01/25/08
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                December 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     (%)     (%)    (%)
12/01/07  9,866    208     102      243    1,409   1,403  1,364  11,828  2,000   2,479   3,707   161     0     67   6,415    6,369   3,413   3,581  3,413   52.3%   52.8%  50.4%
12/02/07 10,100    208     108      248    1,364   1,393  1,361  12,028  2,000   1,979   3,722   161     0     73   5,935    6,032   4,093   3,646  3,753   47.4%   50.4%  48.0%
12/03/07 10,200    208     111     250     1,358  1,385  1,360  12,127   2,000   2,386   3,713   161    73    36    6,224   5,996    3,903  3,697   3,803   49.7%   49.8%  47.8%
12/04/07 10,038    208     114     252     1,358  1,377  1,358  11,970   1,993   2,994   3,710   159    0     49    6,912   6,168    3,065  3,604   3,618   56.0%   51.0%  49.6%
12/05/07 9,976     208     123     255     1,350  1,370  1,355  11,912   1,872   2,412   3,714   162    8     27    6,307   6,310    3,733  3,610   3,641   51.4%   52.3%  51.1%
12/06/07 9,980     208     138     256     1,346  1,364  1,356  11,928   1,815   2,989   3,727   126    8     57    6,890   6,515    3,223  3,578   3,572   56.2%   54.5%  53.2%
12/07/07 11,223    208     135     275     1,360  1,370  1,370  13,201   (417)   5,487   3,733   164    3     53    9,435   7,354    4,184  3,659   3,659   69.8%   59.5%  59.8%
12/08/07 14,488    208     145     343     1,457  1,401  1,396  16,641  (3,612)  5,986   3,708   160    0     53    9,907   8,543   10,347  4,650   4,495   58.3%   61.3%  68.0%
12/09/07 14,816    208     146     371     1,577  1,423  1,409  17,118  (3,555)  6,342   3,721   160    0     53   10,276   9,659   10,397  5,550   5,151   58.8%   61.7%  74.9%
12/10/07 14,450    208     138     345     1,511  1,440  1,416  16,652  (3,334)  4,494   3,968   144    6     53    8,653   9,406   11,333  6,612   5,769   50.8%   56.0%  71.2%
12/11/07 13,960    208     130     309     1,479  1,458  1,421  16,086  (3,277)  4,491   4,316   91     2     42    8,937   9,110   10,426  7,663   6,192   54.7%   54.8%  67.7%
12/12/07 13,000    208     127     295     1,476  1,478  1,427  15,106   (995)   4,476   4,236   57     2     46    8,813   8,660    7,288  8,171   6,284   57.7%   54.3%  63.5%
12/13/07 12,212    208     127     289     1,483  1,495  1,431  14,319   2,200   4,475   4,252   57     3     51    8,832   8,749    3,287  8,180   6,053   60.9%   57.7%  63.5%
12/14/07 11,478    208     127     284     1,481  1,496  1,433  13,578   2,200   4,476   4,231   81     3     47    8,833   8,715    2,545  7,946   5,803   64.1%   60.8%  62.7%
12/15/07 11,194    208     127     283     1,468  1,479  1,435  13,280   2,200   3,128   3,761   96     0     38    7,023   8,108    4,057  7,048   5,686   51.9%   59.1%  57.9%
12/16/07 10,611    208     127     282     1,453  1,468  1,435  12,681   2,200   2,360   3,553   96     0     43    6,053   7,170    4,428  6,195   5,608   46.6%   54.4%  51.1%
12/17/07 10,275    208     127     284     1,435  1,459  1,434  12,329   2,200   2,995   3,687   96     6     46    6,819   6,495    3,310  5,049   5,472   54.2%   50.9%  46.2%
12/18/07 10,675    208     129     298     1,419  1,454  1,434  12,729   1,465   3,495   3,727   101    2     46    7,368   6,606    3,896  4,116   5,385   56.7%   52.5%  46.8%
12/19/07 10,660    208     149     327     1,441  1,458  1,438  12,785  (1,273)  3,490   3,746   108    2     48    7,390   7,047    6,668  4,027   5,452   56.6%   55.8%  49.7%
12/20/07 11,840    208     164     361     1,512  1,461  1,441  14,085  (1,501)  3,487   3,734   104    2     46    7,369   7,226    8,217  4,732   5,591   51.3%   54.7%  50.4%
12/21/07 12,653    208     175     452     1,496  1,466  1,444  14,984  (4,062)  3,497   3,769   101    3     44    7,409   7,241   11,637  6,030   5,879   48.5%   51.9%  50.1%
12/22/07 15,095    208     207     459     1,507  1,469  1,446  17,476  (4,062)  3,490   3,282   96     0     45    6,913   7,086   14,625  7,540   6,276   38.7%   45.7%  48.8%
12/23/07 16,525    208     167     386     1,476  1,473  1,446  18,762  (3,427)  2,493   2,634   83     0     44    5,254   6,389   16,935  9,327   6,740   27.3%   37.4%  43.7%
12/24/07 16,556    208     152     355     1,460  1,476  1,446  18,731   (689)   2,490   2,657   56     5     45    5,244   5,682   14,176  10,879  7,049   27.5%   31.0%  38.4%
12/25/07 14,916    208     144     348     1,438  1,473  1,445  17,054   (510)   2,492   2,632   57     0     44    5,224   5,133   12,340  12,085  7,261   30.0%   28.2%  34.6%
12/26/07 13,257    208     139     342     1,424  1,458  1,444  15,370   2,000   2,492   2,623   57     4     45    5,213   5,128    8,157  12,298  7,295   33.3%   30.1%  34.5%
12/27/07 12,393    208     138     338     1,405  1,444  1,442  14,482   1,950   4,534   2,623   57     3     50    7,261   5,798    5,271  11,877  7,220   49.4%   37.1%  39.0%
12/28/07 11,676    208     138     336     1,398  1,424  1,439  13,756   1,950   1,393   1,485   50     2     44    2,972   5,050    8,834  11,477  7,278   20.9%   34.7%  33.9%
12/29/07 11,369    208     138     331     1,366  1,408  1,437  13,412   1,672   1,395   1,025   44     3     38    2,499   4,152    9,241  10,708  7,346   18.0%   29.9%  27.8%
12/30/07 11,123    208     144     331     1,368  1,396  1,435  13,174   1,394   1,387   1,035   40     0     45    2,507   2,573    9,273  9,613   7,410   18.4%   19.1%  17.2%
 12/31/0 11,157    208     145     341     1,371  1,383  1,432  13,222   1,344   1,394   1,024   43     3     45    2,504   2,420    9,374  8,927   7,473   18.3%   18.2%  16.1%

  Total  377,762   6,448   4,281    9,869  44,446 44,502 43,930 442,806   3,737 101,480 101,453 3,131    138 1,466 207,392  206,889 231,676 216,075175,629  1435.6%1467.6%1517.4%
Average   12,186     208     138      318   1,434  1,436  1,417  14,284     121   3,274   3,273   101      4    47   6,690    6,674   7,473  6,970            46.3%  47.3%  48.9%