05/14/08
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                April 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     (%)     (%)    (%)
04/01/08  9,739    210     435      724    2,493   2,427  2,376  13,601  1,065   1,996    974     2     23     7    2,956    2,292   9,579   8,917  9,579   21.7%   17.0%  16.4%
04/02/08  9,110    210     486      671    2,376   2,409  2,293  12,853  1,065   2,489   1,008    11    53     6    3,460    2,801   8,328   9,021  8,953   26.8%   20.8%  20.1%
04/03/08 9,532     210     549     659     2,210  2,376  2,247  13,160   1,522   2,487   1,384    3     59    14    3,829   3,446    7,810  8,994   8,572   29.0%   25.8%  25.0%
04/04/08 9,422     210     587     658     2,155  2,320  2,198  13,032   1,800   2,744   1,835    5     44    37    4,577   3,982    6,655  8,773   8,093   34.8%   30.2%  29.2%
04/05/08 8,928     210     334     654     2,049  2,258  2,162  12,175   1,800   2,459   1,847    6     65    46    4,293   4,252    6,082  8,391   7,691   34.8%   32.8%  31.6%
04/06/08 8,707     210     381     669     2,022  2,187  2,136  11,989   1,800   1,630   1,837    4     0     56    3,527   4,117    6,662  7,910   7,519   28.9%   32.9%  31.0%
04/07/08 8,448     210     542     673     2,003  2,118  2,118  11,876   1,800   2,281   1,846    8     0     54    4,189   3,966    5,887  7,286   7,286   34.7%   32.8%  30.4%
04/08/08 9,028     210     656     678     2,010  2,059  2,099  12,582   1,850   1,593   1,835    2     90    55    3,396   3,674    7,336  6,966   7,292   26.5%   30.0%  28.3%
04/09/08 8,913     210     669     674     1,965  2,011  2,074  12,431   1,850   1,490   1,844    9     58    54    3,339   3,630    7,242  6,811   7,287   26.3%   29.1%  27.9%
04/10/08 9,787     210     665     657     1,875  1,996  2,071  13,194   1,850   1,244   1,131    9     65    62    2,381   3,046    8,963  6,975   7,454   17.5%   23.4%  23.2%
04/11/08 10,161    210     649     642     2,047  1,966  2,050  13,709   1,850    998     841     5     68    68    1,844   2,516   10,015  7,455   7,687   12.9%   18.7%  19.1%
04/12/08 12,024    210     678     611     1,841  1,937  2,031  15,364   1,850    487     839     4     75    77    1,332   1,847   12,182  8,327   8,062    8.1%   12.6%  13.6%
04/13/08 12,515    210     682     627     1,820  1,930  2,025  15,854   1,900    496     840     6     73    74    1,343   1,500   12,611  9,177   8,412    8.0%   9.5%   10.8%
04/14/08 12,640    210     729     666     1,955  1,936  2,027  16,200   1,900    997     840     5     93    82    1,831   1,500   12,469  10,117  8,702   10.8%   9.0%   10.6%
04/15/08 11,885    210     750     706     2,047  1,943  2,026  15,598   1,900    984     839     7     75    84    1,839   1,665   11,859  10,763  8,912   11.2%   10.0%  11.7%
04/16/08 12,958    210     772     731     2,013  1,961  2,025  16,684   1,900   1,472    837     5     50    87    2,351   1,990   12,433  11,505  9,132   13.5%   11.9%  13.8%
04/17/08 12,831    210     769     769     2,007  1,975  2,032  16,586   1,900   1,487    845     4     87    108   2,356   2,155   12,330  11,986  9,320   13.5%   12.8%  14.8%
04/18/08 12,428    210     741     732     2,144  2,026  2,041  16,255   1,900   1,499    820     6     47    110   2,387   2,320   11,968  12,265  9,467   14.0%   13.7%  15.8%
04/19/08 11,849    210     720     667     2,197  2,078  2,048  15,643   1,900    998     841     5     0     84    1,928   2,163   11,815  12,212  9,591   11.8%   13.1%  14.5%
04/20/08 11,316    210     711     685     2,184  2,105  2,053  15,106   1,900    984     838     4     50    77    1,852   1,994   11,354  12,033  9,679   11.7%   12.5%  13.3%
04/21/08 11,988    210     711     699     2,141  2,185  2,080  15,749   1,900    996     839     2    187    85    1,734   1,832   12,115  11,982  9,795   10.5%   11.3%  11.6%
04/22/08 11,477    210     675     688     2,612  2,301  2,113  15,662   1,900    690     839     0     71    97    1,555   1,729   12,207  12,032  9,905    9.3%   10.5%  10.6%
04/23/08 10,765    210     669     640     2,822  2,435  2,149  15,106   1,900    687     838     0     75    84    1,535   1,630   11,671  11,923  9,981    9.6%   9.8%   9.8%
04/24/08 9,862     210     642     611     2,943  2,569  2,188  14,268   1,494    684     829     0     94    82    1,501   1,522   11,274  11,772 10,035    9.9%   9.6%   9.3%
04/25/08 9,808     210     640     589     3,082  2,713  2,229  14,329   1,494    686     837     7     70    83    1,542   1,520   11,293  11,675 10,086   10.1%   9.9%   9.2%
04/26/08 9,153     210     602     562     3,207  2,852  2,265  13,734   1,494    691     839     5     50    79    1,563   1,522   10,677  11,513 10,108   10.8%   10.3%  9.4%
04/27/08 8,707     210     633     551     3,158  3,004  2,299  13,259   1,494    695     840     4     0     81    1,620   1,529   10,146  11,340 10,110   11.6%   10.8%  9.7%
04/28/08 8,188     210     635     574     3,201  3,080  2,330  12,808   1,544    693     834     5     54    85    1,562   1,531    9,702  10,996 10,095   11.5%   11.3%  9.9%
04/29/08 7,659     210     645     650     3,145  3,105  2,353  12,309   2,000    696     841     6     47    93    1,589   1,533    8,720  10,498 10,048   12.1%   11.7%  10.1%
04/30/08 7,238     210     686     693     2,996  3,112  2,374  11,823   2,000    692     832     5     65    76    1,540   1,530    8,283  10,013  9,989   12.3%   12.0%  10.2%


  Total  307,066   6,300  19,043   19,810  70,720 69,373 64,512 422,939  52,520  38,021  32,293   136  1,787 2,088  70,751   70,732 299,667 299,625268,844   504.4% 505.8% 501.0%
Average   10,236     210     635      660   2,357  2,312  2,150  14,098   1,751   1,267   1,076     5     60    70   2,358    2,358   9,989  9,988            16.8%  16.9%  16.7%