10260550 WEST FORK MOJAVE RIVER ABOVE SILVERWOOD LAKE, NEAR HESPERIA, CA

LOCATION.-Lat 34°17'06", long 117°22'16", in NW 1/4 SE 1/4 sec.2, T.2 N., R.5 W., San Bernardino County, Hydrologic Unit 18090208, San 
  Bernardino National Forest, on left bank 1.5 mi upstream from Silverwood Lake, and 10.6 mi southwest of Hesperia. 
DRAINAGE AREA.-3.22 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 Unpublished records for water years 1961-95 available in files of the California 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 3,550 ft above sea level, from topographic map. 
REMARKS.-No regulation or diversion upstream from station. 
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, 360 ft3/s, Feb. 20, 1996, gage height, 3.47 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      .06      .23      2.2      9.7      3.5     1.1       .87      .17      .00      .00      .00
  2       .00      .06      .23      2.4      9.0      3.4     1.1       .85      .19      .00      .00      .00
  3       .00      .04      .23     11        8.6      3.3     1.1       .80      .17      .00      .00      .00
  4       .00      .03      .23      6.9      8.0      3.2     1.1       .78      .18      .00      .00      .00
  5       .00      .04      .23      5.7      7.7      2.9     1.2       .75      .23      .00      .00      .00
 
  6       .00      .04      .23      4.8      7.1      2.8     1.1       .72      .22      .00      .00      .00
  7       .00      .04      .23      4.2      6.7      2.7     1.1       .64      .21      .00      .00      .00
  8       .00      .04      .22      3.8      6.6      2.7     1.1       .63      .20      .00      .00      .00
  9       .00      .03     2.7       3.5      6.1      2.5     1.1       .60      .18      .00      .00      .00
 10       .00      .03    11         3.2      5.8      2.4     1.1       .57      .16      .00      .00      .00
 
 11       .00      .03    11         3.0      5.5      2.3     1.1       .56      .12      .00      .00      .00
 12       .00      .03     4.3       5.2      5.3      2.1     1.1       .53      .16      .00      .00      .00
 13       .00      .03     2.3       9.2      5.0      2.1     1.1       .50      .36      .00      .00      .00
 14       .00      .04     1.7       7.5      4.8      2.1     1.1       .49      .27      .00      .00      .00
 15       .00      .04     1.3       7.7      4.5      1.9     1.0       .46      .24      .00      .00      .00
 
 16       .00      .04     1.1       6.8      4.5      1.8     1.0       .44      .20      .00      .00      .00
 17       .00      .05      .98      6.3      4.5      1.8      .97      .45      .16      .00      .00      .00
 18       .00      .05      .88      6.3      4.3      1.8      .96      .38      .12      .00      .00      .00
 19       .00      .05      .81      6.0      4.1      1.6     1.0       .36      .10      .00      .00      .00
 20       .00      .05      .78     11        4.0      1.6     1.1       .35      .08      .00      .00      .00
 
 21       .00     1.5       .73     11        3.9      1.5     1.0       .34      .06      .00      .00      .00
 22       .00      .96    57        12        3.8      1.5      .97      .33      .06      .00      .00      .00
 23       .00      .45    12        32        3.6      1.4      .96      .34      .06      .00      .00      .00
 24       .00      .35     5.2      20        3.5      1.4      .94      .37      .05      .00      .00      .00
 25       .00      .30     3.5      35        3.4      1.4      .90      .37      .03      .00      .00      .00
 
 26       .00      .27     2.7      78        3.4      1.3      .90      .33      .02      .00      .00      .00
 27       .00      .25     3.0      30        4.1      1.2      .89      .30      .02      .00      .00      .00
 28       .00      .25     5.2      21        3.8      1.2      .89      .27      .01      .00      .00      .00
 29       .02      .25     3.7      16        ---      1.2      .90      .22      .00      .00      .00      .00
 30       .19      .23     3.0      13        ---      1.1      .90      .20      .00      .00      .00      .00
 31       .08      ---     2.5      11        ---      1.1      ---      .18      ---      .00      .00      ---
 
TOTAL    0.29     5.63   139.21    395.7    151.3     62.8    30.78    14.98     4.03     0.00     0.00     0.00
MEAN     .009      .19     4.49     12.8     5.40     2.03     1.03      .48      .13     .000     .000     .000
MAX       .19      1.5       57       78      9.7      3.5      1.2      .87      .36      .00      .00      .00
MIN       .00      .03      .22      2.2      3.4      1.1      .89      .18      .00      .00      .00      .00
AC-FT      .6       11      276      785      300      125       61       30      8.0      .00      .00      .00
 


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     .037      .16     2.40     6.71     7.23     4.23     1.59      .68      .21     .005     .000     .000
MAX      .065      .19     4.49     12.8     9.00     6.44     2.15      .89      .28     .009     .000     .000
(WY)     1996     1997     1997     1997     1996     1996     1996     1996     1996     1996     1996     1996
MIN      .009      .12      .31      .66     5.40     2.03     1.03      .48      .13     .000     .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                         726.67                     804.72                                          
ANNUAL MEAN                            1.99                       2.20                       1.92               
HIGHEST ANNUAL MEAN                                                                          2.20           1997
LOWEST ANNUAL MEAN                                                                           1.63           1996
HIGHEST DAILY MEAN                   112     Feb 20              78     Jan 26             112       Feb 20 1996
LOWEST DAILY MEAN                       .00  Jul  7                .00  Oct  1                .00    Jul  7 1996
ANNUAL SEVEN-DAY MINIMUM                .00  Jul  7                .00  Oct  1                .00    Jul  7 1996
INSTANTANEOUS PEAK FLOW                                         215     Dec 22             360       Feb 20 1996
INSTANTANEOUS PEAK STAGE                                          3.11  Dec 22               3.47    Feb 20 1996
ANNUAL RUNOFF (AC-FT)               1440                       1600                       1390                  
10 PERCENT EXCEEDS                     4.0                        5.6                        4.5                
50 PERCENT EXCEEDS                      .34                        .24                        .25               
90 PERCENT EXCEEDS                      .00                        .00                        .00