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                                  Oologah Lake
                          MONTHLY LAKE REPORT
                                 APR 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  638.32   562346
 1   638.33  638.28   561081      0     2856   0.310    2200   0.00  0.00
 2   638.24  638.16   557282      0     4079   0.210    2300   0.00  0.00
 3   638.13  637.95   550709      0     4832   0.250    2200   0.00  0.01
 4   637.98  638.06   554118      0     2430   0.240    4400   0.26  0.16
 5   638.09  638.00   552219      0      961   0.210    2000   0.78  0.47

 6   638.25  638.33   562663      0      962   0.090    4800   0.00  0.02
 7   638.36  638.37   563928      0     1717   0.260    2500   0.00  0.00
 8   638.32  638.70   574372      0     4154   0.130    9500   0.16  0.02
 9   638.75  638.54   569307      0     5074   0.040    2700   1.47  0.48
10   638.55  638.46   566777      0     5072   0.140    4000   0.00  0.02

11   638.38  639.18   589773      0     2372   0.170   14100   1.09  0.93
12   639.46  639.86   612094      0     3027   0.030   14400   0.33  0.17
13   640.10  640.57   635968      0     4929   0.090   17100   0.00  0.00
14   640.73  640.97   649495      0     3738   0.090   10900   0.00  0.00
15   641.02  641.41   664752      0     1637   0.230    9650   0.00  0.00

16   641.69  642.07   687754      0        0   0.280   11800   0.00  0.00
17   642.23  642.49   702788      0     3082   0.130   11050   0.15  0.00
18   642.55  642.72   711021      0     5075   0.290   10750   0.00  0.00
19   642.85  643.04   722523      0     5407   0.310   10500   0.00  0.00
20   643.09  643.17   727330      0     5569   0.320    8350   0.00  0.00

21   643.17  643.22   729178      0     5621   0.280    6500   0.00  0.00
22   643.19  643.20   728440      0     5634   0.120    5200   0.05  0.02
23   643.21  642.99   720687      0     5586   0.220    1900   0.00  0.00
24   642.94  642.72   711021      0     5370   0.150     500   0.00  0.00
25   642.64  642.45   701357      0     5067   0.030     300   0.07  0.03

26   642.35  642.17   691333      0     4759   0.070     200   0.00  0.00
27   642.08  641.87   680732      0     4458   0.060     150   0.25  0.12
28   641.83  641.60   671352      0     4669   0.260     100   0.00  0.00
29   641.53  641.24   658848      0     4568   0.300     100   0.00  0.00
30   641.18  641.07   652943      0     4233   0.340     100   0.00  0.00

TOTAL                             0   116938   5.650  170250   4.61  2.45
AVERAGE   640.70                  0     3898            5675 NORMAL= 3.63

MAXIMUM   643.24      729918   DATE=22    TOP CONSERVATION POOL    638.00
MINIMUM   637.93      550104   DATE= 4    TOP FLOOD POOL           661.00

                      INFLOW VOLUME=   337686 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION