10310000  WEST FORK CARSON RIVER AT WOODFORDS, CA

LOCATION.-Lat 38°46'11", long 119°49'58", in NW 1/4 SE 1/4 sec.34, T.11 N., R.19 E., Alpine County, Hydrologic Unit 16050201, in Toiyabe National Forest, on left bank, 0.3 mi downstream from bridge on State Highway 88-89, 0.6 mi southwest of Woodfords, 3.8 mi downstream from Willow Creek, and at mi 21.17 from mouth.
DRAINAGE AREA.-65.4 mi2.
PERIOD OF RECORD.-October 1900 to May 1907, 1910-11 (fragmentary), October 1938 to current year.  January 1890 to March 1892, June 1907 to September 1920 (except parts of 1910-11), at site 0.7 mi downstream; records not equivalent owing to diversions for irrigation.  
REVISED RECORDS.-WDR NV-79-1:  Drainage area.
GAGE.-Water-stage recorder.  Datum of gage is 5,754.5 ft above sea level.  Prior to Oct. 1, 1938, nonrecording gage at about the same site at different datum.  Oct. 1, 1938, to Nov. 11, 1958, water-stage recorder at same site at datum 1.02 ft lower.  Nov. 13, 1958, to Jan. 30, 1963, water-stage recorder at site 150 ft downstream at datum 3.06 ft lower. Gage moved 200 ft upstream March 1997 at same datum.
REMARKS.-Records fair.  One small diversion above station for irrigation.  Flow slightly regulated by several small reservoirs, total capacity, about 1,500 acre-ft.  These data are reviewed and provided by the Nevada District Office, U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 8,100 ft3/s, Jan. 1, 1997, gage height, 15.36 ft; minimum daily, 5.3 ft3/s, Sept. 2, 1997.
EXTREMES OUTSIDE PERIOD OF RECORD.-Flood of Dec. 11, 1937, reached a stage of 8.0 ft, at different datum, from floodmarks, discharge, 3,500 ft3/s, on basis of slope-area measurement of peak flow.
EXTREMES FOR CURRENT YEAR.-Peak discharges greater than base discharge at 500 ft3/s and maximum (*):
  Date	Time	Discharge
  (ft3/s)	Gage height
  (ft)		Date	Time	Discharge
  (ft3/s)	Gage height
  (ft)
  Mar. 24		1800		562		12.40		June 7		0345		*1,130		*13.24
  May 1		2230		873		12.96					

                  DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

                                               DAILY MEAN VALUES
 DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
 
   1        25       35       28       28       40       54      140      699      523      402       99       38
   2        26       28       25       27       40       55      131      695      596      391       94       37
   3        27       25       26       25       48       58      127      644      549      391       90       38
   4        25       25       28       20       48       57      121      626      518      364       86       41
   5        24       24       26       29       48       56      117      561      502      354       83       42
 
   6        25       24       29       35       47       56      114      465      594      367       81       54
   7        26       24       28       28       43       60      108      424      866      360       78       48
   8        26       24       24       28       39       56      105      531      723      350       75       42
   9        29       23       26       28       43       54      106      584      639      342       70       71
  10        33       24       28       28       44       56      108      497      630      328       67       56
 
  11        33       25       28       29       45       60      105      423      609      292       66       47
  12        29       24       27       30       46       63       98      367      603      256       64       62
  13        28       24       29       28       46       63       93      309      647      249       63       57
  14        28       24       27       31       45       63       92      287      667      235       66       42
  15        28       24       26       50       45       70       86      321      678      213       70       40
 
  16        27       25       28       62       49       78       82      345      712      202       62       38
  17        27       26       28       85       48       82       82      276      649      209       59       37
  18        26       25       27       72       47       88       96      284      615      210       57       36
  19        26       30       26       52       47       96      130      348      653      196       55       35
  20        26       29       26       55       47      110      190      378      631      186       53       35
 
  21        26       28       28       54       43      119      285      351      623      185       51       35
  22        25       28       25       50       44      155      404      316      609      195       49       35
  23        25       27       26       47       46      362      449      371      539      186       47       45
  24        25       27       26       44       48      523      329      394      492      188       46       59
  25        25       29       26       42       50      402      310      531      533      170       44       64
 
  26        25       35      e26       41       49      285      327      424      530      146       54       57
  27        25       32       25       36       51      238      396      322      464      135       56       64
  28        25       30       25       41       53      203      478      340      445      127       53       51
  29        25       30       25       43      ---      176      562      366      454      121       41       52
  30        34       29       25       39      ---      159      661      335      441      116       39       49
  31        39      ---       26       41      ---      151      ---      411      ---      107       39      ---
 
 TOTAL     843      807      823     1248     1289     4108     6432    13225    17734     7573     1957     1407
 MEAN     27.2     26.9     26.5     40.3     46.0      133      214      427      591      244     63.1     46.9
 MAX        39       35       29       85       53      523      661      699      866      402       99       71
 MIN        24       23       24       20       39       54       82      276      441      107       39       35
 AC-FT    1670     1600     1630     2480     2560     8150    12760    26230    35180    15020     3880     2790
 
   e  Estimated.
  10310000  WEST FORK CARSON RIVER AT WOODFORDS, CA-Continued
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1901 - 1998, BY WATER YEAR (WY)                                 
 
 MEAN     27.4     40.5     47.9     54.8     58.2     79.1      208      379      264      109     49.4     31.3
 MAX      79.1      321      347      621      259      283      502      924      996      525      223      120
 (WY)     1983     1951     1951     1997     1963     1986     1907     1906     1983     1907     1907     1983
 MIN      8.27     13.1     12.8     13.7     16.3     18.2     46.6     56.4     37.4     18.1     11.1     7.00
 (WY)     1989     1991     1991     1961     1977     1977     1975     1977     1992     1977     1977     1977
 SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1901 - 1998
 
 ANNUAL TOTAL                       64177                      57446                                             
 ANNUAL MEAN                          176                        157                        112                  
 HIGHEST ANNUAL MEAN                                                                        290              1907
 LOWEST ANNUAL MEAN                                                                          26.1            1977
   HIGHEST DAILY MEAN                  5500     Jan  2             866     Jun  7            5500       Jan  2 1997
   LOWEST DAILY MEAN                     23     Nov  9              20     Jan  4               5.3     Sep  2 1977
   ANNUAL SEVEN-DAY MINIMUM              24     Nov  4              24     Nov  4               5.4     Sep  5 1977
   INSTANTANEOUS PEAK FLOW                                        1130     Jun  7            8100       Jan  1 1997
   INSTANTANEOUS PEAK STAGE                                         13.24  Jun  7              15.36    Jan  1 1997
 ANNUAL RUNOFF (AC-FT)             127300                     113900                      81490                  
 10 PERCENT EXCEEDS                   384                        499                        300                  
 50 PERCENT EXCEEDS                    89                         55                         47                  
 90 PERCENT EXCEEDS                    26                         26                         17