01/23/09
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                December 2008
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     (%)     (%)    (%)
12/01/08  8,026    210      0       227    1,200   1,211  1,195  9,663    631    1,490   1,018    45     0     65   2,618    2,513   6,415   5,773  6,415   26.0%   25.7%  25.5%
12/02/08  7,800    213      0       227    1,195   1,206  1,188  9,435   2,000   1,494   1,002    46     0     76   2,619    2,507   4,816   5,921  5,615   26.5%   26.0%  25.8%
12/03/08  8,255    216      0       227    1,181   1,200  1,184  9,879   2,000   1,491   1,623    49     0     67   3,230    2,706   4,649   5,928  5,293   31.5%   28.0%  28.1%
12/04/08  8,298    219      0       225    1,177   1,190  1,182  9,919   2,050   1,495   1,884    51     0     48   3,479    2,997   4,390   5,682  5,067   34.1%   30.8%  31.2%
12/05/08  7,750    221      10      224    1,175   1,182  1,177  9,380   2,100   1,491   1,872    57     0     43   3,464    3,286   3,816   5,344  4,817   35.9%   33.8%  34.5%
12/06/08  8,177    224      10      221    1,158   1,177  1,173  9,790   2,100    997    1,857    43     0     43   2,941    3,199   4,750   5,061  4,806   29.2%   33.0%  33.6%
12/07/08  8,027    227     12      220     1,152  1,171  1,171   9,638   2,150    988    1,848   42     0     47    2,925   3,018    4,563  4,771   4,771   29.4%   31.4%  31.6%
12/08/08  7,466    230      2      219     1,157  1,164  1,168   9,074   2,150    998    1,833   41     0     45    2,916   2,840    4,008  4,427   4,676   31.2%   29.9%  29.8%
12/09/08  7,341    230      1      220     1,147  1,158  1,165   8,939   1,922    998    1,840   44     0     47    2,930   2,835    4,088  4,323   4,610   31.7%   30.8%  29.7%
12/10/08  7,346    230      7      223     1,139  1,152  1,162   8,945   1,972    993    1,867   70     0     50    2,980   2,843    3,994  4,230   4,549   32.0%   31.6%  29.9%
12/11/08  7,251    230      1      220     1,136  1,146  1,159   8,838   1,972    995    1,893   57     0     44    2,989   2,862    3,877  4,156   4,488   32.7%   32.1%  30.2%
12/12/08  7,131    230      5      218     1,136  1,144  1,158   8,720   1,972    995    1,893   55     0     46    2,990   2,879    3,759  4,148   4,427   33.1%   32.6%  30.6%
12/13/08  6,878    230      4      221     1,140  1,141  1,156   8,473   1,972   1,199   1,276   55     0     46    2,576   2,750    3,925  4,030   4,388   29.2%   31.7%  29.5%
12/14/08  7,393    230     15      222     1,130  1,136  1,153   8,990   2,200   1,191   1,017   55     0     39    2,302   2,524    4,488  4,020   4,395   24.6%   28.9%  27.2%
12/15/08  7,580    230     20      230     1,123  1,135  1,152   9,183    146    1,191   1,015   55     0     44    2,305   2,296    6,732  4,409   4,551   24.0%   25.9%  24.9%
12/16/08  7,743    230     23      234     1,141  1,137  1,153   9,371   (767)   1,192   1,016   55     0     48    2,312   2,208    7,826  4,943   4,756   23.6%   24.0%  23.9%
12/17/08  8,811    230     26      235     1,153  1,141  1,153  10,455  (1,908)  1,185   1,018   55     0     48    2,307   2,206   10,056  5,809   5,068   21.1%   22.8%  23.8%
12/18/08  8,273    230     23      232     1,163  1,146  1,154   9,921  (1,958)  1,191   1,014   55     0     49    2,310   2,206    9,569  6,622   5,318   22.2%   22.2%  23.8%
12/19/08  8,689    230     20      231     1,172  1,152  1,156  10,342  (1,958)  1,192   1,013   59     0     47    2,312   2,205    9,988  7,512   5,564   21.3%   21.5%  23.6%
12/20/08  8,564    230     23      229     1,185  1,164  1,158  10,231   (589)   1,490   1,017   61     0     41    2,609   2,306    8,211  8,124   5,696   24.5%   22.7%  24.6%
12/21/08  8,591    230     23      228     1,209  1,179  1,162  10,281    274    1,493   1,010   64     0     43    2,609   2,405    7,398  8,540   5,777   24.3%   23.4%  25.6%
12/22/08  8,187    230     24      246     1,230  1,196  1,166   9,917   (182)   1,493   1,027   56     0     43    2,619   2,510    7,480  8,647   5,854   25.4%   24.7%  26.5%
12/23/08  8,496    230     25      275     1,263  1,220  1,173  10,289   (689)   1,487   1,019   56     0     43    2,605   2,510    8,372  8,725   5,964   24.4%   24.7%  26.2%
12/24/08  9,312    230     28      327     1,315  1,238  1,178  11,212   (689)   1,489   1,018   56     0     47    2,611   2,511    9,290  8,615   6,102   22.4%   24.0%  25.8%
12/25/08  9,182    230     31      306     1,290  1,253  1,182  11,039  (1,195)  1,491   1,029   54     0     44    2,619   2,511    9,615  8,622   6,243   22.8%   23.2%  25.4%
12/26/08  9,470    230     58      317     1,280  1,272  1,187  11,355  (3,477)  1,241   1,023   54     0     41    2,360   2,431   12,472  8,977   6,483   19.9%   21.7%  24.1%
12/27/08 11,704    230     76      418     1,317  1,280  1,190  13,745  (1,930)  1,466   1,018   54     0     38    2,576   2,423   13,098  9,675   6,728   18.1%   20.1%  23.2%
12/28/08 13,503    230     45      310     1,268  1,281  1,192  15,356  (1,473)  1,492   1,017   54     0     42    2,607   2,419   14,223  10,650  6,995   16.3%   17.9%  22.2%
12/29/08 13,870    230     32      274     1,231  1,273  1,192  15,637  (1,523)  1,984   1,019   54     0     45    3,103   2,666   14,057  11,590  7,239   19.2%   17.9%  23.4%
12/30/08 11,907    230     30      259     1,212  1,256  1,192  13,638   (432)   2,006   1,718   54     0     46    3,824   3,079   10,246  11,857  7,339   27.3%   20.7%  26.4%
12/31/08 10,875    230     26      251     1,195  1,241  1,192  12,577   1,800   2,520   2,308   59     0     52    4,939   3,852    5,838  11,364  7,291   38.4%   27.6%  32.6%

  Total  271,896   7,050     600    7,716  36,970 36,941 36,323 324,232  10,641  42,418  42,024 1,671      0 1,470  87,583   82,498 226,008 212,498171,284   822.2% 811.3% 843.3%
Average    8,771     227      19      249   1,193  1,192  1,172  10,459     343   1,368   1,356    54      0    47   2,825    2,661   7,291  6,855            26.5%  26.2%  27.2%