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USGS 11074000 SANTA ANA R BL PRADO DAM CA

  Stream Site

DESCRIPTION:
Latitude 33°53'00",   Longitude 117°38'40"   NAD27
Riverside County, California, Hydrologic Unit 18070203
Drainage area: 2,258 square miles
Contributing drainage area: 1,490 square miles,
Datum of gage: 451.58 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1988-10-01  2025-07-10  
 Daily Data
    Temperature, water, degrees Celsius  1968-02-02  2025-07-10  39744 
    Discharge, cubic feet per second  1940-09-30  2025-10-27  31074 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1968-06-25  2025-07-09  47129 
    Chloride, water, filtered, milligrams per liter  1970-10-01  1971-09-29  91 
    Suspended sediment concentration, milligrams per liter  1973-10-01  1982-09-29  3285 
    Suspended sediment discharge, short tons per day  1973-10-01  1982-09-29  3285 
 Daily Statistics 
    Discharge, cubic feet per second  1940-09-30  2025-07-09 30964 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1968-06-25  2024-09-14 7778 
    Chloride, water, filtered, milligrams per liter  1970-10-01  1971-09-29 91 
    Suspended sediment concentration, milligrams per liter  1973-10-01  1982-09-29 3285 
    Suspended sediment discharge, short tons per day  1973-10-01  1982-09-29 3285 
 Monthly Statistics 
    Discharge, cubic feet per second  1940-09  2025-07  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1968-06  2024-09  
    Chloride, water, filtered, milligrams per liter  1970-10  1971-09  
    Suspended sediment concentration, milligrams per liter  1973-10  1982-09  
    Suspended sediment discharge, short tons per day  1973-10  1982-09  
 Annual Statistics 
    Discharge, cubic feet per second  1940  2025  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1968  2024  
    Chloride, water, filtered, milligrams per liter  1971  1971  
    Suspended sediment concentration, milligrams per liter  1974  1982  
    Suspended sediment discharge, short tons per day  1974  1982  
 Peak streamflow 1938-03-02  2024-02-06  85 
 Field measurements 1982-03-19  2025-09-23  1080 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1966-10-11  2024-02-29  2999 
 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