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                                  Oologah Lake
                          MONTHLY LAKE REPORT
                                 JUL 98


    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  637.98   551614
 1   637.93  638.09   555068      0       49   0.073    1000   0.59  0.33
 2   638.11  638.03   553169      0       49   0.128     600   0.04  0.16
 3   638.04  638.04   553484      0       50   0.210     370   0.00  0.01
 4   638.03  638.03   553169      0       49   0.270     150   0.00  0.00
 5   638.01  638.02   552853      0       50   0.290     100   0.00  0.00

 6   637.99  637.97   551312      0       51   0.290     100   0.00  0.00
 7   638.06  637.96   551011      0       51   0.330     100   0.00  0.26
 8   638.12  638.01   552536      0       51   0.180     300   1.25  0.52
 9   637.99  637.96   551011      0       51   0.250     100   0.00  0.04
10   637.95  637.91   549500      0       51   0.300     100   0.00  0.07

11   638.01  637.97   551312      0       51   0.420    1100   0.02  1.04
12   638.02  638.00   552219      0       51   0.050     900   1.10  0.30
13   638.00  638.03   553169      0       51   0.270     930   0.00  0.01
14   638.05  638.04   553484      0       49   0.310     600   0.00  0.00
15   638.05  638.05   553801      0       49   0.310     400   0.00  0.00

16   638.05  638.03   553169      0       49   0.310     150   0.00  0.00
17   638.03  638.01   552536      0       50   0.320     100   0.00  0.00
18   637.99  637.97   551312      0       51   0.290     100   0.00  0.00
19   637.96  637.94   550407      0       51   0.310     100   0.00  0.00
20   637.90  637.91   549500      0       47   0.340     100   0.00  0.00

21   637.89  637.87   548292      0       47   0.420     100   0.00  0.00
22   637.81  637.86   547990      0       47   0.350     100   0.00  0.00
23   637.90  637.84   547387      0       47   0.360      90   0.00  0.47
24   637.81  637.81   546480      0       47   0.360      90   0.00  0.21
25   637.78  637.75   544668      0       47   0.217      90   0.00  0.04

26   637.70  637.73   544063      0       47   0.520      80   0.00  0.02
27   637.72  637.75   544668      0       47   0.327      80   0.00  0.02
28   637.74  637.67   542251      0       47   0.290      80   0.00  0.37
29   637.63  637.64   541346      0       47   0.220      80   0.00  0.16
30   637.64  637.72   543761      0       47   0.290      80   0.00  0.01
31   637.72  637.65   541648      0       47   0.350      80   0.00  0.06

TOTAL                             0     1509   8.955    8350   3.00  4.10
AVERAGE   637.91                  0       49             269 NORMAL= 3.43

MAXIMUM   638.12      556016   DATE= 8    TOP CONSERVATION POOL    638.00
MINIMUM   637.58      539533   DATE=30    TOP FLOOD POOL           661.00

WATER SUPPLY:  WITHDRAWN   3450 AC-FT, RELEASED      0 AC-FT

                      INFLOW VOLUME=    16562 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION