                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                          F82C-R       RUBIO WASH AT GLENDON WAY                               RATING NO.   43-01
                                         MEAN DAILY DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR 1990

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1        2.5        1.9        2.7        3.8        6.3        4.7         .5        2.5         .6         .4         .6         .4
    2        2.7        2.4        2.4       24.6        4.7        4.7         .5        1.4         .5         .5         .5         .4
    3        2.7        2.5        2.2        3.1        2.5        4.9         .4         .7         .4         .5         .7         .4
    4        2.8        1.9        2.4        3.8       44.3        5.3       13.8        2.3         .5        1.0         .6         .4
    5        2.8        1.9        2.6        4.2        5.3        4.8        1.8        3.4         .4        1.3         .6         .5

 ------------------------------------------------------------------------------------------------------------------------------------------
   6         2.6        1.9        2.4        4.3        5.3        4.0        2.6         .3         .3         .6        3.8         .5
   7         2.6        1.9        2.4        4.3        5.3        4.0        2.6         .3         .3         .6        3.8         .5
   8         2.5        1.9        2.1        3.4        6.3        5.6         .4         .4         .5         .6         .6         .4
   9         2.5        1.9        2.0        4.3        5.3        5.4        3.6         .4         .4         .6         .5         .4
   10        2.5        1.5        2.4        4.4        5.1        6.2        3.8         .4         .4         .6         .8         .4

 ------------------------------------------------------------------------------------------------------------------------------------------
   11        2.5        1.1        2.6        3.7        4.7       14.9        3.8         .4         .4         .4         .6         .5
   12        2.5        1.6        2.6        9.8        5.0       16.2        4.4         .4         .5         .4         .6         .7
   13        3.1        1.9        3.5      133.0        9.6        4.1         .6         .3         .4         .5         .8        1.2
   14        2.8        1.9        2.7       23.5        6.8        2.6        3.6         .5         .3         .7        1.4         .6
   15        2.5        1.9        2.7        5.4        4.7        1.5         .5         .4         .7         .6        2.5         .6

 ------------------------------------------------------------------------------------------------------------------------------------------
   16        2.5        1.6        2.5       81.2       27.2         .4       21.3         .6        1.7        1.0         .6         .5
   17        2.5        1.7        2.6        6.7      341.0         .4       24.8         .5        1.3         .5         .5         .8
   18        2.5        1.7        2.6        3.6       22.1         .6         .7         .8         .4         .6         .5         .7
   19        2.5        1.4        3.1        1.9        5.0         .5         .3         .7         .9         .6         .5        1.2
   20        2.7        1.5        2.8        2.0        5.1         .4         .4        1.0         .6         .7         .8         .4

 ------------------------------------------------------------------------------------------------------------------------------------------
   21        3.8        1.4        2.7        1.9        3.4         .4         .4         .8         .4         .8        1.9         .7
   22       19.7        1.5        2.6        1.9        3.4         .5         .7         .4         .4         .4         .6         .5
   23        4.0        1.4        2.3        1.9        3.5         .5       13.2         .6         .5         .5        1.1         .5
   24        2.4        1.4        2.3        2.0        3.7         .5         .6         .8         .4         .5         .7         .8
   25        5.8        1.4        2.5        1.9        3.6         .5         .4         .7         .4         .6         .5         .5

 ------------------------------------------------------------------------------------------------------------------------------------------
   26        1.9       29.0        2.5        2.0        4.0         .5         .4         .4         .3         .5         .5         .5
   27        1.9        2.6        3.7        2.2        4.0         .5         .4         .5         .3         .6         .8         .5
   28        2.1        2.5        5.5        1.9        4.2         .6         .4      117.0         .5         .6         .6        1.9
   29        1.9        2.6        4.6        2.4         .0         .6         .3        1.0         .3         .5         .7        2.5
   30        1.9        2.5        4.7       21.3         .0         .5        9.8         .9         .5         .6         .6         .5
   31        1.9         .0        3.9        3.7         .0         .6         .0         .7         .0         .8         .6         .0

 ==========================================================================================================================================
 TOTAL      99.6       82.3       88.4      372.7      553.7       97.9      115.6      144.2        15.6       19.7       27.0      20.4
 MEAN        3.2        2.7        2.9       12.0       19.8        3.2        3.9        4.7         .5         .6         .9         .7
 MAX        19.7       29.0        5.5      133.0      341.0       16.2       24.8      117.0        1.7        1.3        3.8        2.5
 MIN         1.9        1.1        2.0        1.9        2.5         .4         .3         .3         .3         .4         .5         .4

 ANNUAL DATA
 WTR YEAR 1990 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                     3,248.9              1,638.0                          4.5                        341.0                           .3

 INSTANTANEOUS DATA
 INST_MAXFLOW    1,560.0      INST_MAXTIME  2200            INST_MAXDATE  01/16/90
 INST_MINFLOW         .1      INST_MINTIME  0000            INST_MINDATE

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