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                               Ft Gibson Lake, OK
                          MONTHLY LAKE REPORT
                                 MAY 04


    POOL ELEVATIONS  STORAGE     RELEASES       EVAP  INFLOW   RAINFALL
DAY      FT-NGVD     2400HR         DSF        INCHES   ADJ     INCHES
      0800    2400    AC-FT   POWER    TOTAL  8A TO 8A  DSF    7A TO  7A
                                                               DAM   BSN
PRIOR MONTH  563.22   573395
 1   562.29  561.00   516600  10941    43179   0.110   14000   0.43  0.54
 2   560.39  559.83   488656  11265    41394   0.020   27000   0.13  0.27
 3   559.59  559.19   473808  11488    40656   0.190   33000   0.00  0.00
 4   558.98  558.18   451032  11524    39747   0.280   29000   0.00  0.00
 5   557.66  556.74   419966  11625    38037   0.360   23000   0.00  0.00

 6   556.25  556.04   405336  11697    29276   0.360   22000   0.00  0.00
 7   555.83  556.02   404918  11312    19958   0.350   20000   0.00  0.00
 8   555.66  555.50   394500  11360    17918   0.290   13300   0.00  0.00
 9   554.99  554.76   379868  11471    16475   0.260    9200   0.00  0.00
10   554.57  554.91   382762   7310    14280   0.280   16000   0.00  0.00

11   554.68  554.79   380447   5652    14655   0.350   13600   0.00  0.00
12   554.55  554.76   379868   5595    14535   0.240   14350   0.00  0.00
13   554.78  555.87   401900   5614    14836   0.140   26000   0.00  0.04
14   556.45  556.14   407426   5664    17216   0.060   20000   2.64  2.01
15   556.38  556.38   412442   5577    19843   0.020   22500   0.00  0.00

16   556.32  556.31   410979   5533    19792   0.150   19000   0.00  0.00
17   556.11  556.65   418086   7703    19784   0.300   23500   0.00  0.00
18   556.10  556.21   408889  11300    19612   0.310   15000   0.14  0.02
19   556.16  555.99   404300  11440    19767   0.220   17600   0.00  0.00
20   555.56  555.63   397100  11360    17919   0.270   14500   0.00  0.00

21   555.44  555.79   400300  11136    15037   0.370   16800   0.00  0.00
22   555.32  555.30   390500  11130    15570   0.330   10800   0.00  0.00
23   554.88  554.46   374078  11165    15445   0.300    7500   0.00  0.00
24   554.15  554.50   374850  11110    12754   0.290   13300   0.00  0.00
25   554.43  554.64   377552  11018    11018   0.280   12600   0.00  0.00

26   554.24  554.39   372727  10965    10965   0.060    8700   0.00  0.00
27   554.04  554.83   381219  11009    11009   0.140   15000   0.00  0.03
28   554.55  555.28   390101  10925    10925   0.100   15000   0.00  0.00
29   554.88  554.28   370605  10861    10861   0.320    1200   0.00  0.00
30   554.22  554.28   370605      0        0   0.280    1000   0.00  0.35
31   554.31  554.31   371183      0        0   0.180     500   0.52  0.19

TOTAL                        284750   592463   7.210  494950   3.86  3.45
AVERAGE   555.90               9185    19112           15966 NORMAL= 5.37

MAXIMUM   563.22      573395   DATE= 1    TOP CONSERVATION POOL    554.00
MINIMUM   553.77      360899   DATE=24    TOP FLOOD POOL           582.00

                      INFLOW VOLUME=   981718 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION