                                                LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS
                 F250-R       SAN GABRIEL-AZUSA CONDUIT 25FT WEIR BELOW DAM                               RATING NO.   35 I
                                         MEAN DAILY DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR 1988

   DAY      OCT        NOV        DEC        JAN        FEB        MAR        APR        MAY        JUN        JUL        AUG        SEP
 ------------------------------------------------------------------------------------------------------------------------------------------
    1         .0       29.8       24.6       43.9         .2         .2       52.3         .2       69.5       50.2       50.2       49.1
    2        1.1       53.5       24.6       43.9       40.4         .2       52.3         .2       69.5       49.1       50.2       49.1
    3        1.5       78.2       31.6       44.9       54.8         .2       52.3       47.0       67.4       49.1       50.2       49.1
    4        1.5       76.7       34.2       45.9       60.1         .2       52.3       68.3       69.5       50.2       50.2       49.1
    5        1.5       78.3       34.2       44.9       60.1         .2       52.3       68.3       69.5       50.2       50.2       49.1

 ------------------------------------------------------------------------------------------------------------------------------------------
   6         1.5       78.2       34.2       43.9       60.1         .2       51.2       68.3       69.5       50.2       50.2       49.1
   7         1.5       78.2       34.2       43.9       60.1         .2       51.2       68.3       69.5       50.2       50.2       49.1
   8         1.5       79.4       34.2       43.9       60.1         .2       53.4       68.3       68.3       50.2       50.2       49.1
   9         1.8       63.7       34.2       44.9       59.0       40.0       53.4       68.3       67.2       50.2       50.2       48.0
   10        1.8       40.1       34.2       44.9       60.1       46.2       53.4       68.3       67.2       50.2       50.2       48.0

 ------------------------------------------------------------------------------------------------------------------------------------------
   11        1.8       39.8       34.2       44.3       20.9       52.3       53.4       68.3       67.2       50.2       50.2       48.0
   12        2.0       50.2       35.1       13.5         .2       52.3       18.8       69.5       67.2       50.2       50.2       48.0
   13       17.7       49.9       35.1         .2         .2       52.3         .4       69.5       66.4       50.2       23.4       48.0
   14       24.6       50.2       35.1         .2         .2       52.3         .4       69.5       68.3       50.2       50.2       51.8
   15       22.5       50.2       41.8         .2         .2       49.7         .4       69.5       68.3       50.2       50.2       51.8

 ------------------------------------------------------------------------------------------------------------------------------------------
   16       15.4       43.7       16.0         .2       25.8       49.8         .4       70.7       29.2       50.2       50.2       51.8
   17        2.0       34.1         .2         .2       56.7       53.4         .4       69.5        2.5       50.2       50.2       51.8
   18        2.0       34.2         .2         .2       18.6       53.4         .4       15.9         .2       50.2       50.2       51.8
   19        2.0       34.2         .2         .2         .2       52.3         .2       48.3         .2       50.2       50.2       51.8
   20        2.0       29.0         .2        4.0         .2       51.3         .2       69.5         .2       50.2       50.2       51.8

 ------------------------------------------------------------------------------------------------------------------------------------------
   21        2.6       24.6         .2         .2         .2       51.3         .2       69.5       38.8       50.2       49.7       51.8
   22        3.1       24.6         .2         .2         .2       51.3         .2       69.5       50.2       50.2       50.2       51.8
   23        2.6       24.6         .2         .2         .2       49.1         .2       69.5       49.1       50.2       50.2       51.8
   24        2.2       24.6         .2         .2         .2       39.1         .2       69.5       49.1       50.2       50.2       51.8
   25        2.2       24.6         .2         .2         .2       52.3         .2       69.5       50.2       50.2       50.2       51.8

 ------------------------------------------------------------------------------------------------------------------------------------------
   26        2.0       24.6         .2         .2         .2       52.3         .2       69.5       49.1       50.2       50.2       51.8
   27        2.0       24.6         .2        3.2         .2       52.3         .2       69.5       14.4       50.2       50.2       51.8
   28        2.0       24.6         .2         .2         .2       52.3       43.8       69.5         .2       50.2       50.2       51.8
   29        2.0       24.6       30.5         .2         .2       52.3       24.3       69.5         .2       50.2       49.0       51.8
   30       18.1       24.6       44.9         .2         .0       52.3         .2       69.5       29.2       50.2       49.4       51.8
   31       29.8         .0       44.9         .2         .0       51.6         .0       69.5         .0       50.2       49.1         .0

 ==========================================================================================================================================
 TOTAL     174.3    1,317.6      640.2      513.5      640.0    1,163.1      671.0    1,910.2     1,387.3    1,554.0    1,525.8   1,513.4
 MEAN        5.6       43.9       20.6       16.6       22.1       37.5       22.4       61.6       46.2       50.1       49.2       50.4
 MAX        29.8       79.4       44.9       45.9       60.1       53.4       53.4       70.7      695.0       50.2       50.2       51.8
 MIN          .0       24.6         .2         .2         .2         .2         .2         .2         .2       49.1       23.4       48.0

 ANNUAL DATA
 WTR YEAR 1988 TOTAL IN A.F.  ANNUAL TOTAL IN CFS  ANNUAL AVERAGE DAILY IN CFS  ANNUAL MAXIMUM DAILY IN CFS  ANNUAL MINIMUM DAILY IN CFS
 ---------------------------  -------------------  ---------------------------  ---------------------------  ---------------------------
                    25,805.8             13,010.4                         35.5                         79.4                           .2

 INSTANTANEOUS DATA
 INST_MAXFLOW       51.8      INST_MAXTIME  1600            INST_MAXDATE  09/29/88
 INST_MINFLOW         .0      INST_MINTIME  0100            INST_MINDATE  10/04/87

