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                                   Birch Lake
                          MONTHLY LAKE REPORT
                                 DEC 98


    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  750.67    19419
 1   750.67  750.70    19454      0        1   0.160      20   0.00  0.00
 2   750.71  750.72    19476      0        1   0.150      20   0.00  0.00
 3   750.72  750.76    19522      0        1   0.130      25   0.00  0.00
 4   750.83  750.96    19751      0        1   0.090     120   0.41  0.38
 5   750.98  751.02    19821      0        1   0.090      40   0.00  0.00

 6   751.04  751.73    20659      0        1   0.170     430   0.00  0.00
 7   751.80  751.73    20659      0       71   0.030      70   0.44  0.57
 8   751.71  751.53    20423      0      139   0.030      20   0.00  0.00
 9   751.48  751.30    20151      0      139   0.060      10   0.00  0.00
10   751.24  751.05    19856      0      138   0.100      10   0.01  0.00

11   751.00  750.88    19660      0      101   0.080       5   0.00  0.00
12   750.86  750.77    19534      0       70   0.100       5   0.00  0.00
13   750.74  750.67    19419      0       69   0.070       5   0.00  0.00
14   750.64  750.55    19282      0       69   0.080       5   0.00  0.00
15   750.52  750.52    19247      0       28   0.090       5   0.00  0.00

16   750.51  750.51    19236      0        1   0.110       5   0.00  0.00
17   750.51  750.51    19236      0        1   0.140       5   0.00  0.00
18   750.51  750.60    19339      0        1   0.180      50   0.00  0.00
19   750.73  750.80    19568      0        1   0.040     120   0.55  0.62
20   750.82  750.87    19648      0        1   0.050      40   0.00  0.00

21   750.87  750.85    19625      0        1   0.010       5   0.05  0.03
22   750.88  750.88    19660      0        1   0.020       5   0.00  0.00
23   750.88  750.87    19648      0        1   0.050       0   0.00  0.00
24   750.87  750.88    19660      0        1   0.030       5   0.00  0.00
25   750.87  750.89    19671      0        1   0.040       5   0.00  0.00

26   750.89  750.88    19660      0        1   0.070       5   0.00  0.00
27   750.88  750.88    19660      0        1   0.090       5   0.00  0.00
28   750.88  750.88    19660      0        1   0.060       5   0.00  0.00
29   750.88  750.89    19671      0        1   0.080       5   0.00  0.00
30   750.88  750.88    19660      0        1   0.120       0   0.00  0.00
31   750.89  750.87    19648      0        1   0.100       0   0.00  0.00

TOTAL                             0      848   2.620    1050   1.46  1.60
AVERAGE   750.90                  0       27              34 NORMAL= 1.47

MAXIMUM   751.82       20765   DATE= 7    TOP CONSERVATION POOL    750.50
MINIMUM   750.50       19225   DATE=17    TOP FLOOD POOL           774.00

                      INFLOW VOLUME=     2083 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION