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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 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 >  TCEQMAIN >  TCEQMAIN-18397

MATAGORDA BAY SE QUADRANT (TCEQMAIN-18397) site data in the Water Quality Portal

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

This estuary site, maintained by the Texas Commission on Environmental Quality (identifier TCEQMAIN), has the name "MATAGORDA BAY SE QUADRANT" and has the identifier TCEQMAIN-18397. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)12100401.

This site is located in Matagorda County County, Texas at 28.5167000000 degrees latitude and -96.2833000000 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 "TCEQMAIN-18397" 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 2015 - 2015
Biological, Algae, Phytoplankton, Photosynthetic Pigments 2005 - 2021
Biological, Counts 2005 - 2017
Information 2004 - 2021
Inorganics, Major, Non-metals 2004 - 2021
Inorganics, Minor, Metals 2005 - 2005
Inorganics, Minor, Non-metals 2005 - 2005
Microbiological 2004 - 2020
Nutrient 2004 - 2021
Organics, Other 2004 - 2021
Physical 2004 - 2021
*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 TCEQMAIN
OrganizationFormalName Texas Commission on Environmental Quality
MonitoringLocationIdentifier TCEQMAIN-18397
MonitoringLocationName MATAGORDA BAY SE QUADRANT
MonitoringLocationTypeName Estuary
HUCEightDigitCode 12100401
LatitudeMeasure 28.5167000000
LongitudeMeasure -96.2833000000
SourceMapScaleNumeric 25000
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 48
CountyCode 321
ProviderName STORET