10338500  DONNER CREEK AT DONNER LAKE, NEAR TRUCKEE, CA

LOCATION.--Lat 39°19'25", long 120°14'00", in SW 1/4 NW 1/4 sec.17, T.17 N., R.16 E., Nevada County, Hydrologic
   Unit 16050102, in Donner Memorial State Park, on left bank 10 ft downstream from bridge on Donner Memorial
   State Park road, 0.2 mi downstream from outlet of Donner Lake, 0.7 mi upstream from Cold Creek, and 2.5 mi
   west of Truckee.

DRAINAGE AREA.--14.3 mi2.

PERIOD OF RECORD.--November 1909 to August 1910, January 1929 to October 1935, January 1936 to March 1938, July
   to October 1938, January 1939 to February 1943, June 1943 to December 1953, May 1955 to December 1957,
   October 1958 to current year.  Monthly discharge only prior to October 1958, published in WSP 1314 and 1734.

REVISED RECORDS.--WDR CA-79-3:  Drainage area.

GAGE.--Water-stage recorder and concrete control, completed Oct. 3, 1989.  Datum of gage is 5,924.40 ft above sea
   level.  Nov. 1, 1909, to Aug. 31, 1910, nonrecording gage at different datum.  January 1929 to December 1957,
   water-stage recorder at same site at unknown datum.

REMARKS.--Records good except estimated discharges, which are fair.  Flow completely regulated at dam at outlet
   of Donner Lake (station 10338400) since 1928.  See schematic diagram of Truckee River basin.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 707 ft3/s, Feb. 19, 1986; gage height, 4.83 ft, maximum gage
   height, 5.77 ft, May 18, 1996; no flow at times in many years.


                  DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1995 TO SEPTEMBER 1996
                                               DAILY MEAN VALUES

DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

  1       .74     44        7.7       34       39       89       79      144     16       32        6.3      4.3
  2       .48     42        7.6       34       37       83       84      176     16        2.7      6.2      4.3
  3       .35     40        7.3       33       34       81       84      177     15        1.8      5.9      4.0
  4       .25     38        8.0       32       51       82       84      177     49        1.4      5.9      4.0
  5      2.4      44        8.4       31      129       82       84      147     98        3.7      5.9      4.1

  6      4.3      52        8.3       29      153       79       85      123     98        6.1      5.9      4.2
  7      3.8      45        8.4       27      149       76       87      123     98        6.0      5.8      4.3
  8      3.5      40        8.0       26      143       72       89      103     99        5.9      5.7      4.0
  9      3.2      36        7.7       26      137       70       95       86     71        5.9      5.7     28
 10      3.1      32        7.4       25      132       70       98       86     23        6.1      4.8     65

 11      2.8      29       10         24      127       70      101       86     18        5.9      4.7     78
 12     23        26       58         24      122       70      101       88     14        6.1      4.7     77
 13     55        23       87         22      118       69      101       91     14        6.3      4.7     76
 14     54        21       83         22      114       67      101       75     13        6.3      4.7     74
 15     52        19       77         22      111       65      101       59     12        6.3      4.7     70

 16     50        17       71         29      112       64      107     e274     12        6.3      4.8     67
 17     49        16       65         36      120       64      109     e540     12        6.3      5.3     65
 18     29        14       59         38      126       66      111     e540     12        6.3      5.5     63
 19     14        14       53         41      137       68      110      533     11        6.3      5.1     62
 20      7.8      13       48         40      147       73      109      302      9.7      6.3      4.7     61

 21      4.3      12       44         42      146       78      106      143      9.4      6.3      4.7     59
 22      3.7      11       40         42      141       83      102      173      8.9      6.3      4.7     58
 23      3.2      10       37         41      133       84      101      196      8.0      6.3      4.7     56
 24      2.8       9.3     34         45      126       83       99      193      7.5      6.3      4.7     55
 25      2.6       9.1     32         50      121       81      104      190      7.3      6.3      4.7     54

 26      2.5       9.6     30         46      114       78      108      162      7.4      6.3      4.7     53
 27     27         9.0     28         49      108       77      112       80      7.1      6.3      4.7     52
 28     54         8.6     26         49      102       79      114       62      6.8      6.3      4.7     51
 29     52         8.4     24         45       96       79      115       30     35        6.3      4.7     50
 30     50         7.9     26         43      ---       78      116       17     53        6.3      4.6     49
 31     47         ---     33         41      ---       77      ---       17      ---      6.3      4.3      ---

TOTAL  607.82    699.9   1043.8     1088     3325     2337     2997     5193    861.1    203.3    158.2   1356.2
MEAN     19.6     23.3     33.7     35.1      115     75.4     99.9      168     28.7     6.56     5.10     45.2
MAX        55       52       87       50      153       89      116      540       99       32      6.3       78
MIN       .25      7.9      7.3       22       34       64       79       17      6.8      1.4      4.3      4.0
AC-FT    1210     1390     2070     2160     6600     4640     5940    10300     1710      403      314     2690

  e Estimated.


                       10338500  DONNER CREEK AT DONNER LAKE, NEAR TRUCKEE, CA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1929 - 1996, BY WATER YEAR (WY)

          OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

MEAN     29.4     27.7     30.4     29.9     32.2     36.2     51.5     86.7     46.1     12.5     8.16     24.6
MAX      85.7      195      214      174      197      182      144      243      244     67.2     52.7     99.1
(WY)     1973     1951     1951     1970     1986     1986     1940     1952     1983     1934     1932     1983
MIN      .000     .000     .000     .000     .000     .000     .000     .000     .000     .000     .000     .000
(WY)     1930     1930     1930     1929     1929     1929     1929     1929     1929     1937     1936     1930

SUMMARY STATISTICS           FOR 1995 CALENDAR YEAR        FOR 1996 WATER YEAR           WATER YEARS 1929 - 1996

ANNUAL TOTAL                       26953.43                   19870.32
ANNUAL MEAN                           73.8                       54.3                       35.5
HIGHEST ANNUAL MEAN                                                                         83.3            1982
LOWEST ANNUAL MEAN                                                                           7.71           1977
HIGHEST DAILY MEAN                   321     May  2             540     May 17             700       Nov 21 1950
LOWEST DAILY MEAN                       .25  Oct  4                .25  Oct  4                .00    Jan  1 1929
ANNUAL SEVEN-DAY MINIMUM                .82  Sep 28               1.8   Oct  1                .00    Jan  1 1929
INSTANTANEOUS PEAK FLOW                                         544     May 18             707       Feb 19 1986
INSTANTANEOUS PEAK STAGE                                          5.77  May 18               5.77    May 18 1996
ANNUAL RUNOFF (AC-FT)              53460                      39410                      25720
10 PERCENT EXCEEDS                   173                        117                         98
50 PERCENT EXCEEDS                    55                         39                         12
90 PERCENT EXCEEDS                     3.5                        4.7                         .00