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USGS 14211720 WILLAMETTE RIVER AT PORTLAND, OR

  Stream: Tidal 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)    1988-10-01  2022-06-30  
 Daily Data
    Temperature, water, degrees Celsius  1975-11-07  2022-06-29  23043 
    Discharge, cubic feet per second  1972-10-01  2022-06-29  18165 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1975-12-02  2022-06-29  19589 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01-22  2022-06-29  14583 
    pH, water, unfiltered, field, standard units  2009-01-22  2022-06-29  14520 
    Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)  2019-07-01  2022-06-29  3272 
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01-22  2022-06-29  6189 
    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  2022-06-29  14536 
    Discharge, tidally filtered, cubic feet per second  2006-09-30  2022-06-27  5746 
 Daily Statistics 
    Temperature, water, degrees Celsius  2001-11-02  2021-07-28 5964 
    Discharge, cubic feet per second  1972-10-01  2021-10-11 17908 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1975-12-02  2021-07-28 7460 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01-22  2021-07-28 4521 
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01-22  2011-09-29 971 
    Discharge, tidally filtered, cubic feet per second  2006-09-30  2021-10-11 5141 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2001-11  2021-07  
    Discharge, cubic feet per second  1972-10  2021-10  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1975-12  2021-07  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009-01  2021-07  
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009-01  2011-09  
    Discharge, tidally filtered, cubic feet per second  2006-09  2021-10  
 Annual Statistics 
    Temperature, water, degrees Celsius  2002  2021  
    Discharge, cubic feet per second  1973  2022  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1976  2021  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2009  2021  
    Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter  2009  2011  
    Discharge, tidally filtered, cubic feet per second  2006  2022  
 Peak streamflow 1894-06-07  2020-01-30  50 
 Field measurements 1987-11-20  2022-05-24  232 
 Field/Lab water-quality samples 1974-10-25  2022-06-07  902 
 Water-Year Summary 2006  2021  16 
 Revisions  Loading...
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