01/23/07
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                December 2006
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     (%)     (%)    (%)
12/01/06 13,400    207      0       516    2,243   2,245  2,200  16,366  1,087   6,679   3,540    84     0     70   10,372   9,602   4,907   4,981  4,907   62.4%   58.3%  59.6%
12/02/06 12,639    213      0      490     2,200  2,234  2,190  15,542   2,000   6,674   3,564   94     0     70   10,401   9,967    3,141  4,796   4,024   65.9%   61.7%  62.2%
12/03/06 12,216    220      0      503     2,179  2,218  2,177  15,118   2,000   6,668   3,522   82     0     67   10,338   10,215   2,780  4,655   3,609   67.4%   65.2%  64.1%
12/04/06 12,053    226      0      501     2,153  2,199  2,167  14,933   2,050   5,586   3,566   78     0     75    9,305   9,859    3,578  4,483   3,602   61.3%   64.9%  62.2%
12/05/06 11,644    232      0      518     2,136  2,182  2,158  14,530   2,100   5,599   3,589   69     0     72    9,328   9,509    3,102  4,231   3,502   63.2%   64.0%  60.4%
12/06/06 11,658    238      0      522     2,120  2,161  2,147  14,538   2,100   4,808   3,555   42     0     69    8,473   8,901    3,965  3,917   3,579   57.5%   60.7%  56.8%
12/07/06 11,774    245      0      474     2,095  2,137  2,137  14,588   2,150   4,394   4,177   51     0     74    8,696   8,708    3,741  3,602   3,602   58.8%   59.8%  55.9%
12/08/06 12,017    251      0      437     2,073  2,114  2,125  14,778   2,150   4,190   4,386   44     0     75    8,695   8,503    3,933  3,463   3,643   58.0%   58.1%  54.8%
12/09/06 11,661    251      0      429     2,040  2,091  2,113  14,381   1,237   4,990   4,226   29     0     73    9,318   8,788    3,826  3,561   3,664   64.1%   60.3%  57.0%
12/10/06 12,861    251      0      453     2,020  2,081  2,110  15,585  (2,136)  5,691   4,247   40     0     68   10,045   9,243    7,676  4,260   4,065   63.8%   62.0%  60.0%
12/11/06 15,207    251      0      486     2,082  2,077  2,109  18,026  (3,277)  6,672   4,247   37     0     72   11,027   10,024  10,276  5,217   4,630   60.6%   62.7%  64.5%
12/12/06 15,359    251      0      531     2,106  2,080  2,112  18,247  (3,505)  5,395   4,235   37     0     69    9,736   10,162  12,016  6,491   5,245   52.8%   58.8%  64.8%
12/13/06 16,293    251     35      533     2,143  2,107  2,126  19,255  (6,472)  5,899   4,256   34     0     69   10,258   10,234  15,469  8,134   6,032   52.7%   55.3%  64.4%
12/14/06 17,745    251     19      694     2,288  2,132  2,134  20,997  (5,559)  6,449   4,293   27     0     62   10,831   10,175  15,725  9,846   6,724   51.2%   52.2%  62.8%
12/15/06 19,440    251      0      802     2,245  2,180  2,150  22,738  (2,136)  7,190   4,286   31     0     60   11,567   10,791  13,307  11,185  7,163   50.5%   51.4%  64.8%
12/16/06 23,411    251      0      801     2,373  2,239  2,168  26,836  (1,451)  7,196   4,298   33     0     65   11,593   11,238  16,694  13,023  7,759   42.8%   47.8%  64.3%
12/17/06 25,747    251      0      795     2,435  2,289  2,183  29,228  (1,223)  7,400   4,266   32     0     56   11,754   11,546  18,697  14,598  8,402   39.9%   44.0%  62.5%
12/18/06 24,747    251      0      789     2,430  2,333  2,196  28,217   1,694   7,390   4,309   16     0     78   11,793   11,620  14,730  15,234  8,754   41.5%   41.4%  59.8%
12/19/06 22,600    251      0      696     2,418  2,375  2,209  25,965   1,694   7,387   4,303   21     0     72   11,783   11,685  12,489  15,302  8,950   45.0%   42.0%  57.7%
12/20/06 20,100    251      0      646     2,433  2,397  2,221  23,430   1,694   7,386   4,306   34     0     69   11,795   11,694   9,942  14,512  9,000   49.9%   45.2%  56.0%
12/21/06 17,835    251      0      633     2,446  2,426  2,231  21,165   2,100   7,395   4,308   20     0     55   11,778   11,695   7,287  13,307  8,918   55.3%   49.7%  54.8%
12/22/06 16,619    251      0      633     2,445  2,444  2,244  19,948   1,187   7,391   4,322   17     0     63   11,793   11,703   6,968  12,401  8,830   58.7%   54.4%  53.9%
12/23/06 16,588    251     30      631     2,498  2,454  2,255  19,998    909    7,492   4,272   26     0     58   11,848   11,727   7,241  11,050  8,760   58.8%   57.6%  53.0%
12/24/06 16,570    251     13      656     2,509  2,467  2,266  19,999    909    7,405   4,251   29     0     50   11,735   11,711   7,355  9,430   8,702   58.3%   58.6%  52.2%
12/25/06 16,517    251      0      586     2,518  2,482  2,276  19,872    859    7,251   4,256   32     0     55   11,593   11,642   7,420  8,386   8,651   57.9%   58.3%  51.6%
12/26/06 16,180    251      0      560     2,526  2,495  2,286  19,517    859    7,497   4,317   39     0     64   11,916   11,659   6,742  7,565   8,577   60.5%   58.9%  51.5%
12/27/06 15,229    251     10      551     2,522  2,509  2,295  18,563    124    7,489   4,214   42     0     69   11,814   11,674   6,625  7,091   8,505   63.0%   60.4%  51.6%
12/28/06 16,756    251     303     677     2,542  2,528  2,306  20,529    124    6,648   4,195   44     0     59   10,946   11,453   9,459  7,401   8,539   52.8%   58.6%  50.7%
12/29/06 20,349    251     113     805     2,579  2,533  2,313  24,097    74     7,090   4,311   43     0     63   11,507   11,316  12,516  8,194   8,676   47.3%   53.7%  49.9%
12/30/06 27,265    251     49      648     2,537  2,538  2,321  30,750    24     7,362   4,229   41     0     68   11,700   11,278  19,026  9,877   9,021   37.7%   44.9%  49.1%
12/31/06 26,533    251     25      604     2,543  2,544  2,329  29,956    (26)   7,489   4,278   34     0     61   11,862   11,586  18,120  11,415  9,315   39.3%   41.0%  50.4%

  Total  529,013   7,605     597   18,600  71,877 71,288 68,255 627,692   3,338 204,151 128,122 1,281      0 2,047 335,601  329,908 288,753 261,609207,348  1698.9%1711.7%1783.4%
Average   17,065     245      19      600   2,319  2,300  2,202  20,248     108   6,586   4,133    41      0    66  10,826   10,642   9,315  8,439            54.8%  55.2%  57.5%