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                                   Copan Lake
                          MONTHLY LAKE REPORT
                                 MAY 09


    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  720.34   100279
 1   720.84  722.33   117445      0     1248   0.050    9900   0.31  0.19
 2   722.68  723.39   126588      0     1282   0.020    5900   1.47  0.51
 3   723.70  724.20   133916      0     1303   0.080    5000   0.46  0.53
 4   724.40  724.61   138149      0     1700   0.080    3860   0.00  0.00
 5   724.67  724.86   140731      0     1918   0.090    3200   0.00  0.00

 6   724.98  725.13   143520      0     1928   0.010    3400   0.46  0.36
 7   725.17  725.15   143726      0     1932   0.000    2100   0.00  0.00
 8   725.20  725.62   148580      0     1938   0.230    4450   0.56  0.69
 9   725.67  725.66   148993      0     1948   0.200    2200   0.32  0.04
10   725.65  725.49   147237      0     2323   0.130    1450   0.00  0.00

11   725.37  725.07   142900      0     2831   0.080     700   0.06  0.05
12   724.87  724.72   139285      0     3138   0.200    2000   0.00  0.00
13   724.93  725.51   147444      0     2382   0.060    6500   0.20  1.22
14   725.70  725.90   151472      0     1574   0.250    3600   0.41  0.44
15   725.97  726.09   153434      0     1958   0.190    3000   0.00  0.00

16   726.13  726.00   152504      0     2625   0.270    2200   0.48  0.49
17   725.89  725.64   148786      0     3189   0.220    1400   0.00  0.00
18   725.47  725.17   143932      0     3167   0.250     800   0.00  0.00
19   725.00  724.66   138666      0     3143   0.270     600   0.00  0.00
20   724.48  724.07   132573      0     3112   0.290     300   0.00  0.00

21   723.89  723.46   127192      0     3079   0.290     200   0.00  0.00
22   723.25  722.81   121585      0     3044   0.240     300   0.00  0.00
23   722.57  722.11   115547      0     3006   0.250     150   0.00  0.00
24   721.89  721.40   109423      0     2968   0.260     100   0.00  0.00
25   721.20  720.67   103125      0     2928   0.250      50   0.00  0.00

26   720.41  719.90    96631      0     2886   0.140      50   0.00  0.04
27   719.69  719.23    91837      0     2468   0.230      50   0.00  0.00
28   719.03  718.62    87472      0     2150   0.060      50   0.00  0.00
29   718.41  718.01    83107      0     2118   0.180      50   0.00  0.00
30   717.80  717.35    78384      0     2085   0.330      50   0.00  0.00
31   717.15  716.70    73733      0     2051   0.360      50   0.00  0.00

TOTAL                             0    73422   5.560   63660   4.73  4.56
AVERAGE   723.21                  0     2368            2054 NORMAL= 5.00

MAXIMUM   726.16      154156   DATE=16    TOP CONSERVATION POOL    710.00
MINIMUM   716.70       73733   DATE=31    TOP FLOOD POOL           732.00

                      INFLOW VOLUME=   126268 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION