07/22/10
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                June 2010
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     (%)     (%)    (%)
06/01/10 23,537    230     612     1,940   4,068   4,373  3,989  30,387  1,681   3,722   2,835   181    232    78   6,585    6,396   22,121 18,861  22,121  20.8%   21.4%  26.2%
06/02/10 24,634    229     610     1,922   3,989   4,249  3,931  31,384  3,100   3,995   2,834   247    67     80   7,089    6,571   21,194 19,417  21,658  21.5%   21.2%  26.2%
06/03/10 24,860    227     616     2,244   3,873   4,120  3,894  31,820  3,150   3,993   3,138   274    92     78   7,392    6,840   21,278 20,270  21,531  22.1%   21.5%  26.5%
06/04/10 24,364    226     616     2,436   3,819   4,003  3,860  31,461  3,200   3,292   3,509   249    69     89   7,071    6,921   21,190 20,902  21,446  21.4%   21.7%  26.3%
06/05/10 23,211    224     616     2,459   3,760   3,964  3,904  30,270  3,250   3,673   3,503   239    90     97   7,423    7,037   19,597 21,042  21,076  23.4%   22.3%  26.1%
06/06/10 24,050    223     624     2,478   4,079   4,036  4,031  31,454  3,300   3,990   3,515   254    76     96   7,780    7,161   20,374 21,012  20,959  23.6%   22.8%  25.9%
06/07/10 25,658    221     609     2,523   4,664   4,066  4,066  33,675  3,350   3,862   3,506   255    76     87   7,634    7,350   22,691 21,206  21,206  21.7%   22.9%  25.8%
06/08/10 28,030    220     617     2,487   4,280   4,053  4,045  35,634  3,400   3,992   3,516   238    86     94   7,755    7,461   24,479 21,543  21,615  20.8%   22.0%  25.4%
06/09/10 30,380    220     658     2,289   3,899   4,030  4,008  37,446  3,450   3,975   3,519   235    69     95   7,755    7,457   26,241 22,264  22,129  19.8%   20.7%  24.4%
06/10/10 30,340    220     744     2,074   3,712   4,002  3,970  37,090  3,500   3,483   3,525   277    72     97   7,309    7,337   26,281 22,979  22,544  18.7%   19.8%  23.2%
06/11/10 29,397    220     773     1,876   3,623   4,084  4,003  35,889  3,550   3,496   3,045   225    79     89   6,776    7,014   25,563 23,604  22,819  18.0%   18.9%  21.6%
06/12/10 27,766    220     782     1,673   4,331   4,280  4,123  34,772  3,600   3,494   2,838   240    50    102   6,625    6,627   24,547 24,311  22,963  18.1%   18.3%  20.0%
06/13/10 26,178    220     755     1,497   5,452   4,421  4,241  34,102  3,650   3,489   2,838   236    132   119   6,552    6,400   23,900 24,815  23,035  18.2%   18.1%  19.0%
06/14/10 24,751    220     725     1,346   5,652   4,649  4,358  32,694  3,700   3,497   2,842   255    92    123   6,626    6,333   22,368 24,768  22,987  19.1%   18.4%  18.7%
06/15/10 22,953    220     721     1,313   5,875   4,965  4,474  31,082  3,750   2,997   2,839   255    123   104   6,072    6,168   21,260 24,309  22,872  18.4%   18.5%  18.1%
06/16/10 21,525    220     787     1,282   6,109   5,193  4,526  29,923  3,800   1,978   2,837   256    110   107   5,068    5,664   21,055 23,568  22,759  15.7%   17.8%  16.6%
06/17/10 20,359    220     799     1,262   5,306   5,348  4,537  27,946  3,850   3,976   2,823   269    94    108   7,082    5,817   17,014 22,244  22,421  24.0%   19.3%  17.2%
06/18/10 18,463    220     797     1,234   4,711   5,298  4,507  25,425  3,900   3,971   2,821   252    96    105   7,053    6,135   14,472 20,660  21,979  26.3%   21.7%  18.5%
06/19/10 17,015    220     803     1,188   3,984   5,009  4,450  23,210  3,950   3,988   2,829   232    198   102   6,953    6,803   12,307 18,911  21,470  28.5%   26.1%  20.7%
06/20/10 16,505    220     788     1,171   3,428   4,661  4,388  22,112  4,000   3,996   3,306   230    98    104   7,538    6,971   10,574 17,007  20,925  32.6%   29.0%  21.7%
06/21/10 15,949    220     788     1,141   3,216   4,256  4,324  21,314  4,050   3,499   3,518   246    99    103   7,267    7,045   9,997  15,240  20,405  32.5%   31.1%  22.6%
06/22/10 15,729    220     796     1,078   3,040   3,783  4,255  20,863  4,100   3,494   3,529   243    104    99   7,260    7,114   9,503  13,560  19,909  33.2%   32.7%  23.7%
06/23/10 16,054    220     783     1,019   2,799   3,410  4,187  20,875  4,100   2,991   3,530   261    101    97   6,778    6,853   9,997  11,981  19,478  30.8%   32.1%  23.8%
06/24/10 15,903    220     778      971    2,693   3,117  4,123  20,565  4,150   1,997   3,408   272    67     88   5,699    6,316   10,716 11,081  19,113  26.0%   30.0%  22.9%
06/25/10 15,555    220     785    1,000    2,661  2,914  4,061  20,221   4,200   2,499   2,831   297    76    90    5,642   5,752   10,379  10,496 18,764   26.0%   27.6%  21.7%
06/26/10 15,458    220     793    1,012    2,563  2,794  4,004  20,046   4,200   2,493   2,612   300   101    99    5,403   5,280   10,443  10,230 18,444   25.0%   25.6%  20.8%
06/27/10 15,277    220     793     995     2,585  2,749  3,963  19,870   4,250   2,496   2,610   296    76    93    5,418   5,180   10,202  10,177 18,139   25.3%   25.4%  21.2%
06/28/10 15,130    220     774     971     2,904  2,765  3,934  19,999   4,250   3,493   2,644   257    68    115   6,441   5,449    9,308  10,078 17,823   30.3%   26.9%  23.2%
06/29/10 14,619    220     763     974     3,147  2,800  3,903  19,723   4,300   3,490   2,665   213    86    96    6,378   5,799    9,045  10,013 17,521   30.8%   28.8%  25.7%
06/30/10 14,438    220     752     917     3,045  2,932  3,894  19,372   4,300   3,991   3,267   218    98    115   7,494   6,517    7,578  9,667  17,189   37.0%   32.7%  29.9%


  Total  638,088   6,640  21,857   46,772 117,267 120,328123,954830,624 111,031 103,303  93,035 7,502  2,874 2,952 203,918  195,766 515,675 546,215627,303   729.5% 715.4% 683.7%
Average   21,270     221     729    1,559   3,909  4,011  4,132  27,687   3,701   3,443   3,101   250     96    98   6,797    6,526  17,189 18,207  20,910    24.3%  23.8%  22.8%