                                                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 1981

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1      105.0      128.0       19.8       17.4       22.2    1,240.0       17.4      143.0      143.0      140.0      160.0      139.0
    2      109.0      128.0       19.8       18.6       21.0      285.0       37.0      143.0      143.0      140.0      160.0       46.4
    3      109.0      128.0       18.6       18.6       17.4       27.0       27.0      143.0      143.0      140.0      160.0      138.0
    4      114.0      125.0      222.0       17.4       18.6       25.8       31.2      140.0      146.0      138.0      163.0      135.0
    5      116.0      128.0       29.4       18.6       19.8      110.0       35.4      140.0      149.0      138.0      166.0      130.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   6       118.0      130.0       18.6       17.4       18.6       24.6       41.0      140.0      149.0      138.0      166.0      125.0
   7       118.0      130.0       18.6       17.4       18.6       24.6       41.0      140.0      149.0      138.0      166.0      125.0
   8       123.0      130.0       18.6       16.2       56.6       21.0       63.1      140.0      149.0       94.6      166.0      123.0
   9       125.0      130.0       17.4       15.0      184.0       21.0      133.0      146.0      146.0      116.0      166.0      125.0
   10      125.0      128.0       18.6       16.2       19.8       21.0      135.0      146.0      146.0      118.0      169.0      125.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   11      125.0       46.2       17.4       53.5       18.6       19.8      133.0      146.0      149.0      118.0      169.0      125.0
   12      125.0       50.5       17.4       17.4       18.6       19.8      138.0      146.0      149.0      116.0      169.0      125.0
   13      125.0      125.0       17.4       18.6       16.2       19.8       86.6      146.0      149.0      116.0      172.0      128.0
   14      123.0      123.0       19.8       18.6       16.2       18.6       13.4      143.0      149.0       97.5      172.0      123.0
   15      123.0      123.0       18.6       16.2       16.2       18.6       14.2      146.0      149.0      133.0      172.0      123.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   16      133.0      123.0       16.2       16.2       16.2       17.4       14.2      143.0      107.0      135.0      172.0      123.0
   17      123.0      101.0       15.0       17.4       24.1       16.2       14.2      140.0       60.8      138.0      166.0      120.0
   18      123.0       18.6       16.2       17.4       64.6       17.4       71.3      140.0       60.8      138.0      160.0      123.0
   19      123.0       18.6       16.2       16.2       74.1      117.0       63.8      143.0       60.8      143.0      160.0      123.0
   20      123.0       18.6       16.2       15.0       84.0       40.9       27.8      143.0       62.7      155.0      157.0      120.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   21      125.0       18.6       17.4       17.4       94.0       18.6       16.2      143.0       62.7      166.0      155.0      120.0
   22      125.0       18.6       19.8       15.0      105.0       18.6       15.0      143.0       62.7      169.0      155.0      118.0
   23      125.0       21.0       18.6      140.0      116.0       16.2       13.4      146.0       60.8      169.0      157.0      120.0
   24      125.0       18.6       19.8       17.4      101.0       15.0       12.6      146.0       58.9      166.0      155.0      120.0
   25      125.0       18.6       21.0       16.2      207.0       16.2       16.2      146.0       80.2      166.0      155.0      120.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   26      125.0       19.8       19.8       16.2       88.4       24.4       15.0      146.0      146.0      166.0      155.0      118.0
   27      125.0       21.0       19.8       18.6       60.8       16.2       16.2      146.0      146.0      166.0      157.0      118.0
   28      123.0       18.6       19.8      517.0      130.0       16.2       14.2      140.0      143.0      163.0      157.0      118.0
   29      120.0       19.8       18.6      655.0         .0       16.2       56.5      140.0      140.0      160.0      157.0      120.0
   30      123.0       21.0       17.4       28.4         .0       15.0      140.0      140.0      140.0      160.0      157.0      126.0
   31      125.0         .0       18.6       23.4         .0       15.0         .0      143.0         .0      160.0      157.0         .0

 ==========================================================================================================================================
 TOTAL   3,774.0    2,226.1      782.4    1,843.9    1,646.4    2,289.5    1,459.3    4,436.0     3,600.4    4,401.1    5,028.0   3,640.4
 MEAN      122.0       74.2       25.2       59.5       58.8       73.9       48.6      143.0      120.0      142.0      162.0      121.0
 MAX       133.0      130.0      222.0      655.0      207.0    1,240.0      140.0      146.0      149.0      169.0      172.0      139.0
 MIN       105.0       18.6       15.0       15.0       16.2       15.0       12.6      140.0       58.9       94.6      155.0       46.4

 ANNUAL DATA
 WTR YEAR 1981 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                    69,674.4             35,127.5                         96.2                      1,240.0                         12.6

 INSTANTANEOUS DATA
 INST_MAXFLOW    4,810.0      INST_MAXTIME  0955            INST_MAXDATE  03/01/81
 INST_MINFLOW       10.2      INST_MINTIME  1500            INST_MINDATE  01/09/81

