                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                     F81D-R       ALHAMBRA WASH NEAR KLINGERMAN STREET                               RATING NO.   43-1
                                         MEAN DAILY DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR 1991

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1        1.2        1.2        1.1        1.1        1.1      243.0        3.4        1.1        1.2        2.6        1.2        1.1
    2        1.2        1.2        1.0        1.2        1.3        1.5         .8         .9        1.1        2.7        1.3        1.1
    3        1.1        1.2        1.0       75.1        1.2         .8         .9         .9        1.2        2.5        1.3        1.3
    4        1.1        1.1        1.0      136.0        1.3       38.5         .9         .9        1.3        2.4        1.2        1.2
    5        1.1        1.2         .9        7.5        1.4        2.3        1.4        1.0        1.1        2.4        1.1        1.3

 ------------------------------------------------------------------------------------------------------------------------------------------
   6         1.0        1.2        1.0        1.1        1.4         .9        1.0        1.1        2.0        2.5        1.0        1.1
   7         1.0        1.2        1.0        1.1        1.4         .9        1.0        1.1        2.0        2.5        1.0        1.1
   8         1.1        1.3        1.0        1.1        1.5         .7        1.0        1.1        2.5       10.2        1.2        1.1
   9         1.1        1.0         .9       39.6        1.4         .7        1.0        1.1        3.0        1.1        1.2        1.1
   10        1.1         .9        1.1        1.1        1.4         .6         .9        1.1        3.3        1.0        1.0        1.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   11        1.1         .9        1.1        1.1        1.5        2.5         .9        1.0        2.5        1.1        1.2        1.0
   12        1.1        1.0        2.6        1.0        1.5         .6         .9        1.2        2.7        1.1        1.2         .9
   13        1.1        1.0        1.0         .9        1.6       25.1        1.0        1.5        4.6        1.1        1.2        1.0
   14        1.2        1.1        1.0         .9        1.5         .9        1.1        1.2        3.4        1.0        1.2         .7
   15        1.2        1.1         .9        1.0        1.5        6.3        1.1        1.3        1.2        1.1        1.1         .7

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   16        1.2        1.1        1.0        1.0        1.4         .7        1.3        1.3        1.2        1.3        1.1         .6
   17        1.2        1.1         .9        1.1        1.5         .6        1.2        1.5        1.3        1.1        1.1         .6
   18        1.2         .9         .9        1.0        1.4      119.0        1.2        1.5        1.3        1.2        1.2        1.0
   19        1.2       13.5         .9        1.1        1.3      212.0        1.2        1.5        1.6        1.1        1.1         .9
   20        1.2       30.6         .9        1.1        1.3      132.0        1.9        1.5        3.6        1.0        1.0        1.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   21        1.1        1.1         .9        1.1        1.2        1.1        1.5        1.4        3.5        1.0        1.1        1.1
   22        1.2         .9        1.1        1.1        1.2         .9        1.2        1.3        3.1        1.2        1.1         .9
   23        1.3         .9        1.2        1.0        1.1         .8        1.1        1.3        3.0        1.1        1.1        1.0
   24        1.1         .9        1.1        1.1        1.1         .7        1.1        1.2        3.4        1.1        1.1         .9
   25        1.1        1.0        1.0         .9        1.2      120.0        1.1        1.1        3.1        1.1        1.1        1.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   26        1.1        2.9        1.0         .9        1.2      192.0         .8        1.1        2.7        1.2        1.2        1.0
   27        1.1         .9        1.2         .9      452.0       73.6         .8        1.2        3.1        1.2        1.2        1.0
   28        1.2         .9         .9        1.1      377.0        1.2         .8        1.2        2.7        1.2        1.2        6.0
   29        1.2         .9        1.1        1.0         .0         .9         .9        1.2        2.7        1.3        1.2         .9
   30        1.3        1.0        1.1        1.0         .0         .9        1.0        1.2        2.7        1.2        1.2         .9
   31        1.2         .0        1.2        1.1         .0         .8         .0        1.2         .0        1.3        1.2         .0

 ==========================================================================================================================================
 TOTAL      35.6       75.1       33.0      286.3      863.9    1,182.5       34.4       37.2        72.2       53.7       35.6      34.3
 MEAN        1.1        2.4        1.1        9.2       30.9       38.2        1.1        1.2        2.4        1.7        1.1        1.1
 MAX         1.3       30.6        2.6      136.0      452.0      243.0        3.4        1.5        4.6       10.2        1.3        6.0
 MIN         1.0         .9         .4         .9        1.1         .6         .8         .9        1.1        1.0        1.0         .6

 ANNUAL DATA
 WTR YEAR 1991 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                     5,441.9              2,743.6                          7.6                        452.0                           .6

 INSTANTANEOUS DATA
 INST_MAXFLOW    2,700.0      INST_MAXTIME  0315            INST_MAXDATE  03/01/91
 INST_MINFLOW         .6      INST_MINTIME  0545            INST_MINDATE  03/23/91

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