10270985 ABELOUR DITCH NEAR BISHOP, CA

LOCATION.-Lat 37°20'30", long 118°28'41", SE 1/4 NE 1/4 sec.17, T.7 S., R.32 E., Inyo County, Hydrologic Unit 18090102, on left bank 400 ft upstream from Highway 168 road crossing, 0.6 mi downstream from outlet in penstock to Bishop Creek Powerplant No. 6, and 4.8 mi west 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 Unpublished records prior to October 1990 available in files of Southern California Edison Co. 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 4,750 ft above sea level, from topographic map. 
REMARKS.-Ditch diverts water from Bishop Creek Powerplant No. 6 Penstock for irrigation and domestic use. 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, 3.3 ft3/s, May 7, 1995; minimum daily, 0.43 ft3/s, Nov. 22-25, 1996. 

                  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       2.2      2.1      1.9      1.8      1.9      1.9      2.1      2.0      2.0      2.0      2.1      2.3
  2       2.2      2.0      2.0      1.8      1.9      1.9      2.2      2.0      1.9      2.3      2.0      2.3
  3       2.2      2.0      1.9      1.8      1.9      1.9      2.2      1.9      1.8      2.2      2.1      2.3
  4       2.2      2.1      1.9      1.8      2.1      2.0      2.2      2.0      1.9      2.2      2.0      2.3
  5       2.2      2.1      1.9      1.9      2.2      2.0      2.3      2.0      1.9      1.7      2.0      2.4
 
  6       2.2      2.1      1.9      1.9      2.2      2.0      2.3      1.9      1.9      2.0      2.0      2.4
  7       2.2      2.1      1.9      1.8      2.1      1.9      2.2      2.0      1.7      2.5      2.0      2.4
  8       2.2      2.1      1.8      1.8      2.1      1.9      2.2      2.0      2.0      2.5      1.6      2.3
  9       2.1      2.1      1.8      1.8      2.0      1.9      2.1      2.0      2.2      2.3      1.3      2.3
 10       2.1      2.1      1.8      1.8      1.9      1.9      2.0      2.0      1.9      2.1      2.0      2.3
 
 11       2.1      2.1      1.8      1.8      1.8      1.9      2.1      2.1      2.1      1.6      2.5      2.3
 12       2.2      2.0      1.9      1.7      1.8      1.9      2.1      2.1      2.2      2.3      2.4      2.3
 13       2.2      1.9      2.1      1.8      1.8      1.9      2.0      2.1      2.2      2.3      2.4      2.3
 14       2.2      1.9      2.1      1.8      1.8      1.9      2.0      2.2      2.0      2.2      2.4      2.2
 15       2.2      2.0      2.1      1.8      1.9      1.9      2.1      2.2      2.0      2.4      2.4      2.2
 
 16       2.2      2.0      2.1      1.8      1.9      1.9      2.1      2.1      2.0      2.3      2.3      2.3
 17       2.1      1.9      2.1      1.8      1.9      1.9      2.2      2.1      2.2      2.4      2.3      2.2
 18       2.2      1.9      2.1      1.8      1.9      1.9      2.2      2.1      2.2      2.3      2.3      2.2
 19       2.2      1.9      2.1      1.7      1.9      1.9      2.2      2.1      2.2      2.3      2.3      2.1
 20       2.1      1.8      2.1      1.8      1.9      1.9      2.1      2.1      2.0      2.3      2.2      2.2
 
 21       1.9      1.8      2.1      1.7      1.9      1.8      2.1      2.1      1.8      2.0      2.2      2.1
 22       2.0      1.9      2.1      1.7      1.9      1.8      2.0      2.2      2.0      2.4      2.2      2.2
 23       2.1      1.9      2.1      2.0      1.9      2.0      2.0      2.1      2.3      2.3      2.1      2.3
 24       2.5      1.9      2.1      2.0      1.9      2.3      2.0      2.1      2.3      2.3      2.1      2.3
 25       2.4      1.9      2.1      2.0      1.9      2.3      2.1      2.0      2.3      2.0      2.1      2.3
 
 26       2.6      1.8      2.4      2.0      1.9      2.2      2.2      2.0      2.2      1.9      2.2      2.3
 27       2.3      1.9      2.1      2.0      1.9      2.0      2.1      2.1      2.1      2.1      2.2      2.3
 28       2.0      1.8      2.1      2.0      1.9      2.0      2.2      2.1      1.9      2.1      2.2      2.3
 29       2.1      1.8      2.0      2.0      ---      2.0      2.1      2.1      1.7      2.1      2.2      2.1
 30       2.1      1.8      1.9      2.0      ---      2.0      2.1      2.1      1.8      2.0      2.2      2.3
 31       2.1      ---      1.9      2.0      ---      1.9      ---      2.1      ---      2.0      2.3      ---
 
TOTAL    67.6     58.7     62.2     57.4     54.1     60.6     63.8     64.0     60.7     67.4     66.6     68.1
MEAN     2.18     1.96     2.01     1.85     1.93     1.95     2.13     2.06     2.02     2.17     2.15     2.27
MAX       2.6      2.1      2.4      2.0      2.2      2.3      2.3      2.2      2.3      2.5      2.5      2.4
MIN       1.9      1.8      1.8      1.7      1.8      1.8      2.0      1.9      1.7      1.6      1.3      2.1
AC-FT     134      116      123      114      107      120      127      127      120      134      132      135


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1991 - 1998, BY WATER YEAR (WY)                                 
 
MEAN     2.02     1.81     1.88     1.93     1.92     1.94     2.03     2.12     2.17     2.21     2.26     2.22
MAX      2.19     2.20     2.01     2.30     2.11     2.06     2.41     2.42     2.47     2.62     2.73     2.52
(WY)     1994     1994     1998     1997     1997     1997     1996     1995     1993     1995     1996     1995
MIN      1.87     1.04     1.77     1.75     1.70     1.70     1.86     1.88     1.90     1.91     1.85     1.89
(WY)     1991     1997     1993     1992     1991     1991     1991     1991     1992     1992     1991     1991
 
SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1991 - 1998
 
ANNUAL TOTAL                         766.7                      751.2                                           
ANNUAL MEAN                            2.10                       2.06                       2.04               
HIGHEST ANNUAL MEAN                                                                          2.19           1996
LOWEST ANNUAL MEAN                                                                           1.85           1991
  HIGHEST DAILY MEAN                     2.9   Jan  6               2.6   Oct 26               3.3     May  7 1995
  LOWEST DAILY MEAN                      1.4   Sep  3               1.3   Aug  9                .43    Nov 22 1996
  ANNUAL SEVEN-DAY MINIMUM               1.8   Nov 24               1.8   Jan 16                .45    Nov 19 1996
ANNUAL RUNOFF (AC-FT)               1520                       1490                       1480                  
10 PERCENT EXCEEDS                     2.3                        2.3                        2.5                
50 PERCENT EXCEEDS                     2.1                        2.1                        2.0                
90 PERCENT EXCEEDS                     1.9                        1.8                        1.8