04/17/03
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                March 2003
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     (%)   (%)   (%)
03/01/03  30,030     167       0      503   2,029  2,003  2,019  32,729     494   7,258   4,345   259      0    31  11,894    9,550  20,341 27,968  20,341   35.5% 26.9% 22.9%
03/02/03  27,521     166       0      488   2,019  2,018  2,034  30,194     544   7,038   4,294   254      0    30  11,615   10,878  18,036 26,056  19,189   37.5% 33.1% 26.5%
03/03/03  25,321     166       0      473   2,048  2,042  2,062  28,008     772   7,253   4,311   257      0    33  11,854   11,500  15,382 23,943  17,920   41.3% 37.9% 28.6%
03/04/03  23,213     165       0      459   2,119  2,060  2,079  25,956     772   7,227   4,320   260      0    33  11,839   11,481  13,345 21,788  16,776   44.5% 40.9% 29.5%
03/05/03  21,752     164       0      455   2,130  2,063  2,074  24,501   1,050   7,340   4,308   256      0    30  11,933   11,586  11,517 19,073  15,724   47.5% 44.3% 31.1%
03/06/03  20,770     163       0      454   2,053  2,066  2,073  23,440   1,050   7,061   4,301   257      0    30  11,650   11,519  10,740 16,369  14,894   48.5% 46.8% 32.4%
03/07/03  19,564     161       0      442   2,067  2,081  2,081  22,234   1,050   7,343   4,297   256     44    36  11,889   11,550   9,296 14,094  14,094   52.2% 49.3% 34.1%
03/08/03  19,000     160       0      438   2,134  2,109  2,098  21,732   1,100   5,936   4,300   256     44    31  10,480   11,080  10,152 12,638  13,601   46.9% 49.2% 34.4%
03/09/03  18,601     159       0      431   2,212  2,137  2,114  21,403   1,100   4,921   4,318   256     44    32   9,482   10,372  10,821 11,608  13,292   43.0% 47.4% 33.8%
03/10/03  17,972     158       0      425   2,244  2,157  2,128  20,799   1,100   5,182   4,279   251      0    33   9,745    9,646   9,954 10,832  12,958   45.5% 45.1% 33.2%
03/11/03  17,221     158       0      424   2,256  2,166  2,135  20,059   1,150   4,273   4,365   255      0    35   8,928    9,113   9,981 10,352  12,688   43.1% 43.8% 33.1%
03/12/03  16,671     157       0      419   2,198  2,187  2,140  19,445   1,150   6,291   4,419   242     38    35  10,949    9,603   7,347  9,756  12,243   54.9% 47.7% 36.9%
03/13/03  16,294     157       0      417   2,199  2,217  2,150  19,067   1,200   6,014   4,402   255     44    36  10,663    9,921   7,204  9,251  11,855   54.4% 50.7% 40.1%
03/14/03  15,616     157       0      404   2,276  2,237  2,159  18,453   1,250   5,699   4,344   255     41    34  10,290   10,390   6,912  8,910  11,502   54.2% 54.5% 44.2%
03/15/03  15,929     157       0      411   2,272  2,275  2,181  18,769     565   5,391   4,305   254     40    32   9,942   10,052   8,261  8,640  11,286   51.4% 53.3% 44.6%
03/16/03  18,212     156   5,992      724   2,481  2,328  2,208  27,565  (4,405)  4,995   4,288   189      0    26   9,497    9,674  22,474 10,305  11,985   33.7% 44.7% 43.4%
03/17/03  26,136     156   4,087      968   2,614  2,368  2,227  33,961  (5,040)  6,687   4,349   236     60    34  11,247   10,005  27,754 12,848  12,913   32.3% 37.3% 44.0%
03/18/03  37,323     159   3,800      706   2,536  2,411  2,242  44,524  (5,040)  6,443   4,368   254     34    31  11,061   10,376  38,503 16,922  14,335   24.2% 29.3% 43.1%
03/19/03  39,645     162       0      650   2,497  2,440  2,251  42,954  (4,990)  6,638   4,352   254     26    38  11,255   10,945  36,689 21,114  15,511   25.5% 26.9% 43.1%
03/20/03  35,853     165       0      606   2,407  2,445  2,254  39,031  (4,534)  6,587   4,328   253     29    32  11,171   10,905  32,394 24,713  16,355   27.9% 25.8% 41.2%
03/21/03  31,153     169       0      644   2,311  2,438  2,252  34,277     537   6,207   4,334   251     27    35  10,800   10,815  22,940 27,002  16,669   30.7% 27.8% 39.5%
03/22/03  27,496     172       0      655   2,222  2,392  2,248  30,545   1,272   4,944   4,338   251     25    31   9,540   10,246  19,733 28,641  16,808   30.3% 29.5% 36.6%
03/23/03  24,879     175       0      603   2,160  2,332  2,246  27,817   1,272   6,214   4,341   252     27    28  10,808   10,126  15,737 27,679  16,761   37.8% 32.7% 35.6%
03/24/03  23,377     178       0      706   2,193  2,281  2,243  26,454     181   6,533   4,283   252     19    35  11,084   10,218  15,189 25,884  16,696   40.8% 36.1% 35.4%
03/25/03  21,970     178       0      893   2,175  2,223  2,237  25,216     409   6,067   4,442   249      5    36  10,788   10,627  14,019 22,386  16,589   41.7% 40.0% 36.4%
03/26/03  22,116     178       0      764   2,090  2,172  2,229  25,148     459   6,588   4,427   247      6    32  11,288   10,780  13,401 19,059  16,466   43.8% 42.1% 36.4%
03/27/03  21,674     178       0      681   2,051  2,127  2,221  24,584     459   6,457   4,429   259      0    37  11,181   10,803  12,944 16,280  16,336   44.3% 43.2% 36.1%
03/28/03  20,736     178       0      845   1,998  2,092  2,212  23,757     509   6,333   4,423   251      0    37  11,044   10,886  12,204 14,747  16,188   45.3% 44.4% 35.9%
03/29/03  21,462     178       0      740   1,976  2,065  2,204  24,356   1,650   6,195   4,406   250      0    34  10,885   10,748  11,821 13,616  16,038   43.5% 44.4% 35.0%
03/30/03  22,852     178       0      669   1,970  2,032  2,196  25,669   1,650   6,197   4,387   252      0    36  10,872   10,647  13,147 13,246  15,941   41.2% 43.3% 34.8%
03/31/03  21,539     178       0      623   1,961  2,005  2,189  24,301   1,700   5,398   4,351   251     19    41  10,022   10,311  12,579 12,874  15,833   40.0% 41.6% 34.5%

  Total  721,898   5,153  13,879   18,120  67,898 67,968 67,182 826,948     434 192,711 134,753 7,769    572 1,034 335,695  326,351 490,819 538,592469,787 1283.3%1260.11116.4%
Average   23,287     166     448      585   2,190  2,193  2,167  26,676      14   6,216   4,347   251     18    33  10,829   10,527  15,833 17,374           41.4% 40.6% 36.0%