11413510  NEW COLGATE POWERPLANT NEAR FRENCH CORRAL, CA

LOCATION.--Lat 39°19'51", long 121°11'23", in NE 1/4 SE 1/4 sec.16, T.17 N., R.7 E., Yuba County, Hydrologic Unit
   18020125, at powerplant on right bank of Yuba River, 0.3 mi upstream from Dobbins Creek, and 2.3 mi northwest
   of French Corral.
PERIOD OF RECORD.--October 1966 to current year.  Prior to October 1969, published as "Colgate Powerplant."

GAGE.--Recorded output from powerplant turbines.
REMARKS.--Water is diverted from North Yuba River at New Bullards Bar Reservoir (station 11413515).  Colgate
   Powerplant was rebuilt during the 1970 water year with an increased capacity.  Prior to Oct. 31, 1973, Browns
   Valley Ditch diverted up to 10 ft3/s at times from the head of the penstock for use in irrigation.  See
   schematic diagram of Yuba River basin.
COOPERATION.--Records provided by Yuba County Water Agency, under general supervision of the U.S. Geological
   Survey, in connection with a Federal Energy Regulatory Commission project.


                  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      1360     1300     1200     1130     3030     1750     2540     3260     3530     1920     2640     2600
  2      1500     1300      868     1360     3080     1750     2150     3320     3540     1160     2860     2420
  3      1450     1300      986     1480     3130     1760     2140     2900     3440     2280     2460     2580
  4       824     1300     1130     1550     3130     1590     2540     3090     3550     2210     2510     2610
  5      1570     1300      578     1490     3090     1790     2340     3120     3560     2200     2540     2760

  6       596     1310     1260     1440     3080     1760     2710     3140     3560     2130     2610     2290
  7       620     1000     1020     1550     3080     3540     2850     3340     3340     1840     2650     2370
  8      1040      203      925     1760     3100     3540     3100     3150     3240     1920     2780     1270
  9      1080     1050      946     1530     3100     3540     3270     2520     2590     1610     2510      876
 10      1240     1270     1110     1300     3100     3540     3300     3370     2720     2070     2020      548

 11      1300     1230      560     1420     3100     3530     3370     3080     2690     2190     3030      600
 12      1300     1110     1610     1840     3100     3540     3440     3130     2940     2340     2920      480
 13      1300     1160     3100     1580     2810     3540     3210     3140     2340     1450     2600      914
 14      1310     1440     3100     1610     3090     3050     2400     3460     2890     2020     3000      460
 15      1310     1150     3100     1390     3090     3550     3070     3520     1180     2000     2640      421

 16      1310     1140     3120      729     3090     3550     2870     3520      977     1870     2710      745
 17      1300     1050     3120       88     3080     3490     1450     3070     1400     2270     2160      712
 18      1300     1420     3120     2290     3080     3330     1590     1870     1240     2220     2010       90
 19      1310     1200     2520     1100     2800     3540     1010     3070     1180     1440     2300      759
 20      1300     1480      589     1910     1660     3550     1750     3490     1640     2050     1810      857

 21      1310      682     2120     2130     1330     3550     2970     3550     1340     2060     2270      233
 22      1310     1210     1080     2540     1480     3540     3110     3590     1800     2120     1840      521
 23      1310     1100     1170     2400     1730     3540     1460     3590     1890     2500     2090      734
 24      1300     1380     1470     1050     1730     3540     3460     3590     2170     2460     2070      457
 25      1310      895     1210       71     1730     3540     2530     3590     1650     2260     1970      484

 26      1310      790     1650      936     1720     3540     2750     3590     1750     2790     2320      643
 27      1310     1320     1610     2830     1740     3540     2710     3590     2250     1270     1890      569
 28      1310      898     1580     2010     1740     3540     2430     3590     1660     2220     1730      882
 29      1330     1020     1310     3020     1750     3540     2600     3510     1730     2760     2220     1680
 30      1240     1100      806     3030      ---     2960     3220     3610     2230     2630     2280     2020
 31      1300      ---      823     3010      ---     3020      ---     3610      ---     2440     2280      ---

TOTAL   38660    34108    48791    51574    74770    97080    78340   101970    70017    64700    73720    34585
MEAN     1247     1137     1574     1664     2578     3132     2611     3289     2334     2087     2378     1153
MAX      1570     1480     3120     3030     3130     3550     3460     3610     3560     2790     3030     2760
MIN       596      203      560       71     1330     1590     1010     1870      977     1160     1730       90
AC-FT   76680    67650    96780   102300   148300   192600   155400   202300   138900   128300   146200    68600


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 1996, BY WATER YEAR (WY)

MEAN     1208     1154     1395     1475     1555     1584     1656     1481     1641     1724     1873     1413
MAX      2497     2433     3262     3496     3449     3519     3508     3565     3629     3057     3130     2995
(WY)     1976     1976     1975     1984     1995     1980     1993     1982     1983     1983     1984     1980
MIN      .000      302     96.6      152     54.6     39.3      103      206      404      386      319     .000
(WY)     1975     1978     1978     1977     1977     1977     1979     1977     1977     1977     1977     1974

SUMMARY STATISTICS           FOR 1995 CALENDAR YEAR        FOR 1996 WATER YEAR           WATER YEARS 1971 - 1996

ANNUAL TOTAL                      804790                     768315
ANNUAL MEAN                         2205                       2099                       1514
HIGHEST ANNUAL MEAN                                                                       2686              1983
LOWEST ANNUAL MEAN                                                                         316              1977
HIGHEST DAILY MEAN                  3550     Apr 26            3610     May 30            4200       Jun  2 1971
LOWEST DAILY MEAN                     53     Jan  6              71     Jan 25                .00    Mar 14 1971
ANNUAL SEVEN-DAY MINIMUM             111     Jan  5             520     Sep 21                .00    Feb 29 1972
ANNUAL RUNOFF (AC-FT)            1596000                    1524000                    1097000
10 PERCENT EXCEEDS                  3470                       3520                       3360
50 PERCENT EXCEEDS                  2050                       2030                       1220
90 PERCENT EXCEEDS                   762                        909                        141