                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                       F304-R       WALNUT CREEK ABOVE PUENTE AVENUE                               RATING NO.   67-I
                                         MEAN DAILY DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR 1987

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1         .1         .4         .1         .1        1.2         .6         .4         .4         .6        1.2         .4         .2
    2       67.7         .6         .1         .1         .9         .4         .4         .6         .4        1.6         .4         .4
    3        1.6         .9         .1         .1         .1         .2        1.2         .4         .4         .4         .4         .2
    4         .1         .6         .1      693.0         .2         .2        2.1         .4         .4         .4         .9         .2
    5        2.1         .4         .9       34.9         .2        6.8        2.1         .4         .4         .2        2.1         .2

 ------------------------------------------------------------------------------------------------------------------------------------------
   6          .1         .4       27.4       26.4         .2       33.9         .4         .4        1.2         .2        1.6         .2
   7          .1         .4       27.4       26.4         .2       33.9         .4         .4        1.2         .2        1.6         .2
   8          .1         .4         .1         .2        2.1         .4         .4         .6         .2         .4         .4         .4
   9         4.0         .2         .6         .4       14.5         .4         .6         .6         .2         .4         .4         .2
   10         .4         .2         .2         .0        4.0         .4         .4         .4         .2         .4         .4         .2

 ------------------------------------------------------------------------------------------------------------------------------------------
   11         .2         .1         .2         .0        4.0         .2         .6         .4         .2         .4         .4         .2
   12         .4         .4         .2         .0        2.7         .2         .6         .4         .2         .4         .4         .4
   13         .2         .2         .4       23.9      124.0         .2         .4         .6         .2         .6         .6         .2
   14         .2         .6         .2       87.4        5.6         .5         .6         .6         .2        1.6         .6         .4
   15         .4         .6         .4      142.0        2.7       23.7         .4         .6         .2        1.2         .9         .2

 ------------------------------------------------------------------------------------------------------------------------------------------
   16        2.1        2.1         .2       99.5        2.7        1.6         .6         .4         .2         .6         .4         .2
   17         .1       41.2         .2        2.1        2.1         .2         .6         .4         .1         .9         .4         .2
   18         .1      128.0         .6        1.6        1.2         .2         .6         .2         .2         .2         .4         .2
   19         .1         .4         .1        1.2         .6         .4         .4         .4         .2         .4         .4         .2
   20         .2         .9         .2        1.2        6.3         .2         .4         .2         .4         .9         .4         .4

 ------------------------------------------------------------------------------------------------------------------------------------------
   21         .1         .1         .1        1.2       16.3       29.5         .6         .1         .4         .4         .4         .2
   22         .1         .1         .0         .4       19.4         .4         .6         .2         .4         .2         .4         .2
   23         .1         .1         .1         .9       19.4         .9         .6         .2        1.2         .4         .4        2.2
   24         .2         .9         .1        1.2       55.7         .6         .6         .2        1.2         .2         .4         .2
   25         .4         .2         .9         .9       77.0         .2         .6         .1        1.2         .4         .4         .1

 ------------------------------------------------------------------------------------------------------------------------------------------
   26         .2         .1         .6        1.2         .4         .2         .6         .1        1.2         .4         .4         .1
   27         .4         .1         .2        1.2         .2         .2         .6         .1        1.2         .4         .4         .1
   28         .2         .1         .1        1.6         .4         .4         .6         .2        1.2         .2         .4         .0
   29         .6         .1         .1        1.2         .0         .4         .6         .2        1.2         .4         .4         .1
   30         .2         .6         .1        1.2         .0         .4         .4         .2        1.2         .4         .4         .0
   31         .2         .0         .2        1.2         .0         .4         .0         .2         .0         .4         .4         .0

 ==========================================================================================================================================
 TOTAL      83.8      181.2       35.0    1,146.5      364.3      104.9       19.4       11.1        16.7       16.6       16.7       8.2
 MEAN        2.7        6.0        1.1       37.0       13.0        3.4         .6         .4         .6         .5         .5         .3
 MAX        67.7      128.0       27.4      693.0      124.0       33.9        2.1         .9        1.2        1.6        2.1        2.2
 MIN          .1         .1         .0         .0         .1         .2         .4         .1         .1         .2         .4         .0

 ANNUAL DATA
 WTR YEAR 1987 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                     3,975.7              2,004.4                          5.5                        693.0                           .0

 INSTANTANEOUS DATA
 INST_MAXFLOW    2,653.0      INST_MAXTIME  1545            INST_MAXDATE  10/02/86
 INST_MINFLOW         .0      INST_MINTIME  0000            INST_MINDATE

