                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                        F274B-R       DALTON WASH AT MERCED AVENUE                               RATING NO.   65-01
                                         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       31.6       35.6         .3         .1         .2      465.0         .0         .1         .8         .1         .5         .7
    2       31.4       35.5         .3         .1         .1         .0         .0         .3         .4         .1         .6        1.2
    3       33.2       34.8         .3       82.3         .1         .0         .0        1.0         .5         .1         .8         .9
    4       35.6       35.7         .3      311.0         .1       31.6       37.1         .8         .3         .1         .3         .6
    5       39.0       35.7         .3        8.0         .1         .2       36.2         .2         .2         .1         .9        2.3

 ------------------------------------------------------------------------------------------------------------------------------------------
   6        38.9       35.7         .3         .1         .1         .2       38.4         .2         .1         .1         .3         .3
   7        38.9       35.7         .3         .1         .1         .2       38.4         .2         .1         .1         .3         .3
   8        38.5       39.3         .3         .1         .3      111.0       40.9         .4         .1         .7         .5         .7
   9        29.9       40.5         .3       31.1         .1       91.3       42.6        1.9         .1         .8         .3         .1
   10       30.3       41.5         .2       39.5         .1      121.0       20.4         .7         .1         .1         .4         .1

 ------------------------------------------------------------------------------------------------------------------------------------------
   11       31.2       42.1         .1       96.2         .4      113.0         .0         .9         .8         .1         .4         .1
   12       32.3       43.5        4.3      102.0         .1       50.0         .0         .6         .1         .1         .4         .1
   13       30.7       40.1         .3      101.0         .1      114.0         .0         .7         .1         .1         .5         .1
   14       31.6       57.3         .2      103.0         .1      156.0         .0         .6         .1         .1         .5         .1
   15       32.2       35.1         .1      106.0         .1         .3         .0         .6         .1         .0         .7         .1

 ------------------------------------------------------------------------------------------------------------------------------------------
   16       33.0       38.0         .1      105.0         .4         .9         .0         .6         .1         .2         .7         .1
   17       32.9       38.5         .1       93.3         .1         .1         .0         .3         .1         .1         .4        2.5
   18       33.0       38.8         .1       95.3         .1         .1         .0         .6         .1         .1         .5         .8
   19       32.9       31.7         .1       91.4         .1       50.9         .0         .6         .1         .1         .5        1.3
   20       32.7       35.4         .1      103.0         .1      199.0         .0         .6         .1         .1         .4        1.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   21       32.7       13.1         .1      113.0         .2      155.0         .0        1.3         .1         .1         .7         .5
   22       33.2       19.1         .2      103.0         .1        1.4         .0        1.2         .1         .1         .6         .4
   23       33.1       18.6         .4       62.7         .1         .5         .0         .9         .1         .1         .4         .4
   24       33.7       18.6         .1         .1         .1         .4         .0        1.1         .1         .1         .6        1.7
   25       34.4       20.7         .1         .1         .0         .3         .0         .6         .2         .1         .4         .4

 ------------------------------------------------------------------------------------------------------------------------------------------
   26       34.2       46.6         .1         .1         .0         .7         .0         .5         .3         .1         .6         .3
   27       34.8       17.7         .8         .1      445.0         .0         .0        1.0         .2         .1         .7         .3
   28       34.9        5.6         .4         .1      593.0         .0         .0         .7         .1         .1         .6         .3
   29       35.2         .3         .1         .1         .0         .0         .0         .8         .1         .3         .6         .4
   30       36.0         .3         .1         .1         .0         .0         .7        3.0         .1         .3         .7         .8
   31       35.5         .0         .2         .1         .0         .0         .0        1.6         .0         .5         .9         .0

 ==========================================================================================================================================
 TOTAL   1,047.5      932.3       11.0    1,748.1    1,041.4    1,811.9      255.8       24.6         5.8        5.1       16.2      19.3
 MEAN       33.8       30.5         .4       56.5       37.2       58.5        8.5         .8         .2         .2        6.3         .6
 MAX        39.0       46.6        4.3      311.0      593.0      468.0       42.6        3.0         .8         .8        1.1        2.5
 MIN        29.9         .3         .1         .1         .0         .0         .0         .1         .1         .0         .3         .1

 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
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                    13,721.5              6,917.9                         19.5                        593.0                           .0

 INSTANTANEOUS DATA
 INST_MAXFLOW    3,288.0      INST_MAXTIME  0330            INST_MAXDATE  03/01/91
 INST_MINFLOW         .0      INST_MINTIME  0000            INST_MINDATE

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