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                                   Copan Lake
                          MONTHLY LAKE REPORT
                                 APR 04


    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  713.12    52350
 1   713.04  712.76    50304      0     1194   0.150     190   0.00  0.00
 2   712.60  712.12    46665      0     1591   0.180     100   0.00  0.00
 3   711.88  711.34    42238      0     1776   0.220      50   0.00  0.00
 4   711.13  710.78    39061      0     1340   0.260      25   0.00  0.00
 5   710.66  710.42    37017      0      860   0.210      25   0.00  0.00

 6   710.30  710.17    35599      0      655   0.140      25   0.00  0.00
 7   710.11  710.14    35429      0      176   0.130      25   0.00  0.01
 8   710.20  710.19    35712      0        5   0.150      25   0.00  0.00
 9   710.22  710.32    36450      0        5   0.250     200   0.00  0.00
10   710.42  710.43    37074      0        5   0.010     200   0.80  0.45

11   710.47  710.51    37528      0        5   0.000     150   0.26  0.30
12   710.55  710.56    37812      0        5   0.170     150   0.00  0.00
13   710.59  710.59    37982      0       81   0.170     150   0.00  0.00
14   710.58  710.56    37812      0      149   0.140     150   0.00  0.00
15   710.57  710.56    37812      0      149   0.290     150   0.00  0.00

16   710.58  710.57    37869      0      149   0.280     150   0.00  0.00
17   710.57  710.49    37415      0      149   0.290     100   0.00  0.00
18   710.52  710.47    37301      0      149   0.240     100   0.00  0.00
19   710.53  710.49    37415      0      189   0.120     250   0.00  0.00
20   710.52  710.73    38777      0      211   0.050     400   0.94  0.61

21   710.91  711.07    40706      0      212   0.060    1000   0.11  0.28
22   711.11  711.20    41444      0      311   0.230     700   0.37  0.33
23   711.20  711.34    42238      0      277   0.040     670   0.06  0.04
24   711.73  712.76    50304      0      744   0.000    4800   0.49  1.56
25   713.40  714.57    60594      0     1224   0.050    6500   0.00  0.01

26   715.02  715.56    66223      0     1377   0.210    4250   0.00  0.02
27   715.72  715.73    67189      0     2087   0.230    2600   0.00  0.00
28   715.70  715.54    66109      0     2276   0.280    1800   0.00  0.00
29   715.47  715.22    64290      0     2263   0.360    1350   0.13  0.04
30   715.10  714.88    62357      0     2242   0.050    1285   0.16  0.16

TOTAL                             0    21857   4.960   27570   3.32  3.81
AVERAGE   711.74                  0      729             919 NORMAL= 3.43

MAXIMUM   715.74       67246   DATE=27    TOP CONSERVATION POOL    710.00
MINIMUM   710.10       35201   DATE= 7    TOP FLOOD POOL           732.00

                      INFLOW VOLUME=    54684 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION