09/27/07
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                April 2007
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     (%)     (%)    (%)
04/01/07 15,193    266     431      782    1,880   1,999  1,985  18,552  1,750   3,491   3,347    8      0     0    6,846    6,119   9,956  10,365  9,956   36.9%   33.6%  34.2%
04/02/07 15,370    267     463      796    1,985   1,966  1,952  18,881  1,750   3,090   3,590    14    126    11   6,579    6,443   10,552 10,528  10,254  34.7%   34.4%  35.9%
04/03/07 15,608    267     480     774     1,918  1,984  2,025  19,047   1,750   2,586   3,589   11    151    32    6,067   6,564   11,231  10,723 10,579   31.6%   34.4%  36.4%
04/04/07 15,717    268     480     751     2,173  2,058  2,157  19,389   1,800   3,490   3,581    2     65    38    7,045   6,642   10,544  10,813 10,571   36.1%   34.2%  36.5%
04/05/07 16,046    268     489     771     2,552  2,115  2,204  20,126   1,800   3,292   3,573    8     81    36    6,827   6,703   11,499  10,947 10,756   33.7%   33.8%  36.7%
04/06/07 15,664    269     526     816     2,392  2,082  2,116  19,667   1,800   2,495   3,572    8     85    38    6,028   6,667   11,839  11,063 10,937   30.4%   33.4%  36.4%
04/07/07 15,051    269     545     733     1,673  2,057  2,057  18,271   1,800   2,496   3,562    4     50    35    6,046   6,330   10,425  10,864 10,864   32.9%   32.3%  34.4%
04/08/07 14,691    270     534     670     1,703  2,026  2,021  17,868   1,850   2,495   3,604    9     50    32    6,090   6,075    9,928  10,860 10,747   33.9%   32.3%  33.0%
04/09/07 14,942    270     526     685     1,773  2,018  2,003  18,196   1,850   2,002   3,600    9     38    31    5,603   5,920   10,743  10,887 10,746   30.6%   32.4%  32.1%
04/10/07 15,182    270     535     691     1,862  1,944  1,968  18,540   1,850   2,011   3,584    9     63    38    5,579   5,765   11,111  10,870 10,783   29.8%   31.4%  31.0%
04/11/07 15,134    270     552     680     1,650  1,810  1,936  18,286   1,850   2,184   3,577    8     70    51    5,750   5,652   10,686  10,890 10,774   31.1%   30.5%  30.2%
04/12/07 14,422    270     536     685     1,620  1,714  1,918  17,533   (204)   2,390   3,593    9     71    54    5,974   5,779   11,763  10,928 10,856   33.7%   31.5%  30.8%
04/13/07 14,940    270     529     668     1,718  1,712  1,898  18,125   (154)   2,625   3,555    9     91    56    6,154   5,974   12,125  10,969 10,954   33.6%   32.8%  31.7%
04/14/07 14,718    270     540     639     1,658  1,714  1,885  17,825   (154)   2,498   3,542    9     50    42    6,040   6,067   11,939  11,185 11,024   33.6%   33.6%  32.3%
04/15/07 14,733    270     530     640     1,717  1,731  1,886  17,890  (1,980)  2,557   3,561    9     50    42    6,118   6,113   13,752  11,731 11,206   33.9%   33.7%  32.6%
04/16/07 15,500    270     509     646     1,895  1,813  1,920  18,820  (1,980)  2,996   3,556    9     94    45    6,512   6,237   14,288  12,238 11,399   34.3%   34.0%  33.3%
04/17/07 14,985    270     493     611     2,431  1,901  1,941  18,790    74     2,797   3,519   10     39    54    6,340   6,329   12,376  12,418 11,456   33.4%   33.9%  33.8%
04/18/07 14,280    270     441     589     2,270  1,981  1,954  17,850    74     2,497   3,573    8     66    48    6,060   6,313   11,715  12,565 11,471   33.6%   33.8%  33.9%
04/19/07 14,736    270     424     590     2,178  2,037  1,962  18,198    74     2,596   3,564   10     56    44    6,157   6,182   11,966  12,594 11,497   33.5%   33.5%  33.5%
04/20/07 13,658    270     409     582     2,108  2,116  1,974  17,027   1,900   2,690   3,016    8    108    53    5,660   5,979    9,467  12,215 11,395   32.9%   33.4%  32.6%
04/21/07 12,952    270     395     561     2,212  2,301  2,024  16,390   1,900   2,988   2,797    8     50    102   5,845   5,884    8,645  11,744 11,264   35.0%   33.8%  32.4%
04/22/07 12,343    270     396     556     3,013  2,543  2,095  16,578   1,215    690    1,538    9     50    71    2,258   4,573   13,105  11,652 11,348   13.1%   27.0%  25.2%
04/23/07 12,469    270     401     837     3,587  2,733  2,168  17,564   (382)    695    1,006    6     34    77    1,749   3,238   16,197  11,925 11,559    9.5%   19.0%  17.9%
04/24/07 13,102    270     360     954     3,765  2,939  2,232  18,451   (332)    492    1,002    9     46    81    1,537   1,808   17,246  12,620 11,796    7.8%   10.1%  9.9%
04/25/07 13,675    270     341     721     3,707  3,155  2,290  18,714   (332)   1,038    464     9     55    78    1,534   1,565   17,512  13,448 12,024    7.7%   8.3%   8.5%
04/26/07 14,392    270     319     688     3,695  3,383  2,344  19,364   (332)    684     852     8     80    81    1,544   1,510   18,152  14,332 12,260    7.5%   7.7%   8.1%
04/27/07 13,643    270     333     683     3,701  3,586  2,392  18,630    352     694     846     9     73    85    1,561   1,526   16,716  15,368 12,425    7.9%   7.7%   8.1%
04/28/07 12,679    270     356     677     3,631  3,657  2,432  17,613   2,000    692     847     8     50    82    1,578   1,538   14,035  16,138 12,483    8.5%   7.9%   8.2%
04/29/07 11,602    270     362     672     3,512  3,657  2,472  16,418   2,000    689     851    11     50    83    1,583   1,540   12,835  16,099 12,495    9.1%   8.4%   8.3%
04/30/07 10,344    270     369     663     3,585  3,644  2,512  15,231   2,000    699     851    10    124    92    1,528   1,543   11,703  15,457 12,468    9.4%   8.9%   8.3%


  Total  427,771   8,084  13,604   20,811  73,564 70,376 62,723 543,834  25,591  62,639  81,709   251  2,018 1,611 144,191  148,578 374,052 364,436338,347   779.8% 801.8% 806.2%
Average   14,259     269     453      694   2,452  2,346  2,091  18,128     853   2,088   2,724     8     67    54   4,806    4,953  12,468 12,148            26.0%  26.7%  26.9%