07/24/09
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                May 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     (%)     (%)    (%)
05/01/09 12,525    220      15      701    1,945   2,011  2,018  15,406  2,000    994     923    172    98     63   2,053    1,772   11,353 11,022  11,353  11.8%   10.9%  11.7%
05/02/09 12,340    220      15      753    2,018   2,043  2,102  15,346   -739    997    1,018   164    50     76   2,205    1,876   13,879 11,654  12,616  12.8%   11.7%  12.5%
05/03/09 13,263    220      29     1,643   2,186   2,083  2,174  17,341   -917    989    1,022   154    50     70   2,185    1,981   16,073 12,480  13,768  11.3%   11.9%  13.1%
05/04/09 13,988    220      39     2,035   2,318   2,120  2,214  18,600  -1,095  1,090   1,012   136    35     72   2,275    2,043   17,420 13,342  14,681  11.1%   11.7%  13.4%
05/05/09 16,244    220      43     2,361   2,332   2,163  2,239  21,200  -1,095  1,297   1,018   142    35     67   2,489    2,143   19,806 14,556  15,706  10.8%   11.0%  13.6%
05/06/09 20,520    220      38     2,336   2,342   2,209  2,253  25,456  -1,323  1,291   1,021   170    43     68   2,507    2,243   24,273 16,348  17,134   8.9%   10.1%  13.6%
05/07/09 27,708    220      86     2,326   2,324   2,261  2,261  32,664  1,465   1,295   1,015   160    54     67   2,482    2,312   28,717 18,789  18,789   6.9%   8.6%   12.9%
05/08/09 27,919    220      61     1,926   2,308   2,301  2,266  32,434  1,694   1,292    957    157    66     70   2,410    2,290   28,331 21,214  19,981   6.7%   7.4%   11.8%
05/09/09 26,563    220      43     1,714   2,298   2,327  2,277  30,838  1,972   1,289    971    162     0     68   2,490    2,273   26,376 22,999  20,692   7.3%   7.0%   11.0%
05/10/09 22,849    220      32     1,477   2,368   2,342  2,292  26,946  1,972   1,291    966    162    50     67   2,436    2,255   22,539 23,923  20,877   8.2%   7.4%   10.4%
05/11/09 20,809    220      27     1,292   2,423   2,363  2,309  24,771  2,250   1,492    966    157    50     68   2,633    2,325   19,888 24,276  20,787   9.7%   8.3%   10.4%
05/12/09 18,063    220      23     1,171   2,480   2,385  2,324  21,957  2,300   1,491    935    171    107    75   2,565    2,380   17,092 23,888  20,479  10.6%   9.4%   10.3%
05/13/09 16,602    220      18     1,083   2,492   2,411  2,338  20,415  2,300   1,489    912    171    59     85   2,597    2,428   15,518 22,637  20,097  11.5%   10.5%  10.3%
05/14/09 14,956    220      14     1,014   2,505   2,425  2,343  18,709  2,350    789    1,804   174    40     99   2,826    2,473   13,533 20,468  19,628  13.6%   11.8%  10.5%
05/15/09 13,629    220      11      942    2,410   2,436  2,345  17,212  2,350    496    1,807   161    60    104   2,507    2,432   12,355 18,186  19,143  13.0%   12.7%  10.3%
05/16/09 12,726    220      3       940    2,372   2,461  2,358  16,261  2,400    494    1,803   161    50    103   2,511    2,398   11,350 16,039  18,656  13.8%   13.5%  10.1%
05/17/09 12,135    220      1       935    2,547   2,480  2,369  15,838  2,450    495    1,806   172    50    110   2,533    2,300   10,855 14,370  18,197  14.2%   13.7%  9.7%
05/18/09 12,363    220      0       885    2,555   2,485  2,378  16,023  2,450   1,300   1,360   174    145   109   2,799    2,419   10,774 13,068  17,785  15.7%   14.6%  10.2%
05/19/09 12,473    220      0       826    2,517   2,465  2,376  16,036  2,500   1,293    899    180    85    105   2,393    2,384   11,143 12,218  17,435  13.1%   14.3%  10.2%
05/20/09 12,659    220      0       794    2,348   2,429  2,370  16,021  2,550   1,286    898    152    87     81   2,329    2,345   11,142 11,593  17,121  13.1%   14.0%  10.2%
05/21/09 13,224    220     32      756     2,251  2,397  2,361  16,483   2,550   1,286    901    157    67    83    2,361   2,188   11,572  11,313 16,857   12.9%   13.0%  10.2%
05/22/09 13,079    220     48      728     2,191  2,359  2,349  16,266   2,600   1,296    897    160    93    109   2,370   2,188   11,296  11,162 16,604   12.9%   13.0%  10.8%
05/23/09 12,399    220     46      725     2,101  2,286  2,336  15,491   2,650   1,291    899    143    50    116   2,399   2,190   10,442  11,032 16,336   13.8%   13.2%  11.5%
05/24/09 12,197    220     67      680     2,039  2,207  2,322  15,203   2,700   1,281    896    134    50    102   2,362   2,187   10,141  10,930 16,078   14.0%   13.6%  12.0%
05/25/09 12,622    220     85      638     2,002  2,122  2,306  15,567   2,750   1,298    898    133    50    88    2,367   2,188   10,450  10,884 15,853   13.8%   13.9%  12.6%
05/26/09 12,822    220     86      591     1,919  2,054  2,289  15,638   2,750   1,297    899    157    50    103   2,406   2,190   10,482  10,789 15,646   13.7%   13.8%  13.0%
05/27/09 12,833    220     86      551     1,872  1,984  2,270  15,562   2,800   1,295    901    165   410    112   2,063   2,196   10,699  10,726 15,463   11.5%   13.0%  12.5%
05/28/09 13,366    220     367     524     1,765  1,910  2,248  16,242   2,850    494     981    222   101    111   1,707   1,955   11,685  10,742 15,328    8.5%   11.2%  11.1%
05/29/09 12,299    220     464     522     1,671  1,840  2,226  15,176   2,900    496    1,006   204    41    113   1,778   1,724   10,498  10,628 15,161    9.6%   9.8%   9.7%
05/30/09 11,791    220     526     529     1,610  1,776  2,205  14,676   2,950    494     842    217    50    107   1,610   1,438   10,116  10,582 14,993    8.8%   8.9%   8.7%
05/31/09 11,694    220     569     537     1,594  1,713  2,184  14,614   3,000    483      0     211    50    104    749    1,107   10,865  10,685 14,860    3.0%   7.2%   6.8%

  Total  478,660   6,820   2,874   33,935  68,103 68,847 70,702 590,392  58,334  33,457  32,237 5,159  2,232 2,775  71,396   66,626 460,663 462,543528,105   346.6% 351.1% 345.2%
Average   15,441     220      93    1,095   2,197  2,221  2,281  19,045   1,882   1,079   1,040   166     72    90   2,303    2,149  14,860 14,921            11.2%  11.3%  11.1%