04/17/09
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                March 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     (%)     (%)    (%)
03/01/09 34,553    240     250      978    1,611   1,665  1,545  37,632   265    3,391   3,454   197     0     0    7,043    6,434   30,324 35,079  30,324  18.2%   15.3%  18.8%
03/02/09 30,404    237     283      922    1,545   1,631  1,526  33,391   -826   2,997   3,490   201     0     0    6,689    6,564   27,528 35,078  28,926  19.4%   17.3%  18.5%
03/03/09 28,333    234    1,694    2,413   1,507   1,602  1,524  34,181  -1,739  2,992   3,007   209     0     0    6,207    6,444   29,713 35,179  29,188  17.5%   18.4%  17.5%
03/04/09 33,939    231    2,223    5,384   1,519   1,583  1,528  43,296  -3,336  2,294   2,827   238     0     0    5,359    5,869   41,273 35,669  32,210  11.8%   15.9%  15.4%
03/05/09 43,480    229    1,072    5,615   1,542   1,626  1,619  51,938  -3,971  2,248   2,173   238     0     0    4,659    5,180   51,249 37,063  36,017   8.5%   12.0%  13.2%
03/06/09 46,853    226     560     2,670   1,983   1,618  1,619  52,292  -3,971  2,248   1,909   239     0     0    4,396    4,566   51,867 38,407  38,659   7.9%   9.3%   11.3%
03/07/09 46,397    223     590    1,854    1,620  1,691  1,691  50,684  (2,830)  2,245   1,909   239    0      0    4,393   4,244   49,121  40,154 40,154    8.2%   8.2%   10.3%
03/08/09 42,300    220     354    1,254    2,123  1,757  1,730  46,251  (1,867)  2,325   1,825   229    0      0    4,380   4,154   43,738  42,070 40,602    9.0%   8.4%   9.9%
03/09/09 35,669    220     305    1,844    2,004  1,814  1,750  40,042    415    2,489   1,900   239    0      0    4,628   4,231   34,999  43,137 39,979   11.0%   9.3%   9.9%
03/10/09 30,167    220     270    1,096    1,905  1,852  1,753  33,658   1,100   2,488   2,548   238    0      0    5,274   4,524   27,284  42,790 38,710   15.0%   11.3%  10.6%
03/11/09 26,569    220     243     956     1,786  1,872  1,747  29,774   1,150   2,995   2,805   239    0      0    6,040   5,075   22,584  40,120 37,244   19.5%   14.7%  12.1%
03/12/09 23,551    220     225     865     1,682  1,818  1,735  26,543   1,150   2,995   3,425   239    0      0    6,658   5,752   18,735  35,475 35,701   24.2%   19.2%  14.2%
03/13/09 20,862    220     206     803     1,606  1,808  1,721  23,697   1,200   3,422   3,676   239    0      0    7,338   6,439   15,159  30,232 34,121   30.0%   24.1%  16.5%
03/14/09 19,038    220     186     747     1,550  1,718  1,705  21,741   1,250   3,313   4,158   230    0      0    7,702   6,996   12,789  25,041 32,597   34.4%   29.2%  18.7%
03/15/09 15,872    220     171     719     1,492  1,639  1,688  18,474   1,250   3,308   4,197   136    0      0    7,642   7,358    9,582  20,162 31,063   40.6%   34.5%  20.4%
03/16/09 14,816    220     162     715     1,455  1,573  1,672  17,368   1,300   3,292   4,231   133    0     15    7,671   7,500    8,397  16,362 29,646   43.3%   39.1%  21.4%
03/17/09 14,145    220     158     655     1,438  1,521  1,658  16,616   1,350   3,491   4,141   132    0      5    7,769   7,553    7,497  13,535 28,344   45.9%   43.2%  22.4%
03/18/09 13,112    220     156     632     1,423  1,473  1,640  15,543   1,350   3,489   4,150   131    0      3    7,773   7,598    6,420  11,226 27,126   49.1%   46.0%  23.9%
03/19/09 13,193    220     155     673     1,344  1,432  1,624  15,585   1,400   3,497   3,640   126    0      0    7,263   7,469    6,922  9,538  26,062   45.8%   46.9%  25.6%
03/20/09 15,169    220     143     658     1,323  1,393  1,606  17,513   1,400   3,497   3,417   118    0      4    7,037   7,230    9,076  8,669  25,213   39.5%   44.6%  27.1%
03/21/09 15,060    220     134     689     1,276  1,364  1,591  17,379   1,450   3,497   2,914   112    0      1    6,524   6,821    9,405  8,186  24,460   36.9%   40.5%  28.1%
03/22/09 13,355    220     125     739     1,288  1,343  1,578  15,727   1,272   3,497   2,721   107    0      4    6,329   6,514    8,126  7,978  23,718   39.5%   38.6%  29.5%
03/23/09 12,783    220     122     934     1,310  1,324  1,566  15,369   1,044   2,491   2,720   112    58     2    5,266   5,947    9,059  8,072  23,080   33.5%   36.7%  29.1%
03/24/09 12,847    220     119     933     1,305  1,297  1,552  15,424   1,094   2,497   2,119   112    20     3    4,711   5,348    9,620  8,375  22,520   29.8%   34.3%  27.9%
03/25/09 11,872    220     110     817     1,232  1,273  1,538  14,251   1,094   2,256   1,880   112    12     1    4,236   4,654    8,921  8,733  21,976   28.9%   30.8%  25.8%
03/26/09 11,537    220     106     764     1,180  1,249  1,523  13,807   1,144   2,257   1,882   117    28     3    4,230   4,297    8,434  8,949  21,455   29.8%   29.5%  25.1%
03/27/09 11,407    220     101     758     1,150  1,230  1,509  13,636   1,372   2,249   1,885   112    29     1    4,217   4,136    8,047  8,802  20,958   30.1%   29.6%  25.2%
03/28/09 11,043    220     97      745     1,144  1,208  1,495  13,249   1,650   2,250   1,881   120    25     0    4,225   4,134    7,374  8,511  20,473   31.0%   30.3%  26.1%
03/29/09 10,618    220     93      781     1,138  1,183  1,483  12,850   1,650   2,497   2,482   128    0      0    5,107   4,414    6,093  8,221  19,977   38.7%   33.2%  28.7%
03/30/09 10,844    220     89      813     1,131  1,164  1,473  13,097   1,650   2,493   2,747   127    61     5    5,310   4,783    6,137  7,804  19,516   39.5%   36.4%  31.7%
03/31/09 10,521    220     84      808     1,174  1,154  1,462  12,807   1,700   2,253   2,648   132    53     3    4,983   5,040    6,124  7,304  19,084   37.9%   38.7%  34.0%

  Total  680,309   6,900  10,586   40,234  45,786 46,874 49,851 783,815  11,160  87,251  88,759 5,285    287    48 181,057  177,270 591,598 685,921899,102   874.5% 845.4% 648.7%
Average   21,945     223     341    1,298   1,477  1,512  1,608  25,284     360   2,815   2,863   170      9     2   5,841    5,718  19,084 22,126            28.2%  27.3%  20.9%