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                                  Oologah Lake
                          MONTHLY LAKE REPORT
                                 MAY 97


    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  641.07   652943
 1   641.02  640.67   639350      0     4527   0.250     100   0.00  0.00
 2   640.78  640.34   628190      0     8820   0.310     100   0.00  0.63
 3   640.00  639.38   596339      0    13613   0.200     100   0.00  0.00
 4   639.08  638.40   564878      0    13603   0.240     100   0.00  0.00
 5   638.11  638.02   552853      0     6494   0.320     100   0.00  0.00

 6   638.04  638.04   553484      0       66   0.270     100   0.00  0.01
 7   638.01  638.07   554434      0       61   0.290     200   0.00  0.00
 8   638.27  638.29   561396      0       56   0.110    3900   0.63  0.90
 9   638.43  638.36   563611      0       55   0.290    1500   0.00  0.02
10   638.41  638.42   565510      0       55   0.270     900   0.00  0.00

11   638.42  638.53   568992      0       55   0.270     500   0.00  0.00
12   638.58  638.48   567408      0       55   0.280     500   0.00  0.01
13   638.49  638.52   568676      0       55   0.230    1050   0.00  0.00
14   638.56  638.58   570574      0       55   0.310    1000   0.16  0.15
15   638.58  638.52   568676      0     1280   0.290     500   0.00  0.00

16   638.50  638.35   563294      0     2051   0.240     500   0.00  0.00
17   638.31  638.25   560131      0     2086   0.290     450   0.00  0.00
18   638.18  638.12   556016      0     2093   0.300     400   0.00  0.03
19   638.29  638.02   552853      0     2092   0.310     400   0.09  0.53
20   638.01  637.95   550709      0      750   0.210     350   0.00  0.01

21   637.97  637.95   550709      0       57   0.270     200   0.00  0.00
22   637.94  637.94   550407      0       55   0.310     200   0.00  0.00
23   637.92  637.92   549802      0       55   0.270     200   0.00  0.00
24   637.93  637.95   550709      0       46   0.210     200   0.00  0.00
25   637.90  637.87   548292      0       44   0.210     200   0.00  0.03

26   637.99  637.99   551917      0       44   0.220    1600   0.00  0.13
27   638.09  638.34   562980      0       44   0.230    5500   0.35  0.32
28   638.32  638.37   563928      0       44   0.200    1200   0.00  0.00
29   638.40  638.39   564561      0      640   0.240    1300   0.00  0.00
30   638.40  638.94   581966      0     2810   0.250   11800   0.00  1.15
31   639.23  639.48   599620      0     5556   0.160   14800   0.00  0.10

TOTAL                             0    67322   7.850   49950   1.23  4.02
AVERAGE   638.47                  0     2172            1611 NORMAL= 5.09

MAXIMUM   641.07      652943   DATE= 1    TOP CONSERVATION POOL    638.00
MINIMUM   637.87      548292   DATE=25    TOP FLOOD POOL           661.00

                      INFLOW VOLUME=    99074 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION