10260700 EAST FORK OF WEST FORK MOJAVE RIVER ABOVE SILVERWOOD LAKE, NEAR HESPERIA, CA

LOCATION.-Lat 34°16'13", long 117°17'31", in NW 1/4 SW 1/4 sec.10, T.2 N., R.4 W., San Bernardino County, Hydrologic Unit 18090208, 
  San Bernardino National Forest, on right bank 0.8 mi downstream from Houston Creek, 1.5 mi upstream from Silverwood Lake, and 10.8 mi 
  south of Hesperia. 
DRAINAGE AREA.-11.2 mi2. 
PERIOD OF RECORD.-October 1995 to current year. Unpublished records for water years 1961-95 available in files of the California 
  Department of Water Resources. 
GAGE.-Water-stage recorder and concrete control. Elevation of gage is 3,590 ft above sea level, from topographic map. 
REMARKS.-Flow slightly regulated by Lake Gregory 3.2 mi upstream. 
COOPERATION.-Records were collected by California Department of Water Resources, under general supervision of the U.S. Geological 
  Survey, in connection with a Federal Energy Regulatory Commission project. 
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 706 ft3/s, Feb. 20, 1996, gage height, 5.81 ft; no flow for many days in each year. 

                  DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997

                                               DAILY MEAN VALUES
 
DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
 
  1       .00      .00      .60      5.7     21       e8.7      3.1     1.2       .21      .01      .00      .00
  2       .00      .00      .59      6.1     19       e8.0      2.6     1.2       .22      .01      .00      .00
  3       .00      .00      .61     51       18        7.5      2.5     1.1       .21      .00      .00      .00
  4       .00      .00      .56     22       16        6.9      2.5     1.1       .19      .00      .00      .00
  5       .00      .00      .58     15       15        6.5      2.4     1.0       .24      .00      .00      .00
 
  6       .00      .00      .80     12       14        6.3      2.3      .99      .32      .00      .00      .00
  7       .00      .00      .66     10       13        6.0      2.3      .97      .33      .00      .00      .00
  8       .00      .04      .54      8.8     12        5.5      2.2      .92      .26      .00      .00      .00
  9       .00      .06    15         7.8     11        5.3      2.3      .86      .21      .00      .00      .00
 10       .00      .08    38         7.2     11        5.1      2.2      .77      .17      .00      .00      .00
 
 11       .00      .09    22         6.7     10        5.1      2.2      .74      .15      .00      .00      .00
 12       .00      .08    13        11        9.8      4.8      2.1      .71      .16      .00      .00      .00
 13       .00      .09     8.4      17        9.1      4.5      2.1      .68      .62      .00      .00      .00
 14       .00      .10     5.8      16        8.8      4.4      2.0      .63      .48      .00      .00      .00
 15       .00      .11     4.1      19        8.5      4.4      1.9      .58      .35      .00      .00      .00
 
 16       .00      .12     3.4      19        8.3      4.5      1.9      .55      .24      .00      .00      .00
 17       .00      .13     2.8      15        8.3      4.1      1.7      .52      .17      .00      .00      .00
 18       .00      .14     2.3      14        8.0      4.0      1.7      .50      .13      .00      .00      .00
 19       .00      .15     2.1      13        7.7      3.9      1.7      .47      .10      .00      .00      .00
 20       .00      .15     2.2      17        7.4      4.0      1.6      .47      .08      .00      .00      .00
 
 21       .00     5.5      2.9      19        7.3      3.9      1.5      .47      .07      .00      .00      .00
 22       .00    27       60        20        7.0      3.8      1.4      .44      .07      .00      .00      .00
 23       .00    14       25        48        6.7      3.8      1.4      .44      .06      .00      .00      .00
 24       .00     5.9     13        35        6.5      3.6      1.4      .48      .05      .00      .00      .00
 25       .00     3.2      9.5      62        6.2      3.4      1.4      .47      .04      .00      .00      .00
 
 26       .00     2.1      7.6     231        6.0      3.4      1.3      .42      .03      .00      .00      .00
 27       .00     1.4      9.3      82      e12        3.5      1.3      .36      .03      .00      .00      .00
 28       .00     1.0     15        45      e10        3.4      1.3      .32      .02      .00      .00      .00
 29       .00      .77     9.5      30        ---      3.1      1.3      .27      .02      .00      .00      .00
 30      1.7       .64     7.7      25        ---      2.9      1.2      .24      .02      .00      .00      .00
 31       .22      ---     6.6      23        ---      3.4      ---      .21      ---      .00      .00      ---
 
TOTAL    1.92    62.85   290.14    913.3    297.6    147.7     56.8    20.08     5.25     0.02     0.00     0.00
MEAN     .062     2.10     9.36     29.5     10.6     4.76     1.89      .65      .17     .001     .000     .000
MAX       1.7       27       60      231       21      8.7      3.1      1.2      .62      .01      .00      .00
MIN       .00      .00      .54      5.7      6.0      2.9      1.2      .21      .02      .00      .00      .00
AC-FT     3.8      125      575     1810      590      293      113       40       10      .04      .00      .00
 
    e  Estimated.


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1996 - 1997, BY WATER YEAR (WY)                                 
  
DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
 
MEAN     .097     1.23     4.98     15.4     18.4     12.0     2.96      .98      .29     .007     .000     .000
MAX       .13     2.10     9.36     29.5     26.0     19.3     4.03     1.31      .41     .014     .000     .000
(WY)     1996     1997     1997     1997     1996     1996     1996     1996     1996     1996     1996     1996
MIN      .062      .36      .61     1.27     10.6     4.76     1.89      .65      .17     .001     .000     .000
(WY)     1997     1996     1996     1996     1997     1997     1997     1997     1997     1997     1996     1996
 
SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1996 - 1997
 
ANNUAL TOTAL                        1919.82                    1795.66                                          
ANNUAL MEAN                            5.25                       4.92                       4.64               
HIGHEST ANNUAL MEAN                                                                          4.92           1997
LOWEST ANNUAL MEAN                                                                           4.37           1996
HIGHEST DAILY MEAN                   266     Feb 20             231     Jan 26             266       Feb 20 1996
LOWEST DAILY MEAN                       .00  Jul 12                .00  Oct  1                .00    Jul 12 1996
ANNUAL SEVEN-DAY MINIMUM                .00  Jul 12                .00  Oct  1                .00    Jul 12 1996
INSTANTANEOUS PEAK FLOW                                         366     Jan 26             706       Feb 20 1996
INSTANTANEOUS PEAK STAGE                                          5.02  Jan 26               5.81    Feb 20 1996
ANNUAL RUNOFF (AC-FT)               3810                       3560                       3360                  
10 PERCENT EXCEEDS                    11                         13                         11                  
50 PERCENT EXCEEDS                      .64                        .48                        .47               
90 PERCENT EXCEEDS                      .00                        .00                        .00