                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                        F317-R       ARCADIA WASH BELOW GRAND AVENUE                               RATING NO.   57-1
                                         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         .4         .5         .5         .3         .1      173.0         .2         .4         .2         .7         .2        1.0
    2         .3         .6         .4         .4         .2         .6         .1         .3         .2         .3         .2        2.1
    3         .3         .8         .5       90.0         .2         .2         .1         .3         .2        1.3         .2        2.4
    4         .4         .5         .7      125.0         .2       35.7         .1         .3         .3         .5         .2        1.5
    5         .4         .5         .7        5.4         .2        2.2         .1         .3         .3         .4         .2        1.5

 ------------------------------------------------------------------------------------------------------------------------------------------
   6          .3         .6         .2         .3         .2         .1         .1         .2         .3         .5         .2        1.6
   7          .3         .6         .2         .3         .2         .1         .1         .2         .3         .5         .2        1.6
   8          .4         .8         .2         .2         .4         .1         .2         .3         .3        1.2         .2        1.3
   9          .3         .7         .2       41.0         .4         .1         .1         .3         .3         .5         .2        1.3
   10         .5         .6         .2        2.5         .4         .3         .1       12.4         .3         .5         .2        1.5

 ------------------------------------------------------------------------------------------------------------------------------------------
   11         .4         .6         .3         .6         .5        1.0         .2         .5         .3         .4        1.3        1.1
   12         .4         .5        4.7         .2         .5         .3         .1         .4         .3         .3        1.1        1.2
   13         .4         .6         .6         .2         .5       35.7         .2         .4         .4         .3        1.2        1.6
   14        3.1         .5         .5         .3         .6         .6         .2         .3         .4         .3        1.2        1.5
   15        2.3         .5         .4         .2         .6        3.2         .4         .3         .4         .3        1.2        1.4

 ------------------------------------------------------------------------------------------------------------------------------------------
   16         .3         .5         .4        1.1         .6         .2         .4         .3         .3         .3        1.2        1.5
   17         .3         .4         .3         .1         .6         .1         .3         .2         .4         .3        1.1        1.1
   18         .4         .5         .3         .1         .6       41.3         .3         .2         .3         .3        1.1        1.0
   19         .4       13.5         .3         .1         .5      136.0         .3         .2         .5         .3        1.1        1.0
   20         .4       25.6         .3         .1         .6       97.4         .9         .2         .5         .2         .9        1.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   21         .3         .2         .3         .1         .7         .2         .4         .2         .6         .2        1.0         .9
   22         .5         .2         .3         .1         .7         .1         .3         .2         .7         .2        1.1         .7
   23         .4         .2         .3         .1         .8         .1         .3         .2         .8         .3        1.1         .5
   24         .4         .2         .3         .1         .8         .1         .4         .2        1.0         .3        1.1         .5
   25         .4         .2         .2         .1         .8       90.7         .3         .2        1.3         .3        1.0         .8

 ------------------------------------------------------------------------------------------------------------------------------------------
   26         .4       10.9         .2         .1         .8      152.0         .3         .2        1.6         .2        1.0        1.4
   27         .5         .1         .3         .1      222.0       70.4         .3         .2        2.6         .3        1.1        1.6
   28         .5         .2         .3         .1      228.0         .3         .3         .2        3.4         .2        1.2       20.2
   29         .6         .3         .3         .1         .0         .1         .4         .2        2.0         .2        1.1        1.2
   30         .5         .5         .3         .1         .0         .2         .4         .3        1.5         .2        1.1         .8
   31         .6         .0         .4         .1         .0         .1         .0         .2         .0         .2        1.1         .0

 ==========================================================================================================================================
 TOTAL      17.1       62.6       15.2      269.4      462.7      842.5        7.9       20.4        22.0       12.0       25.3      56.6
 MEAN         .6        2.1         .5        8.7       16.5       27.2         .3         .7         .7         .4         .8        1.9
 MAX         3.1       25.6        4.7      125.0      228.0      173.0         .9       12.4        3.4        1.3        1.3       20.2
 MIN          .3         .1         .2         .1         .1         .1         .1         .2         .2         .2         .2         .7

 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
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                     3,598.4              1,814.2                          5.0                        228.0                           .1

 INSTANTANEOUS DATA
 INST_MAXFLOW    2,120.0      INST_MAXTIME  0115            INST_MAXDATE  02/28/91
 INST_MINFLOW         .0      INST_MINTIME  0130            INST_MINDATE  01/18/91

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