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                                   Birch Lake
                          MONTHLY LAKE REPORT
                                 DEC 97


    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  749.93    18574
 1   749.94  749.95    18597      0        1   0.056      10   0.00  0.00
 2   749.94  749.98    18630      0        1   0.020      20   0.00  0.01
 3   750.04  750.12    18789      0        1   0.000      80   0.49  0.51
 4   750.13  750.14    18812      0        1   0.020      20   0.00  0.00
 5   750.13  750.15    18824      0        1   0.112      10   0.00  0.00

 6   750.16  750.15    18824      0        1   0.080      10   0.00  0.00
 7   750.15  750.19    18870      0        1   0.060      20   0.00  0.00
 8   750.21  750.37    19076      0        1   0.020     110   0.43  0.46
 9   750.38  750.45    19167      0        1   0.000      40   0.03  0.05
10   750.46  750.51    19236      0        1   0.040      30   0.00  0.06

11   750.52  750.53    19259      0        1   0.040      20   0.00  0.00
12   750.55  750.57    19305      0        1   0.060      20   0.00  0.03
13   750.55  750.57    19305      0        1   0.020      10   0.00  0.00
14   750.57  750.57    19305      0        1   0.060      10   0.00  0.00
15   750.58  750.57    19305      0        1   0.070       5   0.00  0.00

16   750.57  750.58    19316      0        1   0.150       5   0.00  0.00
17   750.58  750.58    19316      0        1   0.100       5   0.00  0.00
18   750.59  750.57    19305      0        1   0.110       5   0.00  0.00
19   750.58  750.58    19316      0        1   0.171       5   0.00  0.00
20   750.58  750.58    19316      0        1   0.160       5   0.00  0.00

21   750.65  751.28    20128      0        1   0.040     410   0.50  0.48
22   751.37  751.46    20340      0       33   0.010     140   0.57  0.55
23   751.46  752.06    21051      0       70   0.010     430   0.00  0.00
24   753.93  754.61    24221      0       71   0.010    1450   1.64  1.58
25   754.65  754.67    24298      0       72   0.020     100   0.00  0.10

26   754.69  754.13    23607      0      347   0.020       5   0.00  0.00
27   753.86  753.26    22516      0      491   0.060       5   0.00  0.00
28   752.98  752.41    21475      0      485   0.090       5   0.00  0.00
29   752.23  751.52    20411      0      479   0.050       5   0.12  0.13
30   751.33  750.76    19522      0      384   0.090       5   0.00  0.00
31   750.65  750.56    19293      0      111   0.130       5   0.00  0.00

TOTAL                             0     2563   1.879    3000   3.78  3.96
AVERAGE   751.11                  0       83              97 NORMAL= 1.47

MAXIMUM   754.69       24324   DATE=26    TOP CONSERVATION POOL    750.50
MINIMUM   749.93       18574   DATE= 1    TOP FLOOD POOL           774.00

                      INFLOW VOLUME=     5950 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION