Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS 14203500 TUALATIN RIVER NEAR DILLEY, OR

  Stream Site

DESCRIPTION:
Latitude 45°28'30",   Longitude 123°07'23"   NAD27
Washington County, Oregon, Hydrologic Unit 17090010
Drainage area: 125 square miles
Datum of gage: 147.57 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2016-12-07  
 Daily Data
    Temperature, water, degrees Celsius  1967-10-01  2016-12-06  1485 
    Temperature, water, degrees Fahrenheit  1963-11-22  1967-09-30  2546 
    Discharge, cubic feet per second  1939-10-01  2016-12-06  28192 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2016-03-26  2016-12-06  744 
    pH, water, unfiltered, field, standard units  2016-03-26  2016-12-06  750 
    Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, parts per billion quinine sulfate equivalents (ppb QSE)  2016-03-26  2016-12-06  750 
    Chlorophylls, water, in situ, fluorometric method, excitation at 470 +-15 nm, emission at 685 +-20 nm, micrograms per liter  2016-03-26  2016-12-06  753 
    Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, micrograms per liter  2016-03-26  2016-12-06  753 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2016-03-26  2016-12-06  750 
 Daily Statistics 
    Discharge, cubic feet per second  1939-10-01  2016-08-09 28073 
 Monthly Statistics 
    Discharge, cubic feet per second  1939-10  2016-08  
 Annual Statistics 
    Discharge, cubic feet per second  1940  2016  
 Peak streamflow 1940-02-06  2015-02-07  76 
 Field measurements 1977-12-14  2016-10-31  218 
 Field/Lab water-quality samples 1981-10-28  2013-03-06  961 
 Water-Year Summary 2006  2015  10 

Additional Data Sources

Begin Date

End Date

Count
 Instantaneous-Data Archive  **offsite** 1986-10-01  2007-09-30  602212 
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