                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                       F190-R       SAN GABRIEL RIVER AT FOOTHILL BLVD.                               RATING NO.   *
                                         MEAN DAILY DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR 1978

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1         .0        7.2      259.0         .7    1,360.0    6,080.0    1,510.0      864.0      932.0      103.0         .0      161.0
    2         .0       20.3      266.0         .6      743.0    6,640.0    1,020.0      816.0      915.0      111.0         .0       22.8
    3         .0       21.1      266.0         .6      207.0    6,500.0    1,020.0      816.0      915.0       83.2         .0       22.8
    4         .0       20.3      259.0        7.1      187.0   11,000.0    1,090.0      800.0      897.0       52.4         .0       21.5
    5         .0       20.3      266.0       12.8      194.0   11,600.0    1,350.0      832.0      897.0       46.4         .0      127.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   6          .0       19.2      281.0       96.2      240.0    6,420.0    1,480.0      880.0      880.0       46.4         .0      248.0
   7          .0       19.2      281.0       96.2      240.0    6,420.0    1,480.0      880.0      880.0       46.4         .0      248.0
   8          .0        8.9      288.0       99.5      248.0    4,080.0    1,400.0      864.0      932.0       46.4         .0      394.0
   9          .0       12.3      296.0      154.0    1,700.0    3,840.0    1,350.0      864.0    1,000.0       43.4         .0      296.0
   10         .0       21.3      288.0      268.0    2,510.0    2,560.0    1,080.0      605.0      967.0      122.0         .0      296.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   11         .0       20.3      288.0      210.0    3,320.0    1,400.0      800.0      417.0      967.0      216.0         .0      157.0
   12         .0       19.2      288.0      185.0    4,520.0    1,380.0      546.0      417.0      864.0      216.0         .0       35.6
   13         .0       19.2      296.0      185.0    4,460.0    1,350.0      361.0      408.0      752.0      216.0         .0       33.7
   14         .0       19.2      288.0      247.0    3,860.0    1,330.0      614.0      417.0      665.0      223.0         .0       33.7
   15         .0       18.2      281.0      475.0    3,090.0    1,240.0    1,300.0      592.0      573.0      230.0         .0       31.8

 ------------------------------------------------------------------------------------------------------------------------------------------
   16         .0       17.1      304.0      435.0    2,800.0    1,170.0    1,670.0      784.0      549.0      230.0         .0       29.8
   17         .0       17.1      304.0    1,250.0    1,910.0    1,090.0    1,290.0      768.0      513.0      223.0         .0       25.9
   18         .0       16.0      313.0    1,300.0    1,120.0    1,040.0    1,040.0      768.0      513.0      230.0         .0       25.9
   19         .0       15.0      250.0    1,010.0    1,120.0    1,020.0      985.0      768.0      452.0      230.0         .0       29.8
   20         .0       15.0       17.8      909.0    1,140.0      826.0      950.0      784.0      370.0      230.0         .0       29.8

 ------------------------------------------------------------------------------------------------------------------------------------------
   21         .0       26.0        6.1      950.0    1,260.0      645.0      985.0      768.0      252.0      230.0         .0       29.8
   22         .0      146.0         .0      950.0    1,380.0    1,090.0    1,050.0      768.0      252.0      230.0         .0       29.8
   23         .0      185.0         .0    1,050.0    1,480.0      784.0    1,040.0      768.0      252.0      230.0       15.5       27.9
   24         .0      196.0         .0    1,190.0    1,500.0      720.0    1,000.0      768.0      259.0      139.0      194.0       27.9
   25         .0      203.0         .0    1,230.0    1,360.0      679.0      932.0      800.0      259.0         .0      238.0       11.3

 ------------------------------------------------------------------------------------------------------------------------------------------
   26         .0      203.0        4.8    1,300.0    1,360.0      652.0      932.0      880.0      259.0         .0      252.0         .1
   27         .0      203.0        1.5    1,380.0    1,380.0      652.0      915.0      932.0      266.0         .0      252.0         .1
   28         .0      218.0      122.0    1,330.0    2,250.0      720.0      915.0      932.0      281.0         .0      274.0         .1
   29         .0      248.0       10.4    1,330.0         .0      784.0      915.0      932.0      281.0         .0      288.0         .1
   30         .0      248.0        1.9    1,330.0         .0    1,360.0      897.0      915.0      221.0         .0      296.0         .1
   31         .0         .0         .7    1,350.0         .0    2,070.0         .0      932.0         .0         .0      288.0         .0

 ==========================================================================================================================================
 TOTAL        .0    2,223.5    5,527.2   20,335.0   46,964.0   85,022.0   31,917.0   23,739.0    18,015.0    3,773.6    2,097.5   2,604.3
 MEAN         .0       74.1      178.0      656.0    1,680.0    2,740.0    1,060.0      766.0      600.0      122.0       67.7       86.8
 MAX          .0      248.0      313.0    1,380.0    4,520.0   11,600.0    1,670.0      932.0    1,000.0      230.0      296.0      455.0
 MIN          .0        7.2         .0         .6      187.0      645.0      361.0      408.0      221.0         .0         .0         .1

 ANNUAL DATA
 WTR YEAR 1978 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                   480,432.4            242,218.0                         22.0                     11,600.0                           .0

 INSTANTANEOUS DATA
 INST_MAXFLOW   24,300.0      INST_MAXTIME  1730            INST_MAXDATE  03/04/78
 INST_MINFLOW         .0      INST_MINTIME  0000            INST_MINDATE

