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.

New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here.

This legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  NWIS >  USGS-GA >  USGS-02231220

ST. MARYS RIVER AT BOULOGNE, FLA. (USGS-02231220) site data in the Water Quality Portal

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

This stream site, maintained by the USGS Georgia Water Science Center (identifier USGS-GA), has the name "ST. MARYS RIVER AT BOULOGNE, FLA." and has the identifier USGS-02231220. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)03070204. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 1180 sq mi and the contributing drainage area is 1180 sq mi.

This site is located in Nassau County County, Florida at 30.77662250000000 degrees latitude and -81.9787250000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 5 seconds.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-02231220" 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*
Inorganics, Major, Metals 1958 - 1999
Inorganics, Major, Non-metals 1958 - 1999
Inorganics, Minor, Metals 1965 - 1999
Inorganics, Minor, Non-metals 1998 - 1999
Microbiological 1974 - 1998
Nutrient 1958 - 1998
Organics, Other 1974 - 1998
Physical 1958 - 1999
*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-GA
OrganizationFormalName USGS Georgia Water Science Center
MonitoringLocationIdentifier USGS-02231220
MonitoringLocationName ST. MARYS RIVER AT BOULOGNE, FLA.
MonitoringLocationTypeName Stream
HUCEightDigitCode 03070204
DrainageAreaMeasure/MeasureValue 1180
DrainageAreaMeasure/MeasureUnitCode sq mi
ContributingDrainageAreaMeasure/MeasureValue 1180
ContributingDrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 30.77662250000000
LongitudeMeasure -81.9787250000000
HorizontalAccuracyMeasure/MeasureValue 5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 12
CountyCode 089
ProviderName NWIS