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USGS 11303500 SAN JOAQUIN R NR VERNALIS CA

  Stream Site

DESCRIPTION:
Latitude 37°40'34",   Longitude 121°15'55"   NAD27
San Joaquin County, California, Hydrologic Unit 18040002
Drainage area: 13,539 square miles
Datum of gage: 25 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2016-09-29  
 Daily Data
    Temperature, water, degrees Celsius  1961-10-27  2016-09-28  33341 
    Discharge, cubic feet per second  1923-10-01  2016-09-28  32141 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1985-10-10  2005-09-06  12896 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2016-08-20  2016-09-28  105 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- TS032: FTS DTS-12  2014-09-18  2016-08-18  1542 
    Suspended sediment concentration, milligrams per liter  1956-11-01  2015-09-30  20982 
    Suspended sediment discharge, short tons per day  1956-11-01  2015-09-30  21515 
 Daily Statistics 
    Discharge, cubic feet per second  1923-10-01  2015-10-14 31791 
    Suspended sediment concentration, milligrams per liter  1956-11-01  2015-09-30 20982 
    Suspended sediment discharge, short tons per day  1956-11-01  2015-09-30 21515 
 Monthly Statistics 
    Discharge, cubic feet per second  1923-10  2015-10  
    Suspended sediment concentration, milligrams per liter  1956-11  2015-09  
    Suspended sediment discharge, short tons per day  1956-11  2015-09  
 Annual Statistics 
    Discharge, cubic feet per second  1924  2016  
    Suspended sediment concentration, milligrams per liter  1957  2015  
    Suspended sediment discharge, short tons per day  1957  2015  
 Peak streamflow 1923-10-15  2014-12-17  87 
 Field measurements 1988-09-19  2016-08-18  404 
 Field/Lab water-quality samples 1950-12-02  2016-09-20  6512 
 Water-Year Summary 2005  2015  11 

Additional Data Sources

Begin Date

End Date

Count
 Instantaneous-Data Archive  **offsite** 1986-11-30  2007-09-30  656141 
OPERATION:
Record for this site is maintained by the USGS California Water Science Center
Email questions about this site to California Water Science Center Water-Data Inquiries