                                                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 1981

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1        6.9        6.9       11.8      107.0        4.4      379.0       75.3        3.2        2.3        1.9        1.6        2.7
    2       10.4        6.9        3.2      107.0        4.4      121.0       82.2        2.7        2.3        1.9        1.9        2.7
    3        7.9        5.2        4.4      107.0        5.2        2.7       78.0        2.3        2.3        1.9        1.9        2.7
    4        9.1        3.2      103.0      107.0       45.3        2.3       78.0        2.3        1.6        1.9        1.9        3.2
    5       10.4        3.7        3.7      107.0       99.0       46.3       78.0        2.7        1.9        2.7        2.3        3.7

 ------------------------------------------------------------------------------------------------------------------------------------------
   6         9.1        3.2        3.7      112.0       99.0        3.2       46.1        2.7        2.7        2.3        2.3        5.2
   7         9.1        3.2        3.7      112.0       99.0        3.2       46.1        2.7        2.7        2.3        2.3        5.2
   8        10.4        3.7        2.7      112.0       65.6        1.9        2.7        2.3        2.7        2.3        4.4        1.6
   9        11.8        3.7        2.7      107.0       63.1        2.7        2.7        2.3        2.7        5.2        3.7        2.3
   10       11.8        4.4        2.3      107.0        4.4        3.7        2.7        2.3        1.9        2.7        4.4        2.7

 ------------------------------------------------------------------------------------------------------------------------------------------
   11       11.8        4.4        2.7      120.0        4.4        3.2        3.2        3.7        1.9        2.7        2.7        2.7
   12       13.2        6.0        2.7       90.6        5.2        2.3        3.2        3.2        1.9        2.7        5.2        3.2
   13       10.4        4.4        2.3       90.6        6.0        3.2       37.6        2.7        1.9        2.7        3.7        2.3
   14       11.8        3.7        1.6       90.6        6.9        3.2       78.0        1.9        1.6        1.9        3.7        3.2
   15       11.8        3.2        2.3       75.4        5.2        1.9       78.0        1.6        1.3        3.2        1.9        2.3

 ------------------------------------------------------------------------------------------------------------------------------------------
   16       13.2        2.7        2.3       42.6        6.9        2.3       82.2        2.3        1.9        2.7        2.3        2.7
   17       10.4        2.7        1.9       78.0        6.9        2.3       82.2        1.3        2.7        3.2        3.2        2.3
   18        9.1        3.2        1.9       75.3        6.0        3.2       64.0        1.9        3.2        2.7        2.7        2.7
   19        6.9        3.2        1.9       82.2        6.0       88.4       28.8        1.9        3.2        3.7        2.3        2.7
   20        6.0        3.2        1.9       99.0        5.2        2.7       47.4        2.7        2.7        2.3        1.9        3.2

 ------------------------------------------------------------------------------------------------------------------------------------------
   21        6.9        3.7        1.9       99.0        5.2        1.9       86.4        1.0        1.6        3.7        2.7        4.4
   22        7.9        3.7       41.4       77.5        4.4        1.9      103.0        1.9        2.3        2.7        2.7        2.7
   23        9.1        3.2       82.2       31.8        6.0        3.7      112.0        1.9        2.7        4.4        1.9        2.7
   24        9.1        5.2       82.2       47.7        6.9        3.2      116.0        1.6        2.7        2.3        2.3        2.7
   25        7.9        4.4       78.0       82.2       69.5        2.3      120.0        1.9        3.2        2.3        2.3        2.7

 ------------------------------------------------------------------------------------------------------------------------------------------
   26       10.4        4.4       82.2       76.1        4.4        6.6      120.0        2.3        3.2        3.2        2.3        3.7
   27        9.1        2.7       82.2        4.4        3.7        3.2      128.0        4.4        3.2        3.7        2.7        2.7
   28        9.1        4.4       82.2      163.0       42.6        2.7       94.8        2.3        3.2        3.2        2.7        3.2
   29        7.9        3.2       86.4      245.0         .0        2.3       44.8        1.9        5.2        2.7        2.3        2.7
   30        6.0       19.6       99.0        6.9         .0       44.1        3.7        3.2        3.2        3.2        2.7        9.0
   31        6.9         .0      107.0        7.9         .0       75.3         .0        2.3         .0        2.7        3.2         .0

 ==========================================================================================================================================
 TOTAL     293.1      135.8      986.4    2,770.8      690.8      825.0    1,881.7       73.0        75.5       87.0       84.1      93.3
 MEAN        9.5        4.5       31.8       89.4       24.7       26.6       62.7        2.4        2.5        2.8        2.7        3.1
 MAX        13.2       19.6      107.0      245.0       99.0      379.0      128.0        4.4        5.2        5.2        5.2        9.0
 MIN         6.0        2.7        1.6        4.4        3.7        1.9        2.7        1.0        1.3        1.9        1.6        1.6

 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
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                    15,860.8              7,996.5                         21.9                        379.0                          1.0

 INSTANTANEOUS DATA
 INST_MAXFLOW    1,830.0      INST_MAXTIME  0245            INST_MAXDATE  03/01/81
 INST_MINFLOW         .1      INST_MINTIME  0815            INST_MINDATE  09/03/81

