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                                   Copan Lake
                          MONTHLY LAKE REPORT
                                 MAY 03


    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  711.16    42100
 1   711.10  711.42    43302      0      648   0.290    1265   0.16  1.67
 2   711.69  712.19    47063      0      658   0.080    2500   0.00  0.00
 3   712.33  712.46    48598      0      667   0.160    1500   0.00  0.00
 4   712.49  712.46    48598      0      970   0.170    1000   0.00  0.00
 5   712.39  712.01    46040      0     1527   0.200     280   0.44  0.06

 6   711.78  711.13    41961      0     2280   0.310     250   0.00  0.00
 7   710.79  710.54    39234      0     1505   0.210     165   0.00  0.00
 8   710.45  710.50    39049      0      242   0.260     150   0.04  0.11
 9   710.56  710.52    39142      0       52   0.070     130   0.00  0.08
10   710.51  710.63    39650      0       52   0.220     100   0.03  0.07

11   710.59  710.58    39419      0       52   0.260      80   0.04  0.00
12   710.57  710.57    39373      0       52   0.260      70   0.00  0.00
13   710.56  710.80    40436      0       52   0.310     600   0.00  0.00
14   710.96  710.93    41036      0      608   0.000     930   1.30  1.40
15   710.85  710.72    40066      0      923   0.130     440   0.00  0.01

16   710.90  713.29    53317      0      487   0.070    7170   1.89  1.54
17   715.73  718.87    89260      0      706   0.020   19000   1.76  2.48
18   719.82  720.64   102867      0     2317   0.130    9200   0.00  0.01
19   720.84  721.02   106145      0     3036   0.220    4700   0.00  0.00
20   721.19  721.13   107093      0     3336   0.170    3870   1.48  0.41

21   721.03  720.76   103902      0     3492   0.220    1930   0.00  0.00
22   720.58  720.18    98899      0     3459   0.190    1000   0.00  0.00
23   719.94  719.46    93482      0     3414   0.220     710   0.00  0.00
24   719.25  719.46    93482      0     2826   0.140    2850   0.00  0.03
25   719.61  719.70    95199      0     2418   0.090    3300   1.50  1.28

26   719.71  719.55    94126      0     2602   0.120    2110   0.00  0.00
27   719.42  719.02    90333      0     3336   0.230    1480   0.00  0.00
28   718.76  718.28    85039      0     3439   0.260     810   0.00  0.00
29   717.98  717.39    78671      0     3380   0.200     230   0.00  0.00
30   717.09  716.45    71944      0     3305   0.310      50   0.00  0.00
31   716.14  715.45    65597      0     3224   0.340      50   0.00  0.00

TOTAL                             0    55065   5.860   67920   8.64  9.15
AVERAGE   715.10                  0     1776            2191 NORMAL= 5.00

MAXIMUM   721.22      107869   DATE=20    TOP CONSERVATION POOL    710.00
MINIMUM   710.39       38541   DATE= 8    TOP FLOOD POOL           732.00

                      INFLOW VOLUME=   134717 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION