10336676 WARD CREEK AT STATE HIGHWAY 89, NEAR TAHOE PINES, CA

LOCATION.-Lat 39°07'56", long 120°09'24", in NW 1/4 SE 1/4 sec.24, T.15 N., R.16 E., Placer County, Hydrologic Unit 16050101, Tahoe National Forest, on right bank 165 ft downstream from State Highway 89 Bridge, 2.1 mi north of Tahoe Pines, and 2.6 mi southwest of Tahoe City. 
DRAINAGE AREA.-9.70 mi2. 
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.-October 1972 to current year. 
GAGE.-Water-stage recorder. Elevation of gage is 6,230 ft above sea level, from topographic map. 
REMARKS.-Records good except for estimated days, which are fair. Minor diversion for local water supply upstream from station. See schematic diagram of Truckee River Basin. 
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 2,530 ft3/s, Jan. 1, 1997, gage height, 9.36 ft; no flow for many days during   1977-78, 1981, 1988, 1994. 
EXTREMES FOR CURRENT YEAR.-Peak discharges greater than base discharge of 100 ft3/s, or maximum: 
  			Discharge	Gage height			Discharge	Gage height
  	Date	Time	(ft3/s)	(ft)	Date	Time	(ft3/s)	(ft)
  	Mar. 24	0615	234	5.73	May 25	1100	154	5.45
  	May 2	2030	163	5.48	June 7	0030	370	6.11

                  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      e1.4      1.8      2.8     e2.7     e5.2      3.9       29      111      134      114     15       e2.7
  2       1.7      1.7      2.5     e2.7     e5.2      3.9       27      132      159      112     14       e2.6
  3       3.7      1.7      2.6     e2.7     e5.2      4.1       25      119      158      103     13        2.4
  4       1.6      1.7      2.5     e2.7     e5.2      4.4       23      107      156      100     12        2.4
  5       1.5      1.7      2.8     e2.7     e5.1      4.1       22       99      163      101     12        2.9
 
  6       1.5      1.6      2.6     e2.7     e5.1      4.5       21       95      200      109     11        3.7
  7       1.6      1.6     e3.0     e2.7     e5.1      7.8       20       85      280      108     10        2.8
  8       1.6      1.6     e3.6     e2.5     e5.1      3.7       19       98      220      102      9.5      2.8
  9       5.1      1.6     e3.6     e2.5     e5.1      3.6       19      121      206       98      8.9      8.0
 10       4.6      1.6      3.5     e2.5     e5.0      3.8       19       99      214       89      8.4      5.7
 
 11       3.4      1.7     e3.5     e2.5     e5.0      4.3       18       77      204       73      7.9      4.2
 12       2.8      1.7     e3.4    e10       e5.0      4.8       17       75      225       63      7.5      3.7
 13       2.6      1.7     e3.3     e7.0     e5.0      4.6       18       68      252       61      7.1      3.5
 14       2.9      1.7     e3.3     e5.0     e5.0      4.7       16       60      241       55      8.8     e3.3
 15       2.9      1.7      3.2    e15       e5.0      6.0       17       62      203       50      8.6     e3.1
 
 16       2.6      1.7      2.8    e30       e5.0      8.1       15       65      218       49      7.2      2.8
 17       2.4      1.7      3.0    e60       e5.0      9.3       16       54      178       49      6.6      2.6
 18       2.2      1.7      2.5    e30       e5.0     10         19       56      191       47      6.2      2.5
 19       2.1      5.1      2.5    e25       e5.0     11         25       65      206       44      5.9      2.4
 20       2.0      3.4     e2.5    e18       e5.0     14         33       72      193       39      5.5      2.4
 
 21       2.0      2.7     e2.5     17       e4.8     16         48       71      204       36      5.2      2.4
 22       1.8      2.5     e2.5     11       e4.8     49         63       70      195       35      4.8      2.4
 23       1.8      3.3     e2.5      7.2     e4.6     82         74       75      167       32      4.5      2.4
 24       1.8      3.3     e2.7      6.6     e4.6    171         63       88      161       30      4.3      2.4
 25       1.7      3.5     e2.7      6.3     e4.4     83         56      127      179       27      4.1      2.4
 
 26       1.7      6.0     e2.9      6.0     e4.2     67         56       90      162       25      3.9      3.9
 27       1.7      4.1     e3.1      6.0     e4.0     55         64       75      138       22      3.9      5.6
 28       1.7      3.4     e3.1      5.8     e4.0     47         73       72      138       21     e3.8      4.1
 29       1.8      3.3     e2.9     e5.6      ---     39         83       72      137       19     e3.6     e3.9
 30       1.8      3.0     e2.9     e5.4      ---     35         97       70      129       18     e3.2      3.8
 31       1.8      ---     e2.9      5.2      ---     32        ---       89      ---       17     e2.9      ---
 
TOTAL    69.8     73.8     90.2    311.0    136.7    796.6     1095     2619     5611     1848    229.3     99.8
MEAN     2.25     2.46     2.91     10.0     4.88     25.7     36.5     84.5      187     59.6     7.40     3.33
MAX       5.1      6.0      3.6       60      5.2      171       97      132      280      114       15      8.0
MIN       1.4      1.6      2.5      2.5      4.0      3.6       15       54      129       17      2.9      2.4
AC-FT     138      146      179      617      271     1580     2170     5190    11130     3670      455      198
  
    e Estimated.


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1973 - 1998, BY WATER YEAR (WY)                                 
 
MEAN     3.26     11.3     13.1     18.4     15.6     21.9     42.4     90.3     76.7     23.8     4.13     1.84
MAX      22.4     73.9     92.5      144     77.7     80.3     89.2      177      265      123     26.9     7.93
(WY)     1983     1982     1982     1997     1982     1986     1989     1996     1983     1983     1983     1983
MIN       .15     1.06      .80     1.10     1.24     2.52     8.06     18.7     4.59     1.10     .003     .005
(WY)     1978     1978     1977     1991     1991     1977     1975     1977     1992     1994     1977     1977
 
SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1973 - 1998
 
ANNUAL TOTAL                       13451.2                    12980.2                                           
ANNUAL MEAN                           36.9                       35.6                       26.9                
HIGHEST ANNUAL MEAN                                                                         59.0            1983
LOWEST ANNUAL MEAN                                                                           5.29           1977
  HIGHEST DAILY MEAN                  1390     Jan  1             280     Jun  7            1390       Jan  1 1997
  LOWEST DAILY MEAN                      1.2   Sep  8               1.4   Oct  1                .00    Aug  4 1977
  ANNUAL SEVEN-DAY MINIMUM               1.3   Sep  5               1.6   Nov  4                .00    Aug  4 1977
  INSTANTANEOUS PEAK FLOW                                         370     Jun  7            2530       Jan  1 1997
  INSTANTANEOUS PEAK STAGE                                          6.11  Jun  7               9.36    Jan  1 1997
ANNUAL RUNOFF (AC-FT)              26680                      25750                      19490                  
10 PERCENT EXCEEDS                    92                        113                         77                  
50 PERCENT EXCEEDS                    12                          5.2                        6.8                
90 PERCENT EXCEEDS                     1.6                        2.0                         .92