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                                    Keystone Lake
                          MONTHLY LAKE REPORT
                                 DEC 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  724.64   470764
 1   724.64  724.21   462078   7367     7367   0.060    3050   0.00  0.00
 2   724.11  723.85   455455   8138     8138   0.090    4850   0.00  0.05
 3   723.86  723.37   446672   8088     8088   0.100    3700   0.00  0.02
 4   723.35  722.77   436536   8158     8158   0.100    3100   0.00  0.00
 5   722.77  722.80   437042   3046     3046   0.070    3350   0.00  0.00

 6   722.94  722.91   438900   2904     2904   0.130    3850   0.00  0.00
 7   722.88  722.81   437211   3054     3054   0.000    2200   0.00  0.00
 8   722.83  722.93   439238   1996     1996   0.000    3000   0.00  0.01
 9   722.90  722.81   437211   2029     2029   0.010    1050   0.00  0.05
10   722.74  722.63   434170   4283     4283   0.060    2750   0.00  0.00

11   722.65  722.65   434509      0        0   0.050     250   0.00  0.00
12   722.77  723.00   440421      0        0   0.090    3000   0.00  0.00
13   723.14  723.35   446333      0        0   0.000    3000   0.00  0.00
14   723.48  723.23   444306   3913     3913   0.070    2900   0.00  0.00
15   723.21  723.17   443293   2429     2429   0.060    1950   0.00  0.00

16   723.11  723.23   444306   1013     1013   0.040    1570   0.00  0.00
17   723.23  723.29   445320   2475     2475   0.090    3040   0.00  0.00
18   723.38  723.56   450122    288      288   0.110    2750   0.00  0.14
19   723.67  723.83   455088      0        0   0.090    2510   0.00  0.00
20   723.89  724.07   459503      0        0   0.010    2500   0.00  0.00

21   724.02  724.12   460422    992      992   0.050    1510   0.00  0.00
22   724.19  724.31   463917      0        0   0.100    1760   0.00  0.00
23   724.32  724.31   463917   2454     2454   0.000    2460   0.00  0.01
24   724.40  724.58   469466   1479     1479   0.010    4300   0.00  0.01
25   724.66  724.55   468817   1454     1454   0.020    1280   0.00  0.03

26   724.59  724.58   469466   1462     1462   0.150    1800   0.00  0.01
27   724.65  724.66   471195   1467     1467   0.060    2300   0.00  0.04
28   724.71  724.64   470764   2217     2217   0.050    2000   0.00  0.01
29   724.61  724.52   468168   3446     3446   0.030    2150   0.00  0.03
30   724.49  724.33   464285   3938     3939   0.010    1775   0.00  0.04
31   724.44  724.48   467302   2450     2450   0.000    3990   0.00  0.08

TOTAL                         80540    80541   1.710   79695   0.00  0.53
AVERAGE   723.66               2598     2598            2571 NORMAL= 2.26

MAXIMUM   724.77      473576   DATE=28    TOP CONSERVATION POOL    723.00
MINIMUM   722.63      434170   DATE=11    TOP FLOOD POOL           754.00

                      INFLOW VOLUME=   158073 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION