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                                  Oologah Lake
                          MONTHLY LAKE REPORT
                                 MAY 16


    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  641.80   573674
 1   641.77  641.83   574638      0    10000   0.230   10845   0.01  0.00
 2   641.79  641.59   566941      0    12396   0.250    8720   0.00  0.00
 3   641.47  641.17   553470      0    15000   0.090    8565   0.00  0.00
 4   641.06  640.79   541474      0    15000   0.250    9395   0.00  0.00
 5   640.64  640.48   531814      0    12383   0.350    7910   0.00  0.00

 6   640.42  640.34   527453      0     7890   0.300    6115   0.00  0.00
 7   640.31  640.22   523712      0     6512   0.330    4800   0.00  0.00
 8   640.09  639.89   513527      0     4721   0.360    3500   0.00  0.00
 9   639.85  639.87   512921      0     6211   0.160    2575   0.00  0.05
10   639.61  639.37   497782      0     7362   0.170    2000   0.10  0.26

11   639.23  639.20   492635      0     6270   0.350    1900   0.00  0.01
12   639.07  639.01   486882      0     3181   0.290    1950   0.21  0.05
13   639.01  639.29   495359      0     1937   0.320    1950   0.00  0.00
14   639.01  639.01   486882      0     1938   0.400    1950   0.00  0.08
15   638.95  638.90   483638      0     2163   0.320     815   0.00  0.00

16   638.89  639.10   489606      0     2163   0.190    5305   0.11  0.34
17   639.22  640.15   521532      0     4274   0.020   20560   1.17  2.33
18   640.46  640.99   547706      0     8583   0.080   22095   0.00  0.02
19   641.13  641.26   556357      0     8615   0.210   13145   0.00  0.00
20   641.32  641.35   559242      0     9401   0.050   11030   0.28  0.13

21   641.35  641.29   557318      0    10058   0.060    9460   0.00  0.00
22   641.20  641.05   549621      0    10046   0.270    6565   0.00  0.00
23   640.96  641.08   550584      0     6284   0.300    6945   0.00  0.00
24   641.08  640.89   544591      0     4495   0.060    1800   0.37  0.19
25   641.26  641.89   576562      0     2155   0.220   18675   0.79  0.74

26   642.06  642.31   590321      0        0   0.300    7230   0.51  0.10
27   642.40  642.77   605504      0        0   0.180    7900   0.00  0.19
28   642.82  642.97   612104      0     4557   0.130    8290   0.00  0.26
29   642.98  643.03   614115      0     9085   0.290   10415   0.00  0.00
30   643.03  643.09   616153      0     9089   0.200   10325   0.00  0.01
31   643.13  643.18   619209      0     9094   0.090   10939   0.01  0.03

TOTAL                             0   210863   6.820  243669   3.56  4.79
AVERAGE   640.88                  0     6802            7860 NORMAL= 5.09

MAXIMUM   643.18      619209   DATE=31    TOP CONSERVATION POOL    638.00
MINIMUM   638.89      483343   DATE=16    TOP FLOOD POOL           661.00

WATER SUPPLY:  WITHDRAWN   7170 AC-FT

                      INFLOW VOLUME=   483310 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION