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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 >  21FLWQA_WQX >  21FLWQA_WQX-14SEAS090

Northern end of Blacks Island (21FLWQA_WQX-14SEAS090) site data in the Water Quality Portal

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

This estuary site, maintained by the FDEP Watershed Assessment Section (WAS) (identifier 21FLWQA_WQX), has the name "Northern end of Blacks Island" and has the identifier 21FLWQA_WQX-14SEAS090. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)03140101.

This site is located in Gulf County County, Florida at 29.7348333000 degrees latitude and -85.3316660000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolation-Photo" and the accuracy is Unknown seconds. The source map scale is 1:0.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21FLWQA_WQX-14SEAS090" 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, Algae, Cyanobacteria 2013 - 2025
Biological, Algae, Phytoplankton 2013 - 2025
Biological, Photosynthetic Pigments 2016 - 2017
Nutrient 2013 - 2025
Organics, Other 2013 - 2019
Physical 2013 - 2025
*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 21FLWQA_WQX
OrganizationFormalName FDEP Watershed Assessment Section (WAS)
MonitoringLocationIdentifier 21FLWQA_WQX-14SEAS090
MonitoringLocationName Northern end of Blacks Island
MonitoringLocationTypeName Estuary
HUCEightDigitCode 03140101
LatitudeMeasure 29.7348333000
LongitudeMeasure -85.3316660000
SourceMapScaleNumeric 0
HorizontalAccuracyMeasure/MeasureValue Unknown
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolation-Photo
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 12
CountyCode 045
ProviderName STORET