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                                   Birch Lake
                          MONTHLY LAKE REPORT
                                 DEC 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  748.66    17179
 1   748.66  748.64    17157      0        1   0.250       0   0.00  0.00
 2   748.64  748.73    17254      0        1   0.340      50   0.00  0.00
 3   748.71  748.71    17232      0        1   0.120       5   0.92  0.76
 4   748.87  749.71    18330      0        1   0.140     550   0.83  1.34
 5   749.80  749.88    18519      0        1   0.020     100   0.58  0.65

 6   749.89  749.90    18541      0        1   0.060      10   0.00  0.00
 7   749.91  749.90    18541      0        1   0.160      10   0.00  0.00
 8   749.92  749.94    18585      0        1   0.170      25   0.00  0.00
 9   750.05  751.16    19986      0        1   0.030     700   0.92  1.10
10   751.31  751.40    20269      0        1   0.040     150   0.62  0.53

11   751.44  751.44    20317      0        1   0.080      50   0.00  0.00
12   751.46  751.49    20376      0        1   0.010      35   0.00  0.00
13   751.50  751.50    20388      0        1   0.050      10   0.00  0.00
14   751.50  751.40    20269      0       74   0.090      10   0.00  0.00
15   751.33  751.16    19986      0      138   0.430       5   0.00  0.00

16   751.10  750.95    19740      0      138   0.120       5   0.00  0.00
17   750.89  750.81    19579      0       87   0.120       5   0.00  0.00
18   750.78  750.75    19511      0       35   0.100       5   0.00  0.00
19   750.72  750.69    19442      0       35   0.040       5   0.00  0.00
20   750.65  750.60    19339      0       35   0.040       1   0.00  0.00

21   750.58  750.54    19270      0       35   0.090       1   0.00  0.00
22   750.50  750.48    19202      0       35   0.090       1   0.00  0.00
23   750.44  750.43    19144      0       12   0.050       0   0.00  0.00
24   750.44  750.42    19133      0        1   0.110       0   0.00  0.00
25   750.42  750.43    19144      0        1   0.070       0   0.00  0.00

26   750.42  750.40    19110      0        1   0.100       0   0.00  0.00
27   750.41  750.41    19121      0        1   0.240       0   0.00  0.00
28   750.40  750.39    19099      0        1   0.090       0   0.00  0.00
29   750.39  750.39    19099      0        1   0.140       0   0.00  0.00
30   750.37  750.37    19076      0        1   0.240       0   0.00  0.00
31   750.37  750.36    19064      0        1   0.140       0   0.00  0.00

TOTAL                             0      649   3.770    1733   3.87  4.38
AVERAGE   750.43                  0       21              56 NORMAL= 1.47

MAXIMUM   751.52       20411   DATE=14    TOP CONSERVATION POOL    750.50
MINIMUM   748.64       17157   DATE= 2    TOP FLOOD POOL           774.00

                      INFLOW VOLUME=     3437 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION