Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

WQP Home >  Providers >  NWIS >  USGS-MD >  USGS-01652590

POTOMAC RIVER AT ALEXANDRIA, VA (USGS-01652590) site data in the Water Quality Portal

Data Provider: NWIS (Learn more about Water Quality Portal Data Providers)

This estuary site, maintained by the USGS Maryland Water Science Center (identifier USGS-MD), has the name "POTOMAC RIVER AT ALEXANDRIA, VA" and has the identifier USGS-01652590. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02070010. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 11880.00 sq mi.

This site is located in District Of Columbia County, District Of Columbia at 38.79289139000000 degrees latitude and -77.0371989000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 1 seconds.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-01652590" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Biological 1980 - 1980
Biological, Algae, Phytoplankton 1980 - 1980
Biological, Counts 1979 - 1981
Information 1966 - 1981
Inorganics, Major, Metals 1966 - 1980
Inorganics, Major, Non-metals 1966 - 1981
Inorganics, Minor, Metals 1966 - 1980
Nutrient 1966 - 1981
Organics, Other 1980 - 1981
Organics, PCBs 1981 - 1981
Organics, Pesticide 1981 - 1981
Physical 1966 - 1981
Stable Isotopes 1981 - 1981
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier USGS-MD
OrganizationFormalName USGS Maryland Water Science Center
MonitoringLocationIdentifier USGS-01652590
MonitoringLocationName POTOMAC RIVER AT ALEXANDRIA, VA
MonitoringLocationTypeName Estuary
HUCEightDigitCode 02070010
DrainageAreaMeasure/MeasureValue 11880.00
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 38.79289139000000
LongitudeMeasure -77.0371989000000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 11
CountyCode 001
ProviderName NWIS