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                                   Copan Lake
                          MONTHLY LAKE REPORT
                                 APR 99


    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  710.05    43665
 1   710.06  710.09    43865      0      209   0.200     150   0.00  0.00
 2   710.13  710.12    44015      0      209   0.280     300   0.00  0.00
 3   710.11  710.17    44264      0      209   0.140     350   0.17  0.18
 4   710.14  710.13    44065      0      209   0.090     300   0.01  0.00
 5   710.06  710.13    44065      0      167   0.290     250   0.18  0.13

 6   710.16  710.14    44115      0      164   0.320     250   0.00  0.00
 7   710.12  709.91    42993      0      209   0.290     200   0.00  0.00
 8   710.03  710.12    44015      0      126   0.300     200   0.00  0.00
 9   710.13  710.17    44264      0        5   0.330     170   0.00  0.00
10   710.16  710.19    44364      0        5   0.280     100   0.00  0.00

11   710.22  710.22    44514      0        5   0.390     100   0.00  0.00
12   710.23  710.24    44614      0        5   0.250     100   0.00  0.00
13   710.20  710.33    45063      0        5   0.310     250   0.00  0.00
14   710.38  711.12    49040      0        5   0.130    2020   1.01  1.98
15   711.93  712.64    57238      0      682   0.060    4865   0.31  0.50

16   712.91  712.87    58516      0     2399   0.310    3075   0.00  0.00
17   712.73  712.33    55516      0     3420   0.200    1930   0.00  0.00
18   712.07  711.61    51625      0     3357   0.150    1450   0.00  0.00
19   711.33  710.75    47159      0     3280   0.350    1085   0.00  0.00
20   710.40  710.10    43915      0     2401   0.370     825   0.00  0.00

21   709.94  709.76    42288      0     1282   0.420     500   0.00  0.00
22   709.82  710.22    44514      0      429   0.270    1580   0.80  0.48
23   710.46  710.62    46510      0      271   0.190    1285   0.75  0.40
24   710.62  710.69    46860      0      515   0.050     700   0.00  0.14
25   711.03  713.14    60054      0      248   0.070    6900   1.60  0.94

26   714.05  715.66    75386      0        5   0.030    7750   1.24  0.79
27   716.28  717.26    86019      0        5   0.040    5400   0.74  0.69
28   717.59  717.89    90390      0      600   0.220    2820   0.00  0.00
29   717.93  717.91    90528      0     1546   0.080    1650   0.00  0.00
30   717.86  717.70    89072      0     2087   0.150    1415   0.00  0.00

TOTAL                             0    24061   6.560   47970   6.81  6.23
AVERAGE   711.81                  0      802            1599 NORMAL= 3.43

MAXIMUM   718.00       91153   DATE=29    TOP CONSERVATION POOL    710.00
MINIMUM   709.76       42288   DATE=21    TOP FLOOD POOL           732.00

                      INFLOW VOLUME=    95147 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION