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USGS 11273400 SAN JOAQUIN R AB MERCED R NR NEWMAN CA

  Stream Site

DESCRIPTION:
Latitude 37°20'50.2",   Longitude 120°58'30.5"   NAD27
Stanislaus County, California, Hydrologic Unit 18040001
Drainage area: 7,949 square miles
Datum of gage: 2.55 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2009-01-21  2025-10-30  
 Daily Data
    Temperature, water, degrees Celsius  2009-08-28  2025-10-30  15110 
    Discharge, cubic feet per second  2009-08-28  2025-10-29  5363 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2009-08-29  2025-10-29  14498 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-10-06  2025-10-30  14498 
    pH, water, unfiltered, field, standard units  2012-04-20  2025-10-30  13175 
    Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)  2016-10-04  2022-02-22  5319 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2012-04-21  2019-01-06  6094 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2019-02-12  2025-10-29  4341 
 Daily Statistics 
    Temperature, water, degrees Celsius  2010-10-01  2025-05-07 4107 
    Discharge, cubic feet per second  2009-08-28  2024-10-23 4995 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2010-10-01  2025-05-07 3918 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2010-10-01  2025-05-07 3982 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2010-10  2025-05  
    Discharge, cubic feet per second  2009-08  2024-10  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2010-10  2025-05  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2010-10  2025-05  
 Annual Statistics 
    Temperature, water, degrees Celsius  2011  2025  
    Discharge, cubic feet per second  2009  2025  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2011  2025  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2011  2025  
 Peak streamflow 2010-03-06  2024-03-06  15 
 Field measurements 2009-09-03  2025-09-25  163 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 2014-08-12  2016-10-03  5 
 Water-Year Summary 2010  2024  15 
 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