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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  2019-10-14  
 Daily Data
    Temperature, water, degrees Celsius -- 4.1 ft from riverbed (middle)  2006-07-13  2019-10-13  14030 
    Temperature, water, degrees Celsius -- 1.0 ft from riverbed (bottom)  2006-07-13  2019-10-13  14164 
    Temperature, water, degrees Celsius -- 7.1 ft from riverbed (top)  1988-10-01  2019-10-13  32850 
    Temperature, water, degrees Celsius -- From multiparameter sonde  2013-11-23  2019-07-07  5297 
    Temperature, water, degrees Celsius -- From multiparameter sonde  2019-07-25  2019-10-13  162 
    Discharge, cubic feet per second  1930-03-01  2019-10-13  32734 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1992-09-30  2019-10-13  24755 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2013-11-23  2019-07-07  5291 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2019-07-25  2019-10-13  243 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2013-11-23  2019-07-07  5303 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2019-07-25  2019-10-13  240 
    pH, water, unfiltered, field, standard units -- From multiparameter sonde  2013-11-23  2019-07-07  5261 
    pH, water, unfiltered, field, standard units -- From multiparameter sonde  2019-07-25  2019-10-13  237 
    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  2019-07-07  5318 
    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  2019-10-13  240 
    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  2019-05-09 4519 
    Temperature, water, degrees Celsius -- 1.0 ft from riverbed (bottom)  2006-07-13  2019-05-09 4566 
    Temperature, water, degrees Celsius -- 7.1 ft from riverbed (top)  1988-10-01  2019-05-09 10793 
    Temperature, water, degrees Celsius -- From multiparameter sonde  2013-11-23  2019-03-12 1678 
    Discharge, cubic feet per second  1930-03-01  2018-10-31 32387 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1992-09-30  2019-02-04 8006 
    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  2018-10-02 1595 
    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  2019-05  
    Temperature, water, degrees Celsius -- 1.0 ft from riverbed (bottom)  2006-07  2019-05  
    Temperature, water, degrees Celsius -- 7.1 ft from riverbed (top)  1988-10  2019-05  
    Temperature, water, degrees Celsius -- From multiparameter sonde  2013-11  2019-03  
    Discharge, cubic feet per second  1930-03  2018-10  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1992-09  2019-02  
    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  2018-10  
    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  2019-09-25  379 
 Field/Lab water-quality samples 1965-08-09  2019-07-29  42 
 Water-Year Summary 2006  2018  13 
 Revisions  Loading...
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