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.

WQP Home >  Providers >  STORET >  TCEQMAIN >  TCEQMAIN-16668

L HOUSTON W OF LAKE SHADOWS SU (TCEQMAIN-16668) site data in the Water Quality Portal

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

This reservoir site, maintained by the Texas Commission on Environmental Quality (identifier TCEQMAIN), has the name "L HOUSTON W OF LAKE SHADOWS SU" and has the identifier TCEQMAIN-16668. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)12040101.

This site is located in Harris County County, Texas at 29.9484000000 degrees latitude and -95.1601000000 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-16668" 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, Photosynthetic Pigments 2005 - 2024
Biological, Counts 2015 - 2017
Information 2001 - 2024
Inorganics, Major, Non-metals 2000 - 2024
Inorganics, Minor, Metals 2000 - 2001
Microbiological 2000 - 2024
Nutrient 2000 - 2024
Organics, Other 2003 - 2024
Physical 2000 - 2024
*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-16668
MonitoringLocationName L HOUSTON W OF LAKE SHADOWS SU
MonitoringLocationTypeName Reservoir
HUCEightDigitCode 12040101
LatitudeMeasure 29.9484000000
LongitudeMeasure -95.1601000000
HorizontalCollectionMethodName Interpolation-Photo
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 48
CountyCode 201
ProviderName STORET