U.S. Bureau of Reclamation - Central Valley Operations Office
Delta Outflow Computation (values in c.f.s.)

MARCH 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    (%)
 03/01/98    74,446       238    78,839     4,647    31,207    30,964    30,770   189,377       950         0     1,688       261         0        47     1,995     1,279   186,432   221,338   186,432   0.9%
 03/02/98    72,986       236    67,882     4,498    30,770    30,692    30,064   176,372     1,000         0     1,270        98         0        48     1,417     1,447   173,955   211,503   180,193   0.7%
 03/03/98    71,358       234    58,056     4,030    29,357    30,260    29,336   163,035     1,000         0       764       128         0        53       945     1,241   161,090   199,232   173,825   0.5%
 03/04/98    70,360       232    52,373     4,422    27,881    29,667    28,604   155,268     1,000         0     1,407       140         0        50     1,597     1,147   152,671   187,356   168,537   0.9%
 03/05/98    69,712       231    47,883     4,333    26,406    28,791    27,868   148,565     1,050         0     1,789       258         0        52     2,099     1,320   145,415   175,973   163,913   1.2%
 03/06/98    68,951       229    39,915     4,287    24,926    27,740    27,163   138,308      (548)        0     1,792       279         0        51     2,122     1,663   136,734   165,185   159,383   1.3%
 03/07/98    68,968       227    32,579     5,342    23,636    26,531    26,531   130,752      (548)        0     1,786       206         0        47     2,039     1,789   129,260   155,080   155,080   1.4%
 03/08/98    68,062       225    25,313     4,700    22,741    25,204    25,900   121,041      (954)        0     1,780       202         0        51     2,033     1,786   119,962   145,584   150,690   1.5%
 03/09/98    66,867       225    17,631     4,432    21,480    23,938    25,299   110,635      (954)        0     1,749        99         0        49     1,897     1,772   109,692   136,404   146,135   1.6%
 03/10/98    65,706       225    11,541     4,317    20,495    22,824    24,778   102,284      (954)        0     1,708       220         0        47     1,975     1,746   101,263   127,857   141,647   1.7%
 03/11/98    64,581       225     6,658     3,506    20,084    21,857    24,310    95,054       694         0     1,735       288         0        48     2,072     1,731    92,289   119,231   137,160   1.8%
 03/12/98    62,602       225     4,413     3,644    19,636    21,029    23,879    90,520       694         0     1,827       285         0        50     2,162     1,756    87,665   110,981   133,036   2.0%
 03/13/98    59,781       225     4,307     3,982    19,133    20,323    23,480    87,428     1,200         0     1,909       255         0        48     2,211     1,823    84,017   103,450   129,265   2.2%
 03/14/98    56,908       225     4,629     3,511    18,692    19,669    23,100    83,965     1,250         0     1,901       257         0        48     2,206     1,879    80,509    96,485   125,782   2.3%
 03/15/98    54,116       225     4,310     3,691    18,162    19,118    22,735    80,504     1,250         0     1,895       254         0        50     2,198     1,901    77,056    90,356   122,534   2.4%
 03/16/98    52,165       225     4,187     3,610    17,622    18,625    22,379    77,809     1,300         0     1,892       255         0        50     2,197     1,896    74,312    85,301   119,520     2%
 03/17/98    51,179       225     4,129     3,634    17,048    18,094    22,026    76,215     1,350         0     1,898       249         0        31     2,178     1,895    72,687    81,219   116,765   2.5%
 03/18/98    49,857       225     3,968     3,716    16,367    17,490    21,658    74,133     1,350         0     1,892       256         0        24     2,171     1,894    70,612    78,122   114,201   2.6%
 03/19/98    47,644       225     3,904     3,763    15,405    16,806    21,273    70,941     1,400         0     1,890       220         0        18     2,128     1,893    67,413    75,229   111,739   2.7%
 03/20/98    47,696       225     3,923     3,628    14,343    16,132    20,908    69,815     1,400         0     1,889       195         0        19     2,103     1,890    66,312    72,700   109,467   2.7%
 03/21/98    50,524       225     3,833     3,415    13,979    15,619    20,606    71,976     1,450         0     1,894       207         0        14     2,115     1,891    68,411    70,972   107,512   2.6%
 03/22/98    51,775       225     3,803     3,381    14,566    15,198    20,337    73,750     1,272         0     1,893       124         0        18     2,034     1,892    70,444    70,027   105,827   2.6%
 03/23/98    54,334       225     3,962     3,338    14,676    14,807    20,075    76,535     1,044         0     1,906        80         0        15     2,001     1,897    73,490    69,910   104,421   2.5%
 03/24/98    58,408       225     4,075     3,591    14,313    14,479    19,824    80,612    (3,014)        0     2,977        79         0        18     3,074     2,258    80,552    71,034   103,427   3.7%
 03/25/98    64,715       225     7,864     9,550    14,069    14,275    19,591    96,423    (5,981)        0     3,532        83         0        19     3,634     2,805    98,770    75,056   103,241   3.7%
 03/26/98    72,186       225    41,100    13,030    13,978    14,362    19,412   140,519    (8,442)        0     3,546        82         0        19     3,646     3,352   145,314    86,185   104,859   2.5%
 03/27/98    76,731       225    58,132     7,741    14,950    14,645    19,284   157,779    (8,213)        0     2,984        84         0        18     3,086     3,354   162,906    99,984   107,009   1.9%
 03/28/98    77,746       225    67,306     6,315    15,965    14,984    19,201   167,557    (8,163)        0     2,690        74         0        17     2,780     3,073   172,940   114,917   109,363   1.6%
 03/29/98    77,841       225    70,217     5,757    16,934    15,604    19,194   170,974    (4,055)        0     2,676        81         0        15     2,771     2,783   172,258   129,462   111,532   1.6%
 03/30/98    76,734       225    67,922     4,973    19,019    16,639    19,273   168,873    (1,089)        0     2,692        71         0        18     2,781     2,686   167,181   142,846   113,387   1.6%
 03/31/98    75,120       225    60,828     4,368    21,556    17,848    19,378   162,097     1,472         0     2,675        79         0        19     2,772     2,681   157,853   153,889   114,822   1.6%

  Total   1,980,059     7,027   865,482   147,152   609,396   634,212   718,233 3,609,116   (20,790)        0    63,923     5,447         0     1,069    70,440    62,420 3,559,467 3,722,867 4,030,704  60.9%
 Average     63,873       227    27,919     4,747    19,658    20,458    23,169   116,423      (671)        0     2,062       176         0        34     2,272     2,014   114,822   120,092   130,023   2.0%