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USGS 11530000 TRINITY R A HOOPA CA

  Stream Site

DESCRIPTION:
Latitude 41°03'00",   Longitude 123°40'21"   NAD27
Humboldt County, California, Hydrologic Unit 18010211
Drainage area: 2,853 square miles
Datum of gage: 278.69 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Daily Data
    Temperature, water, degrees Celsius  1964-02-28  2025-10-27  34594 
    Temperature, water, degrees Celsius  1959-10-02  1977-08-31  1696 
    Discharge, cubic feet per second  1911-10-01  2025-10-26  35819 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2002-06-28  2002-10-28  222 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2002-06-28  2002-10-28  196 
    pH, water, unfiltered, field, standard units  2002-06-28  2002-10-28  222 
    Suspended sediment concentration, milligrams per liter  1959-10-02  1979-09-29  6418 
    Suspended sediment discharge, short tons per day  1959-10-01  1979-09-29  7281 
 Daily Statistics 
    Temperature, water, degrees Celsius  2016-10-01  2024-10-28 2932 
    Discharge, cubic feet per second  1911-10-01  2024-10-28 35456 
    Suspended sediment concentration, milligrams per liter  1959-10-02  1979-09-29 6418 
    Suspended sediment discharge, short tons per day  1959-10-01  1979-09-29 7281 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2016-10  2024-10  
    Discharge, cubic feet per second  1911-10  2024-10  
    Suspended sediment concentration, milligrams per liter  1959-10  1979-09  
    Suspended sediment discharge, short tons per day  1959-10  1979-09  
 Annual Statistics 
    Temperature, water, degrees Celsius  2017  2025  
    Discharge, cubic feet per second  1912  2025  
    Suspended sediment concentration, milligrams per liter  1960  1979  
    Suspended sediment discharge, short tons per day  1960  1979  
 Peak streamflow 1912-01-25  2024-01-14  98 
 Field measurements 1936-02-23  2025-07-15  411 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1907-01-05  2017-09-20  599 
 Water-Year Summary 2005  2024  20 
 Revisions  Loading...
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