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                                   Copan Lake
                          MONTHLY LAKE REPORT
                                 MAY 98


    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  715.52    74493
 1   715.49  715.14    72068      0     2440   0.050    1270   0.00  0.00
 2   714.91  714.45    67817      0     3004   0.270     900   0.05  0.01
 3   714.18  713.63    62912      0     2944   0.220     525   0.00  0.06
 4   713.34  712.75    57849      0     2875   0.300     375   0.00  0.00
 5   712.46  711.80    52627      0     2876   0.310     285   0.00  0.00

 6   711.49  710.95    48158      0     2552   0.250     320   0.00  0.01
 7   710.69  710.48    45812      0     1408   0.140     260   0.17  0.10
 8   710.47  710.34    45113      0      512   0.230     200   0.00  0.11
 9   710.31  710.40    45413      0      511   0.290     675   0.00  0.03
10   710.48  710.52    46011      0      513   0.100     850   0.65  0.70

11   710.53  710.51    45961      0      514   0.240     550   0.00  0.00
12   710.52  710.48    45812      0      513   0.390     485   0.00  0.00
13   710.44  710.37    45263      0      512   0.330     300   0.00  0.00
14   710.31  710.22    44514      0      510   0.380     170   0.00  0.00
15   710.11  710.20    44414      0      340   0.270     330   0.00  0.02

16   710.20  710.21    44464      0      210   0.360     290   0.62  0.34
17   710.20  710.20    44414      0      210   0.360     230   0.00  0.00
18   710.16  710.15    44165      0      209   0.360     125   0.00  0.00
19   710.14  710.13    44065      0      209   0.280     180   0.00  0.00
20   710.13  710.09    43865      0      209   0.170     150   0.00  0.00

21   710.09  710.03    43566      0      209   0.270     140   0.00  0.00
22   710.03  710.01    43466      0      173   0.300     120   0.00  0.00
23   709.99  710.00    43416      0      107   0.230     110   0.00  0.00
24   709.98  710.22    44514      0      107   0.220     700   0.00  0.00
25   710.06  710.23    44564      0      107   0.280     160   2.09  1.30

26   710.32  710.42    45512      0      108   0.200     610   0.25  0.01
27   710.43  710.38    45313      0      296   0.180     270   0.71  0.15
28   710.36  710.30    44913      0      424   0.210     230   0.00  0.01
29   710.28  710.23    44564      0      292   0.300     160   0.00  0.00
30   710.20  710.16    44214      0      210   0.310     125   0.00  0.00
31   710.16  710.11    43965      0      209   0.420     115   0.00  0.00

TOTAL                             0    25312   8.220   11210   4.54  2.85
AVERAGE   710.81                  0      817             362 NORMAL= 5.00

MAXIMUM   715.52       74493   DATE= 1    TOP CONSERVATION POOL    710.00
MINIMUM   709.90       42946   DATE=22    TOP FLOOD POOL           732.00

                      INFLOW VOLUME=    22235 AC-FT



REPORT IS SUBJECT TO CHANGE AND/OR REVISION