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USGS 01646500 POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA

  Stream Site

DESCRIPTION:
Latitude 38°56'59.2",   Longitude 77°07'39.5"   NAD83
Montgomery County, Maryland, Hydrologic Unit 02070008
Drainage area: 11,560 square miles
Datum of gage: 37.20 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1972-06-09  2019-12-12  
 Daily Data
    Temperature, water, degrees Celsius -- 4.1 ft from riverbed (middle)  2006-07-13  2019-09-30  13991 
    Temperature, water, degrees Celsius -- 1.0 ft from riverbed (bottom)  2006-07-13  2019-09-30  14125 
    Temperature, water, degrees Celsius -- 7.1 ft from riverbed (top)  1988-10-01  2019-09-30  32820 
    Temperature, water, degrees Celsius -- From multiparameter sonde  2013-11-23  2019-05-26  5256 
    Temperature, water, degrees Celsius -- From multiparameter sonde  2019-07-25  2019-12-11  272 
    Discharge, cubic feet per second  1930-03-01  2019-12-11  32792 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1992-09-30  2019-09-30  24722 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2013-11-23  2019-05-26  5250 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2019-07-25  2019-12-11  408 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2013-11-23  2019-05-26  5262 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2019-07-25  2019-12-11  405 
    pH, water, unfiltered, field, standard units -- From multiparameter sonde  2013-11-23  2019-05-26  5205 
    pH, water, unfiltered, field, standard units -- From multiparameter sonde  2019-07-25  2019-12-11  405 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- From multiparameter sonde  2013-11-23  2019-05-26  5277 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- From multiparameter sonde  2019-07-25  2019-12-11  405 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2011-12-03  2018-10-02  6618 
 Daily Statistics 
    Temperature, water, degrees Celsius -- 4.1 ft from riverbed (middle)  2006-07-13  2019-09-30 4663 
    Temperature, water, degrees Celsius -- 1.0 ft from riverbed (bottom)  2006-07-13  2019-09-30 4708 
    Temperature, water, degrees Celsius -- 7.1 ft from riverbed (top)  1988-10-01  2019-09-30 10935 
    Temperature, water, degrees Celsius -- From multiparameter sonde  2013-11-23  2019-03-12 1678 
    Discharge, cubic feet per second  1930-03-01  2019-07-01 32630 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1992-09-30  2019-09-30 8239 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2013-11-23  2019-03-12 1676 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2013-11-23  2019-03-12 1680 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- From multiparameter sonde  2013-11-23  2019-03-12 1685 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2011-12-03  2018-07-08 2131 
 Monthly Statistics 
    Temperature, water, degrees Celsius -- 4.1 ft from riverbed (middle)  2006-07  2019-09  
    Temperature, water, degrees Celsius -- 1.0 ft from riverbed (bottom)  2006-07  2019-09  
    Temperature, water, degrees Celsius -- 7.1 ft from riverbed (top)  1988-10  2019-09  
    Temperature, water, degrees Celsius -- From multiparameter sonde  2013-11  2019-03  
    Discharge, cubic feet per second  1930-03  2019-07  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1992-09  2019-09  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2013-11  2019-03  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2013-11  2019-03  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- From multiparameter sonde  2013-11  2019-03  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2011-12  2018-07  
 Annual Statistics 
    Temperature, water, degrees Celsius -- 4.1 ft from riverbed (middle)  2006  2019  
    Temperature, water, degrees Celsius -- 1.0 ft from riverbed (bottom)  2006  2019  
    Temperature, water, degrees Celsius -- 7.1 ft from riverbed (top)  1989  2019  
    Temperature, water, degrees Celsius -- From multiparameter sonde  2014  2019  
    Discharge, cubic feet per second  1930  2019  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1992  2019  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2014  2019  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2014  2019  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) -- From multiparameter sonde  2014  2019  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2012  2018  
 Peak streamflow 1931-04-03  2018-06-05  88 
 Field measurements 1930-03-25  2019-11-21  380 
 Field/Lab water-quality samples 1965-08-09  2015-11-04  40 
 Water-Year Summary 2006  2019  14 
 Revisions  Loading...
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