                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                    F312-R       SAN JOSE CHANNEL ABOVE WORKMAN MILL RD                               RATING NO.   78-01
                                         MEAN DAILY DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR 1982

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1      122.0       13.4       36.8      330.0       13.4       70.5      497.0       14.2       13.4       14.2       15.0       15.0
    2       16.2       14.2       35.4       65.3       12.6       41.4       28.4       13.4       11.8       14.2       14.2       11.8
    3       14.2       13.4       24.6       15.0       14.2       26.3       28.4       13.4       11.8       14.2       14.2       11.0
    4       15.0       14.2       18.6       23.3       14.2       49.0       28.4       20.4       14.2       15.0       14.2       10.2
    5       15.0       14.2       18.6      189.0       15.0       49.0       19.8       13.4       12.6       15.0       14.2       12.6

 ------------------------------------------------------------------------------------------------------------------------------------------
   6        14.2       14.2       18.6       17.4       14.2       49.0       16.2       12.6       11.8       14.2       14.2       19.8
   7        14.2       14.2       18.6       17.4       14.2       49.0       16.2       12.6       11.8       14.2       14.2       19.8
   8        13.4       14.2       19.8       15.0       19.8       24.7       17.4       13.4        9.4       13.4       14.2       22.6
   9        14.2       13.4       21.0       14.2       18.6       47.4       15.0       13.4        9.4       14.2       14.2       23.4
   10       15.0       13.4       21.0       14.2      255.0       40.8       15.0       13.4       10.2       13.4       14.2       21.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   11       42.9       13.4       24.6       15.0       34.8       30.4      103.0       17.3       10.2       13.4       14.2       19.8
   12       14.2       13.4       18.6       15.0       18.6       21.2       14.2       14.2       11.0       13.4       14.2       19.8
   13       14.2       14.2       16.2       14.2       17.4       12.6       12.6       12.6       11.0       13.4       14.2       19.8
   14       14.2       15.0       16.2       15.0       15.0      629.0       12.6       12.6       11.8       13.4       14.2       18.6
   15       15.0       13.4       14.2       15.0       16.2       66.5       13.4       12.6       11.0       14.2       14.2       14.2

 ------------------------------------------------------------------------------------------------------------------------------------------
   16       14.2       14.2       13.4       15.0       25.3      365.0       13.4       12.6       11.0       13.4       14.2       11.0
   17       15.0       12.6       12.6       14.2       17.4    1,140.0       12.6       13.4       12.6       13.4       14.2       12.6
   18       14.2       12.6       12.6       13.4       17.4      195.0       12.6       13.4       13.4       13.4       14.2       21.0
   19       14.2       12.6       14.2       14.2       18.6       18.6       12.6       12.6       12.6       13.4       13.4       18.6
   20       14.2       12.6       15.0      548.0       15.0       15.0       12.6       12.6       12.6       14.2       13.4       15.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   21       16.2       12.6       18.6      159.0       15.0       15.0       12.6       12.6       12.6       14.2       14.2       11.8
   22       16.2       13.4       16.2       18.6       15.0       15.0       11.8       13.4       13.4       16.2       13.4       10.2
   23       15.0       12.6       16.2       16.2       13.4       15.0       12.6       13.4       11.8       18.6       15.0        8.6
   24       16.2       13.4       18.6       15.0       32.7       15.0       14.2       13.4       12.6       13.4       15.0       11.0
   25       16.2       12.6       19.8       15.0       58.9       21.2       14.2       13.4       11.8       15.0       87.3       12.6

 ------------------------------------------------------------------------------------------------------------------------------------------
   26       16.2       68.1       21.0       16.2       60.8       25.9       13.4       13.4       12.6       15.0       19.8       67.1
   27       15.0      484.0       19.8       15.0       60.8       16.2       13.4       13.4       12.6       13.4       17.4       14.2
   28       25.6    1,070.0       19.8       67.3       60.8       20.2       12.6       12.6       12.6       12.6       18.6       13.4
   29       18.3       39.6       22.2       18.1         .0       56.5       13.4       12.6       11.8       14.2       17.4       14.2
   30       15.0       38.2       93.7       14.2         .0       22.8       13.4       12.6       11.8       15.0       17.4       14.2
   31       15.0         .0       16.2       13.4         .0       17.4         .0       12.6         .0       15.0       18.6         .0

 ==========================================================================================================================================
 TOTAL     609.8    2,036.5      673.9    1,745.4      905.1    3,170.4    1,033.0      418.3       357.2      440.2      538.1     511.3
 MEAN       19.7       67.9       21.7       56.3       32.3      102.0       34.4       13.5       11.9       14.2       17.4       17.0
 MAX       122.0    1,070.0       93.7      548.0      255.0    1,140.0      497.0       20.4       14.2       18.6       87.3       67.1
 MIN        13.4       12.6       12.6       13.4       12.6       12.6       11.8       12.6        9.4       12.6       13.4        8.6

 ANNUAL DATA
 WTR YEAR 1982 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                    24,672.8             12,439.2                         34.1                      1,140.0                          8.6

 INSTANTANEOUS DATA
 INST_MAXFLOW    5,790.0      INST_MAXTIME  1451            INST_MAXDATE  03/14/82
 INST_MINFLOW        8.6      INST_MINTIME  1654            INST_MINDATE  09/22/82

