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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 >  TCEQMAIN >  TCEQMAIN-11139

BRAYS BAYOU AT SOUTH MAIN ST (TCEQMAIN-11139) 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 Texas Commission on Environmental Quality (identifier TCEQMAIN), has the name "BRAYS BAYOU AT SOUTH MAIN ST" and has the identifier TCEQMAIN-11139. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)12040104.

This site is located in Harris County County, Texas at 29.6973000000 degrees latitude and -95.4120000000 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-11139" 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 1992 - 2003
Biological, Algae, Phytoplankton 1992 - 2010
Biological, Counts 2012 - 2017
Information 1993 - 2025
Inorganics, Major, Metals 1982 - 2003
Inorganics, Major, Non-metals 1973 - 2025
Inorganics, Minor, Metals 1975 - 1998
Inorganics, Minor, Non-metals 1979 - 1998
Microbiological 1973 - 2025
Nutrient 1973 - 2025
Organics, Other 1973 - 2025
Organics, PCBs 2008 - 2009
Organics, Pesticide 1993 - 1993
Physical 1973 - 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 TCEQMAIN
OrganizationFormalName Texas Commission on Environmental Quality
MonitoringLocationIdentifier TCEQMAIN-11139
MonitoringLocationName BRAYS BAYOU AT SOUTH MAIN ST
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 12040104
LatitudeMeasure 29.6973000000
LongitudeMeasure -95.4120000000
HorizontalCollectionMethodName Interpolation-Photo
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 48
CountyCode 201
ProviderName STORET