                                                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 1978

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1         .0         .0         .1        8.6       28.6      926.0       30.9        5.6        2.1         .6        3.3         .6
    2         .0         .0         .1        6.5       24.0    1,280.0       33.2        8.6        1.6         .6        2.7         .6
    3         .0         .0         .1       19.3       24.0      834.0       24.0        6.5        1.6         .6        2.7         .6
    4         .0         .0         .1      439.0       30.9    1,970.0       64.7        5.6        1.6         .4        2.1         .6
    5         .0       26.7         .2      159.0       80.8    1,560.0       42.4       10.1        1.6         .4        2.1      117.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   6          .0        1.6         .2      111.0       44.1    1,170.0       93.8        7.5        1.2         .6        2.1       57.3
   7          .0        1.6         .2      111.0       44.1    1,170.0       93.8        7.5        1.2         .6        2.1       57.3
   8          .0        1.6         .2       61.5      177.0      608.0       44.7        7.5        1.2         .6        1.6        3.3
   9          .0         .9         .2      192.0      962.0      541.0       44.7        8.6         .9         .6        1.6        3.3
   10         .0         .4         .1      264.0      491.0      387.0       40.1        8.6         .9         .6        1.6        2.7

 ------------------------------------------------------------------------------------------------------------------------------------------
   11         .0         .6         .1       86.5      284.0      201.0       33.2        7.5         .9         .6        1.2        2.7
   12         .1         .4         .1       79.5      650.0      146.0       33.2        7.5         .6         .6        1.2        2.7
   13         .1         .2         .2       79.5      299.0      134.0       33.2        7.5         .6         .6        1.6        3.3
   14         .0         .4         .1      270.0      213.0      100.0       33.2        7.5         .9         .6        1.6        2.7
   15         .2         .6         .1      249.0      181.0       97.0      146.0        7.5         .6         .6        1.2        2.7

 ------------------------------------------------------------------------------------------------------------------------------------------
   16         .0         .4         .1      585.0      150.0      115.0       52.8        8.6         .6        2.1        2.1        2.7
   17         .0         .4       79.4      119.0      150.0      164.0       35.5        7.5         .9         .9        2.1        2.7
   18         .0         .2       88.5       70.2      150.0      223.0       11.7        7.5         .9         .9        1.6        2.7
   19         .0         .6        2.7       76.6      150.0      223.0       11.7        7.5         .9        1.2        2.1        3.3
   20         .9         .4         .2       13.2      150.0      154.0       11.7        3.3        1.2         .9        1.6        3.3

 ------------------------------------------------------------------------------------------------------------------------------------------
   21         .9         .2        1.6        8.6      150.0      140.0        8.6        2.7         .9        1.2        1.6        2.7
   22         .4         .2         .1        7.5      146.0      281.0        4.8        3.3         .9         .9        1.6        2.7
   23         .0         .2        9.3        7.5       75.0       93.5        4.0        6.5         .9        1.2        2.1        2.7
   24         .0         .2         .0        8.6        8.6       93.5        4.0        3.3         .9        1.2        1.6        2.7
   25         .0         .2       15.5        8.6        8.6       93.5        4.8        2.1         .6        1.2        1.6        2.7

 ------------------------------------------------------------------------------------------------------------------------------------------
   26         .0         .2      211.0       10.1       10.1       90.0        4.8        2.1         .6        1.2        2.1        2.7
   27         .0         .4       56.5       13.2       37.7       90.0        4.0        2.1        1.6        1.2        2.1        2.7
   28         .0         .2      352.0       13.2      525.0       86.5        4.0        2.1        1.2        1.2        1.6        2.7
   29         .0         .2        8.6       13.2         .0       45.2        4.8        2.1         .9        4.0        1.6        2.7
   30         .0         .1       20.3       17.8         .0       35.4        5.6        2.7         .6        3.3        1.2        1.6
   31         .0         .0        5.6       33.2         .0      117.0         .0        2.1         .0        2.7         .6         .0

 ==========================================================================================================================================
 TOTAL       2.6       39.1      854.2    3,092.4    5,392.4   12,846.6      959.2      179.1        31.1       33.9       55.9     255.5
 MEAN         .1        1.3       27.6       99.8      193.0      414.0       32.0        5.8        1.0        1.1        1.8        8.5
 MAX          .9       26.7      352.0      585.0      962.0    1,970.0      146.0       10.1        2.1        4.0        3.3      117.0
 MIN          .0         .0         .0        6.5        8.6       35.4        4.0        2.1         .6         .4         .6         .6

 ANNUAL DATA
 WTR YEAR 1978 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                    47,091.6             23,742.0                         65.0                      1,970.0                           .0

 INSTANTANEOUS DATA
 INST_MAXFLOW    7,820.0      INST_MAXTIME  1328            INST_MAXDATE  03/04/78
 INST_MINFLOW         .0      INST_MINTIME  0000            INST_MINDATE

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