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                                   Birch Lake
                          MONTHLY LAKE REPORT
                                 APR 06


    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  744.51    13033
 1   744.50  744.58    13098      0        1   0.260      30   0.00  0.00
 2   744.59  744.56    13079      0        1   0.260      20   0.72  0.65
 3   744.56  744.56    13079      0        1   0.340      15   0.00  0.00
 4   744.54  744.54    13061      0        1   0.190      10   0.00  0.00
 5   744.53  744.65    13163      0        1   0.250       5   0.00  0.00

 6   744.53  744.54    13061      0        1   0.380       4   0.00  0.00
 7   744.52  744.52    13042      0        1   0.280       3   0.14  0.12
 8   744.48  744.49    13015      0        1   0.190       2   0.00  0.00
 9   744.48  744.48    13006      0        1   0.220       1   0.00  0.00
10   744.47  744.46    12987      0        1   0.320       0   0.00  0.00

11   744.42  744.41    12941      0        1   0.460       0   0.00  0.00
12   744.44  744.42    12950      0        1   0.220       0   0.00  0.00
13   744.41  744.41    12941      0        1   0.280       0   0.00  0.00
14   744.41  744.39    12922      0        1   0.440       0   0.00  0.00
15   744.39  744.40    12932      0        1   0.350       0   0.00  0.00

16   744.39  744.38    12913      0        1   0.340       0   0.00  0.00
17   744.37  744.34    12876      0        1   0.350       0   0.00  0.00
18   744.35  744.33    12867      0        1   0.420       0   0.00  0.00
19   744.32  744.30    12839      0        1   0.380       0   0.00  0.00
20   744.30  744.28    12821      0        1   0.290       0   0.00  0.04

21   744.27  744.26    12802      0        1   0.260       0   0.00  0.00
22   744.26  744.24    12784      0        1   0.320       0   0.00  0.00
23   744.22  744.22    12765      0        1   0.410       0   0.00  0.00
24   744.22  745.43    13898      0        1   0.330     500   0.00  0.01
25   745.94  745.99    14434      0        1   0.050     250   3.73  3.07

26   745.98  745.97    14415      0        1   0.050     100   0.00  0.00
27   745.97  745.96    14406      0        1   0.120      50   0.00  0.00
28   745.97  746.93    15369      0        1   0.290     400   0.00  0.00
29   747.54  748.50    17008      0        1   0.000     850   2.42  2.12
30   748.65  748.80    17329      0        1   0.020     175   0.75  0.68

TOTAL                             0       29   8.070    2415   7.76  6.69
AVERAGE   744.98                  0        1              81 NORMAL= 3.34

MAXIMUM   748.80       17329   DATE=30    TOP CONSERVATION POOL    750.50
MINIMUM   744.20       12747   DATE=23    TOP FLOOD POOL           774.00

                      INFLOW VOLUME=     4790 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION