                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                       F304-R       WALNUT CREEK ABOVE PUENTE AVENUE                               RATING NO.   67-01
                                         MEAN DAILY DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR 1981

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1        1.2         .4         .4         .0         .6      468.0         .1         .4         .2         .2         .4         .4
    2        1.2         .4         .6         .0         .4      160.0       12.4         .4         .9         .2         .4         .4
    3        2.1         .4        1.6         .2         .4       30.9         .2         .4         .2         .2         .4         .4
    4        1.6         .4       57.1         .0         .4       30.9         .2         .2         .2         .2         .4         .2
    5        1.6         .4        1.6         .0         .6       68.9         .4         .2         .6         .2         .4         .2

 ------------------------------------------------------------------------------------------------------------------------------------------
   6         1.6         .6         .0         .4         .6        1.6         .4         .2         .9         .4         .2         .2
   7         1.6         .6         .0         .4         .6        1.6         .4         .2         .9         .4         .2         .2
   8         1.2         .6         .0         .1       21.4        1.2         .9         .1         .2         .4         .4         .4
   9         1.2         .6         .0         .0       68.5         .6         .2         .1         .4         .2         .4         .4
   10        1.2         .4         .0         .1        1.2         .1         .1         .2         .4         .4         .4         .2

 ------------------------------------------------------------------------------------------------------------------------------------------
   11        1.2        1.2         .1        8.3         .9         .1         .1         .1         .2         .2         .4         .4
   12        1.2        1.2         .1         .4         .6         .2         .1         .1         .4         .2         .2         .6
   13         .9         .9         .0         .2         .6         .4         .1         .2         .2         .2         .2         .4
   14         .9         .6         .0         .2         .6         .1         .2         .2         .2         .4         .4         .4
   15         .9         .4         .0         .1         .6         .4         .1         .2         .2         .4         .4         .9

 ------------------------------------------------------------------------------------------------------------------------------------------
   16        1.2         .4         .1         .2         .6         .0         .1         .2         .2         .2         .4         .6
   17         .6         .4         .0         .2         .6         .0         .1         .1         .4         .2         .2         .4
   18         .6         .4         .0         .2         .6         .0       19.3         .1         .4         .2         .4         .4
   19         .6         .4         .0         .2         .6       57.6       32.1         .2         .4         .2         .4         .4
   20         .9         .4         .1         .2         .9       10.1         .6        1.2         .2         .2         .4         .4

 ------------------------------------------------------------------------------------------------------------------------------------------
   21         .4         .4         .1         .4         .9         .1         .4         .0         .2         .2         .4         .4
   22         .4        1.2         .0         .2         .6         .1         .4         .2         .1         .2         .4         .2
   23         .4         .4         .0       33.0         .6         .1         .2         .1         .2         .2         .4         .6
   24         .4         .4         .1         .2         .6         .1         .2         .1         .2         .2         .2         .4
   25         .9         .2         .1         .4       56.1         .2         .2         .2         .2         .4         .4         .4

 ------------------------------------------------------------------------------------------------------------------------------------------
   26         .4         .2         .0         .2       12.8        4.2         .1         .2         .2         .4         .4         .2
   27         .6         .4         .1         .2         .9         .1         .1         .2         .2         .4         .4         .4
   28         .4         .4         .1      176.0       39.5         .2         .1         .2         .2         .4         .4         .2
   29         .4         .4         .2      218.0         .0         .4         .2         .2         .2         .4         .2         .4
   30         .4         .4         .1        2.1         .0         .1         .2         .2         .2         .4         .2         .6
   31         .4         .0         .0         .9         .0         .1         .0         .2         .0         .4         .4         .0

 ==========================================================================================================================================
 TOTAL      28.6       15.5       62.5      442.8      213.3      837.0       70.2        6.8         9.1        8.6       10.8      11.9
 MEAN         .9         .5        2.0       14.3        7.6       27.0        2.3         .2         .3         .3         .3         .4
 MAX         2.1        1.2       57.1      218.0       68.5      468.0       32.1        1.2         .9         .4         .4         .9
 MIN          .4         .2         .0         .0         .4         .0         .1         .0         .1         .2         .2         .2

 ANNUAL DATA
 WTR YEAR 1981 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                     3,405.8              1,717.1                          4.7                        468.0                           .0

 INSTANTANEOUS DATA
 INST_MAXFLOW    1,840.0      INST_MAXTIME  1150            INST_MAXDATE  03/01/81
 INST_MINFLOW         .0      INST_MINTIME  0000            INST_MINDATE

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