                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                     F190-R       SAN GABRIEL RIVER AT FOOTHILL BLVD.                               RATING NO.   83-01
                                         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       47.3         .0         .0         .0         .0      304.0      137.0         .0         .0         .0      520.0       96.6
    2       45.1         .0         .0         .0         .0      126.0      134.0         .0         .0         .0      500.0      109.0
    3       48.2         .0         .0         .0         .0       86.4      128.0         .0         .0         .0      453.0       18.6
    4       47.7         .0         .0         .0         .0       77.4      119.0         .0         .0         .0      412.0      133.0
    5       48.8         .0         .0         .0         .0       81.6      174.0         .0         .0         .0      393.0      128.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   6        51.0         .0         .0         .0         .0       85.5      184.0         .0         .0         .0      367.0      119.0
   7        51.0         .0         .0         .0         .0       85.5      184.0         .0         .0         .0      367.0      119.0
   8        52.3         .0         .0         .0         .0       94.5      184.0         .0         .0         .0      290.0      129.0
   9        53.5         .0         .0         .0         .0       86.7      184.0         .0         .0         .0      465.0      155.0
   10       54.5         .0         .0         .0         .0       87.4      174.0         .0         .0         .0      456.0      150.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   11       55.5         .0         .0         .0         .0       83.2       75.0         .0         .0         .0      433.0      144.0
   12       56.2         .0         .0         .0         .0       77.9        4.6         .0         .0         .0      396.0      184.0
   13       58.7         .0         .0         .0         .0      105.0        2.8         .0         .0         .0      257.0      205.0
   14       59.5         .0         .0       10.2         .0       95.1         .0         .0         .0         .0      358.0      257.0
   15       59.7         .0         .0       19.4         .0       88.1         .0         .0         .0         .0      359.0      279.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   16       61.1         .0         .0       27.9         .0       87.1         .0         .0         .0         .0      333.0      288.0
   17       61.1         .0         .0       30.2         .0       86.3         .0         .0         .0         .0      316.0      291.0
   18       61.2         .0         .0        2.1         .0       90.0         .0         .0         .0         .0      310.0      243.0
   19       63.7         .0         .0         .0         .0      148.0         .0         .0      137.0         .0      299.0      259.0
   20       63.8         .0         .0         .0         .0      158.0         .0         .0      150.0      363.0      289.0      261.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   21       64.3         .0         .0         .0         .0      134.0         .0         .0      185.0      446.0      277.0      261.0
   22       65.4         .0         .0       12.3         .0      120.0         .0         .0       47.9        1.1      256.0      262.0
   23       65.5         .0         .0         .7         .0      115.0         .0         .0         .4         .0      205.0      255.0
   24        7.2         .0         .0         .0         .0      113.0         .0         .0         .0         .0      159.0      193.0
   25        2.0         .0         .0         .0         .0      164.0         .0         .0         .0         .0      147.0      186.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   26         .0         .0         .0         .0         .0      183.0         .0         .0         .0      409.0      156.0      184.0
   27         .0         .0         .0         .0        1.9      459.0         .0         .0         .0      560.0       46.6      184.0
   28         .0         .0         .0         .0       28.8      224.0         .0         .0         .0      567.0       49.8      187.0
   29         .0         .0         .0         .0         .0      174.0         .0         .0         .0      564.0      141.0      203.0
   30         .0         .0         .0         .0         .0      151.0         .0         .0         .0      550.0      100.0      206.0
   31         .0         .0         .0         .0         .0      141.0         .0         .0         .0      537.0       93.7         .0

 ==========================================================================================================================================
 TOTAL   1,366.0         .0         .0      102.8       30.7    4,126.1    1,684.4         .0       520.3    3,997.0    9,162.1   5,685.2
 MEAN       44.1         .0         .0        3.3        1.1      133.1       56.1         .0       17.3      129.0      296.0      190.0
 MAX        65.8         .0         .0       30.2       28.8      459.0      184.0         .0      185.0      567.0      520.0      291.0
 MIN          .0         .0         .0         .0         .0       77.4         .0         .0         .0         .0       46.6       18.6

 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
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                    52,908.1             26,674.5                         74.1                        567.0                           .0

 INSTANTANEOUS DATA
 INST_MAXFLOW      578.0      INST_MAXTIME  0600            INST_MAXDATE  07/27/91
 INST_MINFLOW         .0      INST_MINTIME  1200            INST_MINDATE  11/15/90

