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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  2021-07-23  
 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  2021-07-22  1368 
    Discharge, cubic feet per second  1930-03-01  2021-07-22  33382 
    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  2021-07-22  1962 
    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  2021-07-22  1947 
    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  2021-07-22  1965 
    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  2021-07-22  1962 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2011-12-03  2019-06-10  7173 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2019-07-25  2021-07-22  1995 
 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  2019-05-26 1752 
    Discharge, cubic feet per second  1930-03-01  2021-06-24 33354 
    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  2019-05-26 1750 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2019-07-25  2021-04-04 547 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2013-11-23  2019-05-26 1754 
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2019-07-25  2021-04-04 542 
    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 1759 
    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  2021-04-04 547 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2011-12-03  2019-06-10 2391 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2019-12-31  2021-04-04 427 
 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  2019-05  
    Discharge, cubic feet per second  1930-03  2021-06  
    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  2019-05  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2019-07  2021-04  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2013-11  2019-05  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2019-07  2021-04  
    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  2019-05  
    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  2021-04  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2011-12  2019-06  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2019-12  2021-04  
 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  2021  
    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  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- From multiparameter sonde  2019  2021  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2014  2019  
    Dissolved oxygen, water, unfiltered, milligrams per liter -- From multiparameter sonde  2019  2021  
    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  
    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  2021  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2012  2019  
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen -- SUNA  2020  2021  
 Peak streamflow 1931-04-03  2020-05-02  90 
 Field measurements 1930-03-25  2021-06-25  385 
 Field/Lab water-quality samples 1965-08-09  2021-06-15  47 
 Water-Year Summary 2006  2020  15 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Maryland Water Science Center
Email questions about this site to Maryland Water Science Center Water-Data Inquiries