U.S. Bureau of Reclamation - Central Valley Operations Office
Delta Outflow Computation (values in c.f.s.)

FEBRUARY 1998
          Estimated numbers are in bold italic print
                                                DELTA INFLOW                                                            DELTA EXPORTS                                               OUTFLOW INDEX
           Sacto R              Yolo +  East Side      S. Joaquin River@Vernalis  Total              Clifton              Contra    Byron               Total   3-day                                   Export/
          @Freeport    SRTP      Misc    Streams            7-day      Monthly    Delta               Court     Tracy     Costa    Bethany     NBA      Delta      Avg       NDOI   7-day      Monthly  Inflow
   Date   -prev day--prev wk- -prev day--prev day--prev day- Average   Average    Inflow     NDCU   (CLT)     (TRA)     (CCC)     (BBID)               Exports  TRA & CLT   daily      Avg       Avg    (%)
 02/01/98    70,723       227    58,093     3,908     9,022     7,969    10,089   141,973    (2,295)    1,994     3,724        74         0        14     5,805     5,908   138,463   117,688   138,463   4.0%
 02/02/98    70,070       229    56,627     3,106    10,089     8,459    10,576   140,121    (4,121)    2,548     3,609        57         0        35     6,249     5,913   137,992   122,010   138,227   4.4%
 02/03/98    71,906       230    62,659     4,133    11,063     9,291    11,443   149,991    (8,229)    1,580     2,092        52         0        40     3,764     5,182   154,456   129,538   143,637   2.4%
 02/04/98    84,363       232   102,514    19,351    13,178    10,686    12,811   219,638   (14,162)      437     2,361        59         0        48     2,905     4,209   230,895   147,983   165,451   1.3%
 02/05/98    94,129       233   135,835    10,696    16,914    12,465    14,157   257,807   (14,390)        0     2,805        85         0        50     2,941     3,092   269,257   171,052   186,212   1.1%
 02/06/98    90,263       235   161,142     9,939    19,540    14,362    15,252   281,119   (15,303)        0     2,812        75         0        41     2,928     2,805   293,494   194,893   204,093   1.0%
 02/07/98    86,144       236   177,657    10,620    20,726    16,255    16,255   295,383   (15,075)        0     2,705        60         0        43     2,809     2,774   307,650   218,887   218,887   0.9%
 02/08/98    84,373       238   181,359    14,372    22,278    18,495    17,444   302,620   (13,021)        0     2,585        62         0        45     2,692     2,701   312,949   243,813   230,644   0.9%
 02/09/98    86,766       238   187,377    15,414    25,765    21,131    18,786   315,560    (5,946)        0     3,302        62         0        49     3,412     2,864   318,094   269,542   240,361   1.0%
 02/10/98    84,055       238   186,362    13,418    29,519    23,834    20,117   313,592    (5,996)        0     3,610        71         0        45     3,726     3,166   315,863   292,600   247,911   1.2%
 02/11/98    81,454       238   174,002    12,646    32,094    26,198    21,330   300,434    (5,996)        0     3,561        71         0        44     3,676     3,491   302,755   302,866   252,897   1.2%
 02/12/98    79,671       238   153,540    11,896    33,467    28,304    22,409   278,812    (4,399)        0     3,627        76         0        49     3,751     3,599   279,460   304,323   255,111   1.3%
 02/13/98    78,105       238   134,834     9,502    34,280    30,348    23,381   256,959    (5,084)        0     3,626        83         0        46     3,755     3,605   258,287   299,294   255,355   1.4%
 02/14/98    77,977       238   122,949     8,470    35,036    32,096    24,176   244,670    (3,486)        0     3,632        83         0        42     3,757     3,628   244,399   290,258   254,572   1.5%
 02/15/98    80,377       238   119,325    10,322    34,511    33,281    24,835   244,773    (7,594)        0     3,619        92         0        45     3,756     3,626   248,611   281,067   254,175   1.5%
 02/16/98    86,688       238   124,702    10,337    34,061    33,857    25,379   256,026    (6,225)        0     3,616        67         0        46     3,729     3,623   258,522   272,557   254,447   1.4%
 02/17/98    86,146       238   119,072     9,038    33,548    33,963    25,818   248,042    (8,963)        0     3,439        69         0        46     3,553     3,558   253,452   263,641   254,388   1.4%
 02/18/98    84,717       238   114,962     8,771    32,835    33,782    26,173   241,523    (6,225)        0     3,509        59         0        49     3,617     3,521   244,130   255,266   253,818   1.5%
 02/19/98    82,943       238   103,929     8,233    32,204    33,514    26,501   227,547    (6,225)        0     3,774        68         0        38     3,881     3,574   229,891   248,185   252,559   1.7%
 02/20/98    80,945       238   110,851     7,759    32,402    33,132    26,794   232,195    (6,225)        0     3,880        72         0        48     4,000     3,721   234,420   244,775   251,652   1.7%
 02/21/98    80,986       238   102,740     7,044    32,364    32,749    27,034   223,372    (6,175)        0     3,730        59         0        44     3,834     3,795   225,713   242,106   250,417   1.7%
 02/22/98    79,141       238   105,215     7,288    31,830    32,406    27,244   223,712    (6,403)        0     3,052        78         0        45     3,175     3,554   226,940   239,010   249,350   1.4%
 02/23/98    80,708       238   118,257     9,174    31,657    32,079    27,418   240,034    (6,403)        0     3,518        71         0        45     3,633     3,433   242,803   236,764   249,065   1.5%
 02/24/98    81,112       238   119,303     9,683    31,258    31,803    27,564   241,594    (8,000)        0     2,487        70         0        50     2,607     3,019   246,987   235,841   248,978   1.0%
 02/25/98    79,966       238   112,972     9,332    30,908    31,568    27,683   233,416    (3,664)        0     1,158        75         0        46     1,279     2,387   235,801   234,651   248,451   0.5%
 02/26/98    78,266       238   105,509     7,758    30,557    31,376    27,813   222,328    (3,664)        0       771        75         0        46       892     1,472   225,100   233,966   247,553   0.3%
 02/27/98    77,169       238    97,383     6,604    31,061    31,180    27,931   212,455      (698)        0       768        90         0        48       906       899   212,246   230,799   246,246   0.4%
 02/28/98    75,943       238    88,254     5,390    30,987    31,091    28,048   200,812      (698)        0     1,382        84         0        44     1,510       974   199,999   227,125   244,594   0.7%




  Total   2,275,106     6,620 3,437,424   264,204   763,154   715,673   614,459 6,746,508  (194,666)    6,559    82,755     1,998         0     1,234    92,545    94,092 6,848,629 6,550,499 6,437,514  40.1%
 Average     81,254       236   122,765     9,436    27,256    25,560    21,945   240,947    (6,952)      234     2,956        71         0        44     3,305     3,360   244,594   233,946   229,911   1.4%