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                               Ft Gibson Lake, OK
                          MONTHLY LAKE REPORT
                                 SEP 09


    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  558.61   460664
 1   558.43  558.07   448568  10264    10365   0.280    4450   0.00  0.00
 2   557.75  557.39   433824  10411    10537   0.280    3150   0.04  0.20
 3   557.08  556.67   418503  10504    10630   0.110    3050   0.92  1.19
 4   556.37  556.56   416204  10510    10634   0.190    9600   0.04  0.06
 5   556.66  556.92   423728   7979     8105   0.160   12000   0.68  0.44

 6   556.98  557.02   425832   7897     8023   0.200    9200   0.66  0.15
 7   557.03  557.16   428855   5157     5283   0.190    7000   0.00  0.00
 8   557.19  557.18   429288   5337     5463   0.280    5850   0.00  0.00
 9   557.02  556.92   423728   9373    15089   0.280   12350   0.00  0.52
10   556.92  557.21   429936  10860    20776   0.130   24000   2.78  2.48

11   557.26  557.35   432959  10846    20882   0.120   22500   0.64  0.15
12   557.38  557.43   434688  11015    21100   0.210   22050   0.00  0.00
13   557.42  557.35   432959  11074    21158   0.060   20300   0.13  0.03
14   557.37  557.73   441168  11096    21217   0.040   25350   0.14  0.46
15   557.94  558.42   456408  11008    21408   0.040   29150   0.05  0.08

16   558.64  559.07   471024  10941    21641   0.090   29050   0.03  0.08
17   559.29  559.68   485176  10882    21894   0.050   29050   0.03  0.07
18   559.87  559.62   483784  10801    22010   0.050   21450   0.00  0.02
19   559.48  559.13   472416  10874    21881   0.170   16250   0.00  0.00
20   558.69  558.18   451032  11010    21627   0.140   10950   0.00  0.00

21   557.64  558.20   451480  11102    21387   0.170   21700   0.00  0.00
22   558.62  559.62   483784  11156    15269   0.150   31600   1.79  2.10
23   559.83  560.21   497641  10989    25436   0.050   32500   0.14  0.01
24   560.37  560.39   501960  10832    25577   0.120   27800   0.00  0.00
25   560.37  560.27   499080  10747    23303   0.080   22050   0.00  0.00

26   560.15  559.81   488192  10670    20144   0.230   14800   0.00  0.00
27   559.63  559.03   470097  10866    23021   0.210   14100   0.00  0.00
28   558.67  558.00   447000  11071    25171   0.280   13650   0.02  0.00
29   557.67  557.19   429504  11199    24728   0.190   16000   0.00  0.00
30   556.85  556.44   413696  11380    24389   0.200   16600   0.00  0.00

TOTAL                        307851   548148   4.750  527550   8.09  8.04
AVERAGE   558.14              10262    18272           17585 NORMAL= 4.37

MAXIMUM   560.46      503641   DATE=24    TOP CONSERVATION POOL    554.00
MINIMUM   556.37      412233   DATE= 4    TOP FLOOD POOL           582.00

                      INFLOW VOLUME=  1046380 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION