                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                      F190-R       SAN GABRIEL RIVER AT FOOTHILL BLVD.                               RATING NO.   54-1
                                         MEAN DAILY DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR 1980

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1         .0         .0         .0         .0       12.9      993.0      566.0      942.0      256.0       46.9        1.1         .0
    2         .0         .0         .0         .0        6.7    1,080.0      620.0      892.0      241.0       46.9        1.2         .0
    3         .0         .0         .0         .0       15.2    1,410.0      670.0      876.0      163.0       20.3         .5         .0
    4         .0         .0         .0         .0       74.0    2,360.0      520.0      876.0      132.0       10.5         .3         .0
    5         .0      123.0         .0         .0      143.0    2,430.0      657.0      859.0      124.0        9.2         .3         .0

 ------------------------------------------------------------------------------------------------------------------------------------------
   6          .0      379.0         .0         .0      141.0    2,460.0      684.0      603.0      119.0        6.7         .4         .0
   7          .0      379.0         .0         .0      141.0    2,460.0      684.0      603.0      119.0        6.7         .4         .0
   8          .1      407.0         .0         .0      138.0    2,250.0      670.0      760.0      115.0       12.9         .2         .5
   9          .1      373.0         .0       11.3      130.0    1,910.0      670.0      859.0      115.0       17.1         .2         .2
   10         .1      398.0         .0       22.2      121.0    1,630.0      686.0      892.0      115.0       19.2         .1         .0

 ------------------------------------------------------------------------------------------------------------------------------------------
   11         .1      398.0         .0       42.7      124.0      833.0      768.0      859.0      111.0       18.2         .1         .0
   12         .1      389.0         .0        6.0      124.0      754.0      768.0      782.0      111.0       18.2         .1         .0
   13         .1      377.0         .0        2.9       68.4      709.0      768.0      159.0      111.0       18.2         .1         .0
   14         .1      379.0         .0       74.5       98.4      700.0      782.0       24.2      111.0       19.2         .1         .0
   15         .1      379.0         .0       69.9      495.0      726.0      826.0       64.1      111.0       19.2         .1         .0

 ------------------------------------------------------------------------------------------------------------------------------------------
   16         .0      370.0         .0       35.6    2,100.0      712.0      826.0      639.0      107.0       10.5         .1         .0
   17         .0      370.0         .0       29.8    8,271.0      698.0      826.0      740.0      107.0        7.3         .1         .1
   18         .0      370.0         .0       31.8    8,371.0      712.0      810.0      726.0      102.0       12.9         .1         .0
   19         .0      362.0         .0       27.9    8,751.0      684.0      810.0      712.0      107.0       12.9         .1         .0
   20        1.2      354.0         .0       25.9    8,469.0      582.0      810.0      684.0      102.0       13.9        3.0         .0

 ------------------------------------------------------------------------------------------------------------------------------------------
   21         .1      354.0         .0       25.9    8,217.0      563.0      843.0      594.0      102.0       13.9        5.4         .4
   22         .0      354.0         .0       29.0    6,893.0      582.0      942.0      569.0      102.0       12.9        5.0         .8
   23         .0      337.0         .0      111.0    4,275.0      557.0      942.0      582.0      102.0       11.8        4.7         .1
   24         .1      329.0         .0      125.0    3,513.0      557.0      942.0      582.0       59.1       11.2        4.7         .0
   25         .1      321.0         .0      125.0    3,361.0      569.0      942.0      569.0       42.0       10.5        3.5         .0

 ------------------------------------------------------------------------------------------------------------------------------------------
   26         .1      313.0         .0      130.0    2,989.0      375.0      942.0      557.0       39.6        8.6         .1         .0
   27         .1      304.0         .0      130.0    1,439.0      582.0      925.0      557.0       42.0        9.2         .1         .0
   28         .1      288.0         .0      132.0      314.0      594.0      942.0      620.0       42.0        9.2         .0         .0
   29         .1      133.0         .0      545.0      651.0      569.0      978.0      290.0       42.0        6.7         .0         .0
   30         .0         .0         .0       46.7         .0      557.0      975.0      241.0       42.0        3.2         .0         .0
   31         .0         .0         .0       23.5         .0      557.0         .0      248.0         .0        1.5         .0         .0

 ==========================================================================================================================================
 TOTAL       2.7    8,532.0         .0    1,803.6   69,444.6   32,075.0   23,794.0   18,577.3     3,193.7      444.3       32.1       2.3
 MEAN         .1      284.0         .0       58.2    2,395.0    1,035.0      793.0      599.0      106.0       14.3        1.0         .1
 MAX         1.2      398.0         .0      545.0    8,751.0    2,460.0      978.0      942.0      256.0       46.9        5.4         .8
 MIN          .0         .0         .0        2.9        6.7      375.0      520.0       24.2       42.0        1.5         .1         .0

 ANNUAL DATA
 WTR YEAR 1980 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                   313,218.4            157,914.3                        440.6                      8,751.1                           .0

 INSTANTANEOUS DATA
 INST_MAXFLOW                 INST_MAXTIME  0000            INST_MAXDATE
 INST_MINFLOW         .0      INST_MINTIME  0000            INST_MINDATE

