10295500  LITTLE WALKER RIVER NEAR BRIDGEPORT, CA

LOCATION.-Lat 38°21'30", long 119°26'30", in NW 1/4 NW 1/4 sec.22, T.6 N., R.23 E., Mono County, Hydrologic Unit 16050302, in Toiyabe 
  National Forest, on right bank, 0.8 mi North of Sonora Junction, 1.5 mi upstream from mouth, and 14 mi northwest of Bridgeport.
DRAINAGE AREA.-63.1 mi2.
PERIOD OF RECORD.-April to August 1910, October 1944 to September 1986, October 1995 to current year.  Prior to October 1958, published 
  as East Fork Walker River near Bridgeport.
REVISED RECORDS.-WDR 82-1:  Drainage area.
GAGE.-Water-stage recorder.  Elevation of gage is 6,790 ft above sea level, from topographic map.  April to August 1910, nonrecording gage at 
  site 1 mi upstream at different datum.  Prior to Jan. 2, 1997, at same site, at datum 1.0 ft higher.
REMARKS.-Records fair except for estimated daily discharges, which are poor.  Small diversions above station. These data are reviewed and 
  provided by the Nevada District Office, U.S. Geological Survey.

                  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        20      e21      e25     e250      e50       48       84       97      326      125       64       30
   2        20      e21      e20     e600       49       48       78      100      321      117       60       34
   3       e20      e21      e25     e350      e49       49       75      105      309      115       58       33
   4       e20      e21      e27     e200      e48      e48       71      117      299      117       58       31
   5       e20      e18      e35     e145      e48       47       68      122      270      117       57       30
 
   6       e19      e20      e28     e119      e47       47       64      131      247      116       56       30
   7       e18      e21      e27      e91      e46       41       63      173      248      119       54       29
   8       e18      e21      e27      e81      e46       45       64      234      242      122       52       28
   9       e18      e21      e27      e71      e45       49       63      260      251      119       52       28
  10       e18      e21      e25      e65      e45       56       63      284      248      122       50       27
 
  11       e18      e21      e29      e60      e44       62       60      302      222      117       47       27
  12       e18      e20      e34      e57      e44       60       58      317      250      110       46       27
  13       e17      e20      e35      e55      e43       58       60      323      235      106       46       26
  14       e17      e20      e32      e55       46       65       64      310      246      106       45       26
  15       e17      e20      e29      e55       48       74       72      318      218      108       43       26
 
  16       e17      e19      e27      e55       49       71       82      329      209      103       42       26
  17       e17      e40      e25      e55       47       65       91      340      224       97       41       25
  18       e19      e48      e26      e55       43       69       96      325      253       92       40       25
  19       e22      e35      e27      e55       44       75      106      324      260       90       39       25
  20       e20      e27      e24      e55       40       77      113      316      264       90       39       25
 
  21       e19      e26      e23      e55       42       74      146      296      233      106       38       25
  22       e20      e40      e20      e55       38       76      171      282      210      121       36       24
  23       e21      e26      e30      e55       38       85      136      275      189      108       36       24
  24       e21      e25      e35      e58       37       89       90      256      171       91       36       24
  25       e23      e24      e35      e70       43       90       98      233      168       82       35       25
 
  26       e22      e23      e40      e59       44       97      100      225      164       79       33       25
  27       e23      e22      e37      e54       45      102      102      235      158       76       33       23
  28       e20      e21      e35      e53       44      102       98      285      149       76       32       23
  29       e23      e20      e40      e53      ---       98       99      292      141       75       31       22
  30       e25      e20      e50      e52      ---       96       95      325      135       79       31       22
  31       e22      ---      e70      e50      ---       94      ---      351      ---       68       30      ---
 
 TOTAL     612      723      969     3143     1252     2157     2630     7882     6860     3169     1360      795
 MEAN     19.7     24.1     31.3      101     44.7     69.6     87.7      254      229      102     43.9     26.5
 MAX        25       48       70      600       50      102      171      351      326      125       64       34
 MIN        17       18       20       50       37       41       58       97      135       68       30       22
 AC-FT    1210     1430     1920     6230     2480     4280     5220    15630    13610     6290     2700     1580
 
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1945 - 1997, BY WATER YEAR (WY)                                 
 
 MEAN     20.3     21.8     22.3     22.9     22.9     27.3     51.5      127      177      103     39.6     23.3
 MAX      47.7     65.3     98.4      101     58.9     85.7     97.0      323      388      297      137     55.5
 (WY)     1983     1951     1951     1997     1986     1986     1986     1969     1983     1967     1983     1983
 MIN      6.79     9.84     9.10     9.26     11.0     10.8     20.9     16.5     36.6     9.48     5.41     4.95
 (WY)     1978     1949     1949     1949     1977     1977     1976     1977     1976     1977     1977     1977
 
 SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1945 - 1997
 
 ANNUAL TOTAL                       29173                      31552                                             
 ANNUAL MEAN                           79.7                       86.4                       55.0                
 HIGHEST ANNUAL MEAN                                                                        113              1983
 LOWEST ANNUAL MEAN                                                                          13.9            1977
   HIGHEST DAILY MEAN                   730     May 16             600     Jan  2             730       May 16 1996
   LOWEST DAILY MEAN                     17     Oct 13              17     Oct 13               2.6     Aug 16 1977
   ANNUAL SEVEN-DAY MINIMUM              17     Oct 11              17     Oct 11               3.0     Aug 11 1977
   INSTANTANEOUS PEAK FLOW                                        2540     Jan  2            2540       Jan  2 1997
   INSTANTANEOUS PEAK STAGE                                          5.70  Jan  2               5.70    Jan  2 1997
 ANNUAL RUNOFF (AC-FT)              57860                      62580                      39860                  
 10 PERCENT EXCEEDS                   199                        246                        146                  
 50 PERCENT EXCEEDS                    36                         52                         26                  
 90 PERCENT EXCEEDS                    20                         21                         13                  
 
   e  Estimated.