10270680 GREEN CREEK CONDUIT OUTLET NEAR BISHOP, CA

LOCATION.-Lat 37°10'14", long 118°33'50", unsurveyed, T.9 S., R.31 E., Inyo County, Hydrologic Unit 18090102, Inyo National Forest, on 
  right bank 75 ft downstream from outlet of diversion pipe, 0.1 mi upstream from South Lake, and 16.2 mi southwest of Bishop. 
PERIOD OF RECORD.-October 1990 to current year. Unpublished records prior to October 1990 available in files of Southern California 
  Edison Co. 
GAGE.-Water-stage recorder and Parshall flume. Elevation of gage is 9,800 ft above sea level, from topographic map. 
REMARKS.-Flow limited by size of diversion pipe from Green Creek. Water is used for power development downstream from South lake. See 
  schematic diagram of Bishop Creek Basin. 
COOPERATION.-Records collected by Southern California Edison Co., under general supervision of the U.S. Geological Survey, in connection 
  with a Federal Energy Regulatory Commission project. 
EXTREMES FOR PERIOD OF RECORD.-Maximum daily discharge, 6.9 ft3/s, June 9, 1996, no flow for many days each year. 

                  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       .36      .17      .18      .00      .00      .00      .00      .56      5.9      2.5     1.6       .66
  2       .33      .21      .21      .00      .00      .00      .00     1.3       5.5      2.4     1.5       .80
  3       .33      .20      .09      .00      .00      .00      .00     1.3       5.4      2.3     1.5      1.1 
  4       .33      .16      .00      .00      .00      .00      .00     1.4       5.6      2.3     1.5      1.1 
  5       .33      .16      .00      .00      .00      .00      .00     1.6       5.6      2.3     1.9      1.0 
  6       .33      .16      .00      .00      .00      .00      .00     1.8       5.3      2.4     2.0       .95
  7       .33      .16      .00      .00      .00      .00      .00     1.8       4.7      2.4     2.0       .85
  8       .33      .16      .00      .00      .00      .00      .00     1.9       4.5      2.4     1.9       .80
  9       .32      .16      .00      .00      .00      .00      .00     2.1       4.5      2.5     1.7       .75
 10       .30      .16      .00      .00      .00      .00      .00     2.3       4.2      2.5     1.6       .65

 11       .28      .16      .00      .00      .00      .00      .00     2.3       4.0      2.6     1.5       .57
 12       .25      .14      .00      .00      .00      .00      .00     2.4       4.0      2.6     1.4       .57
 13       .23      .12      .00      .00      .00      .00      .00     2.8       3.9      2.6     1.4       .56
 14       .23      .10      .00      .00      .00      .00      .00     3.1       4.1      2.5     1.3       .49
 15       .23      .14      .00      .00      .00      .00      .00     3.5       4.0      2.4     1.2       .45
 16       .23      .17      .00      .00      .00      .00      .00     3.6       3.6      2.4     1.2       .45
 17       .23      .37      .00      .00      .00      .00      .00     3.7       3.4      2.2     1.2       .42
 18       .21      .15      .00      .00      .00      .00      .00     4.0       3.6      2.2     1.1       .52
 19       .19      .25      .00      .00      .00      .00      .00     4.0       3.8      2.1     1.1       .65
 20       .21      .40      .00      .00      .00      .00      .00     3.9       3.9      2.1      .95      .63

 21       .21      .37      .00      .00      .00      .00      .00     3.8       3.8      2.0      .92      .62
 22       .21      .41      .00      .00      .00      .00      .00     3.7       3.6      2.1      .88      .60
 23       .21      .49      .00      .00      .00      .00      .00     3.5       3.5      2.5      .86      .54
 24       .21      .49      .00      .00      .00      .00      .00     3.5       3.3      2.7      .82      .51
 25       .13      .41      .00      .00      .00      .00      .00     3.3       3.2      2.5      .82      .54
 26       .01      .33      .00      .00      .00      .00      .00     3.2       3.2      2.2      .80      .62
 27       .03      .28      .00      .00      .00      .00      .00     3.3       3.1      2.0      .74      .62
 28       .04      .23      .00      .00      .00      .00      .00     3.7       3.0      2.0      .70      .62
 29       .06      .23      .00      .00      ---      .00      .00     4.4       2.9      2.0      .67      .59
 30       .12      .23      .00      .00      ---      .00      .00     5.0       2.7      1.9      .66      .55
 31       .11      ---      .00      .00      ---      .00      ---     5.6       ---      1.7      .66      ---

TOTAL    6.92     7.17     0.48     0.00     0.00     0.00     0.00    92.36    121.8     71.3    38.08    19.78
MEAN      .22      .24     .015     .000     .000     .000     .000     2.98     4.06     2.30     1.23      .66
MAX       .36      .49      .21      .00      .00      .00      .00      5.6      5.9      2.7      2.0      1.1
MIN       .01      .10      .00      .00      .00      .00      .00      .56      2.7      1.7      .66      .42
AC-FT      14       14      1.0      .00      .00      .00      .00      183      242      141       76       39



STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1991 - 1997, BY WATER YEAR (WY)                                 

MEAN     .032     .034     .002     .000     .000     .000     .002      .91     2.35     1.74      .66      .24
MAX       .22      .24     .015     .000     .000     .000     .015     2.98     4.46     4.04     1.39      .66
(WY)     1997     1997     1997     1991     1991     1991     1992     1997     1996     1993     1993     1997
MIN      .000     .000     .000     .000     .000     .000     .000     .000      .96      .45     .083     .000
(WY)     1991     1991     1991     1991     1991     1991     1991     1991     1991     1992     1995     1995

SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1991 - 1997

ANNUAL TOTAL                         312.27                     357.89                                          
ANNUAL MEAN                             .85                        .98                        .50               
HIGHEST ANNUAL MEAN                                                                           .98           1997
LOWEST ANNUAL MEAN                                                                            .18           1991
HIGHEST DAILY MEAN                     6.9   Jun  9               5.9   Jun  1               6.9     Jun  9 1996
LOWEST DAILY MEAN                       .00  Jan  1                .00  Dec  4                .00    Oct  1 1990
ANNUAL SEVEN-DAY MINIMUM                .00  Jan  1                .00  Dec  4                .00    Oct  1 1990
ANNUAL RUNOFF (AC-FT)                619                        710                        362                  
10 PERCENT EXCEEDS                     3.1                        3.4                        1.7                
50 PERCENT EXCEEDS                      .21                        .23                        .00               
90 PERCENT EXCEEDS                      .00                        .00                        .00