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                                   Cheney Lake
                          MONTHLY LAKE REPORT
                                 APR 09


    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 1422.18   172650
 1  1422.22 1422.30   173833      0       72   0.200     750   0.00  0.00
 2  1422.39 1422.31   173932      0      407   0.230     550   0.00  0.01
 3  1422.29 1422.25   173340      0      491   0.120     400   0.02  0.02
 4  1422.19 1422.33   174128      0      491   0.350     350   0.00  0.00
 5  1422.34 1422.20   172846      0      492   0.360     300   0.00  0.00

 6  1422.20 1422.08   171663      0      491   0.170     250   0.00  0.01
 7  1422.05 1421.99   170780      0      490   0.260     200   0.00  0.00
 8  1421.98 1421.90   169925      0      490   0.260     200   0.00  0.00
 9  1421.89 1421.95   170399      0      490   0.320     300   0.00  0.00
10  1421.92 1421.83   169259      0      398   0.220     400   0.19  0.44

11  1421.84 1421.84   169354      0      244   0.110     450   0.00  0.00
12  1421.85 1421.95   170399      0      245   0.220     850   0.09  0.03
13  1422.01 1422.03   171171      0      357   0.190     800   0.94  0.93
14  1422.05 1422.05   171368      0      490   0.080     700   0.02  0.00
15  1422.05 1422.01   170974      0      490   0.170     450   0.00  0.00

16  1422.03 1421.97   170590      0      490   0.360     400   0.00  0.00
17  1421.98 1421.95   170399      0      490   0.260     500   0.02  0.06
18  1421.94 1421.96   170495      0      490   0.120     600   0.02  0.17
19  1422.01 1421.91   170020      0      490   0.160     350   0.47  0.61
20  1421.90 1421.88   169735      0      490   0.190     500   0.00  0.00

21  1421.86 1421.84   169354      0      489   0.240     400   0.00  0.00
22  1421.83 1421.77   168690      0      489   0.250     330   0.00  0.00
23  1421.77 1421.71   168119      0      489   0.260     270   0.00  0.28
24  1421.66 1421.63   167359      0      397   0.270     170   0.00  0.00
25  1421.67 1421.71   168119      0       81   0.360     550   0.00  0.00

26  1421.68 1421.87   169640      0        0   0.190     850   0.00  0.00
27  1422.46 1422.87   179452      0        0   0.050    5050   3.10  2.04
28  1423.03 1423.22   182983      0        0   0.250    1850   0.02  0.00
29  1423.33 1423.56   186460      0        0   0.100    1870   0.36  0.42
30  1423.68 1424.21   193183      0        0   0.100    3450   0.02  0.11

TOTAL                             0    10532   6.420   24090   5.27  5.13
AVERAGE  1422.17                  0      351             803 NORMAL= 2.32

MAXIMUM  1424.21      193183   DATE=30    TOP CONSERVATION POOL   1421.60
MINIMUM  1421.60      167074   DATE=24    TOP FLOOD POOL          1429.00

WATER SUPPLY:  WITHDRAWN   2732 AC-FT

                      INFLOW VOLUME=    47782 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION