10/17/02
U.S. Bureau of Reclamation - Central Valley Operations Office
Delta Outflow Computation (values in c.f.s.)

SEPTEMBER 2002
         Estimated numbers are in bold print
                                     DELTA INFLOW                                        DELTA EXPORTS                           OUTFLOW INDEX   Export/Inflow
         Sacto R       Yolo +East Si     S. Joaquin River Total          Clifton         ContraByron        Total  3-day
         @Freepor SRTP  Misc Streams        7-day Monthly Delta           Court   Tracy  Costa Bethan NBA   Delta   Avg    NDOI   7-day  Monthly Daily 3 Day 14 Day
  Date   -prev da-prev -prev -prev d-prev dAverageAverage Inflow   NDCU   (CLT)   (TRA)  (CCC) (BBID)      Exports TRA &  daily    Avg     Avg    (%)   (%)   (%)
09/01/02 14,687   154    0    225   1,110  1,161  1,194  16,176   3,200   6,000   4,256   85    76    100  10,366  10,099 2,610   2,618   2,610  62.9% 62.4% 57.3%
09/02/02 14,511   154    0    239   1,194  1,153  1,211  16,098   3,200   5,799   4,306   81    76    97   10,207  10,211 2,691   2,635   2,650  62.3% 62.7% 58.6%
09/03/02 13,913   154    0    241   1,228  1,150  1,197  15,536   3,150   4,947   4,245   79    107   91    9,254  9,851  3,132   2,713   2,811  58.5% 61.3% 57.1%
09/04/02 13,249   154    0    240   1,169  1,130  1,155  14,812   3,100   4,291   4,237   78    100   105   8,611  9,275  3,101   2,769   2,883  56.9% 59.3% 54.7%
09/05/02 13,370   154    0    242   1,029  1,117  1,124  14,795   3,050   3,990   4,274   76    72    96    8,364  8,661  3,381   2,869   2,983  55.4% 56.9% 52.0%
09/06/02 13,665   154    0    213   1,002  1,113  1,113  15,034   3,000   4,293   3,789   65    97    99    8,149  8,292  3,885   3,052   3,133  53.1% 55.1% 50.7%
09/07/02 13,665   154    0    213   1,056  1,109  1,109  15,088   2,950   3,998   4,363   79    101   96    8,435  8,236  3,703   3,215   3,215  54.7% 54.4% 51.2%
09/08/02 13,782   154    0    211   1,086  1,103  1,114  15,233   2,900   3,991   4,371   78    101   98    8,438  8,269  3,895   3,398   3,300  54.2% 54.0% 52.0%
09/09/02 13,633   154    0    210   1,151  1,096  1,121  15,148   2,900   4,998   4,004   77     0    82    9,161  8,575  3,087   3,455   3,276  59.4% 56.1% 54.8%
09/10/02 13,960   154    0    202   1,178  1,091  1,123  15,494   2,850   4,994   3,985   89    38    82    9,113  8,781  3,531   3,512   3,302  57.7% 57.1% 56.6%
09/11/02 13,877   154    0    189   1,132  1,101  1,121  15,352   2,800   5,491   4,300   84    49    91    9,917  9,258  2,635   3,446   3,241  63.5% 60.2% 59.9%
09/12/02 13,996   154    0    193   1,102  1,121  1,122  15,445   2,750   5,592   4,300   84    60    94   10,009  9,554  2,686   3,346   3,195  63.7% 61.6% 61.6%
09/13/02 14,311   154    0    201   1,140  1,134  1,124  15,806   2,700   5,593   4,333   85    58    98   10,051  9,870  3,055   3,228   3,184  62.4% 63.2% 63.5%
09/14/02 14,360   154    0    204   1,151  1,145  1,127  15,869   2,650   5,198   4,297   89    50    84    9,618  9,771  3,601   3,213   3,214  59.5% 61.9% 63.0%
09/15/02 14,153   154    0    223   1,161  1,158  1,135  15,691   2,600   5,491   4,320   78    50    89    9,928  9,745  3,163   3,108   3,210  62.2% 61.4% 63.0%
09/16/02 13,574   154    0    233   1,243  1,179  1,147  15,204   2,600   4,800   4,296   82    35    88    9,230  9,468  3,374   3,149   3,221  59.6% 60.4% 61.5%
09/17/02 13,845   154    0    224   1,326  1,192  1,151  15,549   2,550   4,991   3,911   73    64    89    9,000  9,270  3,999   3,216   3,266  56.8% 59.6% 60.2%
09/18/02 13,657   154    0    224   1,222  1,200  1,151  15,257   2,500   4,993   3,987   71    48    86    9,089  8,993  3,668   3,364   3,289  58.5% 58.3% 58.2%
09/19/02 14,131   154    0    198   1,155  1,198  1,150  15,638   2,450   4,991   4,388   73    71    93    9,474  9,087  3,714   3,511   3,311  59.5% 58.3% 58.6%
09/20/02 14,037   154    0    194   1,125  1,200  1,151  15,510   2,450   3,994   4,399   74    85    93    8,475  8,918  4,585   3,729   3,375  53.6% 57.2% 57.3%
09/21/02 13,864   154    0    203   1,170  1,198  1,151  15,391   2,400   2,997   4,353   76    50    89    7,465  8,374  5,526   4,004   3,477  47.4% 53.5% 53.7%
09/22/02 13,661   154    0    199   1,145  1,196  1,154  15,159   2,350   2,996   4,371   75    50    103   7,494  7,704  5,315   4,312   3,561  48.3% 49.8% 49.4%
09/23/02 13,437   154    0    188   1,227  1,181  1,157  15,006   2,350   2,996   4,343   86    109   97    7,413  7,352  5,243   4,578   3,634  48.2% 48.0% 47.1%
09/24/02 13,438   154    0    182   1,226  1,176  1,158  15,000   2,300   2,994   4,376   88    38    90    7,508  7,359  5,192   4,749   3,699  48.9% 48.4% 47.3%
09/25/02 13,151   154    0    176   1,181  1,175  1,158  14,662   2,250   2,995   4,473   84    56    86    7,582  7,392  4,830   4,915   3,744  50.6% 49.2% 47.7%
09/26/02 12,912   154    0    166   1,149  1,181  1,158  14,381   2,250   2,696   4,371   83    41    102   7,210  7,301  4,921   5,087   3,789  48.9% 49.4% 47.4%
09/27/02 12,060   154    0    161   1,170  1,177  1,158  13,545   2,200   2,690   4,352   71    29    81    7,166  7,192  4,179   5,029   3,804  51.8% 50.4% 47.3%
09/28/02 12,678   154    0    171   1,138  1,175  1,157  14,141   2,200   2,698   4,445   66    35    92    7,265  7,084  4,676   4,908   3,835  50.3% 50.3% 47.0%
09/29/02 12,758   154    0    173   1,131  1,168  1,157  14,216   2,150   1,990   4,369   75    35    77    6,475  6,848  5,591   4,947   3,895  44.5% 48.8% 45.7%
09/30/02 12,252   154    0    192   1,180  1,174  1,161  13,778   2,150   2,495   4,315   81     0    86    6,977  6,771  4,651   4,863   3,921  49.4% 48.0% 45.6%


  Total  408,587 4,620   0   6,130  34,677 34,650 34,411 454,014 78,950  125,984 128,131 2,361 1,784 2,753 257,444 257,55117,620 110,938 100,029 1662.71677.31629.9
 Average 13,620   154    0    204   1,156  1,155  1,147  15,134   2,632   4,199   4,271   79    59    92    8,581  8,585  3,921   3,698          55.4% 55.9% 54.3%