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                                  Heyburn Lake
                          MONTHLY LAKE REPORT
                                 JAN 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  762.06     7610
 1   762.05  761.97     7526      0       44   0.140       5   0.00  0.00
 2   761.95  761.92     7482      0       34   0.140       5   0.00  0.00
 3   761.93  761.91     7473      0       30   0.100      25   0.00  0.00
 4   762.73  764.63    10333      0      495   0.060    1950   1.20  1.38
 5   764.59  764.26     9897      0      847   0.000    1000   0.50  0.46

 6   764.25  764.61    10310      0      862   0.000     900   0.32  0.61
 7   764.42  764.44    10109      0      815   0.010     700   0.27  0.26
 8   764.41  764.45    10121      0      815   0.010     625   0.68  0.45
 9   764.41  764.04     9638      0      746   0.010     500   0.03  0.20
10   763.85  763.45     8999      0      527   0.010     200   0.00  0.07

11   763.27  762.99     8505      0      334   0.000     100   0.00  0.00
12   762.88  762.71     8236      0      217   0.000      75   0.02  0.01
13   762.67  762.50     8034      0      163   0.010      75   0.02  0.01
14   762.47  762.37     7908      0      123   0.000      50   0.01  0.00
15   762.36  762.25     7793      0       98   0.010      50   0.00  0.03

16   762.23  762.18     7725      0       78   0.030      50   0.00  0.00
17   762.16  762.11     7658      0       65   0.030      25   0.00  0.00
18   762.08  762.05     7600      0       54   0.030      25   0.00  0.00
19   762.03  762.00     7552      0       45   0.030      25   0.00  0.00
20   761.98  761.97     7526      0       38   0.030      25   0.00  0.00

21   761.97  761.94     7499      0       35   0.050      25   0.00  0.00
22   761.93  761.91     7473      0       31   0.090      20   0.00  0.00
23   761.90  761.89     7456      0       28   0.040      20   0.04  0.01
24   761.88  761.87     7438      0       26   0.030      20   0.00  0.00
25   761.87  761.90     7464      0       24   0.120      40   0.00  0.00

26   761.99  762.18     7725      0       50   0.060     175   0.41  0.54
27   762.19  762.18     7725      0       72   0.020      75   0.00  0.00
28   762.17  762.13     7677      0       67   0.120      50   0.00  0.00
29   762.12  762.09     7639      0       59   0.110      25   0.00  0.00
30   762.05  762.01     7562      0       48   0.090      25   0.00  0.00
31   762.00  762.22     7764      0       47   0.120     150   0.00  0.00

TOTAL                             0     6915   1.500    7035   3.50  4.03
AVERAGE   762.62                  0      223             227 NORMAL= 1.49

MAXIMUM   764.86       10604   DATE= 6    TOP CONSERVATION POOL    761.50
MINIMUM   761.86        7429   DATE=25    TOP FLOOD POOL           784.00

                      INFLOW VOLUME=    13954 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION