04/23/10
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                March 2010
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     (%)     (%)    (%)
03/01/10 29,760    250     447     1,962   3,729   3,311  4,435  36,148   -876   3,773   3,719   234     5     21   7,741    6,980   29,282 26,027  29,282  20.7%   20.3%  24.9%
03/02/10 32,513    246     359     1,233   4,435   3,554  4,257  38,786   -598   3,972   4,174   235     6     24   8,399    7,441   30,984 28,072  30,133  21.0%   20.1%  26.1%
03/03/10 31,306    241     342      949    4,079   3,740  4,164  36,917  -1,282  4,198   4,131   235     0     24   8,587    7,989   29,612 29,146  29,960  22.6%   21.4%  27.5%
03/04/10 29,111    237     787     1,465   3,978   3,903  4,152  35,578  -2,651  4,192   4,155   226    11     18   8,581    8,274   29,649 30,041  29,882  23.4%   22.3%  28.0%
03/05/10 29,006    233     780     2,080   4,115   4,090  4,307  36,214  -2,601  4,691   4,162   235     0     27   9,115    8,509   29,701 30,739  29,846  24.4%   23.5%  28.2%
03/06/10 30,928    229     522     1,360   4,926   4,280  4,372  37,965  -2,601  4,688   4,148   235     0     20   9,092    8,678   31,475 30,892  30,117  23.3%   23.7%  28.0%
03/07/10 31,480    224     449     1,132   4,697   4,338  4,338  37,982  -2,601  4,194   4,170   235    12     23   8,612    8,684   31,972 30,382  30,382  22.0%   23.2%  27.2%
03/08/10 28,648    220     403      996    4,136   4,258  4,281  34,403  -1,867  4,193   4,149   235     0     20   8,597    8,514   27,672 30,152  30,043  24.2%   23.1%  26.1%
03/09/10 25,280    220     371      915    3,878   4,181  4,198  30,664   872    3,876   4,158   235     8     20   8,281    8,247   21,511 28,799  29,095  26.2%   24.0%  24.8%
03/10/10 23,035    220     347      860    3,534   4,076  4,102  27,996  1,100   4,198   3,786   235     0     19   8,239    8,120   18,657 27,234  28,052  28.5%   26.2%  24.2%
03/11/10 21,069    220     340      829    3,243   3,916  4,002  25,701   465    3,798   3,653   235     0     16   7,703    7,823   17,533 25,503  27,095  29.0%   27.8%  23.3%
03/12/10 20,131    220     318      775    2,996   3,612  3,902  24,440   465    2,496   3,669   104     8     18   6,278    7,200   17,696 23,788  26,312  25.2%   27.6%  21.5%
03/13/10 19,094    220     313      803    2,801   3,328  3,810  23,231  -2,451  1,997   2,878   112     0     17   5,005    6,164   20,677 22,246  25,879  21.0%   25.2%  18.7%
03/14/10 19,000    220     413     1,248   2,708   3,109  3,723  23,589  -2,401  1,988   2,441   107     0     2    4,537    5,156   21,453 20,743  25,563  18.8%   21.7%  16.0%
03/15/10 18,458    220     340     1,018   2,602   2,915  3,643  22,638  -2,401  2,478   2,661   118     0     0    5,258    4,815   19,782 19,616  25,177  22.7%   20.8%  15.5%
03/16/10 19,081    220     311      881    2,523   2,764  3,570  23,016  -1,667  2,995   2,720   114    12     0    5,817    5,094   18,866 19,238  24,783  24.8%   22.1%  17.0%
03/17/10 18,699    220     293      809    2,475   2,647  3,503  22,496  -1,617  3,491   2,711   114     6     0    6,312    5,686   17,801 19,115  24,372  27.5%   25.0%  19.6%
03/18/10 16,687    220     278      769    2,426   2,562  3,442  20,380  1,350   3,498   3,251   118    13     0    6,855    6,222   12,175 18,350  23,694  33.1%   28.3%  22.3%
03/19/10 16,295    220     267      761    2,398   2,504  3,387  19,941  1,400   3,491   3,487   114    10     0    7,082    6,643   11,459 17,459  23,050  34.9%   31.7%  24.8%
03/20/10 15,796    220     254      764    2,396   2,457  3,336  19,430  1,400   3,491   3,483   121     6     0    7,088    6,900   10,942 16,068  22,445  35.9%   34.6%  27.1%
03/21/10 15,601    220     244      764    2,378   2,446  3,297  19,207  1,450   3,497   3,488   122     0     0    7,108    6,979   10,649 14,525  21,883  36.4%   35.7%  29.0%
03/22/10 15,156    220     237     768     2,523  2,493  3,277  18,904   1,500   3,498   3,490   107    0      0    7,095   6,982   10,309  13,172 21,357   37.0%   36.4%  30.4%
03/23/10 14,694    220     230     734     2,857  2,551  3,260  18,735   1,500   3,999   2,880   107    0      0    6,986   6,951   10,249  11,941 20,874   36.7%   36.7%  31.4%
03/24/10 14,277    220     223     753     2,881  2,588  3,236  18,354   1,550   3,997   2,717   107    26     0    6,796   6,860   10,008  10,827 20,421   36.4%   36.7%  32.0%
03/25/10 13,627    220     218     744     2,685  2,589  3,203  17,494   1,550   3,991   2,798   103    49     0    6,843   6,794    9,101  10,388 19,969   38.5%   37.2%  32.5%
03/26/10 13,441    220     218     741     2,406  2,570  3,167  17,026   1,600   3,994   2,795   100    0      0    6,888   6,764    8,538  9,971  19,529   39.9%   38.2%  33.2%
03/27/10 13,341    220     215     713     2,258  2,544  3,131  16,747   1,600   3,654   2,795   95     49     0    6,496   6,676    8,651  9,644  19,126   38.2%   38.9%  33.5%
03/28/10 13,274    220     207     678     2,195  2,493  3,096  16,574   1,650   3,983   2,782   101    0      0    6,867   6,668    8,057  9,273  18,731   40.8%   39.6%  34.4%
03/29/10 13,290    220     201     681     2,172  2,393  3,064  16,564   1,650   3,463   2,795   102    67     9    6,302   6,491    8,612  9,031  18,382   37.4%   38.8%  34.1%
03/30/10 12,663    220     199     670     2,151  2,280  3,031  15,903   1,650   3,494   2,805   100    75     0    6,324   6,441    7,929  8,699  18,033   39.1%   39.1%  34.7%
03/31/10 12,214    220     206     708     2,090  2,183  2,998  15,438   1,244   3,998   1,983   94     34     0    6,041   6,179    8,154  8,434  17,715   38.5%   38.3%  34.2%

  Total  626,955   6,940  10,332   29,563  94,671 96,674 113,684768,461  (1,620)113,267 103,034 4,742    395   277 220,924  216,925 549,157 609,516761,184   928.1% 908.3% 830.0%
Average   20,224     224     333      954   3,054  3,119  3,667  24,789     (52)  3,654   3,324   153     13     9   7,127    6,998  17,715 19,662  24,554    29.9%  29.3%  26.8%