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                                   Copan Lake
                          MONTHLY LAKE REPORT
                                 DEC 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  710.18    44314
 1   710.18  710.16    44214      0       47   0.040      50   0.00  0.00
 2   710.18  710.18    44314      0       86   0.020     120   0.00  0.00
 3   710.21  710.21    44464      0      107   0.000     170   0.53  0.45
 4   710.19  710.23    44564      0      148   0.020     200   0.00  0.00
 5   710.21  710.22    44514      0      177   0.110     160   0.00  0.00

 6   710.21  710.18    44314      0      210   0.080     120   0.00  0.00
 7   710.16  710.19    44364      0      210   0.060     235   0.00  0.00
 8   710.23  710.35    45163      0      210   0.010     615   0.80  0.48
 9   710.43  710.59    46361      0      210   0.000     815   0.04  0.12
10   710.64  710.60    46410      0      490   0.010     520   0.11  0.07

11   710.57  710.47    45762      0      638   0.030     310   0.02  0.00
12   710.41  710.40    45413      0      371   0.040     200   0.00  0.02
13   710.40  710.41    45462      0      210   0.010     240   0.00  0.00
14   710.41  710.40    45413      0      210   0.050     200   0.00  0.00
15   710.40  710.32    45013      0      301   0.080     100   0.00  0.00

16   710.26  710.16    44214      0      423   0.150      50   0.00  0.00
17   710.11  710.09    43865      0      256   0.090      95   0.00  0.00
18   710.09  710.06    43715      0      148   0.110     100   0.00  0.00
19   710.05  710.10    43915      0       57   0.180     100   0.00  0.00
20   710.14  710.10    43915      0        5   0.140      90   0.00  0.00

21   710.16  710.30    44913      0        5   0.030     500   0.34  0.27
22   710.43  710.62    46510      0      269   0.000    1075   0.59  0.75
23   710.67  710.93    48058      0      641   0.000    1425   0.00  0.00
24   711.25  712.20    54793      0      654   0.000    4050   1.60  1.40
25   712.67  713.34    61221      0      675   0.010    3920   0.00  0.04

26   713.55  713.73    63495      0      883   0.020    2040   0.00  0.00
27   713.77  713.78    63786      0     1029   0.050    1190   0.00  0.00
28   713.81  713.75    63611      0     1030   0.090     965   0.00  0.00
29   713.71  713.60    62736      0     1026   0.130     600   0.13  0.14
30   713.53  713.38    61454      0     1022   0.090     400   0.00  0.00
31   713.30  713.11    59879      0     1015   0.150     250   0.00  0.00

TOTAL                             0    12762   1.800   20905   4.16  3.74
AVERAGE   711.10                  0      412             674 NORMAL= 1.36

MAXIMUM   713.83       64078   DATE=28    TOP CONSERVATION POOL    710.00
MINIMUM   710.04       43616   DATE=19    TOP FLOOD POOL           732.00

                      INFLOW VOLUME=    41464 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION