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                               Ft Gibson Lake, OK
                          MONTHLY LAKE REPORT
                                 APR 15


    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  559.00   469400
 1   558.77  558.89   466936   7631     7631   0.270    6500   0.00  0.00
 2   558.77  559.21   474273   7601     7601   0.170   11450   0.00  0.18
 3   559.11  559.47   480303   7646    11162   0.190   14300   0.00  0.02
 4   559.15  559.85   489119   7720    15108   0.150   19700   0.00  0.00
 5   559.33  559.92   490744   7709    15125   0.250   15950   0.00  0.00

 6   559.43  559.27   475664   7876    25753   0.030   18200   0.17  0.26
 7   558.42  558.22   451927   7714    25401   0.120   13600   0.00  0.00
 8   557.41  557.02   425832   8117    23395   0.230   10400   0.00  0.00
 9   556.30  556.84   422057   8077    17686   0.210   15900   0.00  0.07
10   556.30  556.61   417249   7962    13185   0.170   10900   0.00  0.01

11   556.21  556.30   410770   7965    11646   0.250    8500   0.00  0.00
12   555.99  555.58   396100   7991    11585   0.150    4250   0.00  0.01
13   555.54  555.45   393500   7999    10201   0.170    8900   0.00  0.08
14   555.28  555.34   391301   7931     7931   0.010    6850   0.81  0.57
15   555.04  555.97   403899   7998    10419   0.040   16800   0.06  0.07

16   555.54  556.23   409307   7817    11400   0.060   14300   0.00  0.00
17   555.91  555.70   398500   7944    10364   0.290    5050   0.00  0.00
18   555.46  555.88   402100   8700     8700   0.170   10600   0.45  0.23
19   555.73  556.70   419130  10569    10569   0.190   19250   0.29  0.52
20   556.43  557.35   432959  10478    10478   0.140   17600   0.03  0.14

21   557.05  558.01   447224   8383     8383   0.230   15700   0.00  0.00
22   557.77  557.98   446568   7818    12764   0.220   12500   0.01  0.01
23   557.50  557.74   441384   7889    15264   0.090   12700   0.05  0.05
24   557.26  557.73   441168   7912    15223   0.120   15200   0.07  0.10
25   557.23  557.65   439441   7919    15204   0.110   14550   0.00  0.00

26   557.14  557.08   427128   7954    15138   0.290    9050   0.00  0.00
27   556.74  556.80   421220   7846    10515   0.240    7600   0.10  0.13
28   556.61  556.57   416413   7787     7787   0.060    5400   0.13  0.34
29   556.33  555.82   400900   8017     8017   0.100     350   0.07  0.01
30   555.66  555.52   394900   8005     8005   0.240    5150   0.00  0.00

TOTAL                        242975   381640   4.960  347200   2.24  2.80
AVERAGE   557.22               8099    12721           11573 NORMAL= 4.17

MAXIMUM   559.92      490744   DATE= 5    TOP CONSERVATION POOL    554.00
MINIMUM   555.04      385300   DATE=15    TOP FLOOD POOL           582.00

                      INFLOW VOLUME=   688661 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION