10290500  ROBINSON CREEK AT TWIN LAKES OUTLET, NEAR BRIDGEPORT, CA

LOCATION.-Lat 38°10'20", long 119°19'25", in SE 1/4 SE 1/4 sec.28, T.4 N., R.24 E., Mono County, Hydrologic Unit 16050301, on left bank, 
  0.2 mi downstream from Lower Twin Lake, and 8 mi southwest of Bridgeport.
DRAINAGE AREA.-39.1 mi2.
PERIOD OF RECORD.-October 1953 to September 1975, May 1992 to September 1994 (irrigation season only), October 1994 to current year.
GAGE.-Water-stage recorder. Elevation of gage is 7,050 ft above sea level, from topographic map.
REMARKS.-Records good, except for estimated daily discharges, which are poor.  Flow regulated by Upper and Lower Twin Lakes.  No flow 
  for many days in some years. These data are reviewed and provided by the Nevada District Office, U.S. Geological Survey.
REVISIONS.-WSP 1927:  Drainage area.

                  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      29        7.9       32       67       62       42       68      118      281      184      125       74
   2      29        7.9       30      352       59       39       67      117      298      171      121       74
   3      28        7.7       28      998       56       40       65      115      293      157      115       71
   4      28        7.6       28      613       54       40       65      114      290      150      111       69
   5      27        7.5       36      412       53       40       63      118      297      147      110       70
 
   6      26        7.5       38      310       52       39       61      123      296      149      110       69
   7      26        7.7       35      229       50       39       59      130      266      154      110       68
   8      25        7.7       35      173       50       39       58      139      249      159      112       69
   9      25        7.7       34      132       50       39       56      145      248      164      115       68
  10      24        7.6       39      107       49       39       55      155      246      168      116       70
 
  11      25        7.7       46      103       48       39       55      168      238      177      114       67
  12      24        7.7       45      101       47       39       54      185      230      184      109       65
  13      24        7.7       44      102       47       39       53      203      216      183      103       65
  14      23        7.7       39      100       46       39       53      222      208      177       97       64
  15      23        7.8       35       93       45       39       53      235      202      173       92       59
 
  16      23        7.7       33       87       45       39       54      246      193      174       88       55
  17      20        6.9       32       83       46       40       56      252      191      173       85       55
  18      17        4.6       31       79       46       41       60      254      205      167       83       54
  19      15        4.4       29       75       45       41       67      249      239      160       81       53
  20      15        4.4       29       76       44       42       75      250      270      151       80       49
 
  21      16        5.1       34       75       44       43       84      245      290      145       76       45
  22      17       10         47       74       44       45       98      235      294      144       75       41
  23      16       18         45       79       43      e45      110      225      283      149       73       38
  24      13       25         40       74       42      e47      115      212      264      159       71       37
  25       9.4     29         36       88       42      e50      116      198      243      162       69       34
 
  26       8.8     31         35       94       42      e56      113      184      230      158       72       32
  27       8.5     32         36       89       42       57      112      173      223      151       71       32
  28       8.3     33         34       82       42       58      113      171      216      143       69       32
  29       8.0     33         36       77      ---       61      115      180      206      136       69       32
  30       7.9     32         40       71      ---       64      118      204      198      134       67       32
  31       7.9      ---       39       65      ---       68      ---      239      ---      128       72      ---
 
 TOTAL   596.8    391.5     1120     5160     1335     1388     2291     5804     7403     4931     2861     1643
 MEAN     19.3     13.1     36.1      166     47.7     44.8     76.4      187      247      159     92.3     54.8
 MAX        29       33       47      998       62       68      118      254      298      184      125       74
 MIN       7.9      4.4       28       65       42       39       53      114      191      128       67       32
 AC-FT    1180      777     2220    10230     2650     2750     4540    11510    14680     9780     5670     3260
 
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1954 - 1997, BY WATER YEAR (WY)                                 
 
 MEAN     20.8     8.34     6.82     16.4     15.7     16.8     47.5      107      190      162     98.2     51.3
 MAX      37.5     25.0     36.1      166     63.4     44.8     79.4      187      349      400      199     89.0
 (WY)     1970     1968     1997     1997     1963     1997     1959     1997     1969     1995     1995     1974
 MIN      7.00      .67     .000     .000     .000     .000     22.3     59.1     68.2     62.0     35.1     15.9
 (WY)     1995     1958     1954     1954     1954     1955     1975     1955     1992     1992     1992     1992
 
 SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1954 - 1997
 
 ANNUAL TOTAL                       29243.3                    34924.3                                           
 ANNUAL MEAN                           79.9                       95.7                       63.9                
 HIGHEST ANNUAL MEAN                                                                        100              1995
 LOWEST ANNUAL MEAN                                                                          33.8            1961
   HIGHEST DAILY MEAN                   378     May 18             998     Jan  3             998       Jan  3 1997
   LOWEST DAILY MEAN                      4.4   Nov 19               4.4   Nov 19                .00    Nov  3 1953
   ANNUAL SEVEN-DAY MINIMUM               5.8   Nov 15               5.8   Nov 15                .00    Nov  3 1953
   INSTANTANEOUS PEAK FLOW                                        1170     Jan  3            1170       Jan  3 1997
   INSTANTANEOUS PEAK STAGE                                          5.44  Jan  3               5.44    Jan  3 1997
 ANNUAL RUNOFF (AC-FT)              58000                      69270                      46270                  
 10 PERCENT EXCEEDS                   211                        224                        161                  
 50 PERCENT EXCEEDS                    39                         65                         31                  
 90 PERCENT EXCEEDS                    18                         18                           .30               
 
   e  Estimated.