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USGS 14211720 WILLAMETTE RIVER AT PORTLAND, OR

  Stream Site

DESCRIPTION:
Latitude 45°31'03",   Longitude 122°40'09"   NAD83
Multnomah County, Oregon, Hydrologic Unit 17090012
Drainage area: 11,200 square miles
Datum of gage: 1.55 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2009-01-22  2015-02-26  
 Daily Data
    Temperature, water, degrees Celsius  1975-11-07  2015-02-25  14924 
    Discharge, cubic feet per second  1972-10-01  2015-02-25  15475 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1975-12-02  2015-02-25  15408 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01-22  2015-02-25  6571 
    pH, water, unfiltered, field, standard units  2009-01-22  2015-02-25  6501 
    UV fluorescence, water, in situ, single band, 370 nm excitation, 470 nm emission, relative fluorescence units (RFU)  2013-02-04  2015-02-25  2235 
    Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, parts per billion quinine sulfate equivalents (ppb QSE)  2012-12-19  2015-02-25  2322 
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01-22  2015-02-25  6159 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2009-01-22  2015-02-25  6504 
    Depth of sensor below water surface, feet  2009-01-22  2015-02-25  5301 
    Phycocyanins (cyanobacteria), water, in situ, in vivo fluorescence, in vivo fluorescence units  2013-02-04  2015-02-25  2223 
    Nitrate, water, in situ, milligrams per liter as nitrogen  2013-02-17  2015-02-25  2172 
 Daily Statistics 
    Temperature, water, degrees Celsius  1978-02-09  2014-12-15 4183 
    Discharge, cubic feet per second  1972-10-01  2014-10-06 15346 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1975-12-02  2014-12-15 5059 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01-22  2014-12-15 2116 
    pH, water, unfiltered, field, standard units  2009-01-22  2014-12-15 2082 
    Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, parts per billion quinine sulfate equivalents (ppb QSE)  2012-12-19  2014-02-12 397 
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01-22  2011-09-30 972 
    Depth of sensor below water surface, feet  2009-01-22  2014-06-22 1590 
 Monthly Statistics 
    Temperature, water, degrees Celsius  1978-02  2014-12  
    Discharge, cubic feet per second  1972-10  2014-10  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1975-12  2014-12  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01  2014-12  
    pH, water, unfiltered, field, standard units  2009-01  2014-12  
    Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, parts per billion quinine sulfate equivalents (ppb QSE)  2012-12  2014-02  
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01  2011-09  
    Depth of sensor below water surface, feet  2009-01  2014-06  
 Annual Statistics 
    Temperature, water, degrees Celsius  1978  2015  
    Discharge, cubic feet per second  1973  2015  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1976  2015  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009  2015  
    pH, water, unfiltered, field, standard units  2009  2015  
    Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, parts per billion quinine sulfate equivalents (ppb QSE)  2013  2014  
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009  2011  
    Depth of sensor below water surface, feet  2009  2014  
 Peak streamflow 1894-06-07  2012-12-05  35 
 Field measurements 1987-11-20  2015-01-22  123 
 Field/Lab water-quality samples 1974-10-25  2015-01-28  658 
 Water-Year Summary 2006  2014  9 

Additional Data Sources

Begin Date

End Date

Count
 Instantaneous-Data Archive  **offsite** 1988-10-01  2007-05-06  174087 
OPERATION:
Record for this site is maintained by the USGS Oregon Water Science Center
Email questions about this site to Oregon Water Science Center Water-Data Inquiries