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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 >  21MSWQ_WQX >  21MSWQ_WQX-MS16-291

ST LOUIS BAY (21MSWQ_WQX-MS16-291) site data in the Water Quality Portal

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

This estuary site, maintained by the MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY (identifier 21MSWQ_WQX), has the name "ST LOUIS BAY" and has the identifier 21MSWQ_WQX-MS16-291. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)03170009.

This site is located in Hancock County County, Mississippi at 30.3469180000 degrees latitude and -89.3735730000 degrees longitude using the datum WGS84. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21MSWQ_WQX-MS16-291" 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, Phytoplankton 2016 - 2016
Information 2016 - 2016
Inorganics, Minor, Metals 2016 - 2016
Inorganics, Minor, Non-metals 2016 - 2016
Nutrient 2016 - 2016
Organics, Other 2016 - 2016
Organics, PCBs 2016 - 2016
Organics, Pesticide 2016 - 2016
Physical 2016 - 2016
Toxicity 2016 - 2016
*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 21MSWQ_WQX
OrganizationFormalName MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY
MonitoringLocationIdentifier 21MSWQ_WQX-MS16-291
MonitoringLocationName ST LOUIS BAY
MonitoringLocationTypeName Estuary
MonitoringLocationDescriptionText County: Hancock Ecoregion: 75k
HUCEightDigitCode 03170009
LatitudeMeasure 30.3469180000
LongitudeMeasure -89.3735730000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName WGS84
CountryCode US
StateCode 28
CountyCode 045
ProviderName STORET