05/24/06
                                                                U.S. Bureau of Reclamation - Central Valley Operations Office
                                                                        Delta Outflow Computation (values in c.f.s.)

                                                                                April 2006
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     (%)     (%)    (%)
04/01/06 70,524    248    34,886   6,640   14,846 13,555 15,075 127,144  -3,271  2,991   1,019    2      0     9    4,021    4,003  126,394 118,924126,394   3.2%   3.2%   3.6%
04/02/06 73,139    244   41,472   7,958   15,075  14,157 15,650 137,888 (1,445)  2,492    979     2     0      5    3,477   3,833   135,856 124,268131,125   2.5%   3.0%   3.4%
04/03/06 74,379    240   45,336   6,100   16,225  14,742 15,999 142,280 (3,043)  1,999   1,022    5     0     12    3,038   3,501   142,284 127,733134,845   2.1%   2.6%   3.0%
04/04/06 75,469    236   54,511   12,480  16,696  15,385 16,249 159,392 (7,329)  1,430   1,023    6     0     16    2,475   2,982   164,245 133,724142,195   1.5%   2.0%   2.5%
04/05/06 86,624    232   76,582   25,196  17,000  16,184 16,753 205,634 (11,665)  495    1,029    7     0     24    1,555   2,333   215,744 147,195156,905   0.7%   1.4%   1.8%
04/06/06 92,662    228   98,796   25,707  18,767  17,057 17,425 236,160 (10,752)  500    1,027    5     0     20    1,552   1,835   245,360 164,507171,647   0.6%   0.9%   1.3%
04/07/06 92,156    224   101,648  20,638  20,788  18,063 18,063 235,454 (10,752) 1,241   1,028    6     0     21    2,297   1,774   243,909 181,970181,970   1.0%   0.8%   1.2%
04/08/06 87,894    220   91,069   18,842  21,888  19,221 18,703 219,913 (9,561)  1,999    952     6     0     23    2,980   2,249   226,494 196,270187,536   1.3%   1.0%   1.4%
04/09/06 85,200    220   82,648   18,060  23,183  20,838 19,685 209,311 (4,540)  1,996    911    11     0     21    2,939   2,709   210,912 206,993190,133   1.4%   1.2%   1.7%
04/10/06 84,000    220   76,403   16,908  27,542  22,897 20,827 205,073   937    1,999    888     5     0     20    2,912   2,915   201,224 215,413191,242   1.4%   1.4%   1.7%
04/11/06 82,000    220   68,628   15,080  31,108  25,075 21,865 197,036   24     1,994    864     4     0     30    2,892   2,884   194,120 219,680191,504   1.5%   1.4%   1.7%
04/12/06 80,170    220   64,887   12,310  32,246  27,294 22,902 189,833  (432)   1,995    869     5     0     23    2,891   2,870   187,374 215,627191,160   1.5%   1.5%   1.6%
04/13/06 80,082    220   74,880   11,695  34,300  29,291 23,814 201,177 (1,980)  1,992    875     5     0     20    2,892   2,863   200,265 209,185191,860   1.4%   1.5%   1.5%
04/14/06 78,839    220   74,053   11,085  34,767  31,090 24,576 198,964 (1,980)  1,987    249     5     0     22    2,262   2,656   198,682 202,724192,347   1.1%   1.4%   1.4%
04/15/06 79,979    220   79,273   9,854   34,483  32,590 25,183 203,809 (1,980)  1,992    69      4     0     20    2,085   2,388   203,703 199,468193,104   1.0%   1.2%   1.2%
04/16/06 80,860    220   89,511   9,095   33,683  33,353 25,665 213,369  (610)   2,695     0      3     0     19    2,716   2,331   211,263 199,519194,239   1.3%   1.1%   1.2%
04/17/06 82,000    220   93,599   10,902  32,883  33,430 26,016 219,604 (1,067)  1,995    434     5     0     22    2,455   2,395   218,216 201,946195,650   1.1%   1.1%   1.2%
04/18/06 82,500    220   96,164   10,996  31,646  33,232 26,286 221,526   987    2,740    180     5     0     22    2,946   2,681   217,593 205,299196,869   1.3%   1.2%   1.3%
04/19/06 81,000    220   90,631   9,366   30,862  32,745 26,528 212,079   987    2,742     0      7     0     23    2,772   2,697   208,320 208,292197,471   1.3%   1.2%   1.3%
04/20/06 78,923    220   78,665   8,731   30,892  32,211 26,753 197,431   987    2,750     0      0     0     18    2,768   2,804   193,676 207,350197,282   1.4%   1.3%   1.3%
04/21/06 75,352    220   64,372   8,265   31,025  31,711 26,954 179,234   987    4,503    333    13     0     21    4,870   3,443   173,377 203,735196,143   2.7%   1.8%   1.7%
04/22/06 73,413    220   53,621   8,037   30,983  31,316 27,135 166,274  1,900   5,987     0      4     0     22    6,012   4,524   158,362 197,258194,426   3.6%   2.5%   2.3%
04/23/06 72,759    220   47,545   7,975   30,921  31,011 27,292 159,420  1,900   5,991     0      7     0     23    6,020   5,605   151,500 188,720192,560   3.8%   3.3%   2.8%
04/24/06 71,645    220   41,117   7,857   30,746  30,874 27,433 151,585  1,950   3,493    647     5     0     21    4,166   5,373   145,469 178,328190,597   2.7%   3.4%   2.8%
04/25/06 72,024    220   34,991   7,723   30,688  30,849 27,563 145,646  1,950   3,744   1,471    6     0     23    5,244   5,116   138,452 167,022188,512   3.6%   3.4%   2.7%
04/26/06 71,588    220   30,297   7,621   30,688  30,844 27,690 140,414  1,950   2,490   1,712    5     0     23    4,230   4,519   134,234 156,438186,424   3.0%   3.1%   2.4%
04/27/06 71,833    220   26,880   7,544   30,858  30,854 27,816 137,335  1,950   2,494   1,716    5     0     17    4,231   4,542   131,154 147,507184,377   3.1%   3.2%   2.5%
04/28/06 70,585    220   23,055   7,423   31,096  30,892 27,939 132,379  2,000   3,743   1,719    5     0     32    5,499   4,625   124,880 140,579182,252   4.1%   3.4%   2.6%
04/29/06 71,658    220   20,340   7,151   31,246  30,930 28,051 130,615  2,000   4,400   1,720    5     0     35    6,160   5,264   122,455 135,449180,190   4.7%   3.9%   3.1%
04/30/06 71,131    220   22,094   7,225   31,188  30,965 28,149 131,858  2,000   4,400   1,706    5     0     26    6,136   5,896   123,722 131,481178,308   4.6%   4.5%   3.5%


  Total 2,350,388  6,712 1,877,95 344,464 828,319 792,652700,0395,407,83(47,895) 81,271  24,443   152      0   629 106,496  103,610 5,349,235,332,65,429,26   64.6%  62.8%  61.8%
Average   78,346     224  62,598   11,482  27,611 26,422 23,335 180,261  (1,596)  2,709     815     5      0    21   3,550    3,454 178,308 177,753            2.2%   2.1%   2.1%