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 >  STORET >  LDEQ319 >  LDEQ319-4425

Black Bayou at La. Hwy. 8 bridge (LDEQ319-4425) 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 LDEQ319 (identifier LDEQ319), has the name "Black Bayou at La. Hwy. 8 bridge" and has the identifier LDEQ319-4425. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)08040207.

This site is located in Catahoula Parish County, Louisiana at 31.8285840000 degrees latitude and -91.7126200000 degrees longitude using the datum NAD83. 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 "LDEQ319-4425" 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*
Information 2017 - 2018
Microbiological 2014 - 2017
Organics, Other 2017 - 2018
Physical 2014 - 2018
*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 LDEQ319
OrganizationFormalName LDEQ319
MonitoringLocationIdentifier LDEQ319-4425
MonitoringLocationName Black Bayou at La. Hwy. 8 bridge
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 08040207
LatitudeMeasure 31.8285840000
LongitudeMeasure -91.7126200000
HorizontalCollectionMethodName GPS Code (Pseudo Range) Differential
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 22
CountyCode 025
ProviderName STORET