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 user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  21FLNWFD >  21FLNWFD-S360

Blackwater River @ SR4 (21FLNWFD-S360) site data in the Water Quality Portal

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

This river/stream site, maintained by the Northwest Florida Water District (identifier 21FLNWFD), has the name "Blackwater River @ SR4" and has the identifier 21FLNWFD-S360. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)03140104.

This site is located in Santa Rosa County County, Florida at 30.7047222 degrees latitude and -86.8816667 degrees longitude using the datum OTHER. No horizontal location accuracy metadata is available. This site is at an elevation of 0 ft No vertical location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21FLNWFD-S360" 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, Minor, Metals 2001 - 2003
Microbiological 2001 - 2001
Nutrient 2000 - 2003
Physical 2001 - 2003
*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 21FLNWFD
OrganizationFormalName Northwest Florida Water District
MonitoringLocationIdentifier 21FLNWFD-S360
MonitoringLocationName Blackwater River @ SR4
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 03140104
LatitudeMeasure 30.7047222
LongitudeMeasure -86.8816667
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName OTHER
VerticalMeasure/MeasureValue 0
VerticalMeasure/MeasureUnitCode ft
VerticalCoordinateReferenceSystemDatumName Unknown
CountryCode US
StateCode 12
CountyCode 113
ProviderName STORET