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                                   Birch Lake
                          MONTHLY LAKE REPORT
                                 APR 13


    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  742.29    10377
 1   742.22  742.28    10369      0        1   0.180       0   0.00  0.00
 2   742.25  742.42    10481      0        1   0.180      20   0.05  0.09
 3   742.24  742.42    10481      0        4   0.020      40   0.57  0.69
 4   742.51  742.60    10626      0        6   0.020      80   0.46  0.55
 5   742.59  742.55    10586      0        6   0.130       0   0.00  0.00

 6   742.51  742.55    10586      0        6   0.310       0   0.00  0.00
 7   742.59  742.56    10594      0        6   0.250       0   0.00  0.00
 8   742.53  742.52    10562      0        6   0.120       0   0.00  0.01
 9   742.48  742.38    10449      0        6   0.130       0   0.01  0.01
10   742.40  742.53    10570      0        6   0.090      60   0.11  0.13

11   742.55  742.43    10489      0        6   0.020      10   0.19  0.32
12   742.45  742.47    10521      0        6   0.160       0   0.00  0.00
13   742.43  742.25    10345      0        6   0.210       0   0.00  0.00
14   742.36  742.31    10393      0        6   0.320       0   0.00  0.00
15   742.36  742.33    10409      0        6   0.390       0   0.00  0.00

16   742.34  742.23    10329      0        6   0.210       0   0.00  0.00
17   742.37  742.40    10465      0        6   0.030      80   0.00  0.00
18   742.91  743.12    11047      0        6   0.060     260   1.32  1.31
19   743.18  743.12    11047      0        6   0.060      10   0.00  0.00
20   743.19  743.22    11131      0        3   0.230       5   0.00  0.00

21   743.22  743.02    10964      0        3   0.250       0   0.00  0.00
22   743.02  742.97    10923      0        6   0.280       0   0.01  0.01
23   743.19  743.11    11039      0        6   0.200       0   0.39  0.31
24   743.06  743.08    11014      0        6   0.010       0   0.03  0.03
25   742.97  743.04    10980      0        6   0.220       0   0.00  0.00

26   743.00  743.18    11098      0        6   0.320      60   0.00  0.02
27   743.00  743.18    11098      0        6   0.000      10   0.76  0.67
28   742.97  743.03    10972      0        6   0.030       0   0.00  0.02
29   743.05  743.18    11098      0        6   0.310       0   0.00  0.00
30   742.98  743.12    11047      0        6   0.460       0   0.00  0.00

TOTAL                             0      166   5.200     635   3.90  4.17
AVERAGE   742.72                  0        6              21 NORMAL= 3.34

MAXIMUM   743.22       11131   DATE=21    TOP CONSERVATION POOL    750.50
MINIMUM   742.13       10248   DATE=24    TOP FLOOD POOL           774.00

                      INFLOW VOLUME=     1260 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION