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                                   Birch Lake
                          MONTHLY LAKE REPORT
                                 APR 08


    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  757.50    28092
 1   757.51  757.32    27840      0      227   0.110     100   0.82  1.07
 2   757.20  756.93    27299      0      293   0.210      50   0.00  0.00
 3   756.83  756.59    26838      0      292   0.140      25   0.14  0.19
 4   756.46  756.17    26268      0      291   0.050      10   0.00  0.01
 5   756.04  755.74    25696      0      290   0.170      10   0.00  0.00

 6   755.61  755.30    25116      0      289   0.280       5   0.00  0.00
 7   755.14  754.82    24490      0      287   0.270      30   0.00  0.00
 8   754.85  754.97    24683      0      287   0.200     380   0.84  0.74
 9   754.84  757.40    27952      0      203   0.080    1500   0.11  0.10
10   760.76  761.67    34428      0        1   0.010    2700   3.40  3.20

11   761.70  761.73    34526      0        1   0.250      60   0.00  0.00
12   761.77  761.79    34625      0        1   0.160      60   0.00  0.00
13   761.78  761.48    34116      0      201   0.220      30   0.01  0.00
14   761.30  760.93    33219      0      383   0.140      20   0.00  0.00
15   760.75  760.35    32304      0      381   0.220      10   0.00  0.00

16   760.16  759.80    31450      0      379   0.480       0   0.00  0.00
17   759.60  759.27    30649      0      377   0.300       0   0.00  0.00
18   759.08  758.70    29805      0      375   0.040       0   0.38  0.23
19   758.48  758.08    28905      0      373   0.130       0   0.00  0.00
20   757.89  757.47    28050      0      370   0.260       0   0.00  0.00

21   757.28  756.86    27204      0      368   0.400       0   0.00  0.00
22   756.64  756.24    26363      0      365   0.210       0   0.00  0.00
23   756.03  755.71    25656      0      362   0.090      50   0.00  0.00
24   755.71  755.37    25208      0      361   0.080     100   1.64  1.01
25   755.17  754.77    24426      0      359   0.180      30   0.07  0.06

26   754.56  754.13    23607      0      356   0.140      20   0.01  0.01
27   753.92  753.46    22766      0      353   0.240      10   0.04  0.04
28   753.23  752.77    21912      0      350   0.170       0   0.00  0.00
29   752.55  752.08    21075      0      347   0.270       0   0.00  0.00
30   751.85  751.39    20258      0      344   0.430       0   0.00  0.00

TOTAL                             0     8868   5.930    5200   7.46  6.66
AVERAGE   756.98                  0      296             173 NORMAL= 3.34

MAXIMUM   761.79       34625   DATE=12    TOP CONSERVATION POOL    750.50
MINIMUM   751.39       20258   DATE=30    TOP FLOOD POOL           774.00

                      INFLOW VOLUME=    10314 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION