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                                  Heyburn Lake
                          MONTHLY LAKE REPORT
                                 AUG 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  761.66     7254
 1   761.66  761.64     7236      0        6   0.250       0   0.00  0.00
 2   761.63  761.61     7210      0        4   0.290       0   0.00  0.00
 3   761.61  761.59     7192      0        3   0.260       0   0.00  0.00
 4   761.59  761.57     7175      0        2   0.230       0   0.00  0.00
 5   761.57  761.54     7149      0        2   0.300       0   0.00  0.00

 6   761.54  761.60     7201      0        1   0.310      25   0.00  0.00
 7   761.61  761.60     7201      0        3   0.030      10   0.90  0.85
 8   761.60  761.60     7201      0        3   0.120       5   0.00  0.00
 9   761.60  761.58     7184      0        3   0.070       5   0.00  0.00
10   761.58  761.58     7184      0        2   0.300       5   0.00  0.00

11   761.59  761.64     7236      0        4   0.140      25   0.16  0.60
12   761.65  761.70     7289      0        8   0.090      50   0.20  0.27
13   761.71  761.70     7289      0        9   0.160      15   0.35  0.43
14   761.70  761.68     7271      0        9   0.270      10   0.12  0.15
15   761.68  761.65     7245      0        7   0.310       5   0.00  0.01

16   761.66  761.62     7219      0        6   0.380       0   0.00  0.00
17   761.64  761.80     7377      0       10   0.310     100   0.60  0.22
18   761.83  761.94     7499      0       24   0.150      90   1.33  1.09
19   762.00  762.00     7552      0       40   0.100      70   0.80  0.94
20   761.99  761.95     7508      0       39   0.140      20   0.05  0.11

21   761.93  761.89     7456      0       30   0.200      10   0.00  0.00
22   761.89  761.90     7464      0       27   0.240      30   0.51  0.49
23   761.90  761.88     7447      0       27   0.160      20   0.00  0.05
24   761.86  761.83     7403      0       22   0.230      10   0.00  0.00
25   761.81  761.79     7368      0       18   0.280       5   0.00  0.00

26   761.77  761.75     7333      0       14   0.280       0   0.00  0.00
27   761.74  761.71     7298      0       11   0.260       0   0.00  0.00
28   761.71  761.68     7271      0        9   0.270       5   0.00  0.00
29   761.68  761.66     7254      0        7   0.290       5   0.00  0.00
30   761.65  761.63     7228      0        6   0.330       5   0.00  0.00
31   761.63  761.65     7245      0        5   0.320      20   0.60  0.23

TOTAL                             0      363   7.070     545   5.62  5.44
AVERAGE   761.71                  0       12              18 NORMAL= 2.83

MAXIMUM   762.00        7552   DATE=19    TOP CONSERVATION POOL    761.50
MINIMUM   761.53        7140   DATE= 6    TOP FLOOD POOL           784.00

                      INFLOW VOLUME=     1081 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION