                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                     F190-R       SAN GABRIEL RIVER AT FOOTHILL BLVD.                               RATING NO.   54-01
                                         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         .8       24.0       64.5       80.0      120.0      185.0      132.0        3.8       10.2      154.0        1.6        2.7
    2       73.5       24.0       67.5       73.5       99.5      185.0       39.5        3.8       10.2      120.0        1.2       13.0
    3      103.0       24.0       70.5       70.5       74.6      185.0       20.3        4.2        5.7      120.0        2.7       41.5
    4      111.0       24.0       70.5       37.6       67.7      185.0       14.1        4.6         .3      125.0        3.5       49.4
    5      116.0       24.0       70.5        1.6      125.0      185.0       11.6        6.0        8.8      130.0        3.8       49.4

 ------------------------------------------------------------------------------------------------------------------------------------------
   6        70.5       22.8       70.5       18.0      125.0      185.0       10.9       22.8        8.8       93.0        4.2       49.4
   7        70.5       22.8       70.5       18.0      125.0      185.0       10.9       22.8        8.8       93.0        4.2       49.4
   8        25.9       22.8       70.5       42.7      130.0      191.0        8.8        8.1        8.1       16.6        3.8       49.4
   9        27.9       22.8       70.5       93.0      130.0      223.0        8.1        8.8        8.8        6.7        4.2       60.4
   10       27.9       22.8       70.5       99.5      166.0      230.0        6.7        8.1        9.5        4.6        3.5       49.4

 ------------------------------------------------------------------------------------------------------------------------------------------
   11       27.9       24.0       70.5       99.5      160.0      238.0        6.0        6.0        8.8        4.2        3.1       46.4
   12       29.8       24.0       70.5       99.5      144.0      245.0        4.6       10.2        8.8        4.2        1.9       46.4
   13       19.0       24.0       70.5       99.5      140.0      238.0        3.8       10.9        8.8        4.2        2.7      105.0
   14        3.5       24.0       41.7       99.5      140.0      354.0        3.8       10.9       87.5        4.2        3.1      373.0
   15        1.2       24.0         .1       96.2      135.0      240.0        3.5       14.1      345.0        3.8        3.5      513.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   16       17.8       16.6         .1       96.2      135.0       35.6        3.1       12.8      362.0        3.8        3.8      537.0
   17       22.8        3.1       40.2       96.2      135.0      460.0        3.1       10.9      311.0        3.5        3.8      549.0
   18       22.8        3.1      185.0       96.2      135.0      165.0        3.1       10.2      304.0        3.5        3.8      561.0
   19       22.8        3.5      185.0       99.5      135.0       41.5        2.7       14.1      321.0        3.5        3.1      561.0
   20       22.8        3.5      179.0      191.0      135.0       20.3        2.7       14.1      296.0        3.8        2.7      573.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   21       24.0        3.5      150.0      185.0      130.0       11.6        2.3       14.1      296.0        3.5        2.7      562.0
   22       22.8        3.5       16.4      135.0      130.0        8.8        4.6       14.1      296.0        3.1        2.3      513.0
   23       22.8        3.8       73.5      130.0      130.0       66.6        5.3       11.6      223.0        2.7        2.7      408.0
   24       24.0        3.5       73.5      125.0      160.0      223.0        4.6       12.8       30.8        4.2        3.1      398.0
   25       24.0        3.5       73.5      120.0      185.0      175.0        4.6       12.8       73.5        4.6        3.1      398.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   26       25.9        4.6       73.5      120.0      185.0        7.4        4.2       11.6       73.5        4.6        3.1      436.0
   27       25.9        8.1       70.5      120.0      185.0        4.6        3.8       10.9       70.5        4.6        3.1      389.0
   28       25.9       25.9       70.5      125.0      185.0        4.2        3.8       10.9       70.5        3.8        3.1      379.0
   29       27.9        9.5       70.5      125.0         .0       13.7        3.8       10.2       70.5        3.8        3.1      298.0
   30       25.9       12.8       73.5      120.0         .0       22.8        3.8       11.6      108.0        2.7        3.5      379.0
   31       24.0         .0       70.5      120.0         .0        9.5         .0        9.5         .0        2.3        3.5         .0

 ==========================================================================================================================================
 TOTAL   1,045.9      462.5    2,354.5    3,107.7    3,846.8    4,517.6      338.7      334.8     3,443.7      868.8       97.1   8,438.8
 MEAN       33.7       15.4       76.0      100.0      137.0      146.0       11.3       10.8      115.0       28.0        3.1      281.0
 MAX       116.0       25.9      185.0      191.0      185.0      460.0      132.0       22.8      362.0      154.0        4.2      573.0
 MIN          .8        3.1         .1        1.6       67.7        4.2        2.3        3.8         .3        2.3        1.2        2.7

 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
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                    57,236.8             28,856.9                         79.8                        573.0                           .1

 INSTANTANEOUS DATA
 INST_MAXFLOW      720.0      INST_MAXTIME  1600            INST_MAXDATE  03/14/82
 INST_MINFLOW         .0      INST_MINTIME  0000            INST_MINDATE

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