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                                   Copan Lake
                          MONTHLY LAKE REPORT
                                 APR 07


    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  713.48    54397
 1   713.69  713.78    56103      0      575   0.150    1470   0.00  0.00
 2   713.77  713.68    55534      0      942   0.230     600   0.00  0.00
 3   713.65  713.60    55079      0      940   0.310     400   0.00  0.00
 4   713.39  713.19    52748      0      933   0.250     200   0.00  0.00
 5   713.09  712.87    50929      0      924   0.190     100   0.00  0.00

 6   712.76  712.34    47916      0     1216   0.050      50   0.11  0.09
 7   712.19  711.74    44508      0     1345   0.120      25   0.00  0.00
 8   711.53  711.11    40933      0     1321   0.170      10   0.00  0.00
 9   710.92  710.59    37982      0     1132   0.080       5   0.00  0.00
10   710.45  710.28    36223      0      702   0.170       5   0.00  0.00

11   710.19  710.18    35655      0      269   0.000       5   0.01  0.04
12   710.18  710.19    35712      0        5   0.150      40   0.00  0.00
13   710.20  710.60    38039      0        5   0.140    1200   0.15  0.12
14   711.23  712.29    47632      0      250   0.000    4300   1.47  2.21
15   712.80  713.43    54113      0      695   0.060    3000   0.03  0.01

16   713.60  713.86    56558      0      940   0.200    2200   0.00  0.00
17   713.94  714.06    57695      0      948   0.240    1200   0.00  0.00
18   714.06  714.01    57411      0      950   0.040     840   0.06  0.11
19   713.97  713.71    55705      0     1266   0.190     450   0.00  0.00
20   713.56  713.23    52976      0     1400   0.250     200   0.00  0.00

21   713.04  712.69    49906      0     1380   0.240     100   0.00  0.00
22   712.42  712.12    46665      0     1357   0.360      50   0.00  0.00
23   711.91  711.53    43316      0     1336   0.170      25   0.00  0.00
24   711.30  710.93    39912      0     1312   0.170      50   0.00  0.00
25   710.76  710.53    37642      0      995   0.000      25   0.17  0.49

26   710.39  710.43    37074      0      406   0.000     100   0.28  0.34
27   710.44  710.52    37585      0      129   0.040     150   0.00  0.00
28   710.56  710.62    38152      0      129   0.130     100   0.00  0.00
29   710.65  710.70    38607      0      129   0.260      50   0.00  0.00
30   710.72  710.76    38947      0      178   0.290     120   0.00  0.00

TOTAL                             0    24110   4.650   17070   2.28  3.41
AVERAGE   711.99                  0      804             569 NORMAL= 3.43

MAXIMUM   714.06       57695   DATE=18    TOP CONSERVATION POOL    710.00
MINIMUM   710.08       35088   DATE=11    TOP FLOOD POOL           732.00

                      INFLOW VOLUME=    33858 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION