,705    7,595   2,824   2,609  3,980   52.5%   52.9%  49.5%
08/21/09 13,415    220      0      180      548    585    589   14,363   3,650   3,499   4,006   169    50    85    7,708   7,536    3,005  2,679   3,933   51.9%   52.4%  49.6%
08/22/09 14,011    220      0      173      558    588    589   14,962   3,600   3,464   4,024   169    50    81    7,688   7,503    3,674  2,862   3,921   49.7%   51.3%  49.7%
08/23/09 13,441    220      0      187      583    591    591   14,431   3,600   3,493   4,020   164    50    82    7,708   7,502    3,123  2,950   3,887   51.7%   51.1%  50.1%
08/24/09 13,648    220      0      199      629    595    594   14,696   3,550   3,469   4,011   150    50    79    7,658   7,493    3,488  3,095   3,870   50.5%   50.6%  50.3%
08/25/09 13,918    220      0      195      668    600    595   15,001   3,500   3,498   4,117   111    50    81    7,757   7,536    3,744  3,237   3,865   50.4%   50.9%  50.8%
08/26/09 13,306    220      0      180      634    598    594   14,340   3,450   4,199   4,150   122    50    78    8,498   7,814    2,392  3,179   3,808   57.9%   52.9%  53.0%
08/27/09 13,337    220      0      187      563    598    593   14,307   3,450   4,197   4,124   110    50    87    8,468   8,095    2,389  3,116   3,756   57.8%   55.3%  55.2%
08/28/09 13,702    220      0      197      554    599    592   14,673   3,400   4,196   4,132   114    0     86    8,527   8,332    2,746  3,079   3,720   56.8%   57.5%  57.0%
08/29/09 13,951    220      0      209      560    605    593   14,940   3,350   4,200   4,136   115    25    82    8,507   8,328    3,083  2,995   3,698   55.6%   56.7%  56.9%
08/30/09 13,994    220      0      229      628    610    595   15,071   3,300   4,193   4,148   120    13    81    8,530   8,334    3,241  3,012   3,682   55.3%   55.9%  57.0%
08/31/09 13,820    220      0      213      660    616    599   14,913   3,250   4,200   4,096   109    34    82    8,454   8,324    3,209  2,972   3,667   55.4%   55.4%  56.8%

  Total  456,207   6,820   3,656    6,806  18,424 18,378 18,513 491,913 117,350 127,393 127,537 4,744  1,386 2,591 260,879  255,965 113,684 119,844146,070  1608.9%1599.8%1522.7%
Average   14,716     220     118      220     594    593    597  15,868   3,785   4,109   4,114   153     45    84   8,415    8,257   3,667  3,866            51.9%  51.6%  49.1%